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第 36 卷第 1 期 精 细 化 工 Vol.36, No.1
201 9 年 1 月 FINE CHEMICALS Jan. 2019

橡塑助剂
对苯二甲酸二丁氧基乙酯增塑剂的合成及应用

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王 芳 ，刘博文 ，谈继淮 ，刘 准 ，朱新宝 1,2*
（1. 南京林业大学 化学工程学院，江苏 南京 210037；2. 江苏省醇醚工程技术研究中心，江苏 无锡
214441）
摘要：以对苯二甲酸二甲酯（DMT）和乙二醇丁醚(EB)为原料，采用酯交换一步合成法，制得含有醚键基团的对
苯二甲酸二丁氧基乙酯（DBETP）增塑剂，并通过优化得到最适宜的制备工艺为：n(EB)∶n(DMT)=6∶1，催
化剂 CaO 用量为 3.0%（以 DMT 质量为基准，下同），反应时间 3.0 h，反应温度 140℃。在该条件下，DBETP
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收率达到 93.6%。采用 FTIR 和 HNMR 对产物结构进行了表征。将 DBETP 增塑的 PVC 试样（PVC-DBETP）
和对苯二甲酸二异辛酯增塑的 PVC 试样（PVC-DOTP）进行性能对比，结果表明，PVC-DBETP 热稳定性与
PVC-DOTP 基本相当；PVC-DBETP 在蒸馏水、食醋、白酒及无水乙醇中的抽出质量损失率与 PVC-DOTP 相比
分别升高了 0.6%、1.0%、2.1%及 0.3%，在大豆油中，则降低了 1.1%；PVC-DBETP 和 PVC-DOTP 的玻璃化转
变温度（T g ）分别为 31.4 和 34.7 ℃；PVC-DBETP 与 PVC-DOTP 相比，拉伸强度提高了 5.05%，断裂伸长率
提高了 8.73%。
关键词：对苯二甲酸二甲酯；乙二醇丁醚；对苯二甲酸二丁氧基乙酯；增塑剂；橡塑助剂
中图分类号：TQ414 文献标识码：A 文章编号：1003-5214 (2019) 01-0163-06

Synthesis and Application of Plasticizer Di(2-butoxy ethanol) Terephthalate

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WANG Fang , LIU Bo-wen , TAN Ji-huai , LIU Zhun , ZHU Xin-bao 1,2*
（1. College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, Jiangsu, China; 2. Jiangsu Province
Glycol Ether Engineering Technology Research Center, Wuxi 214441, Jiangsu, China）
Abstract: A plasticizer containing ether bond, di(2-butoxy ethanol) terephthalate (DBETP), was synthesized
by one-step transesterification using dimethyl terephthalate (DMT) and 2-butoxy ethanol (EB) as raw
materials. The optimum process conditions of synthesizing DBETP were obtained as follows: n(EB)∶
n(DMT)=6∶1, dosage of catalyst CaO 3.0% (based on the mass of DMT, the same below), reaction time
3.0 h, and reaction temperature 140℃. Under these conditions, the yield of DBETP reached 93.6%. The
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product was characterized by FTIR and HNMR. Subsequently, DBETP was added to thermoplastic
polyvinyl chloride (PVC), and mechanical properties of the resulting sample (PVC-DBETP) and diiooctyl
terephthalate (DOTP) plasticized PVC (PVC-DOTP) were compared. The results showed that the thermal
stability of PVC-DBETP was basically similar to that of PVC-DOTP. The pull-out resistance of plasticized
PVC samples was performed in distilled water, vinegar, liquor and spirits, and ethyl alcohol. Compared
with that of PVC-DOTP, the mass loss rate of PVC-DBETP increased by 0.6%, 1.0%, 2.1% and 0.3%,
respectively. However, that decreased 1.1% in soybean oil. The glass transition temperature (T g) of
PVC-DBETP was 31.4 ℃, that of PVC-DOTP was 34.7 ℃. The tensile strength and elongation at break of
PVC-DBETP increased by 5.05% and 8.73% compared with that of PVC-DOTP.
Key words: dimethyl terephthalate; 2-butoxy ethanol; di(butoxy ethanol) terephthalate; plasticizer; rubber
and plastics auxiliaries
Foundation items: 948 Project of State Forestry Administration of China (2015-4-55); Advantage
Discipline Construction Project of Jiangsu University (PAPD2010118)

收稿日期：2018-01-15; 定用日期：2018-07-03; DOI: 10.13550/j.jxhg.20180044
基金项目：国家林业局 948 项目（2015-4-55）；江苏高校优势学科建设工程项目（PAPD2010118）
作者简介：王 芳（1980—），女，副教授，硕士生导师，电话：025-85427183，E-mail: wangfang@njfu.edu.cn。联系人：朱新宝
（1963—），教授，博士生导师，电话：025-85427532，E-mail：zhuxinbao@njfu.com.cn。