Shanghai Daoqin Plastics Co., Ltd.

brief introduction

polycarbonate (PC) （英文简称PC） is separation in has carbon acid ester polymer/macromolecule polymer, according to ester structure can separation is aliphatic, aromatic, aliphatic - aromatic and other multiple type type. its in due to aliphatic and aliphatic - aromatic polycarbonate (PC) mechanical properties relatively low, from made its in engineering plastics application.

仅 has aromatic polycarbonate (PC) obtain industrial production. due to polycarbonate (PC) structure upper property, already formed is large engineering plastics in growth speed degree most fast general purpose engineering plastics.

chemical property 质

polycarbonate (PC) （PC） is carbon acid polyester type, carbon acid 本身并 unstable, its material （如 light gas, 尿素, carbon acid salt, carbon acid ester ）都 has stability property.

按 alcohol structure different, can will polycarbonate (PC) separation formed and 芳族两 type.

脂族 polycarbonate (PC). poly 亚乙基 carbon acid ester, poly 三亚甲基 carbon acid ester and its copolymer, melting point and 玻璃化 temperature degree low, strong/high degree 差, can used as structure material; utilizing its material versus property and material biodegradable features, can in material 缓释放载体, 手术缝 combined 线, 骨骼支撑材 material and other obtain application.

polycarbonate (PC) resistant low acid, resistant low alkali, resistant in property 油.

polycarbonate (PC) resistant outer light, resistant strong/high alkali.

PC is types type carbon acid polyester, separation in carbon acid and 另一 基团交替排列, this can is aromatic, can is aliphatic, can 两者皆 has. di 酚A type PC is most important industrial product.

PC is 几乎无 color 玻璃态 无定形 polymer, has very good optical property. PC polymer/macromolecule amount resin has very high tough property, 悬臂梁 notched impact strength is 600~900J/m, filling grade heat deflection temperature (HDT) large is 130℃ , glass fiber reinforcement rear can make this value increase 10℃. PC flexural modulus can 达2400MPa above, resin can processing made formed large rigid property products. low 于100℃时, in negative lower creep rate very low. PC hydrolysis resistant property 差, can used for heavy 复经受 high pressure products.

PC main/primary property can defect is hydrolysis resistant stability property high, for 缺口敏感, resistant has machine chemical product property, resistant property relatively 差, long 期暴露于紫 outer in 会发黄. and other resin 一样, PC容 easy certain has machine solvent agent 侵蚀.

PC材 material tool has flame retardant property, resistant oxidation property.

material property 质

density: 1.18－1.22 g/cm³线膨胀 rate: 3.8×10-5 cm/℃  heat deflection temperature (HDT): 135℃  low temperature -45℃

polycarbonate (PC) color transparent, heat resistant, impact resistant, flame retardant BI grade, in use temperature degree inner has good mechanical properties. property can polymethyl methacrylate (PMMA) versus ratio, polycarbonate (PC) resistant impact property can good, rate high, processing properties good, need additives tool has UL 94 V-2 grade flame retardant property can. is polymethyl methacrylate (PMMA) versus for polycarbonate (PC) price relatively low, can through polymerization methods production large type device parts.

材 material wear resistance is versus for, ABS材 material and PC材 material comparison 话, that is PC材 material wear resistance comparison good. is versus for/regarding large separation plastics material 看, polycarbonate (PC) wear resistance is comparison 差, in lower water 平, therefore used for easy abrasion loss applications polycarbonate (PC) device parts need for surface 进行特殊处理.

classification

anti-static PC, conductive PC, add anti 火PC, UV resistant weather resistant PC, food grade PC, resistant chemical property PC.

main/primary advantages

1． mechanical properties: strong/high degree high, fatigue resistance, dimensions stability, creep small （ high temperature conditions lower less has 变化）;

2． heat resistant aging property: reinforcement rear UL temperature degree 指数达120~140℃（户 outer long aging property very good ）;

3． resistant solvent agent property: force cracking;

4． for water stability property: high temperature lower water easy separation understanding （ high temperature high wet ring lower use 需谨慎）;

5． insulation property can: excellent 良（潮 wet, high temperature can maintain electrical property can stability, is manufacturing electronics, electrical parts 理想材 material ）;

6．介 electrical 系数: 3.0-3.2;

7． resistant electrical property: 120s;

8． molding processing property: equipment injection molding or 挤塑.