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DETAILS
resin epoxy is created by mixing two resins together to create a highly durable product that can be used in a wide range of industrial applications, such as for protective wall and floor systems. Epoxy resin has strong adhesive qualities, which makes it a very versatile product for a number of industries. Its resistance to chemical and heat applications make it an ideal tool for anything that needs to have a strong hold under pressure. Its durability allows it to be used with a variety of materials, such as glass, metal, wood, china, and fabric. Along with industrial practices, it is also used commonly by woodworkers, artists and home hobbyists on everything from dining tables to coasters.
Epoxy resins have secondary hydroxyl groups and epoxy groups, and the secondary hydroxyl groups can react with isocyanates. Epoxy resin is directly added to the hydroxyl group-containing component of the polyurethane adhesive as a polyol. Using this method, only the hydroxyl group participates in the reaction, and the epoxy group fails to react.
Use the carboxyl group of the acid resin to open the epoxy ring, and then react with the isocyanate in the polyurethane adhesive. It is also possible to dissolve the epoxy resin in ethyl acetate, add phosphoric acid to heat the reaction, and add its adduct to the polyurethane adhesive to improve the initial adhesion, heat resistance and hydrolysis stability of the adhesive. Alcohol amines or amines can also be used to react to form polyols, and the presence of tertiary nitrogen atoms in the adducts can accelerate the NCO reaction.
Using epoxy resin as the polyol component combines the advantages of polyurethane and epoxy resin, and has good bonding strength and chemical resistance. The epoxy resin used in the manufacture of polyurethane adhesives generally uses EP-12 and EP-13 , EP-16 and EP-20 and other varieties.
Dosage
Add and use according to the user's formula.
Storage
This product has stable performance in long-term indoor storage at 5℃-35℃.
Package product
Packed in 25kg plastic drum.
1. Various forms.
2. Convenient curing. Choose a variety of different curing agents, epoxy resin system can be cured almost in the temperature range of 0 ~ 180 ℃.
3. Strong adhesion. The existence of polar hydroxyl groups and ether bonds inherent in the epoxy resin molecular chain makes it have high adhesion to various substances. The low shrinkage of epoxy resin when curing and the low internal stress generated also help to improve the adhesion strength.
4. Low shrinkage.
5. Mechanical properties. After curing, the epoxy resin system has excellent mechanical properties.
6. Electrical properties.
7. Chemical stability.
8. Dimensional stability.
9．Mold resistance.
Classification details
Type classification
According to the molecular structure, epoxy resins can be broadly classified into five categories:
1. Glycidyl ether epoxy resin
2. Glycidyl ester epoxy resins
3. Glycidyl amine epoxy resins
4. Linear aliphatic epoxy resins
5. alicyclic epoxy resins
User's Guide
Basic Introduction
Epoxy resins and epoxy adhesives are non-toxic in themselves, but many epoxy resins are "toxic" because solvents and other toxic substances are added during the preparation process, and the domestic epoxy resin industry is trying to keep epoxy resins "non-toxic" through water-based modification and avoiding adding. The domestic epoxy resin industry is trying to keep the epoxy resin "non-toxic" by water-based modification and avoiding additive. Epoxy resins are generally used together with additives to obtain application value. Additives can be selected according to different uses, and the common additives are as follows: (1) curing agent; (2) modifier; (3) filler; (4) diluent; (5) others. Among them, the curing agent is an essential additive, whether for bonding agent, coating, casting material are required to add curing agent, otherwise the epoxy resin can not be cured. Because of different performance requirements, there are different requirements for epoxy resin and curing agent, modifier, filler, diluent and other additives.
Operation requirements
Selection of curing agent
1. Curing agent type:
Epoxy resin raw material
2、The amount of curing agent
(1) amines for crosslinking agent according to the following formula:
Amine dosage = MG/Hn, where: M = molecular weight of amine; Hn = number of active hydrogen; G = epoxy value (epoxy equivalent per 100 grams of epoxy resin)
(2) Calculated by the following formula when using anhydride:
The amount of anhydride = MG (0.6~1)/100 where: M = molecular weight of anhydride; G = epoxy value (0.6~1) is the experimental coefficient
3. Principle of choosing curing agent: The curing agent has a great influence on the performance of epoxy resin, and is generally chosen according to the following points.
(1) Choose from the safety: generally require a small toxicity is good, to facilitate safe production.
(2) Choose from the cost.
Selection of modifier
(1) polysulfide rubber: can improve the impact strength and peel resistance.
(2) polyamide resin: can improve the brittleness, improve the bonding ability.
(3) polyvinyl butyral: improve impact tanning resistance.
(4) Nitrile rubber: improve impact tanning resistance.
(5) phenolic resins: can improve the temperature and corrosion resistance.
(6) Polyester resins: improve impact tannin resistance.
(7) Urea-formaldehyde melamine resin: increase chemical resistance and strength.
(8) furfural resin: improve static bending performance, improve acid resistance.
(9) Vinyl resin: improve peel resistance and impact strength.
(10) Isocyanate: reduce moisture permeability and increase water resistance.
(11) Silicone resin: improve heat resistance.
COMPANY PROFILE
Shandong Zhongfuji New Material Co., Ltd. is located in Jinan, capital of Shandong Province. Jinan is connected with the capital economic circle to the north and the Yangtze River Delta Economic Circle to the south. East and west connect Shandong Peninsula and central China. Shandong Zhongfuji New Material Co., Ltd. is a chemical trading company specializing in the integration of production, processing and international sales. The company introduced advanced scientific and technological achievements at home and abroad, with domestic and foreign well-known manufacturers of superior products. Its basic functions are: 1. Domestic trade of all kinds of chemical raw materials; 2. Price Information Service and chemical raw materials procurement for industrial companies. At present, the company is trade-based, industrial-based, global procurement, global sales, domestic and foreign trade integration, upstream and downstream integration, global traders with integrated value-added capabilities and compound competitiveness made steady progress.
Our main products are: agricultural chemicals series, polymer series, organic raw materials series, coatings and paint series, pharmaceutical and biochemical industry, organic solvents and additives series, plastics and products series, food and feed additives series, nylon chips, calcium chloride, octanol, water reducer, hydroxyethyl methacrylate, hydroxyethyl methacrylate, hydroxyethyl methacrylate and more than 800 varieties, etc. , at the same time operating domestic and foreign well-known chemical products, including basic chemical raw materials, Surfactant and more than 300 varieties; Customers have been all over Southeast Asia, the Middle East, Europe, , Australia and in cooperation with these companies to form a long-term good strategic relations.
Shandong Zhongfuji New Material Co., Ltd. Based on the principle of “Customer first, quality first”, we provide our customers with excellent service and high-quality products, and has a very high market share, products sold in all regions of the world. "Science and technology first, quality-oriented, customer first, honesty and trustworthiness" is Fji's corporate philosophy. The company has always been to customer demand as the direction of our efforts, and constantly strive to work hard, constantly open up, to the Green, environmental protection, high-tech goals. The company is willing to sincerely serve you, embrace the heart of gratitude to further serve the old rain new knowledge, innovative research and development, the introduction of more innovative and advanced products, more powerful application of Technology Services World Enterprises, join hands to build a bright future.
SERVICE
1. Purity, Package, Mark, thiry party test (SGS,BV,Intertek,CIQ)
2. Sample order are acceptable
3. reply you for your inquiry asap within 12 hours
4. Cargoes photo before and after loading into container will be sent to you by email
5. Guaranteed delivery time
6. Full experience in this field
7. Good cooperation with cargo agents and shipping companies
8. professional sales and engineers will solve the problem you concern
FAQ
Q: Are you a factory or trading company?
A: Yes,we are factory, but not only factory, we also have sales team, own designers, own showroom, can help buyers to decide which products are their suitable choice, and all your inquiry will be replyed within 24 hours.
Q: Could you send me all your catalogues and price list?
A: As we have more than thousands of items, even 1 item have different size and package, it is really hard to send you all our catalogue and price list for you. Please inform me the items, size and packages you are interested in, so we can offer you the price list you need for your reference .
Q: Can I get some samples for testing?
A: we are honored to provide samples, the shipping cost should be paid by customers at first. And it will be returned to you in our first time cooperation.
Q; How does your factory do regarding quality control?
A: Our factory has passed ISO9001 2008, REACH, FAMIQS Certificate.
Q: What's your Delivery Time?
A: In generally, the delivery time is 5 days-15 days after receiving payment. For large quantity it will be checked with
production dept. We will make the delivery as soon as possible with the guaranted quality.
Q: What is payment terms?
A: L/C, T/T, Western Union are all accepted, and if you have better idea, please feel free to share with us.
Q: Which documents can you supply?
A: We usually provide our customers with Commercial Invoice, Price List, Packing List, COA, Origin Certificate, Quality/Quantity Certificate, Beneficary's Certificate, MSDS, B/L and others as your request.
If you have any questions, we will sincerely answer for you!
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