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polyolefin elastomer (POE) for general purpose plastics modified
POE elastomer for general purpose plastics modified main/primary is research its as is toughening agent modified rigid property general purpose plastics, high rigidity general purpose plastics tough property or through blending improve/increase general purpose polyethylene (PE) (PE) property can. inner outer for PE/POE system research relatively less, 越 越 more research is about/regarding POE toughened rigid property PP 报道.
1, PE/POE system
in recent years, composite/compounding material its cost low, property can good, quality light, for processing equipment abrasion loss small and other advantages to 普遍关注. thermoplastic property plastics in filling powder rear composite/compounding material 变脆, made composite/compounding material application and 推广.
using/adopting waste powder filling high density polyethylene (PE) (HDPE) made 备木塑 composite/compounding material, using/adopting metallocene polyethylene (PE) (mPE) and POE for composite/compounding material toughened, comprehensive evaluation this types toughening agent toughened 效果. in use amount small 于12份时, toughened versus large;但 in use amount large 于12份以 rear, use POE toughened composite/compounding material impact strong/high degree and fracture elongation increase separation speed, use mPE toughened increase degree comparison 平缓;POE toughened obvious excellent 于mPE. research HDPE and POE blending material force property can and thermal properties, hot analysis table/sheet 明HDPE and POE has versus function;当POE content ≥5%时, material in room temperature lower super tough.
POE modified PE made foaming material tool has good tough property, elastic property and strong/high degree, can used for as bonding tape. will 30份含离子 structure PE and 6.5份偶 nitrogen 二甲酰 amine add to 100份含30% POE and 70% Affinity PL 1845组 formed mixed combined material in, extrusion formed sheet/slice 材, crosslinked, in 250℃ lower foaming, 1mm thick foam sheet/slice tool has good tough property, 横, direction flexural strength separation is 30.2MPa and 24.3MPa.
POE/PE composite/compounding material can made formed micro film, used for electrical container 隔离层, 尿布, 卫生巾, packaging film 隔离层 and other.
2, PP/POE system
众 周知, as is large general purpose plastics product types, poly dilute (PP)存 in low temperature tough property and 缺口敏感 property large disadvantages, therefore, is improvement PP property can upper 不足, elastomer toughened modified by is most has 效 途径. although ternary 乙丙胶(EPDM) for PP has good toughened 效果, 但EPDM price high, has 一定困 difficult, flow property 也不太理想. POE 问世, make its in used for PP toughened modified tool has elastomer method ratio advantages. POE toughened PP not only can 克服EPDM toughened PP 不足, but also also 赋予PP more high tough property, high transparency property, high property can / price ratio and other features. research 指出, and EPDM toughened PP versus ratio, is for/regarding 普通PP, copolymer PP also is high flow property PP, POE toughened 效果都 excellent 于EPDM, but also flexural modulus and tensile strength reduce small. POE in content effect/influence POE for PP toughened 效果, POE in content increase, POE crystallization degree, melting point and density reduce, property increase, for PP toughened improve/increase.
商 product POE本身呈 pellets 状, can add to PP and other its it material in modified. therefore POE ratio EPDM橡胶 modifier processing as upper more is 简便, this can large large reduce production cost. research PP/POE blending system and PP/EPDM blending system comparison. table/sheet 明, types blending system tool has versus crystallization is, its force property can versus 似, 但PP/POE blending material tool has more low 转矩, processing properties relatively good. as is PP impact modifier, POE relatively EPDM tool has obvious price, property can advantages.
research PP/POE blending system versus structure, toughened mechanism and blending system force property can. research table/sheet in same conditions lower, POE add amount ratio EPDM less, POE use amount is 20份时就 can make blending alloy achieve tough 转变. in PP/POE blending system in, POE in PP连续 versus in formed uniform “海-岛” structure;POE for PP toughened modified combined 银纹剪切 mechanism, can has improve/increase PP normal temperature, low temperature impact strong/high degree.
research POE for and other polypropylene (PP) toughened function. 当POE quality separation in 15%~25% between, blending material impact strong/high degree slow increase;继续 increase POE quality separation 数, impact strong/high degree speed increase;当 POE quality separation is 40%时, impact strong/high degree most large. structure analysis table/sheet 明, POE quality separation increase, dispersion versus dimensions increase; blending material separation function make impact strong/high degree significantly improve/increase.
3, general purpose plastics /POE/无 machine filler system
how to decrease/reduce toughening agent POE use amount reduce cost also effect/influence to toughened 效果, this is general purpose plastics /POE system research development hot and direction. in blending material in add machine or has machine filler can make products raw materials cost reduce to increase amount 目, or make products property can has obvious improvement, in recent years can in general purpose plastics /POE blending system in add machine filler 报道.
针 for recycling high density polyethylene (PE) (RHDPE) made pipe/tube ring rigid degree disadvantages, using/adopting slip powder and made modified POE(MPOE) for RHDPE进行 modified, research slip powder and MPOE use amount for blending system force property can effect/influence.
结果 table/sheet 明, 当RHDPE/MPOE/ slip powder quality ratio is 50/10/40时, system comprehensive force property can most good. slip powder use amount is 40%时, made RHDPE pipe/tube ring rigid degree ratio non modified RHDPE pipe/tube improve/increase 54%. meanwhile also research PVC/MPOE/无 machine filler system force property can, table/sheet 明: filling material in slip powder or carbon acid quality separation is 70%时, ternary composite/compounding system comprehensive property can most good.
国 inner outer for PP/ elastomer and PP/无 machine nano pellets system research, this types system performance tough property improve/increase or rigid property increase is 以牺牲 other property can is 代价, therefore, will elastomer toughened and machine nano pellets toughened reinforcement meanwhile combined 起, formed types PP/ elastomer /无 machine nano pellets more versus composite/compounding system positive formed is research new hot 点.
using/adopting alloy technology and filling composite/compounding process, made high property can PP/POE/ nano high ternary composite/compounding material. research table/sheet 明, nano high and elastomer POE for PP toughened tool has function, 呈现 并不 is 二者独立 toughened function simple add and; nano high most use amount is 5%, use electronics micro 镜(SEM)观察PP/POE(20%)/ nano high 岭土(5%) impact 断面, can to high pellets by 基体 包覆以层状 structure dispersion blending material in, interface combined solid.
research PP/POE/ nano SiO2 composite/compounding material rear 出结论: melt blending method make POE and SiO2 uniform dispersion in PP基体 in, 当PP/POE/ nano SiO2 ratio/proportion is 100 /15/4时, composite/compounding material comprehensive property can most 佳. although nano SiO2 pellets in PP in dispersion micro poly distribution, and its 本身 二次 pellets versus small 于临界粒径, therefore in to impact to absorption can amount retardant cracks expand function, from improve/increase material tough property.
for PP/ elastomer / nano CaCO3 composite/compounding material research, 发现材 material impact strong/high degree good; selection POE ratio HDPE toughened good, material tensile strength elastomer content increase large decline. electronics micro 镜(TEM)观察显示, nano CaCO3 in PP基体 in already to nano dispersion. research nano CaCO3 improvement 因POE make material hardness reduce formed 不足, tensile strength and flexural strength 都 以 improve/increase; active nano CaCO3 modified large large excellent active 化, use amount is 8份 left right reinforcement most 佳; composite/compounding material meanwhile achieve reinforcement and toughened.
PP/POE system tool has excellent comprehensive property can, already development multiple product, especially is automotive 保险杠 tool has vast market outlook/prospects. usually requirements PP保险杠 specialized material notched impact strength (normal temperature) large 于 500J/m, -40℃ notched impact strength ≥50J/m. using/adopting PP is resin, POE is toughening agent, slip powder is reinforcement filler, made property can combined requirements automotive 保险杠 specialized material. modified PP tool has ultra- high impact resistance strong/high degree, its notched impact strength high 达723J/m, tool has reinforcement soft/flexible property, excellent heat resistant, low temperature resistance and resistant aging property can. small polypropylene (PP) (PP) is material, through and polypropylene (PP) (CPP), POE, silicon 灰石以 and its it additives blending modified, made 保险杠, sheet/plate automotive specialized material. testing analysis table/sheet 明, PP/CPP/POE/ silicon blending system formulation design combined 理, process 路线, parameters positive 确. 当PP: CPP: POE: silicon quality ratio is 45~48: 26~29: 19~22: 4~6时, blending material full can meet/satisfy automotive 保险杠 property can requirements;当PP: CPP: POE: silicon quality ratio is 45~50: 27~29: 3~6: 17~20时, blending material full can meet/satisfy automotive sheet/plate property can requirements. research in 发现, POE modified PP comprehensive property can good 于传统 toughening agent; silicon 灰石也 has toughened function, separation to short fiber function.
through PP and elastomer crosslinked methods can to thermoplastic property 硫化胶(TPV), TPV in production in has very high application value. will POE grafting ethylene silicon dispersion 于PP in, blending material hydrolysis water crosslinked to TPV; TPV easy processing formed products, tool has excellent surface property can. products tool has high fracture strong/high degree and fracture elongation, wide scope/range Shore hardness, non low degree, use POE odor, can widely used in automotive field/area.
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