| abstract |
The invention provides a cross-linked polypropylene foam material and a preparation method thereof. The foam material comprises the following raw materials, matrix resin, foaming agent, antioxidant, cell stabilizer and sensitizer; its preparation method Including extrusion molding, radiation crosslinking, foaming agent impregnation and other steps, the invention uses non-polluting carbon dioxide as the foaming agent in the preparation process; compared with the traditional crosslinked polypropylene foaming material, there is no azobis Residues of formamide and its decomposition products will not cause secondary pollution and meet the requirements of green environmental protection. |