提高性能的表面涂层技术表征

K. S. K. Reddy, V. S. Reddy, Sujitha. J, Dr. Madhuri Pydimalla*
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引用次数: 0

摘要

表面涂层随着时间的推移而发展,跟踪加工工业的需求。本次研究活动,研究粉末涂料在现有传统表面涂层技术的演变中对其在金属涂层领域,特别是办公和家用电器领域的实际应用的意义。这项工作的第一个目标是对聚合物粉末涂料与液体基涂料进行系统的比较。在第二个目标中,对聚合物涂层与添加剂填充粉末涂层进行了比较。本研究使用了各种传统基材(如铜、铝、镀锌铁、黄铜、水泥板、木块)。先将材料干磨,然后用3合1的化学剂(磷酸锌化学剂和磷酸镁化学剂)涂底漆。将制备好的基材用喷枪在面板的一侧表面涂上液体涂料,用静电喷涂在面板的另一侧表面涂上粉末涂料。然后对涂覆的面板进行各种标准(ISO)表征技术,如划痕硬度测试,柔韧性测试,厚度测试,附着力测试,抗冲击性测试等,以分析所涂涂层的有效性。因此,使用粉末涂料获得的定量和定性结果是有希望的(例如:随着负载逐渐增加,即1000-2000克,在液体涂层基材上可以注意到轻微的划痕,而粉末涂层金属板显示出更大的抗划痕损伤能力),因为测试值确定了与液体涂层相比的高强度质量和耐久性(符合标准)。此外,少量添加剂(石墨烯)的掺杂改善了粉末涂层材料的特性和质量(例如:石墨烯基粉末涂层与简单粉末涂层相比,可以承受超过2500克载荷力的划痕硬度测试)。目前的研究结果证实了粉末涂层技术的优势,也考虑了细粉流动能力的影响。本研究工作的重要前景是:,粉末涂料将站在令人兴奋的突破的门槛上,从而开辟了新的领域,能够覆盖厚钢部件甚至非金属基材。此外,最近在粉末涂料技术与防腐添加剂的进展将导致结合金属涂层提供一个独特的,高质量的外观。
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Characterization of Surface Coating Techniques for Improved Performance
Surface coating has evolved with time, tracking the demands of the processing industry. This research activity, studies the significance of powder coatings in the evolution of existing conventional surface coating technology for their practical applications in the field of metal coating, particularly office and home appliances. The first objective of this work involves a systematic comparison between polymer powder coatings with liquid-based coatings. In the second objective, a comparison between the polymer coatings with additive filled powder coating was performed. Various conventional substrates (such as copper, aluminium, galvanized iron, brass, cement plank, wood block) were used for this study. The materials were first dry scuffed and then dipped in 3 in 1 chemical (zinc phosphate chemical and magnesium phosphate) for the primer coat. The prepared substrates were surface coated with liquid paint (on one side of the panel) using spray gun and powder paint (on another side of panel) using electrostatic spraying. The coated panels are then subjected to various standard (ISO) characterization techniques such as Scratch hardness test, Flexibility test, Thickness test, Adhesion test, Impact resistance test etc to analyze the effectiveness of the coatings applied. The quantitative and qualitative results thus obtained using powder coatings were promising (e.g: As the load progressively kept increasing i.e. 1000-2000 gm, mild scratches were noticeable on liquid coated substrates whereas powder coated metal panels have shown a greater resistance to scratch damage) as the test values determined high strength quality and durability (in-line with the standards) in comparison with liquid coatings. Also, the doping of additive (graphene) in small quantity has improved characteristics and qualities of the powder coated materials (e.g: graphene based powder coating has endured scratch hardness test beyond 2500 gms load force compared to simple powder coating). The findings of the current research study has confirmed the advantage of the powder coating technology and also deliberated the effect of fine powder flow ability. The important future prospects of this research work is that., powder coatings will stand on the threshold of exciting breakthroughs thus opening new frontiers by being able to coat thick steel components and even non-metal substrates. Also, the recent advances in powder coating technology with anticorrosive additives will result in bonded metallic coatings that deliver a unique, quality appearance.
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