Shanghai Daoqin Plastics Co., Ltd.

  polyamide (PA) fiber nylon （Nylon）, 英文名称Polyamide（简称PA）, density 1.15g/cm3, is separation 子主链 upper has heavy amine 基团—[NHCO]— thermoplastic property resin 总称, aliphatic PA, 脂肪— aromatic PA and aromatic PA. its in aliphatic PA product types more, output/production volume large, application 广泛, its 命名由 combined formed mono specific carbon 原子数而定.

nylon development history:

1931 year: DuPont company 卡罗泽斯 development nylon -66, formed is most industrial engineering plastics, 并于1939 year DuPont company production.

1942 year: Germany development nylon -6 industrial technology, as is fiber development application.

1961 year: China development PA1010.

1972 year: DuPont company development aromatic nylon industrial technology.

一, nylon 诞生记

本世纪初, enterprise 界搞基础科学 research also by is is types can 思议 事情. 1926 year, USA most large industrial company － DuPont company 董事斯蒂恩出于 for 基础科学 兴趣, has 关发现 new 科学事实 基础 research.

1927 year DuPont 决定每 year 支付25 10,000 USD as is research use, 并开始聘请 chemical research 人员, to 1928 year DuPont company in 特拉华州威尔明顿 总部 in formed 立 基础 chemical research, year 仅32岁 卡罗瑟斯（Wallace H. Carothers,1896～1937)博士受聘担任该 has machine chemical negative 责人.

华莱士·卡罗瑟斯

卡罗瑟斯 想 method is high poly material fiber, it material melting point must high to 足以经受住 positive use, meanwhile also low to 足以进行处理 and amount textile. 一开始卡罗瑟斯 selection binary alcohol and binary acid reaction, through this by 人熟知 reaction understanding has machine separation structure and its property 质间 关系. in polycondensation reaction in, to molecular weight is 5000 polyester separation 子. is 进一步 improve/increase polymerization degree, 卡罗瑟斯改进 high true 空蒸馏 device 并严格 control reaction ratio, make reaction very full, in to year time make polymer molecular weight to 10000～20000.

1930 year, 卡罗瑟斯 use ethylene glycol and acid shrink combined made polyester, 罗瑟斯 同事希尔 in from reaction device in 取出熔 melt polyester 时发现 一 types has phenomenon: this type of melt polymer can 像棉花糖 that 样抽出 filament, but also this type of fiber fine filament make cooling rear also can tensile, tensile long degree can to 原 几倍, cold tensile rear fiber strong/high degree and elastic property large large increase. this type of phenomenon make 他们预感 to this type of features can can tool has heavy large application value, has can can use melt polymer made fiber.

however, research table/sheet 明, from polyester to fiber tool has upper 意义. is high polyester in 100 ℃ below/following 即熔化, especially easy solvent various has machine solvent agent, is in water in also stability, therefore combined used for textile. 随 rear, 卡罗瑟斯 and 他 助手专注于寻找 new material, amine acid and 氨 衍生 material made formed material. 1934 year 5 month, chemical 家唐·科夫曼取 第一 ultra- polyamide (PA). month rear, chemical 家韦斯利彼 森做出 以蓖麻油 as raw materials polyamide (PA), 但蓖麻油并没 has large amount can by use raw materials.

卡罗瑟斯 also for this series polyester and polyamide (PA) type combined material in-depth research. more comparison, 1935 year 2 month 28 day 首次由 hexamethylenediamine and adipic acid combined formed polyamide (PA) 6/6. this type of polyamide (PA) solvent 于普通 solvent agent, melting point is 263 ℃, high usually use temperature degree, made fiber tool has filament appearance and gloss, in structure and property upper 也接近天然 filament, its wear resistance and strong/high degree ultra- 当时任何一 types fiber.

接, DuPont company also solution production polyamide (PA) 6/6 raw materials industrial issues, 于1939 year 12 month 12 day heavy new is resistant 纶(Nylon)开始 industrial production, this is most achieve industrial combined formed fiber product types.

二, nylon as —— filament 袜 诱惑

nylon combined formed combined formed fiber industrial 基础, nylon make textile product 面貌焕然一 new. use this type of fiber formed nylon filament transparent also ratio filament resistant 穿, 1939 year 10目24 day DuPont in in sales nylon filament long 袜时引起轰动, by is 珍奇之 material versus 抢购. 人们曾 use “象蛛 filament fine, filament strong/high, filament 一样美” 词句 赞誉 this type of fiber, to 1940 year 5 month, nylon fiber product sales and USA 各, rear lower 7 month time, DuPont company more 赚 300 10,000 USD, also nylon project R&D 预算.

1938 year DuPont company production nylon filament 袜风靡各

二战期间, nylon industrial by toward manufacturing drop 落伞, machine 轮胎帘子布, and other military industry product. USA acquisition full nylon product, use manufacturing types 军事装备.

due to nylon features and applications, rear development non speed, is 战争切断 Japan filament use product, nylon made product demand relatively 1946 year more 甚, from filament 袜, to carpet, and other, nylon made product difficult 以计数 methods 出现.

polyamide (PA) （PA） fiber application

三, automotive market application

nylon is machine lower 创造出 non product. although nylon as is fiber material, time 洪流“ filament 袜”一词也以 substitute/replace nylon formed is 代名词. nylon material as is resin material by in automotive market has its important market 位.

“ nylon is 梦幻般 automotive use material. ” DuPont company 理查德·梅奥 in most one-time electrical 话采访 in 说. is DuPont company high property can polymer full business 总监, in sales, technology and tube/pipe 理方面 already 经由20 year above experience, table/sheet 示, nylon 定位于 resin and engineering resin between, more year development, it can ratio front more high temperature degree. is increase resin heat resistant property meanwhile, improve/increase it strong/high degree.

its in 1941 year, nylon by used as molding resin. this application 包括阀杆, 接线夹 and 挡风玻璃刮 water device system. most significantly automotive application is 1956 year, France automotive manufacturing iron use nylon made as plastics dispersion hot device 风扇.

nylon already by used for various automotive parts ultra- 50 year

而 in recent years, nylon polymerization, modified and processing molding technology development, nylon material in automotive industrial in application areas day vast. more product types, high property can, specialized is currently nylon engineering plastics in automotive industrial in application research focus/key point.

currently world PA and PA66 in automotive market in application has ratio/proportion separation is 34% and 50%, day 趋严格 environmental protection requirements, PA resin and mixed material development comprehensive property can more excellent and meet/satisfy property can PA modified mixed material, new grade 层出不穷, automotive is PA most large application market, also effect/influence and promote PA modified material toward high property can 化, series and specialized direction development and new grade research development. expected future PA in automotive upper application still will maintain relatively high demand growth rate, nylon raw materials 厂, processing and most use combined as development high property can, easy processing, low cost, for property strong/high and ring more good specialized PA new mixed material expand large application, new automotive parts market.

review nylon development history, nylon industry in 国民经济社会 development important 位. future nylon still will in related industry speed development, promote engineering plastics high property can 化进程.