普通硅酸盐水泥对隔声涂料干燥时间和隔声性能影响的研究  

Study on the Effect of Ordinary Portland Cement on Drying Time and Sound Insulation Performance of Soundproof Coatings

作　　者：王华权 刘晓丽 赵有强 刘广明 WANG Huaquan;LIU Xiaoli;ZHAO Youqiang;LIU Guangming(China Resources Cement Technology R&D CoLtdGuangzhou 510000,China)

机构地区：[1]华润水泥技术研发有限公司,广州510000

出　　处：《涂料工业》2024年第6期65-70,共6页Paint & Coatings Industry

摘　　要：为缩短水性隔声涂料的干燥时间,将普通硅酸盐水泥作为填料掺入隔声涂料中,采用自研的简易版撞击声检测装置,探究了普通硅酸盐水泥添加量对隔声涂料撞击隔声性能的影响,并通过扫描电子显微镜(SEM),分析了硅酸盐水泥对隔声涂料微观形貌的影响。结果表明:隔声涂料中加入一定量的硅酸盐水泥,水泥在涂料中发生水化反应,生成水化碳酸钙凝胶等产物,对涂料的干燥效率和隔声性能起到提升作用。硅酸盐水泥添加量达到6%,隔声涂料的干燥时间可以缩短至48 h以内;硅酸盐水泥添加量达到4%,隔声涂料的撞击声隔声性能提升了75%。隔声涂料(4%硅酸盐水泥添加量)现场施工,48 h内完全干燥,楼板计权标准化撞击声压级为63 dB,达到国家二星级绿色建筑标准。In order to shorten the drying time of waterborne soundproof coatings,ordinary Portland cement was added as a filler into the soundproof coatings.The effect of addition amount of ordinary Portland cement on the impact insulation performance of sound insulating coatings was studied by using a simple self-developed impact sound detection device.Through scanning electron microscopy(SEM),the effect of cement on the microstructure of the soundproof coatings was analyzed.The results indicated that the addition of a certain amount of ordinary Portland cement in the soundproof coatings could trigger a hydration reaction,resulting in the formation of products such as hydrated calcium carbonate gel,which could improve the drying efficiency and soundproofing performance of the waterborne soundproof coatings.With the addition of 6%ordinary Portland cement,the drying time of the soundproof coatings could be shortened to less than 48 hours.With the addition of 4%ordinary Portland cement,the impact sound insulation performance of the soundproof coatings was improved by 75%.The on-site construction of the soundproof coatings(with 4%ordinary Portland cement addition)completely dried within 48 hours,The standardized impact sound pressure level of the floor slab was 63 dB,which meet the national two-star green building standard.

关 键 词：隔声涂料 硅酸盐水泥 干燥时间 隔声性能 

分 类 号：TQ635.5[化学工程—精细化工]