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Paper Information

Journal:   JOURNAL OF COLOR SCIENCE AND TECHNOLOGY   2020 , Volume 13 , Number 4 ; Page(s) 267 To 276.
 
Paper: 

Effect of Siloxane Crosslinking on Colloidal, Mechanical, and Thermal Properties of Self-curable Waterborne Polyurethane Dispersions

 
 
Author(s):  TABATABAEE F., KHORASANI M.*, EBRAHIMI M., GONZALEZ A., Irusta l., Sardon h.*
 
* POLYMAT, Department of Polymer Science and Technology, University of the Basque Country (UPV/EHU), Joxe Mari Korta Center, Avda. Tolosa 72, Donostia San Sebastian 20018, Spain
 
Abstract: 
Self-curable waterborne polyurethane (WPU) dispersions were prepared via acetone process. The effects of (3-aminopropyl) triethoxysilane (APTES) content as crosslinking agent on the properties of WPUs were investigated. To confirm the polymer structure and the presence of alkoxysilane groups, 1H nuclear magnetic resonance and fourier transform infrared spectroscopy were used. Gel content of the sample containing 10 wt% APTES was reported 90. 5% which were revealed highly crosslinking network of the WPU film. Although the particle size went up from 36. 5 to 63 nm by introducing 10 wt% APTES, narrow particle size distributions (PDI < 0. 2) and the absolute value of zeta potentials greater than 40 mV were obtained. Furtheremore, atomic force microscopy showed that the introduction of siloxane crosslinking increased microphase-separation of the polyurethane films. In the presence of 10 wt% APTES, excellent enhancement in water resistance (water absorption < 5%), mechanical properties (Young’ s modulus=420 MPa and tensile strength=46. 7 MPa), and thermal stability (Tmax1=321 º C and Tmax2=407 º C) made this type of crosslinking highly suitable for WPUs in coating applications. J. Color Sci. Tech. 13(2020), 267-276© . Institute for Color Science and Technology.
 
Keyword(s): Waterborne polyurethane,Dispersions,Self-curable,Alkoxysilane groups
 
 
References: 
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Citations: 
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+ Click to Cite.
APA: Copy

TABATABAEE, F., & KHORASANI, M., & EBRAHIMI, M., & GONZALEZ, A., & Irusta, l., & Sardon, h. (2020). Effect of Siloxane Crosslinking on Colloidal, Mechanical, and Thermal Properties of Self-curable Waterborne Polyurethane Dispersions. JOURNAL OF COLOR SCIENCE AND TECHNOLOGY, 13(4 ), 267-276. https://www.sid.ir/en/journal/ViewPaper.aspx?id=726606



Vancouver: Copy

TABATABAEE F., KHORASANI M., EBRAHIMI M., GONZALEZ A., Irusta l., Sardon h.. Effect of Siloxane Crosslinking on Colloidal, Mechanical, and Thermal Properties of Self-curable Waterborne Polyurethane Dispersions. JOURNAL OF COLOR SCIENCE AND TECHNOLOGY. 2020 [cited 2021December09];13(4 ):267-276. Available from: https://www.sid.ir/en/journal/ViewPaper.aspx?id=726606



IEEE: Copy

TABATABAEE, F., KHORASANI, M., EBRAHIMI, M., GONZALEZ, A., Irusta, l., Sardon, h., 2020. Effect of Siloxane Crosslinking on Colloidal, Mechanical, and Thermal Properties of Self-curable Waterborne Polyurethane Dispersions. JOURNAL OF COLOR SCIENCE AND TECHNOLOGY, [online] 13(4 ), pp.267-276. Available: https://www.sid.ir/en/journal/ViewPaper.aspx?id=726606.



 
 
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