【作者】 黄纾洁； 钟锦标； 韦春； 陆绍荣；

【Author】 HUANG ShuJie, ZHONG JinBiao, WEI Chun, LU ShaoRong (Department of material and chemical engineering, Key laboratory of nonferrous materials and new processing technology .ministry of education, Guilin University of Technology, 541004,China)

【机构】 桂林工学院材料与化学工程系桂林工学院有色金属材料及其加工新技术省部共建教育部重点实验室；

【摘要】 <正>目前脲醛树脂(UF)被广泛应用于木材工业中的胶合板、刨花板、中密度纤维板、人造板二次加工、纸制品等行业中,但一般都与木材纤维制备复合材料,与剑麻纤维共混的报道却很少。本文采用在合成中加入聚乙烯醇、三聚氰胺和硫脲对UF树脂进行改性,脲醛树脂性能指标如表1所示。并与廉价且性能优良的增强材料剑麻纤维(SF)进行共混、模压成型,制成SF／UF更多还原

【Abstract】 Sisal fiber (SF) /UF(improved) composites were prepared by blending alkali-treated SF and self-synthesized urea-formaldehyde resin (UF),and then molded at certain conditions. The mechanical properties such as impact strength of SF/UF composites in conditions of different UF content were measured; impact fracture surface and of the composites were also studied by the scanning electron microscopy (SEM). It was found that the content of UF has great influence on the mechanical properties of the composites .更多还原