采用塑料涂层防止汽车生锈的两项新技术正在美国进行试验:一种方法是用粉末聚酯;另一方法是用聚氯乙烯塑料溶胶,这种塑料溶胶多年来一直被用做家用地板砖的耐磨顶层涂料。 聚酯涂层不是靠使用喷涂法和浸渍法,而是靠采用静电技术镀上去的。操作时,让聚酯粉末带上负电,把待涂的金属部件接地,当金属部件通过一个喷涂 Two new technologies that use plastic coatings to prevent rust from cars are being tested in the United States: one is to use a powder polyester; the other is to use a polyvinyl chloride plastisol that has been used for many years as a household floor Wear-resistant brick top coating. Polyester coating is not by using the spray method and impregnation method, but by using electrostatic plating technology. During operation, the polyester powder is electrified negatively to ground the metal parts to be coated. When the metal parts are spray-coated