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基础 Knowledge: engineering plastics summary
engineering plastics types type more application 广泛, its excellent property can by use metal material. very more plastics industry in selection raw materials types type 时候, 常常因 is can positive 确 区 separation different product types plastics features 而烦恼. lower 面, will from basic property can, processing properties and applications 三方面 is detailed introduction engineering plastics product types.
普通 engineering plastics
1, polyamide (PA) PA
basic property 质
specific gravity: PA6-1.14 g/cm³, PA66-1.15 g/cm³, PA1010-1.05 g/cm³
molding shrinkage: PA6-0.8-2.5%, PA66-1.5-2.2%
molding temperature degree: 220-300℃
drying conditions: 100-110℃, 12 small 时
material material property can
坚 tough, wear resistant, oil resistant, resistant water, resistant 酶菌, water large. nylon 6 elastic property good, impact strong/high degree high, water relatively large; nylon 66 property can excellent nylon 6, strong/high degree high, wear resistance good; nylon 6 10 and nylon 66 versus 似, water small, rigid degree low; nylon 1010 semi transparent, water small, resistant property relatively good.
molding features
1, crystallization material melting point relatively high, melt temperature degree scope/range narrow, heat stabilized property 差, material temperature ultra- 300 degree, time ultra- 30min即 separation understanding. relatively easy wet, drying, water amount ultra- 0.3%;
2, flow property good, easy material. use 自锁时 nozzle, add hot;
3, molding shrinkage scope/range and shrinkage rate large, direction property obvious, easy shrink 孔, deformation and other;
4, mold temperature parts thick in 20-90 degree scope/range inner 选取, injection pressure injection machine type type, material temperature, parts dimensions, mold system 选定, molding cycle parts thick 选定. resin viscosity small 时, injection, cooling time long, use as demolding agent;
5, mold system and dimensions, increase large runner and gate dimensions can decrease/reduce sink marks.
suitable scope/range
made as generally machine parts, decrease abrasion wear resistant parts, parts, and chemical industry, electrical appliances, table/sheet and other.
2, polycarbonate (PC) PC
basic property 质
specific gravity: 1.18-1.20 g/cm³
molding shrinkage: 0.5-0.8%
molding temperature degree: 230-320℃
drying conditions: 110-120℃, 8 small 时
material material property can
impact strong/high degree high, dimensional stability good, color transparent, color property good, electrical insulation property, corrosion resistant property, wear resistance good, lubricated property 差, has force cracking toward, high temperature easy hydrolysis, and its it resin versus solvent property 差.
molding features
1, 无定形 material, heat stabilized property good, molding temperature degree scope/range wide, flow property 差. wet small, for water 敏感, must drying 处理. molding shrinkage small, easy 发生熔 melt cracking and force in, 故应严格 control molding conditions, parts must 经退火处理;
2, melt temperature degree high, viscosity high, large 于200g parts use add hot 式 延伸 nozzle;
3, cooling speed degree fast, mold system coarse, short is 原则, cold material 井, gate large, mold add hot;
4, material temperature low formed material, parts gloss, material temperature high easy 溢边, parts 起泡. mold temperature low shrinkage rate, elongation, impact resistant strong/high degree high, resistant 弯, resistant pressure, resistant strong/high degree low. mold temperature ultra- 120 degree parts cooling slow, easy deformation mold sticking.
suitable scope/range
made as table/sheet small parts, insulation transparent parts and resistant impact parts.
3, polyoxymethylene (POM) POM
basic property 质
specific gravity: 1.41-1.43 g/cm³
molding shrinkage: 1.2-3.0%
molding temperature degree: 170-200℃
drying conditions: 80-90℃, 2 small 时
material material property can
comprehensive property can relatively good, strong/high degree, rigid degree high, decrease abrasion wear resistance good, water small, dimensional stability good, heat stabilized property 差, easy 燃烧, in large gas in easy aging.
molding features
1, crystallization material, melt scope/range narrow, melt and solid fast, material temperature low melt temperature degree 即发生 crystallization. flow property in and other. wet small, can drying 处理;
2, friction coefficient low, elastic property good, parts surface easy generate 皱纹花样 surface defects;
3, easy separation understanding, separation understanding temperature degree is 240 degree. separation understanding has property and property gas 体发生. mold 钢材宜 selection corrosion resistant property material made.
suitable scope/range
made as decrease abrasion wear resistant parts, parts, and chemical industry, table/sheet and other parts.
4, polyphenylene oxide (PPO) PPO
basic property 质
specific gravity: 1.07 g/cm³
molding shrinkage: 0.3-0.8%
molding temperature degree: 260-290℃
drying conditions: 130℃, 4 small 时
material material property can
1, is white pellets. comprehensive property can good, can in 120 degree in use, electrical insulation property good, water small, has force cracking toward. modified polyphenylene oxide (PPO) can remove force cracking;
2, has electrical insulation property and resistant water property excellent, dimensional stability good. its electrical property can plastics 首位;
3, MPPO is PPO and HIPS blending made modified material, currently upper material is types material;
4, has relatively high heat resistant property, 玻璃化 temperature degree 211 degree, melting point 268 degree, add hot 至330 degree has separation understanding toward, PPO content high its heat resistant property good, heat deflection temperature (HDT) can 达190 degree;
5, flame retardant property good, tool has property, and HIPS mixed combined rear tool has in and other can property. light, can used for food and material industry. lightfast property 差, long time in cationic light lower use color;
6, can and ABS, HDPE, PPS, PA, HIPS, glass fiber and other blending modified 处理.
molding features
1, non crystallization material, wet small;
2, flow property 差, is similar 牛顿流体, viscosity for temperature degree comparison 敏感, products thick degree generally in 0.8mm above. easy separation understanding, separation understanding generate gas 体. 宜严格 control molding temperature degree, mold add hot, system for material retardant force small;
3, polyphenylene oxide (PPO) water absorption very low 0.06% left right, micro amount water separation 会导致 product surface silver streaks and other light slip phenomenon, most good is as drying 处理, temperature degree can high 出150 degree, color 会变化;
4, polyphenylene oxide (PPO) molding temperature degree is 280-330 degree, modified polyphenylene oxide (PPO) molding temperature degree is 260-285 degree.
suitable scope/range
made as heat resistant parts, insulation parts, decrease abrasion wear resistant parts, parts, medical and electronics parts; can as relatively high temperature degree lower use gears, 风叶, and other parts, can 代替不锈钢 use; can made as filament, solid parts and parts; electrical machine, 转子, machine housing/shell, pressure device electrical appliances parts.
5, thermoplastic polyester
polyethylene terephthalate (PET) PET
basic property 质
以 front large more used as fiber, 即涤纶 fiber, in toward engineering plastics, packaging plastics 方面迅 speed development. according to applications different, PET can separation is fiber grade, film grade, bottle grade and reinforcement and other.
material material property can
1, is color transparent or white semi transparent solid 体;
2, tool has relatively high tensile strength, rigid degree and hardness, has 一定 柔顺 property, good wear resistance, creep resistance, can in relatively wide temperature degree scope/range inner maintain this good force property can;
3, tool has excellent electrical insulation property;
4, tool has excellent weather resistance, in outer 暴露六 year, its force property can still can maintain 初始 80%;
5, resistant low acid, for has machine solvent agent and type has good chemical stability property.
suitable scope/range
1, made as film, light film, electrical sheet/slice sheet/slice 基, versus sheet/slice film;
2, as is food, product, textile product, precision device, electrical appliances parts and other packaging, its made as in container strong/high degree high, transparent property good, 无毒无味, is carbon acid material, 啤酒, use and other application plastics packaging materials; electrical material;
3, used for made as various electrical appliances insulation material, electrical 线, 开关, electrical appliances outer housing/shell and other.
polybutylene terephthalate (PBT) PBT
basic property 质
as is engineering plastics use PBT has modified and modified types, modified product grade molding shrinkage large, mechanical properties and other engineering plastics, therefore very less mono use. 近80% PBT都 is modified.
material material property can
1, is white crystallization solid 体, 无味, 无臭, 无毒, products surface has gloss. property ratio PET good 一, melt temperature degree and rigid property versus for small 一点;
2, tool has excellent electrical insulation property. make in wet and poor ring in can maintain;
3, has relatively good weather resistance;
4, can generally chemical product 腐蚀, low acid and other.
suitable scope/range
1, made as various automotive parts, 如门 手, 保险杠, rear outer housing/shell and other;
2, made as electronics electrical parts, connectors, base/seat, 插头, filament box/case and other;
3, made as various electrical appliances outer housing/shell and parts, electrical machine, inner outer lighting use tool outer housing/shell, electrical 吹风组 parts and other.
6, ultra-high molecular weight polyethylene (PE) UHMWHPE
basic property 质
versus for separation quality ultra- 150万, comprehensive property can is molecular weight polyethylene (PE) tool specialty engineering plastics. separation structure and polyethylene (PE) full same, is molecular weight especially high. in versus for separation quality 150万 above UHMWPE in, also has versus for separation quality 200万, 300万, high 达500万 above product grade.
material material property can
1, molecular weight 约35万~800万, molecular weight high tool has its it plastics can ratio excellent resistant impact, wear resistant loss, lubricated property, chemical resistant and other property can;
2, low temperature resistance property can excellent, in -40℃时 still tool has relatively high impact strong/high degree, can in -269℃ lower use;
3, tool has electrical insulation property, low water property and inert property;
4, tool has excellent resistant force cracking property, resistant creep property and resistant fatigue property.
suitable scope/range
used for machine 械, 运输, textile, 造纸, 矿业, 农业, chemical industry and sports equipment and other field/area, its in large type packaging container and pipeline application most is 广泛; also its excellent inert property, already as is 心脏瓣 film, outer parts, 人工关节 and other in 临床医学 upper use.
7, thermoplastic property plastics
poly acrylonitrile-butadiene-styrene (ABS) ABS
basic property 质
specific gravity: 1.05 g/cm³
molding shrinkage: 0.4-0.7%
molding temperature degree: 200-240℃
drying conditions: 80-90℃, 2 small 时
material material property can
1, comprehensive property can relatively good, impact strong/high degree relatively high, chemical stability property, electrical property can good;
2, and 372 has machine 玻璃 熔接 property good, can made formed di color parts, can surface 镀铬, 喷漆处理;
3, has high impact resistance, high heat resistant, flame retardant, reinforcement, transparent and other grade 别;
4, flow property ratio HIPS差一点, ratio PMMA, PC and other good, flexibility property good.
molding features
1, 无定形 material, flow property in and other, wet large, must separation drying, surface requirements gloss parts must long time preheating drying 80-90 degree, 3 small 时;
2, high material temperature, high mold temperature, material temperature high easy separation understanding (separation understanding temperature degree is >270 degree), for degree relatively high parts, mold temperature 宜取50-60 degree, for high gloss, heat resistant parts, mold temperature 宜取60-80 degree;
3, solution water 纹, improve/increase material flow property, high material temperature, high mold temperature, or 者改变入 water and other methods;
4, formed heat resistant grade or flame retardant grade material, production 3-7天 rear mold surface 会残存 plastics separation understanding material, mold surface 发亮, for mold and 时进行清理, meanwhile mold surface increase gas 位置.
suitable scope/range
made as generally machine parts, decrease abrasion wear resistant parts, parts and electrical parts.
specialty engineering plastics
8, polyphenylene sulfide (PPS) PPS
basic property 质
specific gravity: 1.36 g/cm³
molding shrinkage: 0.7%
molding temperature degree: 300-330℃
material material property can
1, electrical insulation property (especially high frequency insulation property) excellent 良, white, hard 而脆, 跌落于 upper has metal 响声, light transmittance 仅次于 has machine 玻璃, color property resistant water property, chemical stability property good. has excellent flame retardant property, is plastics;
2, strong/high degree generally, rigid property very good, 但质脆, easy generate force 脆裂;不 resistant 苯, and other has machine solvent agent; long use temperature degree can 达260 degree, in 400 degree gas or nitrogen gas in maintain stability. through add glass fiber or its it reinforcement material modified rear, can make impact strong/high degree large is improve/increase, heat resistant property and its it mechanical properties has improve/increase, density increase to 1.6-1.9 g/cm³, molding shrinkage relatively small to 0.15-0.25%.
molding features
1, 无定形 material, wet small, drying rear molding;
2, flow property 介于ABS and PC between, solid fast, shrinkage small, easy separation understanding, selection relatively high injection pressure and injection speed degree. mold temperature 取100-150 degree. runner degree large, runner short.
suitable scope/range
made as heat resistant parts, insulation parts and chemical device, optical device and other parts. 如: electrical machine, electrical upper high pressure parts, outer housing/shell, electrical machine 起动线圈, sheet/slice, electrical 刷托架 and insulation parts, electrical appliances, electrical 熨斗, F grade film and other. automotive can made as gas again ring and water 泵叶轮, bearings, 传感部 parts and other.
9, polysulfone (PSU) PSF or PSU
basic property 质
specific gravity: 1.25-1.35 g/cm³
molding shrinkage: 0.5-0.7%
molding temperature degree: 290-350℃
drying conditions: 130-150℃, small 时
material material property can
1, polysulfone (PSU) is transparent solid material, hardness and impact strong/high degree high, 无毒, heat resistant resistant property resistant aging property good, can in -100--175 degree lower long use. resistant machine acid alkali salt 腐蚀, resistant 芳香烃 and 卤化;
2, through glass fiber reinforcement modified can make material wear resistance large degree improve/increase;
3, can will polysulfone (PSU) and ABS, poly 酰亚氨, polyether ether ketone and fluorine plastics and other made formed polysulfone (PSU) modified product, main/primary is improve/increase its impact strong/high degree and elongation, resistant solvent agent property, resistant ring property can, processing properties and can electroplating property. 如PSF/PBT, PSF/ABS, PSF+矿 material powder.
molding features
1, 无定形 material, wet large, water absorption 0.2%-0.4%, use front must separation drying, anti again wet. ensure water amount in 0.1% below/following;
2, molding property can and PC versus 似, heat stabilized property 差, 360 degree 时开始出现 separation understanding;
3, flow property 差, cooling fast, use high temperature high pressure molding. mold has strong/high degree and rigid degree, cold material 井, runner short, gate dimensions parts thick 1/2-1/3;
4, is decrease small injection molding products generate internal stress, mold temperature degree control in 100-140 degree. molding rear can 采取退火处理甘油浴退火处理, 160 degree, 1-5 separation 钟; or 采取空 gas 浴160 degree, 1-4 small 时. time 取决于 products large small and thick;
5, polysulfone (PSU) in melt lower 接近于牛顿体, similar poly carbon acid 脂, flow property for temperature degree comparison 敏感, in 310 degree -420 degree inner, temperature degree rise high 30 degree, flow property increase 1倍. molding main/primary through improve/increase temperature degree improvement processing flow property.
suitable scope/range
1, made as heat resistant parts, insulation parts, decrease abrasion wear resistant parts, device table/sheet parts and medical devices parts, suitable for made as low temperature as parts;
2, polysulfone (PSU) in electronics electrical appliances industrial used for manufacturing formed sheet/plate, tube/pipe 架, device, sleeve/set 架, electrical film, high property can alkali battery outer housing/shell;
3, polysulfone (PSU) in use electrical appliances used for micro 波烤炉 equipment, add hot device, wet lubricating device, machine, dry machine, material and food separation device and other. can has color metal used for table/sheet, machine, versus machine and other precision structural parts;
4, polysulfone (PSU) already through USA 医药, food field/area has specification, can 代替不锈钢 products, used as 手术工 tool 盘, device, control device, 心脏阀, device, anti tool, and other.
10, fluorine plastics
fluorine plastics is separation or full hydrogen by fluorine 取代 链烷烃 polymer, it has PTFE (PTFE), full fluorine ethylene propylene (FEP) copolymer, poly full fluorine oxygen 基(PFA) resin, poly fluorine chlorine ethylene (PCTFF), ethylene fluorine chlorine ethylene copolymer (ECTFE), ethylene fluorine ethylene (ETFE) copolymer, poly fluorine ethylene (PVDF) and poly fluorine ethylene (PVF).
PTFE PTFE
basic property 质
specific gravity: 2.1-2.2 g/cm³
molding shrinkage: 3.1-7.7%
molding temperature degree: 330-380℃
material material property can
1, long use temperature degree -200--260 degree, has chemical resistant property, for has chemical product corrosion resistant, friction coefficient in plastics in most low, also has very good electrical property can, its electrical insulation property temperature degree effect/influence, has “ plastics 王”之称;
2, transparent or semi transparent 状态, crystallization degree high, transparent property 越差. raw materials more is powder resin or concentrated shrink dispersion liquid, tool has high molecular weight, is high crystallization degree thermoplastic property polymer.
molding features
1, crystallization material, wet small;
2, flow property 差, easy separation understanding, separation understanding generate gas 体. 宜严格 control molding temperature degree, mold add hot, system for material retardant force small;
3, powder resin using/adopting powder powder 末冶金 method molding, use methods. temperature degree 360-380 degree, can ultra- 475 degree. emulsion resin commonly used cold extrusion again process processing, can in material product surface formed anti 腐层. requirements products transparent property, tough property good, 应采取 fast speed cooling. can 采取挤 pressure molding, can extrusion tube/pipe, rod, type 材;
4, PTFE melt viscosity very high, viscosity 随剪切应 force increase large decrease small, its non 牛顿流体 features;
5, processing, can hot pressure composite/compounding, welding, adhesion, reinforcement, machine processing and other, made most product.
suitable scope/range
made as corrosion resistant parts, decrease abrasion wear resistant parts, seals, insulation parts and medical devices parts.
PTFE - ethylene copolymer ETFE
basic property 质
specific gravity: 1.7 g/cm³
molding shrinkage: 3.1-7.7%
molding temperature degree: 300-330℃
material material property can
1, long use temperature degree -80--220 degree, has chemical resistant property, for has chemical product corrosion resistant, friction coefficient in plastics in most low, also has very good electrical property can, its electrical insulation property temperature degree effect/influence, has “ plastics 王”之称;
2, its chemical resistant product property and PTFE versus 似, ratio fluorine ethylene good;
3, its resistant creep property and pressure shrink strong/high degree ratio PTFE good, tensile strength high, elongation can 达100-300%, electrical property good, resistant property can excellent.
molding features
1, crystallization material, wet small. can using/adopting usually thermoplastic property plastics processing methods processing formed products;
2, flow property 差, easy separation understanding, separation understanding generate gas 体. 宜严格 control molding temperature degree need ultra- 350 degree, mold add hot 至100-150 degree, system for material retardant force small. can molding 0.7-0.8mm thick thin simple products;
3, transparent material, injection molding, extrusion molding. molding temperature degree 300-330 degree, 350 degree above easy 引起变 color or bubbles. high speed low pressure molding, attention/notes demolding relatively difficult.
suitable scope/range
1, made as corrosion resistant parts, decrease abrasion wear resistant parts, seals, insulation parts and medical devices parts;
2, electrical 线, cable insulation 层, anti equipment, 密封材 material, 泵阀衬 sleeve/set, and chemical container.
10, can solvent property PTFE PFA
basic property 质
specific gravity: 2.13-2.167 g/cm³
molding shrinkage: 3.1-7.7%
molding temperature degree: 350-400℃
material material property can
1, is a small amount of full fluorine full fluorine ethylene ether and PTFE copolymer. melt adhesion property reinforcement, solvent viscosity decline, property can and PTFE versus ratio 无变化. types resin can using/adopting thermoplastic property molding methods processing formed products;
2, long use temperature degree -80--260 degree, has chemical resistant property, for has chemical product corrosion resistant, friction coefficient in plastics in most low, also has very good electrical property can, its electrical insulation property temperature degree effect/influence, has “ plastics 王”之称;
3, its chemical resistant product property and PTFE versus 似, ratio fluorine ethylene good;
4, its resistant creep property and pressure shrink strong/high degree ratio PTFE good, tensile strength high, elongation can 达100-300%. electrical property good, resistant property can excellent. flame retardant property 达V0 grade.
molding features
1, crystallization material, wet small. can using/adopting usually thermoplastic property plastics processing methods processing formed products;
2, flow property 差, easy separation understanding, separation understanding generate gas 体. 宜严格 control molding temperature degree need ultra- 475 degree, mold add hot 至150-200 degree, system for material retardant force small;
3, transparent material, injection molding, extrusion molding. molding temperature degree 350-400 degree, 475 degree above easy 引起变 color or bubbles. attention/notes demolding relatively difficult;
4, melt material for metal has function, long production, mold need electroplating 铬处理.
suitable scope/range
1, made as corrosion resistant parts, decrease abrasion wear resistant parts, seals, insulation parts and medical devices parts;
2, high temperature electrical 线, cable insulation 层, anti equipment, 密封材 material, 泵阀衬 sleeve/set, and chemical container.
11, poly ether ketone PEAK
poly ether ketone (PEAK) is type 亚苯基 ring through ether and 羰基连接而 formed polymer. currently main/primary has polyether ether ketone (PEEK), polyether ketone (PEK), polyether ketone ketone (PEKK), polyether ether ketone ketone (PEEKK) and polyether ketone ether ketone ketone (PEKEKK) and other product types. poly ether ketone series product types in, separation in ether and ketone ratio/proportion (E/K)越 low, its melting point and 玻璃化 temperature degree high. poly ether ketone separation structure in ether also make its tool has flexible, therefore can use thermoplastic property engineering plastics processing methods molding processing.
material material property can
1, tool has good high temperature property can, can long use temperature degree in 240℃ above;
2, mechanical properties high. chemical resistant property good, also has good resistant property, can resistant 10MGy γ射线照射;
3, property can can to UL 94V-0 grade water 平, but also 燃烧时候发烟 amount less 且无毒, 燃烧时释放 hot amount is very less, this for machine internal trim parts is very important technology property can;
4, in very wide as temperature degree and frequency rate scope/range inner tool has good electrical property can, high lower dielectric loss small, is excellent high temperature resistance, high strength C grade electrical insulation material.
suitable scope/range
1, more used for and high technology field/area, or technology requirements comparison automotive industrial, electronics electrical industrial and machine industrial structure parts;
2, used for machine upper resistant 燃, oil resistant various connectors; weather resistant, resistant creep 天线罩 and other;
3, used for automotive industrial and machine industrial in various can 承受动态载荷 部 parts, bearings maintain device, gears, hot water 泵, 涡轮叶 sheet/slice, wear resistant ring and other;
4, in medical devices in, PPEK manufacturing liquid machine in add hot device and pressure device outer housing/shell and need 消毒杀菌 牙科 device 械, PPEK also can substitute/replace metal, made as 人体骨骼, in application outlook/prospects separation 诱人.
12, poly ester PAR
basic property 质
specific gravity: 1.2-1.26 g/cm³
molding shrinkage: 0.8%
formed type temperature degree: 300-350℃
drying conditions: 100~120℃, 5 small 时
material material property can
1, is transparent 无定形 thermoplastic property engineering plastics, tool has excellent heat resistant property, flame retardant property and property. can using/adopting thermoplastic property molding methods processing formed products;
2, tool has excellent thermal properties, in 1.86MPA negative lower, its heat deflection temperature (HDT) high 达175 degree, separation understanding temperature degree is 443 degree. its various force property can temperature degree effect/influence relatively small.
molding features
1, products thick increase, molding shrinkage increase large;
2, wet property relatively small, 约0.1-0.3%, injection molding micro amount water separation 会引起 poly separation understanding. material molding front must drying. make its moisture content small 于0.02%;
suitable scope/range
1, made as heat resistant, resistant and dimensional stability high electrical appliances parts. connectors, 线圈架, electrical appliances outer housing/shell;
2, lighting parts. can made formed transparent lamp covers, lighting device, automotive light and other.
13, liquid type polymer LCP
liquid crystal polymer (LCP) is in conditions lower can formed liquid polymer/macromolecule material, 简称LCP, is in recent years development most fast new type material 之一. can separation is solvent type (LLCP) and hot type (TLCP)两 type. hot type liquid in melt can liquid 晶状态, as is engineering plastics application main/primary is this type. resistant temperature and other grade large can separation is super heat resistant type, in heat resistant type, low heat resistant type types.
material material property 质
1, LCP is high strength, high modulus, resistant creep, resistant high impact polymer/macromolecule material, its force property can high 于普通 engineering material;
2, wear resistance 突出, surface hardness high, abrasion consumption amount very low. molding shrinkage small, processing flow property good. heat stabilized property and heat resistant property very high. electrical insulation property excellent 良;
3, tool has excellent chemical stability property, for outer 线辐射也 very stability. has flame retardant property, generally 无需添 add flame retardant can to UL 94V-0 grade flame retardant water 平, property non low;
4, also tool has excellent absorption features, used as 音响部 parts can decrease/reduce 噪声.
suitable scope/range
1, high density connectors, 线圈架, 线轴, base/seat and other;视听 plant/unit in device sheet/plate, machine 开关; office equipment in soft 盘, hard 盘驱动 device, parts and other parts;
2, in chemical industrial, used for various plant/unit and parts. 如精馏塔 filler, 阀门, equipment and other;
3, in aerospace, aviation, industrial and other 尖端科技 field/area, has application outlook/prospects. utilizing its high temperature resistance, flame retardant, low amount features, can used for machine internal various parts;
4, used for medical devices tool has advantages. due to LCP材 material outer 科手术 device 械侵袭 property very low, will formed is micro type technology 主宰;
5, LCP other used for micro 波炉灶 container, packaging materials, device and other.
14, polyimide (PI) PI
polyimide (PI), 简称PI, is most 早出现 high temperature resistance, high strength specialty engineering plastics. in heat resistant property engineering plastics in has its important 位, is separation 子主链 in has amine group ring polymer 总称. already industrial production tool product types main/primary has type polyimide (PI), polyamide (PA) amine (PAI), polyetherimide (PEI) (PEI) and di 马 酰亚 amine (BMI).
material material property can
1, force property can excellent, tensile strength high, creep resistance, wear resistant consumption property separation excellent 良;
2, heat resistant property excellent 良, long use temperature degree in 200℃ above. low temperature resistance property non 常突出, in -269℃ low temperature lower also can maintain force strong/high degree;
3, is flame retardant property polymer, 燃烧烟雾 density low, has gas content small;
4, resistant property can excellent 良, resistant electrical property excellent other engineering plastics.
suitable scope/range
飞 machine machine parts, machine internal structural parts and other; high strength and dimensional stability use industrial and use base/seat, electronics table/sheet and use electrical appliances high property can as parts;发动 machine active 塞, 连杆, speed gears and other high temperature resistance precision parts. also manufacturing more 次消毒 medical grade device 皿, medical devices, and need in low temperature, and liquid nitrogen 接触 一 工 as parts.
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