表面技术2017，Vol.46Issue(4)：217-221,5.DOI:10.16490/j.cnki.issn.1001-3660.2017.04.035
钛酸酯偶联剂表面改性纳米氢氧化铝阻燃剂的工艺
Optimization of Titanate Coupling Agent Surface Modification of Nano-sized Aluminum Trihydroxide Flame Retardant
摘要
Abstract
The work aims to improve the dispersivity and compatibility of nano-sized aluminum trihydroxide (Nano-ATH) flame retardant modified in chemical grafting method instead of traditional physical adsorption method. Wet surface modifica-tion of Nano-ATH was carried out with titanate coupling agent UP-311. Effects of coupling agent usage, modification tempera-ture and modification time on particle size of Nano-ATH were studied in orthogonal experiment method. The modification ef-fect on Nano-ATH prepared under optimal modification conditions was evaluated by such analytical means as infrared spec-troscopy, particle size and Zeta potential, respectively. The optimal modification conditions were: m (modifier):m (Nano-ATH) as 0.03:1, modification temperature as 75℃, and modification time as 30 min. Nano-ATH could be bonded with titanate coupl-ing agent UP-311 by virtue of chemical bond. Surface property of the Nano-ATH powder is changed obviously after modifica-tion, the hydrophile-oleophobic Nano-ATH turns into lipophilic-hydrophobic Nano-ATH, and the purpose of surface modifica- tion is achieved.关键词
纳米氢氧化铝/正交实验/阻燃剂/表面改性/钛酸酯偶联剂Key words
nano-sized aluminum hydroxide/orthogonal experiment/flame retardant/surface modification/titanate coupl-ing agent分类
化学化工引用本文复制引用
王艳飞,郭尧,张艳维,宋海香,牛永生,张红松..钛酸酯偶联剂表面改性纳米氢氧化铝阻燃剂的工艺[J].表面技术,2017,46(4):217-221,5.基金项目
河南省教育厅科学技术研究重点项目(13B430009) Supported by the Key Project of Science and Technology of Education Office of Henan Province (13B430009) （13B430009）
