Preparation and Properties of DMF-Based Polyurethanes Containing Bio-Polyol/Ester-Polyol for Wet-Type Polyurethane Artificial Leather 


Vol. 25,  No. 1, pp. 7-13, Mar.  2019
10.7464/ksct.2019.25.1.007


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  Abstract

Recently, attention has been paid to obtaining bio-polyols from renewable resources. Successful use of these natural ingredients successfully produced in the industry for the synthesis of various polyurethanes is a very important task. In this study, a series of dimethylformamide (DMF) based polyurethanes were synthesized from methylene diphenyl diisocyanate (MDI)/1, 4-butanediol and bio-polyol (polytrimethylene ether glycol based on 1, 3-propanediol : B-POL)/polyester polyol (polyadipate diol based on 1,4-butandiol : H-PET). The effect of different ratio of bio-polyol (B-POL)/polyester polyol (H-PET) on the physical properties of polyurethane was investigated. As the B-POL content in B-POL/H-PET mixture increased, the glass transition of soft segment (Tgs) and tensile strength of polyurethane decreased, however, the elongation at break and tear strength increased. On the other hand, artificial leather was produced by wet process using synthesized DMF-based polyurethanes. It was found that there was almost no difference in the effect of the B-POL/H-PET composition on the average size and density (the number of cells per unit volume) of the porous cells formed in artificial leather. These results show that there is no problem in using bio-polyol (B-POL) based polyurethane for artificial leather produced by wet process.

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  Cite this article

[IEEE Style]

S. SH, C. PJ, K. JW, P. JH, L. JY, L. YH, K. HD, "Preparation and Properties of DMF-Based Polyurethanes Containing Bio-Polyol/Ester-Polyol for Wet-Type Polyurethane Artificial Leather," Clean Technology, vol. 25, no. 1, pp. 7-13, 2019. DOI: 10.7464/ksct.2019.25.1.007.

[ACM Style]

Sur SH, Choi PJ, Ko JW, Park JH, Lee JY, Lee YH, and Kim HD. 2019. Preparation and Properties of DMF-Based Polyurethanes Containing Bio-Polyol/Ester-Polyol for Wet-Type Polyurethane Artificial Leather. Clean Technology, 25, 1, (2019), 7-13. DOI: 10.7464/ksct.2019.25.1.007.

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