Shanghai Daoqin Plastics Co., Ltd.

micro foaming polymer material is polymer material is 基体, its in has dimensions from small micron to micron more polymer material. material or chemical foaming method made foam plastics due to its relatively large, usually belongs to this 一范畴, and generally foam plastics mm grade versus ratio, micro foaming polymer need small more, 而泡孔 density need large more, 因而称 is micro foaming polymer.   development overview   upper 世纪80 year 代初, USA 麻省理工学院（MIT）首先提出 micro foaming plastics concept development versus molding technology. 提出该 concept is in polymer in a large amount of ratio polymer already in defect degree more small 空隙, from in decrease/reduce material use amount meanwhile improve/increase its rigid property, 并避免 for strong/high degree and other property can formed obvious effect/influence. this type of process made micro foaming material generally small 于10 micron, especially is density non high, to 109-1015 /cm3. micro foaming molding process can separation formed stage/phase, is will ultra- 临界流体（ main/primary is oxidation carbon and nitrogen gas ） solvent understanding to polymer in, formed polymer / gas mono versus solvent liquid; rear, through temperature degree or pressure and other conditions system hot force unstable property, make gas in solvent liquid in solvent understanding degree decline; due to gas balanced concentrated degree reduce, from in polymer in formed a large amount of bubbles 核, rear long large formed micro small 孔洞.   many is ultra- 临界流体应 used for polymer processing is 处于实验室 research, upper, this type of methods application 早就开始. 20世纪50 year 代始, ultra- 临界 ethylene already used for large manufacturing low density polyethylene (PE). 进入21世纪, Trexel company and MIT combined as, utilizing this type of technology achieve micro foaming injection molding parts 商业化 application. 据报道, Reedy国际 company development similar extrusion micro foaming plant/unit.   about/regarding polymer micro foaming molding technology already has a large amount of 文献报道, research 以无定 type and semi crystallization type polymer micro foaming material molding process is 主, polyvinyl chloride (PVC) （PVC）, polystyrene (PS) （PS）, polycarbonate (PC) （PC）, polymethyl methacrylate (PMMA) （PMMA）, polyethylene terephthalate (PET) （PET） and poly?（Polysulfone） and other. processing technology research main/primary and micro foaming extrusion, micro foaming injection molding parts, micro foaming blow molding and 旋转模塑 and other. from micro foaming technology research relatively research formed mono main/primary has USA 麻省理工学院, 威斯康辛—迈 Di large 学, 佐治亚理工 large 学, add large more more large 学, Germany GKSS research in 心, Netherlands 特文特 large and other.   development current situation  1997 year, in and MIT combined as upper, Trexel company rate 先开始 micro foaming injection molding parts molding technology industry research. its 第一台 used for research injection molding parts machine is Engel 150吨 screw and active injection molding parts machine, rear using/adopting screw injection molding parts machine. to 2000 year, Trexel company in add 哥 国际 plastics expo upper launch its micro foaming injection molding parts molding machine product. and meanwhile, many Japan, Europe and Korea and other company 也一直致 force micro foaming injection molding parts molding process development. currently 以Trexel company Mucell? is table/sheet ultra- 临界流体 made polymer micro foaming material technology already to 广泛 认 can, many world equipment and raw materials 厂商都购买 this type of technology patent use 权, 包括Arbug, Demag, Engel, Milacron, Husky, KraussMaffei, Battenfeld, Dupont, JSW, Toshiba and other company and enterprise. can 说, micro foaming injection molding parts molding technology positive in mono pure and research toward formed 熟 商 product development. tube/pipe this stage/phase will 近20 year time, this type of 商业化 development and its formed experience new processing technology in in the future need achieve industry will 变 越 越容 easy. positive micro foaming technology 创始人MIT NamP.Suh教授 说, this type of technology non is can 够节约材 material that simple, its belt/tape various will in in the future various application in 逐步体现出. this type of technology formed development, can is high and industry 界携手 combined as 典范. 实践证明, need in 一 经 严格论证 frame lower combined as, research mono and industry can from similar this combined as in 获益.   micro foaming injection molding parts molding products main features is in basic maintain products has force property can upper decrease light weight. meanwhile, due to products internal 几乎没 has 任何残馀应 force, therefore products warpage and deformation can to very good made. but also, due to can has anti shrinkage 痕, therefore for products thick uniform degree requirements large large reduce, from is products design provide more large 空间.   from upper 说, currently has non structure property plastics products and separation structure property plastics products can using/adopting micro foaming injection molding parts molding process made 备. 但考虑 to market demand and property and other factors, currently USA, Japan and other development micro foaming injection molding parts products main/primary in in automotive and internal decoration material, electronics electrical appliances product, medical grade product and other field/area, automotive gas tube/pipe, box/case, machine 罩, electrical appliances 开关, electrical appliances control block, thin container, medical grade injection device and other.   features and advantages   and injection molding parts molding products comparison   for outer has using/adopting Trexel company patent micro foaming injection molding parts molding machine analysis and related data comparison can 看出, and 常规 模塑 products versus ratio, remove 购买许 can and increase equipment investment outer, micro foaming products cost can reduce 16%-20%. this main/primary through 四 方面 achieve:  1. micro foaming injection molding parts ring cycle can decrease/reduce 50%, from reduce processing cost. meanwhile injection molding parts products lower material ratio/proportion reduce, equipment can consumption more low.  2. for/regarding same type type products, micro foaming injection molding parts process can use more small and more less machine, mold cost more low, from reduce investment cost.  3. due to micro foaming injection molding parts products density reduce, can design tool has more thin structure products, reduce products material cost.  4. due to decrease/reduce or remove 常规模塑 in clamping and holding pressure process in generate internal stress, therefore micro foaming injection molding parts can made more 平, more and dimensions degree more high products, from is products quality and price improves provide more large 空间.   and other injection molding parts molding process comparison   many other injection molding parts molding process process use or and gas or foaming agent, this process main/primary has: structure foaming injection molding parts, gas 体辅助 injection molding parts and chemical foaming molding.   micro foaming injection molding parts and structure foaming injection molding parts   structure foaming injection molding parts usually used for molding relatively large products, most Common is using/adopting low pressure injection molding parts machine processing high density polyethylene (PE) （HDPE） raw materials. its products weight decrease light can to 10% or more more. micro foaming injection molding parts in certain ratio structure foaming injection molding parts more has advantages, for/regarding large more material commonly used engineering plastics 说, its material decrease/reduce and injection molding parts ring time reduce more add 显. micro foaming injection molding parts can molding meanwhile tool has thin and thick structure, products design 方面 灵 active property more large. micro foaming injection molding parts for/regarding tool has large long thick ratio products and thick 壁（ large 于6 mm ） products 方面则没 has more advantages.   micro foaming injection molding parts and gas 体辅助 injection molding parts   gas 体辅助 injection molding parts can molding surface quality non high products, through for mold and products 进行特殊 design, in thick products internal design achieve gas 体辅助 injection molding parts. micro foaming for/regarding thick products molding has advantages, but also its products surface quality method to non 常完善.  但 gas 体辅助 injection molding parts usually used for remove products shrinkage 痕, therefore from this 方面 说, micro foaming injection molding parts can can is more good selection, can more more reduce products weight, more short ring time molding, and products warpage relatively less, meanwhile can remove shrinkage 痕.   micro foaming injection molding parts and chemical foaming molding   chemical foaming agent in temperature degree lower separation understanding generate gas foaming agent. different type type foaming agent suitable for different temperature degree lower separation understanding foaming. its usually used for thick products molding remove shrinkage 痕, meanwhile can reduce products density. for/regarding thin products use chemical foaming agent make surface quality poor 化, meanwhile reduce its force property can. but also, from property degree 出发, chemical foaming can large degree reduce density.  而 micro foaming injection molding parts advantages in 于, many hot type chemical foaming agent formed water （也 generate CO2 gas 体）, therefore need add water agent anti due to water in formed polymer melt degradation phenomenon. gas foaming agent production different make in production process in 不 不随时 adjustment production process. another, due to chemical foaming agent essence upper heat stabilized property 不佳, very difficult used for processing high temperature type resin. chemical foaming agent usually in resin in has 残留, or generate product. belt/tape has product or separation understanding chemical foaming agent resin usually make products resistant aging property can reduce, can can mold gas 孔堵塞. but also, its processing process in generate lower material very difficult recycling use.  当然, micro foaming injection molding parts molding technology non 完美无缺, for/regarding requirements transparent property strong/high and surface quality non high products, using/adopting micro foaming injection molding parts molding technology need more add heavy. mono product grade price 曲线HDPETR480 Shanghai 金菲查看 trend 图LDPEQ210 Shanghai 石化查看 trend 图LLDPE1802扬子石化查看 trend 图PPT30S茂名石化查看 trend 图HIPS660广州石化查看 trend 图PVCSG5 new in 泰查看 trend 图ABS121HLG甬兴查看 trend 图PETFR530 USA DuPont trend 图PBT3300 Polyplastics trend 图EVA18-3北京 has machine trend 图· plastics price 库近期 new increase 北京市, 常州市, 杭州市, 临沂市, Shanghai 市, 余姚市报价· plastics price day more new 1200 strip/profile product 报价, more new time is 9: 00-18: 00.查看>>>