不同无机填料对聚丙烯(PP)力学性能的影响.docxVIP

密级公开 湖南人文科技学院本科生毕业论文题 目：不同无机填料对聚丙烯(PP)力学性能的影响 学院：材料与环境工程学院专 业：高分子材料与工程学生姓名：刘某某学 号导教师：张 某职 称：讲 师湖南人文科技学院教务处制2016年06月湖南人文科技学院本科毕业论文诚信声明本人郑重声明：所呈交的本科毕业论文，是本人在指导老师的指导下，独立进行研究工作所取得的成果，成果不存在知识产权争议，除文中已经注明引用的内容外，本论文不含任何其他个人或集体已经发表或撰写过的作品成果。对本文的研究做出重要贡献的个人和集体均已在文中以明确方式标明。本人完全意识到本声明的法律结果由本人承担。作者签名：二○年月日不同无机填料对聚丙烯(PP)力学性能的影响刘某某指导教师：张某湖南人文科技学院材料与环境工程摘要：无机填料改性聚丙烯是一种兼具良好韧性和刚性的方法，本实验研究无机填料碳酸钙(CaCO3)、硫酸钙(CaSO4)和高岭土对聚丙烯(PP)力学性能的影响。采取拉伸试验、弯曲试验、冲击试验分别对不同比例的PP/无机填料进行测验。结果表明:当CaSO4含量比例为8%时，材料的冲击性能达到最高值为5.91kJ/m2。当无机填料填充量为6%时，填料对PP的增强效果最好，PP/CaCO3、PP/高岭土和PP/CaSO4复合材料的拉伸性能达到最佳。当填充量为4%时，PP复合材料的弯曲强度达到最大，但随着份数的增加，对弯曲强度影响不明显。关键词：无机填料;聚丙烯;填充增韧；力学性能Inorganic fillers on polypropylene influence of mechanical propertiesLiu moumouSupervisor: Zhang mouSchool of Material and Environmental Engineering,Hunan University of Humannities,Science and TechnologyAbstract:Using inorganic filler to modify Polypropylene is a kind of method with good toughness and rigidity. This experiment study the effect of inorganic filler calcium carbonate (CaCO3), calcium sulphate (CaSO4) and kaolin on the mechanical behavior of polypropylene (PP). I adopt tensile test, bend test and impact test to examine the effect of different proportions of PP/inorganic fillers on the mechanical behavior of polypropylene (PP). It turned out that When CaSO4 content is 8%, the impact of the material performance peak 5.91 kJ/m2,When the inorganic filler filled quantity of 6%,the effect on packing of PP enhancement is best .And under this condition the tensile properties of the composites can achieve the best when the composite materials consist of PP/CaCO3, PP/kaolin or CaSO4 / PP. When the filling quantity of 4%, the bending strength of PP composite materials reached the peak value.But along with the increasing quantity of inorganic filler, the influence on the bending strength is on the decline.Key words: Inorganic filler; PP; fill toughening; mechanical properties前言聚丙烯(PP)是目前用量最大的通用塑料之一，被广泛的应用于化工，机械，汽车，日用品等各个领