Shanghai Daoqin Plastics Co., Ltd.

plastics modified has its 目, types demand use modified methods has different. this introduction types to modified demand and its use modified methods.

1, plastics density

（1） reduce plastics density

说 reduce density can can 你清楚, is 换 说 method 你就明白: let plastics light. reduce plastics density methods has foaming modified, add light filler and blending light resin types. plastics products foaming molding is reduce its density most has methods. add light material and blending light resin types modified methods, can small degree reduce density, its drop generally has 50% left right, most low versus for density can to 0.5 left right. plastics foaming products density scope/range very 广范, versus for density most low can to 10-3.

（2） improve/increase plastics density

improve/increase plastics density is make resin versus for density rise high types methods, main/primary is add heavy filler and blending heavy resin. add heavy filler improve/increase plastics density methods main/primary filler has metal powder, heavy material filler; blending heavy resin improve/increase plastics density, types methods improve/increase degree comparison small, generally most high can to 50% left right. main/primary 适于一 light resin 如PE, PP, PS, EVA, PA1010 and PPO and other. add heavy resin has: PTFE, FEP, PPS and POM and other.

2, plastics transparent property 改进

about/regarding plastics transparent property, in front in has introduction, this simple introduction lower. plastics transparent property principle is utilizing and transparent property 关系. plastics transparent property large small and its products crystallization degree large small and crystallization structure has 关, through control products different structure, can improvement its transparent property.

衡 amount types material transparent property good bad, has many property can indicators need 考虑. commonly used indicators has: light transmittance, degree, light 指数, di and color dispersion and other. in upper indicators in, light transmittance and degree indicators main/primary table/sheet material light property, light 指数, di and color dispersion indicators main/primary used for table/sheet material light quality. types good transparent property material, requirements upper property can indicators excellent 且均衡.

commonly used 改变晶 type methods has:

① control crystallization quality, 例如晶 type, content, dimensions, 晶体规整 property control;

② improve/increase rate, main/primary is through add effect/influence transparent property high rate has machine material or machine material improve/increase;

③ reduce di 折射, can through control processing in orientation, reduce orientation degree to reduce di 折射 目.

④添 add plastics transparent property, is in transparent resin in add small separation material 质, from improvement its transparent property methods. utilizing this type of methods can improve/increase light transmittance, rate, reduce di 折射.

⑤添 add nucleating agent, is increase large transparent resin light transmittance most has 效 一 types methods. nucleating agent is types can promote crystallization small separation material 质. it in resin in can to function, make has versus formed formed versus formed 核, increase crystallization system inner 晶核 数目, make micro 晶 数 amount increase more, 球晶数目 decrease/reduce, from make dimensions fine, resin transparent property improve/increase.

⑥添 add high rate machine material

⑦添 add can reduce di material 质

⑧添 add resistant agent

3, plastics hardness and flexible 改进

（1）添 add plastics hardness is in plastics in add hard additives types modified methods. commonly used hardness add agent is rigid property machine filler and fiber.

（2） plastics surface hardness methods is improvement plastics products outer table/sheet hardness, products internal hardness 不变. this is types low cost hardness methods. this type of modified methods main/primary used for housing/shell 体, decoration material, optical material and day use product and other. this type of modified methods main/primary coating, plating and surface treatment types methods.

（3） blending and composite/compounding plastics hardness: ① plastics blending methods in low hardness resin ※※ mixed high hardness resin, improve/increase its overall hardness. Common blending resin has: PS, PMMA, ABS and MF and other, need modified resin main/primary is PE type, PA, PTFE and PP and other. ② plastics composite/compounding hardness methods in low hardness plastics products surface upper composite/compounding high hardness resin. methods main/primary combined extrusion products, sheet/plate, sheet/slice, film and pipe/tube and other. commonly used composite/compounding resin is PS, PMMA, ABS and MF and other.

（4）添 add increase agent plastics flexible: increase agent main/primary function is improvement resin processing property, reduce processing temperature degree, improvement processing flow property. its add to related resin in, also can products flexible. suitable for increase agent 进行改进 flexible resin has: PVC, PVDC, CPE, SBS, PA, ABS, PVA and chlorine polyether and other.

4, plastics processing properties 改进

plastics processing process is plastics raw materials （ resin + additives ）变 formed tool has strong/high degree products process. thermoplastic property resin and hot solid property resin its processing process in 发生 变化 different. plastics processing properties main/primary in in: improve/increase resin hot separation understanding temperature degree; reduce resin melt temperature degree; improvement resin processing flow property; improvement resin melt features. commonly used modified methods is add modified, add increase agent and lubricant. increase agent can improve/increase polymer property; lubricant function is reduce material material between and material material and processing equipment surface abrasion scratch force, from reduce melt flow retardant force, reduce melt viscosity, improve/increase melt flow property, melt and equipment viscous 附, improve/increase products surface light degree and other.

5, plastics reinforcement

plastics reinforcement generally is add strong/high filler and fiber. large separation filler 直接添 add to resin in, 会引起 plastics tensile strength decline. has surface 独步一时 or 直接添 add filler 不但不引起 tensile strength decline, 反而会 in 一定程 degree upper improve/increase tensile strength, 我们称 this category of filler is strong/high filler. strong/high reinforcement modified and reinforcement fiber, can used for strong/high degree requirements high combined. plastics add fiber reinforcement methods is most commonly used has reinforcement methods. reinforcement use fiber type material is plastics use most main/primary reinforcement material, its use amount can reinforcement material 90% above. reinforcement use fiber type material fiber and must large type, specific product types main/primary has: machine type （如 glass fiber, fiber, carbon fiber, must, fiber, fiber and fiber and other ）, has machine type （如PAN fiber, polyethylene (PE) fiber, PA fiber, PC fiber, PVC fiber and polyester fiber and other ）, metal type （如硼 fiber and aluminum, titanium, and other metal must and other ）.

6, plastics toughened

plastics toughened generally is blending elastomer material, commonly used elastomer toughened material has: high impact resistance resin, 如CPE, MBS, ACR, SBS, ABS, EVA, modified resin （MPR） and other; high impact resistance 击橡胶, 如乙丙橡胶（EPR）, ternary 乙丙橡胶（EPDM）, 丁腈胶（NBR）, 丁苯胶, 天然胶, 顺丁胶, chlorine 丁胶, poly 异丁烯 and butadiene and other.

7, plastics hot property can and flame retardant property can 改进

effect/influence plastics products use hot property can main/primary is heat resistant temperature degree and low temperature resistance temperature degree. heat resistant temperature degree main/primary can use heat deflection temperature (HDT), heat resistant temperature degree and soft table/sheet 示; low temperature resistance temperature degree generally can use temperature degree table/sheet 示. in has filler in, remove has machine filler outer, large separation machine material filler can obvious improve/increase plastics heat resistant temperature degree. commonly used heat resistant filler has: carbon acid 钙, slip powder, silicon 灰石, 云母, 煅烧陶土, aluminum and and other. 例如, most high use temperature degree can 达1000摄氏 degree, is most has heat resistant modified filler. another, plastics reinforcement heat resistant property ratio filling also need good, this main/primary is is large separation fiber heat resistant temperature degree separation high, melting point large ultra- 1500摄氏 degree. commonly used heat resistant fiber main/primary has: fiber, glass fiber, carbon fiber, must, polyamide (PA) fiber and acrylic ester fiber and other.

large more plastics flame retardant property is separation good, plastics formulation in need add flame retardant. flame retardant, it is type can retardant plastics or made 火焰传播 additives. in addition, also need add agent 辅助.

8, plastics cost reduce

reduce plastics cost is 厂家 追求, therefore use modified methods reduce cost. main/primary methods has add filler, blending resin and other. 当然, supply can in reduce cost meanwhile need property can need.

plastics modified non is above this inner 容, specific modified process is very complex, 一方面 is cost 利益限 made, 另一方面 is demand, need multiple modified methods achieve.

（文章 源 fast 塑观点）