Mullite light insulating brick and preparation method thereof

The invention discloses a thick-layer putty for heat insulation of a wall. The putty comprises the following components by mass parts: 5 to 8 parts of polymer powder, 20 to 30 parts of expansive cement, 20 to 30 parts of hollow ceramic bead, 10 to 15 parts of silica airgel particles, 10 to 15 parts of silicon powder, 10 to 15 parts of ash calcium, 0.2 to 0.5 parts of a water-retaining agent, 0.2 to 0.5 parts of a dispersant, 0.1 to 1 part of an antifoaming agent, 3 to 5 parts of reinforced fiber and 3 to 5 parts of an impermeability agent. The putty has advantages of level-A fire prevention, good insulation and energy-saving effect, strong environmental protection, simple construction, short construction cycle, strong adhesiveness, good impermeability, and strong flexible and anti-cracking capacity, and meanwhile, has effects of flexible building putty, and not only can meet energy-saving needs of current newly-built construction walls in China, but also is suitable for energy-saving reconstruction of existing buildings.

Thick-layer putty for heat insulation of wall

Aluminum silicate ceramic fiber surface coating capable of being used at temperature of 1600 DEG C

The invention relates to a wallboard material and a preparation method thereof, and particularly relates to vitrified foamed ceramic and a preparation method thereof, belonging to the technical field of materials. According to the vitrified foamed ceramic and the preparation method thereof, non-renewable resources are fully utilized when a high-performance light vitrified foamed ceramic with a volume weight of not more than 0.1g/cm is prepared by using basalt and shale as main raw materials; through adding an inorganic compound sintering additive mainly comprising ZnO, Cr2O3, and zirconium silicate or zircon sand and silicon carbide as main raw materials, a product has the characteristics of volume weight of not more than 0.1g/cm , heat conduction coefficient of not more than 0.05W/(m.k), normal temperature compressive strength of not less than 0.8MPa, normal temperature breaking strength of not less than 0.5MPa, fireproof grade of A grade, and excellent freeze-thaw resistance. The vitrified foamed ceramic has the advantages of comprehensively utilizing widespread poor raw materials, and simplifying a manufacturing procedure, and is more suitable for heat insulation of a building wallboard and heat insulation of thermal equipment and pipelines in industries such as power, petroleum, chemical engineering, smelting, traffics, light industry, and national defense industry, as well as heat (cold) insulation projects of a chimney inner wall and a kiln housing.

Ultra-light vitrified foamed ceramic and preparation method thereof

Calciclase light heat-insulating refractory material and preparation method thereof

The invention relates to an anorthite light-weight and heat insulation refractory material and a preparation method thereof. The main crystal phase of the anorthite light-weight and heat insulation refractory material is anorthite, and the material has the following main chemical components: 34-40wt.% of Al2O3, 39-45wt.% of SiO2, 15-20wt.% of CaO, and the balance of impurities. The anorthite light-weight and heat insulation refractory material has the typical properties that using temperature is 1250-1350 DEG C, volume density is 0.40-0.65g/cm , heat conduction coefficient is 0.19w/mk at the temperature of 800 DEG C, and compression strength is 1.0MPa.

Anorthite light-weight and heat insulation refractory material and preparation method thereof

The invention relates to a high-temperature heat-insulating coating which is prepared from the following raw materials: 20-70 percent of ceramic fibers, 10-55 percent of silica sol or water glass or a mixture of the silica sol and the water glass according to any proportion, 5-40 percent of activated alumina powder or aluminum hydroxide powder or a mixture of the activated alumina powder and the aluminum hydroxide powder according to any proportion, 0-50 percent of filler, 1-10 percent of high-viscosity adhesive, 0-3 percent of foaming agent and water (containing the silica sol, the water glass and the water for dispersing the ceramic fibers) 2-5 times the weight of total weight of solid materials. The prepared high-temperature heat-insulating coating has even adhesion, easy construction,flat coating, high temperature resistance after drying and good heat insulation.

High-temperature heat-insulating coating and preparation method thereof

A process for preparing the thermally insulating refractory calcium silicate plate for building, furnace, etc includes preparing raw slurry, colloidizing at 80-140 degC for 3-30 hr while stirring, making plate by different 4 approaches, steam curing, drying and machining

Method and devcie for making heat-insulation fireproof calcium silicate board

The invention relates to an anorthite intermediate used as an industrial kiln high-temperature heat-insulating material. A calcium silicate material, an aluminum silicate material, other aluminum-containing and/or calcium-containing materials, and the like are adopted as raw materials. Silica sol and cellulose or/and polyacrylamide are adopted as binding agents. The anorthite intermediate is prepared by adding water, mixing, performing compression molding and drying. The anorthite intermediate has good mechanical strength and heat insulating performance, can be converted into anorthite resisting to higher temperatures by reactions in a using environment with high temperatures of an industrial kiln, and can resist a temperature of 1200 DEG C.

Xiangxu Yu

Papers

Anorthite light-weight and heat insulation refractory material and preparation method thereof

High-temperature heat-insulating coating and preparation method thereof

Method and devcie for making heat-insulation fireproof calcium silicate board

An anorthite intermediate used as an industrial kiln high-temperature heat-insulating material