化工进展 ›› 2020, Vol. 39 ›› Issue (S1): 186-194.doi: 10.16085/j.issn.1000-6613.2019-1651

• 材料科学与技术 • 上一篇    下一篇

石墨烯基疏水单体的制备及其防水乳液的应用

曹思娟1(), 刘晓国1(), 宋松林2, 刘华溪2   

  1. 1.广州大学化学化工学院,广东 广州 511400
    2.清远市柯林达新材料有限公司,广东 清远 513000
  • 收稿日期:2019-10-17 出版日期:2020-05-20 发布日期:2020-06-29
  • 通讯作者: 刘晓国 E-mail:294315020@qq.com;lxg6005@163.net
  • 作者简介:曹思娟(1993—),女,硕士研究生,研究方向为高分子材料。E-mail:294315020@qq.com

Preparation of a hydrophobic monomer based on graphene oxide andits application in the waterproof emulsion

Sijuan CAO1(), Xiaoguo LIU1(), Songlin SONG2, Huaxi LIU2   

  1. 1.College of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 511400, Guangdong, China
    2.Qingyuan Kelinda New Material Co. , Ltd. , Qingyuan 513000, Guangdong, China
  • Received:2019-10-17 Online:2020-05-20 Published:2020-06-29
  • Contact: Xiaoguo LIU E-mail:294315020@qq.com;lxg6005@163.net

摘要:

采用新癸酸缩水甘油酯(E10P)、甲基丙烯酸羟乙酯(HEMA)、异佛尔酮二异氰酸酯(IPDI)对氧化石墨烯(GO)进行接枝疏水烷基链,得到可水分散性的含碳碳双键的石墨烯基疏水单体(IHGOE)。在壳中引入IHGOE和丙烯酸酯类单体通过自由基聚合得到石墨烯改性的丙烯酸酯有机无机杂化核壳乳液。并通过FTIR、XPS、TG、SEM、粒径等测试对乳液进行了结构分析,并测试了乳液配方中IHGOE含量对涂膜的接触角、附着力、硬度、耐水煮、耐水性、耐酸碱性等性能的影响。结果表明,当乳液配方中IHGOE质量分数为20%时,涂膜的接触角达到最大,即为110.8°,比纯丙烯酸酯乳液涂膜接触角74.3°高出49.1%,显著提高了涂膜的防水性能。同时,涂膜附着力为0级,硬度为2H,耐水煮≥1h,耐水浸泡大于48h,耐丁酮擦拭(1kg)大于100次,耐5%NaOH水溶液浸泡大于24h,耐5%HCl水溶液浸泡大于24h。

关键词: 氧化石墨烯, 乳液, 防水性, 聚合物, 合成

Abstract:

In this paper, a water dispersible hydrophobic monomer with C?????C bond based on graphene (IHGOE) was prepared by grafting hydrophobic alkyl chain derived from glycidyl neodecanoate (E10P) through chemical action with hydroxyethyl methacrylate (HEMA), and isophorone diisocyanate (IPDI). Hybrid emulsion with core/shell structure was further prepared by free radical polymerization with acrylate monomers after introducing the IHGOE into the shell layer. And its structure was chartered by FTIR, XPS, TG, SEM, and DSL. The effects of the IHGOE on the performance of practical application was also investigated including the water contact angle (CA), adhesion, hardness, water resistance, water resistance. The results demonstrated that the film of the emulsion exhibited the best performance when the mass fraction of IHGOE in the emulsion formulation was 20%, i.e. the CA of 110.8° overmatched the pure acrylate emulsion film with CA of 74.3°, which greatly enhanced its water proof. The adhesion of the film is 0 grade, the hardness is 2H, the resistant time of boiling water reached one hour, water-resistant immersion time was above 48h, butanone-resistant wiping (1kg) was above 100 times, and both the immersion time in 5% NaOH and 5% HCl solution were above 24h.

Key words: graphene oxide, emulsions, waterproofness, polymers, synthesis

中图分类号: 

  • TQ630.4