Our long-term stable supply of a variety of colors, a variety of types of plastic raw materials PC, plus fiber PC, fire PC, food-grade PC, PC and other medical grade. . . Long-term supply PC (polycarbonate) plastic raw materials, plastic raw materials are available (ROHS SGS UL Yellow Cards MSDS material properties of the original table) products factory original package, quality assurance, price concessions PC resin, a polycarbonate material, Welcome to the new and old customers to inquire negotiate! Process characteristics: water absorption larger PC plastic materials, must be preheated and dried before processing, drying of pure PC 120 ℃, modified PC for general use temperature 110 ℃ dried over four hours. Drying time can not exceed 10 hours. Generally available air extrusion determine whether sufficient drying. Use ratio up to 20% recycled material. In some cases PC phone transparent scratch resistant lens material, the use of 100% recycled materials, the actual amount depending on the product quality requirements. Recycled materials can not mix different masterbatch, otherwise it will seriously damage the properties of the finished product. Mold and gate design common mold temperature of 80-100 ℃ PC withstand materials and fiberglass was 100-130 ℃, small articles needle-shaped gate, gate depth should be 70% of the thickest part of the other gate annular and rectangular. Gate bigger the better, in order to reduce the plastic is caused by excessive shear defects. Vent depth should be less than 0.03-0.06mm, the flow path as short and round, stripping slope is generally about 30'-1. Melt temperature of the air injection can be used to determine the level of the processing temperature. General PC plastics processing temperature 270-320 ℃, some modified or low molecular weight PC plastic materials 230-270 ℃. Injection speed too fast injection speed is more common with molding, electrical switches such as playing pieces. Common to Slow - rapid prototyping. Back pressure of about 10bar back pressure in the absence of gas lines and mixing conditions can be appropriately reduced. The residence time in the long residence time at high temperature, the material will be degraded, put also CO2, turns yellow. Do not use LDPE, POM, ABS or PA cleaner cartridge. Application of PS cleanup. PC_PC Jichang plastic raw material manufacturers _ provided by the Dongguan City, often Jichang plastic materials. Dongguan Chang-ping Jichang plastic materials (jichang668.1688.com/)(www.POM100.COM) is specialized in "DuPont POM, Japan Polyplastics POM, Bayer PC, Bayer TPU" of enterprises, companies adhering "honesty, hard service" concept, to provide you with the highest quality products and services. Welcome to inquire! Contact: Mr. Zhou.