▎ 摘　　要

NOVELTY - Heat triggered microcapsule comprises lubricant, polymer and surfactant. The preparation of heat triggered microcapsule comprises weighing lubricant and polymer, adding to closed glass container containing organic solvent, mixing to obtain first solution, weighing surfactant, dissolving in deionized water to obtain second solution, mixing first solution and second solution to obtain homogeneous microemulsion, volatilizing organic solvent, filtering microcapsule, washing and drying. USE - The heat triggered microcapsule is used for self moisturizing composite material (claimed). ADVANTAGE - The microcapsules breaks under specific heating temperature conditions or friction process, releases active lubricating medium, forms good lubricating oil film and improves self-lubricating efficiency of composites.