Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
The invention relates to a building waterproof material, in particular to a cement-based capillary crystalline waterproof coating and a preparation method thereof. The cement-based capillary crystalline waterproof coating comprises powder, slurry and water, wherein the mass ratio of the powder to the slurry to the water is 1:(0.4-0.6):(0.6-0.7); the powder comprises the following components in parts by weight: 40-60 parts of cement, 20-30 parts of quartz sand and 5-8 parts of silane coupling agent modified calcium aluminate; the slurry is prepared from the following raw materials in parts by weight: 15-25 parts of vinyl acetate-ethylene copolymer emulsion, 10-20 parts of cross-linked flexible waterproof silicone rubber emulsion, 3-5 parts of methyl silicate, 3-5 parts of hydroxypropyl methyl cellulose, 5-10 parts of polyvinyl alcohol, 10-15 parts of deionized water and 0.2-0.4 part of auxiliaries; the viscosity of the vinyl acetate-ethylene copolymer emulsion is 1300-2000 mPa.s at the temperature of 25 DEG C; and the alcoholysis degree of the polyvinyl alcohol is 94-98 mol%. The cement-based capillary crystalline waterproof coating provided by the invention has excellent impermeability and waterproof performance, and can obviously improve the problem that the waterproof effect is not lasting in an environment with large temperature change.
本申请涉及建筑防水材料，具体涉及一种水泥基渗透结晶防水涂料及其制备方法。水泥基渗透结晶防水涂料包括粉料、浆料和水，所述粉料、浆料和水的质量比为1:(0.4‑0.6):(0.6‑0.7)；按重量份计，所述粉料包括水泥40‑60份、石英砂20‑30份、硅烷偶联剂改性的铝酸钙5‑8份；所述浆料由如下重量份的原料制成：醋酸乙烯酯‑乙烯共聚物乳液15‑25份、交联型柔性防水硅橡胶乳液10‑20份、甲基硅酸盐3‑5份、羟丙基甲基纤维素3‑5份、聚乙烯醇5‑10份、去离子水10‑15份、助剂0.2‑0.4份；所述醋酸乙烯酯‑乙烯共聚物乳液在25℃下的粘度为1300‑2000mPa.s；所述聚乙烯醇的醇解度为94‑98mol%。本申请提供的水泥基渗透结晶防水涂料具有优异的抗渗和防水性能，可以明显改善温度变化大的环境下防水效果不持久的问题。
The invention relates to a building waterproof material, in particular to a cement-based capillary crystalline waterproof coating and a preparation method thereof. The cement-based capillary crystalline waterproof coating comprises powder, slurry and water, wherein the mass ratio of the powder to the slurry to the water is 1:(0.4-0.6):(0.6-0.7); the powder comprises the following components in parts by weight: 40-60 parts of cement, 20-30 parts of quartz sand and 5-8 parts of silane coupling agent modified calcium aluminate; the slurry is prepared from the following raw materials in parts by weight: 15-25 parts of vinyl acetate-ethylene copolymer emulsion, 10-20 parts of cross-linked flexible waterproof silicone rubber emulsion, 3-5 parts of methyl silicate, 3-5 parts of hydroxypropyl methyl cellulose, 5-10 parts of polyvinyl alcohol, 10-15 parts of deionized water and 0.2-0.4 part of auxiliaries; the viscosity of the vinyl acetate-ethylene copolymer emulsion is 1300-2000 mPa.s at the temperature of 25 DEG C; and the alcoholysis degree of the polyvinyl alcohol is 94-98 mol%. The cement-based capillary crystalline waterproof coating provided by the invention has excellent impermeability and waterproof performance, and can obviously improve the problem that the waterproof effect is not lasting in an environment with large temperature change.
本申请涉及建筑防水材料，具体涉及一种水泥基渗透结晶防水涂料及其制备方法。水泥基渗透结晶防水涂料包括粉料、浆料和水，所述粉料、浆料和水的质量比为1:(0.4‑0.6):(0.6‑0.7)；按重量份计，所述粉料包括水泥40‑60份、石英砂20‑30份、硅烷偶联剂改性的铝酸钙5‑8份；所述浆料由如下重量份的原料制成：醋酸乙烯酯‑乙烯共聚物乳液15‑25份、交联型柔性防水硅橡胶乳液10‑20份、甲基硅酸盐3‑5份、羟丙基甲基纤维素3‑5份、聚乙烯醇5‑10份、去离子水10‑15份、助剂0.2‑0.4份；所述醋酸乙烯酯‑乙烯共聚物乳液在25℃下的粘度为1300‑2000mPa.s；所述聚乙烯醇的醇解度为94‑98mol%。本申请提供的水泥基渗透结晶防水涂料具有优异的抗渗和防水性能，可以明显改善温度变化大的环境下防水效果不持久的问题。
Cement-based capillary crystalline waterproof coating and preparation method thereof
一种水泥基渗透结晶防水涂料及其制备方法
ZHENG DAN (Autor:in)
30.04.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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