Synthesis and characterisation of polyurethane made from pyrolysis bio-oil of pine wood

被引：31

作者：

Gharib, Jaber ^{[1
]}

Pang, Shusheng ^{[1
]}

Holland, Daniel ^{[1
]}

机构：

[1] Univ Canterbury, Dept Chem & Proc Engn, Christchurch, New Zealand

来源：

EUROPEAN POLYMER JOURNAL | 2020年 / 133卷

关键词：

SOYBEAN OIL; CASTOR-OIL; WATERBORNE POLYURETHANE; THERMAL-PROPERTIES; STORAGE STABILITY; KRAFT LIGNIN; POLYOLS; FOAMS; CELLULOSE; PERFORMANCE;

D O I：

10.1016/j.eurpolymj.2020.109725

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

This paper investigates the manufacture of polyurethane from pyrolysis bio-oil produced from radiata pine wood. Liquid-liquid extraction was used to separate bio-oil into fractions. These fractions were reacted with methylene diphenyl diisocyanate (MDI) to produce polyurethane. For comparison, a series of polyurethanes were prepared with castor oil in a similar manner. Among the various fractions of the bio-oil, the water-insoluble fraction (often referred to as pyrolytic lignin) was found to be the most appropriate component to produce polyurethane as it is a significant fraction of bio-oil and has a high hydroxyl number, hence, is able to produce a robust film. It was found that gradual addition of the polyol to MDI helped produce a more flexible and stable polyurethane film. Water absorption of bio-oil based polyurethane was found to be higher than that of castor oil based polyurethane. However, the diffusion coefficient of water in the bio-oil derived polyurethane was lower than in castor oil-derived polyurethane. These results suggest bio-oil derived polymers may be suitable for use as protective coatings.

引用

页数：11

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