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生物质化学工程

生物质化学工程 ›› 2012, Vol. 46 ›› Issue (6): 1-6.

• 研究报告 •    下一篇

环保型增塑剂DOTP的制备及应用研究

常侠1, 聂小安1, 陈洁1, 高一苇1, 刘倩2, 许彬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. 南京林业大学 化学工程学院, 江苏 南京 210037
  • 收稿日期:2012-07-17 修回日期:1900-01-01 出版日期:2012-11-30 发布日期:2012-11-30
  • 通讯作者: 聂小安(1966-),男,研究员,博士,硕士生导师,主要从事生物质能源及材料的研究;E-mail:niexiaoan@126.com。

The Preparation and Applications of the Environmentally-friendly Plasticizer DOTP

CHANG Xia1, NIE Xiao-an1, CHEN Jie1, GAO Yi-wei1, LIU Qian2, XU Bing1   

  1. 1. Institute of Chemical Industry of Forest Products, CAF; National Engineering Lab.for Biomass Chemical Utilization; Key and Open Lab.of forest Chemical Engineering, SFA, Key Lab. of Biomass Energy and Material, Jiangsu Province, Nanjing 210042, China;2. College of Chemical Engineering, Nanjing Foresrry University, Nanjing 210037, China
  • Received:2012-07-17 Revised:1900-01-01 Online:2012-11-30 Published:2012-11-30

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摘要： 以对苯二甲酸(PTA)与对苯二甲酸回收料按一定的比例混合为原料在复配催化剂作用下合成增塑剂对苯二甲酸二异辛酯(DOTP)。讨论了不同反应条件对合成工艺的影响,确定了最佳工艺路线为:纯PTA质量分数占总原料的10%,醇酸物质的量之比2.4:1,催化剂用量0.3%,反应时间6 h,反应温度220℃;脱色剂用量为5%,脱色温度80℃,脱色时间1 h。按此工艺所制得产品体积电阻率≥9.0×1011Ω·cm。气质联用分析结果表明:对苯二甲酸二异辛酯GC含量高达95.94%。与DOP相比性能优良,耐热性高,具有一定的经济效益。

关键词: PTA回收料, 酯化, 增塑剂, DOTP

Abstract: We studied the synthesis of plasticizer DOTP using mixed PTA and PTA waste as raw materials along with compound catalyst. After comparing the effects of different reaction conditions, the optimum synthetic conditions were obtained as follows: the molar ratio 2.4:1, the amount of catalyst 0.3%, reaction time 6 h, reaction temperature 220℃; the decolourization dosage 5%, temperature 80℃, time 1 h. Under this condition, the yielded product had the volume resistivity of ≥ 9.0×1011Ω·cm. GC-MS analysis showed that phthalate dioctyl content was up to 95.94%. Compared with DOP, the product has excellent performance, higher heat resistance and more economic benefits.

Key words: PTA recycling materials, esterification, plasticizer, DOTP

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