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Study On Recycling Resource To Solve The Waste Plastics

Posted on:2004-02-25Degree:MasterType:Thesis
Country:ChinaCandidate:H LiuFull Text:PDF
GTID:2121360125464610Subject:Bio-engineering
Abstract/Summary:PDF Full Text Request
People are now interested in recycling resource for solving the waste plastics. But the condition for catalyst degradation is cavil, which need to improve the quantity of the machine. We can not control this reaction easily.The object of present work is the preparation of researching a catalyst system, which can degrade the waste plastics under normal condition and the degradation things can become the resource of the combustion or the material for the industry. The advantage of this ways is so obvious. At first, we can solve the problem of the waste plastics. Secondly, the economy value of the maturity plastics industry has been saved. Finally, the degradation thing can become the material for recycling, which make us not waste the resource and get the most value of everything.The .first chapter elaborates the eight exist ways for solving the waste plastics. After comparing the advantage and defect of these ways, we expound the ideas of catalyst degradation under normal condition.The second chapter studies the condition of catalyst degradation for finding the best condition. This chapter discusses the relationship under different experimental conditions (solvent, the dose of the solvent, time, temperature and the dose of the catalyst). The degradation things are divided into A, B1 Cl and D via the theory of gradually classified deposition. In this thesis the rest ratio of A and Bl is the token of the degradation efficiency. That is the lower the rest ratio of A and B1, the higher the degradation efficiency. Through comparing several solvents in the same condition, we know that the degradation efficiency is the highest when the solvent is toluene. With prolonging the time and enhancing the temperature., the dose of the catalyst and the solvent, the rest ratio of A and Bl can be lower than 1%. That is the degradation efficiency is over 99%.The third chapter studies the analysis of the degradation tilings. We use Ultraviolet Spectra, IR Spectra,Gas Chromatographyx Mass Spectrometry and GC-MS to confirm the cy and quantity of the degradation things.
Keywords/Search Tags:waste plastics, catalyst degrade, recycle, polystyrene
PDF Full Text Request
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