氢氧化铝改性丙烯酸酯乳液胶黏剂及阻燃性能研究

doi:10.3969/j.issn.0253-2417.2015.01.009

Abstract

Abstract: The acrylate emulsion adhesive (EL) modified with Al(OH)₃ was prepared by mechanical mixing method. The effects of the types of polyacrylic acid sodium salt (DP) and sodium hexametaphosphate (SHMP), amounts of the dispersing agents, the amounts of the thickening agent and Al(OH)₃ on the basic functions of the acrylate emulsion adhesive and its fluid mechanics performances was studied. The results showed that the acrylate emulsion adhesive had relatively good properties with viscosity of 1 360 mPa·s, pH value of 5.45, and better storage stability in 30 days. The oxygen index reached 32 under 0.35% of the dispersing agent SHMP, 0.20 % of the thickening agent hydroxyethyl cellulose(HEC), and 30% of the flame retardant Al(OH)₃. The mechanical properties of fluids showed that the acrylate emulsion system was the elastic system of non-Newtonian pseudoplastic fluid. Compared with the acrylate emulsion adhesive, the flame retardant properties showed that the acrylate emulsion adhesive modified with Al(OH)₃ had better flame retardant since the smoke and heat release decreased greatly. The reduction of CO generation was more than 50%, and the ignition time reduced.

Key words: aluminum hydroxide, flame-retardant, acrylate, emulsion

CLC Number:

TQ35

YU Xiang-dong, LIU Juan, CHEN Ri-qing, WANG Chun-peng, BU Hong-zhong. Modification of Acrylate Emulsion Adhesive with Aluminum Hydroxide and Its Flame Retardancy[J]. Chemistry and Industry of Forest Products, 2015, 35(1): 57-62.

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Modification of Acrylate Emulsion Adhesive with Aluminum Hydroxide and Its Flame Retardancy

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