增塑剂对硅酮石材密封胶性能的影响  

Influence of Plasticizers on Performance of Silicone Sealant

作　　者：李雪华 徐文远 聂时君 LI Xuehua;XU Wenyuan;NIE Shijun(Guangzhou Jointas Chemical Engineering Co.,Ltd.,Guangdong Guangzhou 510520,China)

机构地区：[1]广州集泰化工股份有限公司,广东广州510665

出　　处：《广州化工》2024年第22期110-112,共3页GuangZhou Chemical Industry

摘　　要：研究了增塑剂对硅酮石材密封胶性能的影响,从渗入污染测试条件、增塑剂含量、增塑剂黏度、增塑剂种类四个方面分析了硅酮石材密封胶渗入污染性、力学性能及耐水粘接性的影响。实验结果显示:高温处理测试可以加快观察石材渗入污染;增塑剂含量增加密封胶弹性变好,石材渗入污染加重,石材界面的耐水粘接性明显变差,增塑剂二甲基硅油的最佳加入量为5%;增塑剂黏度越大,增塑效果越好,石材污染越严重,对花岗石的耐水粘接性变差;含有部分活性官能团的MDT硅油有利于改进石材胶的渗入污染且具有一定的增塑效果和良好的耐水粘接性。The influence of plasticizers on the performance of silicone sealant was studied,and the effects of infiltration contamination testing conditions,plasticizer content,plasticizer viscosity and plasticizer types on the infiltration contamination,mechanical properties and water resistance of silicone sealant were analyzed.The experimental results showed that high-temperature treatment testing can accelerate the observation of stone infiltration pollution.The increase in plasticizer content improved the elasticity of the sealant,increased the infiltration of stone pollution,and significantly reduced the water resistance and adhesion of the stone interface.The optimal addition amount of plasticizer dimethyl silicone oil was 5%.The higher the viscosity of the plasticizer,the better the plasticizing effect,the more severe the stone pollution,and the poorer the water resistance and adhesion to granite.MDT silicone oil containing some active functional groups was beneficial for improving the infiltration and pollution of stone adhesive,and had a certain plasticizing effect and good water resistance adhesion.

关 键 词：石材污染 增塑剂 硅酮密封胶 

分 类 号：TQ437[化学工程]