生物降解高分子材料的研究现状 毕业论文

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1、毕业论文论文题目：生物降解高分子材料的研究现状学院名称：内蒙古化工职业学院专业：高分子材料应用技术班级：高分子09-1班指导教师：学生姓名：完成时间：2012年4月20日17目录摘要··························································IIIAbstract······················································III第一章绪论···········································

2、·········11.1概述·······················································11.2生物降解高分子材料的定义···································11.3生物降解的过程·············································21.4生物降解高分子的种类·······································21.5处理高分子材料的传统方法···················

3、················3第二章降解塑料的分类··········································42.1按化学结构发生降解变化因素分类·····························42.2按原料组成和制造工艺分类···································4第三章材料生物降解环境及其相关体系····························63.1材料生物降解的环境必须具备的条件···························73.2

4、材料生物降解环境及体系·····································7第四章生物降解高分子材料的合成·······························104.1缩合聚合反应··············································114.2开环聚合··················································12第五章总结···············································

5、····12参考文献······················································14致谢··························································1517生物降解高分子材料的研究现状摘要:本文介绍近年来生物降解材料降解方法的研究现状,主要从不同的降解环境进行的材料生物降解性能研究进行了比较,评述与展望,以及可降解塑料的种类、降解机理和影响因素.关键词:生物降解、可生物降解材料、降解环境、可降解塑料种类、降解机理、影响因素

6、ThebiodegradablepolymermaterialsresearchstatusAbstract:thispaperintroducesthebiodegradablematerialsthestudyofthemethodofdegradationoftheenvironmentofbiodegradablematerialpropertiesarecomparedandreview,andprospectandthekindsofbiodegradableplasticeatdegradationmechan

7、ism、influencefactors.KeyWords:BiodegradablematerialEnvironmentaldegradationBiodegradableplastictypesDegradationmechanismInfluencefactors17第一章绪论1.1概述高分子材料在El常生活中的使用量越来越大，然而高分子材料给人们生活带来便利、改善生活品质的同时．其使用后的大量塑料废弃物也与El俱增，给人类赖以生存的环境造成了不可忽视的负面影响。此外，绝大多数的合成高分子材料来源于石油化工。目前全球

8、石油储量约800多亿t。而全世界每年的石油消费量超过30亿t。照目前的消耗速度。数十年后，高分子材料工业将面临无米下锅的困境。近年来。生物降解塑料作为环境保护材料(如农用地膜、建筑)和包装容器材料(如包装膜、垃圾袋、食品包装容器)的研究发展十分迅速。并开始得到广泛应用，尤其在一次性使用的塑