摘要
油品中的微量水分是降低油品质量,威胁发动机安全寿命的主要因素。为了制备优良的油水分离滤纸,本研究首先采用半连续乳液聚合法合成改性苯丙乳液,研究了乳化剂用量及比例、引发剂用量等对乳液稳定性的影响。结果显示,复合乳化剂用量为0.8-1.0 wt%,引发剂用量为0.8 wt%,交联单体用量为3 wt%,反应温度为80℃时,制备的改性苯丙乳液具有良好的稳定性,乳液粒径分布均匀。在上胶量为20±0.5 wt%时,此乳液浸渍的滤纸耐破度为304 kPa,拉伸强度为4.18 kN.m^(-1),耐水时间为24.0 h。水滴在浸渍滤纸表面上的接触角为110.2°,而煤油的接触角为25.6°。本研究为改性苯丙乳液在发动机滤纸上的应用提供了基础数据。
Water is the main pollutant leading to the decrease of the fuel quality and a direct threat to the safe operation of vehicle engines.The accuracy and efficiency of oil-water separation depends on the performance of auto filters.In order to prepare excellent oil-water separation filter paper,modified styrene-acrylic emulsion was synthesized in this work,and the effect of monomer,usage and ratio of emulsifier,initiator usage,etc,on the stability of the emulsion was discussed.Under the optimal reaction conditions,the styrene-acrylic emulsion had favorable stability and uniform emulsion particles.When the glue amount was 20±0.5 wt%,the bursting strength of the filter paper impregnated with the emulsion was 304 kPa,with the tensile strength of 4.18 kN·m-1.In addition,the filter paper had excellent water resistance,which was 24.0 h. The contact angle of water droplets on the filter paper surface is 110.2o,and that of oil droplet is 25.6o.This study could provide basic data for the application of styrene-acrylic emulsion in the engine filter.
作者
周敏茹
姚培
左静
ZHOU Min-ru;YAO Pei;ZUO Jing(Changzhou Vocational Institute of Engineering,Laboratory training department,Jiangsu Changzhou 213164,China;Changzhou Vocational Institute of Engineering,School of chemical and materials engineering,Jiangsu Changzhou,213164,China)
出处
《化学研究与应用》
CAS
CSCD
北大核心
2019年第3期397-403,共7页
Chemical Research and Application
基金
江苏高校品牌建设工程资助项目(PPZY2015B178)资助
2016江苏省青蓝工程创新团队项目资助
关键词
改性苯丙乳液
稳定性
浸渍滤纸
机械性能
modified styrene-acrylic emulsion
stability
impregnated filter paper
mechanical performance
