(毕业论文 字数:14096页数:27)摘 要 AS俗称SAN,为针对GPPS的缺失而改良的热可塑性树脂,AS树脂是由苯乙烯(SM)和丙烯腈(AN)聚合而成,AS本身为略带浅黄色的透明树脂,由于丙烯腈的诸多特性,AS具有硬度佳、耐药品性好、刚性强等优点,;因此AS被广泛应用于电气器具、化妆品容器、汽车部件或其它杂货等。由于对温度及压力要求较高,所以其自动控制也较复杂。镇江奇美化工有限公司利用连续式溶液聚合方式来生产AS,其主要控制有前馈控制、反馈控制、串级控制和联锁保护等。 关键词: AS生产工艺,自动控制 AS Production Technology and Control System Abstract AS commonly known as SAN, GPPS.In the meantime to address the deficiencies and improve the thermoplastic resins, AS resin is styrene (SM) and acrylonitrile (AN) polymerization. AS itself as a bit of light-yellow transparent resin, acrylonitrile as many features, AS has excellent hardness, Resistance good character, rigid advantages; AS it has been widely used in electrical equipment, cosmetics containers. automotive components, or other miscellaneous items. Because of temperature and pressure are higher, and so its control is more complicated. Zhenjiang Chi Mei Chemical Co., Ltd. using continuous solution polymerization method to the production of AS, the main controlling feedforward control, Feedback control, and cascade control interlock protection. 目录 第一章 原料及物性 第一章 原料及物性 |
AS生产工艺及自动控制系统
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