文献类型：期刊文献

英文题名：Effects of intumescent flame retardant system consisting of tris (2-hydroxyethyl) isocyanurate and ammonium polyphosphate on the flame retardant properties of high-density polyethylene composites

作者：Khanal, Santosh[1];Zhang, Weipeng[1];Ahmed, Saad[1];Ali, Muhammad[1];Xu, Shiai[1,2]

机构：[1]East China Univ Sci & Technol, Sch Mat Sci & Engn, Minist Educ, Key Lab Ultrafine Mat, Shanghai 200237, Peoples R China;[2]Qinghai Univ, Sch Chem Engn, Xining 810016, Qinghai, Peoples R China

年份：2018

卷号：112

起止页码：444

外文期刊名：COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING

收录：;EI(收录号：20182705404692);WOS:【SCI-EXPANDED(收录号:WOS:000440957800048)】；

基金：This research is financially supported by the National Natural Science Foundation of China (U 1507123), the Foundation from Qinghai Science and Technology Department (2017-HZ-803) and Thousand Talents Program of Qinghai Province.

语种：英文

外文关键词：Flame retardancy; Intumescent flame retardant; Charring agent; Char structure

摘要：An intumescent flame retardant (IFR) system composed of tris (2-hydroxyethyl) isocyanurate (THEIC) and ammonium polyphosphate (APP) was used to prepare high density polyethylene (HDPE) composites, and their thermal and flammability properties were studied. The limiting oxygen index of the HDPE composite containing 30 wt% of IFR with an APP: THEIC weight ratio of 3:1 (HD31) reaches 31.5%. The cone calorimeter analysis shows that the peak and average heat release rate of HD31 are reduced by 69.5% and 58.1% respectively; while the average mass loss rate is reduced by 77.2%. The thermogravimetric analysis suggests that the IFR/HDPE composites have good char forming ability. The structural analysis of the char residue shows that the intumescent char is composed of a polyaromatic structure containing nitrogen in five or six-membered ring linked to phospho-carbonaceous structure via the P-O-C linkage, and some phosphorous degradation products containing P-O-P structure.