Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Organic silicon slow-release powder water repellent and preparation method thereof
The invention belongs to the technical field of ocean building engineering, and discloses an organic silicon slow-release type powder water repellent and a preparation method thereof. The organic silicon slow-release powder water repellent is mainly composed of the following components in percentage by mass: 45 to 55% of zeolite, 40 to 50% of organosilane, 3 to 6% of alcohol sealant, and 0.5 to 3%of surfactant. The invention also discloses the preparation method of the water repellent. The organic silicon release rate of the organic silicon slow-release powder water repellent is controllable,the organic silicon retention rate in 60 minutes is 45-60%, the hydrophobic modification effect on Portland cement or composite Portland cement is good, and the corrosion resistance of cement is good, for example, the contact angle of modified cement paste is 100-125 degrees, and the diffusion coefficient of chloride ions at the age of 28 days is 0.1-0.3 * 10 < -12 > m < 2 >/s.
本发明属于海洋建筑工程的技术领域，公开了一种有机硅缓释型粉末憎水剂及其制备方法。所述有机硅缓释型粉末憎水剂主要由以下按质量百分数计的组分组成：沸石45～55％，有机硅烷40～50％，醇类密封剂3～6％，表面活性剂0.5～3％。本发明还公开了憎水剂的制备方法。本发明的有机硅缓释型粉末憎水剂的有机硅释放速率可控，60分钟有机硅存留率45～60％，对硅酸盐水泥或复合硅酸盐水泥憎水改性效果好，水泥的抗蚀性能好，如：改性水泥浆体的接触角为100～125°，28天龄期氯离子扩散系数0.1～0.3×10‑12m2/s。
Organic silicon slow-release powder water repellent and preparation method thereof
The invention belongs to the technical field of ocean building engineering, and discloses an organic silicon slow-release type powder water repellent and a preparation method thereof. The organic silicon slow-release powder water repellent is mainly composed of the following components in percentage by mass: 45 to 55% of zeolite, 40 to 50% of organosilane, 3 to 6% of alcohol sealant, and 0.5 to 3%of surfactant. The invention also discloses the preparation method of the water repellent. The organic silicon release rate of the organic silicon slow-release powder water repellent is controllable,the organic silicon retention rate in 60 minutes is 45-60%, the hydrophobic modification effect on Portland cement or composite Portland cement is good, and the corrosion resistance of cement is good, for example, the contact angle of modified cement paste is 100-125 degrees, and the diffusion coefficient of chloride ions at the age of 28 days is 0.1-0.3 * 10 < -12 > m < 2 >/s.
本发明属于海洋建筑工程的技术领域，公开了一种有机硅缓释型粉末憎水剂及其制备方法。所述有机硅缓释型粉末憎水剂主要由以下按质量百分数计的组分组成：沸石45～55％，有机硅烷40～50％，醇类密封剂3～6％，表面活性剂0.5～3％。本发明还公开了憎水剂的制备方法。本发明的有机硅缓释型粉末憎水剂的有机硅释放速率可控，60分钟有机硅存留率45～60％，对硅酸盐水泥或复合硅酸盐水泥憎水改性效果好，水泥的抗蚀性能好，如：改性水泥浆体的接触角为100～125°，28天龄期氯离子扩散系数0.1～0.3×10‑12m2/s。
Organic silicon slow-release powder water repellent and preparation method thereof
一种有机硅缓释型粉末憎水剂及其制备方法
GUO YIQUN (Autor:in) / ZHANG TONGSHENG (Autor:in) / LI JIAHAO (Autor:in) / WEI JIANGXIONG (Autor:in) / YU QIJUN (Autor:in) / HAN YUDONG (Autor:in) / DING XIAOPING (Autor:in)
26.03.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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