塑料材料选用参考

塑料材料选用参考

1 塑料选材的通用原则 .............................................................................................................. 2

1.1塑料选材的一般程序 .......................................................................................................... 2

1.2 塑料材料一般选用 ............................................................................................................. 3

1.3 塑料选材的途径 ................................................................................................................... 4

1.3.1 根据用途选材 ........................................................................................................................ 4

1.3.2 按塑料应用范围选材 .......................................................................................................... 5

1.3.3 根据要求的性能选材 .......................................................................................................... 7 2 塑料在电子电气工业中的应用 ....................................................................................... 8

2.1电子电气工业中选用塑料的准则 ............................................................................... 9

2.2电子电器工业中塑料品种的分类 ............................................................................... 9

2.2.1 按材料的电导率 ................................................................................................................... 9

2.2.2 按塑料品种分类 ................................................................................................................. 10 3通用塑料与工程塑料的性能 ............................................................................................ 12

3.1塑胶材料性能概述 ......................................................................................................... 13

3.1.1物理性能（Physical Properties） ............................................................................................. 13

3.1.2机械性能（Short-term Mechnical Properties）........................................................................ 13

3.1.3热性能（Thermal Properties） ................................................................................................. 16

3.1.4电气性能（Dielectrical Properties） ........................................................................................ 17

3.1.5环境性能（Environment Properties） ...................................................................................... 19

3.2常用塑胶材料性能 ......................................................................................................... 19

3.2.1 ABS（Acrylonitrile- Butadiance- Styrene Copolymer） .......................................................... 19

3.2.2 PC（Polycarbonate, 聚碳酸酯） ............................................................................................. 21

3.3.3 ABS/PC（ABS与PC的共混合金） ....................................................................................... 22

3.3.4 PMMA（Polymethylmethacrylate，压克力） ......................................................................... 22

3.3.5 POM（Polyacetal） .................................................................................................................. 23

3.3.6 PS（Polystyrene,聚苯乙烯） ................................................................................................... 24

4.结语 ..................................................................................................................................................... 25