接触角法研究氨基甲酸酯基/脲键对聚酯型聚氨酯附着牢度的影响

赵玉梅; 张博; 刘美琴; 石红翠

doi:10.14028/j.cnki.1003-3726.2024.23.210

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接触角法研究氨基甲酸酯基/脲键对聚酯型聚氨酯附着牢度的影响

研究论文 | 更新时间：2024-01-25

- 接触角法研究氨基甲酸酯基/脲键对聚酯型聚氨酯附着牢度的影响
- Study on the Effect of Urethane/Urea on the Adhesion Fastness ofPolyester Polyurethane by Contact Angle
- 高分子通报 2024年37卷第2期页码：245-256
- 作者机构：
  
  1..山西铁道职业技术学院，太原 030013
  2..山西省应用化学研究所(有限公司)，涂装高分子功能材料山西省重点实验室，太原 030027
- 作者简介：
  
  *石红翠，E-mail: soniashc@163.com
- 基金信息：
  
  山西省教育科学“十四五”规划2022 年度课题(GH-220230);山西省重点研发计划（高新领域）项目(201903D121113);山西省重点研发计划项目(202202040201013)
- DOI：10.14028/j.cnki.1003-3726.2024.23.210
  中图分类号：
- 纸质出版日期：2024-02-20，
  
  收稿日期：2023-06-21，
  
  录用日期：2023-08-15
- 稿件说明：
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引用：赵玉梅, 张博, 刘美琴, 石红翠. 接触角法研究氨基甲酸酯基/脲键对聚酯型聚氨酯附着牢度的影响. 高分子通报, 2024, 37(2), 245–256

Citation: Zhao, Y. M.; Zhang, B.; Liu, M. Q.; Shi, H. C. Study on the effect of urethane/urea on the adhesion fastness of polyester polyurethane by contact angle. Polym. Bull. (in Chinese), 2024, 37(2), 245–256
引用：赵玉梅, 张博, 刘美琴, 石红翠. 接触角法研究氨基甲酸酯基/脲键对聚酯型聚氨酯附着牢度的影响. 高分子通报, 2024, 37(2), 245–256 DOI： 10.14028/j.cnki.1003-3726.2024.23.210.

Citation: Zhao, Y. M.; Zhang, B.; Liu, M. Q.; Shi, H. C. Study on the effect of urethane/urea on the adhesion fastness of polyester polyurethane by contact angle. Polym. Bull. (in Chinese), 2024, 37(2), 245–256 DOI： 10.14028/j.cnki.1003-3726.2024.23.210.

摘要

以聚酯二元醇XCP-2000PM (PM)为软段，合成了系列具有不同氨基甲酸酯基/脲键摩尔比的聚酯型聚氨酯(PU)，通过接触角法研究氨基甲酸酯基/脲键摩尔比对聚酯型聚氨酯胶膜表面能，及双向拉伸聚对苯二甲酸乙二醇酯聚酯薄膜(BOPET)与上述聚酯型聚氨酯之间黏附功的影响，并将其与BOPET粘结，研究氨基甲酸酯基/脲键摩尔比对水煮前后实际附着牢度的影响，并对其耐热性进行研究。结果表明：随着氨基甲酸酯基/脲键摩尔比的改变，表面能与黏附功的变化较小，表面能以非极性Lifshitz-vander Waals分量

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为主，黏附功以非极性

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为主，二者中的酸碱作用贡献较小，但PU-P1、PU-N1表现相对较强的酸性作用。实际测试的附着牢度与理论黏附功和表面能存在一定的差异，当氨基甲酸酯基/脲键为10/90时，PU-P1、PU-N1的黏附功相对较低，因表面能中的酸碱作用及较好的润湿铺展性，而使实际附着牢度相对较好；PU-B1的黏附功最大，较大的表观黏度使其实际附着牢度最小；当氨基甲酸酯基/脲键为40/60时，附着牢度相对最好，与理论黏附功、表面能具有较好的一致性。涂层试样水煮30 min后，附着牢度均存在一定程度的下降，PU-N、PU-E能保持较好的附着牢度，而PU-B下降明显。随着氨基甲酸酯基/脲键摩尔比增大，聚氨酯初始热分解温度

及

max

总体呈下降趋势，其中PU-B的

最高，而PU-P

最低。

Abstract

A series of polyester polyurethanes (PU) with different molar ratios of urethane/urea were synthesized by using polyester diol XCP-2000PM (PM) as the soft segment. The influence of urethane/urea on the surface energy of polyester polyurethane film and the adhesion work between bioriented stretching polyester film (BOPET) and PU were studied by contact angle test. The influence of urethane/urea molar ratio on adhesion fastness before and after boiling was studied when by bonded with BOPET

and its heat resistance was also studied. The results showed that with the change of urethane/urea

the overall changes of surface energy and adhesion work were small. The surface energy was mainly nonpolar Lifshitz-Vander Waals γ

and the adhesion work was mainly nonpolar work

. The acid-base contribution of the two was small

but PU-P1 and PU-N1 showed relatively strong acidic effect. There were some differences between the actually tested adhesion fastness and the theoretical surface energy and adhesion work. When the urethane/urea was 10/90

the adhesion work of PU-P1 and PU-N1 were relatively low

and the actual adhesion fastness was elatively good due to the acid-base effect in the surface energy and better wettability and spreadability; The adhesion work of PU-B1 was the largest

and its actual adhesion fastness was the smallest due to its larger apparent viscosity. When the urethane/urea was 40/60

the adhesion fastness were relatively best

which were consistent with the theoretical adhesion work and surface energy. After the coating samples were boiled for 30 min

the adhesion fastness decreased to a certain extent

while PU-N and PU-E could maintain good adhesion fastness

while PU-B decreased significantly. With the increase of urethane/urea

the initial thermal decomposition temperature

and

max

of polyurethane generally showed a downward trend

and the

of PU-B was the highest

while the

of PU-P was the lowest.

关键词

氨基甲酸酯基/脲键聚酯型聚氨酯接触角表面性能附着牢度

Keywords

Urethane/UreaPolyester polyurethaneContact angleSurface propertiesAdhesion fastness

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