A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Self-leveling heat-conducting cementing material as well as preparation method and application thereof
The invention belongs to the technical field of inorganic functional materials. The invention provides a self-leveling heat-conducting cementing material. The self-leveling heat-conducting cementing material comprises magnesium oxide, magnesium sulfate, a modifier, a crystallization aid, a network forming agent and water. Magnesium oxide and magnesium sulfate react in a solution to generate needle-shaped hydrated magnesium oxide-magnesium sulfate double salt, and gaps are filled with the needle-shaped double salt, so that the compactness of a system is improved, and heat conduction is more uniform. The crystallization auxiliary agent provides a crystal nucleus for the generation of the hydrated magnesium oxide-magnesium sulfate double salt on one hand, and is helpful for keeping the hydrated magnesium oxide-magnesium sulfate double salt in a whisker shape on the other hand. The network forming agent is composed of superfine powder with high heat conductivity coefficient, the powder is uniformly distributed in the heat-conducting cementing material to generate a thermal bridge network, and meanwhile, a cementing material hydration product grows directionally to form a high-speed heat-conducting channel. The water reducing agent and the defoaming agent can improve the dispersion uniformity of the network forming agent in a liquid phase in an alkaline liquid phase environment formed by magnesium hydroxide, and the heat conductivity coefficient of the heat conduction material is improved.
本发明属于无机功能材料技术领域。本发明提供了一种自流平导热胶凝材料，包含氧化镁、硫酸镁、改性剂、结晶助剂、网络形成剂和水。本发明利用氧化镁与硫酸镁在溶液中反应生成针状水合氧化镁‑硫酸镁复盐，针状复盐填充在空隙中，增加了体系致密性，使导热更均匀。结晶助剂一方面为水合氧化镁‑硫酸镁复盐的生成提供晶核，另一方面有助于使水合氧化镁‑硫酸镁复盐保持晶须状。网络形成剂为导热系数高的超细粉体组成，这些粉体均匀分布在导热胶凝材料中，生成热桥网络，同时使胶凝材料水化产物定向生长，形成高速导热通道。减水剂和消泡剂在氢氧化镁形成的碱性液相环境中，可以提高网络形成剂在液相中分散均匀性，提高导热材料的导热系数。
Self-leveling heat-conducting cementing material as well as preparation method and application thereof
The invention belongs to the technical field of inorganic functional materials. The invention provides a self-leveling heat-conducting cementing material. The self-leveling heat-conducting cementing material comprises magnesium oxide, magnesium sulfate, a modifier, a crystallization aid, a network forming agent and water. Magnesium oxide and magnesium sulfate react in a solution to generate needle-shaped hydrated magnesium oxide-magnesium sulfate double salt, and gaps are filled with the needle-shaped double salt, so that the compactness of a system is improved, and heat conduction is more uniform. The crystallization auxiliary agent provides a crystal nucleus for the generation of the hydrated magnesium oxide-magnesium sulfate double salt on one hand, and is helpful for keeping the hydrated magnesium oxide-magnesium sulfate double salt in a whisker shape on the other hand. The network forming agent is composed of superfine powder with high heat conductivity coefficient, the powder is uniformly distributed in the heat-conducting cementing material to generate a thermal bridge network, and meanwhile, a cementing material hydration product grows directionally to form a high-speed heat-conducting channel. The water reducing agent and the defoaming agent can improve the dispersion uniformity of the network forming agent in a liquid phase in an alkaline liquid phase environment formed by magnesium hydroxide, and the heat conductivity coefficient of the heat conduction material is improved.
本发明属于无机功能材料技术领域。本发明提供了一种自流平导热胶凝材料，包含氧化镁、硫酸镁、改性剂、结晶助剂、网络形成剂和水。本发明利用氧化镁与硫酸镁在溶液中反应生成针状水合氧化镁‑硫酸镁复盐，针状复盐填充在空隙中，增加了体系致密性，使导热更均匀。结晶助剂一方面为水合氧化镁‑硫酸镁复盐的生成提供晶核，另一方面有助于使水合氧化镁‑硫酸镁复盐保持晶须状。网络形成剂为导热系数高的超细粉体组成，这些粉体均匀分布在导热胶凝材料中，生成热桥网络，同时使胶凝材料水化产物定向生长，形成高速导热通道。减水剂和消泡剂在氢氧化镁形成的碱性液相环境中，可以提高网络形成剂在液相中分散均匀性，提高导热材料的导热系数。
Self-leveling heat-conducting cementing material as well as preparation method and application thereof
一种自流平导热胶凝材料及其制备方法和应用
HAN TAO (author) / JIN XIUZHI (author)
2022-08-12
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
Heat-conducting gypsum self-leveling mortar as well as preparation method and application thereof
| European Patent Office | 2020
| European Patent Office | 2020
| European Patent Office | 2020
| European Patent Office | 2022
| European Patent Office | 2022