摘要
为制备适用于海岸工程领域的高耐冲蚀型木塑复合材料,基于旋转射流技术研究了丁苯橡胶(SBR)对竹粉/高密度聚乙烯(HDPE)复合材料冲蚀磨损特性的影响。结果表明,引入SBR可以提升竹粉/HDPE复合材料的硬度和冲击强度(硬度最大增幅1.3%、冲击强度最大增幅18.8%),并优化竹粉/HDPE复合材料中纤维和基体的两相界面质量。较之未引入SBR的竹粉/HDPE复合材料,引入SBR的竹粉/HDPE复合材料的抗冲蚀性显著提升,其最大冲蚀率发生于冲蚀靶距1.0 cm和冲蚀时间180 s处。较之未冲蚀面,竹粉/HDPE复合材料冲蚀面主要表现出纤维破碎和基体脆性断裂,以及氧含量相对增加和羟基伸缩振动加强等磨损特征。引入SBR不改变旋转射流对竹粉/HDPE复合材料的冲蚀机理。
To prepare wood–plastic composites with high erosive wear resistance suitable for coastal engineering applications,the effects of styrene butadiene rubber(SBR)on the erosive wear characteristics of bamboo fiber/highdensity polyethylene(HDPE)composites were investigated through swirling water jet technique.The results show that the inclusion of SBR can improve the hardness and impact strength of bamboo fiber/HDPE composites(the maximum increase of 1.3%in hardness and 18.8%in impact strength).Moreover,the two-phase interfacial quality between the fibers and matrix components of these composites is optimized.The bamboo fiber/HDPE composites filled with SBR present significantly higher erosive wear resistance than that without SBR,with the maximum erosive wear rate achieved at a shooting distance of 1.0 cm and an erosion duration of 180 s.Compared with the un-erosive surfaces,the erosive surfaces of the bamboo fiber/HDPE composites mainly show the wear characteristics of fiber pulverization and matrix brittle fracture as well as a relative increase in the oxygen content and strengthening of hydroxyl stretching vibration.The inclusion of SBR does not change the erosive wear mechanism of swirling water jet on bamboo fiber/HDPE composites.
作者
姜良朋
尹仟慧
付菁菁
李晓凯
张西望
杜鹏
Liangpeng Jiang;Qianhui Yin;Jingjing Fu;Xiaokai Li;Xiwang Zhang;Peng Du(School of Mechanical Engineering,Anhui University of Science and Technology,Huainan 232001,China;Nanjing Institute of Agricultural Mechanization,Ministry of Agriculture and Rural Affairs,Nanjing 210014,China)
出处
《高分子材料科学与工程》
EI
CAS
CSCD
北大核心
2023年第1期119-126,共8页
Polymer Materials Science & Engineering
基金
安徽高校自然科学研究重点项目(KJ2020A0283),国家自然科学青年基金资助项目(51804007)。
关键词
丁苯橡胶
竹粉
高密度聚乙烯
木塑复合材料
冲蚀磨损
styrene butadiene rubber
bamboo fiber
high-density polyethylene
wood-plastic composites
erosive wear
