矿产综合利用2025，Vol.46Issue(3)：26-32,7.DOI:10.12476/kczhly.202209060573
粉煤灰表面无机改性及填充尼龙6性能
Surface Inorganic Modification of Fly Ash and its Properties in Filling Nylon 6
摘要
Abstract
Nano magnesium hydroxide was coated on the surface of fly ash by non-uniform nucleation method to carry out inorganic modification.The influence of different magnesium hydroxide coating amount(mMg(OH)2/mfly ash)on the coating effect of composite powder was investigated.The structure,surface functional groups,morphology and stability of the composite powder were characterized by SEM,XRD,FTIR and TG.Nylon 6 composite was prepared by filling nylon 6 with composite powder.The mechanical properties,thermal deformation temperature,melt index and flame retardancy of the composite were tested.The results show when the coating content is 70％,the surface of fly ash is coated with nano magnesium hydroxide with regular morphology and uniform size,and the specific surface area of the composite powder increases from 1.72 m2/g to 56.62 m2/g.The mechanical properties and flame retardancy of nylon 6 composites are better than those of pure nylon 6.Fly ash-based composite powder can replace pure magnesium hydroxide to fill nylon 6,and solve the problem of poor compatibility and dispersion when fly ash and pure magnesium hydroxide are used as fillers alone.关键词
粉煤灰/氢氧化镁/尼龙6/阻燃性能/力学性能Key words
fly ash/magnesium hydroxide/Nylon 6/flame retardancy/mechanical properties分类
矿业与冶金引用本文复制引用
姚国鑫,王彩丽,王斌,秋颖,王志学,杨润全..粉煤灰表面无机改性及填充尼龙6性能[J].矿产综合利用,2025,46(3):26-32,7.基金项目
国家自然科学基金(51804214) （51804214）
