Shanghai Daoqin Plastics Co., Ltd.

PC toughening agent versus large 家都知道 toughening agent production is versus product tough property, that remove this causes, is what production toughening agent this product use 呢?

    1, currently development toughening agent main/primary day is is improvement hard polyvinyl chloride (PVC) property. world upper hard polyvinyl chloride (PVC) use amount growth and toughening agent development, processing modifier day development has 密切 关系. USA is 例, 1965 year polyvinyl chloride (PVC) in hard 质 占10%, 1970 year rise is 20%, to 1975 year 占40%, 1980 year ultra- 50%, expected to 2000 year will 达75%. add increase agent polyvinyl chloride (PVC) in 40℃ below/following 时就呈脆 property, but also in add relatively less increase agent 时, not only can toughened 反而促 make its property, this is 谓 反 increase 塑效应, therefore add toughening agent hard polyvinyl chloride (PVC) has very large use value.

    2, toughened polyvinyl chloride (PVC) method is through copolymer let polyvinyl chloride (PVC) inner increase 塑, method not only but also 效果不佳. 不久发现添 add certain elastomer can reduce polyvinyl chloride (PVC) temperature degree, most commonly used additives is 二烯烃 or acrylic polymer, especially is butadiene polymer due to its 玻璃化 temperature degree low tool has most good toughened property, 例如ABS, MBS is polyvinyl chloride (PVC) most commonly used main/primary toughening agent. in addition, 0PE and EVAJ, type 橡胶, acrylic ester polymer and surface use hard acid coating carbon acid and other is polyvinyl chloride (PVC) has toughening agent.

    3, different plastics （如PC,ABS,PBT,PET,PA,PPO,PP and other ） use toughening agent type type is has 差异 （ from most combined degree upper 讲）, or has toughening agent can use in more plastics in toughened, is from property ratio upper 不一定适 combined, has toughening agent is 根本不适 combined application in types plastics. this very good understanding. certain plastics can use multiple toughening agent product, 但 起 to function is has 差异, or certain plastics can use types toughening agent is toughened can, PC toughening agent from fine degree 考虑, 我们应该想想 is is combined use in most 适当 方. this has or has 忽略思考.