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Effects of Soft Monomers on the Water Resistance and Moisture Permeability of Hydrophilic Polyurethane 被引量:4
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作者 权衡 《Journal of Wuhan University of Technology(Materials Science)》 SCIE EI CAS 2010年第5期789-794,共6页
Six groups of segmented polyurethanes with amorphous soft segment domains based on mixed hydrophobic polyester and hydrophilic polyether soft monomers were prepared from 4, 4′ diphenylmethane diisocyanate (MDI), po... Six groups of segmented polyurethanes with amorphous soft segment domains based on mixed hydrophobic polyester and hydrophilic polyether soft monomers were prepared from 4, 4′ diphenylmethane diisocyanate (MDI), polybutylene adipate glycol 2000 (PBA2000), polytetramethylene glycol 1000 (PTMG1000) and polyethylene glycol 1000 (PEG1000) with 1,4-butanediol (BDO) as the chain extender. Furthermore, the representative properties of the hydrophilic polyurethanes, moisture permeability and water resistance, were investigated. The results show that the chemical structure, molecular weight and concentration of soft monomers have remarkable effects on the main application properties of hydrophilic polyurethane. The important factors in diffusion are the content of hydrophilic ether bond and the mobility of hydrophilic chain in the soft phase, which is represented with a good approximation by the average mean molecular weight of soft segment. On the contrary, the functional properties of the hydrophilic polyurethane are almost not affected by its hard segment. 展开更多
关键词 hydrophilic polyurethane POLYETHER POLYESTER WATERPROOF breathable
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Erratum to: A new ecological control method for Pisha sandstone based on hydrophilic polyurethane
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作者 LIANG Zhishui WU Zhiren +2 位作者 Mohammad NOORI YANG Caiqianm YAO Wenyi 《Journal of Arid Land》 SCIE CSCD 2017年第6期953-953,共1页
In this Erratum, we correct the family name of the first author that was spelled as “LINAG” in Journal of Arid Land and the correction is “LIANG”.
关键词 Erratum A new ecological control method Pisha sandstone based hydrophilic polyurethane
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A Structure-properties Study of MDI-based Hydrophilic Polyether-polyester Polyurethane 被引量:1
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作者 权衡 顾振亚 吴穗生 《Journal of Donghua University(English Edition)》 EI CAS 2009年第4期408-412,共5页
A series of segmented polyether-polyester polyurethane with amorphous hydrophilic soft segment domains were prepared from 4,4'- diphenylmethane diisocyanate (MDI), polybutylene adipate (Glycol) 2000 (PBA2000), and... A series of segmented polyether-polyester polyurethane with amorphous hydrophilic soft segment domains were prepared from 4,4'- diphenylmethane diisocyanate (MDI), polybutylene adipate (Glycol) 2000 (PBA2000), and polyethylene glycol 1000 (PEG1000), with 1,4-butanediol (BDO) as the chain extender. Furthermore, several representative properties of the polyurethanes, such as moisture permeability, water resistance, hydrophilic property, and phase inversion temperature, were investigated. The studies show that the structure and concentration of soft segment have a remarkable effect on the main application properties of polyurethane. On the contrary, the functional properties of the polyurethane are almost not affected by its hard segment. 展开更多
关键词 hydrophilic polyurethane POLYETHER polyester structure property
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