Properties of the Soy Protein Isolate/PVAc Latex Blend Adhesives

Abstract:

Soybean proteins have shown great potential for use as renewable, environmentally friendly adhesives. In this research, poly(vinyl acetate)(PVAc) latex and some auxiliary agent were used to modify soy protein isolate(SPI). The chemical microstructure of the adhesives was obtained by means of Fourier transform infrared spectrometry (FTIR). The influence factors of the bonding strength and the water resistance of SPI adhesive were studied by different mass ratios of the SPI and PVAc latex, the blending time and the crosslink time. A better synthesis condition is as follow, the mass concentration of SPI is 13%; the mass concentrations of urea, PVAc latex and the crosslinker is 6%, 11.1% and 1.5%, respectively(relative to the total mass of SPI and water), and the crosslink time is 1.5h. The thermal properties are studied and the mechanism is discussed.

• Periodical: Advanced Materials Research (Volumes 550-553)
• Pages: 1103-1107
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.550-553.1103
• Online since: July 2012
• Authors: Nian Zeng, Jian Jun Xie, Chu Ding
• Keywords: Adhesive, Blend, Pvac Latex, Sodium Dodecyl Sulfate (SDS), Soy Protein Isolate, Urea

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