现在的社会人脉越来越壮阔，形形色色的关系，当然，世界的科技越来越发达，汽车领域、电子电器领域以及建材领域越来越发达。不像以前的社会，看的是黑白电视、骑的是自行车、住的是平地房，现在完全不能跟以前的社会做比较，就拿以前的汽车来比较，当时的人们工资还不是那么高，都还买不起汽车，也只有工资学历特别高的人才能消费的起，以前的社会汽车特别少，现在看来，几乎现在家家户户都有着自己的家居车，街道上的汽车源源不断行驶着。现在看来人们的生活得到了改善，身边的科技品越来越多，但是这些科技品也离不开塑料。塑料，他是合成树脂的一种，随后经过人工化学形式而合成。可以来说没有塑料就会少掉我们身边一大部分的物品，没有这些物品塑料的应用也不会发展起来，可以这样来说，没有你就没有它，两者缺一不可，从而制作更好的产品的形式来回馈我们。

现在我们的身边塑料越来越多，连我们所用的手机壳也是用塑料合成的，现在大多数使用手机的消费者都会给配上防撞击的手机壳，使用塑料制作的手机壳具有耐热、抗冲击、耐低温性能。这样就能给手机一定的防护，另外手机壳生产者还进行了对手机壳进行涂装，从而达到美观、手感好等，这一点要求了塑料必须容易涂装、易加工着色等。像这种品质更好的产品，就强势的要求塑料的性能必须好。能达到让手机壳具有耐热、抗冲击、容易涂装的性能，其实就是由一种用途极广的热塑性工程塑料ABS，ABS是一种树脂，可以简单的来说也是一种橡胶，手感软，具有一定的弹性，现在大多数的领域几乎都是用ABS树脂来制作加工产品配件等。 

Vydyne® 21SPC

聚酰胺66

Ascend Performance Materials Operations LLC

Vydyne 21SPC is a general-purpose PA66 resin. Available in natural color. It is designed principally for injection-molding fabrication. This resin offers a well balanced combination of engineering properties characterized by high strength; rigidity; good toughness; high melt point; good surface lubricity; abrasion resistance; and resistance to many chemicals, machine and motor oils, solvents and gasoline.

Vydyne 21SPC permits production of molded parts with good initial color plus good property and color retention when using regrind. This resin is recognized by Underwriters Laboratories and conforms to the re of many industrial, federal and military specifications for premium-, general-purpose PA66 resins.

Internally and externally lubricated for improved machine feed and exceptional mold release. Vydyne 21SPC is intended for use in high-productivity applications. In many applications, the molding cycle can be reduced because parts may be removed from the cavity at higher temperatures. In difficult molds where parts have a tendency to stick in the cavity, Vydyne 21SPC can reduce or eliminate the need for mold release sprays. Critical molded-part dimensions should be checked against specifications before implementing shorter molding cycles on a routine production basis.

Typical Applications/End Uses:
Vydyne 21SPC has been used in many molding applications such as terminal blocks, bearings, bushings, cams, electrical connectors and housings, electrical cable ties/tie straps and many other hardware and general industrial parts.