Shanghai Daoqin Plastics Co., Ltd.

polypropylene (PP)
polypropylene (PP) most property is more property, it can combined many processing methods and applications. it value and more property main/primary excellent chemical resistant product property can, in large thermoplastic property plastics in most low density and most high melting point, in cost.
chemical and property can
polypropylene (PP) （简称PP） and polyethylene (PE) （PE） different in 于, front 者每隔一 carbon upper has 一 甲基, this to make hard function. remove non this 甲基处于链 同一侧位置 upper, polymer crystallization. in Natta and Ziegler（互 versus 独立 ） development 出立体定 toward catalytic agent front, can production soft viscous random polypropylene (PP). plastics hardness and resistant solvent small 胜源自 crystallization property. PP ratio PE hard, 因而PP has relatively high temperature degree and resistant strong/high degree, crystallization degree relatively low. PP homopolymer melting point is 330°F, 取决于 add hot speed degree and hot history.
in PP链 upper 间隔 插入 ethylene （ random copolymer ）, 链会变 more 缺乏规则 and more soft/flexible, from reduce polymer crystallization degree, modulus, melting point and melting point degree. type random copolymer is comparison transparent, melting point in 293?305°F scope/range inner. ethylene content rise high 时, polymer crystallization degree 越 越 low, most rear formed ethylene propylene 橡胶（EPR）.
另一 type important copolymer is impact resistant non versus copolymer. this product is 由橡胶（ has is PE） in homopolymer in polymerization made. use usually is EPR, it formed and homopolymer separation versus 态, formed has light 雾. semi transparent appearance. this material non true positive copolymer, is its in versus can by solvent agent 革取. use EPR and PP blending can similar product, impact resistant copolymer tool has and homopolymer material versus melting point.
molecular weight and molecular weight distribution in PP processing process in very important. in 446T and 4．75磅 negative lower melt flow is melt viscosity 一 指数, 该指数 and heavy molecular weight related. product polypropylene (PP) melt flow has low 至0．25克／10 separation to high 达800克／10 separation 钟. molecular weight distribution use heavy molecular weight and molecular weight ratio value table/sheet 示, high crystallization degree PP this ratio value can high 达11; used as 熔吹织 material PP则 can low 至2．l. this ratio value in fiber filament process in is important, but also effect/influence to pressure, extrusion material large, internal stress and toward process.
象 large more polymer 一样, polypropylene (PP) oxidation, especially is in processing process in. 就PP而论, 采取清 remove 攻击叔 hydrogen 自由基 保护 polymer. for/regarding in high temperature lower long use PP, using/adopting complex more separation stabilizer system; for/regarding made odor or 味道 场 combined, stability system must non simple. if used for anti cationic light （紫 outer 线） can add 入炭黑 or use stability methods.
普通PP resistant strong/high degree is 34．5MPa, flexural modulus is 1723MPa. has resistant strong/high degree is 100MPa, flexural modulus is 9650MPa filling grade PP. mineral filled grade PP flexural modulus can high 达约4480MPa, resistant strong/high degree increase more. in low 于一75°F时 still maintain property. resistant strong/high degree low 至18 6MPa and flexural modulus low 至689MPa impact resistant copolymer already is most 近出现 product types. polymerization reaction process can production can polypropylene (PP) and 烯烃橡胶 between 空白 材 material.
remove strong/high oxidation agent and non property solvent agent outer, PP for chemical has very strong/high resistant force. 例如, 发烟硝 acid or hot concentrated acid can make PP degradation, concentrated degree relatively low solvent liquid for PP无害. liquid 体如汽油, 二甲苯 and chlorine can make PP solvent 胀并变 soft. copolymer solvent degree ratio homopolymer high. PP from this category of solvent agent in rear, its dimensions also 会恢复原状. due to PP surface inert property large, if using/adopting 火焰处理 or similar technology, very difficult in PP upper printing, coating and bonding.
polypropylene (PP) hot very high, very difficult made formed flame retardant grade product, market upper has types grade flame retardant grade PP出售. PP also is excellent electrical insulation 体, its dielectric constant and loss consumption very low. it resistant wet property very good, is good retardant oxygen gas material.
applications
fiber is PP main/primary market. through tensile or toward, can make its resistant strong/high degree improve/increase 15倍之 more. filament product 包括衣 material, 尿布, non product. furniture 革, use bag, 线绳, 铺 织 material, belt/tape. carpet and carpet 背村. PP also can or toward tensile formed is film. toward film can as is 香烟. and many material product packaging materials; non toward film used for electrical container or packaging materials.
PP sheet/slice used for made hot molding food container, this 连同隔潮 and gas property can must combined FDA 规定. new type low modulus grade product can use calendering machine calendering, and soft ethylene resin market.
through injection blow molding method, pressure blow molding method or tensile blow molding method, can PP processing formed in products. is improve/increase blow molding and hot molding property can, already development high melt strong/high degree grade PP.
market upper has fast speed processing pressure grade PP; polypropylene (PP) electrical property can, make its combined as electrical and data cable insulation material.
many different type type injection molding parts is 由PP or it impact resistant copolymer made formed. in automotive market copolymer by used as internal and sheet/plate, external parts and battery and other; homopolymer and filling grade used for machine or as table/sheet sheet/plate.
玻璃 filler grade PP used as decoration product or device tool parts. has filler PP resin can as use product, medical device tool, one-time property property use product, main/primary use low cost homopolymer and random copolymer. thin 壁模塑 container expand large PP传统 packaging market scope/range, anti 窜改 密封 device and material device

modified polyphenylene oxide (PPO)
polystyrene (PS) can and polyphenylene oxide (PPO) 以任意 ratio/proportion mixed combined, outer add upper versus for easy product flame retardant property, make has can can production tool has material property 质, heat resistant and flame retardant property 质 材 material. has product heat deflection temperature (HDT) in 170～460°F between scope/range inner. processing methods from standards and extrusion to blow molding and structure foam 模塑. general purpose grade and flame retardant grade types grade applications 极广. for/regarding standards products, most small thick degree scope/range from 0．060 to 0．125英寸而 for/regarding structure foam parts, most small thick degree scope/range from 0．125 to 0．250英寸, its can property scope/range is from UL 94 HB to V-O.
due to this types main/primary polymer separation water property 质, large more modified polyphenylene oxide (PPO) alloy tool has low moisture absorption can force. in very wide wet degree and temperature degree conditions scope/range inner, has good electrical property can. water, large more salt solvent liquid, acid and alkali chemical 侵蚀 程 degree low. is, 暴露于一 has machine chemical product in 会引起 polymer alloy soft or cracking.
chemical and property 质
modified polyphenylene oxide (PPO) （PPO） is from 2, 6-二甲基酚 oxidation polymerization to, it is types property and non polymer, its Tg约 is 410°F. PPO can and styrene （PS） in very wide ratio/proportion scope/range inner formed alloy. PS, usually is high impact resistance PS（HIPS）, provide good melt flow 特征. is, is PS Tg约 is 220°F, it add reduce blending polymer hot deformation. PPO polymer, tool has non high Tg, increase blending polymer hot deformation. is, PPO polymer add 入导致熔 melt viscosity increase, in molding processing need difficult 一.
因 is PPO flame retardant features ratio styrene type resin good more, 引入PPO blending material through add heat resistant is additives easy make tool has flame retardant can force.
blending polymer can 进一步 use impact modifier tough property, use and fiber high rigidity, and use various filler strong/high degree, rigid degree and flame retardant property, meanwhile reduce mold shrinkage rate. use impact strong/high degree modifier can in temperature degree scope/range inner make many grade resin tool has high property. good formulation system, will type make product 悬臂梁 impact strong/high degree high 达7英尺?磅／英寸, add nano 尔落缥 impact value to 30英尺?磅. in temperature degree low 至一40°F时, material still maintain good property. use fiber to rigid degree 取决于 use fiber type type and amount. fiber is most hard, in 10％ filler 时, can make flexural modulus ultra- 4136MPa. due to 价廉而 most use, in 玻璃占 30％（wt）时, product modulus ultra- 6893MPa. material filler will PPO alloy tensile strength improve/increase to ultra- 6893MPa, make modulus degree increase. in addition, fiber and filler reduce mold shrinkage rate.
specialized grade
specialized grade 包括一 series non filling product, used for high rigidity and dimensional stability can foaming grade, used for micro food packaging can foaming grade, used for electrical and device parts can and electroplating grade, used for machine and electrical equipment structure inner parts high modulus grade, and used for and furniture blow molding grade.
基于PPO and nylon blending series product already development 起, PPO provide good heat resistant property and tough property, crystallization nylon versus oil resistant ／汽油／ solvent agent. PPO and nylon alloy wet property and wet gas increase property year-on-year nylon low more. mineral filled nylon versus ratio, PPO／ nylon alloy density more low, tough property more high, tool ／ machine abrasion loss more small. PPO／ nylon grade used as requirements coating temperature to 370°F automotive sheet/plate. this grade in automotive application in nylon, use in requirements high hot and property and hardness or dimensions stability parts in, 象车轮罩, frame, and device. PPO／ nylon grade use in requirements chemical resistant product, dimensions stability and heat resistant liquid 体处理 application in. large parts use blow molding grade resin processing or from hot molding sheet/slice made.
processing
large more 数基于 polymer blending material PPO tool has processing stability property, very large scope/range inner product can in large more 数专业 equipment upper processing. screw injection molding machine its can provide more speed and uniform hot amount ratio type equipment more 受欢迎. usually, processing temperature degree in 500 to 600°F between.
extrusion grade resin can in mono or di screw equipment upper processing. polyphenylene oxide (PPO) is sheet/slice grade can in has gas or gas equipment upper processing. extrusion sheet/slice easy true molding tool has good calendering uniform degree. blow molding grade tool has hot strong/high degree, made formed large parts. good temperature degree control, can in 几何拐点 maintain high strength.
application
automotive in use polymerization blending material main/primary internal parts table/sheet and base/seat and external parts, retardant sheet/plate, 轮子罩 and frame.
utilizing new technology, can in very wide temperature degree scope/range inner, in maintain impact and tough property meanwhile, improvement automotive internal application grade flow features. electrical and use machine is main/primary application areas. application 包括终端 equipment outer housing/shell, base/seat, CATV outer housing/shell, device tool, mixed combined device. 头发吹 dry machine and power tools. and 叶轮, and 接触流体 high temperature pipe/tube, can use 基于PPO alloy made as.
商业信息
modified polyphenylene oxide (PPO) alloy can from GE plastics company to, its product is Noryl and Prevex. it is tool has various property 质, 基于PPO series engineering hot plastics. Norvl standards grade price from ＄ 1．38 to ＄ 2．80／磅, has filler grade to ＄ 5／磅. NORYL GTX resin, types PPO／ nylon alloy, price is ＄ 1．72 to ＄ 2．70／磅.

thermoplastic property polyimide (PI)
in year 里, types new high temperature resistance thermoplastic property polyimide (PI) already achieve 商业化. thermoplastic property polyimide (PI) ratio hot solid property polyimide (PI) has advantages, most 引人注目 is tough property and hot processing and molding can force. hot solid property polyimide (PI) is chemical crosslinked, solid rear can heavy new molding （即: crosslinked ）, thermoplastic property polyimide (PI) is full reaction property polymer, has amine 基团-CONCO- as is polymer 链 一部 separation. due to thermoplastic property polyimide (PI) in processing 期间没 has chemical crosslinked, it can by again and again molding.
chemical and property can
due to ring combined to polymer in belt/tape more high heat stabilized property, 商业化 thermoplastic property polyimide (PI) 源于芳香 di amine and 芳香二酐. polyimide (PI) made usually and di amine and 芳香二酐 polycondensation function, function in combined reaction in, formed in material polyamide (PA) acid. formed polyamide (PA) acid can use in field/area upper or through hot or chemical function formed tool generally structure property thermoplastic property polyimide (PI).
aromatic thermoplastic property polyimide (PI) main/primary property is high 玻璃化 temperature degree （Tg）, significantly high temperature resistance property, tough property, good electrical property can, solid has flame retardant property and high resistant property. is, due to thermoplastic property polyimide (PI) versus for high Tg and melt viscosity, manufacturing requirements versus for high processing temperature degree. in has lower, processing temperature degree can can ultra- polyimide (PI) separation understanding temperature degree. although processing temperature degree in its hot separation understanding temperature degree above property polyimide (PI) from upper is thermoplastic property plastics, it usually by is false thermoplastic property polyimide (PI). in this type of lower, ratio most polyimide (PI) more easy solvent understanding and melt polyamide (PA) acid in material, can can in hot formed polyimide (PI) front formed film or type parts. aromatic polyimide (PI) difficult processing issues, in certain types degree upper already through in polymer in di and di amine or 两者 芳 ring between 引人如 ketone, ether and fluorine 异亚丙基基团之 type flexible to solution. improvement thermoplastic property polyimide (PI) can processing property types especially has aromatic di amine is full fluorine 异亚丙基 di amine （4一BDAF）. 4-BDAF and 芳香二配 reaction formed tool has right upper structure polyimide (PI).
from 4－BDAF to thermoplastic property polyimide (PI) ratio use amine and 芳香二配 made polyimide (PI) more easy processing, still tool has high Tg and good oxidation heat stabilized property. 4-BDAF in fluorine in 也导致 made polyimide (PI) 呈现出改良 electrical property can. its it used for thermoplastic property polyimide (PI) processing property di amine is use silicon oxygen modified di amine and 二氨基苯基1, 2一二 hydrogen 化茚.
thermoplastic property polyimide (PI) main features is it heat resistant property, this in it tool has high Tg. type Tg scope/range is: from for polyether amine 423°F, to certain has 4-BDAF polyimide (PI) ultra- 700°F.
改进 tough property polyimide (PI) hot solid property polyimide (PI) versus ratio, its elongation scope/range from 5％ improve/increase to ultra- 50％, its fracture can scope/range from 8．5 improve/increase to 14英寸?磅／平方英寸.
thermoplastic property polyimide (PI) tool has good electrical property can, its dielectric constant from separation fluorine 化 芳香 polyimide (PI) low 于2．8（1kHz） to non fluorine polyimide (PI) 3．5（1kHz）.
remove less outer, thermoplastic property polyimide (PI) can resistant large more 数普通 has machine solvent agent and dilute acid. or in alkali and hot concentrated acid in, make polyimide (PI) degradation. thermoplastic property polyimide (PI) in strong/high property has machine solvent agent in is can solvent.
product 形式
完 full amine thermoplastic property poly 哪亚胶 has types 形式. film, compression molding powder, and fiber film suitable for pressure and injection molding, lamination, electrical insulation and sleeve/set, 漆包线, electrical coating, coating and bonding agent. has full amine polyimide (PI) made general purpose type 材, can use machine processing formed various parts.
use thermoplastic polyamide (PA) in material polyamide (PA) acid made formed 清漆也 has supply, use in electronics and anti coating and long fiber use polyimide (PI) acid 漆时, requirements for coating hot amine or long fiber 缠绕预 molding 处理.
thermoplastic polyimide (PI) can made formed carbon fiber material 坯, manufacturing high grade combined formed material. hot type polyimide (PI) product in also has “ dry 式” thermoplastic belt/tape 状预浸 material and wet 式预浸 material 坯. this product is in production composite/compounding material process in, polyimide (PI) mono mixed combined material hot function is polyimide (PI) resin made formed.
processing
due to thermoplastic polyimide (PI) Tg high, therefore in processing this polymer requirements high temperature.
polyimide (PI) powder material can in in and other pressure （21 to 41MPa） lower compression molding molding. according to thermoplastic polyimide (PI) Tg, need use 500 and 845°F between temperature degree powder material. tool has in and other Tg powder material and material can by injection molding. due to tool has high melt viscosity, injection molding need 丰富 专业 Knowledge. is optimization injection molding property can, 应遵循 poly acid amine 供货商 for injection molding certain 一特殊 resin recommendation 程序.
借助传统 film technology, can from polyimide (PI) 清漆（若 can solvent understanding in certain combined solvent agent in 话）, or polyamide (PA) acid made film. use polyamide (PA) acid 清漆, to film must hot amine 化, to polyimide (PI) film. ”
usually, use melt extrusion technology, due to thermoplastic polyimide (PI) processing temperature degree high can made can film. is, use silicon oxygen di amine or ether modified di modified can separation reduce polyimide (PI) processing temperature degree, this 样, 传统 熔 melt extrusion method formed is can 行.
use polyimide (PI) or polyamide (PA) acid solvent liquid 浸透玻璃, 石英, fiber and ／ or fiber 束, remove solvent agent, add hot resin make its melt, can made combined sheet/plate. in its it combined use polyamide (PA) acid 一样, this requirements has most hot amine steps.
using/adopting compression molding and pressure technology, from “ wet 式” or “ dry 式” thermoplastic poly amine material can made high temperature resistance high grade composite/compounding material. use add solid material and use polyimide (PI) melt add hot cycle use specific polyimide (PI) 而变化. usually, requirements pressure temperature degree ultra- 600°F, pressure in 14MPa above. is to good quality, from thermoplastic polyimide (PI) material manufacturing composite/compounding material 时, from material supply recommendation processing conditions.
false thermoplastic polyimide (PI) powder material, can use powder 末冶金 technology cold molding methods made formed parts, rear in 680 to 720°F high temperature lower 烧结.
thermoplastic polyimide (PI) used for made as metal and high and other composite/compounding material anti coating and resistant retardant coating and electronics 设施 介 electrical coating. usually, use polyamide (PA) acid 清漆. using/adopting coating technology （例如: 喷, 刷, and 滚）. in drying steps rear, polyamide (PA) acid coating hot is polyimide (PI). for/regarding electronics application in requirements thin coating, use high speed coating process. 同样, if use polyamide (PA) acid 清漆, in coating process in need has most rear hot amine steps.
application
芳香 polyimide (PI) main/primary use in aviation and aerospace, 航海, automotive, electrical and electronics industry. polyimide (PI) long high temperature property can meet/satisfy this application need.
芳香 polyimide (PI) film used for electrical machine, magnetic 导线, machine and elastic and soft cable electrical insulation in. due to polyimide (PI) solid has retardant property, film used for made as machine and shipbuilding anti 火隔层. it has good resistant property, by use in application 方面 阀 base/seat, and hot insulation. use compression molding and injection molding made formed polyimide (PI) bearings use in that requirements high temperature resistance and chemical product and lubricated gas machine, device tool and office equipment upper. 模塑芳香 polyimide (PI) as is active ring use in 旋转叶 sheet/slice pressure shrink machine upper, and automotive and in small upper machine non lubricated seals upper.
use thermoplastic polyimide (PI) made high grade composite/compounding material use in gas 式发动 machine and 先进 军 use and use machine in as is grade （ structure ） and grade parts.
芳香 polyimide (PI) lamination material main/primary use in manufacturing more printing sheet/plate. it low dielectric constant, versus for relatively low thermal expansion coefficient （28 to 34 X 10-6英寸／英寸／°F） and conductive metal strong/high bonding force, make its in more requirements more high electronics applications in ring oxygen resin.
基于 thermoplastic polyimide (PI) formed coating use in for metal and high grade composite/compounding material abrasion loss and 腐蚀保护 upper. from polyimide (PI) to electrical coating use in semi 导体晶 sheet/slice and high density inner 连接（HDI） electronics equipment in.
芳香 polyimide (PI) foam use in many machine and shipbuilding upper. this tool has solid has flame retardant property low density （＜1磅／立方英尺） foam use in use ／军 use machine and 海军船 thermal insulation and 隔音.
商业信息
false hot plastics polyimide (PI) 供货商 has: DuPont company, is Kapton（ film ）, Vmpel（ type and parts ）, Pyralin and Pyre ML（漆）; Rosers company supply type and powder material, its is Envex. supply company has: Mon－santo company, is Skybond700 USA Cysnamid company, grade is FM-34, P?D?George company, is Untratherm. Albemarle Imi-Tech子 company 以商标 Solimide supply foam.
thermoplastic polyimide (PI). and powder material supply has: Rogers company, is Duramid, Ciba Geigy company, is Matrimid.
thermoplastic polyetherimide (PEI) can from GE plastics company 购, its is Ultem.
hot plastics polyamide (PA) semi solid sheet/slice has 二家供货 company, is: DuPont company, 商标名 is Avimid, USA Cyanamid company, is Cypac.

ethylene - ethylene alcohol copolymer （EVOH）
will ethylene polymer processing property and ethylene alcohol polymer retardant function versus combined, ethylene - ethylene alcohol copolymer not only performance good processing properties, but also for gas 体, odor, material, solvent agent and other 呈现出 excellent retardant function. due to ethylene combined tool has heat stabilized property, has EVOH retardant more container is full can heavy utilizing.
positive is this features, in food packaging make has EVOH retardant plastics container can many and metal container.
chemical and property can
in can utilizing polymer in, polyethylene (PE) alcohol （PVOH） gas 体渗透 rate most low. is, PVOH is water solvent property, but also difficult processing.
EVOH copolymer is this made 取: is ethylene and acid ethylene copolymer, rear is hydrolysis copolymer to ethylene - ethylene alcohol. therefore, still 然保留 high degree retardant function, but also in anti and processing properties has obvious improvement.
from property upper 说, EVOH copolymer is high degree crystallization 体, it property main/primary 取决于 its copolymer mono versus for concentrated degree. generally 说, ethylene content increase 时, gas retardant property can decline, anti property can 改进, resin more easy processing.
EVOH resin most significantly features is its for gas retardant function. it by use in packaging structure in, through anti oxygen gas improve/increase and quality 保留程 degree. in use gas packaging technology in, EVOH resin has 效 保留 use product oxidation carbon or nitrogen gas.
due to in EVOH resin separation structure in in 羟基, EVOH resin tool has hydrophilic water property and wet property. 当吸附 wet gas rear, gas retardant property can to effect/influence.
但 is, retardant in wet content can control, use more technology will polyolefin and other strong/high wet resin EVOH resin 层包裹起, can to this 一点.