中国塑料 ›› 2014, Vol. 28 ›› Issue (01): 79-83 .DOI: 10.19491/j.issn.1001-9278.2014.01.017

• 助剂 • 上一篇    下一篇

甘油支化聚酯聚氯乙烯增塑剂的制备与性能研究

张彩芹 蒋平平 董玉明 苗红艳   

  1. 江南大学 江南大学 化学与材料工程学院 江南大学 江南大学
  • 收稿日期:2013-09-22 修回日期:2013-10-16 出版日期:2014-01-26 发布日期:2014-01-26

Preparation and Properties of Glycerin Branched Polyesters as Plasticizer for PVC

JIANG Ping-Ping   

  • Received:2013-09-22 Revised:2013-10-16 Online:2014-01-26 Published:2014-01-26
  • Contact: JIANG Ping-Ping

摘要: 通过熔融缩聚的方法,以己二酸、二元醇、甘油作为第三单体合成了含有支化结构的聚酯增塑剂,探究了不同二元醇合成的支化聚酯,并按照一定配方将聚酯加入到聚氯乙烯(PVC)中制得PVC试片,利用傅里叶红外光谱分析、热重分析、高效凝胶色谱分析对支化聚酯进行了表征,对PVC试片进行拉伸性能、热稳定性能、耐抽出性能等性能测试。结果表明,二元醇为二缩三乙二醇时,产品相对分子质量为4871,分散系数为2.26,黏度为11.20 Pa·s,支化聚酯增塑的PVC试片断裂伸长率高于400 %,吸水量低,热稳定性高,耐抽出性能良好。

关键词: 制备, 聚氯乙烯, 增塑剂, 支化聚酯, 甘油

Abstract: Polyesters with a branched structure were synthesized from adipic acid, a glycol and glycerin, and used in PVC as plasticizers. Using FTIR, TG, and GPC, the tensile properties, thermal stability, and extraction resistance, the PVC/polyester systems were studied. When triethylene glycol was used as the dibasic alcohol,the molecular weight, dispersion coefficient, and viscosity of the products were 4900 g/mol, 2.26, and 11.198 Pa·s, respectively. The plasticized PVC samples showed low water absorbing capacity, high thermal stability, and good extraction resistance.

Key words: preparation preparation preparation, poly(vinyl chloride), plasticizer, branched polyester, glycerin