PVC增塑剂偏苯三酸基聚酯的研究  

Study of Trimellitic Acid Polyester for PVC Plasticizer

作　　者：苗红艳 顾丹 蒋平平 MIAO Hongyan;GU Dan;JIANG Pingping(School of Chemical and Ma＋terials Engineering,Jiangnan University,Wuxi 214122,China)

机构地区：[1]江南大学化学与材料工程学院,江苏无锡214122

出　　处：《中国塑料》2018年第8期111-115,共5页China Plastics

摘　　要：采用"二步法"将偏苯三酸酐(TMA)和甘油(Gl)经酯化、缩聚反应得到环保、可生物降解的偏苯三酸聚酯(PGl-TMAI)。将合成的P-GI-TMAI与邻苯二甲酸(2-乙基己基)酯(DOP)分别添加到聚氯乙烯(PVC)树脂中进行塑炼实验,研究2种增塑剂与PVC树脂的相容性能、塑炼试片的力学性能以及耐迁移性能。结果表明,与DOP相比,P-GlTMAI与PVC的相容性较好;且前者塑炼试片的拉伸强度达18.99 MPa,断裂伸长率为454.89%;在挥发性和抽出性试验中,P-Gl-TMAI制备的试片分别仅有3.02%和15.31%的质量损失率,其韧性与耐迁移性均高于DOP。In this study, an ecological friendly and biodegradable trimellitic acid polyester （P G1 TMAI） plasticizer was synthesized by the esterification and polycondensation reactions between trimellitic anhydride （TMA） and glycerin （GI）. The as prepared P GI TMAI was introduced into poly（vinyl chloride） （PVC） resin, and then the compatibility, mechanical properties and migration resistance of the resulting compounds were investigated. Moreover, the dioctyl phthalate （DOP） plasticizer as a reference was also used for a comparative investigation. Compared to DOP, PGI TMAI exhibited some small holes on the surface of test panel, indicating that P GI TMAI was more compatible with PVC. The PVC compound plasticized by P GI TMAI achieved the tensile strength of 13.99 MPa and elongation at break of 454.89%. The results obtained from volatility and extraction tests indicated that there were only 3.02 % and 15.31 % of mass loss rate for the compounds plasticized by P GI TMAI, indicating much better impact and migration resistance that those by DOP.

关 键 词：聚酯增塑剂 偏苯三酸酐 耐迁移性能 相容性 力学性能 

分 类 号：TQ314.252[化学工程—高聚物工业]