Recycling method of composite material containing polyurethane foam

• Main Authors: WANG GUOSHU, ZHU WEIZHEN, GUO HUANXIANG, LI GUOWEI
• Format: Patent
• Language: Chinese; English
• Published: 01.02.2017
• Subjects: ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; ADHESIVES; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; CHEMISTRY; CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATERTREATMENT OR WASTE MANAGEMENT; COMPOSITIONS BASED THEREON; DYES; GENERAL PROCESSES OF COMPOUNDING; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; POLISHES; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF MATERIALS AS ADHESIVES; WORKING-UP

The invention provides a recycling method of a composite material containing polyurethane foam. The polyurethane foam, glass fibers, fabrics and other materials in the composite material are separated through alcoholysis reaction, a liquid recovered material obtained by utilizing alcoholysis and isocyanate are prepared into a polyurethane adhesive, and a solid recovered material is bonded to prepare a novel composite polyurethane material, so that the composite polyurethane material complicated in composition is recycled, and the recycling problem of the composite material containing the polyurethane foam is solved. 本发明提供种含有卷帙泡沫的复合材料的回收利用方法，通过醇解反应分离聚氨酯复合材料中的聚氨酯泡沫和玻纤、面料等材料，并利用醇解得到的液体回收物与异氰酸酯制成聚氨酯胶，粘接固体回收物，制成新的聚氨酯复合材料，使成分复杂的聚氨酯复合材料得到回收利用，解决了含有聚氨酯泡沫的复合材料的回收利用难题。