摘要
研究了长碳链聚酰胺ＰＦ尼龙的辐射交联。ＰＦ尼龙Ⅰ￣＃的起始凝胶化剂Ｒ＿ｇ为０．３３～０．３５ＭＧｙ，ＰＦ尼龙Ⅱ￣＃的Ｒ＿ｇ为０．４３～０．４７ＭＧｙ。用ＩＲ、Ｒａｍａｎ和ＤＳＣ研究了辐照ＰＦ尼龙的化学结构和热学性质。结果表明，辐照文联ＰＦ尼龙分子链上有Ｃ＝Ｃ和Ｃ＝Ｎ双键结构产生，其熔融热△Ｈ＿ｍ、结晶热△Ｈ＿ｃ、结晶温度Ｔ＿ｃ和熔融温度Ｔ＿ｍ随辐照剂量Ｒ的增加而降低。空气中的氧对ＰＦ尼龙的辐射交联有一定影响。
The radiation crosslinking of long carbonic chain polyamides PF nylon Ⅰ￣# (PFN Ⅰ￣#) , PF nylon Ⅱ￣# (PFN Ⅱ￣#) were studied. The doses for incipient gel formation (Rg) are:Rg (PFN Ⅰ￣# )=0. 33～0. 35 MGy, Rg (PFN Ⅱ￣#) = 0. 43￣0. 417 MGy. The chemical structure and thermal properties of irradiated PFNs were studied by means of IR , Raman and DSC. There are C=C and C=N bonds in irradiatied PFN. △H_m ,△H_c, T_m and T_c of irradiated PFN are decreased with increasing the radiation dose .The influence of Oxygen was observed.
出处
《高分子材料科学与工程》
EI
CAS
CSCD
北大核心
1994年第4期92-96,共5页
Polymer Materials Science & Engineering
基金
河南省青年科学基金
关键词
石油发酵尼龙
PFN
辐射交联
s:PF nylon, radiation crosslinking,γ-radiation.
