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What is epoxy hardener?

The epoxy resin itself is a thermoplastic linear structure. After heating, the solid resin can be softened and melted into a viscous or liquid state. The thermal viscosity of liquid resin decreases. Only when curing agent is added, epoxy resin can be used practically.

Composition of epoxy resin

1. Resin Composition

(1) Epoxy resin: Main component of resin composition, Bisphenol A epoxy resin and other types of epoxy resin

(2) Curing agent: reacting with epoxy resin to form three-dimensional network polymer compounds

1. Modified components

(1) Plasticizers: Plasticizers give flexibility, but reduce heat resistance and drug resistance.

(2) Toughening agent: improve impact resistance, and make other properties reduced little, such as liquid acid carboxylated rubber

(3) Filler: increase weight, improve solidification, mechanical, thermal and electrical properties, such as calcium carbonate, mica, etc.

1. Regulating fluidity components (1) Dilutants: reducing the viscosity of components, which are divided into active diluents and inactive diluents. Thixotropic agent: give thixotropy to components, such as asbestos, silicon powder, etc.

1. Other ingredients: pigments, solvents, defoamers, levelers, tackifiers, etc.

Epoxy hardener chemistry can be widely used because of the combination of these components. Especially curing agent, once the epoxy resin is determined, curing agent plays a decisive role in the technological properties of epoxy resin components and the final properties of curing agent products (products). Epoxy resin itself is a linear structure of thermoplasticity. It can not be used directly. A second component must be added to the resin. Under certain temperature (or humidity) and other conditions, epoxy group of epoxy resin is used for addition polymerization or catalytic polymerization to produce cured materials with three-dimensional network structure (bulk network structure). This compound or resin, which acts as the second component, is called curing agent and is divided into additive curing agent and catalytic curing agent.

Curing agent:

1. Normal temperature curing

Heavy-duty anticorrosive coatings; Civil building adhesives; Civil building coatings; FRP; General binders.

Straight chain aliphatic polyamines, polyamides, alicyclic polyamines, denatured polyamines, polymercaptan

1. Heating curing

(1) Electrical insulating materials: acid anhydride, imidazole compounds, BF3 complex.

(2) Laminating materials: Dicy, aromatic polyamines, linear phenolic resin.

(3) Coatings (Tank: Amino Resin, Phenolic Resin, Powder: Dicy, Aromatic Polyamines, Anhydride).

(4) Molding material: linear phenolic resin.

(5) Binders: Aromatic polyamines, anhydrides, imidazoles, BF3-complexes.

As a one of the most professional epoxy resin and hardener manufacturers, Jiaxing Nanyang Wanshixing Chemical Co. Ltd covers an area of 4 acres with more than 60 employees. We have four advanced production lines and our annual production capacity is 30000 tons, is the largest manufacturer of MTHPA products in China. We sincerely invite and welcome people from all around the world to invest and create more values together.

The principle of epoxy resin hardening reaction is not perfect at present. According to the different hardeners used, it is generally believed that epoxy resin can be thermosetting products through four ways of reaction.

(1) Open-ring connection between epoxy groups;

(2) The epoxy group reacts with the hardener with the active hydrogen functional group and crosslinks.

(3) The epoxy group is crosslinked by the reaction of aromatic or fatty hydroxyl groups in the hardener.

(4) Crosslinking of epoxy group or hydroxyl group with group of hardener

Different kinds of hardeners play different roles in the hardening process. Some hardeners, such as amines, alcohols and phenols, which have single reaction groups, do not participate in the hardening process and only play a catalytic role. The hardener participates in the reaction between macromolecules during the hardening process and forms part of the hardening resin, such as polyamines, polyols, polyanhydrides and other compounds containing multiple reaction groups.

As a professional epoxy hardener manufacturer, Jiaxing Nanyang Wanshixing Chemical Co. Ltd covers an area of 4 acres with more than 60 employees. We have four advanced production lines and our annual production capacity is 30000 tons, is the largest manufacturer of MTHPA products in China. To learn more about the epoxy curing mechanism, please contact us!

Ion exchange resin contains a certain amount of water, which should be kept as much as possible during transportation and storage. If the resin is dehydrated during storage, it should be soaked in concentrated salt water (about 10%) and then diluted gradually. The resin should not be directly put in water to avoid rapid expansion and crushing.

In long-term storage, strong resin should be changed into salt type, weak resin can be changed into hydrogen type or free alkali type, or salt type, and then immersed in clean water. During storage or transportation, resin should be kept in a temperature environment of 5-40 degrees C to avoid supercooling or overheating and affect quality. If there is no insulation equipment in winter, the resin can be stored in salt water, the concentration of salt water can be determined according to the temperature.

The industrial products of ion exchange resins often contain a small amount of oligomers and monomers that do not participate in the reaction, and also contain inorganic impurities such as iron, lead and copper. When the resin is in contact with water, acid, alkali or other solutions, the above substances will be transferred into the solution, affecting the quality of the effluent. Sunresin is a professional manufacturer of ion exchange resin China. If this happens, you can consult it.

Ion exchange resins are easily polluted by suspended substances, colloidal substances, organic substances, bacteria, algae, iron and manganese in long-term use, resulting in the reduction or even loss of ion exchange capacity. Therefore, the resin should be activated periodically according to the situation, and the activation method can be determined according to the pollution situation and conditions. You can also contact Sunresin for a detailed solution.

"Debittering" olives is a complex process. In their natural state, olive fruits are rich in a compound called phenol, which is unacceptable. If olive is to be squeezed into oil, its phenolic substances are not important. Most of them just need to be pressed to produce meat (just wait for the oil to be squeezed). However, edible olives must remove phenolics from them before they are eaten.

At present, the main way to "debitter" olives is to soak them in water, or brine, or brine, and then soak them in sodium hydroxide solution. Later, it was found that tiny resin beads could be used to accomplish this task.

Ion exchange resin is a high porosity polystyrene resin, which adds additional chemical groups to capture different kinds of molecules. There are many kinds of ion exchange resins on the market, usually in the form of hollow beads. These beads have larger surface areas than their volumes, maximizing the number of polymers available for reactions. Beads are also easy to handle.

If this discovery can be translated into commercial operation, the market will begin to have ion exchange resin beads for sale, the saltwater immersion stage can be shortened by three quarters, the alkali step can be completely eliminated, saving a lot of time and materials. Because the beads themselves can be properly treated to remove and treat phenolic substances, which can be recycled. Therefore, ion exchange beads may make olive processing cleaner, faster and cheaper.

SEPLITE ® Weak Base Anion Exchange Resin

The Weak Base Anion Exchange Resin with primary, secondary, tertiary amine or mixed amine group as active functional groups show different strengths of alkalinity. Most weak Base Anion Exchange Resins with mixed amine group equiped a extremely high operating capacity with the ability to remove both strong and weak acids from solution.

There are two kinds of weak base anion exchange resins, Gel type and Macroporous type, which have acrylic backbone, styrene backbone or mixed backbone. Weak base anion exchange resins are more chemically stable and higher resistant to organic fouling than strong base anions.

The weak base anion exchange resin is easier to regenerate than the strong base resin, and can be efficiently regenerated with a small amount of sodium hydroxide.

Weak base anion exchange resins are commonly used in pharmaceutical, food engineering, and chemical engineering, such as the removal of mineral acid, organic acids and other organic materials, especially for removal of high molecular weight organic matters from aqueous solutions under low pH condition.

Typical Applications For Weak Base Anion Resin

Removal of mineral acid

Removal of organic matter

Pure water preparation

Wastewater treatment

Approvals

Kosher Certificate

Halal Certificate

FDA registeration

WQA Gold Seal Certificate

REACH

Category List

SEPLITE MA938 Macroporous type, Acrylic, Free base, organic acid removal

SEPLITE WA667 Gel type, Acrylic, Free base, decoloration of citric acid, sugar and antibiotics

SEPLITE MA940 Macroporous type, Styrene, Free base

SEPLITE MA921 Macroporous type, Styrene, Free base, floating bed

SEPLITE MA939 Macroporous type,Acrylic, Free base, organic acid removal

Separation Technique Based on Ion Exchange & Adsorption

Stevioside extraction and purification is mainly extracted from the roots and leaves of stevia leaves, with the highest content of stevioside in leaves. Its sweet taste mainly consists of stevioside A, B, C, D, E. Stevioside can be extracted with water, and after clarification and crystallization, extracts of different purities can be obtained.

Stevioside is 250-450 times sweeter than sucrose, but because of the presence of stevioside A, it has a distinct bitter taste and astringency.

Our technology in stevioside extraction is based on the principle of ion exchange and adsorption, using a series supporting separation system to achieve extraction, decolorization, demineralization, purification and other important steps. Our technology has achieved great success in China.

Sunresin has conducted in-depth research in the field of stevia refining. Sunresin once hosted the China Stevia Industry Technical Exchange Conference and achieved great success. China's stevia manufacturers like to work with Sunresin and continue to accelerate their industry upgrades through Sunresin's technology.

Our Technology Advantages

Special ion exchange resins and adsorbents

Complete solution from extraction to purification

Supporting Equipment & system

Successful EPC project service

Typical Application

Stevioside extraction

Decolorization

Demineralization

Deproteinization

Purification

Removal of heavy metal

Separation of stevioside A

Category List

SEPLITE LXA860 SERIES

Extraction,separation & purification in stevia sugar industry.

SEPLITE ® Strong Base Anion Exchange Resin

The Strong Base Anion Exchange Resin (sba resin) is the type of ion exchange resin with functional group of quaternary ammonium, which is strongly alkaline and dissociates just like NaOH and KOH.

In chemical structure, there are two types of strong base anion exchange resin with different alkalinity strengths, Type Ⅰ with a trimethyl ammonium group, Type Ⅱ with a dimethylethanol ammonium group. Type Ⅰ shows a higher alkaline than Type Ⅱ. Compared with type 1 strong base anion, this resin is more suitable for applications needing good rinsing performance and excellent regeneration efficiency.

The strong base anion  shows an excellent physical and chemical stability, which is capable of exchanging the different anion under a wide range of pH.

The Strong Base Anion Exchange Resin is mainly used in water treatment, to produce high purity demineralized water, making use of the ability to adsorb anions strongly.

Typical Applications For Strong Base Anion Exchange Resins

Sugar purification

Antibiotics purification

Organic removal

Industrial demineralization

Silica removal

Pure water preparation

Metal extraction

Condensate deionization

Approvals

Kosher Certificate

Halal Certificate

FDA registeration

WQA Gold Seal Certificate

REACH

Category List

SEPLITE SA400 Gel Type I,Strong base, Styrene Cl- Form

SEPLITE SA470 Gel Type I,Strong base, Styrene Cl- Form

SEPLITE SA471 Gel Type I,Strong base, Styrene Cl- Form

SEPLITE SA473 Gel Type I,Strong base, Styrene Cl- Form

SEPLITE SA458 Gel Type I,Strong base, Acrylic. Cl- Form

SEPLITE MA900 Macroporous Type I,Strong base, Styrene Cl- Form

SEPLITE MA901 Macroporous Type I,Strong base, Styrene Cl- Form

SEPLITE MA903 Macroporous Type I,Strong base, Styrene Cl- Form

SEPLITE MA915 Macroporous Type I,Strong base, Styrene, Cl- Form, fine mesh

SEPLITE MA958 Macroporous Type I,Strong base, Acrylic Cl- Form

SEPLITE MA970 Macroporous Type I,Strong base, Styrene Cl- Form

SEPLITE SA420 Gel Type II,Strong base, Styrene, Cl- Form

SEPLITE MA920 Macroporous Type II, Strong base, Styrene,Cl- Form

Sunresin is one of the most professional anion exchange resin suppliers in China. Just contact us!

SEPLITE ® Strong Acid Cation Exchange Resin

The strongly acidic ion exchange resin is the type of ion exchange resin with functional group of sulfonic acid

The Strong Acid Cation Exchange Resins have two types, the gel and the macroporous type. The macroporous strong acid cation exchange resin shows an excellent dynamic characteristics. The gel type has excellent properties for industrial water softening and demineralization application. It has standard crosslinkage, which is usually used in mixed bed; the higher crosslinkage resin shows a longer operating life, and used in regenerable mixed bed.

The Strong Acid Cation Exchange Resin shows an excellent physical and chemical stability, which operates at any pH(0-14), and are relatively stable to temperture, even in high temperatures of 100-120℃.

The Strong Acid Cation Exchange Resin is applied in a wide variety of fields including water purification, water softening, waste water treatment, purification of pharmaceuticals and food, chemistry,and catalysis.

Typical Applications For Strong Acid Cation Exchange Resins

Industrial water softening

Industry water demineralization

Potable water

Metal recovery

Sugar deashing

Approvals

Kosher Certificate

Halal Certificate

FDA registeration

WQA Gold Seal Certificate

REACH

Category List

SEPLITE SC110 Gel type,Strong Acid, ST-DVB, Na+ Form

SEPLITE SC120 Gel type,Strong Acid, ST-DVB, Na+ Form

SEPLITE SC130 Gel type,Strong Acid, ST-DVB, Na+ Form

SEPLITE SC140 Gel type,Strong Acid, ST-DVB, Na+ Form

SEPLITE SC130H Gel type,Strong Acid, ST-DVB, H+ Form

SEPLITE SC139 Gel type,Strong Acid, ST-DVB, Na+ Form, with higher capacity.

SEPLITE SC124 Gel type,Strong Acid, ST-DVB, Na+ Form, in black color.

SEPLITE SC134 Gel type,Strong Acid, ST-DVB, Na+ Form, in black color, high capacity.

SEPLITE SC126 Gel type,Strong Acid, ST-DVB, Na+ Form,fine mesh, high capacity

SEPLITE SC136 Gel type,Strong Acid, ST-DVB, Na+ Form, fine mesh, high capacity

SEPLITE SC130 LD Gel type,Strong Acid, ST-DVB, Na+ Form, high capacity,low DCE(≤50ppb)

SEPLITE SC127 Gel type,Strong Acid, ST-DVB, Na+ Form, high capacity,resistance to oxidation

SEPLITE SC137 Gel type,Strong Acid, ST-DVB, Na+ Form, high capacity,resistance to oxidation

SEPLITE SC130D Gel type,Strong Acid, ST-DVB, H+ Form, Indicator resin,

SEPLITE SC133 Gel type,Strong Acid, ST-DVB, Na+ Form,mixed bed grade

SEPLITE MC240 Macroporous type, Strong Acid, ST-DVB,Na+ Form

SEPLITE MC240H Macroporous type, Strong Acid, ST-DVB,H+ Form

SEPLITE MC241 Macroporous type, Strong Acid, ST-DVB,Na+ Form

SEPLITE MC243 Macroporous type, Strong Acid, ST-DVB,Na+ Form

SEPLITE MC220 Macroporous type, Strong Acid, ST-DVB, Na+ Form,High selectivity for acidic organics

4-(2', 4'-Dimethoxyphenyl-Fmoc-aminomethyl)-phenoxymethyl resin

Amide rink resin is an excellent support for the Fmoc SPPS of peptide amides. This resin is more acid sensitive than Rink Amide-AM and Rink Amide-MBHA resins. Cleavage with high concentrations of TFA can lead to the breakdown of the linker, with the concomitant formation of by-products that can not be removed by simple washes. These problems appear to be minimized through the use of low TFA concentrations or by the addition of trialkylsilanes to the cleavage mixture.

4-(2',4'-Dimethoxyphenyl-Fmoc-aminomethyl)-phenoxyacetamido-AM resin

This rink amide am resin attached to aminomethyl resin, and is an ideal tool for the Fmoc SPPS of peptide amides. Cleavage from this resin can be effected by single step treatment with 95% TFA, providing peptide amides in high yields and purities.

Periodic table resin

Lanthanides

The lanthanide series of chemical elements comprises the fifteen metallic chemical elements withatomic numbers 57 through 71, from lanthanum through lutetium . These fifteen lanthanide elements, along with the chemically similar elements scandium and yttrium, are often collectively known as the rare earth elements.

Actinides

The actinide series encompasses the 15 metallic chemical elements with atomic numbers  from 89 to 103, actinium through lawrencium.The actinide series derives its name from the first element in the series, actinium.They all have very large atomic andionic radii and exhibit an unusually large range of physical properties. While actinium and the late actinides (from americium onwards) behave similarly to the lanthanides, the elements thorium through neptunium are much more similar to transition metals in their chemistry.

4-Hydroxymethyl-phenylacetamidomethyl resin

PAM resin has become the most widely used resin in Boc chemistry peptide synthesis. It has greater acid stability than Merrifield resin, making it suitable for synthesizing medium and large peptides, such as DNA binding polyamines, human matrix Gla protein(MGP), Kappa-casein. The first carboxylic acid is attached to PAM resin using an activating agent such as DCC and DMAP. These conditions can lead to partial epimerization of the amino acids, so HOBt is normally added to reduce racemization.

SEPLITE ® Weak Base Anion Resin

The Weak Base Anion Exchange Resin with primary, secondary, tertiary amine or mixed amine group as active functional groups show different strengths of alkalinity. Most weak Base Anion Exchange Resins with mixed amine group equiped a extremely high operating capacity with the ability to remove both strong and weak acids from solution.

There are two kinds of weak base anion exchange resins, Gel type and Macroporous type, which have acrylic backbone, styrene backbone or mixed backbone. Weak base anion exchange resins are more chemically stable and higher resistant to organic fouling than strong base anions.

The weak base anion exchange resin is easier to regenerate than the strong base resin, and can be efficiently regenerated with a small amount of sodium hydroxide.

Weak base anion exchange resins are commonly used in pharmaceutical, food engineering, and chemical engineering, such as the removal of mineral acid, organic acids and other organic materials, especially for removal of high molecular weight organic matters from aqueous solutions under low pH condition.

Typical Applications For Weak Base Anion Exchange Resin

Removal of mineral acid

Removal of organic matter

Pure water preparation

Wastewater treatment

Approvals

Kosher Certificate

Halal Certificate

FDA registeration

WQA Gold Seal Certificate

REACH

Category List

SEPLITE MA938 Macroporous type, Acrylic, Free base, organic acid removal

SEPLITE WA667 Gel type, Acrylic, Free base, decoloration of citric acid, sugar and antibiotics

SEPLITE MA940 Macroporous type, Styrene, Free base

SEPLITE MA921 Macroporous type, Styrene, Free base, floating bed

SEPLITE MA939 Macroporous type,Acrylic, Free base, organic acid removal

The Fmoc method is a new method for solid phase synthesis of peptides developed by Carpino and Hart based on the Boc method.

The fundamental difference between the Fmoc ltd /t-Bu(9-fluorenylmethoxycarbonyl/tert-butoxy) strategy and the Boc/Bzl strategy is the use of alkali-removable Fmoc is a protecting group for α-amino group, the side chain is protected by t-Bu which can be removed by TFA, and the solid phase carrier Wang resin with acid-sensitive linking arm is used, and the final step of the synthesis is removed by TFA. Han Xiang et al. successfully synthesized the 32-peptide thymosin α 1 by Fm oc solid phase method, starting from Fm oc-Asn(Trt)-W angResin, Boc protecting the side chain amino group of Lys, and tert-butyl ester group (O-t-Bu Protecting the side chain carboxyl group of Asp and Glu, t -Bu protects the side chain hydroxyl group of Ser and Thr, and trityl group (Trt) protects the side chain amide group of Asn, and the total synthesis yield is 33.2%, and the purity is >98.8%.

The Fmoc protected amino acid is sensitive to bases, especially secondary amines, and can be removed with piperidine at room temperature. Under these conditions, Z-based, Boc-based or other amino protecting groups are unaffected.

The Fmoc protecting group is stable to acid and can be removed under mild alkaline conditions. It can be used orthogonally to acid-sensitive side chain protecting groups, and has the advantages of mild reaction conditions, less side reactions, and high yield.

Purification of the product is also facilitated when the polyaryl analog of the Fmoc protecting group is attached to the N-terminus of the polypeptide and protein. At the same time, the Fmoc group has characteristic ultraviolet absorption and is easy to monitor and control the reaction, so it is more and more popular.

Moreover, with the development of the peptide synthesis industry, the cost of Fmoc to protect amino acid raw materials is greatly reduced, and the Fmoc method has gradually replaced the Boc method and is widely used in solid phase synthesis.

SEPLITE ® Strong Acid Cation Exchange Resin

The Strong Acid Cation Exchange Resin( SAC resin) is the type of ion exchange resin with functional group of sulfonic acid

The strongly acidic ion exchange resin has two types, the gel and the macroporous type. The macroporous strong acid cation exchange resin shows an excellent dynamic characteristics. The gel type has excellent properties for industrial water softening and demineralization application. It has standard crosslinkage, which is usually used in mixed bed; the higher crosslinkage resin shows a longer operating life, and used in regenerable mixed bed.

The Strong Acid Cation Exchange Resin shows an excellent physical and chemical stability, which operates at any pH(0-14), and are relatively stable to temperture, even in high temperatures of 100-120℃.

The Strong Acid Cation Exchange Resin is applied in a wide variety of fields including water purification, water softening, waste water treatment, purification of pharmaceuticals and food, chemistry,and catalysis.

Typical Applications For Strong Acid Cation Exchange Resins

Industrial water softening

Industry water demineralization

Potable water

Metal recovery

Sugar deashing

Approvals

Kosher Certificate

Halal Certificate

FDA registeration

WQA Gold Seal Certificate

REACH

Category List

SEPLITE SC110 Gel type,Strong Acid, ST-DVB, Na+ Form

SEPLITE SC120 Gel type,Strong Acid, ST-DVB, Na+ Form

SEPLITE SC130 Gel type,Strong Acid, ST-DVB, Na+ Form

SEPLITE SC140 Gel type,Strong Acid, ST-DVB, Na+ Form

SEPLITE SC130H Gel type,Strong Acid, ST-DVB, H+ Form

SEPLITE SC139 Gel type,Strong Acid, ST-DVB, Na+ Form, with higher capacity.

SEPLITE SC124 Gel type,Strong Acid, ST-DVB, Na+ Form, in black color.

SEPLITE SC134 Gel type,Strong Acid, ST-DVB, Na+ Form, in black color, high capacity.

SEPLITE SC126 Gel type,Strong Acid, ST-DVB, Na+ Form,fine mesh, high capacity

SEPLITE SC136 Gel type,Strong Acid, ST-DVB, Na+ Form, fine mesh, high capacity

SEPLITE SC130 LD Gel type,Strong Acid, ST-DVB, Na+ Form, high capacity,low DCE(≤50ppb)

SEPLITE SC127 Gel type,Strong Acid, ST-DVB, Na+ Form, high capacity,resistance to oxidation

SEPLITE SC137 Gel type,Strong Acid, ST-DVB, Na+ Form, high capacity,resistance to oxidation

SEPLITE SC130D Gel type,Strong Acid, ST-DVB, H+ Form, Indicator resin,

SEPLITE SC133 Gel type,Strong Acid, ST-DVB, Na+ Form,mixed bed grade

SEPLITE MC240 Macroporous type, Strong Acid, ST-DVB,Na+ Form

SEPLITE MC240H Macroporous type, Strong Acid, ST-DVB,H+ Form

SEPLITE MC241 Macroporous type, Strong Acid, ST-DVB,Na+ Form

SEPLITE MC243 Macroporous type, Strong Acid, ST-DVB,Na+ Form

SEPLITE MC220 Macroporous type, Strong Acid, ST-DVB, Na+ Form,High selectivity for acidic organics

Peptide Synthesis Resins

Since Solid Phase Peptide Synthesis(we can also call it spps resins) was first proposed by Robert Bruce Merrifield, the method of synthetic peptides became more popular than liquid phase peptide synthesis because of high efficiency. This method could assemble a peptide chain rapidly through successive reactions of amino acid derivatives on an insoluble support.

The original peptide antibiotics are also biosynthesized and extracted from the culture of polymyxa or aeruginosa. Another synthetic method of peptides is chemical synthesis, which is divided into liquid phase chemical synthesis and solid phase chemical synthesis. The liquid phase method is mainly used for the synthesis of short peptides. The solid phase synthesis method can be used to prepare long-chain peptides, cyclic peptides, and complex. Peptide. The solid phase method is divided into a Boc method and an Fmoc method. It requires the solid phase synthesis of the carrier to achieve the growth of the peptide chain by means of stepwise amino acid condensation. The advantages of solid phase synthesis are ease of purification, shortening of the synthesis cycle, and ease of automation.

Solid phase peptide synthesis(SPPS) support consists of small, polymeric resin beads functionalized with reactive group such as amine or hydroxyl groups, which link to systhesis peptide chain step by step.

Solid phase peptide synthesis(SPPS) resins is insoluble in all common solvents but swells well in most organic solvents. Better swelling degree is benefit for the reaction yields, but for short peptide easy to synthesis, lower swelling degree will be suitable and it will be good at saving solvent.

Solid phase peptide synthesis Resins are rich in variety, complete in specifications and stable in performance.

Typical Applications

Solid phase synthesis of Bivalirudin

Solid phase synthesis of Eptifibatide

Solid phase synthesis of Exenatide

Solid phase synthesis of Liraglutide

Solid phase synthesis of thymopentin

Solid phase synthesis of Thymalfasin

Solid phase synthesis of Buserelin

Solid phase synthesis of Goserelin

Solid phase synthesis of Octreotide

Solid phase synthesis of Calcitonin

Our Customized Service

We also have good experiences in research and develop the amine acid pre-loading peptide resins, and we have extended resin backbone to hydrophilic matrix, such as DEG series, TEG series, PEG series. Welcome to ask for Sunresin!

Category List

Polystyrene   Resin Polystyrene resin bead

Merrifield   Resin Chloromethyl resin

2-Chlorotrityl Chloride Resin 2-CTC Resin

Resin Money 4-Benzyloxybenzy Alcohol resin

Aminomethyl Resin AM resin

MBHA resin 4-methylbenzhydrylamine Hydrochloride Salt Resin

Rink Amide Resin 4-(2', 4'-Dimethoxyphenyl-Fmoc-aminomethyl)-phenoxymethyl resin

Rink Amide-AM Resin 4-(2',4'-Dimethoxyphenyl-Fmoc-aminomethyl)-phenoxyacetamido-AM resin

Rink Amide-MBHA Resin 4-(2',4'-Dimethoxyphenyl-Fmoc-aminomethyl)-phenoxyacetamido-MBHA resin

Sieber Resin 9-Fmoc-Aminoxanthen-3-yloxy-polystyrene resin

PAM Resin 4-Hydroxymethyl-phenylacetamidomethyl resin

Pre-loaded Amine Acid Resins Boc- or Fmoc- AA-resins

4-(2',4'-Dimethoxyphenyl-Fmoc-aminomethyl)-phenoxyacetamido-rink amide AM resin

This am resin comprises the modified Rink amide linker attached to aminomethyl resin, and is an ideal tool for the Fmoc SPPS of peptide amides. Cleavage from this resin can be effected by single step treatment with 95% TFA, providing peptide amides in high yields and purities.

Category List

Prepacked Column

Directly for lab or industrial usage

Sunresin is one of the most ion exchange column suppliers in China. Please feel free to contact us if you have any further inquiry.

Periodic Table Resin

Lanthanides

The lanthanide series of chemical elements comprises the fifteen metallic chemical elements withatomic numbers 57 through 71, from lanthanum through lutetium . These fifteen lanthanide elements, along with the chemically similar elements scandium and yttrium, are often collectively known as the rare earth elements.

Actinides

The actinide series encompasses the 15 metallic chemical elements with atomic numbers  from 89 to 103, actinium through lawrencium.The actinide series derives its name from the first element in the series, actinium.They all have very large atomic andionic radii and exhibit an unusually large range of physical properties. While actinium and the late actinides (from americium onwards) behave similarly to the lanthanides, the elements thorium through neptunium are much more similar to transition metals in their chemistry.

We classified the paraffin wax with a melting point of 56 to 62 ℃ medium melting point paraffin wax. By oil content and the degree of refinement,  the crude versions fall into the slack wax category and contain oil content of 3% to 15%. After de-oiling, desulfurization and hydrogenation refining to remove impurities and discoloration, the oil content can 0.5%-2%. We normally separate them by semi refined paraffin wax and fully reply paraffin wax. Fully refined is the highest refinement, the oil content below 0.5% (for some high melt paraffin wax, the oil content may be below 0.75%). Semi refined paraffin waxes contain between 0.5 and 1.5% oil. Below we give you the product in this category together with their preference usage. If you didn't find the grade in below list, please send us inquiry.

We supply a variety of packaging formats. These include bulk liquid (via tank truck or railcar), slabs (10 lbs), free-flowing granules (packaged in bags), and free-flowing pastilles (packaged in bags).

Fully Refined Paraffin Wax

Semi Refined Paraffin Wax & Slack Wax

Storage

Please store products in a cool, dry location, away from sources of intense heat, incompatible materials, water, heat, and flame.

Long-distance transportation or hot atmosphere may have cracked, that does not affect the quality of products.

If you are wondering about how to melt paraffin wax,don’t hesitate to contact.