Shanghai Daoqin Plastics Co., Ltd.

烯烃 type thermoplastic property elastomer TPE包括TPO and TPV(Thermoplastic Vulcanizate)两 types, thermoplastic property polyolefin elastomer (TPO) is soft 链段(large 于20％) and hard polyolefin formed blending material.

usually 橡胶组 separation is ternary 乙丙橡胶(EPDM), ***橡胶(NBR), 丁基橡胶(IIR) and 天然橡胶(NR); polyolefin separation main/primary is polypropylene (PP) (PP) and polyethylene (PE) (PE). currently use relatively more is EPDM and PP blending material, modified polypropylene (PP) or modified polyethylene (PE).

TPO硫化 rear elastomer is TPV． is and TPO不 can separation 割, versus versus formed thermoplastic property polyolefin elastomer, is in the future TPO main/primary development trend.

modified plastics use polyolefin type elastomer main/primary product types and features:

一, polyolefin type thermoplastic property elastomer

1. ethylene -α烯烃 copolymer, propylene -α烯烃 copolymer, 1-丁烯 homopolymer and copolymer, propylene —α烯烃 copolymer (metallocene catalytic)

① non crystallization or separation crystallization polyolefin,即 make in low temperature lower still tool has good soft/flexible property;

②无 color transparent,折射 rate and other 烯烃无 significantly 差别, new product types transparent property has decline;

③ and various polyolefin between has good hydrophilic and property, in dry mixed conditions lower can molding;

④ has good uniform property, film formed 时无凝胶, 无胶浆疙瘩;

⑤ and PE, PP same, tool has good heat resistant aging property, resistant property. use metallocene type catalytic agent catalytic rear, and XR versus ratio, molecular weight distribution uniform, tool has 25 ℃～35 ℃ low melting point, hot property good, can anti viscous 连.

2. ethylene, 12辛烯 copolymer （EOM）

① crystallization degree low, tool has can property, elastic property, pressure shrink deformation property, heat resistant property, transparent property and other property can;

② utilizing internal catalytic technology, can to uniform separation structure;

③ in separation 子主链 upper can grafting large separation long 链, tool has melt force and other property can;

④ in PP in can good dispersion, as is TPO type resistant impact modified material, production cost low 于EPDM.

3. ethylene, 2丁烯 copolymer

① through expand large molecular weight distribution scope/range, improvement process property can;

② through control grafting long molecular weight, improve/increase melt force, improvement melt bad property, extrusion property. maintain has force property can;

③ due to polymer/macromolecule amount, high degree type type new product structure tool has force property can, improve/increase melt degree and other.

二, polyolefin elastomer POE property can and use scope/range

POE is 由辛烯 and polyolefin resin formed, versus and dispersion versus 呈现两 versus separation polymer mixed material, through electronics micro or versus micro 镜 图像 table/sheet 明, can formed 以橡胶 is versus, resin is dispersion versus or 以橡胶 is dispersion versus, resin is versus, or 者两者都呈现连续 versus 时 互穿网络 structure. versus 态 变化, blending material property can 也随之而变.

若橡胶 is versus 时, 呈现近似硫化胶 property can; resin is versus 时, property can plastics.

processing and combined

POE不需 mixing/compounding and 硫化. can using/adopting usually thermoplastic property plastics processing equipment processing molding. molding processing temperature degree and processing pressure generally high 一, can in high processing speed degree lower processing. can injection molding, extrusion molding, can use calendering machine processing formed sheet/plate or film, can blow molding, utilizing hot molding can manufacturing complex products.

can according to need add various material made formed different color. has production 厂家依 products use requirements, provide oil resistant type, flame retardant type, electrical stability type and can electrical coating material type and other various product grade 特殊配 combined material.

has is improvement processing properties and certain products use property can or reduce cost 时, can add certain combined agent, antioxidant, soft agent and filling agent, color agent and other. material and waste material can recycling heavy processing use. generally ratio/proportion ultra- 30％, this for property can effect/influence POE for blending system effect/influence.

POE is using/adopting metallocene catalytic agent ethylene and achieve polymerization thermoplastic property elastomer, its features is:

• 辛烯 soft/flexible 链卷曲 structure and crystallization ethylene as is material crosslinked 点, make it has excellent tough property also has good processing property.

  
  

• POE separation structure in has saturated and di 键, tool has excellent resistant aging property can.

  
  

• POE molecular weight distribution narrow, tool has relatively good flow property, and polyolefin versus property good.

  
  

• 良 good flow property can improvement filler dispersion 效果, meanwhile can improve/increase products 熔接痕 strong/high degree.

随 POE content increase, system impact strong/high degree and fracture elongation has very large improve/increase. can 见, POE for PP has excellent toughened function, and PP, active property carbon acid has relatively good versus property.

this is is POE molecular weight distribution narrow, separation structure in 侧辛基 long 于侧乙基, in separation structure in can formed 联结点, in formed separation between to 联结, function, make system in to impact dispersion, impact can function, decrease/reduce 银纹因受 force development formed cracks machine 会, from improve/increase system impact strong/high degree.

当 system to force 时, due to this 联结点 形 formed 网络状 structure can relatively large 形变, therefore, system fracture elongation has significantly increase, 当POE content increase 时, system tensile strength, flexural strength and flexural modulus has decline, this is 由POE本身 property can 决定, 故POE content control in 20% below/following.

POE content and melt flow index 关系, add 入POE rear, system melt flow index increase. POE本身 flow property relatively good, it add 入, meanwhile improvement system flow property, 当POE content ultra- 15份以 rear, system melt flow index basic has 变化, need improve/increase system flow property, can full 依赖于POE.

basic features

• POE tool has thermoplastic property elastomer generally material property, molding property, waste material again utilizing and 硫化胶 property can and other.

• price low, and versus for density small, 因而体积 price low 廉.

• heat resistant property, resistant property excellent, use scope/range wide 广.

• weather resistance, resistant aging property good.

• oil resistant property, resistant pressure shrink deformation and wear resistant consumption and other good.

application scope

main/primary used for modified toughened PP, PE and PA in automotive industrial made as 保险杠, sheet/plate, direction 盘, sheet/plate and other and other. electrical cable industrial upper heat resistant property and resistant ring property requirements high insulation and sleeve/set. used for industrial use products tube/pipe, belt/tape, and pressure products. medical devices and use electrical appliances, use product, toys and other, and packaging film and other and other.