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Application for building and adsorption materials derived from waste PU foam and glass of automobile shredder residue

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The recycling quantity of waste motor vehicles in China has a trend of increasing year by year. After recycling of waste motor vehicles, some non-metallic substances, such as waste foam and waste glass, are used in the past because of their large volume and low price. It is sent to incinerators and landfills for treatment. However, due to the limited processing capacity of existing incinerators and landfills, if it can be recycled and reused, and its environmental value will be enhanced, it will also have significant benefits for waste recycling. In this study, vehicle waste glass, waste foam and waste paper fiber and wood pellets have been tested for cement board production, including waste paper fiber and waste glass to produce cement composite board. The addition rate of waste glass is different from that of cement. The board property will increase the compressive strength due to the addition of waste materials. Although the flexural strength cannot be increased, it may be used for building materials decorative panels because of its poor adhesion to cement. The use of waste glass for vehicles to produce flame-resistant materials, the analysis results show that with the increase of waste glass can reduce the heat generated in the combustion process, but also can protect the burning of the plywood and delayed plywood. The process of forming a vitreous body by melting and dissolving the glass at a high temperature, and interacting with the inorganic material to form a eutectic substance, thereby achieving the replacement of the organic film-forming substance and withstanding the heat resistance, oxidation resistance and prevention at a high temperature. Physical and mechanical effects such as corrosion. In addition, PU foam is used to test the production of adsorbent materials. The carbonized PU foam is analyzed by a specific surface area analyzer. The specific surface area after gradient heating is large, and the ability to adsorb impurities in the future will be better than direct heating. At the end of the period, attempts will be made to test at a lower temperature to increase the specific surface area of the adsorbent material to enhance the adsorption capacity. After mixing and granulating waste waste foam and waste biomass, the calorific value can reach 5000 kcal/kg or more, and solid solid fuel can be produced for energy use. Therefore, the project has carried out combustion boilers and heat exchangers. After the granules are burned, the wood chips can be dried, and the pollutants discharged are also lower than the national standards, and the energy recycling can be achieved.
Keyword
Waste PU, Waste glass, Recycling
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