??
???????TG??????????Py-GC/MS????PA6?????????????????????PA6?????????????????????????????????????????PA6???????????????????PA6??????????????????????????????????????409.2 ??448.6 ?????????199.4 kJ/mol????????PA6???????????????????58.76%????????????

????Polyamide?PA)????????????????????????????PA?????????????????????????????????????????????????????PA??????PA6?PA66?PA11?PA12?PA610?PA1010?PA6T????PA6?PA66????????????????????????????????????????????????????????????????????????????? ??????????????????????????????????????????????????????????????????????????????????-????????PA12???????????????????????????????????-?????????????????21????????????????????????????????????????3?????????????????????????????????????????????TG??????????????Py-GC/MS?????????PA6????????????????


? ?
 
1.?????
???PA6???????????????????
???7890B-5977A????????Agilent????TGA/1100LF?????????METTLER TOLEDO????EGA/PY-3030D?????????????Frontier????
2.????
???????????45 mL/min????????????25 ???800 ??
?????HP-5MS???????30 m× 0.25 mm ×0.25 ?m?????????1 mL/min??????280 ?????50?1??????????50 ????1 min??10 ?/min??? 300 ? ???3 min?
?????EI??????70 eV??????230 ???????150 ???????280 ??????SCAN???????30?450 amu???Nist11??????
?????????550 ??????30 s?????300 ??


?????


1.PA6???????
??TG???PA6???????????????5?10?15?20 ?/min????(?25 ????800 ????PA6????????????5 ?/min?????????PA6?????????? To ?409.2 ?????? Tf ?456.3 ?,???????? Tp ?439.2 ??


PA6?????????? To ????? Tf ????????? Tp ?????? ? ???????TG?????DTG?????????????PA610?PA69????????????? To ? Tf ? Tp ? ? ????????PA6????????????????????????????????????????

? ? ???0???????PA6????????? T⁰ o? T⁰ f ? T⁰ p ???402.9 ??448.6 ??431.7 ??
?????490 ????PA6???????????2%???????490 ??PA6??????????????

2.????????
??????????

????????????k????????n????????PA6????????????????Arrhenius ??k= Aexp (-E/RT)????? ?= dT/ dt???4?????

???t??????A???????? R ????????E????????
????????????????? Kissinger???PA6??????????????6?:

????p ???????????????
?? PA6?????????????ln (?/T2p) ?1/Tp ????????4???????-23.98??????????E?199.4  kJ/mol?PA6?????????????????????????PA6????????????????

3.???????
??PA6??????????????????550 ??????????100 ?g?PA6??????????????????????????????
?Nist11??????????????????????PA6???????20???????????????????????????1???????????????58.76%??????1%??????????????????????????1,8-???????-2,9-?????-1-(3,4,5,6-??-2H-??-7-?)-2H-??-2-??6-????-N-(5-???)????6-???? N-(5-???)????N-??????8??5-???????????1%?????????????


4.PA6???????
???????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????PA6?????????????PA6??????????????????????????????????????????????????????????????????????????PA6????????????????????????????????????????????????????????????????????????7???

PA6???????????? ? ??? ? ??????????7???PA6?????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????? ? ??????????????????????????????????????????????????

? ? 

a?PA6??????????????????????199.4 kJ/mol??????????402.9 ???????????448.6 ??490 ???????????PA6????????????
b?PA6?????????????????????58.76%??????????????????????