Shanghai Daoqin Plastics Co., Ltd.

        众 周知, plastics recycled material different new material, 往往会存 in more more defect, ratio processing properties, force property can, appearance color 泽, resistant aging property can and other and other, make effect/influence plastics recycled material application. is can can decrease small recycled material defect effect/influence, need add plastics additives improvement.

        1, plastics additives function

         plastics additives can has improvement recycled material process processing properties, improve/increase production efficiency;并 can improvement recycled material products material mechanical properties and use property can, improve/increase its use value and as lifespan, to recycled material high value 化 目.

         plastics additives type very more, to function different, can lower table/sheet add understanding:

        2, for additives requirements

        因 is plastics processing in and products use effect/influence factors very more, therefore for selection additives requirements very high, main/primary has below/following 几点:

        ① 应 and by add combined formed resin has relatively good versus property, can long stability, uniform dispersion in resin in;

        ② 协同效应. need amount use versus can promote function plastics additives;

        ③ resistant property good. 不渗析, 不会发, 不迁移 or by water and liquid material 质萃取;

        ④ 适 combined products use requirements;

        ⑤ for processing conditions property need good;

        ⑥ dispersion property good, can in processing molding process in easy dispersion uniform.

         above can meet/satisfy large more recycled material for additives requirements, plastics additives can to this 几点就会发挥出 high function, make recycled plastics property can to most large improvement.

        3, commonly used types plastics additives

        1. features additives

        此 type additives main/primary function is plastics products certain types features, material mechanical properties, flexibility property, flame retardant property and other.

        ① increase agent

         increase agent can reduce plastics melt temperature degree, viscosity and hardness, increase plastics flow property and products soft/flexible property and resistant property, from improvement plastics processing properties and use property can.

         increase agent main/primary used for PVC, fiber 素衍生 material, combined formed and nylon and other plastics in, is has plastics need increase agent, its in 约80% increase agent used for PVC in.

        ② filling agent

        就 is toward plastics in add types inert property material, is increase quality, reduce cost and other. filling agent also can improvement plastics processing properties and certain use property can, high strength, heat resistant property and corrosion resistant property and other.

         filling agent generally is powder material 质, main/primary product types is carbon acid 钙, slip powder, high 岭土, silicon 灰石, and powder and other, used for PVC, polyolefin and ABS resin in.

        ③ reinforcement agent

         reinforcement agent can significantly improve/increase recycled material products strong/high degree, large more is high strength, fiber inert property material 质, glass fiber, carbon fiber, and other, glass fiber (GF) use amount most large.

         reinforcement agent already used for PVC, PP, PE and nylon and other plastics in.

        ④ color agent and light increase agent

         color agent main/primary is plastics color, make products more 美观. light increase agent can has improvement recycled plastics products appearance property can, can and color agent use, make products color more 靓丽.

        ⑤ flame retardant

         flame retardant is types can retardant or plastics additives. main/primary separation is add type flame retardant and reaction type flame retardant large type. add type flame retardant usually add methods combined to resin in, it and resin between is simple material mixed combined; reaction type flame retardant generally is separation inner flame retardant and reaction property mono 体, 如卤代 acid 酐, di and more alcohol and other, due to tool has reaction property, can chemical combined to resin separation upper, formed is plastics resin separation, more reaction type flame retardant structure also is combined formed add type flame retardant mono 体.

        ⑥ impact modifier

         can improve/increase plastics impact strong/high degree additives is impact modifier. generally is elastomer and tough property good plastics, main/primary used for PVC, PS, PP and engineering plastics in.

        ⑦ foaming agent

         foaming agent can generate gas 体, make plastics products generate or material 质, separation is material foaming agent and chemical foaming agent. material foaming agent generally 依靠自身 material 理状态 变化释放 gas 体, more is property liquid material 质, fluorine chlorine 烃(如 fluorine 里昂), low 烷烃(如戊烷) and pressure shrink gas is material foaming agent table/sheet. chemical foaming agent is chemical separation understanding 释放出 gas 体进行 foaming, commonly used more is 肼 衍生 material, its in most main/primary is nitrogen 二甲酰 amine, can used for PVC, PE, PS, PP, ABS and other plastics in.

        2. stabilizer

         stabilizer main/primary function is or plastics in material 理(add hot, light) and chemical (oxygen, micro material) factors function lower degradation. main/primary has heat stabilized agent, light stabilizer and antioxidant and other.

        ① heat stabilized agent

         heat stabilized agent can or due to hot function plastics bad and 进一步 degradation. usually add 以说明, heat stabilized agent polyvinyl chloride (PVC) and chlorine ethylene copolymer processing use stabilizer. polyvinyl chloride (PVC) and chlorine ethylene copolymer hot property resin, it in hot processing easy chlorine hydrogen, 进而引发 hot aging degradation reaction. industrial upper application heat stabilized agent product types large 致包括 salt property salt type, metal type, has machine type, has machine type and other stabilizer and ring oxidation combined material type, acid ester type, more alcohol type, ketone type and other has machine stabilizer.

        ② light stabilizer

         light stabilizer main/primary is made or decrease low plastics light degradation, improve/increase plastics products weather resistance. cationic light in outer for plastics bad function most large, in addition high poly material in or color can make polymer light oxidation degradation.

         light stabilizer main/primary used for polyolefin, its used for modified PS, PVC, PU and other.

        ③ resistant oxidation agent

         resistant oxidation agent can 够延缓 or made plastics oxidation degradation. antioxidant is plastics stability additives most main/primary type type, has polymer resin and to antioxidant application.

         generally separation is resistant oxidation agent and resistant oxidation agent. antioxidant 以捕获 polymer oxygen 自由基 is main/primary function;辅助 antioxidant tool has separation understanding polymer oxidation combined material function, 也称“ oxidation material separation understanding agent ”.

        3. processing additives

         processing additives can make plastics recycled material processing easy molding or improve/increase molding efficiency, main/primary has demolding agent, lubricant and other.

        ① lubricant

         lubricant can reduce plastics melt degree or melt and processing equipment between friction coefficient, can separation is inner lubricant and outer lubricant type. inner lubricant can through reduce polymer separation 子间 摩 scratch, reduce molding processing in high poly material viscosity decrease/reduce can amount consumption; outer lubricant function is decrease/reduce high poly material and processing equipment between scratch or viscous 附, usually outer lubricant and high poly material versus 容.

        ② demolding agent

         similar types outer lubricant, in products and mold between formed thin high 效隔离 agent, make products can 自行脱出 mold.

        4, plastics additives development outlook/prospects

        随 plastics products industrial development, plastics additives as is general purpose plastics engineering 化, engineering plastics high property can can or formed separation and combined formed resin modified achieve function key/critical, plastics additives industry positive toward 规模化, 集约化 direction development. plastics processing additives application areas will 不断拓 wide, product product types toward high 效, more function, composite/compounding type and specialized type development. high property can green, environmental protection, 无毒, high plastics additives R&D and production will formed is future plastics additives industry development direction.