| WANG Yan-fei,GUO Yao,ZHANG Yan-wei,SONG Hai-xiang,NIU Yong-sheng,ZHANG Hong-song.Optimization of Titanate Coupling Agent Surface Modification of Nano-sized Aluminum Trihydroxide Flame Retardant[J],46(4):217-221 |
| Optimization of Titanate Coupling Agent Surface Modification of Nano-sized Aluminum Trihydroxide Flame Retardant |
| Received:October 10, 2016 Revised:April 20, 2017 |
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| DOI：10.16490/j.cnki.issn.1001-3660.2017.04.035 |
| KeyWord:nano-sized aluminum hydroxide orthogonal experiment flame retardant surface modification titanate coupling agent |
| Author | Institution |
| WANG Yan-fei |
School of Chemical and Environmental Engineering, Anyang Institute of Technology, Anyang , China |
| GUO Yao |
School of Chemical and Environmental Engineering, Anyang Institute of Technology, Anyang , China |
| ZHANG Yan-wei |
School of Chemical and Environmental Engineering, Anyang Institute of Technology, Anyang , China |
| SONG Hai-xiang |
School of Chemical and Environmental Engineering, Anyang Institute of Technology, Anyang , China |
| NIU Yong-sheng |
School of Chemical and Environmental Engineering, Anyang Institute of Technology, Anyang , China |
| ZHANG Hong-song |
School of Mechanical Engineering, Henan Institute of Engineering, Zhengzhou , China |
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| 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 modification of Nano-ATH was carried out with titanate coupling agent UP-311. Effects of coupling agent usage, modification temperature and modification time on particle size of Nano-ATH were studied in orthogonal experiment method. The modification effect on Nano-ATH prepared under optimal modification conditions was evaluated by such analytical means as infrared spectroscopy, 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 coupling agent UP-311 by virtue of chemical bond. Surface property of the Nano-ATH powder is changed obviously after modification, the hydrophile-oleophobic Nano-ATH turns into lipophilic-hydrophobic Nano-ATH, and the purpose of surface modification is achieved. |
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