Shanghai Daoqin Plastics Co., Ltd.

         polypropylene (PP) due to its modulus small, 缺口敏感 property strong/high, impact strong/high degree low, especially is low temperature and high speed rate lower impact strong/high degree low, as is engineering plastics application to made. usually increase PP tough property is through add elastomer, elastomer add 入往往 make PP tough property increase meanwhile other property can reduce, rigid degree, hardness and other, 因而人们尝试 use machine filler increase PP force property can. add machine filler can improve/increase material more force property can and hot force property can, rigid degree, resistant creep property, heat deflection temperature (HDT), shrinkage rate and other, 但另一方面, machine filler in make material tensile strength and tough property reduce.

        无 machine filler for material force property can effect/influence main/primary 依赖于无 machine rigid property pellets 形状, large small, pellets poly large small, pellets surface and polymer property can. lower small will introduction commonly used machine filler in reinforcement toughened polymer in application.

         carbon acid in reinforcement toughened polypropylene (PP) in application

         carbon acid product separation is heavy carbon acid and light carbon acid 钙.

         heavy carbon acid 钙简称 heavy 钙, 英文简称 is GCC, is use machine methods powder 碎天然 方 understanding 石, 石灰石, 白至, housing/shell and other made. due to heavy carbon acid 钙 沉 drop ratio light carbon acid 钙 沉 drop small, therefore is heavy carbon acid 钙. currently industrial production heavy carbon acid main/primary has types process, types is dry method, types is wet method. dry method process and wet method versus ratio can production cost relatively low, applications product.

         light carbon acid 钙简称 light 钙, also 称沉淀 carbon acid 钙, 英文简称 is PCC, is will 石灰石 and other raw materials 锻烧生 formed main/primary formed separation is oxidation and oxidation carbon, again add water 消化石灰生 formed 石灰乳 main/primary formed separation is hydrogen oxidation 钙, rear again 通入二 oxidation carbon carbon 化石灰乳生 formed carbon acid 钙沉淀, most rear water, drying and powder made. or use carbon acid and chlorine 化钙进行复 separation understanding reaction formed carbon acid 钙沉淀, rear water, drying and powder made.

         carbon acid is most by used for filling reinforcement toughened PP machine filler 之一, 且一直以, micron grade carbon acid application 都处于主导 位. research table/sheet 明, carbon acid add can make PP impact strong/high degree rise high, tensile strength reduce, light carbon acid add can meanwhile improve/increase impact strong/high degree and strong/high degree, and use hard acid PCC效果 more good, use titanium acid ester coupling agent carbon acid can significantly improve/increase PP impact strong/high degree.

        随 nano grade carbon acid 钙 出现, 人们发现, use nano carbon acid can meanwhile reinforcement toughened, toughened ratio micron grade carbon acid more good. research table/sheet 明, nano carbon acid 钙 形态 different, composite/compounding material force property can large 不一样. 立方形 nano carbon acid has improvement composite/compounding material impact property can, fiber nano carbon acid can obvious improvement material tensile property can, nano carbon acid can make PP球晶 obvious fine 化, can promote β晶 type formed.

         glass beads in reinforcement toughened polypropylene (PP) in application

         glass beads is types new type silicon acid salt material, 包括实心 and 空心两 types. usually will is 0.5-5mm 玻璃珠称 is fine 珠, in 0.4mm below/following is micro 珠; micro according to different has multiple, powder glass beads is powder in 提取出 一 types light micro type material 质, it main/primary formed separation is oxidation silicon, also has multiple metal oxidation material, powder glass beads has high temperature resistance, thermal conductivity small and other advantages, used for filling plastics not only can increase material wear resistant, resistant pressure, flame retardant and other property can, but also, it 特殊 球形 surface also can improve/increase material processing flow property, another, it surface gloss degree good, can increase products surface gloss, decrease/reduce surface 污垢吸附.

         glass beads (GB) by used for PP reinforcement toughened. research table/sheet 明, GB use amount increase, mono, di screw extrusion PP/GB composite/compounding material tensile modulus, flexural strength and modulus 均呈线 property growth trend, 而屈服 strong/high degree has small decline; fracture in low content has improve/increase, rear speed decline, mono, di screw extrusion material impact strong/high degree has improve/increase, in scope/range inner 随GB use amount increase increase large, mono screw extrusion material impact strong/high degree high di screw extrusion material, GB粒径 for PP/GB composite/compounding material tough property has relatively large effect/influence.

         silicon acid salt material in reinforcement toughened polypropylene (PP) in application

         currently, application and research most is silicon acid salt material has slip powder, 蒙脱土, silicon and other, its in rod 石, 沸石也受 to relatively more 关注.

         slip powder and 蒙脱土(MMT)均 is silicon acid salt material. slip powder is sheet/slice structure silicon acid salt type material, usually its degree fine dispersion 效果越 good, can improve/increase material heat deflection temperature (HDT) and surface light degree;MMT层间距 relatively large, using/adopting method made 备PP composite/compounding material, MMT in PP基体 inner can formed good structure, from improve/increase PP impact resistant and dimensional stability.

        凹凸 rod 石(ATP) is 链层状 silicon acid salt. ATP is types 天然一维 nano material silicon acid salt material, its basic structure mono is or short fiber mono 晶体, ATP can in micron filling and nano reinforcement water upper and polypropylene (PP) composite/compounding, improve/increase material force property can. this type of new type viscous short fiber generally glass fiber reinforcement resin flow property 差, appearance coarse 糙, for processing equipment abrasion loss heavy and other disadvantages, 因而拥 has relatively high development value.

         silicon is mono silicon acid salt material, usually sheet/slice 状, 放射状 or fiber combined 体. research table/sheet 明, silicon filling plastics can improve/increase its force property can, but also can glass fiber use, decrease/reduce cost, filling amount increase, composite/compounding material hardness large, for processing equipment abrasion loss relatively heavy.

        沸石 is silicon acid salt material. it has 丰富 孔道 structure, can through or negative function pellets, made function property relatively strong/high polypropylene (PP) composite/compounding material, improve/increase product add value. therefore development PP/沸石 function property composite/compounding material tool force, formed is currently research and hot 点.

         titanium powder in reinforcement toughened polypropylene (PP) in application

         titanium powder chemical formed separation is oxidation titanium, has 金红石 type and titanium type, 金红石 type is most stability crystallization 形态, structure 致密, hardness, weather resistance and resistant powder property and other excellent titanium type, for large gas in various chemical material stability, solvent water, heat resistant property good. titanium powder add rear not only can improve/increase product degree, also can decrease/reduce outer 线 破 bad function, can improve/increase polypropylene (PP) light aging property can, also can improve/increase products rigid property, hardness and wear resistance, its and PP versus property relatively 差, for its increase modified separation necessary.

         summary

         in recent years, polypropylene (PP) /无 machine rigid property pellets composite/compounding material 越 越 by 青睐, is its comprehensive property can 进一步 improve/increase and application areas expand large new 途径. currently, how to has promote machine rigid property pellets in composite/compounding system in dispersion and machine rigid property pellets and 基体 结 combined, still is modified focus/key point, 而建立 polypropylene (PP) machine rigid property pellets composite/compounding material micro structure type, for composite/compounding system interface separation design, through machine rigid property pellets and polymer surface material chemical modified, interface compatibilizer combined formed, 确定适宜 processing process, achieve design interface separation structure, from achieve material property can has adjustment is can direction. 随 科学 technology development, polypropylene (PP) machine rigid property pellets composite/compounding material made methods will to 进一步 完善, property can to improve/increase, high rigidity, high toughness polypropylene (PP) machine rigid property pellets composite/compounding material industrial application, will is general purpose plastics engineering 化做出 important 贡献.