????????

 PVC-U
??????????????Polyvinal Chloride??1930????????
    ???:???????1.37g/cm3??????????????????????????????????PVC????????????60C?
    ???????:????????????????????????????????????????????????????
    ??????:????? ????(<0C)????(>60C)

 PVC-C
?????????????Chlorinated Pllyvinal Chloride??1958???????
    ???:???PVC????1.51g/cm3????????????????????100??????????CPVC???????CPVC????????????????????
    ???????:??????????????????????????
    ??????:????? ????(<0?) 

 ABS
?????- ???- ???????????Acrylonitrile-Butadiene-Styrene Copolymer? ?1954???????
    ???:ABS??????????????????????????????????????????? ??????????????????????ABS?????????????????????:-40??70???????????????????
    ???????:????????????????????????????????????
    ??????:????(>60?)????????? 

 PP
??????????Polypropylene??1954???????
    ???:???????????????????????????100????????????????????????????PP???????PP-H?PP-R????????PP-H???????????PP-R???????????????PP-H??????????PP-H???????????PP-R??????????
    ???????:???????????????????????
    ??????:???????? ???? 

 PE
??????????Polyethylene????0.95g/cm3?
    ???:??????????????????????????60C???????????????????????PP????????????????????PE????????????????
    ???????:???????????????????????????????????
    ??????:???????? ????(>60?) 

 PVDF
?????????????PolyvinylideneFluioride??70??????????1.78g/cm3?
    ???:????????????????18???????????????????????PVDF???????????????????????PTFE??????-40??140?????????PP?PE?PVDF???????????????????????????????
    ???????:??????????????????????????????????????????????
    ??????:?????? PH?>12