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林产化学与工业

林产化学与工业 ›› 2004, Vol. 24 ›› Issue (S1): 61-64.

• 研究报告 • 上一篇    下一篇

松香季戊四醇酯聚氧乙烯醚的表面活性研究

周永红1,2, 宋湛谦1, 许玉芝2, 谢晖2   

  1. 1. 中国林业科学研究院 林产化学工业研究所, 江苏 南京 210042;2. 南京工业大学 化学化工学院, 江苏 南京 210009
  • 收稿日期:2004-02-20 修回日期:1900-01-01 出版日期:2004-10-20 发布日期:2004-10-20

STUDY ON SURFACE ACTIVITY OF ROSIN PENTAERYTHRITOL ESTER POLYOXYLETHYLENE ETHER

ZHOU Yong-hong1,2, SONG Zhan-qian1, XU Yu-zhi2, XIE Hui2   

  1. 1. Institute of Chemical Industry of Forest Products, CAF, Nanjing 210042, China;2. College of Chemical Engineering, Nanjing University of Technology, Nanjing 210009, China
  • Received:2004-02-20 Revised:1900-01-01 Online:2004-10-20 Published:2004-10-20

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摘要： 合成了不同聚合度的松香季戊四醇酯聚氧乙烯醚(RPEO)。测定了产物的表面物理化学性能:表面张力(δ)(34.4～40.5)×10-5N/cm,临界胶束浓度(CMC)26～65mmol/L,钙皂分散指数(LSDP)4.2%～17.5%,对松节油乳化力(EP)58～184s,浊点(CP)38～75℃。研究了环氧乙烷(EO)聚合度(n)对产品表面物理化学性能的影响,随着n的增加,δ先下降,然后逐渐上升,CMC、钙皂分散力、CP、EP逐渐升高。

关键词: 松香, 季戊四醇酯, 聚氧乙烯醚, 表面活性

Abstract: A series of rosin pentaerythritol ester polyoxylethylene ether (RPEO) with different polymerization degree (n) of epoxy ethane (EO) were synthesized. Surface physicochemical properties of these products were measured. The results showed that surface tension (δ) varied from 34.4×10-5 to 40.5×10-5 (N/cm), critical micelle concentration (CMC) from 26-65(mmoL/L), lime soap dispersing power (LSDP) from 4.2% to 17.5%, emulsifying power (EP, with turpentine) from 58 s to 184 s, cloud point from 38℃ to 75℃. The (relations) between surface physicochemical properties of the products and polymerization degree of EO were first studied systematically. With the increase of n of EO, the surface activity was increased firstly, then towards stable or dropped a little, the application properties, such as EP, CP and LSDP, were improved with increasing of n, and reached balance where n equaled to 10.

Key words: rosin, pentaerythritol ester, polyoxylethylene ether, surface activity

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