Rigid polyurethane foam material on basis of polyurethane insole degradation products and method for preparing rigid polyurethane foam material

Abstract

The invention discloses a rigid polyurethane foam material on the basis of polyurethane insole degradation products and a method for preparing the rigid polyurethane foam material. Rigid polyurethane foam combined polyether is prepared from the degradation products instead of 15-25% polyether polyol, the degradation products are directly obtained by means of alcoholysis of polyurethane insoles, and the rigid polyurethane foam combined polyether and isocyanate black materials are mixed with one another to obtain the rigid polyurethane foam material. The rigid polyurethane foam material and the method have the advantages that a raw material, namely polyurethane insole waste, is easily available, accordingly, the rigid polyurethane foam material and the method are favorable for solving environmental protection problems due to the industrial polyurethane insole waste, production processes are relatively simple, and the rigid polyurethane foam material and the method have high economical benefits; the rigid polyurethane foam material prepared from the polyurethane insoles has a low heat conductivity coefficient, is suitable for preparing heat-insulation materials and has extremely high popularization value.

Description

technical field [0001] The invention relates to the field of recycling of polymer materials, in particular, the invention relates to a hard polyurethane foam material prepared based on degradation products of polyurethane insoles and a preparation method thereof. Background technique [0002] The forms of polyurethane resin products include soft, semi-rigid and rigid foam plastics, elastomers, paint coatings, adhesives, sealants, synthetic leather coating resins, elastic fibers, etc., and are widely used in automobile manufacturing, refrigerator manufacturing, transportation, etc. Transportation, civil engineering, footwear, synthetic leather, fabrics, electromechanical, petrochemical, mining machinery, aviation, medical, agriculture and many other fields, in order to protect resources and the environment, now vigorously advocate the recycling of various rubber and plastic products, Realizing the recycling of polyurethane products will make great contributions to saving reso...

AI Technical Summary

Problems solved by technology

However, whether it is commercially available polyether polyols or polyether polyols obtained after purification, the cost is relatively high