Preparation and properties of fluorescent waterborne polyurethane as paper sizing agent

ZHAO Yanna; ZHAO Yao; ZHAO Chunyan; BAI Zhe; SHI Jianyu; KE Meidong

doi:10.11949/j.issn.0438-1157.20170723

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Preparation and properties of fluorescent waterborne polyurethane as paper sizing agent

更新时间：2025-12-10

- Preparation and properties of fluorescent waterborne polyurethane as paper sizing agent
- CIESC Journal Issue 4, Pages: 1783-1789(2018)
- 作者机构：
  
  陕西科技大学化学与化工学院,陕西,西安,710021
- 作者简介：
- 基金信息：
- DOI：10.11949/j.issn.0438-1157.20170723
  CLC： Q031
- Online First：05 April 2018，
  
  Published：05 April 2018
- 稿件说明：
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ZHAO Yanna, ZHAO Yao, ZHAO Chunyan, et al. Preparation and properties of fluorescent waterborne polyurethane as paper sizing agent[J]. CIESC Journal, 2018, (4): 1783-1789.
DOI：

ZHAO Yanna, ZHAO Yao, ZHAO Chunyan, et al. Preparation and properties of fluorescent waterborne polyurethane as paper sizing agent[J]. CIESC Journal, 2018, (4): 1783-1789. DOI： 10.11949/j.issn.0438-1157.20170723.

摘要

以自制5，7-二羟基-4-甲基香豆素（DHMC）为水性聚氨酯荧光增白改性剂，制备了一系列荧光水性聚氨酯（FWPU）乳液，采用FTIR、1H NMR、DLS和荧光光谱等对荧光水性聚氨酯进行了结构表征和性能测试。将制备得到的荧光水性聚氨酯应用于纸张表面施胶，研究探讨了荧光水性聚氨酯乳液对纸张表面施胶性能的影响。FTIR、1H NMR分析表明，DHMC已被引入到FWPU分子链中；当w（DHMC）=0.6%时，FWPU乳液粒径为86.17 nm，荧光强度最强为40220.44 a.u.（1 a.u.=27.2114 eV）。FWPU乳液具有良好的纸张表面施胶性能，纸张施胶度51.92 s，白度77.93%。

Abstract

A series of fluorescent waterborne polyurethane (FWPU) dispersion had been successfully prepared by importing the fluorescent whitening modifier 5

7-dihydroxy-4-methylcoumarin (DHMC). The structure and properties of FWPU were characterized by FTIR

1H NMR

DLS

fluorescence spectra

the degree of sizing

whiteness and SEM. The surface sizing properties of FWPU emulsion were studied. FTIR and 1H NMR analysis showed that DHMC had been introduced into the molecular chain of FWPU. When w (DHMC)=0.6%

the particle size of FWPU emulsion was 86.17 nm

the fluorescence effect was 40220.44 a.u.(1a.u.=27.2114 eV). The results showed that the FWPU emulsion had an excellent paper sizing property. Paper sizing value could reach 51.92 s

the whiteness was 77.93%.

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