The invention relates to an electromagnetic shielding powder coating, which is resistant to corrosion, wear and resistance, and its preparation method. The material consists of 90 parts of fluorosilicic powder, 5 hollow glass beads, 30 phr, 5 polyaniline powder, 30 parts, 0 compatibilizer 5, 0 cross-linking agent 5, 1 copies of leveling agent, 5 brightener, and brightener. The added power of 0.1 is composed of 1 parts, which is prepared by the following methods: according to the distribution ratio of each component, the raw materials of each component are mixed evenly, and then the mixed ingredients are added to the twin screw extruder, and the electromagnetic screen which is resistant to corrosion, wear-resistant and high temperature resistance is obtained at 80 degrees C 200. A powder coating. The material has the advantages of good corrosion resistance, good wear resistance, high temperature resistance, high strength, light density, low dielectric constant and small dielectric damage. It can be widely used in the field of weapon equipment, information industry and other industries that need corrosion resistance, wear resistance, high temperature resistance and electromagnetic shielding.
【技术实现步骤摘要】
一种耐腐蚀耐磨耐高温的电磁屏蔽粉末涂料及其制备方法
本专利技术涉及粉末涂料制备领域,具体地说,涉及一种耐腐蚀耐磨耐高温的电磁屏蔽粉末涂料及其制备方法。
技术介绍
随着武器装备和信息行业的迅猛发展,装备涂装的要求越来越高,具体要求如下:①耐腐蚀性能佳,子弹或炮弹导致的烟雾具有一定的腐蚀性;②耐磨性佳:子弹或炮弹的速度很快,容易导致弹道或炮弹筒的磨损;③耐高温:子弹或炮弹的发射温度不会使炮弹筒的涂层熔化;④密度轻;⑤介电常数和介电损耗小,以满足新型雷达等对电磁屏蔽的要求。聚苯胺具有结构多样化、环境稳定性好、合成简易、单体成本低廉、物理性能优异、耐高温等优点,特别是它具有独特的质子酸掺杂机制和优良的导电性能,被认为是最有实际应用前景的耐腐蚀剂和电磁屏蔽材料。聚苯胺基涂料的防腐蚀机理主要有:①所形成的涂层隔绝了空气、腐蚀性物质与金属基材的接触;②聚苯胺可使金属基材的电化学腐蚀电位正移而达到贵金属的电极电位;③聚苯胺对金属基材发生钝化而相应形成致密稳定的氧化层;④聚苯胺还可以与金属发生类似的相互作用,这使得聚苯胺在很少用量的条件下,即可达到良好的防腐蚀效果,显示出良好的催化 ...
【技术保护点】
一种耐腐蚀耐磨耐高温的电磁屏蔽粉末涂料,其特征在于,包括如下组分:
【技术特征摘要】
1.一种耐腐蚀耐磨耐高温的电磁屏蔽粉末涂料,其特征在于,包括如下组分:2.权利要求1所述耐腐蚀耐磨耐高温的电磁屏蔽粉末涂料,其特征在于,所述氟硅材料粉末为氟硅改性环氧树脂粉末、氟硅改性丙烯酸树脂粉末、氟硅改性聚酯粉末、氟硅橡胶粉末中的至少一种。3.权利要求1所述耐腐蚀耐磨耐高温的电磁屏蔽粉末涂料,其特征在于,所述空心玻璃微珠的直径为5-500μm,密度为0.18-0.64g/cm3。4.权利要求1所述耐腐蚀耐磨耐高温的电磁屏蔽粉末涂料,其特征在于,所述聚苯胺粉末为本征态聚苯胺粉末、翠绿亚胺态聚苯胺粉末、全氧化态聚苯胺粉末和全还原态聚苯胺粉末的至少一种,聚苯胺粉末的直径为1nm-100μm。5.权利要求1所述耐腐蚀耐磨耐高温的电磁屏蔽粉末涂料,其特征在于,所述相容剂为马来酸酐接枝物、硅烷偶联剂、钛酸酯偶联剂、铝酸酯偶联剂中的至少一种。6.权利要求1所述耐腐蚀耐磨耐高温的电磁屏蔽粉末涂料,其特征在于,所述交联剂为有机胺类、过氧化物类和硫磺类中的至少...
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