聚多元醇組成對無溶劑型高固含量（60 wt.%）水性PU成品物性之影響

The Effects of the Polyol Compositions on Solvent Free High Solid Content (60 wt.%) Polyurethane Dispersions

駱勇慎(Yung-Shen Luo) ； 曾文旭(Wun-Syu Zeng) ； 李大剛(Da-Kong Lee) ； 廖睿宏(Ruei-Hong Liao)

《國立宜蘭大學工程學刊》 10期 (2014/12) Pp. 57-72

https://doi.org/10.6176/BCE.2014.10.15

摘要

本研究致力於開發環保型無溶劑高固含量聚氨酯分散液（polyurethane dispersion,PUD），本系列PUD成品以（HDI:IPDI=3:7）／不同組成polyol/DMBA/TEA/MA=3:1:1:1:0.5，預聚物當量設定在3,900 g/eq.mol。研究利用不同官能基之聚醚、聚酯、聚碳酸酯等聚多元醇，進行摻混，經雷射粒徑儀、薄膜拉力機、黏度儀，探討其組成對成品物性之影響。實驗結果顯示，以聚酯型PBA 2000與聚碳酸酯PCDL 4671為4：6之當量數比，摻混型二元醇為基材之PUD，其成品為無溶劑且固含量60 wt.%、粒徑149nm、黏度1,016cps，且拉力高達56.6MPa之PUD成品。

關鍵字

無溶劑 ； 高固含量 ； 聚氨酯分散液 ； 聚多元醇

並列摘要

In this study, high solid content polyurethane dispersions (PUDs) were synthesized by a solvent free process. This series PUDs were based on (HDI : IPDI=3 : 7)/various polyol/DMBA/TEA/MA with the molar ratio of 3:1:1:1:0.5 and prepolymer equivalent were controlled at 3,900 g/ eq. mol. Various polyol functional groups such as polyether, polyester and polycarbonate, were blend with different molar ratio, respectively. The properties of these PUDs were characterized by particle size, viscosity tests and tensile property. From the experiments results, 60 wt.% solid content solvent free PUDs by incorporating of PBA 2000 to blend with PCDL 4671 with the equivalent ratio of 4：6, with a particle size of 149 nm and viscosity of 1,016cps were obtained. The final product displayed distinguished tensile strength of 56.6 MPa.

並列關鍵字

Solvent free ； High solid content ； Polyurethane dispersion ； Polyol