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泵体材质塑料的分类

(2009-04-28 08:19:19)
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泵体材质

杂谈

按理化特性分类 根据各种塑料不同的理化特性,可以把塑料分为热固性塑料和热塑料性塑料两种类型。
⑴热固性塑料
热固性塑料是指在受热或其他条件下能固化或具有不溶(熔)特性的塑料,如酚醛塑料、环氧塑料等。热固性塑料又分甲醛交联型和其他交联型两种类型。
甲醛交联型塑料包括酚醛塑料、氨基塑料(如脲-甲醛-三聚氰胺-甲醛等)。
其他交联型塑料包括不饱和聚酯、环氧树脂、邻苯二甲二烯丙酯树脂等。

 ⑵热塑料性塑料
热塑料性塑料是指在特定温度范围内能反复加热软化和冷却硬化的塑料,如聚乙烯、聚四氟乙烯等。热塑料性塑料又分烃类、含极性基因的乙烯基类、工程类、纤维素类等多种类型。
①烃类塑料。属非极性塑料,具有结晶性和非结晶性之分,结晶性烃类塑料包括聚乙烯、聚丙烯等,非结晶性烃类塑料包括聚苯乙等。
②含极性基因的乙烯基类塑料。除氟塑料外,大多数是非结晶型的透明体,包括聚氯乙烯、聚四氟乙烯、聚醋酸乙烯酯等。乙烯基类单体大多数可以采用游离基型催化剂进行聚合。
③热塑性工程塑料。主要包括聚甲醛、聚酰胺、聚碳酸酯、ABS、聚苯醚、聚对苯二甲酸乙二酯、聚砜、聚醚砜、聚酰亚胺、聚苯硫醚等。聚四氟乙烯。改性聚丙烯等也包括在这个范围内。
④热塑性纤维素类塑料。主要包括醋酸纤维素、醋酸丁酸纤维素、塞璐珞、玻璃纸等。

By physical and chemical characteristics of classification based on a variety of different physical and chemical characteristics of plastics can be divided into thermosetting plastics and thermoplastic plastics are two types of plastic.
⑴ thermosetting plastics
Thermosetting plastic is defined as heat or other conditions can be solidified or insoluble (melt) properties of plastics, such as Bakelite, epoxy plastic. Thermosetting plastics and formaldehyde cross-linking points and the other two types of cross-linking.
Formaldehyde cross-linking of plastic, including Bakelite, amino-plastic materials (such as urea - formaldehyde - melamine - formaldehyde, etc.).
Other plastics, including cross-linking unsaturated polyester, epoxy resin, diene propyl Phthalonitrile resin. 
  ⑵ thermal plastic plastic
Thermal plastic and plastic is defined as a specific temperature range can be repeated heating and cooling to soften hardened plastic such as polyethylene, PTFE and so on. Plastic and thermal plastic sub-hydrocarbon containing vinyl polarity gene, engineering, and many other types of cellulose.
① plastic hydrocarbons. Is a non-polar plastics, with crystalline and amorphous nature of the points, crystalline hydrocarbon, including plastics polyethylene, polypropylene, etc., non-crystalline hydrocarbon, such as plastics, including polystyrene B.
② polarity gene containing vinyl plastic. Fluorine plastic, most non-transparent crystalline body, including PVC, PTFE, such as polyvinyl acetate. The majority of vinyl monomers can be used for free radical polymerization catalyst.
③ engineering thermoplastics. Include polyoxymethylene, polyamide, polycarbonate, ABS, polyphenylene oxide, polyethylene terephthalate, polysulfone, polyether sulfone, polyimide, polyphenylene sulfide and so on. PTFE. Modified polypropylene were also included in this range.
④ cellulosic thermoplastic plastics. Including cellulose acetate, cellulose acetate butyrate, Luo塞璐, such as cellophane.
泵体材质塑料的分类泵体材质塑料的分类

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