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氟碳油漆标准要求的优异性能探讨

作者:admin 来源: 日期:2014/12/31 15:36:17 人气: 标签:氟碳油漆
氟碳油漆标准要求的优异性能探讨聚胺(PA NI因其独特的性能和特点,如轻质、化学稳定性高、环境稳定性好、结构的多样性和独特的掺杂机理、导电率高以及可逆氧化还原特性等特点,已被公认为当今导电聚合物中最具商业代表性、最有大规模工业化应用前景的导电高分子材料。
Polyamine (PA NI because of its unique properties and characteristics, such as diversity of lightweight, high chemical stability, excellent environmental stability, structure and unique doping mechanism, high conductivity and reversible redox properties, has been recognized as the conducting polymer conductive polymer materials in the most representative, most commercial a large-scale industrial application prospect.
导静电氟碳油漆涂料应用方面,当PA NI添加量为5%~8%时,可达到导电填料40%导电效果,如以环氧树脂为基料,PA NI添加量为5%时,涂层表面电阻可达107Ω,电导率达10-7S/m已能满足导电涂料的标准要求。聚胺又是一种优良的防腐材料,对金属底材具有优异的防腐作用。
By the application of electrostatic coating, when PA NI was added to 5%~8%, can achieve the 40% conductive effect of conductive filler, such as epoxy resin as binder, PA NI dosage of 5%, up to 107 ohm resistance coating on the surface, the conductivity up to 10-7S/m has been able to meet the requirements of conductive coating standard. Polyurethane is a kind of excellent anticorrosion material, material has excellent antiseptic effect on metal substrate.
其防腐机理是聚胺与金属界面形成一层致密的金属氧化膜,使金属的电极电位钝化;聚胺与金属界面产生一个电场,该电场的方向与电子传递方向相反,阻碍电子从金属向氧化物的传递,相当于一个电子传递的屏障;聚胺又是铁基金属的有效缓蚀剂,可明显降低腐蚀速率。
The anticorrosion mechanism of polyamine and metal interface is formed a layer of compact metal oxide film, so that the electrode potential of metal passivation; creates a field of polyamine and metal interface, the direction of the electric field and electron transfer in the opposite direction, hinder the electron transfer from the metal to oxide, the equivalent of a electron transport barrier; polyamine it is an effective inhibitor for ferrous metal, can significantly reduce the corrosion rate.
因此,掺杂聚胺对提高聚天门冬氨酸酯的防腐性有一定作用。本研究采用掺杂聚胺和纳米ATO组成复合导电体系,基本配方中其他因素不变的条件下,PA NI和ATO质量比变化对涂膜表面电阻率的影响见表
Therefore, doped polyamine has a certain effect on improving the corrosion resistance of polyaspartic acid ester. This study uses doped polyamine and nano ATO conductive composite system composed of constant other factors, basic formula under the condition of PA, NI and ATO mass ratio of change impact on coating surface resistivity table
7表7PA NI与ATO质量比对表面电阻的影响表7PA NI与ATO质量比对表面电阻的影响 由表7可见:基本配方中,当单独采用ATO或PA NI且用量相等的条件下,测得涂膜的表面电阻
Effects of NI and ATO in Table 7 of 7PA mass ratio of surface resistance of the table 7PA NI and the mass ratio of ATO surface resistance can be seen from table 7: basic formula, when using ATO or PA alone and dosage of NI under the condition of the same surface, measured resistance coating
ATO>PA NI即PA NI导电性好于ATO当mATO∶mPA NI=3∶3~4∶2时,氟碳油漆涂膜表面电阻率既满足了导电涂料的标准要求,也兼顾了涂膜隔热性、防腐性的要求。3结语 1聚天门冬氨酸酯涂料是脂肪族异氰酸酯和聚天门冬氨酸酯交联反应的产物。
ATO > PA NI that PA NI good conductivity in ATO when mATO: NI=3: 3~4: mPA 2, coating the surface resistivity of conductive coatings not only satisfy the requirements of standard, but also take into account the coating insulation, anti-corrosion requirements. 3 conclusion 1 polyaspartic coatings is a product of aliphatic isocyanate and polyaspartic ester crosslinking reaction.
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