Study of Water Resistance of Polyurethane Coatings Based on Microanalytical Methods DOI Open Access
Chao Xie,

Yufeng Shi,

Zhicheng Si

et al.

Polymers, Journal Year: 2024, Volume and Issue: 16(24), P. 3529 - 3529

Published: Dec. 18, 2024

This study investigates the effect of microstructural changes in polyurethane coatings on their water resistance properties. Polyurethane with varying diluent contents were prepared and tested for penetration mechanical property retention. The time-dependent behavior within at different immersion durations was analyzed using low-field nuclear magnetic resonance (NMR). Furthermore, free volume characteristic molecular groups each coating microscopic techniques, including positron annihilation lifetime spectroscopy (PALS) attenuated total reflectance Fourier-transform infrared (ATR−FTIR). Results indicate that content significantly alters microstructure coatings. With increasing content, both average pore fraction initially decrease then increase, while groups, hydrophilic gradually decline. performance influenced by combined effects groups. Among five formulations, 20% 25% showed a superior resistance, higher retention properties after immersion, relatively low bound all ages. entropy weight method equal used to assess overall following ranking scores: f20 > f25 f30 f15 f10. offers theoretical support guide design practical application real-world engineering projects.

Language: Английский

Preparation and permeation-diffusion performance of one-component high-strength polyurethane grouting materials DOI

Mingtian Wang,

Chengchao Guo, Yuanhong Dong

et al.

Construction and Building Materials, Journal Year: 2025, Volume and Issue: 474, P. 141121 - 141121

Published: April 4, 2025

Language: Английский

Citations

1
Application of novel polymer materials for anti-fouling control of landfills: A comprehensive durability evaluation DOI

Ke Jiao,

Jia Li, Jingwei Zhang

et al.

Journal of Environmental Management, Journal Year: 2025, Volume and Issue: 376, P. 124354 - 124354

Published: Feb. 15, 2025

Language: Английский

Citations

0
Insight into performance and lifetime of ecofriendly pollution barriers in landfill for emergency: A thermogravimetric analysis for novel polymer materials DOI
Jingwei Zhang,

Ke Jiao,

Jia Li

et al.

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 955, P. 177072 - 177072

Published: Oct. 30, 2024

Language: Английский

Citations

0
Study of Water Resistance of Polyurethane Coatings Based on Microanalytical Methods DOI Open Access
Chao Xie,

Yufeng Shi,

Zhicheng Si

et al.

Polymers, Journal Year: 2024, Volume and Issue: 16(24), P. 3529 - 3529

Published: Dec. 18, 2024

This study investigates the effect of microstructural changes in polyurethane coatings on their water resistance properties. Polyurethane with varying diluent contents were prepared and tested for penetration mechanical property retention. The time-dependent behavior within at different immersion durations was analyzed using low-field nuclear magnetic resonance (NMR). Furthermore, free volume characteristic molecular groups each coating microscopic techniques, including positron annihilation lifetime spectroscopy (PALS) attenuated total reflectance Fourier-transform infrared (ATR−FTIR). Results indicate that content significantly alters microstructure coatings. With increasing content, both average pore fraction initially decrease then increase, while groups, hydrophilic gradually decline. performance influenced by combined effects groups. Among five formulations, 20% 25% showed a superior resistance, higher retention properties after immersion, relatively low bound all ages. entropy weight method equal used to assess overall following ranking scores: f20 > f25 f30 f15 f10. offers theoretical support guide design practical application real-world engineering projects.

Language: Английский

Citations

0