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A platform for research: civil engineering, architecture and urbanism
Phosphorus-magnesium cementing material/polymer composite coating and construction method thereof
The invention discloses a phosphorus-magnesium cementing material/polymer composite coating which sequentially comprises a bottom coating formed by a phosphorus-magnesium cementing material and a polymer emulsion, a phosphorus-magnesium cementing material middle coating and a polymer emulsion-coated closed surface coating from bottom to top, magnesium ions in the middle coating and phosphate ions in the bottom coating are neutralized to form a struvite hydrated crystal network structure; in order to improve permeation bonding between the protective coating and concrete, a bonding interface is designed into a polymer-phosphorus magnesium cement-polymer layered structure system, phosphate in the bottom coating can form a stable calcium phosphate compound with calcium ions in alkaline concrete, and capillary pores in the concrete are blocked; polymer latex particles also have large penetration depth, and have sound bonding and hydrophobic functions after film formation; magnesium ions in the middle coating can be neutralized with residual phosphate ions in the bottom coating to form a struvite hydrated crystal network structure, the struvite hydrated crystal network structure and the bottom coating form an integral structure, a bonding interface between the struvite hydrated crystal network structure and the bottom coating is strengthened, and the interface has certain deformation coordination ability; and the surface coating further improves the overall waterproof performance of the coating through permeation of the middle coating.
本发明公开了磷镁胶凝材料/聚合物复合涂层，所述涂层从下至上依次包括磷镁胶凝材料和聚合物乳液形成的底涂层、磷镁胶凝材料中涂层和覆聚合物乳液封闭面涂层，中涂层中的镁离子与底涂层中的磷酸根离子中和形成鸟粪石水化晶体网络结构；为提高防护涂层与混凝土之间的渗透结合，将结合界面设计为聚合物‑磷镁水泥‑聚合物层状结构体系，底涂层中的磷酸盐能够与碱性混凝土中的钙离子形成稳定的磷酸钙化合物，堵塞混凝土中的毛细孔隙；聚合物乳胶粒也有较大渗透深度，成膜后具备良好的粘结与疏水功能；中涂层中的镁离子能够与底涂层中剩余的磷酸根离子中和形成鸟粪石水化晶体网络结构，并与底涂层形成整体结构，强化二者之间的结合界面，并使界面具备一定的变形协调能力；面涂层通过对中涂层的渗透，进一步提高涂层整体的其防水性能。
Phosphorus-magnesium cementing material/polymer composite coating and construction method thereof
The invention discloses a phosphorus-magnesium cementing material/polymer composite coating which sequentially comprises a bottom coating formed by a phosphorus-magnesium cementing material and a polymer emulsion, a phosphorus-magnesium cementing material middle coating and a polymer emulsion-coated closed surface coating from bottom to top, magnesium ions in the middle coating and phosphate ions in the bottom coating are neutralized to form a struvite hydrated crystal network structure; in order to improve permeation bonding between the protective coating and concrete, a bonding interface is designed into a polymer-phosphorus magnesium cement-polymer layered structure system, phosphate in the bottom coating can form a stable calcium phosphate compound with calcium ions in alkaline concrete, and capillary pores in the concrete are blocked; polymer latex particles also have large penetration depth, and have sound bonding and hydrophobic functions after film formation; magnesium ions in the middle coating can be neutralized with residual phosphate ions in the bottom coating to form a struvite hydrated crystal network structure, the struvite hydrated crystal network structure and the bottom coating form an integral structure, a bonding interface between the struvite hydrated crystal network structure and the bottom coating is strengthened, and the interface has certain deformation coordination ability; and the surface coating further improves the overall waterproof performance of the coating through permeation of the middle coating.
本发明公开了磷镁胶凝材料/聚合物复合涂层，所述涂层从下至上依次包括磷镁胶凝材料和聚合物乳液形成的底涂层、磷镁胶凝材料中涂层和覆聚合物乳液封闭面涂层，中涂层中的镁离子与底涂层中的磷酸根离子中和形成鸟粪石水化晶体网络结构；为提高防护涂层与混凝土之间的渗透结合，将结合界面设计为聚合物‑磷镁水泥‑聚合物层状结构体系，底涂层中的磷酸盐能够与碱性混凝土中的钙离子形成稳定的磷酸钙化合物，堵塞混凝土中的毛细孔隙；聚合物乳胶粒也有较大渗透深度，成膜后具备良好的粘结与疏水功能；中涂层中的镁离子能够与底涂层中剩余的磷酸根离子中和形成鸟粪石水化晶体网络结构，并与底涂层形成整体结构，强化二者之间的结合界面，并使界面具备一定的变形协调能力；面涂层通过对中涂层的渗透，进一步提高涂层整体的其防水性能。
Phosphorus-magnesium cementing material/polymer composite coating and construction method thereof
一种磷镁胶凝材料/聚合物复合涂层及其施工方法
HE XIAOBING (author) / XIE XINSHENG (author) / YANG SHIYAO (author) / ZHANG ZHONGWEI (author) / WANG KAI (author) / ZHANG PENG (author) / ZHANG DONGMING (author) / TIAN JIYE (author) / LIU YUXING (author) / HE FENGQIAN (author)
2022-01-07
Patent
Electronic Resource
Chinese
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