文献类型：期刊文献

英文题名：Properties of Rigid Polyurethane Foam Modified by Tung Oil-Based Polyol and Flame-Retardant Particles

作者：Zhou, Wei[1] Hao, Shu-Jie[1] Feng, Guo-Dong[2] Jia, Pu-You[3] Ren, Xiao-Li[4] Zhang, Meng[1] Zhou, Yong-Hong[1]

第一作者：Zhou, Wei

通信作者：Zhang, M[1]

机构：[1]Chinese Acad Forestry, Inst Chem Ind Forestry Prod, Nanjing 210042, Peoples R China;[2]Nanjing Forestry Univ, Coinnovat Ctr Efficient Proc & Utilizat Forest Re, Nanjing 210037, Peoples R China;[3]Key Lab Biomass Energy & Mat, Nanjing 210042, Jiangsu, Peoples R China;[4]SFA, Key Lab Forest Chem Engn, Nanjing 210042, Peoples R China

年份：2020

卷号：12

期号：1

外文期刊名：POLYMERS

收录：;EI(收录号：20200508104528);Scopus(收录号：2-s2.0-85078455005);WOS:【SCI-EXPANDED(收录号:WOS:000519848300119)】；

基金：This research was funded by National Natural Science Foundation of China, grant number 31670577, 31670578.

语种：英文

外文关键词：tung oil; polyol; catalyst-free; flame retardant particles; rigid polyurethane foam

摘要：Although tung oil is renewable, with an abundant production and low price in China, and it is used to synthesize different polyols for rigid polyurethane foam (RPUF), it remains a challenge to improve the properties of RPUF by redesigning the formula. Therefore, we propose four novel compounds to strengthen the properties of RPUF, such as the catalyst-free synthesis of tung oil-based polyol (PTOK), aluminum phosphate micro-capsule (AM), silica micro-capsule (SiM), and grafted epoxidized monoglyceride of tung oil on the surface of SiO2 (SiE), which were designed and introduced into the RPUF. Because of the PTOK with a catalytic function, the foaming process of some RPUF samples was catalyst-free. The results show that the incorporation of AM, SiM, and SiE, respectively, endow RPUF with a better thermal stability at a high temperature, and the T-5%, T-max1, and T-max2 of RPUF appeared to be reduced, however, the T-max3 and residue rate at 800 degrees C were improved, which may have a positive effect on the extension of the rescue time in case of fire, and the limiting oxygen index (LOI) value was increased to 22.6%. The formula, containing 25% PTOK made the RPUF environment-friendly. The results were obtained by comparing the pore size and mechanical properties of the RPUF-the AM had a better dispersion in the foam, and the foam obtained a better mechanical, thermal, and flame retardancy.