Shanghai Daoqin Plastics Co., Ltd.

        TPE toughening agent upper product types more, different material selection different toughening agent more significantly. in selection TPE toughening agent 时, need attention/notes below/following 几点.

        一, TPE and resin versus property need good

        1, property versus 近原则

         plastics property large small is: fiber plastics >PA>PF>EP>PVC>EVA>PS>PP, HDPE, LDPE, LLDPE;

        TPE property large small is 胶>丁晴胶> chlorine 丁胶>丁苯胶>顺丁胶>天然胶>乙丙胶; specific selection 时, property need for and 匹配, high property resin selection high property TPE, low property resin selection low property TPE.

        2, solvent understanding degree parameters versus 接近原则

         in specific selection 时, resin and TPE solvent understanding degree parameters value need small 于0.5, can ensure its versus property good.

        二, commonly used TPE compatibilizer

         compatibilizer add for/regarding resin and TPE versus property good toughened system, add 入适当 compatibilizer, improve/increase versus property. commonly used compatibilizer is resin or toughening agent acid or acrylic type grafting material.

        三, TPE function

         different product types TPE between add 入往往 tool has function, in PP toughened formulation in, EPDM and ABS composite/compounding add toughened more good.

        四, TPE add amount

        TPE add amount is more good, generally has most value, in PVC in add 入MBS时, add amount 15% is most large value, PS in add 入TPE add amount most large 15%.

        五, rigid property 补偿

        TPE as is resin toughened material 时, in toughened meanwhile, make tensile strength, flexural strength and other rigid property indicators large degree decline, is rigid property loss 失, in formulation in add rigid property filler carbon acid 钙; also can in TPE toughened system in add 入AS, PMMA and other rigid property has machine resin.

        六, add processing additives

         for/regarding TPE add amount large toughened formulation, remove ACRTPE outer (ACP tool has 核— housing/shell structure acrylic ester type copolymer), can increase melt degree. is 此, large need add lubricant or processing additives, improvement its processing properties.

        七, degree large small

        TPE degree for toughened effect/influence very large, 按TPE toughened 理论, for property resin 如PS, PP and other, TPE degree can versus for large,而 for/regarding tough property good resin 如PVC, POM, PET and other, TPE degree can versus for small 一.

        八, other factors

         products need transparent, 选MBS; products need flame retardant 时, 选CPE, products need weather resistant 时, 选CPE, ACR, EVA, 不选MBS, ABS; products need cost low 时, 选CPE, EVA, different TPE price high low is MBS>ACR>ABS>NBR>CPE>EVA.