Preparation of Healable Shellac Microcapsules and Color-Changing Microcapsules and Their Effect on Properties of Surface Coatings on Hard Broad-Leaved Wood Substrates

In order to protect the wood surface and improve properties of coatings, microcapsules with healable discoloration functions are produced, their function is obtained using shellac, which can be cured at room temperature, as repairing agent. this paper, self-made shellac color-changing were added varnish in different proportions form composite coating on a board, color difference was measured temperatures study influence degree substrate. The effect performance coatings board studied by scratching utility knife observing process repair. optimal sample selected from orthogonal experiment for independent experiment. roughness, hardness, infrared spectrum, scanning electron microscopy tested, content further investigated. results show that have based boards, inhibit microcapsules. Composite repair cracks boards. cases where self-repair coating, best when powder 15.0%.