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富马酸用于去除金属表面的油污有效果吗?
来源:http://www.jnjrh.com 日期:2020-01-09 发布人:admin
  在喷涂金属表面之前,有必要清除表面的油污。除油方法可分为有机溶剂除油、机械除油、化学除油、超声波除油等。富马酸属于化学除油,其主要机理如下。
  Before spraying metal surface, it is necessary to remove oil stain on the surface. Oil removal methods can be divided into organic solvent oil removal, mechanical oil removal, chemical oil removal, ultrasonic oil removal, etc. Fumaric acid belongs to chemical degreasing, and its main mechanism is as follows.
  金属表面喷涂前,需要进行表面的除油工作。除油方法可分为有机溶剂除油、化学除油、超声波除油、机械除油等。富马酸属于化学除油,其主要机理解释如下:
氨基磺酸生产厂家
  Before spraying metal surface, it is necessary to remove oil from the surface. Oil removal methods can be divided into organic solvent oil removal, chemical oil removal, ultrasonic oil removal, mechanical oil removal, etc. Fumaric acid belongs to chemical oil removal, and its main mechanism is explained as follows:
  1. 根据钢板上油的化学性质,可分为皂化和非皂化两类。任何由不溶于水但密度轻的油腻物质制备的反丁烯二酸称为油脂。其主要成分是脂肪(甘油三酯)占0.95以上,这种脂肪和碱作用分解成可溶于水(肥皂)和甘油的脂肪酸盐,属于皂化类。矿物油是烃类的混合物,不溶于水时不皂化。
  1. According to the chemical properties of the oil on the steel plate, it can be divided into saponification and non saponification. Any kind of fumaric acid, which is made from a kind of greasy substance that is insoluble in water but light in density, is called grease. Its main component is fat (triglyceride) accounting for more than 0.95. This kind of fat and alkali can be decomposed into fatty acid salt soluble in water (soap) and glycerin, which belongs to saponification class. Mineral oil is a mixture of hydrocarbons that do not saponify when insoluble in water.
  2. 反丁烯二酸在去油溶液中的碱和反丁烯二酸的作用下分解生成甘油和硬脂酸钠,易溶于水。二是通过表面活性物质乳化皂化和非皂化油脂,去除工件表面的各种油渍。所谓乳化,是指除油溶液中的碱只能使金属表面的非皂化油膜产生破裂或聚合物油滴,不能干净地去除。乳化剂(即表面活性剂)的乳化作用可以防止油渍的相互聚合,使其变成很小的油珠悬浮在碱性溶液中,达到去油的目的。
  2. Under the action of alkali and fumaric acid in deoiling solution, fumaric acid decomposes into glycerin and sodium stearate, which are easily soluble in water. The other is to remove all kinds of oil stains on the surface of workpieces by emulsifying saponified and unsaponifiable grease with surfactant. The so-called emulsification refers to that the alkali in the oil removal solution can only make the unsaponifiable oil film on the metal surface crack or polymer oil drop, which can not be removed cleanly. The emulsification of emulsifier (surfactant) can prevent the oil stains from polymerizing with each other, and make them become very small oil beads to be suspended in the alkaline solution, so as to achieve the purpose of oil removal.
  以上是氨基磺酸生产厂家介绍富马酸在去除金属表面油污中的应用。这种脱脂方法效果好,能清除金属表面的油脂。与其它脱脂方法相比,成本非常低。
  The above is the application of fumaric acid in the removal of oil stains on the metal surface introduced by the manufacturer of sulfamic acid. The degreasing method has good effect and can remove the grease on the metal surface. Compared with other degreasing methods, the cost is very low.