摘要
文中提出表征高分子材料表面力学性能的新概念——"表面积/面积比"(surface area/area),外力作用下材料的任何形变(压痕、挤压凸起、剪切、磨损)都可以通过"表面积/面积比"的变化来描述。相同载荷作用下不同材料"表面积/面积比"的差异,体现出材料表面强度、表面综合力学性能的差异。在分析等离子处理对超高分子量聚乙烯(UHMWPE)表面强度改性效果的实例中,证实了"表面积/面积比"概念的应用价值和应用优势。
A concept, ＂surface area/area＂, was proposed to describe the surface mechanical property of polymer materials. According to the definition of ＂surface area/area＂, any deformation under external force can be described by this concept, including indentation, shear, abrasion and extrusion bulging deformation, etc. And the different values of ＂ surface area/area＂ reflect different comprehensive mechanical properties of materials. The application advantage of this concept was confirmed through the analysis of the surface mechanical property of ultra-high molecular-weight polyethylene（UHMWPE） modified by plasma. The further study about this concept would help to explore more new approaches or technology to analyze the surface （micro-nano-range） mechanical property of polymer materials.
出处
《高分子材料科学与工程》
EI
CAS
CSCD
北大核心
2012年第7期167-170,共4页
Polymer Materials Science & Engineering
基金
国家自然科学基金资助项目(50802077,81171462)
中央高校基本科研业务费专项资金资助项目(SWJTU11CX078)
西南交通大学“希望之星”项目(2010年度)
