纳米二氧化硅对水性涂料的黏度与漆膜性能影响研究

Effect of Nano Silica on Viscosity and Film Properties of Waterborne Coatings

随着生活水平的提高,人们对健康环保的要求逐渐提高。凭借甲醛与挥发性有机化合物(VOC)排放量低的优势,水性涂料逐渐替代传统油漆,但仍需保证产品质量稳定性。其中,黏度是一个非常重要的参考指标。为了满足消费者对水性涂料的抗菌、负离子等多种功能的需求,将纳米二氧化硅作为水性涂料增稠剂,通过控制加入量来调节水性涂料的黏度、对比率、光泽度和水接触角。实验结果表明,添加纳米二氧化硅不仅不会破坏水性涂料的原有体系,而且能够达到较好的增稠效果。

People′s demand for health and environmental protection is increasing with the rise of living standards.Relying on the advantages of low formaldehyde and VOC emissions,waterborne coatings still need to ensure quality stability in the process of replacing traditional paints.Among them,viscosity parameter is a very important reference.In order to meet the needs of consumers for antibacterial,anion and other functions of waterborne coatings,nano silica is used as thickener of waterborne coatings,and the viscosity,contrast ratio,gloss and water contact angle of waterborne coatings are adjusted by controlling the dosage.The addition of nano silica will not damage the original system of waterborne coatings,but also achieve good thickening effect.