PDF《蓖麻油基含硅阻燃增塑剂的合成 及其在聚氯乙烯中的应用》

林业工程学报, 2019,4(3):100-105 Journal of Forestry Engineering DOI:10.

13360 / j.issn.2096-1359.2019.03.015 收稿日期:2018-07-27 修回日期:2018-09-22 基金项目:江苏省自然科学基金(BK20161122);

国家自然科学基金(31700499). 作者简介:胡云,女,助理研究员,研究方向为生物基树脂的合成. 通信作者:周永红,男,研究员. E?mail: zyh@ icifp.cn 蓖麻油基含硅阻燃增塑剂的合成 及其在聚氯乙烯中的应用 胡云1,2 ,薄采影1 ,刘承果1,2 ,冯国东1 ,贾普友1 ,周永红1,2? (1. 中国林业科学研究院林产化学工业研究所,南京 210042;

2. 南京林业大学, 江苏省林业资源高效加工利用协同创新中心,南京 210037) 摘要:为提高增塑剂的阻燃性能,以可再生资源蓖麻油合成了一种蓖麻油基含硅阻燃增塑剂(Si?ECO),并将 其应用到聚氯乙烯(PVC)中. 首先将蓖麻油与三甲基氯硅烷反应得到中间体(Si?CO),再与双氧水、甲酸等进行 环氧化得到最终产品. 采用傅里叶红外光谱(FT?IR)和核磁共振氢谱(1 H NMR)对分子结构进行表征. 将该蓖 麻油基含硅增塑剂与 PVC 以及其他助剂进行共混注塑,得到不同含量 Si?ECO 的PVC 树脂. 以动态机械分析 (DMA)、热重(TG)以及极限氧指数(LOI)等方法测试共混树脂的热力学性能和阻燃性能;

以万能力学试验机表 征力学性能. 试验结果表明:随着 Si?ECO 阻燃增塑剂含量的增加,其热稳定性有所提高,同时残炭量也增加到 4.72%;

通过 DMA 分析可知,该蓖麻油基增塑剂 Si?ECO 与PVC 具有良好的相容性,且能有效提高树脂的阻燃性 能, 体系的 LOI 从25.0 增加到 30.7,热释放速率(HRR) 和总释放热(THR)分别为 263.14 kW/ m2 和29.5 MJ. 以 蓖麻油为基础合成具有阻燃功能的增塑剂具有广阔的发展前景. 关键词:增塑剂;

聚氯乙烯;

阻燃;

蓖麻油;

环氧化 中图分类号:TQ314.252 文献标志码:A 文章编号:2096-1359(2019)03-0100-06 Synthesis and properties of silicon?containing castor oil based plasticizer and its application in poly (vinyl chloride) HU Yun1,2 , BO Caiying1 , LIU Chengguo1,2 , FENG Guodong1 , JIA Puyou1 , ZHOU Yonghong1,2? (1. Institute of Chemical Industry of Forestry Products, Chinese Academy of Forestry, Nanjing 210042, China;

2. Co?Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, China) Abstract:Petreleum?based plasticizers such as o?benzene have been banned in many countries such as European Union, United States, Japan and South Korea,due to their toxicity to human.Therefore, the development of non?toxic and en? vironment?friendly plasticizers has become urgent. Plant oil?based plasticizers have the advantages of low toxicity, en? vironmental benign, biodegradability and recyclability. In addition, the increasing demand for fire?resisted material drives the development of novel plasticizer from biomass resources with flame retardant function. A castor oil based flame?retardant plasticizer (Si?ECO) was synthesized by reacted castor oil with chlorotrimethylsilane followed by ep? oxidation. The chemical structure of Si?ECO was confirmed by Fourier transform infrared spectroscopy (FT?IR) and nuclear magnetic resonance(1 H NMR). The castor oil?base plasticizer was mixed at different contents with PVC and other additives to obtain PVC resin. The thermal degradation and fire retardant properties of the Si?ECO/ PVC were in? vestigated by thermogravimetry analysis(TGA) and limiting oxygen index (LOI). The results showed that the thermal stability and the LOI value were increased with the increasing loading of Si?ECO and the amount of residual carbon al? so increased to 4.72%. The compatibility of the Si?ECO with PVC blends was investigated by dynamic mechanical analysis (DMA). Meanwhile, the DMA analysis showed that the resulting resin displayed single Tg , indicating a homogeneous structure of the resin. The addition of Si?ECO increased the LOI of the PVC resinfrom 25.0 to 30.7. The heat release rate (HRR) and the peak value of total heat release (THR) were 263.14 kW/ m2 and 29.5 MJ, respec? tively. With the increasing loading of flame retardant plasticizer Si?ECO, the tensile strength of the resulting resin first increased and then decreased. Modulus of elasticity showed a similar trend, and the elongation at break increased from 第3期胡云,等:蓖麻油基含硅阻燃增塑剂的合成及其在聚氯乙烯中的应用 217.23% to 326.46%. The above results have demonstrated that a variety of flame retardant plasticizers can be synthe? sized from castor oil and have potential for industrial applications. Keywords:plasticizer;