Synthesis and Properties of Sulfonated Waterborne Polyurethane Modified by ESO-based Polyols

Song-song Sheng; Ping-ping Jiang; Ping-bo Zhang; Xue-wen Gao; Min-yan Tang; Xiao-qin Yu; Yan-min Bao

doi:10.11777/j.issn1000-3304.2016.16076

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Synthesis and Properties of Sulfonated Waterborne Polyurethane Modified by ESO-based Polyols

Research Article | 更新时间：2021-03-19

- Synthesis and Properties of Sulfonated Waterborne Polyurethane Modified by ESO-based Polyols
- Acta Polymerica Sinica Issue 11, Pages: 1587-1593(2016)
- 作者机构：
  
  1.食品胶体与生物技术教育部重点实验室江南大学化学与材料工程学院无锡 214122
  2.嘉和实业(苏州)有限公司苏州 215021
  3.昆山嘉力普制版粘合剂油墨有限公司昆山 215300
- 作者简介：
- 基金信息：
- DOI：10.11777/j.issn1000-3304.2016.16076
  CLC：
- Published：2016-11，
  
  Received：15 March 2016，
  
  Revised：12 May 2016，
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Song-song Sheng, Ping-ping Jiang, Ping-bo Zhang, Xue-wen Gao, Min-yan Tang, Xiao-qin Yu, Yan-min Bao. Synthesis and Properties of Sulfonated Waterborne Polyurethane Modified by ESO-based Polyols. [J]. Acta Polymerica Sinica (11):1587-1593(2016)
DOI：

Song-song Sheng, Ping-ping Jiang, Ping-bo Zhang, Xue-wen Gao, Min-yan Tang, Xiao-qin Yu, Yan-min Bao. Synthesis and Properties of Sulfonated Waterborne Polyurethane Modified by ESO-based Polyols. [J]. Acta Polymerica Sinica (11):1587-1593(2016) DOI： 10.11777/j.issn1000-3304.2016.16076.

摘要

用2-乙基己醇(异辛醇)对环氧大豆油进行开环，生成环氧大豆油多元醇，并利用其对由异佛尔酮二异氰酸酯(IPDI)、聚己内酯二元醇(PCL)和乙二胺基乙磺酸钠(AAS)为主要合成原料的磺酸型水性聚氨酯(SWPU)进行改性，考察了不同多元醇含量对磺酸型水性聚氨酯乳液以及胶膜性能的影响.首先，通过FTIR和

H-NMR证实了环氧大豆油多元醇的合成；然后经过粒径测试、耐水性测试、接触角测试、机械性能测试、TG测试等检测表明：磺酸型水性聚氨酯成功合成，随着多元醇含量的增加，水性聚氨酯乳液粒径逐渐增大；胶膜的吸水率逐渐减小，并趋于平缓；力学性能拉伸强度逐渐增强，而断裂伸长率下降.但当环氧大豆油多元醇添加量过大时，导致最后乳液无法分散，乳化失败.当多元醇含量与PCL质量比为0.2时，胶膜吸水率由50.14%减小至12.27%，接触角为103.3°，拉伸强度由8.16 MPa增至21.77 MPa.通过TG表明，分子结构中多元醇的引入，胶膜的耐热性有明显提高.

Abstract

Polyols based epoxidized soybean oil was synthesized by ring-opening addition reaction of epoxidized soybean oil with 2-ethyl hexanol (isooctanol).Then sulfonated waterborne polyurethane was synthesized using isophorone diisocyanate (IPDI)

polycaprolactone diol (PCL)

ethylenediamine sodium acetate (AAS) and the ESO-based polyols

and the film had been fabricated successfully by using the obtained waterborne polyurethane as the binder.Polyols was characterized by FTIR and

H-NMR

which indicated polyols was successfully synthesized in the experiment.Influence of the content of polyols on the properties of sulfonated waterborne polyurethane emulsions and their films was evaluated by a series of measurements

including particle size test

water absorption test

static contact angle test

mechanical performance test and TGA.The results showed that the sulfonated waterborne polyurethane modified by ESO-based polyols had been successfully synthesized confirmed by FTIR

and with the increase of the content of polyols

the particle size of the sulfonated waterborne polyurethane emulsion increased gradually

the water absorption of the film decreased and then flatten out when the content of polyols continued to increase during the fabrication of the modified sulfonated waterborne polyurethane.Furthermore

the tensile strength of the film of sulfonated waterborne polyurethane increased

and elongation at break decreased with the increase of the content of polyols.However

too large amount of polyols in the synthesis process of sulfonated waterborne polyurethane would result in destabilization of the emulsion dispersion and lead to failure of the emulsion at last.The film of sulfonated waterborne polyurethane presented the superior performance when the mass ratio of polyols and PCL was 0.2.Water absorption rate of the film decreased from 50.14% to 12.27%

the water contact angle came to 103.3°

and the tensile strength increased greatly from 8.16 MPa to 21.77 MPa as the mass ratio of polyols and PCL increasing from 0 to 0.2.At last

the TG analysis showed the improvement of heat resistance of the film

which would be attributed to the incorporation of polyols.

关键词

磺酸型水性聚氨酯环氧大豆油力学性能接触角热重分析

Keywords

Sulfonated waterborne polyurethaneEpoxy soybean oilMechanical propertiesContact angleTG

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Related Institution

College of Materials Science and Engineering, Qingdao University

Department of Polymer Science and Engineering, Zhejiang University

State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University

Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University

Zheda Institute of Advanced Materials and Chemical Engineering

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