phenol formaldehyde CAS# 9003-35-4

phenol formaldehyde , Promotion Season Now in Store and Free Sample for Testing with Factory Price

• Chemical Name: thermoset
• CAS No.:     9003-35-4
• Molecular Fomula: ：C7H6O2
• Molecular weight：122.12134
• Appearance:Dark Yellow powder
• Sample：Available

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Description of phenol formaldehyde

• thermoset resins (PF) are synthetic polymers obtained by the reaction of phenol or substituted phenol with formaldehyde. Used as the basis for Bakelite, PFs were the first commercial synthetic resins (plastics). They have been widely used for the production of molded products including billiard balls, laboratory countertops, and as coatings and adhesives. They were at one time the primary material used for the production of circuit boards but have been largely replaced with epoxy resins and fiberglass cloth, as with fire-resistant FR-4 circuit board materials.
  There are two main production methods. One reacts phenol and formaldehyde directly to produce a thermosetting network polymer, while the other restricts the formaldehyde to produce a prepolymer known as novolac which can be moulded and then cured with the addition of more formaldehyde and heat. There are many variations in both production and input materials that are used to produce a wide variety of resins for special purposes.

Basic Info of phenol formaldehyde

Basic Info
Numbering system
Properties
Safety Info
Basic Info

Numbering system

Properties

Safety Info

What is thermoset ?

• With the progress of science and technology and the development of society, chemical products have invariably permeated our daily lives, in medicine, food, cosmetics, electronics, industry, and other areas, becoming an essential part of our lives. One such product is thermoset   which has developed particularly rapidly in recent years. Do you know about thermoset?
• The official answer：Phenolic resin is also called Bakelite, also known as Bakelite powder. The original colorless or yellow-brown transparent material, marketed and sold often with coloring agents, and red, yellow, black, green, brown, blue, and other colors, there are granules, powder. Resistant to weak acid and weak alkali, decomposition occurs when encountering strong acid, corrosion occurs when encountering strong alkali. Insoluble in water, soluble in acetone, alcohol, and other organic solvents. Phenol is obtained by condensation with formaldehyde. Solid phenolic resin is yellow, transparent, amorphous lumpy material, slightly red because of the free phenol, specific gravity 1.25~1.30, soluble in alcohol, insoluble in water, stable to water, weak acids, and weak bases solution. It is a resin made by condensation of phenol and formaldehyde under the condition of catalyst, neutralization, and water washing. It can be divided into thermosetting and thermoplastic due to the different catalysts chosen. Phenolic resin has good acid resistance, mechanical properties, heat resistance, and is widely used in anti-corrosion engineering, adhesives, flame retardant materials, grinding wheel blade manufacturing, and other industries. Liquid phenolic resin is a yellow, dark brown liquid, such as alkaline phenolic resin is mainly used as a casting adhesive. 1872 German chemist Bayer first synthesized phenolic resin, 1907 Belgian-American Baekeland proposed phenolic resin heating curing method, so that the industrial production of phenolic resin, in 1910 Germany Bailin built the world’s first synthetic phenolic resin factory, creating a human synthetic In 1910, the world’s first plant for synthesizing phenolic resins was built in Germany. In 1946, the above-mentioned plastic factories in China began to produce small quantities of phenolic resins, which were widely developed in China in the 1950s and entered the heyday of the development in the 1980s, with production enterprises all over the country. The use of phenol, aldehyde type, catalyst categories, phenol, and aldehyde molar ratio of different can produce a variety of phenolic resin, it includes linear phenolic resin, thermosetting phenolic resin, and oil-soluble phenolic resin, water-soluble phenolic resin. It is mainly used in the production of pressed plastic powder, laminated plastic; manufacture of varnish or insulation, corrosion-resistant coatings; manufacture of daily necessities, decorative products; manufacture of sound insulation, heat insulation materials, artificial board, casting, refractory materials, etc.

What’s the application of phenol formaldehyde ?

• It is used to make adhesives, gumwood powder, electrical appliances, fish rods, plywood, wood laminates, etc. Used as tackifying resin of neoprene adhesive, vulcanizing agent of butyl rubber. Store in a cool, ventilated room, away from fire and heat. It is used to make insulating structural parts of telecommunications, instruments, and traffic appliances with high dielectric properties used to make bottle caps and buttons, insulating structural parts of low-voltage electrical appliances for daily use, insulating structural parts of low-voltage electrical appliances and instrument shells, low-voltage electrical appliances used in hot and humid areas, etc. It has outstanding water resistance, stability, and self-lubricating properties, used for self-lubricating bearings, gas meter components, impellers of water pump shells, and molded products used to make parts of electromechanical, instrumentation, textile, chemical, and other sectors, low-voltage electrical appliances. It is used to make parts of electromechanical, instrumentation, textile, chemical and other sectors, low-voltage electrical parts, and is mainly used to make low-voltage electrical insulating structural parts for daily-use products, mechanical parts, daily-use electrical insulating parts, high- and low-voltage electrical parts, traffic electrical equipment and radio parts and TV parts, etc. It is used in the coating industry for wood bonding, is used to make general electrical structural parts, and is used to make gas meter parts. Electrical insulation performance requirements of electromechanical, instrumentation, telecommunications industry, aviation and automotive industry, accessories and electrical parts used at room temperature with p-toluenesulfonic acid as a curing agent can be self-hardening, with urotropine as a curing agent, can also be used for the manufacture of low-voltage electrical appliances, instruments and other insulating structural parts used for the manufacture of heat-resistant, high-strength mechanical transmission parts, electrical structural parts, etc. for the manufacture of low-voltage electrical appliances, instrumentation insulation parts, etc. Used in the manufacture of electronic products insulating structural parts used in the manufacture of water wheel pump bearings used as raw materials for phenolic plastics, adhesives, anti-corrosion coating, etc. Used in cast iron, ductile iron, cast steel, can also be used for non-ferrous metal castings shell core with laminated sand used in the manufacture of electrical appliances, rubberwood and other plastic products mainly for the manufacture of fast-drying coatings, can also be used to manufacture laminated sand, used in cast steel, cast iron shell (core) casting for Paint, ink and other industries used for making electrical insulating parts, instrument shells, size air switches, contact switches, etc. used for pressing or injecting electrical appliances, instruments, aluminum pots and pans, etc. shells, handles used for making electrical insulating paint, radio components, laminated materials, fiberglass, paint, etc. used mainly for shell (core) casting of cast aluminum parts, with good collapse characteristics used for making solid core potentiometer bases.

Conclusion

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