According to the characteristics of the metal adhesive and its use, we know that he is mainly used for metal items, then, he is made of what materials? Let's see what the main raw materials of metal adhesives are:
1) E-51 ring soft resin, is a kind of thick and transparent liquid. Its molecular weight is about 370. Epoxy value greater than 0.5. Excellent combination of metals and nonmetals
Force. Good heat resistance, insulation, hardness and flexibility. Can be used in metal, ceramics, glass. Bonding of water materials, etc.
2) line view type poly cool resin. It is a synthetic resin made by condensation of bubbles with diacid and dialcohol or other similar reactions. It is mainly used in the manufacture of glass fiber reinforced plastics and coatings, also used in the manufacture of cement and plastic powder.
3) Phthalic anhydride. Also known as benzene drunk, pure crystal for scale, melting point 130.0℃, boiling point 295.09℃ (285.54℃), relative density 1.527(4/4℃). Easily sublimated, slightly soluble in cold water, easily soluble in hot water and immediately hydrolyzed into phthalic acid, soluble in ethanol, benzene and pyridine, slightly soluble in ether. Used for making dyestuff, medicine, polyester resin, drunk acid resin, plastic, plasticizer and polyester, etc.
4) Aluminum oxide powder. Commonly known as bauxite. White powder, relative density 3.9 -- 4.0, melting point 2 050℃, boiling point 2 980℃. Insoluble in water, but gradually soluble in concentrated sulfuric acid. As an abrasive, it is also used in making porcelain, refractory materials and artificial gems. It is made by forging and burning aluminum hydroxide.