润湿性

• The results showed that the effects of the experimental conditions and the preparation of specimens on contact angle were obvious . the additions of carbides to ti ( c , n ) solid solution could decrease contact angle of the system , the order was mo2c > tac > wc > vc > nbc , and the contact angle deceased continually with increasing the addition of other carbides or decreasing the ratio of tic in ceramics phase
  研究发现实验工艺条件及试样制备都对接触角有一定影响；在ti ( c ， n )固溶体中添加其它碳化物能够降低金属ni对ti ( c ， n )固溶体的接触角，其对润湿性改善的强弱依次为mo _ 2c tac wc vc nbc ，并且增加碳化物添加量或降低tic的含量能使接触角持续下降。
• 2 resin with bad wetness systems such as epoxy resin , polyester , alkyd , acrylic resin , operate as the following process : add the solvent - add organic bentonite powder mix and stir 10 minutes , wet enough - add the polar active agent mix and stir 5 - 10 minutes , make it swell and disperse - add resin and stir - add the surface active agent - add pigment , stir and disperse to the needed granularity - dilute to the needed viscosity main points for use methods
  2当使用润湿性差的树脂系统环氧，聚酯，短油酸树脂，丙烯酸树脂操作如下：加入溶剂混合加入有机膨润土粉末搅拌混合10分钟，使其完全润湿加入极性活化剂搅拌混合5 - 10分钟，使其膨胀，分散加入树脂混合搅拌加入表面活化剂搅拌分散至所需细度稀释至所需粘度。
• 1 resin with bad wetness systems such as epoxy resin , polyester , alkyd , acrylic resin , use compound with the surface active agent , and the thixotropic grind materials can be acceptable . operate as following process : add paint material all kind of resin and the solvent - add the organic bentonite pre - gel , stir enough - add the pigment , stir and disperse enough - dilute
  1润湿性比较差的环氧，聚酯，短油酸树脂，丙烯酸树脂等与表面活化剂合用，且触变性研磨料科被接受的情况下，按照以下步骤操作：加油漆和溶剂混合加入有机预凝胶充分搅拌分散加入颜料充分搅拌分散稀释。
• Special and easily controllable wettability of solid has attracted much interest because it will bring great convenience on our daily life as well as in many industrial and agricultural processes , for example , super - hydrophobic surfaces ( water contact angle ( ca ) larger than 150o ) have or will play a important role in prevention of adhesion of snow to antennas and windows , self - cleaning traffic indicators , cell motility
  无论是在工农业生产还是人们的日常生活中,润湿都是一种非常重要的现象,具有特殊润湿性和可控润湿性材料一直是人们关注的热点,比如超疏水材料(接触角大于150o )在窗户和天线的防雪防霜,汽车挡风玻璃的自清洁,以及生物细胞的活动等领域已经或者即将发挥极大的作用。
• Compared with untreated graphite under the same condition , the surface electric potential of treated graphite changes in part , but unlike a1 ( oh ) 3 , the oxidation ratio decreases 10 % when a1 ( oh ) 3 / graphite ( wt % ) = 10 , and the wetting angle of treated graphite hold the line , namely the wetting ability is not improved . contrasted with the hydrolyze coating way , the deposition coating way has simple technical process , lower cost , and its disadvantage , for instance , coat layer distributes unevenly , the wetting ability is not improved . furthermore , the effect of treated graphite applied in mgo - c castables are investigated
  经沉淀法改性后，石墨的表面电性发生了一定的变化，其等电点从2 3变为7 8 ，但与al ( oh ) _ 3的等电点( 8 9 )存在一定的差异；接触角测定结果则表明，经沉淀法改性后，石墨与水的接触角并没有改变，即改性石墨与水的润湿性没有明显改善；当al ( oh ) _ 3石墨( wt ) = 10时，改性石墨的氧化失重率比未改性石墨下降了约10 ，这说明经沉淀法改性后，石墨的抗氧化性得到了一定的改善。
• It costs more than the traditional way and it is hard to control the process of the reaction . these disadvantages have led to some limitations of the composites " production and research . therefore , the developing orientation of in situ composites is to search the means of lowering the cost and controlli ng the process of in situ reaction
  但外加法存在着诸如颗粒偏聚、润湿性差、界面强度结合低等缺点，而内生法由于增强颗粒是在基体内部原位反应生成，因此能克服外加法的缺点，但同时内生法所制备的金属基复合材料的成本太高、原位反应不易控制等缺点制约了复合材料的扩大应用，因此发展性能优异复合材料的出路在于寻找降低成本以及控制原位反应的措施。
• The maximal power outputs of 37 . 0 mw / cm2 and 30 . 0 mw / cm2 for the p - and n - type laminated materials respectively at the temperature difference 490 have been experimentally obtained , which are about 2 . 5 and 3 . 0 times those of - fesi2 . chemical analyses show that the interface failure between the bridge alloy and the semiconductor bi2te3 results mainly from the eutectic mixtures with low melting point and brittle compounds formed during welding and long time annealing at 190 . it is found that the electrical properties of a laminated structure are mainly controlled by the wettability of the bridge alloy on the semiconductor surface
  发现： 1 )叠层材料具有明显优于均质材料的热电性能，在490温差下， p -型和n -型叠层材料的最大输出功率分别达到37 . 0和30 . 0 ( mw / cm ~ 2 ) ，是同类型均质- fesi _ 2的2 . 5和3倍； 2 )在焊接过程和190长时间退火处理过程中，焊接过渡层合金和基体半导体(特别是bi _ 2te _ 3 )之间存在明显的元素相互扩散，从而在过渡层中形成一些低熔点共晶体和脆性化合物，这是导致叠层材料破坏的主要原因； 3 )焊接过渡层合金与半导体基体之间的润湿性是影响界面层电性能的主要因素。
• 5 . the relation between wetting property and leafing property was established , the recognization for the metallic pigment leafing property theory was deepened , and the new methods to improve leafing property were put forward . the results provide the new trains of thought for surface treatment of bronze powder
  西安理工大学硕士学位论文( 5 )确定了铜金粉润湿性和漂浮性之间的对应关系，深化了对铜金粉漂浮机理的认识，并提出了具体改善铜金粉漂浮性能的新方法，为国产铜金粉表面处理提供了新的思路。