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乳液模板法制备自修复缓蚀双功能微胶囊

张立畅 吴凯云 董佳豪 罗静 刘仁

张立畅, 吴凯云, 董佳豪, 罗静, 刘仁. 乳液模板法制备自修复缓蚀双功能微胶囊[J]. 功能高分子学报. doi: 10.14133/j.cnki.1008-9357.20210502001
引用本文: 张立畅, 吴凯云, 董佳豪, 罗静, 刘仁. 乳液模板法制备自修复缓蚀双功能微胶囊[J]. 功能高分子学报. doi: 10.14133/j.cnki.1008-9357.20210502001
ZHANG Lichang, WU Kaiyun, DONG Jiahao, LUO Jing, LIU Ren. Prepared of Self-Healing and Anti-Corrosion Dual-Function Microcapsules via Emulsion Template Method[J]. Journal of Functional Polymers. doi: 10.14133/j.cnki.1008-9357.20210502001
Citation: ZHANG Lichang, WU Kaiyun, DONG Jiahao, LUO Jing, LIU Ren. Prepared of Self-Healing and Anti-Corrosion Dual-Function Microcapsules via Emulsion Template Method[J]. Journal of Functional Polymers. doi: 10.14133/j.cnki.1008-9357.20210502001

乳液模板法制备自修复缓蚀双功能微胶囊

doi: 10.14133/j.cnki.1008-9357.20210502001
基金项目: 国家自然科学基金(51873080);海洋涂料国家重点实验室开放课题基金
详细信息
    作者简介:

    张立畅(1999—),女,主要研究方向为功能微球及防腐涂层。E-mail:17851306900@163.com

    通讯作者:

    罗 静,E-mail:jingluo19801007@126.com

  • 中图分类号: O63

Prepared of Self-Healing and Anti-Corrosion Dual-Function Microcapsules via Emulsion Template Method

  • 摘要: 首先以木质素磺酸钙作为乳化剂稳定含有桐油(Tung oil)、甲基丙烯酸缩水甘油酯(GMA)和1,6-己二醇二丙烯酸酯(HDDA)的油相,通过紫外辐照引发油相中GMA和HDDA的聚合形成交联聚丙烯酸酯微胶囊壳层;然后向水相中加入苯胺单体,通过木质素磺酸钙和苯胺之间的静电作用将苯胺吸附于微胶囊外表面,以过硫酸铵引发氧化聚合反应形成聚苯胺(PANI)壳层,成功制备得到负载桐油的聚苯胺(Tung oil-PGMA@PANI)微胶囊。该微胶囊为复合壳层结构,其中交联聚丙烯酸酯壳层可以稳定乳液滴形貌并提高微胶囊韧性,PANI壳层赋予微胶囊防腐性能,并且微胶囊内部负载的桐油可以赋予微胶囊自修复性能。添加Tung oil-PGMA@PANI微胶囊的水性环氧涂层表现出优异的自修复性能和防腐蚀性能。

     

  • 图  1  Tung oli-PGMA@PANI微胶囊的制备示意图

    Figure  1.  Schematic illustration of preparation of the Tung oil-PGMA@PANI microcapsules

    图  2  不同质量分数的木质素磺酸钙稳定的乳液静置24 h后的显微镜照片及数码照片(a~e);乳液液滴的平均粒径(f)

    Figure  2.  Microscope images and digital photos of emulsion stabilized by different mass fraction of lignosulfonate after 24 h stationary(a−e); Average particle size of emulsion droplets(f)

    图  3  乳液静置24 h后的显微镜照片及数码照片(a~d);各组乳液液滴的平均粒径(e)

    Figure  3.  Microscope images and digital photos of emulsions after 24 h stationary(a— d); Average particle size of each emulsion droplets(e)

    图  4  Tung oil-PGMA@PANI微胶囊的光学显微镜照片(a)、SEM照片(b)、局部放大照片(c)和壳层横截面的SEM照片(d)

    Figure  4.  Optical microscope(a)、SEM image (b)、 magnified image(c) and SEM image of cross section of shell (d) of Tung oil-PGMA@PANI microcapsules

    图  5  桐油、PGMA@PANI微胶囊和Tung oli-PGMA@PANI微胶囊的FT-IR光谱(a)和TGA曲线(b)

    Figure  5.  FT-IR spectra(a) and TGA curves(b) of Tung oil, PGMA@PANI and Tung oil-PGMA@PANI microcapsules

    图  6  微胶囊在不同溶剂中桐油随时间的质量损失曲线

    Figure  6.  Residual of Tung oil mass from microcapsules in different solutions

    图  7  涂层截面的扫描电镜图像

    w(Tung oil-PGMA@PANI)/%:a−0;b−5;c−7.5;d−10

    Figure  7.  SEM images of coating fracture surfaces

    图  8  Tung oil-PGMA@PANI微胶囊涂层自修复前(a)和自修复3 d后(b)的超景深显微镜图像及愈合划痕的SEM图像(c)

    Figure  8.  Super depth microscope image of coatings with Tung oil-PGMA @PANI microcapsules before(a) and after self-healing for 3 d(b);(c)SEM image of healed scratch

    图  9  不同Tung oil-PGMA@PANI 微胶囊添加量的水性环氧涂层500 h的盐雾实验照片

    Figure  9.  Images of the salt spray-tested of water-born epoxy coatings with different mass fraction of Tung oil-PGMA@PANI microcapsules within 500 h

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出版历程
  • 收稿日期:  2021-05-02
  • 网络出版日期:  2021-07-13

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