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纳米氧化铝修饰及其增强水性丙烯酸涂料物理性能的研究

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  • (1. 合肥学院能源材料与化工学院 安徽省绿色涂料高性能助剂工程研究中心, 安徽 合肥 230601; 2. 合肥爱高助剂科技有限公司, 安徽 合肥 230601)

李明华(1981-),副教授,博士,研究方向为绿色涂料高性能助剂,E-mail:liminghua@hfuu.edu.cn

收稿日期: 2023-05-23

  修回日期: 2023-06-12

  录用日期: 2023-07-20

  网络出版日期: 2023-12-25

基金资助

安徽省科技厅自然科学基金项目(1808085ME144)资助

Study on Modification of Nano Alumina and Its Enhancement of Physical Properties of Water-Based Acrylic Coatings

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  • (1. Anhui Provincial Engineering Research Center for Green Coatings High-Performance Additives,

    School of Energy Materials and Chemical Engineering, Hefei University, Hefei 230601, China;

    2. Hefei Aigo Additives Technology Co., Ltd., Hefei 230601, China)

Received date: 2023-05-23

  Revised date: 2023-06-12

  Accepted date: 2023-07-20

  Online published: 2023-12-25

摘要

为了增强水性丙烯酸树脂涂料的物理性能,在超声波作用下,通过调控抗沉型分散剂的质量分数,成功制备出一种绿色改性的水性纳米氧化铝分散体,对水性纳米氧化铝分散体进行了表征,并对分散体复合市售水性丙烯酸树脂涂料进行了物理性能测试。结果表明:在分散剂质量分数为0.50%,超声波分散时间为0.5 h的条件下,制备的水性纳米氧化铝分散体的储存稳定时间大于90 d;在市售水性丙烯酸树脂涂料中添加质量分数为4%的水性纳米氧化铝分散体后,涂层的耐磨转数从小于5 r增大到15 r以上,抗刮载荷从1.10 kg增大到2.00 kg。

本文引用格式

李明华, 高杰, 蒋东明, 俞书军, 杜志强 . 纳米氧化铝修饰及其增强水性丙烯酸涂料物理性能的研究[J]. 材料保护, 2023 , 56(11) : 88 -93 . DOI: 10.16577/j.issn.1001-1560.2023.0267

Abstract

For enhancing the physical properties of water-based acrylic resin coating, a green modified water-based nano-alumina dispersion was successfully prepared by regulating mass fraction of anti-sedimentation dispersant under the condition of ultrasonication. Subsequently, the water-based nano alumina dispersion was characterized, and the physical properties of commercial water-based acrylic resin composite coating mixed with the dispersion were tested. Results showed that under the conditions of a dispersant mass fraction of 0.50% and an ultrasonic dispersion time of 0.5 h, the storage stability time of the prepared water-based nano-alumina dispersion was greater than 90 d. Besides, after adding 4%(mass fraction) water-based nano-alumina dispersion to commercially available water-based acrylic resin coatings, the wear-resistant rotation number of the as-obtained coating increased from less than 5 r to more than 15 r, and the scratch resistance load increased from 1.10 kg to 2.00 kg.
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