Influences of Soft Monomers on the Application Properties of Hydrophilic Polyurethane with Mixed Polyether Segment

Heng Quan; Zhen Ya Gu

doi:10.4028/www.scientific.net/AMR.331.139

Paper Titles

Influence of Mechanical Properties of Lightweight Silk Fabrics on Seam Shrinkage
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Statistical Property of Ideal Drafting Sliver
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Tensile Properties Study of Polyester/Cotton/Silk Tri-Component Sirofil Composite Yarn
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Surface Modification of Polyester Fibers by Encasing Sucrose Ester and Grafting Soybean Protein
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Influences of Soft Monomers on the Application Properties of Hydrophilic Polyurethane with Mixed Polyether Segment
p.139

Preparation and Properties of Cationic Graft Starch Sizing Agent
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Evolutionary Engineering of Bacillus for Terephthalic Acid Degradation
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Correction for Classical Theory of Yarn Cross-Section Shape in Woven Fabric
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Analysis of Color Symbology Focused on Folk Costume Colors in Northern and Southern Regions of China during Republic Period
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Influences of Soft Monomers on the Application Properties of Hydrophilic Polyurethane with Mixed Polyether Segment

Abstract:

A series of hydrophilic polyether polyurethanes were prepared with two-steps technique from 4,4’- diphenylmethane diisocyanate (MDI), polytetramethylene glycol 1000 (PTMG1000) and polyethylene glycol 1000 (PEG1000) with 1,4-butanediol (BDO) as the chain extender. Further more, the relationships between structure and moisture permeability, water resistance, hydrophility and phase inversion temperature (PIT) of the polyurethanes was investigated. For polyether polyurethanes with nicer micro phase separation structure, the studies show that the hydrophilic ether bond content and mobility of soft segment chains have decisive effect on their water resistance, moisture permeability and hydrophility without reference to the soft segment content on the whole.