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A platform for research: civil engineering, architecture and urbanism
Preparation method of durable composite waterproof material for concrete
The invention relates to a preparation method of a durable composite waterproof material for concrete, and belongs to the technical field of waterproof materials. In the preparation method, emulsifiedparaffin is used as a matrix raw material with addition of silane emulsion, thus preparing the durable composite waterproof material for concrete. The paraffin emulsion is demulsified to generate a multinuclear aluminum complex-paraffin complex, and the multinuclear aluminum complex-paraffin complex is deposited to the surface of the concrete and is directionally and tightly arranged on an interface; therefore, the strength of the interface film is improved, and the waterproof effect and the durability of the waterproof material can be effectively improved; in addition, the silane emulsion has relatively low surface energy, so that when the silane emulsion acts on the surface of concrete, the silane emulsion can be rapidly spread on the surface of the concrete and permeate into the concrete, and the hydrophilic groups in the silane emulsion react with hydroxyl groups on the surface of the concrete and in pores to generate-Si-R groups, the hydrophobic groups -R are distributed on the surface of the concrete, the surface energy of the concrete is reduced, and therefore, the effect of preventing water invasion is achieved.
本发明涉及一种混凝土用耐久性复合防水材料的制备方法，属于防水材料技术领域。本发明以乳化石蜡为基体原料，并添加硅烷乳液，制备一种混凝土用耐久性复合防水材料，石蜡乳液破乳生成多核铝络合物‑石蜡复合体沉淀到混凝土表面，在界面上定向紧密排列，使界面膜的强度增加，可以有效提高防水材料的防水效果和耐久性，硅烷乳液具有较低的表面能，当其作用于混凝土表面后，能够迅速的在混凝土表面铺展，渗透进混凝土内部，硅烷乳液中的亲水基与混凝土表面及孔隙中的羟基反应生成‑Si‑R基，疏水基‑R则分布在混凝土表面，降低混凝土的表面能，从而起到阻止水分侵入的作用。
Preparation method of durable composite waterproof material for concrete
The invention relates to a preparation method of a durable composite waterproof material for concrete, and belongs to the technical field of waterproof materials. In the preparation method, emulsifiedparaffin is used as a matrix raw material with addition of silane emulsion, thus preparing the durable composite waterproof material for concrete. The paraffin emulsion is demulsified to generate a multinuclear aluminum complex-paraffin complex, and the multinuclear aluminum complex-paraffin complex is deposited to the surface of the concrete and is directionally and tightly arranged on an interface; therefore, the strength of the interface film is improved, and the waterproof effect and the durability of the waterproof material can be effectively improved; in addition, the silane emulsion has relatively low surface energy, so that when the silane emulsion acts on the surface of concrete, the silane emulsion can be rapidly spread on the surface of the concrete and permeate into the concrete, and the hydrophilic groups in the silane emulsion react with hydroxyl groups on the surface of the concrete and in pores to generate-Si-R groups, the hydrophobic groups -R are distributed on the surface of the concrete, the surface energy of the concrete is reduced, and therefore, the effect of preventing water invasion is achieved.
本发明涉及一种混凝土用耐久性复合防水材料的制备方法，属于防水材料技术领域。本发明以乳化石蜡为基体原料，并添加硅烷乳液，制备一种混凝土用耐久性复合防水材料，石蜡乳液破乳生成多核铝络合物‑石蜡复合体沉淀到混凝土表面，在界面上定向紧密排列，使界面膜的强度增加，可以有效提高防水材料的防水效果和耐久性，硅烷乳液具有较低的表面能，当其作用于混凝土表面后，能够迅速的在混凝土表面铺展，渗透进混凝土内部，硅烷乳液中的亲水基与混凝土表面及孔隙中的羟基反应生成‑Si‑R基，疏水基‑R则分布在混凝土表面，降低混凝土的表面能，从而起到阻止水分侵入的作用。
Preparation method of durable composite waterproof material for concrete
一种混凝土用耐久性复合防水材料的制备方法
ZHONG GUOHANG (author) / ZHOU JIANHUA (author) / YANG HAIFENG (author) / GU XIAOFENG (author) / HE JIA (author)
2020-10-02
Patent
Electronic Resource
Chinese
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