Recently, a Japanese paper company successfully developed a new technology for dissolving waste paper in phenol to produce phenolic resin. According to the Chinese phenolic resin network experts, phenolic resin is mainly used in the production of daily necessities, decorations, such as common high-voltage electrical sockets, furniture plastic handles and so on. In the production of old newspapers and office waste paper can be used as raw materials, but the use of office waste paper as raw material costs are low, only half of the use of old newspapers.
Fluorine rubber refers to a synthetic polymer elastomer containing fluorine atoms on the carbon atoms of the main chain or side chain. The introduction of fluorine atoms endows rubber with excellent heat resistance, oxidation resistance, oil resistance, corrosion resistance and atmospheric aging resistance, and has been widely used in aerospace, aviation, automobiles, petroleum and household appliances and other fields. An irreplaceable key material in industry. Commonly used is 26 type fluorine rubber, which is a copolymer of vinylidene fluoride and hexafluoropropylene.
Fluorine rubber has a high degree of chemical stability and is the best medium resistance among all elastomers [1] . Type 26 fluororubber is resistant to petroleum-based oils, diester oils, silicone ether oils, silicic acid oils, inorganic acids, most organic and inorganic solvents, pharmaceuticals, etc., only low molecular weight ketones, ethers, Ester, not resistant to amine, ammonia, hydrofluoric acid, chlorosulfonic acid, phosphoric acid hydraulic oil.
It has high temperature resistance and can be used for a long time at 250 ℃.
Fluorine rubber has excellent weathering resistance and ozone resistance.
Because fluororubber has the characteristics of high temperature resistance, oil resistance, high vacuum resistance, acid and alkali resistance, and resistance to various chemicals, it has been used in modern aviation, missiles, rockets, aerospace, ships, atomic energy and other cutting-edge technologies as well as automobiles, shipbuilding, chemical , petroleum, telecommunications, instruments, machinery and other industrial fields for sealing products, hoses, protection and other applications.
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