Properties of O/W Raw Lacquer Emulsion Prepared via Mixed Emulsifier UE20/PVA

Chem. J. Chinese Universities

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Properties of O/W Raw Lacquer Emulsion Prepared via Mixed Emulsifier UE20/PVA

ZHENG Yan-Yu^1,2, HU Bing-Huan¹, LIN Jin-Huo¹*

1. College of Chemistry and Material Science, Fujian Normal University, Fuzhou 350007, China;
2. Institute of Chemistry and Biology, Quanzhou Normal College, Quanzhou 362000, China

Received:2008-01-17 Revised:1900-01-01 Online:2008-07-10 Published:2008-07-10
Contact: 林金火

Abstract

Abstract: The O/W type raw lacquer emulsion(RLE) was prepared by the mixed emulsifier urushiol-based emulsifier(UE20)/polyvinyl alcohol(PVA). The effects of mass ratio of UE20 to PVA, mixed emulsifier mass fraction(w_ME), mass ratio of water to raw lacquer, temperature and storage time on the properties of RLE were investigated. The effect of the w_ME on the diameter of RLE particles were observed via JSM-6380L TEM. The results show that the viscosity of RLE increased with increasing the PVA content. At a low concentration of w_ME, RLE belonged to pseudoplastic fluids and shear-thinning character was observed. As w_MEwas increased to no less than 10.0%, RLE exhibited swell fluids characteristics and the lower viscosity of RLE was observed. Both the interreaction between RLE particles and the stability of RLE decreased with increasing RLE temperature, similar phenomena was observed with increasing the water content. The orthogonal experiment shows that the main influential factor which affected the stability and viscosity of RLE was w_ME, secondly mass ratio of water to raw lacquer. With increasing w_ME, erose particles of RLE translated into sphericity and the diameter of RLE particles decreased.

Key words: O/W raw lacquer emulsion, Mixed emulsifier UE20/PVA, Viscosity, Stability

CLC Number:

O631
O648.2

TrendMD:

ZHENG Yan-Yu^1,2, HU Bing-Huan¹, LIN Jin-Huo¹*. Properties of O/W Raw Lacquer Emulsion Prepared via Mixed Emulsifier UE20/PVA[J]. Chem. J. Chinese Universities, doi: .

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Properties of O/W Raw Lacquer Emulsion Prepared via Mixed Emulsifier UE20/PVA

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