The effects of thermally reversible agents on PVC stability properties

2016 Global Conference on Polymer and Composite Materials

材料科学;化学

Wang, J.^1 ; Yao, J.^2 ; Xiong, X.H.^1 ; Jia, C.X.^1 ; Ren, R.^1 ; Chen, P.^1 ; Liu, X.M.^3

Liaoning Key Laboratory of Advanced Polymer Matrix Composites Manufacturing Technology, Faculty of Aerospace Engineering, Shenyang Aerospace University, Shenyang

110136, China^1

Shenyang Rui da Machinery Export and Import Co., Ltd, Shenyang

110000, China^2

School of Textile and Material Engineering, Dalian Polytechnic University, Dalian

116034, China^3

关键词: Cross linking agents;    Crosslinking reaction;    Cyclopentadienyls;    Gel contents;    Stability measurements;    Stability properties;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/137/1/012030/pdf
DOI  :  10.1088/1757-899X/137/1/012030

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

One kind of thermally reversible cross-linking agents for improving PVC thermally stability was synthesized. The chemical structure and thermally reversible characteristics of cross-linking agents were investigated by FTIR and DSC analysis, respectively. FTIR results confirmed that the cyclopentadienyl barium mercaptides ((CPD-C2H4S)2Ba) were successfully synthesized. DSC results showed it has thermally reversible characteristics and the depolymerization temperature was between 170 °C and 205 °C. The effects of cross-linking reaction time on gel content of Poly(vinyl chloride) compounds was evaluated. The gel content value arrived at 42% after being cross-linked for 25 min at 180 C. The static thermally stability measurement proved that the thermally stability of PVC compounds was improved.