| 油酸湿法表面改性氢氧化铝阻燃剂的正交优化 |
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| 作者单位： | ;1.安阳工学院化学与环境工程学院 |
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| 摘 要： | 以含不饱和键的油酸为改性剂,用湿法表面改性氢氧化铝(ATH)阻燃剂.采用正交试验法考察了改性剂用量、改性温度和改性时间对改性ATH的活化指数及其在分散介质中相对黏度的影响,通过傅里叶变换红外光谱仪分析了表面改性ATH的表面结构.结果表明:m_(油酸)∶m_(ATH)为0.025∶1,改性温度为90℃,改性时间为45min为最佳工艺条件;油酸与ATH以离子键结合,表面性能由亲水疏油变为亲油疏水,达到了对ATH阻燃剂改性修饰的目的.
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| 关 键 词： | 正交试验 氢氧化铝 油酸 表面改性 阻燃剂 |
Optimization of Oleic Acid Surface Modification of Aluminum Trihydroxide Flame Retardant via Orthogonal Experiment |
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| Institution: | ,Department of Chemical and Environmental Engineering,Anyang Institute of Technology |
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| Abstract: | Wet surface modification of aluminum trihydroxide(ATH)flame retardant has been carried out with oleic acid.The effects of processing time,processing temperature and quantity of reagents on the activation index and relative viscosity were studied with orthogonal method as the experimental technique.The thermal stability and structure of ATH were characterized through thermogravimetry and fourier transform infrared spectroscopy.It was found the optical modification conditions were:m(modifier):m(aluminum hydroxide)was 0.025∶1,the modified temperature was 90 ℃ and modified time was 45 min.ATH be bonded with the Oleic by ionic bonding and the surface property of ATH powder changes obviously after modification,The modified results showed that the hydrophile-oleophobic ATH turns into lipophilic-hydrophobic ATH. |
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| Keywords: | orthogonal experiment aluminum hydroxide oleic acid surface modification flame retardant |
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