| 英文摘要 |
Taiwan ’s economy has grown rapidly in recent years, and the country ’s population and living standards have greatly increased. Cars and locomotives have become essential means of transportation for Chinese people. The number of domestic waste motor vehicles is increasing year after year. After recycling, there are still some Non-metallic materials, such as waste foam, are large in size and low in price. In the past, they were directly crushed and sent to incinerators and landfills for treatment. However, the existing incinerators and landfills have limited processing capacity. Recycling and enhancing its environmental value also have significant benefits for the recycling of waste.
This research has carried out the collection of automotive waste foam. The density, heat value analysis, and three-component analysis have been carried out. The source of the research vehicle is Taiwan-made Japanese cars, including TOYOTA, NISSAN, MITSUBISHI, and imported BMW and BENZ. The calorific value of foam is generally above 7000 kcal / kg, which has the characteristics of high calorific value and can be made into derivative fuel RDF in the future.
With the different types of foam in the alcoholysis reaction, a recovery rate of more than 70% can be achieved, and the increase in the reaction time and the alcoholysis solution can improve the hydroxyl group properties. React with isocyanate to make PU resin.
In addition, the waste alcohol foaming solution of different alcoholysis was reacted with isocyanate to synthesize PU coating for wood. The properties of different alcoholysis films were discussed. From the result, the impact resistance of the coating film was relatively high. The ability of the film to quickly deform without cracking or peeling on the wood is better, and it also has better performance in terms of abrasion resistance. The loss rate of the coating film after receiving external force is low.
In addition, the scale design of the alcoholysis plant was carried out. If crude glycerin was used as the alcoholysis reagent, the annual income would be 520 million yuan. It shows that the recovered alcoholylated polyol is promising for future investment in the coatings market or PU manufacturing related markets.
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