Synthesis and characterization of anionic/non-ionic type high solid content polyurethane dispersion based on sulfonate and monofunctional polyethylene oxide polyether

SUN Dongcheng; HUANG Zhongyuan

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Synthesis and characterization of anionic/non-ionic type high solid content polyurethane dispersion based on sulfonate and monofunctional polyethylene oxide polyether

更新时间：2025-12-10

- Synthesis and characterization of anionic/non-ionic type high solid content polyurethane dispersion based on sulfonate and monofunctional polyethylene oxide polyether
- CIESC Journal Issue 2, Pages: 496-501(2009)
- 作者机构：
  
  华南理工大学化学与化工学
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Online First：05 February 2009，
  
  Published：05 February 2009
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SUN Dongcheng, HUANG Zhongyuan. Synthesis and characterization of anionic/non-ionic type high solid content polyurethane dispersion based on sulfonate and monofunctional polyethylene oxide polyether[J]. CIESC Journal, 2009, (2): 496-501.
DOI：

SUN Dongcheng, HUANG Zhongyuan. Synthesis and characterization of anionic/non-ionic type high solid content polyurethane dispersion based on sulfonate and monofunctional polyethylene oxide polyether[J]. CIESC Journal, 2009, (2): 496-501. DOI：

摘要

采用磺酸盐聚醚二元醇（SPPG）和聚乙二醇单甲醚（PEOM）为亲水单体，聚碳酸酯二醇（PCDL）、聚四氢呋喃二醇（PTMG）、异佛二酮二异氰酸酯（IPDI）、乙二胺（EDA）为原料，通过预聚体法制备了固含量50%以上的聚氨酯分散体（PUD）。研究表明，PUD的ζ电位处于-45～-65 mV之间，分散体稳定性优异。平均粒径处于80～140 nm之间，粒径多分布于60～200 nm范围内，磺酸盐基团的增加使胶粒平均粒径变小，粒径分布变窄;NCO/OH摩尔比和PCDL的增加使胶粒平均粒径趋于变大，[JP+2]粒径分布变宽。透射电镜（TEM）显示，分散体胶粒呈大小不一的球形结构。PUD的黏度随剪切速率的增加而下降，呈现假塑性流体的特征。

Abstract

Polyurethane dispersions (PUDs) with solid content above 50% were synthesized by using polyether diol containing sulfonate (SPPG)

monofunctional polyethylene oxide polyether initiated by methanol(PEOM)

polycarbonate diol (PCDL)

polyoxytetramethylene glycol(PTMG)

isophorone diisocyanate (IPDI) and ethylene diamine (EDA) by the prepolymer method.The results showed that the Zeta potentials of PUDs were between -45 mV and -65 mV. The average particle sizes of PUDs were mainly in the range of 80—140 nm and the particle size distributions of PUD were mostly in the range of 60—200 nm.The average particle sizes decreased and the particle size distributions narrowed when the sulfonate group content increased and the molar ratio of NCO/OH and the PCDL content decreased.TEM analysis showed that the spherical shapes of the particle varied in a specific range.With the increase of shear rate

the viscosity of PUDs reduced

showing pseudo-plastic characteristics.

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Related Institution

华南理工大学化学与化工学院

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