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“721”人才培养模式下C语言程序设计学习兴趣的构建

ISSN号：1674-9324
期刊名称：《教育教学论坛》
时间：0
分类：TQ342.742[化学工程—化纤工业] TB332.01[一般工业技术—材料科学与工程]
作者机构：[1]College of Chemistry and Chemical Engineering, Northeast Petroleum University, Daqing 163318, China, [2]Chemical and Biomolecula r Engineering, The University of Akron, Ohio, USA)
相关基金：Funded by the National Young Top Talents Plan of China（2013042）; the National Science Foundation of China（21676052,21606042）; the Science Foundation for Distinguished Young Scholars of Heilongjiang Province（JC201403）; the Natural Science Foundation of Heilongjiang Province（E2015034）

关键词：碳纤维/环氧树脂复合材料, 纳米复合材料, 纳米碳纤维, 摩擦学性能, 表面功能化, 分散, 三乙氧基硅烷, 环氧树脂基体, polymer-matrix composites carbon nanofibers surfaces functionalization friction and wear morphology

中文摘要：

碳 nanofibers (CNF ) 的表面 functionalization 被执行， i e， CNF 第一被氧化然后表面经由一个集会方法是由 3-Aminopropyltriethoxysilane (APTES ) 的 silanized。一种新类型高穿抵抗 s-CNFs/epoxy 合成被制作由在原处反应。FTIR 光谱学被用来检测 silane 在 CNF 的表面上生产的功能的组的变化。tribological 性质和微观结构修改，未修改的 CNFs/epoxy composites 分别地被学习。expremental 结果显示 APTES covalently 成功地被连接到 CNF 的表面并且在环氧基树脂矩阵改进 CNF 的分散。磨擦系数和 s-CNFs/epoxy composites 的 wear 率是比在一样的负担下面的 u-CNFs/epoxy composites 的那些显然低的。调查也显示磨料穿主要为 u-CNFs/epoxy 穿机制合成，为在一样的滑动下面合成的 s-CNFs/epoxy 与细微粘合剂穿穿状况。

英文摘要：

Surface functionalization of carbon nanofibers（CNFs） was carried out, i e, CNFs were firstly oxidized and then the surface was silanized by 3-Aminopropyltriethoxysilane（APTES） via an assembly method. A new kind of high wear resistance s-CNFs/epoxy composite was fabricated by in-situ reaction. FTIR spectroscopy was used to detect the changes of the functional groups produced by silane on the surface of CNFs. The tribological properties and microstructures of modified and unmodified CNFs/epoxy composites were studied, respectively. The expremental results indicate that APTES is covalently linked to the surface of CNFs successfully and improves the dispersion of CNF in epoxy matrix. The friction coefficients and the wear rates of s-CNFs/epoxy composites are evidently lower than those of u-CNFs/epoxy composites under the same loads. Investigations also indicate that abrasive wear is the main wear mechanism for u-CNFs/epoxy composite, with slight adhesive wear for s-CNFs/epoxy composite under the same sliding wear condition.

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