Dongguan Jichang plastic materials company tell you: poly difference acetal copolymer of? The first point to say is that ingredients: POM from pure formaldehyde polymerization catalyzed BF3 ether complexes made by the acetal copolymer of trioxane and dioxolane ring-opening polymerization, to obtain a second, density: homo POM density of 1.43g / cm3, while POM copolymer was 1.41g / cm3; there is a degree of crystallinity: homo POM was 75% to 85% 70% 75 POM copolymer melting point is a difference, however? 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 an intermediate product crude oligomers, Japan Polyplastics POM plastic materials Guangdong agent, then aggregation of production: worldwide and only the United States DuPont POM Asahi Kasei to produce homo (monomeric) formaldehyde, so the price is relatively high! Other Polyplastics POM, POM injection materials Guangdong factory outlets, Mitsubishi P, South Korea project POM, Ticona POM, Horst, BASF POM, LG, and so can only produce acetal copolymer (of course domestic Yuntianhua POM, blue Star, day base, Long-steel too) high formaldehyde homopolymerization It is also very important. . . . Product range, the information is complete, Guangdong POM plastic materials manufacturers, the price has the absolute advantage! If necessary, please contact the company, POM, to ensure that products imported original package DuPont materials, Guangdong provincial agency, the National Guangdong POM plastic raw materials supply price consulting, Jichang plastic, POM from Dongguan City Changping Jichang plastic materials provided. Dongguan Chang-ping Jichang plastic materials (jichang668.1688.com/)(www.POM100.COM) is Dongguan, a leader in engineering plastics for many years, the company implement the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In Jichang plastic leadership with the staff warmly welcome all inquiries negotiations to create a better future Jichang plastic.