摘要
采用水热法在剥离蒙脱土(e-MMT)表面原位生长层状双氢氧化物(LDH),获得了复合材料LDH@e-MMT,将其引入到花椒籽油(ZBMSO)中制得了LDH@e-MMT/改性花椒籽油(LDH@e-MMT/MZBMSO),通过XRD、FTIR、TEM对LDH@e-MMT/MZBMSO进行了表征,并将LDH@e-MMT/MZBMSO应用于皮革加脂工艺。结果表明,LDH@e-MMT呈花状形貌,均匀分散在MZBMSO中。当LDH@e-MMT含量为ZBMSO质量的12%时,制备的LDH@e-MMT/MZBMSO-3加脂坯革具有一定的阻燃抑烟性。与MZBMSO加脂坯革相比,LDH@eMMT/MZBMSO-3加脂坯革极限氧指数由22.8%提升至28.3%,有焰燃烧时间由87s减少到43s,峰值热释放速率降低了44.6%,热释放总量降低了73.3%,峰值产烟速率降低了68.0%。
Layered double hydroxide(LDH)was grown in situ on the surface of exfoliated montmorillonite(e-MMT)by hydrothermal method and composite LDH@e-MMT was obtained.LDH@e-MMT was introduced into zanthoxylum bungeanum seed oil(ZBMSO)to prepare LDH@e-MMT/modified zanthoxylum bungeanum seed oil(LDH@e-MMT/MZBMSO).LDH@e-MMT/MZBMSO was characterized by XRD,FTIR,and TEM.Then,LDH@e-MMT/MZBMSO was used in the leather fatliquoring process.The results showed that LDH@e-MMT had a flower-like morphology and uniformly dispersed in MZBMSO.When LDH@e-MMT dosage was 12%of ZBMSO mass,crust heather treated with LDH@e-MMT/MZBMSO-3had certain flame retardancy and smoke suppression.Compared with those of MZBMSO treated crust leather,the limited oxygen index of LDH@e-MMT/MZBMSO-3 treated crust leather increased from 22.8%to 28.3%,the flame burning time reduced from 87 s to 43 s,the peak heat release rate reduced by 44.6%,the total heat release reduced by 73.3%,and the peak smoke production rate reduced by 68.0%.
作者
吕斌
寇梦楠
高党鸽
LYU Bin;KOU Mengnan;GAO Dangge(College of Bioresources Chemical and Materials Engineering,Shaanxi University of Science&Technology,Xi'an 710021,Shaanxi,China;Xiran Key Laboratory of Green Chemicals and Functional Materials,Xi'an 710021,Shaanxi,China;National Demonstration Center for Experimental Light Chemistry Engineering Education,Shaanxi University of Science&Technology,Xi'an 710021,Shaanxi,China)
出处
《精细化工》
EI
CAS
CSCD
北大核心
2022年第4期790-797,共8页
Fine Chemicals
基金
国家自然科学基金重点项目(21838007)
陕西省教育厅服务地方专项项目(20JC006)
陕西省重点研发项目(2020GY-258)
陕西省创新能力支撑计划资助(2021TD-16)。
关键词
花状LDH@e-MMT
原位生长
加脂
阻燃性
抑烟性
皮革化学品
flower-like LDH@e-MMT
in situ growth
fatliquoring
flame retardancy
smoke suppression
leather chemicals
