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Antistatic paint

An anti-static and coating technology, applied in conductive coatings, anti-corrosion coatings, anti-fouling/underwater coatings, etc. Poor durability and other problems, to achieve strong antibacterial effect, good compatibility, and meet the effect of antistatic

Active Publication Date: 2016-04-20
唐山威克涂料化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, the density of metal powder is high, and a large volume fraction is required to form a conductive path. The surface layer is easily oxidized, which will reduce or even lose electrical conductivity, and has poor corrosion resistance, thereby affecting other properties of the coating. Therefore, the application of metal powder as a conductive filler is subject to certain restrictions. Restrictions; antistatic agents have poor temperature resistance, water resistance, oil resistance, corrosion resistance, durability, and unstable antistatic performance; early antistatic coatings generally use carbon-based materials as conductive fillers, and black conductive graphite and carbon black have poor dispersion. The color of the product is black, and it is not easy to adjust to other lighter colors; with the development of science and technology, new conductive fillers such as semiconductor metal oxides and nano-conductive powders have gradually appeared, and have been applied in antistatic coatings. These materials are light in color , easy to color, enrich the color system of antistatic coatings, but when this kind of material is used alone, the addition amount is large, and the dispersion stability is poor, which will affect the performance of the coating and its coating, so it is generally used in conjunction with carbon-based materials

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] 一种抗静电涂料,其由下述重量份的物料组成:

[0019] 改性聚(3,4-乙烯二氧噻吩)-聚苯乙烯磺酸5份、芳香族聚氨酯丙烯酸酯15份、有机硅树脂10份、丙烯酸二甲氨基乙酯10份、稀释剂45份、流平剂0.5份、石墨烯15份、氯化镁5份、纳米银粉5份、有机膨润土0.5份。

[0020] 所述改性聚(3,4-乙烯二氧噻吩)-聚苯乙烯磺酸的制备方法如下:

[0021] 在温度为35℃的条件下,将磺化石墨烯、3,4-乙烯二氧噻吩与聚乙二醇分散在去离子水中,使形成的混合体系中所含聚乙二醇的浓度为0.05wt%,且磺化石墨烯,3,4-乙烯二氧噻吩,聚乙二醇的质量比为2:3:0.1,再将该混合体系的pH值调节至4.5,并以500转 / min的速度搅拌混合,同时加入氧化剂和催化剂,其中氧化剂与3,4-乙烯二氧噻吩的质量比是1:2,催化剂与3,4-乙烯二氧噻吩的质量比0.01:1,随后持续搅拌反应60h,之后除去混合反应产物中的杂质离子,即得,所述氧化剂为过硫酸钠,所述催化剂为三氯化铁。

[0022] 所述稀释剂为:水:异丙醇:乙醇(体积比)=1:7:1;

[0023] 所述流平剂为:聚二甲基硅氧烷

[0024] 将改性聚(3,4-乙烯二氧噻吩)-聚苯乙烯磺酸在高速分散机中高速剪切分散,转速1000转 / min,搅拌60min,依次将芳香族聚氨酯丙烯酸酯、有机硅树脂、丙烯酸二甲氨基乙酯、稀释剂、流平剂、石墨烯、氯化镁、纳米银粉、有机膨润土加入其中搅拌混合均匀,搅拌15min,200过滤网过滤之后,即得。

[0025] 测试涂料及成膜后相关性能,快速固化干燥,环保无毒,不发粘、不返粘,抗划伤耐磨;抗静电性能优异且持久稳定,涂料表面电阻为7.2×10 5 Ω / sq,放置一年后涂层表面电阻7.5×10 5 Ω / sq,抗静电性能持久。耐高温性能800℃,6h完好,涂层硬度5H,附着力1级,柔韧性1mm,冲击强度50kg.cm。

Embodiment 2

[0027] 一种抗静电涂料,其由下述重量份的物料组成:

[0028] 改性聚(3,4-乙烯二氧噻吩)-聚苯乙烯磺酸8份、芳香族聚氨酯丙烯酸酯20份、有机硅树脂13份、丙烯酸二甲氨基乙酯15份、稀释剂50份、流平剂0.8份、石墨烯20份、氯化镁7份、纳米银粉7份、有机膨润土0.8份。

[0029] 所述改性聚(3,4-乙烯二氧噻吩)-聚苯乙烯磺酸的制备方法如下:

[0030] 在温度为35℃的条件下,将磺化石墨烯、3,4-乙烯二氧噻吩与聚乙二醇分散在去离子水中,使形成的混合体系中所含聚乙二醇的浓度为0.05wt%,且磺化石墨烯,3,4-乙烯二氧噻吩,聚乙二醇的质量比为2:3:0.1,再将该混合体系的pH值调节至4.5,并以500转 / min的速度搅拌混合,同时加入氧化剂和催化剂,其中氧化剂与3,4-乙烯二氧噻吩的质量比是1:2,催化剂与3,4-乙烯二氧噻吩的质量比0.01:1,随后持续搅拌反应72h,之后除去混合反应产物中的杂质离子,即得,所述氧化剂为过硫酸钠,所述催化剂为三氯化铁。

[0031] 所述稀释剂为:水:异丙醇:乙醇(体积比)=1:7:1;

[0032] 所述流平剂为:聚二甲基硅氧烷

[0033] 将改性聚(3,4-乙烯二氧噻吩)-聚苯乙烯磺酸在高速分散机中高速剪切分散,转速1000转 / min,搅拌60min,依次将芳香族聚氨酯丙烯酸酯、有机硅树脂、丙烯酸二甲氨基乙酯、稀释剂、流平剂、石墨烯、氯化镁、纳米银粉、有机膨润土加入其中搅拌混合均匀,搅拌60min,200过滤网过滤之后,即得。

[0034]Test the related properties of the coating and film formation, fast curing and drying, environmental protection and non-toxic, non-sticky, non-sticky, anti-scratch and wear-resistant; excellent antistatic performance and long-lasting stability, the surface resistance of the coating is 6.9×10 5 Ω / sq, coating...

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Abstract

The invention relates to antistatic paint. The antistatic paint is prepared from modified poly(3, 4-ethylenedioxythiophene)-poly(styrenesulfonate), aromatic polyurethane acrylate, organic silicon resin, dimethylaminoethyl acrylate, a diluent, a leveling agent, graphene, magnesium chloride, nanometer silver powder and organic bentonite. The antistatic wall paint cured film has self-assembling characteristics, can be freely spread on a base, can be used for constructing a high efficiency conductive network, has high light transmittance, high conductivity and stability and has a wide application prospect.

Description

technical field [0001] 本发明属于涂料制备领域,具体涉及一种抗静电涂料。 Background technique [0002] 静电是一种由于接触或摩擦等产生的电荷聚集的现象,日常生活中,由于气候、环境、物理影响会产生静电,而静电的存在会给金属器件带来危害,甚至导致稳定性下降出现仪器故障等缺陷,或是金属输油管道等发生燃烧或爆炸等严重危害。 [0003] 抗静电涂料是具有导电和排除积累静电荷能力的功能性涂料。抗静电涂料伴随现代科学技术而发展,至今约有半个多世纪的发展历史。早在1948年,美国公布了将银和环氧树脂制成导电胶的专利,这是最早公开的导电涂料。20世纪50年代日本开始生产以银系和碳系为主的防静电涂料。20世纪60年代美、英、日等国相继研制出抗静电涂料。20世纪80年代国外防静电技术和电热涂料技术获得迅速发展,我国也在20世纪50年代开始研究和应用抗静电涂料。 [0004] 抗静电涂料分为添加型和本征型两类,本征型抗静电涂料技术尚不成熟,因此目前大量使用的抗静电涂料一般为添加型涂料。添加型抗静电涂料是在不导电的基料树脂中添加一定的导电填料实现导静电的功能,只有导电填料的体积分数达到一定的程度才能形成导电网络或通路,体现出导电的性质。常用的导电填料有:碳系材料(炭黑、石墨等)、金属粉末(银粉、铜粉、镍粉等)、半导体金属氧化物(氧化锡、氧化铁、氧化锌)、导电纳米粒子和防静电助剂等。其中金属粉末密度大,形成导电通路需要较大的体积分数,表层易氧化,会降低甚至失去导电性,而且耐腐蚀性差,从而影响涂层的其他性能,因此金属粉末作为导电填料的应用受到一定限制;抗静电剂耐温性、耐水性、耐油性、耐腐蚀性、耐久性差,抗静电性能不稳定;早期抗静电涂料一般采用碳系材料作为导电填料,黑色导电石墨和炭黑分散性差,制品颜色黑,不容易调制为较浅的其他颜色;随着科技的发展,逐渐出现了半导体金属氧化物和纳米导电粉等新型导电填料,并在抗静电涂料中得以应用,这类材料颜色浅,易于调色,丰富了抗静电涂料的颜色体系,但这类材料单独使用时添加量大,分散稳定性较差,会影响涂料和及其涂层的性能,因此一般与碳系材料配合使用。近年来出现了使用导电纤维作为导电填料的抗静电涂料,由于导电纤维直径小,长径比大,仅需很少量的导电纤维就能在涂层中形成导电的网络,可...

Claims

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Application Information

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IPC IPC(8): C09D175/14C09D183/04C09D165/00C09D7/06C09D7/00C09D5/24C09D5/10C09D5/14C09D7/12C08G61/12C09D7/47
Inventor 王英山邵晓东管莉黄倩张永超刘丽新
Owner 唐山威克涂料化工有限公司
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