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thin films. Adhesive force and friction force of the RE thin films and silicon substrate were measured under various applied normal loads and scanning speed of AFM tip. The results showed... that the adhesive force of silicon substrate increased with relative humidity and the adhesive force of RE thin films only increased slightly with relative humidity. Research showed that surfaces with higher......
the weatherablility of external thermal insulation system(ETIS).The change rules of adhesive strength were hereby studied at different time period of atmospheric exposure tests.The experimental results show that the adhesive strength of three kinds of ETIS changes a little during high temperature-spraying water cycle,but the adhesive strength of ETIS with EPS board decreases significantly after heating......
by the sweep potential deposition technique. The surface appear-ance of Tm-Ni-Co alloy films was silver smooth and adhesive. The surfaces of Tm-Ni-Co alloy films observed by scanningelectron microscope (SEM) were uniform, adhesive and compact. The sizes of metallic grains were about 80-100nm,100-200nm, 50-60nm, and 90-120nm at 1mV·s-1, 5mV·s-1, 10mV·s-1 and 50mV·s-1, respectively. The Tm-Ni-Co......
, China摘 要:<正>Effects of low molecule polyamide (LMPA) and namometer SiO2 particles on the properties of the poly (MMA/ BA/MAA) adhesive for wearable.../BA/MAA). The optimum addition of LMPA is about 4 wt pct. By adding 3 wt pct nano-SiO2 into poly (MMA/BA/MAA)/LMPA adhesive, its properties such as the shear strength, thermal stability, wear resistance......
of the --SO3H group. Atomic Force Microscope (AFM), X-ray Photoelectron Spectrometry (XPS), and contact angle measurements were used to characterize the RE thin films. Adhesive force and friction force... loads and scanning speed of AFM tip. To study the effect of capillary force, tests were performed in various relative humidities. The results showed that the adhesive force of silicon substrate increased......
; 文献标志码:A Microstructure and properties of galvanized steel/ aluminum alloy laser-adhesive hybrid bonding ZHOU Dian-wu, DAI Ting, XU Shao-hua, LIU Jin-shui (State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body, Hunan University, Changsha 410082, China) Abstract: The fiber laser welding and corrosion resistance test with/without adhesive layer addition were carried out......
铝合金磷酸阳极化及胶接性能分析 王遵1,姜楠1,邢素丽1,曾竟成1,杨孚标1,肖加余1 (1.国防科技大学,航天与材料工程学院,长沙,410073) 摘要:采用磷酸阳极化方法对铝合金试片进行了处理并测试了其粘接性能.测试了铝合金试片表面预处理和阳极化后的性能,研究了阳极化工艺参数对接头胶接性能的影响,观察了磷酸阳极化处理后的铝合金试片的表面形貌和其与胶粘剂粘接时的粘接界面,分析了其粘接拉剪破坏的失效模式.结果表明,金属表面预处理和阳极化不影响铝合金试片的性能.阳极化处理不仅改变了铝合金胶接表面的材料组成,而且在铝合金试片粘接表面形成厚度可达90μm,凹凸不平的,多孔的膜.胶接时胶粘剂能够......
氰酸酯基耐高温低介电载体胶膜的制备与性能 吴健伟1,付刚1,匡弘1,王冠1,付春明1 (1.黑龙江省石油化学研究院,哈尔滨,150040) 摘要:为了满足现代高性能雷达天线罩结构粘接的要求,本文研制了氰酸酯基耐高温,低介电栽体结构胶膜.以烯丙基化酚醛/双马树脂改性,在保持该胶膜耐高温性能的同时,改善了室温力学性能.通过加入贮存稳定荆解决了胶膜常温贮存期差的问题.胶膜在380℃下的剪切强度大于5 MPa.测试频率为9 375 MHz时,胶膜在380℃下的介电常数变化率小于5%.实验结果表明,该胶膜可用于耐高温透波材料的结构粘接. 关键词:雷达天线罩; 氰酸酯; 稳定剂; 贮存期; 耐高温......
金属胶接接头内应力研究新进展 姚英学1,杜建军1 (1.哈尔滨工业大学机电工程学院,) 摘要:论述了金属胶接接头内应力研究的新进展,提出基于粘弹性理论胶层固化内应力的计算方法和薄膜弯曲法测定内应力的方法,以及周期性温度变化会使胶层内产生残余拉伸应力(热应力),并且分析了气泡和填充物对热应力的影响. 关键词:胶接; 固化内应力; 粘弹性; 薄膜弯曲法; 热应力; [全文内容正在添加中] ......
各向异性导电胶粘剂膜的制备及其性能研究 于洁1,王琛1,王洛礼1,黎文部2 (1.湖北省化学研究院,湖北,武汉,430074;2.武汉生物工程学院,应用化学系,湖北,武汉,430415) 摘要:采用丙烯酸酯橡胶,可交联预聚物和导电微球共混制备各向异性导电胶粘剂膜(ACF),研究了丙烯酸酯橡胶和可交联预聚物配比,丙烯酸酯橡胶分子量,可交联预聚物中环氧树脂种类,丙烯酸和环氧树脂配比等因素对ACF性能的影响.结果表明:丙烯酸酯橡胶/可交联预聚物配比为80/20~70/30,丙烯酸酯橡胶数均分子量在15万以上,采用JF-220环氧树脂,羧基/环氧基摩尔比为4/5时制得的ACF具有良好的连接性能.......
