化工学报 ›› 2019, Vol. 70 ›› Issue (12): 4889-4897.DOI: 10.11949/0438-1157.20190752

• 材料化学工程与纳米技术 • 上一篇    下一篇

造纸用纳米粒子复合香豆素荧光乳液的制备及性能

张光华1(),唐进霞1(),郭明媛2,刘丹1,倪美乐1,王帆1   

  1. 1. 陕西科技大学陕西省轻化工助剂重点实验室,陕西 西安 710021
    2. 渭南师范学院化学与材料学院,陕西 渭南 714099
  • 收稿日期:2019-07-02 修回日期:2019-09-29 出版日期:2019-12-05 发布日期:2019-12-05
  • 通讯作者: 唐进霞
  • 作者简介:张光华(1962—),男,博士,教授,zhanggh@sust.edu.cn
  • 基金资助:
    国家自然科学基金项目(31670596);陕西省教育厅重点实验室项目(13JS019)

Preparation and properties of nanoparticle composite coumarin fluorescent emulsion for papermaking

Guanghua ZHANG1(),Jinxia TANG1(),Mingyuan GUO2,Dan LIU1,Meile NI1,Fan WANG1   

  1. 1. Shaanxi Key Laboratory of Chemical Additives for Industry, Shaanxi University of Science and Technology, Xi’an 710021, Shaanxi, China
    2. College of Chemistry and Materials Science, Weinan Normal University, Weinan 714099, Shaanxi, China
  • Received:2019-07-02 Revised:2019-09-29 Online:2019-12-05 Published:2019-12-05
  • Contact: Jinxia TANG

摘要:

以7-羟基-4-甲基香豆素为母核与丙烯酰氯反应,得到香豆素荧光单体。在乳化剂聚氧乙烯辛基苯酚醚-10(OP-10)与引发剂过硫酸铵的作用下,将其与丙烯酰胺、苯乙烯和改性纳米粒子经乳液聚合制备得到荧光乳液。采用红外光谱、核磁共振氢谱、粒径分析、紫外光谱、荧光光谱及紫外加速老化试验等对产物进行结构表征,光学性能研究及应用性能考察。结果表明,复合纳米粒子的荧光乳液粒径分布更加均匀,性质更稳定,且具有良好的光学性能, 涂覆于纸张表面,发现纸张白度得到改善,纸张强度和抗水性均大幅提高,且经过紫外老化后,发现目标产物有更好的抑制纸张返黄的作用。

关键词: 香豆素, 纳米粒子, 乳液, 粒度分布, 稳定性, 白度

Abstract:

7-Hydroxy-4-methylcoumarin was used as the core to react with acryloyl chloride to obtain a fluorescent monomer. Under the action of emulsifier polyoxyethylene octylphenol ether-10 (OP-10) and initiator ammonium persulfate, it was prepared by emulsion polymerization with acrylamide, styrene and modified nanoparticles to obtain a fluorescent emulsion. The products were characterized by infrared spectroscopy, nuclear magnetic resonance spectroscopy, particle size analysis, ultraviolet spectroscopy, fluorescence spectroscopy and ultraviolet accelerated aging test. The optical properties and application properties were investigated. The particle size distribution of the fluorescent emulsion of the composite nanoparticles is more uniform and the properties are more stable. When applied to the surface of the paper, it was found that the initial whiteness of the paper was improved, and the paper strength and water resistance were greatly improved. After UV aging, it was found that the target product has a better effect of inhibiting the yellowing of the paper.

Key words: coumarin, nanoparticles, emulsions, size distribution, stability, whiteness

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