通过反应性挤出和含有磺酸盐基团和聚乙二醇链段的分散体制备聚氨酯离聚物,Journal of Applied Polymer Science

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通过反应性挤出和含有磺酸盐基团和聚乙二醇链段的分散体制备聚氨酯离聚物
Journal of Applied Polymer Science ( IF 2.7 ) Pub Date : 2019-03-08 , DOI: 10.1002/app.47719
Guofei Wu ₁ , Dongcheng Sun ₁

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本文介绍了聚氨酯离聚物（PUI）和阴离子/非离子聚氨酯分散体（PUD）的合成方法。在没有有机溶剂的双螺杆挤出机中合成PUI。然后将PUI溶解在丙酮中并分散在水中。蒸馏除去丙酮后获得PUD，并且PUD的固体含量为约55％并且具有优异的稳定性。得到的PUD主要用作粘合剂。PUI是由聚（1,4-丁烯己二酸酯二醇）（PBA）作为软链段，1,4-丁二醇（BDO）和二苯基甲烷二异氰酸酯-50（MDI-50）作为硬链段，聚（乙二醇）甲醚合成的（MPEG）和含聚醚二醇的磺酸盐（SPPG）作为亲水性单体，以及二月桂酸二丁基锡（DBTDL）作为催化剂。粒度，粘度，^-1。还对PUIs薄膜的热性能，拉伸应力-应变和耐水性进行了表征。测试结果表明，膜具有良好的热性能和耐水性，并且在拉伸应力-应变曲线中揭示了结晶聚合物的一些典型特征。分级为4 +©2019 Wiley Periodicals，Inc.J.Appl。Polym。科学 2019，136，47719。

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Preparation of polyurethane ionomers by reactive extrusion and dispersions containing sulfonate groups and polyethylene glycol segments

A synthesis method of polyurethane ionomers (PUIs) and anionic/nonionic polyurethane dispersions (PUDs) is introduced in this article. PUIs were synthesized in twin‐screw extruder without organic solvent. PUIs were then dissolved in acetone and dispersed in water. The PUDs were obtained after distilling off acetone and the solid content of PUDs was about 55% and had excellent stability. PUDs obtained were mainly used as adhesives. PUIs were synthesized from poly(1,4‐butylene adipate glycol) (PBA) as soft segments, 1,4‐butanediol (BDO) and diphenylmethane diisocyanate‐50 (MDI‐50) as hard segments, poly(ethylene glycol) methyl ether (MPEG) and polyether diol‐containing sulfonate (SPPG) as hydrophilic monomers, and dibutyltin dilaurate (DBTDL) as catalyst. The particle size, viscosity, and adhesive properties of the PUDs were measured and the results indicated that PUDs obtained have excellent stability and adhesive properties, such as the maximum initial peel strength and T‐peel strength were 2.38 and 11.82 N mm⁻¹, respectively. The thermal properties, tensile stress–strain, and water resistance of the PUIs films were also characterized. The test results showed that films have good thermal properties and water resistance properties, and some typical characteristics of crystalline polymers were revealed in the tensile stress–strain curves. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 47719.

更新日期：2019-03-08

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