涂料工业 ›› 2019, Vol. 49 ›› Issue (5): 1-7. doi: 10.12020/j.issn.0253-4312.2019.5.1

• 探索开发 •    下一篇

纤维素纳米晶改性光固化水性聚氨酯丙烯酸酯及其性能研究

雷德华,苏嘉辉,李华林,叶祖山,刘晓暄,崔艳艳   

  1. 广东省光固化先进材料工程技术研究中心,广东工业大学材料与能源学院,广州 510006

  • 收稿日期:2018-12-07 修回日期:2019-03-07 出版日期:2019-05-01 发布日期:2019-05-01
  • 通讯作者: 崔艳艳 E-mail:lunwenpfp@126.com
  • 基金资助:
    国家自然科学基金;中国博士后科学基金;广东省重大科技专项;广东省重大科技专项;广东省科技计划项目

Study on Properties of Cellulose Nanocrystals Modified UV-Curable Waterborne Polyurethane Acrylate

Lei Dehua,Su Jiahui,Li Hualin,Ye Zushan,Liu Xiaoxuan,Cui Yanyan   

  1. Guangdong Province Engineering Research Center of UV-curing Advanced Materials,School of Material and Energy Engineering,Guangdong University of Technology,Guangzhou 510006,China
  • Received:2018-12-07 Revised:2019-03-07 Online:2019-05-01 Published:2019-05-01

摘要: 以纤维素纳米晶( CNC)作为添加物,对紫外光固化水性聚氨酯丙烯酸酯( UV-WPUA)进行共混改性。通过实时红外、转矩流变仪、紫外 -可见光分光光度计、扫描电子显微镜( SEM)、电子万能试验机等表征手段探究了 CNC的添加量对复合树脂及其光固化涂层的性能影响。结果表明:当 CNC的添加量为 2%时, CNC颗粒在复合树脂中分散性良好,复合涂层的可见光透过率大于 85%,铅笔硬度 3H,附着力 0级,拉伸强度 9. 8 MPa,复合涂层的综合性能最好。

关键词: 纤维素纳米晶, 光固化水性聚氨酯丙烯酸酯, 增强

Abstract: The title cellulose nanocrystals(CNC)was used as additive to modify the UV-curable waterborne polyurethane acrylate(UV-WPUA)resin by blending. The properties of theblended resin and the cured coatings were characterized by real-time fourier transform infraredspectroscopy(real-time FT-IR), torque rheometer,UV-Vis spectrophotometer,scanning electron microscope(SEM)and electronic universal testing machine. The results showed thatwhen the incorporation level of CNC was 2 wt%,it was dispersed well in the blended resin andthe comprehensive properties of the coatings was the optimal:transmittance in visible range was higherthan 85%,pencil hardness 3H,adhesion 0 grade,tensile strength 9.8 MPa.

Key words: cellulose nanocrystals, UV-curable waterborne polyurethane acrylate, enhancement

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