摘要
以木质素纤维(LF)为改性剂,对空心微珠(HGB)/环氧树脂(EP)复合材料进行改性,制备木质素纤维(LF)/空心微珠(HGB)/环氧树脂(EP)三元复合材料。分析了不同LF含量下复合材料的应力-应变曲线,并根据材料破碎区域的SEM照片,分析了LF提升复合材料压缩性能的原因。结果表明:当加入3 wt%LF时,LF能较好地延缓材料裂纹的扩展,从而提升材料的压缩性能。改性后的材料压缩强度、压缩模量与回弹率分别达到65.97 MPa、1.31 GPa和81.3%,与改性前的材料相比提升了28.3%、37.4%和31.7%。
Lignin fiber(LF)/hollow glass bead(HGB)/epoxy resin(EP)ternary composites were prepared by modifying hollow glass bead/epoxy resin composites with lignin fiber as modifier.By analyzing the stress-strain curves of the composites with different LF content,and according to the SEM photos of the broken area of the materials,the reason for the improvement effects of LF on compressive properties of the composites was analyzed.The results showed that when 3 wt%LF is added,LF could better retard the expansion of cracks in the material,thus improving the compression properties of the material.The compressive strength,compressive modulus and resilience of the modified material were 65.97 MPa,1.31 GPa,and 81.3%respectively,which improved by 28.3%,37.4%,and 31.7%compared to the original material.
作者
吴哲
赵帅
张杨
杨春梅
姜海峰
WU Zhe;ZHAO Shuai;ZHANG Yang;YANG Chun-mei;JIANG Hai-Feng(College of Mechanical and Electrical Engineering,Northeast Forestry University,Harbin 150040,Heilongjiang,P.R.China;College of Science,Northeast Forestry University,Harbin 150040,Heilongjiang,P.R.China)
出处
《林产工业》
北大核心
2022年第3期1-5,共5页
China Forest Products Industry
基金
中央高校基本科研业务费专项资金(2572015CB10)
国家自然科学基金(52105434和31200434)
中国博士后基金(2013M531007)。
作者简介
张杨,女,博士,副教授,研究方向为材料模拟计算,E-mail:zhangyangmath@163.com;通讯作者:吴哲,男,博士,副教授,研究方向为复合材料设计,E-mail:wuzhepersonal@126.com。
