Synthesis of a silicone-containing flame retardant and its application in flame retarding polycarbonate
Document Type
Article
Publication Date
10-1-2011
Abstract
Hydrogen-containing silicone oil modified with phenol (HSOP) was used to improve the flame retardancy of polycarbonate (PC). Flame-retardant and mechanical properties results show that when the HSOP content is 5%, the limiting oxygen index (LOI) values of PC increase from 26.5% to 32.5% and vertical burning rating (UL-94) enhances from V-2 rating to V-0 rating, notched impact strength and breaking elongation increases 48.9% and 37.6% respectively. The possible flame retardant mechanism of HSOP was studied via thermogravimetric analysis (TGA) measurements on PC/HSOP and scanning electron microscopy (SEM) observation on char residues. The results demonstrate that dense char layer formed by cross-linking between the HSOP and PC matrix during combustion is crucial to improve the flame retardancy of materials.
Publication Source (Journal or Book title)
Gaofenzi Cailiao Kexue Yu Gongcheng/Polymeric Materials Science and Engineering
First Page
138
Last Page
142
Recommended Citation
Ding, L., Song, R., & Li, B. (2011). Synthesis of a silicone-containing flame retardant and its application in flame retarding polycarbonate. Gaofenzi Cailiao Kexue Yu Gongcheng/Polymeric Materials Science and Engineering, 27 (10), 138-142. Retrieved from https://repository.lsu.edu/ag_exst_pubs/433