一、概况 工程塑料是一种新型的高分子合成材料。一般指机械强度比较高,可代替金属作工程材料的一类塑料。这类塑料的性能与某些金属相比,具有重量轻,比强度高,耐磨,防腐,绝缘,自润滑性能优良,噪音小,加工工艺简便,可实现少、无切屑加工等优点。 塑料工业的基础原料最早以农副产品为 I. Overview Engineering plastics is a new type of polymer synthetic material. Generally refers to a relatively high mechanical strength, a type of plastic that can replace metals as engineering materials. Compared with some metals, this kind of plastic has the advantages of light weight, high specific strength, wear resistance, antisepsis, insulation, excellent self-lubricating performance, low noise, simple processing technology, and advantages such as less processing and no chip processing. The basic raw materials of the plastics industry were earliest agricultural and sideline products.