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            永记讲述防腐防霉涂料的原理

            [图文] 2015-07-28

             

            永记讲述防腐防霉涂料的原理:
            ?#35805;?#38450;腐涂料的防腐原理在于化学、物理和电化学方向,以下是详细解释:
            一、防腐的化学原理:
            防腐的化学原理就?#22681;?#26377;害的酸碱物质中和为中性的无害物质,来保护防腐涂层内的材料不受腐蚀性物质的侵害。防锈涂料中经常添加一些两性化合物,例如氢氧化铝、氢氧化钡和氧化锌等,这些物质很容易和酸碱有害物发生化学作用,而实现防腐效果。
            二、防腐的物理原理:
            防腐的物理原理就是以防腐涂层将被保护材料与外界的腐蚀性物质隔离开。防锈涂料的物理原理就是使用成膜剂来获得致密的防腐涂层,来隔离防腐作用对被保护材料的伤害,例如含铅的涂料和油料反应后就能形成铅皂,来保证防腐涂层的致密性。
            三、防腐的电化学作用:
            防腐的电化学作用是指在防锈涂料中添加一些特殊的物质,这样在水分和氧气通过防锈涂料?#34987;?#21457;生反应而形成防腐离子,使钢铁等金属的表面钝化,从而阻止金属离子的溶出,到达防腐的目的,这种特殊物质中最常见的就是铬酸盐。

          1. 虹牌涂料,永记,虹牌油漆-
          2. 梭哈扑克游戏
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