Influence of Photochromic Microcapsules on Properties of Waterborne Coating on Wood and Metal Substrates

With the development of economy and science technology, consumers have put forward higher requirements for functionality surface coatings on wood products metal products, which requires us to endow traditional with new functions. Innovative research has been a hotspot in recent years, combination microencapsulation technology is direction attracting much attention. In this paper, kind spirooxazine color-changing microcapsules containing photochromic purple dye was selected explore effect different loadings properties coatings. The were added waterborne coating 5.0%, 10.0%, 15.0%, 20.0% 25.0%. coated Tilia europaea boards aluminum alloy plates optical properties, mechanical cold liquid resistance aging results showed that had good property substrate substrate. When loading 15.0% comprehensive performance good. color difference before after photochromism 51.0 62.0, glossiness 7.1% 15.9%, hardness 3H, adhesion grade 1, impact 4 kg·cm, roughness 1.2 ?m 0.9 1. show microcapsule can paint reversible change function improve some coating, indicates composite prepared study be used finishing certain value application potential.