文献类型：期刊文献

英文题名：Thermal degradation behavior and flame retardant mechanism of poly(vinyl chloride) plasticized with a soybean-oil-based plasticizer containing phosphaphenanthrene groups

作者：Jia, Puyou[1] Zhang, Meng[1,2] Hu, Lihong[1,2] Zhou, Jing[1] Feng, Guodong[1] Zhou, Yonghong[1]

第一作者：贾普友

通信作者：Zhou, YH[1]

机构：[1]Chinese Acad Forest, Inst Chem Ind Forest Prod, Nanjing 210042, Jiangsu, Peoples R China;[2]Chinese Acad Forest, Inst New Technol Forestry, Nanjing 210042, Jiangsu, Peoples R China

年份：2015

卷号：121

起止页码：292-302

外文期刊名：POLYMER DEGRADATION AND STABILITY

收录：;EI(收录号：20154101374130);Scopus(收录号：2-s2.0-84943577795);WOS:【SCI-EXPANDED(收录号:WOS:000365057700032)】；

基金：This work was supported by National 12th Five-year Science and Technology Support Plan (Grant No. 2015BAD15808); Jiangsu Province Natural Science Foundation of China (Grant No. BK20141074).

语种：英文

外文关键词：Poly(vinyl chloride); Flame retardancy; Plasticizer; Soybean oil

摘要：This represents the first description of a flame retardant plasticizer based on soybean oil containing phosphaphenanthrene groups (PSPE). This additive has been prepared and applied in the generation of flame retardant PVC materials. The molecular structure of PSPE was characterized using FT-IR, H-1 NMR and P-31 NMR spectroscopy. The thermal degradation behavior and flame retardant performance of PVC blends plasticized with different amounts of DOP and PSPE has been examined based on mass loss, LOI values, morphologies of residues, smoke production rate (SPR), smoke extinction area (SEA), mass loss rate (MLR) and heat release rate (HRR), thermal degradation processes and modes of flame retardant action has been proposed. The results showed that the addition of PSPE promotes the formation of high quality char residue. Replacement of DOP with PSPE provided PVC blends which exhibited high thermal stability; T-d, T-50, T-p1 and T-p1 of 291.3 degrees C, 325.8 degrees C, 283.0 degrees C and 461.8 degrees C, respectively, were observed. The degradation of PSPE released PO2 and HPO2 radicals and a series of long chain fatty acid, which provided abundant carbon sources and acid sources for PVC blends. The flame retardant effect was mainly in the condensed phase. (C) 2015 Elsevier Ltd. All rights reserved.