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

林产化学与工业 ›› 2015, Vol. 35 ›› Issue (1): 57-62.doi: 10.3969/j.issn.0253-2417.2015.01.009

氢氧化铝改性丙烯酸酯乳液胶黏剂及阻燃性能研究

于向东^1,3, 刘娟¹, 陈日清^1,2, 王春鹏^1,2, 卜洪忠³

1. 中国林业科学研究院林产化学工业研究所;生物质化学利用国家工程实验室;国家林业局林产化学工程重点开放性实验室;江苏省生物质能源与材料重点实验室, 江苏南京 210042;
2. 中国林业科学研究院林业新技术研究所, 北京 100091;
3. 南京工业大学理学院, 江苏南京 210009

收稿日期:2013-12-10 出版日期:2015-02-25 发布日期:2015-03-05
通讯作者: 陈日清(1977-),男,副研究员,博士,主要从事胶黏剂化学研究与开发;E-mail:michaelmao77@163.com。 E-mail:michaelmao77@163.com
作者简介:于向东(1986-),女,江苏泰州人,硕士,从事高分子材料研究工作
基金资助:
中国林科院林业新技术所基本科研业务费专项资金(CAFINT2011K01)

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

YU Xiang-dong^{1 3}, LIU Juan¹, CHEN Ri-qing^{1 2}, WANG Chun-peng^{1 2}, BU Hong-zhong³

1. Institute of Chemical Industry of Forest Products, CAF;National Engineering Lab.for Biomass Chemical Utilization; Key and Open Lab.of Forest Chemical Engineering, SFA;Key Lab.of Biomass Energy and Material, Jiangsu Province, Nanjing 210042, China;
2. Research Institute of Forestry New Technology, Beijing 100091, China;
3. School of Science, Nanjing University of Technology, Nanjing 210009, China

Received:2013-12-10 Online:2015-02-25 Published:2015-03-05

摘要/Abstract

摘要： 采用机械共混方式获得Al(OH)₃改性丙烯酸酯乳液胶黏剂,研究了分散剂种类及用量、增稠剂用量和Al(OH)₃用量对胶黏剂基本性能和流体力学性能的影响。结果表明,在分散剂六偏磷酸钠(SHMP)用量为0.35 %、增稠剂羟乙基纤维素(HEC)用量为0.20 %和阻燃剂Al(OH)₃用量为30%时,改性后丙烯酸酯乳液胶黏剂的性能较好,黏度为1 360 mPa·s,pH值为5.45,贮存30天后稳定性较好,氧指数达到32;流体力学性能研究表明乳液体系为非牛顿假塑性流体弹性体系。阻燃性能研究表明Al(OH)₃改性后丙烯酸酯乳液胶黏剂的热释放速率和烟释放量大大降低,CO生成量降低50%以上,引燃时间由60 s延长至77 s,热释放速率峰值由528 kW/m²降为165 kW/m²,燃烧速率为明显减缓(80 s至110 s),质量损失速率明显降低,有较好的阻燃性。

关键词: 氢氧化铝, 阻燃, 丙烯酸酯, 乳液

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

中图分类号:

TQ35

于向东, 刘娟, 陈日清, 王春鹏, 卜洪忠. 氢氧化铝改性丙烯酸酯乳液胶黏剂及阻燃性能研究[J]. 林产化学与工业, 2015, 35(1): 57-62.

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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氢氧化铝改性丙烯酸酯乳液胶黏剂及阻燃性能研究

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

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