Properties of waterborne polyurethane modified by waterborne hyperbranched polyurethane

Xing Tian; Jie Li; Yunjun Luo; Xiaomeng Li

Properties of waterborne polyurethane modified by waterborne hyperbranched polyurethane

Xing Tian, Jie Li, Yunjun Luo^*, Xiaomeng Li

^*Corresponding author for this work

School of Material Science and Engineering

Beijing Institute of Technology

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

Modified waterborne polyurethane was blended with waterborne hyperbranched polyurethane. The rheological, mechanical, thermal properties and microstructure of modified waterborne polyurethane were investigated by viscosity, static tensile test, differential scanning calorimetry and transmission electron microscope. The results show that the viscosity of the modified emulsion can be reduced after blended with waterborne hyperbranched polyurethane. The tensile strength and the elongation at break of modified waterborne polyurethane are enhanced, of which the largest increase reaches 124.69% and 20.13%, respectively. ΔT_g and microphase separation reach the maximum with the addition of 6% SWPU6, indicating that the improvement of mechanical properties is caused by the increasing of polyurethane microphase separation degree.

Original language	English
Pages (from-to)	19-22
Number of pages	4
Journal	Gaofenzi Cailiao Kexue Yu Gongcheng/Polymeric Materials Science and Engineering
Volume	29
Issue number	9
Publication status	Published - Sept 2013

Keywords

Hyperbranched polymers
Mechanical properties
Microstructure
Waterborne polyurethane

Cite this

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title = "Properties of waterborne polyurethane modified by waterborne hyperbranched polyurethane",

abstract = "Modified waterborne polyurethane was blended with waterborne hyperbranched polyurethane. The rheological, mechanical, thermal properties and microstructure of modified waterborne polyurethane were investigated by viscosity, static tensile test, differential scanning calorimetry and transmission electron microscope. The results show that the viscosity of the modified emulsion can be reduced after blended with waterborne hyperbranched polyurethane. The tensile strength and the elongation at break of modified waterborne polyurethane are enhanced, of which the largest increase reaches 124.69% and 20.13%, respectively. ΔTg and microphase separation reach the maximum with the addition of 6% SWPU6, indicating that the improvement of mechanical properties is caused by the increasing of polyurethane microphase separation degree.",

keywords = "Hyperbranched polymers, Mechanical properties, Microstructure, Waterborne polyurethane",

author = "Xing Tian and Jie Li and Yunjun Luo and Xiaomeng Li",

year = "2013",

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language = "English",

volume = "29",

pages = "19--22",

journal = "Gaofenzi Cailiao Kexue Yu Gongcheng/Polymeric Materials Science and Engineering",

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T1 - Properties of waterborne polyurethane modified by waterborne hyperbranched polyurethane

AU - Tian, Xing

AU - Li, Jie

AU - Luo, Yunjun

AU - Li, Xiaomeng

PY - 2013/9

Y1 - 2013/9

N2 - Modified waterborne polyurethane was blended with waterborne hyperbranched polyurethane. The rheological, mechanical, thermal properties and microstructure of modified waterborne polyurethane were investigated by viscosity, static tensile test, differential scanning calorimetry and transmission electron microscope. The results show that the viscosity of the modified emulsion can be reduced after blended with waterborne hyperbranched polyurethane. The tensile strength and the elongation at break of modified waterborne polyurethane are enhanced, of which the largest increase reaches 124.69% and 20.13%, respectively. ΔTg and microphase separation reach the maximum with the addition of 6% SWPU6, indicating that the improvement of mechanical properties is caused by the increasing of polyurethane microphase separation degree.

AB - Modified waterborne polyurethane was blended with waterborne hyperbranched polyurethane. The rheological, mechanical, thermal properties and microstructure of modified waterborne polyurethane were investigated by viscosity, static tensile test, differential scanning calorimetry and transmission electron microscope. The results show that the viscosity of the modified emulsion can be reduced after blended with waterborne hyperbranched polyurethane. The tensile strength and the elongation at break of modified waterborne polyurethane are enhanced, of which the largest increase reaches 124.69% and 20.13%, respectively. ΔTg and microphase separation reach the maximum with the addition of 6% SWPU6, indicating that the improvement of mechanical properties is caused by the increasing of polyurethane microphase separation degree.

KW - Hyperbranched polymers

KW - Mechanical properties

KW - Microstructure

KW - Waterborne polyurethane

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SN - 1000-7555

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JF - Gaofenzi Cailiao Kexue Yu Gongcheng/Polymeric Materials Science and Engineering

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Properties of waterborne polyurethane modified by waterborne hyperbranched polyurethane

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