| abstract |
The invention discloses a button with a light-reflecting warning function, which comprises a resin body, an inner coating and an outer coating, wherein the inner coating is prepared from the following raw materials in parts by weight: 25-35 parts of bisphenol A polycarbonate, 1-3 parts of styrene, 0.5-1.5 parts of celestite, 5-8 parts of quartz, 3-5 parts of polyacrylate, 8-12 parts of absolute ethyl alcohol, 10-20 parts of deionized water, 3-5 parts of tetramethylenediamine, 1.5-2 parts of linear alkyl benzene sulfonate and 1-2 parts of double-part A epoxy resin, wherein the thickness of the inner coating is 10-30 mu m, the refractive index is 1.58-1.65, the thickness of the outer coating is 1-5 mu m, and the refractive index is 1.85-1.98. The invention respectively prepares the inner coating and the outer coating with different thicknesses and refractive indexes through an optimal formula, and when the light rays totally emitted by the resin body meet the light rays reflected by the inner coating, the colors and the light intensity of the two light beams are changed, thereby giving a light reflecting warning function to people. |