降级(电信)
碱度
材料科学
复合材料
椰壳
水泥
半纤维素
微观结构
碱性水解
水解
化学
电信
生物化学
有机化学
计算机科学
作者
Julian L. Stapper,Florent Gauvin,Hjh Jos Brouwers
标识
DOI:10.1016/j.conbuildmat.2021.124906
摘要
Natural fibres are regarded as a potential bio-based alternative to traditional fibre material used in cement-based composites. A well-known complication of natural fibres is their instability the alkaline cement environment, which causes degradation. This work presents a study of mechanical performance, microstructure, and composition of coir fibres exposed to alkalinity, focusing on short-term degradation mechanisms of degradation. Fibre performance was found to be unrelated to the alkalinity of the medium and only hemicellulose was found to readily degrade in a highly alkaline environment. It was therefore concluded that alkaline hydrolysis is not the main factor involved in natural fibre degradation.
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