Dongguan Jichang plastic materials company tell you: poly difference acetal copolymer of? The first point to say is that Japan POM POM plastic raw materials wholesale, ingredients: POM from pure formaldehyde polymerization catalyzed BF3 ether complexes made by the acetal copolymer of trioxane and dioxolane ring opening Second polymerized, density: density of homopolymerization POM 1.43g / cm3, and POM copolymer was 1.41g / cm3; there is a degree of crystallinity: homo POM 75% to 85%, 70% copolymer POM? 75 melting point is a difference, but less: poly POM is 175 ℃, copolymer of 160 ℃. The main differences in performance: homopolymers material has a very good extension strength, fatigue strength, mechanical strength than the copolymers of 10% to 20% formaldehyde about high crystallinity slightly higher but not easy to process, the copolymer material has good thermal stability, chemical stability and ease of processing of course, have the same place, regardless of homopolymer material or copolymer materials are crystalline materials and are not easily absorb water. Stability: POM stable than the acetal copolymer, POM generally direct polymerization of formaldehyde, and formaldehyde acetal copolymer generally need to first make a crude dimer intermediate products, the United States POM POM injection molding raw materials wholesale, then polymerization production : the world only the United States, DuPont and Asahi Kasei POM can produce homo (monomeric) formaldehyde, so the price is relatively high! Other Polyplastics POM, Mitsubishi P, South Korea project POM, Ticona POM, Horst, BASF POM, POM, LG, and so can only produce acetal copolymer (of course domestic Yuntianhua POM, Lansing, day base, Long Yu also steel) POM high and this is very important. . . . Professional conductive POM, POM antistatic plastic, specific varieties are: POM ABS, PA nylon, etc., with permanent electrical conductivity and uniform surface resistance of the conductive material surface resistance of 1 5 th to 10 th of 10 Ω cm Rooms, antistatic material surface resistance between 11 ^ 6 to 10 Ω cm 10 th and has good impact resistance and rigidity. Easy processing, excellent surface finish and no pollution. It can be widely used in plastic injection molding, extrusion, such as packaging, electronics, aviation and other fields of conductive and antistatic. In good faith first, quality assurance, POM plastic injection molding materials of various colors, reasonable price, good service concept of good faith to the general customer service, welcomed the call to discuss Japan POM POM plastic raw materials wholesale | POM | Jichang plastic from Dongguan Chang-ping Jichang plastic materials provided. Dongguan Chang-ping Jichang plastic materials (jichang668.1688.com/)(www.POM100.COM) strong, credible, in Dongguan, Guangdong and other engineering plastics industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Jichang plastic into the brilliant and you work for a better future!