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- W2356323290 abstract "A series of aqueous polyurethane dispersions were synthesized from polyether 220, isophorone diisocyanate (IPDI), dimethylol propionic acid (DMPA), butylene diol(BD) and ethylene diamine (EA). The research covered the effect of content of EA on the stability, the particle size, the viscosity of dispersions, the ratio of absorbent water and the mechanical properties of cast films. The results show that the particle size of dispersion increase, viscosity decrease and the storage stability to be worse with increasing the ratio of EA in reactants. The tensile strength of cast films increase and elongation at break decrease with increasing the ratio of EA. The ratio of EA has no obvious effect on the ratio of absorbent water of cast films. The property of anti-solvent increase with increasing the content of EA. DSC results show that the Tg of hard segment increase. These results indicate that the separation of hard phase and soft phase enhance with increasing the ratio of EA. The ATR shows typical IR spectrum of PPG-based PU." @default.
- W2356323290 created "2016-06-24" @default.
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- W2356323290 date "2005-01-01" @default.
- W2356323290 modified "2023-09-22" @default.
- W2356323290 title "The effect of ethylene diamine extender on the properties of aqueous polyurethane" @default.
- W2356323290 hasPublicationYear "2005" @default.
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