During a new study, aluminum flakes were bonded with hybrid, polyester, and PVDF base coating particles by the microwave bonding method.

在一项新的研究中，通过微波键合(microwave bonding)方法，薄铝片与杂化、聚酯及PVDF基涂层颗粒进行键合.

Aluminum flakes were bonded with three types of powder coatings.

三种粉末涂层与薄铝片进行键合.

 

 

Metallic pigmented powder coating, composed of metallic pigments and coating particles, provides coatings with metal shine and functional protection, while causing much less emission of organic solvents, unlike the traditional paint. The greatest challenge of the manufacturing step is binding the two incompatible ingredients together. However, the present industrial binding method, thermal bonding, has some inherent issues, such as pre-curing, pigment bending and high-temperature bonding.

金属颜料粉末涂料是由金属颜料和涂层颗粒组成的涂料. 与传统涂料不同，该涂料金属光泽和保护功能兼具，并能大量减少有机溶剂的排放. 该涂料制造过程中最大的挑战是将两种不兼容的成分结合在一起.然而，热粘接这种现有工业粘接方法存在预固化、颜料弯曲、高温粘接等固有问题.

Hence, in the present work, a novel approach, microwave bonding, was studied and tested. Aluminum flakes were bonded with three types of powder coatings: polyester, hybrid, and polyvinylidene fluoride (PVDF). Microwave bonding showed a more stable metal shine over the non-bonding, obtains a lower bonding temperature than the glass transition temperature, and has a much higher heating rate (ca. 17 °C/min) over the thermal bonding method. Therefore, microwave bonding is trusted to have great potential to produce coatings with highly stable metal shine efficiently.

因此，本次工作研究和测试了微波键合这种新的方法. 薄铝片与三种粉末涂层涂料结合:聚酯、杂化和聚偏氟乙烯(PVDF). 和传统热键合方法相比,微波键合具有更稳定的金属光泽，键合温度低于玻璃迁移温度，加热速率(约17°C/min)远高于热键合.因此，微波键合技术被认为具有巨大的潜力，可以有效地生产出具有高稳定金属光泽的涂层.

The study has been published in Progress in Organic Coatings, Volume 154, May 2021.

完整研究报告: Progress in Organic Coatings, Volume 154, May 2021.

图片来源: PIRO4D - Pixabay (symbol image).

 

英文原文引自: https://www.european-coatings.com/articles/2021/05/powder-coated-surfaces-with-stable-metal-shine-via-microwave-energy

翻译:九维-VL. 翻译内容未经同意不得转载.