硬质聚氨酯泡沫由未精制的粗甘油和技术木质素

Q2 Materials Science

Polymers from Renewable Resources Pub Date : 2018-10-05 DOI:10.1177/2041247918803187

L. Muller, S. Marx, H. Vosloo, E. Fosso-Kankeu, I. Chiyanzu

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引用次数: 9

摘要

对绿色材料的需求推动了人们对从各种生物质类型制备硬质聚氨酯泡沫(PUF)的兴趣。目前的研究旨在通过利用纸浆、造纸和生物柴油工业的副产品来增加生物基含量。分别由硫酸盐木质素、有机溶剂木质素和木质素磺酸盐在粗甘油中液化而成的生物基多元醇制备了刚性puf。泡沫抗压强度最高345 kPa，密度79 kg m−3;导热系数为0.039 W m−1 K−1，相应材料的可再生含量为44 wt%。热特性和生物降解性也进行了评价。发现工艺木质素类型在很大程度上决定了产品的性能。基于本研究中现有工业规模副产品的使用，研究结果可以有益于当前和未来的生物精炼厂对低价值副产品流的估值。

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Rigid polyurethane foams from unrefined crude glycerol and technical lignins

The need for green materials has driven interest in the preparation of rigid polyurethane foam (PUF) from various biomass types. The present study aims at increasing bio-based content by utilizing by-products from both the pulp and paper and biodiesel industries. Bio-based polyols from respective liquefaction of kraft lignin, organosolv lignin and lignosulphonate in crude glycerol were employed to prepare rigid PUFs. The highest foam compressive strength was 345 kPa with density 79 kg m−3; thermal conductivity was 0.039 W m−1 K−1 and the corresponding material had 44 wt% renewable content. Thermal characteristics and biodegradability were also evaluated. Technical lignin type was found to determine product properties to a large extent. Based on the use of existing industrial scale by-products in this study, the findings can be beneficial for present and future biorefineries in the valorization of lower value by-product streams.

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来源期刊

Polymers from Renewable Resources Materials Science-Polymers and Plastics

CiteScore

3.50

自引率

0.00%

发文量

期刊介绍： Polymers from Renewable Resources, launched in 2010, publishes leading peer reviewed research that is focused on the development of renewable polymers and their application in the production of industrial, consumer, and medical products. The progressive decline of fossil resources, together with the ongoing increases in oil prices, has initiated an increase in the search for alternatives based on renewable resources for the production of energy. The prevalence of petroleum and carbon based chemistry for the production of organic chemical goods has generated a variety of initiatives aimed at replacing fossil sources with renewable counterparts. In particular, major efforts are being conducted in polymer science and technology to prepare macromolecular materials based on renewable resources. Also gaining momentum is the utilisation of vegetable biomass either by the separation of its components and their development or after suitable chemical modification. This journal is a valuable addition to academic, research and industrial libraries, research institutions dealing with the use of natural resources and materials science and industrial laboratories concerned with polymer science.