Synthesis, curing of hydroxyl-terminated liquid fluoroelastomer: thermal, chemical resistant and mechanical properties

2017 Global Conference on Polymer and Composite Materials

材料科学;化学

Li, N.^1 ; Wu, J.J.^2 ; Wang, Y.Q.^2 ; Wu, J.H.^2 ; Zhang, J.J.^3 ; Huo, J.Z.^3 ; Bai, Y.P.^1

School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin

150001, China^1

College of Materials Science and Engineering, Key Laboratory of Carbon Fiber and Functional Polymers of Ministry of Education, Beijing University of Chemical Technology, Beijing

100029, China^2

FoShan NanHai Gotop Packaging Material Co., Ltd, Foshan

528225, China^3

关键词: Char yield;    Chemical resistant;    Curing process;    Fluoroelastomers;    Hydroxyl-terminated;    Link structure;    Ring structures;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/213/1/012029/pdf
DOI  :  10.1088/1757-899X/213/1/012029

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

A novel hydroxyl-terminated liquid fluoroelastomer (HTLF) was synthesized; FT-IR, GPC and1H-NMR result show that HTLF was synthesized successfully. Then HTLF was cured with HDI trimer, the structure of cured product was characterized by FT-IR. Compared with traditional solid fluorine elastomer, Cured HTLF has higher char yield and faster thermal decomposition rate. It ascribed to the introduction of ring structure the cross-link structure formed in the curing process. The study of chemical resistant properties and tensile strength of cured fluoroelastomer film suggested that Cured HTLF was provided with similar mmechanical properties, chemical resistant property than solid fluorine elastomer.