1. The invention discloses a preparation method of polymer supercritical carbon dioxide Foaming Nucleating Agent. The preparation method includes: adding ethanol solution dissolving CO2-hydrophilic substances into porous inorganic nano particles under the condition of 0.1MPa, sufficiently stirring and directly drying to obtain the polymer supercritical carbon dioxide Foaming Nucleating Agent.
2.The CO2-hydrophilic substances are ion liquid and fluorosilane or silane contained coupling agent. Mass usage of the CO2-hydrophilic substances is 8-50% of the mass of the porous inorganic nano particles. The invention further discloses application of the polymer supercritical carbon dioxide Foaming Nucleating Agent in polymer supercritical carbon dioxide foaming.
3.By the nucleating agent, foaming agent, namely supercritical carbon dioxide, can be enriched in holes and on the surface of particles, and accordingly, nucleating efficiency is high, and prepared polymer foaming material has the advantages of small foaming hole size, uniform distribution and high density.
