Chemical Industry and Engineering Progress ›› 2018, Vol. 37 ›› Issue (S1): 173-180.DOI: 10.16085/j.issn.1000-6613.2018-0278

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Synthesis of ELCO and its plasticizing effects on PVC

LI Ke1, JIANG Jianchun1,2, NIE Xiao'an1,2, CHEN Jie1   

  1. 1 Institute of Chemical Industry of Forest Products, CAF, National Engineering Laboratory for Biomass Chemical Utilization, Key and Open Laboratory on Forest Chemical Engineering, SFA, Nanjing 210042, Jiangsu, China;
    2 Institute of New Technology of Forest, CAF, Beijing 100091, China
  • Received:2018-01-31 Revised:2018-02-26 Online:2018-12-13 Published:2018-11-30

环氧低热油的制备及其增塑性能

李科1, 蒋剑春1,2, 聂小安1,2, 陈洁1   

  1. 1 中国林业科学研究院林产化学工业研究所, 生物质化学利用国家工程实验室, 国家林业局林产化学工程重点开放性实验室, 江苏省生物质能源与材料重点实验室, 江苏 南京 210042;
    2 中国林业科学研究院林业新技术研究所, 北京 100091
  • 通讯作者: 李科(1985-),男,博士研究生,助理研究员,主要从事生物质能源与材料开发研究。
  • 作者简介:李科(1985-),男,博士研究生,助理研究员,主要从事生物质能源与材料开发研究。E-mail:liketaiping@163.com。
  • 基金资助:
    江苏省生物质能源于材料重点实验室科研业务费(JSBEM-S-201704)及国家自然科学基金(51761145014)项目。

Abstract: Choose soybean oil as raw material which are usually to synthesize ESO and EFAME, use GC-MS measure the component and content, and used transesterification, epoxidation reaction, synthesized an epoxy plasticizer-epoxy low calorie oil(ELCO), and the performances of the plasticizing effects on PVC is tested. The results show that:The content of the unsaturated fatty acid reaches above 80%, it's perfectly suitable for synthesizing high epoxide number plasticizer; The content of monoacetate triglyceride in LCO would be maximum when the mole ratio of soybean oil to glyceryl triacetate is 1:1; In addition, pass the test of physical and chemical properties, DMA, film stretching, TGA-FT-IR, TGA-MS and thermal degradation kinetics. The results show that compared with ESO, ELCO has lower Tg(ELCO is -0.77℃, ESO is 6.13℃) and greater breaking elongation(ELCO is 370.56%, ESO is 321.11%); compared with EFAME, ELCO has higher flash point, lower heating loss and higher thermal stability. So ELCO is a better plasticizer product.

Key words: plasticize, epoxidation, ELCO, PVC, soybean oil

摘要: 选用常用来合成环氧大豆油和环氧脂肪酸甲酯的大豆油为原料,运用GC-MS联用仪测定了其组成及含量,并通过酯交换、环氧化等工艺合成了具有环氧结构的环氧长短链酰基甘油酯(环氧低热油);并对其作为聚氯乙烯增塑剂的各项性能进行了研究。结果表明,大豆油不饱和脂肪酸含量达88.5%,当其与三乙酸甘油酯在物质的量之比为1∶1的情况下可得到以二脂肪酸单乙酸酯为主要成分的低热油;此外,通过物化性能、动态热机械分析、薄膜拉伸、热重-红外-质谱及热分解动力学等手段分析,结果表明环氧低热油的玻璃化转变温度为–0.77℃,低于环氧大豆油的6.13℃;其断裂伸长率为370.56%,也高于环氧大豆油321.11%;与环氧脂肪酸甲酯相比具有更高的闪点、较少的加热减量和更优良的热稳定性。所以环氧低热油是一种较为优良的增塑剂产品。

关键词: 增塑剂, 环氧化, 环氧低热油, 聚氯乙烯, 大豆油

CLC Number: 

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