（毕业设计论文）《交联型高透光率环保阻燃PMMA的制备》.docVIP

摘 要 聚甲基丙烯酸甲酯（PMMA）是透明的高分子材料中很重要的一种，俗称有机玻璃。因具有优良的透明性，美丽的质感和超群的耐候性，以及一定的物理机械性能，因而被广泛的应用于农业、航空、建筑、光学仪器等领域。虽然有机玻璃具有上述许多优点，但由于其热变形温度低，仅为80℃左右，而且氧指数低，发烟量很大，严重影响其使用的安全性，所以对其阻燃性的研究就显得尤为重要。 磷腈材料因其结构中富含磷、氮，因而阻燃性能好，且结构中的氯可被取代并分解成小分子，所以磷腈材料是环保型阻燃剂。聚磷腈用于PMMA的阻燃既有阻燃效果又能较好的保持PMMA的其它性能，因而开发磷腈阻燃剂材料应用于PMMA体系前景广阔。 本课题主要进行了以下几个方面的研究工作：首先，制备加有不同组分交联剂的PMMA样条，测试其在拉伸强度、冲击强度、表面硬度等方面的变化。再次，在加有交联剂的同时，再加入不同组分的阻燃剂，通过燃烧试验考察磷腈阻燃剂对PMMA的阻燃性能的影响。以及加入阻燃剂后对其它性能比如透明性的影响。 关键词： Abstract Polymethyl methacrylate (PMMA) is one of important transparent polymer materials, commonly known as plexiglass. Because of its excellent transparency, a beautiful textureand superior durability, as well as some physical and mechanical properties, they have been widely used in agriculture, aviation, architecture, optical instruments and other fields. Although the plexiglass with the many advantages, but because of its heat distortiontemperature is low, only about 80 ℃, and the oxygen index is low, a large amount of smoke and seriously affect the safety of its use, so the research on its flame-retardant is very important. Phosphazene material because of its structure, rich in phosphorus, nitrogen, and thus fire-retardant properties, and structure of the chlorine can be replaced and broken down into small molecules, so the phosphazene flame retardant material is environmentally friendly. Polyphosphazenes for both the flame retardant effect of PMMA can better maintain the other properties of PMMA, which developed phosphazene flame retardant material used in PMMA system, a bright future. The main topic was the following aspects of work: First of all, PMMA samples with different components of cross-linking agent have been prepared, the properties of have been tested. Again, in the add of crosslinking agent, at the same time add in the different components of the flame retardant, pilot study by burning phosp