STRESS-INDUCED LIGHT-EMISSION MATERIAL, METHOD FOR MANUFACTURING STRESS-INDUCED LIGHT-EMISSION MATERIAL, STRESS-INDUCED LIGHT-EMISSION PAINT COMPOSITION, RESIN COMPOSITION, AND STRESS-INDUCED LIGHT-EMISSION BODY

摘要

A mechanoluminescent material is obtained by mixing a phosphate compound and europium-activated strontium aluminate particles into slurry; grinding the slurry into ground slurry; and drying the ground slurry, wherein the rate of change calculated from a formula (A-B)/A × 100 is 10% or less, where A is the strontium content in the obtained mechanoluminescent material, and B is the strontium content in the mechanoluminescent material after 168 hours of storage in an atmosphere at a temperature of 85°C and a relative humidity of 85%.