滑石粉填充聚丙烯共混物的性能研究  

Study on the Properties of Talc Filled Polypropylene Blends

作　　者：蒲桃红 李柱凯 马静月 陈国夫 PU Tao-hong;LI Zhu-kai;MA Jing-yue;CHEN Guo-fu(Guang'an Vocational&Technical College,Guang'an 638000,China)

机构地区：[1]广安职业技术学院,四川广安638000

出　　处：《塑料科技》2024年第7期58-61,共4页Plastics Science and Technology

基　　金：广安市2023年“揭榜挂帅制”科技项目(2023JBGS01)。

摘　　要：聚丙烯(PP)塑料是1种性能优异、应用广泛的材料。在PP塑料的二次回收利用过程中,其力学强度、热稳定性和抗老化性能仍有待进一步提高。因此,研究采用废弃的PP塑料,并通过简单的熔融塑化和再冷却的方法制备了滑石粉填充的PP共混物。添加滑石粉后,滑石粉中的—OH基团和PP碳链上的—CH_(3)基团之间形成了氢键,使滑石粉填充的PP共混物的力学性能较原始PP塑料显著提升。当滑石粉的含量为10%时,其断裂能相比原始的PP塑料提高了近142%。因此,在二次回收利用PP塑料的过程中添加适量的滑石粉有助于进一步提升PP共混物的性能。Polypropylene(PP) is a widely used material with excellent properties.The mechanical strength,thermal stability,wettability,and anti-aging properties of PP can be further improved,especially for secondary recycled PP.Therefore,the study aimed to improve the properties of PP by waste PP and preparing talc-filled PP blends via a simple melt plasticization and re-cooling process.Through the addition of talc,hydrogen bonds were formed between the —OH groups in talc and the —CH_(3) groups on the PP carbon chain,resulting in a significant improvement in mechanical properties compared to virgin PP.The addition of 10% talc increased the fracture energy of the blends by nearly 142%.Therefore,the addition of talc in the secondary recycling of PP can effectively improve the performance of PP blends and enhance their sustainability in practical applications.

关 键 词：聚丙烯塑料 滑石粉 废物资源化 抗老化 可持续应用 

分 类 号：TB332[一般工业技术—材料科学与工程] TQ325.14[化学工程—合成树脂塑料工业]