作者:Qinghe Fu、Yilang Long、Yingyun Gao、Yuan Ling、Hao Qian、Fang Wang、Xinbao Zhu
DOI:10.1039/c8ra10288k
日期:——
series of environment-friendly plasticizers has been synthesized from castor oil through a mild esterification/epoxidation reaction. The modified epoxy acetylated castor oil (EACO) can plastify poly(vinyl chloride) (PVC) efficiently, even better than the commercial plasticizers dioctyl terephthalate (DOTP) and epoxidized soybean oil (ESO), in terms of in tensile strength, migration stability, solvent
以蓖麻油为原料,通过温和的酯化/环氧化反应合成了一系列环保型增塑剂。改性环氧乙酰化蓖麻油(EACO)能有效增塑聚氯乙烯(PVC),在拉伸强度、迁移稳定性、溶剂萃取稳定性和热稳定性。具体而言,环氧乙酰化蓖麻油(EACO)塑化的PVC样品的拉伸强度和断裂伸长率分别比DOTP高18.5%和10.0%,比ESO高13.9%和23.8%。挥发性、迁移性、溶剂萃取和热稳定性测试表明,碳碳双键和羟基的存在降低了增塑剂与PVC的相容性,而环氧基和酯键的存在可以提高增塑剂对PVC的增塑效果。另外,烷基可以提高PVC的增塑效果,苯环则增加PVC的刚性。基于蓖麻油的设计策略凸显了制备经济高效的增塑剂的可持续途径。