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用酸化油制备聚酯多元醇的研究

《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

Issue:
2008年05期
Page:
95-98
Column:
研究论文
publishdate:
2008-09-30

Article Info:/Info

Title:
Preparation of polyester polyols from acidic oil
Article ID:
1000-2006(2008)05-0095-04
Author(s):
HE Qin-ling FU Yun-tao CONG He-lei LIN Zhong-xiang*
College of Chemical Engineering Nanjing Forestry University, Nanjing 210037, China
Keywords:
Acidic oil Polyester polyols Polyurethane adhesive Color steel plate
Classification number :
TQ437
DOI:
10.3969/j.jssn.1000-2006.2008.05.019
Document Code:
A
Abstract:
The polyester polyols were made by the addition reaction of acidic oil derived from garbage grease with maleic anhydride first. Then the esterification reaction with diethylene glycol was done. An optimal technologcial condition was obtained. The molar ratio of acidic oil: maleic anhydride: diethylene glycol was 1: 1: 3. 3. The maleic anhydride was added at the temperature of 180℃, 195--200℃and 200--220℃ respectively, and reacted for one hour each time. Then the reaction was kept for 0. 5h at 230--240℃. The last step was esterification for 10h at 240℃ in atmospheric pressure and esterification for I h at 240℃ in vacuum. The acid value of the polyester polyols was less than 1mg/g and the hydroxyl value was 250--300mg/g. The performance of the two-component polyurethane adhesive derived from the polyester polyols reached the cementaion requirements of color steel plates and polystyrene foam plastic. It had certain advantage in production and application.

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Last Update: 2013-05-20