Preparation method of antibacterial and mildew-proof TDI (toluene diisocyanate) memory polyurethane foam

Abstract

The invention discloses a preparation method of antibacterial and mildew-proof TDI (toluene diisocyanate) memory polyurethane foam. The preparation method comprises the following steps of: 1) impregnating white mica powders in hydrogen peroxide to obtain expansion white mica powders after treatment; 2) adding the expansion white mica powders from the step 1 to trisodium phosphate solution to obtain a solid product after treatment; 3) adding the solid product from the step 2 to AgNO3 solution to obtain a solid-supported silver mica antibacterial agent after stirring and post-treatment; 4) adding the product from the previous step to the mixed solution of a diluting agent and a coupling agent for mixing, and then stirring to obtain a plastic antibacterial agent; and 5) adding the plastic antibacterial agent and a mildew-proof agent to a reaction kettle of butter PPG (Polypropylene Glycol) to realize dissolution by stirring, then adding a variety of accessories and TDI, stirring at high speed and then pouring the mixture into a reaction tank, and finally, naturally aging to obtain the product. According to the invention, the solid-supported silver mica antibacterial agent and the 8-hydroxyquinolinate mildew-proof agent are employed to result in antibacterial property and mildew-proof effect in the prepared product.

Description

technical field [0001] The invention relates to a preparation method of polyurethane foam, in particular to a preparation method of antibacterial and mildew-proof TDI memory polyurethane foam. Background technique [0002] Since the 20th century, polyurethane foam has been greatly developed. In the 1940s, the German Bayer laboratory used diisocyanate and polyols as raw materials to prepare polyurethane samples such as rigid foam plastics. The United States has carried out research on rigid polyurethane foam since 1946, and the products are used in aircraft sandwich panel parts. In 1952, Bayer Company reported the results of the pilot test of polyester-type flexible polyurethane foam; from 1952 to 1954, it developed the technology of continuous production of polyester-type flexible polyurethane foam and developed corresponding production equipment; In 1961, polyisocyanate PAPI with low vapor pressure was used to prepare rigid polyurethane foam, which improved the performanc...

AI Technical Summary

Problems solved by technology

[0004] At present, some memory slow rebound polyurethane foam materials have appeared on the market, but there is no report on the application of immobilized silver mica antibacterial powder in the production of TDI memory polyurethane foam materials to make TDI memory polyurethane foam materials have antibacterial properties, and there is no application.8 -A report on copper hydroxyquinoline as an antifungal agent that makes TDI memory polyurethane foam have antifungal properties and other aspects