Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
The invention discloses a coal gangue hydrophobic environment-friendly baking-free brick and a preparation process thereof, and belongs to the field of environment-friendly constructions.The baking-free brick is subjected to hydrophobic treatment through an organic silicon nanometer material, and the baking-free brick is prepared from, by mass, 40%-70% of coal gangue, 12%-42% of natural sand, 5.14% of coal ash and 12.86% of cement. Polymer organic silicon in the nano material is combined with SI-O (OH) groups on the surface of a coal gangue tailing base through hydrogen bonds or chemical bonds to form a layer film structure, alkyl groups in the structure are directionally arranged, so that a contact angle with water is increased, a hydrophobic characteristic is generated, the layer film structure can be uniformly distributed on micropore walls of tailing particles, and the hydrophobic property of the tailing particles is improved. The hydrophobic property of the layer membrane structure can prevent water from entering the micropores in a liquid form when the layer membrane structure encounters water, and air and gaseous water can be discharged through the capillary micropores of the layer membrane structure, so that the purpose of water insulation is achieved.
本发明公开了一种煤矸石疏水环保免烧砖及其制备工艺，属于环保建筑领域，使用有机硅纳米材料对所述免烧砖进行疏水处理，免烧砖按质量分数计由以下原料制成：煤矸石40％～70％、天然砂12％～42％、粉煤灰5.14％、水泥12.86％。本发明纳米材料中的高分子有机硅与煤矸石尾矿基表面SI‑O(OH)基以氢键或化学键结合形成了层膜结构，由于该结构中的烷基定向排列，增大了与水的接触角，所以产生疏水特性，由于该层膜结构能够均匀地分布在尾矿颗粒的微孔壁，并不封闭微孔通道，因而当该层膜结构遇到水时，其疏水性能可以阻挡水以液态形式进入微孔，而空气和气态的水可通过层膜结构的毛细微孔排出，进而起到隔水的目的。
The invention discloses a coal gangue hydrophobic environment-friendly baking-free brick and a preparation process thereof, and belongs to the field of environment-friendly constructions.The baking-free brick is subjected to hydrophobic treatment through an organic silicon nanometer material, and the baking-free brick is prepared from, by mass, 40%-70% of coal gangue, 12%-42% of natural sand, 5.14% of coal ash and 12.86% of cement. Polymer organic silicon in the nano material is combined with SI-O (OH) groups on the surface of a coal gangue tailing base through hydrogen bonds or chemical bonds to form a layer film structure, alkyl groups in the structure are directionally arranged, so that a contact angle with water is increased, a hydrophobic characteristic is generated, the layer film structure can be uniformly distributed on micropore walls of tailing particles, and the hydrophobic property of the tailing particles is improved. The hydrophobic property of the layer membrane structure can prevent water from entering the micropores in a liquid form when the layer membrane structure encounters water, and air and gaseous water can be discharged through the capillary micropores of the layer membrane structure, so that the purpose of water insulation is achieved.
本发明公开了一种煤矸石疏水环保免烧砖及其制备工艺，属于环保建筑领域，使用有机硅纳米材料对所述免烧砖进行疏水处理，免烧砖按质量分数计由以下原料制成：煤矸石40％～70％、天然砂12％～42％、粉煤灰5.14％、水泥12.86％。本发明纳米材料中的高分子有机硅与煤矸石尾矿基表面SI‑O(OH)基以氢键或化学键结合形成了层膜结构，由于该结构中的烷基定向排列，增大了与水的接触角，所以产生疏水特性，由于该层膜结构能够均匀地分布在尾矿颗粒的微孔壁，并不封闭微孔通道，因而当该层膜结构遇到水时，其疏水性能可以阻挡水以液态形式进入微孔，而空气和气态的水可通过层膜结构的毛细微孔排出，进而起到隔水的目的。
Gangue hydrophobic environment-friendly baking-free brick and preparation process thereof
一种煤矸石疏水环保免烧砖及其制备工艺
15.04.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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