废旧聚苯乙烯泡沫塑料改性制备广谱粘胶剂 涂料的研究-无机化学专业论文.docxVIP

VI VI 汽油。通过多次试验得出了制取涂料的配方:混合溶剂60~70%，松香20~25%，复合乳化 剂2~4%，增塑剂0.5~1.5%，钛白粉6~8%，氧化锌3~4%，活性碳酸钙10~15%，并对所 制得的涂料进行了相关的性能检测，各项指标都达到了国家的SO1-3标准，成本核算也 低于市售的产品。 关键词:废旧聚苯乙烯泡沫塑料 接枝改性 粘胶剂 涂料 Abstract Todays world, Expanded Polystyrene plastics (abbreviated as EPS) are used widely day by day. They bring great convenience to people, but at the same time because of their refractory in the nature they have become everyones talking issues. They do create serious environmental problems. So the people at home and abroad are concerned about their recycling issues. People have reseached these problems thoroughly and extensively. The adhesives and coatings which made by waste formed polystyrene have developed with low energy consumption, simple process, small investment, etc. In this way, we can turn waste into treasure. This will not only bring economic benefits but also bring social benefits. The experiment is divided into three parts. The first part is PS grafting trials. The second part is the preparation of the water-emulsion adhesive. The third part is the preparation of solvent-based wall coatings. The polystyrene is one of non-polar polymer resin materials. Its polar matrix adhesion is poor, So we can graft polar monomer in its main chain to play a modified role. In the experiment we explored that the maleic anhydride (MAH) grafted polystyrene process conditions in toluene-ethyl acetate-chloroform- acetone medium, and optimized by orthogonal test the optimal reaction conditions: BPO1%, MAH3%, the reaction time 3h, temperature 100℃, the adding way of BPO 2:1.Unter the best conditions, the grafting yield is 1.96%,and the grafting efficiency is up to 98.4%; With the poor orthogonal test we analysed influence factors of various reaction conditions.The results showed that size of the order : the amount of initiator-BPO is the first factor,the second is the monomer,the third is the reaction time,last is the temperature;The grafting products were characterized by infrared spectroscopy.