尼龙塑料(nylon)
加纤尼龙塑料是渔线轮主要使用的材料,使用率达到75%。主要是改性增强PA66。
聚酰胺俗称尼龙(Nylon),英文名称Polyamide ,它是大分子主链重复单元中含有酰胺基团的高聚物的总称。聚酰胺可由内酸胺开环聚合制得,也可由二元胺与二元酸缩聚等得到的。聚酰胺(PA)是指主链节含有极性酰胺基团(-CO-NH一)的高聚物。最初用作制造纤维的原料,后来由于PA具有强韧、耐磨、自润滑、使用温度范围宽成为目前工业中应用广泛的一种工程塑料。PA广泛用来代替铜及其他等优点,有色金属制作机械、化工、电器零件,如柴油发动机燃油泵齿轮、水泵、高压密封圈、输油管等.
是美国DuPont公司最先开发用于纤维的树脂,于1939年实现工业化。20世纪50年代开始开发和生产注塑制品,以取代金属满足下游工业制品轻量化、降低成本的要求。PA具有良好的综合性能,包括力学性能、耐热性、耐磨损性、耐化学药品性和自润滑性,且摩擦系数低,有一定的阻燃性,易于加工,适于用玻璃纤维和其它填料填充增强改性,提高性能和扩大应用范围。
改性增强PA66
Nylon yas
Fiber reinforced nylon yas yog cov khoom siv tseem ceeb siv hauv kev nuv ntses kab log, nrog kev siv tus nqi ntawm 75. Feem ntau hloov kho thiab txhim kho PA66.
Polyamide, feem ntau hu ua nylon, yog ib lo lus dav dav rau cov polymers uas muaj cov pab pawg amide hauv cov chav rov ua dua ntawm cov saw tseem ceeb ntawm macromolecules. Polyamide tuaj yeem tau los ntawm lub nplhaib qhib polymerization ntawm sab hauv acid amine, lossis los ntawm hws polymerization ntawm binary amine thiab binary acid. Polyamide (PA) yog hais txog cov polymer nrog cov pab pawg polar amide (- CO-NH-1) hauv nws cov saw loj. Thaum pib siv los ua cov khoom siv raw rau kev tsim cov khoom siv fiber ntau, PA tau dhau los ua cov yas siv dav hauv kev lag luam vim nws lub zog, hnav tsis kam, tus kheej lubrication, thiab qhov kub thiab txias ntawm kev siv. PA yog dav siv los hloov tooj liab thiab lwm yam zoo, thiab cov hlau tsis muaj hlau yog siv los ua cov khoom siv kho tshuab, tshuaj lom neeg, thiab hluav taws xob, xws li diesel cav roj twj tso kua mis zog, twj tso kua mis, lub siab sib khi lub nplhaib, roj kav dej, thiab lwm yam
Nws yog thawj cov roj hmab tsim los ntawm DuPont Lub Tuam Txhab hauv Tebchaws Meskas rau cov fibers thiab tau tsim kev lag luam hauv xyoo 1939. Xyoo 1950, kev txhaj tshuaj pwm cov khoom lag luam tau tsim thiab tsim los hloov cov hlau kom tau raws li qhov yuav tsum tau ua ntawm lub teeb yuag thiab txo tus nqi hauv cov khoom lag luam qis. PA muaj cov khoom zoo heev, suav nrog cov khoom siv kho tshuab, tiv tshav kub, hnav tsis kam, tshuaj lom neeg tsis kam, thiab nws tus kheej lubrication. Nws muaj kev sib txhuam tsis tshua muaj coefficient, qee qib ntawm nplaim taws qeeb qeeb, thiab yooj yim rau txheej txheem. Nws yog qhov tsim nyog rau kev siv iav fiber ntau thiab lwm cov tub lim los txhim kho thiab hloov kho, txhim kho kev ua haujlwm, thiab nthuav cov ntawv thov ntau.
Hloov kho thiab ntxiv dag zog PA66