中国塑料 ›› 2024, Vol. 38 ›› Issue (3): 26-30.DOI: 10.19491/j.issn.1001-9278.2024.03.005

• 材料与性能 • 上一篇    下一篇

提钛尾渣对聚丙烯材料力学性能的影响

陈炽盛1(), 杨帅2, 张建军1, 郭齐泰1, 蔡瑗1, 马素德1()   

  1. 1.西华大学材料科学与工程学院,成都 610037
    2.东方电气集团东方电机有限公司,四川 德阳 618000
  • 收稿日期:2023-08-10 出版日期:2024-03-26 发布日期:2024-03-28
  • 通讯作者: 马素德(1976—),男,工学博士,教授,主要从事新型环保及功能涂料的研究, masude2007@163.com
    E-mail:389359713@qq.com;masude2007@163.com
  • 作者简介:陈炽盛(1999—),男,硕士研究生,主要研究方向为高分子材料,389359713@qq.com

Effect of titanium tailings on mechanical properties of polypropylene materials

CHEN Chisheng1(), YANG Shuai2, ZHANG Jianjun1, GUO Qitai1, CAI Yuan1, MA Sude1()   

  1. 1.Xihua University Material Science and Engineering School,Chengdu 610037,China
    2.Dongfang Electric Machinery Co,Ltd,Deyang 646003,China
  • Received:2023-08-10 Online:2024-03-26 Published:2024-03-28
  • Contact: MA Sude E-mail:389359713@qq.com;masude2007@163.com

摘要:

以聚丙烯为基体,以提钛尾渣为无机填料,γ⁃甲基丙烯酰氧基丙基三甲氧基硅烷(KH⁃570)为改性剂,通过熔融共混法制备聚丙烯/提钛尾渣复合材料。利用万能试验机、扫描电子显微镜、差示扫描量热仪等测试复合材料的性能并探究其各种影响因素。结果表明,复合材料的拉伸强度与提钛尾渣添加量成反比;对提钛尾渣的水洗可以有效提高复合材料体系的拉伸强度;改性后尾渣在基体中分散性更好,以其制备的复合材料样品拉伸强度优于未改性样品,亲油性增强,亲水性变差;经筛选分级后提钛尾渣的粒径分布更加均匀,拉伸强度在添加量为10 %、30 %时性能均大于未筛选复合体系。

关键词: 提钛尾渣, 改性, 水洗, 粒径, 力学性能

Abstract:

In this paper, a series of polypropylene (PP)⁃based composites were prepared through melt blending using titanium removal tailings as an inorganic filler and KH⁃570 (γ⁃methylacryloxy propyl trimethoxysilane) as a coupling agent. The properties of the composites were characterized by using universal testing machine, scanning electron microscope, and differential scanning calorimeter (DSC), and the influencing factors were analyzed. The results indicated that the tensile strength of the composites was inversely proportional to the addition amount of titanium tailings. The tensile strength of the composites was effectively improved by washing titanium tailings. The modified slag has better dispersibility in the matrix, the composite samples prepared by using the modified slag exhibited higher tensile strength than the unmodified sample. Meanwhile, their lipophilicity was enhanced, but their hydrophilicity was deteriorated. After screening and grading, the titanium tailings exhibited a more uniform particle⁃size distribution, and the composites presented higher tensile strength than the unscreened system at titanium tailing loadings of 10 and 30 wt%.

Key words: titanium tailings removal, modification, washing, particle size, mechanical property

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