文献类型：期刊文献

英文题名：A Comparative Study on the Properties of Rosin-Based Epoxy Resins with Different Flexible Chains

作者：Deng, Lianli Wang, Zehua Qu, Bailu Liu, Ying Qiu, Wei Qi, Shaohe

第一作者：Deng, Lianli

通信作者：Liu, Y[1]

机构：[1]Xiangnan Univ, Sch Chem & Environm Sci, Hunan Prov Key Lab Xiangnan Rare Precious Met Cpds, Chenzhou 423000, Peoples R China;[2]Guangxi Univ, Sch Chem & Chem Engn, Nanning 530004, Peoples R China;[3]Changsha Ecol & Environm Monitoring Ctr Hunan Prov, Changsha 410001, Peoples R China;[4]Guizhou Inst Technol, Sch Chem Engn, Guiyang 550003, Peoples R China

第一机构：Xiangnan Univ, Sch Chem & Environm Sci, Hunan Prov Key Lab Xiangnan Rare Precious Met Cpds, Chenzhou 423000, Peoples R China

通信机构：corresponding author), Guizhou Inst Technol, Sch Chem Engn, Guiyang 550003, Peoples R China.|贵州理工学院化学工程学院;贵州理工学院;

年份：2023

卷号：15

期号：21

外文期刊名：POLYMERS

收录：;EI(收录号：20234615060309);Scopus(收录号：2-s2.0-85176503223);WOS:【SCI-EXPANDED(收录号:WOS:001100381400001)】；

基金：This research was funded by the National Natural Science Foundation of China (No. 52160010), the Doctoral Initiation Fund of Xiangnan University (2020 No. 11; QiankeheLH [2014]7368), the Science and Technology Plan Project of Guizhou Province (QiankeheJichu ZK[2023]yiban 132), the Excellent Talents Award Plan of Guizhou Education Department (Grant No. Qianjiaohe KY [2014]245), the Academic New Seedling Plan Project of Guizhou Institute of Technology (GZLGXM-16), the Guizhou Science and Technology Support Project (Granted No. Qiankehe Zhicheng [2017]2817; [2018]2835), and the Startup Foundation for Advanced Talents of Guizhou Institute of Technology (XJGC20190623; XJGC20190646).

语种：英文

外文关键词：rosin; flexible chain; film property; bio-based epoxy; curing agent

摘要：This study aims to reveal the effects of flexible chain lengths on rosin-based epoxy resin's properties. Two rosin-based epoxy monomers with varying chain lengths were synthesized: AR-EGDE (derived from ethylene glycol diglycidyl ether-modified acrylic acid rosin) and ARE (derived from acrylic acid rosin and epichlorohydrin). Diethylenetriamine (DETA), triethylenetetramine (TETA), and tetraethylenepentamine (TEPA) with different flexible chain lengths were used as curing agents. The adhesion, impact, pencil hardness, flexibility, water and heat resistance, and weatherability of the epoxy resins were systematically examined. It was found that when the flexible chains of rosin-based epoxy monomers were grown from ARE to AR-EGDE, due to the increased space of rosin-based fused rings, the toughness, adhesion, and water resistance of the rosin-based epoxy resins were enhanced, while the pencil hardness and heat resistance decreased. However, when the flexible chains of curing agents were lengthened, the resin's performance did not change significantly because the space between the fused rings changed little. This indicates that the properties of the rosin-based resins can only be altered when the introduced flexible chain increases the space between the fused rings. The study also compared rosin-based resins to E20, a commercial petroleum-based epoxy of the bisphenol A type. The rosin-based resins demonstrated superior adhesion, water resistance, and weatherability compared to the E20 resins, indicating the remarkable durability of the rosin-based resin.