美国杜邦ZYTEL耐高温尼龙PPA工程塑料
Zytel HTN 51G15HSL BK083 DuPont Engineering Polymers PPA
Zytel HTN 51G15HSL NC010 DuPont Engineering Polymers PPA
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Zytel HTN 51G35HSL BK083 DuPont Engineering Polymers PPA
Zytel HTN 51G35HSL NC010 DuPont Engineering Polymers PPA
Zytel HTN 51G35HSLR BK420 DuPont Engineering Polymers PPA
Zytel HTN 51G45HSL BK083 DuPont Engineering Polymers PPA
Zytel HTN 51G45HSL NC010 DuPont Engineering Polymers PPA
Zytel HTN 51G45HSLR BK420 DuPont Engineering Polymers PPA
Zytel HTN 51G50HSL BK083 DuPont Engineering Polymers PPA
Zytel HTN 51GM60THS BK083 DuPont Engineering Polymers PPA
Zytel HTN 51GM60THS NC010 DuPont Engineering Polymers PPA
Zytel HTN 51GM65HSL BK083 DuPont Engineering Polymers PPA
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Zytel HTN 52G35HSL NC010 DuPont Engineering Polymers PPA
Zytel HTN 52G45HSL BK031 DuPont Engineering Polymers PPA
Zytel HTN 52G45HSL NC010 DuPont Engineering Polymers PPA
Zytel HTN 53G35HSLRHF BK083 DuPont Engineering Polymers HPPA
Zytel HTN 53G50HSLR BK083 DuPont Engineering Polymers HPPA
Zytel HTN 53G50HSLRHF BK083 DuPont Engineering Polymers HPPA
Zytel HTN 53G50LRHF NC010 DuPont Engineering Polymers HPPA
Zytel HTN 53GM40HSL BK083 DuPont Engineering Polymers HPPA
Zytel HTN 54G15HSLR BK031 DuPont Engineering Polymers PPA
Zytel HTN 54G15HSLR NC010 DuPont Engineering Polymers PPA
Zytel HTN 54G35HSLR BK031 DuPont Engineering Polymers PPA
Zytel HTN 54G35HSLR NC010 DuPont Engineering Polymers PPA
Zytel HTN 54G50HSLR BK031 DuPont Engineering Polymers PPA
Zytel HTN 54G50HSLR NC010 DuPont Engineering Polymers PPA
Zytel HTN FE150004 BK083 DuPont Engineering Polymers PPA
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Zytel HTN FE16502 BK001 DuPont Engineering Polymers PPA
Zytel HTN FE18502 NC010 DuPont Engineering Polymers PPA
Zytel HTN FE250020 NC010 DuPont Engineering Polymers PPA
Zytel HTN FE8200 NC010 DuPont Engineering Polymers PPA
Zytel HTN FR51G35L NC010 DuPont Engineering Polymers PPA
Zytel HTN FR52G20NH BK337 DuPont Engineering Polymers PPA
Zytel HTN FR52G20NH NC010 DuPont Engineering Polymers PPA
Zytel HTN FR52G30BL NC010 DuPont Engineering Polymers PPA
Zytel HTN FR52G30NH BK337 DuPont Engineering Polymers PPA
Zytel HTN FR52G30NH NC010 DuPont Engineering Polymers PPA
Zytel HTN FR52G45BL BK337 DuPont Engineering Polymers PPA
Zytel HTN FR52G45BL NC010 DuPont Engineering Polymers PPA
Zytel HTN WRF51G30 NC010 DuPont Engineering Polymers PPA
Zytel HTN WRF51K20 NC010 DuPont Engineering Polymers PPA
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PPA (Polyphthalamide ) 聚邻苯二甲酰胺，在高温高湿状态下,PPA的抗拉强度
比尼龙6高20%，比尼龙66更高；PPA材料的弯曲模量比尼龙高20%，硬度更大，能
抗长时间的拉伸蠕变；且PPA的耐汽油、耐油脂和冷却剂的能力也比PA强；一种耐
高温尼龙，这种材料可以耐200℃的持续高温，并且还能保持良好的尺寸稳定性。
  聚邻苯二甲酰胺（简称PPA）树脂是以对苯二甲酸或邻苯二甲酸为原料的半芳香
族聚酰胺。既有半结晶态的，也有非结晶态的，其玻璃化温度在255°F左右。非结
晶态的PPA主要用于要求阻隔性能的场合；半结晶态的PPA树脂主要用于注塑加工，
也用于其它熔融加工工艺。下文主要介绍后者——半结晶态PPA树脂，特别注明的
除外。半结晶态PPAS的熔点约为590°F，以不透明矩形切片的形式供应。由于PPA
树脂的杰出的物理、热和电性能，尤其是适中的成本，使它有广阔的应用范围。
这些性能和优良的耐化学性一起，使PPA成为汽车工业许多用途的候选者。趋向更
好的空气动力学车身设计连同更高性能的马达，将提高发动机箱的温度，使传统的
热塑塑料显得不尽适用。这些新的要求使PPA成为制作下述部件的候选材料之一：
汽车前灯反光器、轴承座、皮带轮、传感器壳体、燃料管线元件和电气元件