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Magnesian porous heat insulating material and preparation method thereof
The invention belongs to the technical field of preparation of heat insulating materials and particularly relates to a magnesian porous heat insulating material and a preparation method thereof. The magnesian porous heat insulating material is prepared from magnesite flotation tailings, fused magnesite, a foaming agent, a foam stabilizer, a dispersant, a water reducer, a binder, an additive and distilled water which are taken as raw materials. The preparation method comprises the following steps: mulling and foaming the raw materials; and then rapidly molding by casting, drying and sintering. According to the magnesian porous heat insulating material and the preparation method thereof, the required raw materials are low in price, and the technical process is simple; during a process of pre-forming foam suspension, the foaming agent and foam stabilizer are selected to be compounded for use, so that foams in a slurry are uniformly distributed and can exist stably, and the dimensions and sizes of pores are controllable and can achieve a micrometer level and even a nanometer level.
Magnesian porous heat insulating material and preparation method thereof
The invention belongs to the technical field of preparation of heat insulating materials and particularly relates to a magnesian porous heat insulating material and a preparation method thereof. The magnesian porous heat insulating material is prepared from magnesite flotation tailings, fused magnesite, a foaming agent, a foam stabilizer, a dispersant, a water reducer, a binder, an additive and distilled water which are taken as raw materials. The preparation method comprises the following steps: mulling and foaming the raw materials; and then rapidly molding by casting, drying and sintering. According to the magnesian porous heat insulating material and the preparation method thereof, the required raw materials are low in price, and the technical process is simple; during a process of pre-forming foam suspension, the foaming agent and foam stabilizer are selected to be compounded for use, so that foams in a slurry are uniformly distributed and can exist stably, and the dimensions and sizes of pores are controllable and can achieve a micrometer level and even a nanometer level.
Magnesian porous heat insulating material and preparation method thereof
WANG HONGJIN (author) / LUO XUDONG (author) / LI MEITING (author)
2015-09-16
Patent
Electronic Resource
English
IPC:
C04B
Kalk
,
LIME
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