What is Epoxy Material? Introduction to its role

As a high-performance, high-value-added adhesive, epoxy resin adhesive is highly valued by the industry, but at the same time, counterfeit and shoddy products are often patronized. Therefore, we can identify it by the following chemical methods. Method 1:

The sample is dissolved in sulfuric acid, and then concentrated nitric acid is added, and a large amount of sodium hydroxide solution is poured into it. The second type: drop 5 drops of concentrated nitric acid on the resin adhesive film, move the reactant into the test tube after a few minutes, add 6ml of acetone and then add potassium hydroxide ethanol solution to make it alkaline, if it turns from red to purple, it indicates that it contains epoxy resin glue containing bisphenol A type, this method is also intuitive; Method 3:

Take the adhesive film or glue solution, p-phenylenediamine and 8ml of sample water, boil for 8min, if it is epoxy resin, the solution is peach....

Epoxy resin is a polymer. Epoxy resin is a general term for a class of polymers that contain more than two epoxy groups in their molecule. Epoxy resins have both secondary hydroxyl and epoxy groups, and the secondary hydroxyl group can react with isocyanates.

Due to the chemical activity of the epoxy group, it can be used to open the ring with a variety of compounds containing active hydrogen, solidify and cross-link to form a network structure, so it is a thermosetting resin.

Epoxy resins have excellent physical, mechanical, and electrical insulating properties, adhesion properties to a wide range of materials, and flexibility in their use processes that are not available in other thermosetting plastics. Therefore, it can be made into coatings, composite materials, casting materials, adhesives, molding materials and injection molding materials, and has been widely used in various fields of the national economy.

Epoxy resin accounts for a large proportion of the application in coatings, and it can be made into varieties with different characteristics and different uses. Its commonalities are: excellent chemical resistance, especially alkali resistance; Strong adhesion to the paint film, especially to metals; It has good heat resistance and electrical insulation.

In addition to the poor adhesion to non-polar plastics such as polyolefins, epoxy resin is also good for various metal materials such as aluminum, iron, copper; Non-metallic materials such as glass, wood, concrete, etc.; As well as thermosetting plastics such as phenolic, amino, unsaturated polyester, etc., all have excellent adhesive properties, so they are known as all-purpose glue.

Introduction: Paint is not uncommon in the home improvement market, and it is also a wall decoration material that we most often use when decorating our houses. Painting a layer of paint on the wall of the room can make the wall look more beautiful and generous, and different kinds of paint can make the wall show different styles, indirectly shaping different kinds of room styles.

Epoxy paint is a very environmentally friendly paint and is very popular with everyone. The following is a detailed introduction to the uses and advantages and disadvantages of epoxy coatings.

What is epoxy paint

Epoxy paint is a kind of industrial floor coating that develops very rapidly, and its composition contains more epoxy genes. According to the composition of its epoxy gene, epoxy paint can be mainly divided into two-component epoxy paint and three-component epoxy paint, but the raw materials are epoxy resin and curing agent.

Advantages of epoxy coatings:

1. The epoxy coating itself has strong corrosion resistance, wear resistance, impact resistance, and excellent mechanical properties;

2. Epoxy coating is also resistant to organic solvents, heat, water, and non-toxic;

3. Epoxy coatings can be made into solvent-free or high-solids coatings, and have strong adhesion to inorganic materials such as cement and metal.

Disadvantages of epoxy coatings:

1. The weather resistance is not good, and there is a possibility of chalking after being exposed to sunlight for a long time;

2. The construction environment of epoxy coating is high, the curing of the coating film is slow at low temperature, many varieties need to be cured at high temperature, and the equipment input cost is high;

3. The decoration is poor, the luster is fleeting and not easy to maintain, so it is generally not used for home decoration.

Epoxy coating uses

Because epoxy paint has the characteristics of anti-slip and wear-resistant, it is suitable for all kinds of parking lots, ramps and other requirements of anti-slip, clean and wear-resistant flooring; Because epoxy paint itself does not contain toxic gases, it is widely used in food and beverage factories, canteens and other types of oil stains and stains, which require non-slip flooring.

Because epoxy paint also has anti-static and other effects, it is widely used in various electronic factories, electrical factories, computer rooms, textile factories, operating rooms, offices and other places that need anti-static flooring, but because epoxy paint can not be exposed to sunlight for a long time.

Conclusion: Through the above introduction, I believe you have a certain understanding of the use, advantages and disadvantages of epoxy coatings! Epoxy paint is a very high-quality paint that not only makes the wall look more shiny, but also has no effect on the air in the room.

It is recommended that when choosing epoxy coatings, you should fully consider the advantages and disadvantages of epoxy coatings, and choose whether to buy epoxy coatings in combination with your own needs. I hope that through the above introduction, we can help you understand the uses and advantages and disadvantages of epoxy coatings.

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