| abstract |
The invention discloses a rigid foam packaging material and a preparation method thereof. The packaging material is prepared from polymethylene polyphenyl isocyanate, a defoaming agent, polyether, organic tin, triethylene diamine, TCEP, distilled water, dichlorofluoroethane, dimethyl cyclohexyl amine and hexahydrotriazine; the product density ranges from 0.034 g/cm<3> to 0.038 g/cm<3>, the tensile strength ranges from 250 MPa to 290 MPa, compression deformation ranges from 3.5% to 5.5%, the compression strength ranges from 240 MPa to 280 MPa, the heat conductivity ranges from 0.02 W/(m.K) to 0.024 W/(m.K), the bonding strength of the product ranges from 310 MPa to 350 MPa, the raw materials are simple and easy to obtain, the preparation method is simple, and the elongation ranges from 140% to 180%. |