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Phenol + formaldehyde === phenolic resin (catalyst will only affect the shape of phenolic resin), phenolic resin is a polymer compound, the principle is as follows: phenol OH on phenol will affect the hydrogen on the ortho position on the benzene ring, so that the h on the ortho site becomes more active and easier to react, so the reaction is equivalent to the benzene ring is two and a half bonds, and the carbon-oxygen double bond in formaldehyde is broken at the same time, and the benzene ring is two and a half bonds combined, and there are multiple polymers of such monomers to form phenolic resin.
Phenolic resins are mainly used in the manufacture of various plastics, coatings, adhesives and synthetic fibers. Compression powder.
Compression powder for the production of molded products is one of the main uses of phenolic resins. The resin is impregnated with filler and mixed with other additives by roller pressing method, spiral extrusion method and emulsion method, and then crushed and sieved to obtain compression powder. Wood powder is commonly used as filler, and inorganic fillers such as mica powder, asbestos powder, and quartz powder are also used to manufacture some parts with high electrical insulation and heat resistance.
Compression powder can be molded, transfer molded, and injection molded into a variety of plastic products. Thermoplastic phenolic resin compression powder is mainly used in the manufacture of electrical parts such as switches, sockets, plugs, daily necessities and other industrial products. Thermosetting phenolic resin compression powder is mainly used in the manufacture of high-electrical insulating parts.
Reinforced phenolic plastic.
Phenolic resin (mainly thermosetting phenolic resin) solution or emulsion impregnated with various fibers and fabrics, and various reinforced plastics that are dried and pressed are important industrial materials. It not only has high mechanical strength and good comprehensive performance, but also can be machined. Phenolic plastics reinforced with glass fiber, quartz fiber and their fabrics are mainly used to manufacture various brake friction plates and chemical anti-corrosion plastics; Phenolic plastics reinforced with high silica glass fiber and carbon fiber are important ablation-resistant materials for the aerospace industry.
Phenolic paints. Phenolic resin modified with rosin, phenolic resin etherified with butanol, p-tert-butylphenolic resin, p-phenyl phenolic resin have good miscibility with tung oil and linseed oil, and are important raw materials for the coating industry. The first two are used to formulate low and intermediate paints, and the latter two are used to formulate high-grade paints.
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1.Phenolic resins are condensation polymers formed by the polymerization of phenol and formaldehyde.
2.The ingredient is.
3.Phenolic resin, also called bakelite, is a good insulator.
4.It is usually used as a light switch shell, water dispenser shell, mobile phone shell, etc., and is used everywhere in life.
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Summary. Phenolic resins are used in the manufacture of various plastics, coatings, adhesives and synthetic fibers, and can also be used in electrical equipment.
Phenolic resins are used in the manufacture of various plastics, coatings, adhesives and synthetic fibers, and can also be used in electrical equipment.
I would like to ask, this paint is epoxy phenolic resin paint not.
Is it used for two components + diluent.
Dear, it is true, it must be used according to its proportion.
Teacher, this is another name for epoxy phenolic resin paint.
What is the general maximum temperature of epoxy phenolic resin paint.
Pro, epoxy phenolic resin paint itself is resistant to high temperatures, and can withstand high temperatures of 180 degrees.
Pro, epoxy phenolic resin paint itself is a regular name, so there is no other name.
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Question 1: What is phenolic resin? What does it do?
Phenolic resin is a general term for synthetic resin formed by polycondensation of alkylphenol and formaldehydel phenol under acid-base catalysis. The appearance of phenolic resins is usually colorless or yellow to brownish-red transparent bulk solids. Soluble in water.
Soluble in organic solvents such as acetone and alcohol. Phenolic resin is resistant to weak acids and alkalis, and is easy to decompose in strong acids and corrode in strong alkalis. Phenolic resin has excellent heat resistance, wear resistance, water resistance and aging resistance, and has the characteristics of good rigidity, dimensional stability and good electrical properties.
It is widely used in the manufacture of special-purpose plastics, coatings, adhesives and acid-resistant cements.
Question 2: What color is phenolic resin The color of phenolic resin is brown transparent or translucent, it is solid or powdery, and it can be bought on the Internet.
Question 3: What is phenolic resin Phenolic resin is a chemical substance, it has many uses, it can be bought on the material network, and the quality is ***.
Question 4: What is phenolic resin, what are its characteristics and classification Characteristics of phenolic resin: it is generated by polycondensation of phenols and aldehydes; Modification method: chemical modification and physical modification. If you don't understand, send me a message.
Question 5: What is the monomer of phenolic resin Phenolic resin is also called bakelite, also known as bakelite powder. It is obtained by polycondensation of phenol and formaldehyde.
The monomers of phenolic resins are phenol and formaldehyde.
Question 6: What is phenolic resin? What does it do?
Phenolic resin is a general term for synthetic resin formed by polycondensation of alkylphenol and formaldehydel phenol under acid-base catalysis. The appearance of phenolic resins is usually colorless or yellow to brownish-red transparent bulk solids. Soluble in water.
Soluble in organic solvents such as acetone and alcohol. Phenolic resin is resistant to weak acids and alkalis, and is easy to decompose in strong acids and corrode in strong alkalis. Phenolic resin has excellent heat resistance, wear resistance, water resistance and aging resistance, and has the characteristics of good rigidity, dimensional stability and good electrical properties.
It is widely used in the manufacture of special-purpose plastics, coatings, adhesives and acid-resistant cements.
Question 7: What is phenolic resin, what are its characteristics and classifications Characteristics of phenolic resin: it is generated by polycondensation of phenols and aldehydes; Modification method: chemical modification and physical modification. If you don't understand, send me a message.
Question 8: What color is phenolic resin The color of phenolic resin is brown transparent or translucent, it is solid or powdery, and it can be bought on the Internet.
1. Phenolic resin is also called bakelite, also known as bakelite powder. It is originally a colorless or yellow-brown transparent substance, and the market sales are often red, yellow, black, green, brown, blue and other colors with colorants, and there are granules and powders. It is resistant to weak acids and alkalis, decomposes in case of strong acids, and corrodes in case of strong alkalis. >>>More
Phenolic resin can be made into phenolic glue, phenolic fiber, anti-corrosion materials, thermal insulation materials, and compression powder. 1. Phenolic glue: mainly used in the bonding of plywood and precision casting sand mold of building materials plates. >>>More
Epoxy resin, raw materials used:
1.Bisphenol A. It is the main raw material used in epoxy resin, and there are also those that use bisphenol F. >>>More