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生物质化学工程 ›› 2010, Vol. 44 ›› Issue (1): 5-8.

• 论文 • 上一篇    下一篇

对苯二甲酸回收料改性松香聚酯多元醇的研究

常侠1, 许彬1, 聂小安1, 戴伟娣1, 徐军2   

  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:2009-07-13 修回日期:1900-01-01 出版日期:2010-01-30 发布日期:2010-01-30

Study on Rosin Polyester Polyol Modified by Recycled Terephthalic Acid

CHANG Xia1, XU Bin1, NIE Xiao-an1, DAI Wei-di1, XU Jun2   

  1. 1. Institute of Chemical Industry of Forest Products, CAF;National Engineering Lab. for Biomass Chemical Utilization;Key and Open Lab. on Forest Chemical Engineering SFA;Key Lab. of Biomass Energy and Material, Jiangsu Province, Nanjing 210042, China;2. Collage of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
  • Received:2009-07-13 Revised:1900-01-01 Online:2010-01-30 Published:2010-01-30

摘要: 对对苯二甲酸改性松香聚酯多元醇的合成工艺及产品性能进行了研究。重点探索了对苯二甲酸加入量、反应时间、反应温度、催化剂等因素对反应的影响,利用红外光谱及化学分析法对改性松香聚酯多元醇结构进行了表征;结果表明, 在松香105 g,对苯二甲酸45 g,二甘醇150 g,催化剂0.5 g,反应温度250℃,反应时间7h的条件下,松香聚酯多元醇通过对苯二甲酸的改性,产品的酸值≤5 mg/g,羟值380~420 mg/g,黏度5.5~6.5 Pa·s,外观为棕红色,与传统松香聚酯多元醇酯化时间比较,由原来的9 h缩短到7 h;改性松香聚酯多元醇硬泡各项主要质量指标均达到国家标准GB/T 20219-2006。

关键词: 对苯二甲酸, 改性, 松香聚酯多元醇

Abstract: The synthesis technique and properties of rosin polyester polyol modified by terephthalic acid was studied. The factors such as dosage of terephthalic acid, reaction time, reaction temperature and dosage of catalyst were investigated. The structure of rosin polyester polyol modified by terephthalic acid was characterized by infrared spectroscopy and chemical analysis. The pro-ducts with properties of acid value ≤5 mg/g, hydoxy value 380-420 mg/g and viscocity 5.5-6.5 Pa·s was obtained under conditions of rosin 105 g, terephthalic acid 45 g, diethylene glycol 150 g,catalyst 0.5 g, reaction temperature 250℃ and reaction time 7 h. Comparing with the traditional rosin polyester polyol technology, the eserification time was reduced from 9 h to 7 h by adding the terephthalic acid. The application test showed that the properties of the modified rosin polyol foam reached the standard of GB/T 20219-2006.

Key words: terephthalic acid, modification, rosin polyester polyol

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