ENGINEERING PLASTICS FROM LIGNIN .21. SYNTHESIS AND PROPERTIES OF EPOXIDIZED LIGNIN-POLY(PROPYLENE OXIDE) COPOLYMERS

被引：73
|
作者：
HOFMANN, K
GLASSER, WG
机构：
[1] VIRGINIA POLYTECH INST & STATE UNIV, DEPT WOOD SCI & FOREST PROD, BLACKSBURG, VA 24061 USA
[2] VIRGINIA POLYTECH INST & STATE UNIV, CTR BIOBASED MAT, BLACKSBURG, VA 24061 USA
来源：
JOURNAL OF WOOD CHEMISTRY AND TECHNOLOGY | 1993年 / 13卷 / 01期
关键词：
D O I：
10.1080/02773819308020508
中图分类号：
TB3 [工程材料学]; TS [轻工业、手工业、生活服务业];
学科分类号：
0805 ; 080502 ; 0822 ;
摘要：
Epoxy resins were prepared from hydroxyalkyl lignin derivatives with varying degrees of alkoxylation. The epoxy-functional copolymers were fractionated into narrow molecular weight, chemically uniform prepolymers with good solubility. The epoxy resins were cured with diamine, and the network polymers were characterized by mechanical testing. Modulus and ultimate strength increased with lignin content and ultimate strain decreasing. The resins were comparable or superior to diglycidyl ether of bis-phenol A (DGEBA)-based (control) resins in strength.
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页码：73 / 95
页数：23
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