An organic adhesive that writes about six common adhesives

Acrylic glue (plexiglass glue).

It is prepared by polymethyl methacrylate (plexiglass) dissolved in chloroform (chloroform), acetone, toluene and other organic solvents. It is used for gluing plexiglass products, celluloid products, etc. It is resistant to acid, alkali, water and oil at room temperature.

Acrylic adhesive can be diluted with solvent and applied to nitro paint to prevent the erosion of methanol in hot engine oils.

Polyvinyl acetate emulsion (commonly known as white latex).

It can be used to bond wood, fiber, leather, paper, styrofoam, glass, ceramics, etc. It is an ideal adhesive for making paper models, and it can also achieve good strength by gluing wood. In use, if the glue is too thick, you can add water to dilute it.

This glue is soft, heavy, and not waterproof, so it is not suitable for making ship models for launching and sailing. White latex is afraid of freezing, so it should be stored at room temperature.

Cyclohydroresin amine.

It is a combination of epoxy resin, curing agent, plasticizer, filler, etc. According to the different use cases, select the appropriate ratio, you can make a variety of epoxy adhesives with different uses. Due to the polar aliphatic hydroxyl group, ether bond and active epoxy group in the molecular structure of epoxy resin, it has high adhesion to polar materials.

The process operation of epoxy resin glue is relatively simple, the shrinkage rate is low during hardening, it has good physical, chemical and dielectric properties, waterproof and chemical erosion resistance, and has high mechanical strength, which can be used to glue most metal and non-metallic materials, so it is widely used in the gluing process of various models. In particular, the shells of FRP empty molds, ship models, and car models pasted with glass fiber cloth, carbon fiber and epoxy resin glue can produce models with accurate line shape and high strength.

Polyurethane adhesives.

It is a two-component glue composed of polyester, polyether and other polyhydroxyl compounds and polyisocyanates. Polyurethane adhesives can bond metals, wood, plastics, rubber, fabrics, paper, leather, and more. It has a certain shear strength and peel strength, especially suitable for the bonding of metal foils, so it is widely used in the aluminum foil skin process.

Polyurethane glue has good oil resistance, but the resistance to acid, alkali and damp heat aging is poor, and it is high.

It is dissolved in chloroform by polymethyl methacrylate (plexiglass).

Write out six common adhesive pros! Hello, I am glad to answer for you<> pro 1, polyvinyl alcohol glue, commonly known as putty glue, is used to adjust putty powder to scrape the wall, and is also used to mix into the cement to brush the wall. 2. White latex is mainly used to bond wood rent-resistant and wood.

3. Polyurethane waterproof adhesive epoxy acacia resin waterproof adhesive acrylic emulsion waterproof mortar, which is mainly used for ground, wall and roof waterproofing. 4. Dry-hanging glue is mainly used for dry-hanging stone and ceramic tiles. 5. Silicone sealant is mainly used for the bonding and elastic sealing of door frames, window frames and other parts.

6. Polyurethane styrofoam is mainly used to seal and fill various large gaps and holes. 7. In addition, there are tile adhesives, beauty joints, crack treasures, etc., which are not listed one by one. Hope mine can help you <>

Do you have any other questions?

Acrylic acid, polyurethane, annular tank cavity oxygen, organic silicon inorganic binder, high bonding strength, can be used for large sand core combination bonding, hanging core, sealing, etc. It has good performance in high trap and sliding temperature, and can be used for bonding or repairing ceramic casting systems, gates and other high-temperature resistant parts. Easy to use and economical.

This product is packaged in plastic spout flexible packaging and can be operated with one hand.

Adhesives are one of the most important auxiliary materials and are used in a wide range of packaging applications. An adhesive is a cohesive substance that joins two separate materials together with the help of its adhesive properties. There are many types of adhesives, which can usually be classified as follows:

According to the material**.

Natural binders. It is taken from substances found in nature. Including starch, protein, dextrin, animal glue, shellac, leather glue, rosin and other biological adhesives; Mineral binders such as bitumen are also included.

Artificial adhesives. This is made by hand. Substances, including inorganic adhesives such as sodium silicate, as well as organic adhesives such as synthetic resins and synthetic rubber.

According to the characteristics of use.

Water-soluble adhesives. Binders used as solvents with water mainly include starch, dextrin, polyvinyl alcohol, carboxymethyl cellulose, etc.

Hot-melt adhesives. It is a solid adhesive that is used after melting the adhesive by heating. General thermoplastic resins can be used, such as polyurethane, polystyrene chingene, polyacrylate, ethylene-vinyl acetate copolymer, etc.

Solvent-based adhesives. A binder that is insoluble in water but in a solvent. Such as shellac, butyl rubber, etc.

Emulsion-type adhesives. It is mostly suspended in water, such as vinyl acetate resin, acrylic resin, chlorinated rubber, etc.

Solvent-free liquid adhesives. At room temperature, it is a viscous liquid, such as epoxy resin.

According to the packaging material.

Adhesives for paper-based materials. It mainly includes starch paste, dextrin, water glass, chemical paste, casein, etc.

Plastic adhesives. It mainly includes solvent-based adhesives such as styrene-butadiene rubber, polyurethane, nitrocellulose, polyvinyl acetate, etc.; Ethylene-vinyl acetate copolymer, ethylene-acrylic acid copolymer and other water-soluble adhesives; vinyl acetate resin, acrylic resin and other emulsion-type adhesives; Hot-melt adhesives composed of thermoplastic resins such as polystyrene, polyurethane, and polyacrylate.

Wood adhesives. It mainly includes bone glue, leather glue, glue, casein, blood glue and other animal glue; It also includes synthetic resin glue such as phenolic resin glue, polyvinyl acetate resin glue, urea-formaldehyde resin glue, etc.; It also includes vegetable gums such as bean gum.

Inorganic resin adhesive is a commonly used building material, which is mainly used for bonding, paving and fixing building materials such as floors, walls, ceilings, decorative plates, hard floors and other materials in the field of building decoration. Its cherry tree height functions are mainly as follows:

1.Bonding: Inorganic resin adhesives can effectively bond joints between different materials, so they are widely used in the field of architectural decoration.

2.Filling: Inorganic spine grease adhesives can also fill uneven surfaces or walls, making surfaces such as walls smoother.

3.Stability: The use of inorganic resin adhesives can make the bond between building materials more stable and prevent cracking and falling off of the paved materials.

4.Moisture-proof and waterproof: The moisture-proof and waterproof properties of inorganic resin adhesives are very good, which can effectively prevent the deformation of building materials in a humid environment and prevent the erosion of building materials by moisture.

In short, inorganic resin adhesives play a great role in the field of building decoration, which can improve the decoration effect, enhance the decoration quality, and can extend the service life of building materials.

Synthetic adhesives.

Synthetic adhesives are composed of a main agent and an additive, and the main agent is also known as the main material, base material or sticky material; Additives include curing agents, diluents, plasticizers, fillers, coupling agents, initiators, thickeners, antioxidants, polymerization inhibitors, stabilizers, complexing agents, emulsifiers, etc., and can also include flame retardants, foaming agents, defoamers, colorants and antifungal agents according to requirements and uses.

Main agent. The main agent is the main component of the adhesive, which dominates the adhesive bonding and submersion performance, and is also an important symbol to distinguish the adhesive category.

The main agent is generally composed of one or two, or even three polymers, which requires good adhesion and wettability.

Substances that can be used as stickers are:

1.Natural polymers, such as starch, cellulose, tannins, *gum and sodium alginate and other plant stickers, as well as bone glue, fish gelatin, blood protein gelatin, casein and shellac and other animal stickers.

2.Synthetic resins are divided into two categories: thermosetting resins and thermoplastic resins.

Thermosetting such as cycloming potato oxygen, phenolic, unsaturated polyester, polyurethane, silicone, polyimide, bismaleimide, allyl resin, furan resin, amino resin, alkyd resin, etc.; Thermoplastic resins such as polyethylene, polypropylene, polyvinyl chloride, polystyrene, acrylic resin, nylon, polycarbonate, polyoxymethylene, thermoplastic polyester, polyphenylene ether, fluororesin, polyphenylene sulfide, polysulfone, polyketone, polyphenylene ester, liquid crystal polymer, etc., as well as their modified resins or polymer alloys.

It is the most used type of adhesive.

3.Rubber and elastomers.

Rubber mainly includes neoprene, butyl nitrile ethylene propylene rubber, fluorine rubber, polyisobutylene, polysulfide rubber, natural rubber, chlorosulfonated polyethylene rubber, etc.; Elastomers are mainly thermoplastic elastomers and polyurethane elastomers.

4.In addition, there are inorganic adhesives such as silicates, phosphates, and phosphoric acid-copper oxides.

Additives. In order to meet the specific physical and chemical properties, various auxiliary components added are called additives, such as: in order to form a network or body structure of the main adhesive and increase the cohesive strength of the adhesive line, the curing agent is added (they react with the main adhesive and produce cross-linking); In order to accelerate curing and reduce the reaction temperature, a curing accelerator or catalyst is added; In order to improve the performance of atmospheric aging, thermal aging, arc aging, ozone aging, etc., antioxidants are added; Fillers are added in order to impart certain properties to the adhesive and reduce costs; In order to reduce the rigidity of the adhesive line and increase the toughness, the toughening agent is added; In order to improve the processability, reduce the viscosity and prolong the service life, add diluent, etc.

1.Curing agent.

2.Solvent. 3.Plasticizer.

4.Fillers.

5.Tougheners.

6.Coupling agent.

7.Other additives: initiators, accelerators, tackifiers, polymerization inhibitors, stabilizers, antioxidants, complexing agents, emulsifiers.

The range of organic adhesives is relatively wide, there are many varieties of organic silicone, modified glue, epoxy resin glue, potting glue, etc., and the use is also very wide, I don't know which one you need, if you need it, you can contact Baoli Technology, they have more varieties, and the product quality is also good!

Adhesive is a special substance used to make the surface of two objects combine, usually we call it adhesive, adhesive. Adhesives are widely used and are indispensable in fields such as learning, construction, and medicine. Many people know that there are many varieties of adhesives, and their adhesion, physical properties and other properties are different between different varieties, but adhesives are mixtures, so what are the substances composed of adhesives?

Base

The binder is the most important component of the binder, also known as the main agent or adhesive, and most of the components that make up the binder are some organic compounds, such as silicate, phosphate, etc. In addition, there are natural polymer materials, such as starch, natural rubber, protein, etc. In addition, there are synthetic polymer materials, including synthetic resins and synthetic rubber.

In order to obtain good properties, these ingredients are mixed in a certain way and in proportion according to scientific research, and then the best properties are obtained.

Curing agents and accelerators

Curing agent is the most important component of adhesive ingredients, also known as hardener, its function is to make the molecular compounds in the adhesive form a network structure, strengthen the strength of the skin, and can make the base material into a non-meltable colloidal hard substance.

The accelerator is actually a catalyst, the role of the accelerator is to speed up the reaction speed of the resin and the curing agent, save the reaction time, the accelerator is generally divided into two categories: acidic and alkaline.

Packing

In the process of manufacturing adhesives, if a certain amount of filler is added, it will strengthen or grip the adhesion of the adhesive, and even reduce the production cost of the adhesive, in addition, the treatment of the filler can also enhance the heat resistance and dimensional stability of the adhesive, so that the quality of the adhesive has a higher performance.

Tougheners and plasticizers

Toughener can improve the flexibility of the adhesive, but also improve its impact resistance and other properties, it will generally be used at the same time with the curing agent, input part of the curing process, most of the toughener is based on viscous liquid as the physical properties of the existence, of course, the toughener can not be used indefinitely, too much use will reduce the quality of the adhesive.

Plasticizers can increase the fluidity of the glue, improve the speed and quality of the curing reaction, and plasticizers can also be regarded as a catalyst.

Thinners

As the name suggests, the diluent is used to dilute the concentration of liquid materials such as glue, and at the same time, it can also improve the fluidity of the glue rubber rubber, and the diluent is generally divided into two categories: reactive diluent and inactive diluent. Substances such as ethanol, acetone, butanol, toluene, xylene, cyclohexanone, ethyl acetate, butyl acetate, etc., can all be used as diluents in the production of adhesives.

Other excipients

In order to achieve the best results of the adhesive and avoid problems in the production process, other excipients such as antioxidants, coupling agents, flame retardants, etc., are sometimes added to the adhesive according to the production needs.

These are the basic ingredients that make up adhesive formulations, and most adhesives are usually produced using them in the manufacturing process, and with a slight adjustment according to the actual situation, the resulting adhesive will be completely different.

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