摘要
采用机械力化学法对垃圾焚烧飞灰进行表面改性,得出优化工艺参数为:硬脂酸钠作为改性剂,改性剂用量2%(wt),球磨机转速200 r×min^(-1),改性时间150 min,球料比3:1。在此参数下,垃圾焚烧飞灰吸油值为28.2 g×(100 g)^(-1),接触角为110.5°,且由傅里叶红外光谱分析可得改性剂与粉体表面存在化学反应。对PP/垃圾焚烧飞灰复合材料进行测试表明50%飞灰添加量的复合材料Cr(Ⅵ)离子浸出浓度为0.05μg×mL^(-1),且PP/改性飞灰复合材料的拉伸性能、冲击强度及断裂伸长率均优于PP/未改性飞灰复合材料。
Surface modification of MSWI fly ash was studied by a mechanical force chemical method, and the optimized parameters were obtained： sodium stearate as a modifier with dosage of 2%（wt）, ball mill speed = 200 r×min^（-1）, modification time = 150 min and ball material ratio = 3：1. Oil absorption capacity of the modified MSWI fly ash is 28.2 g×（100 g）^（-1） and the contact angle is 110.5 degrees under such conditions. The chemical reaction between the modifier and fly ash was observed by FT-IR analysis. The PP/fly ash composite with fly ash percentage of 50% shows Cr（VI） leaching concentration of 0.05 μg×mL^（-1）. The tensile strength, impact strength and elongation of the modified PP/fly ash composite are better than that of the PP/unmodified fly ash composites.
作者
徐林智
张俭
孙青
徐利强
严俊
盛嘉伟
XU Lin-zhi;ZHANG Jian;SUN Qing;XU Li-qiang;YAN Jun;SHENG Jia-wei(College of Materials Science and Engineering,Zhejiang University of Technology,Hangzhou 310014,China;Wenzhou Institute of Science and Technology,Zhejiang University of Technology,Wenzhou 325000,China)
出处
《高校化学工程学报》
EI
CAS
CSCD
北大核心
2018年第4期969-974,共6页
Journal of Chemical Engineering of Chinese Universities
基金
浙江省自然科学基金(LY18E020014
LY18E020015)
关键词
垃圾焚烧飞灰
表面改性
复合
聚丙烯
MSWI fly ash
surface modification
composites
polypropylene
作者简介
徐林智（1993-），男，浙江台州人，浙江工业大学硕士生。;通讯联系人：盛嘉伟，E-mail：jw-sheng@zjut.edu.cn
