Thermal insulation building material prepared from amino modified SiO2 aerogel in cooperation with solid waste carbonization and method

An amino modification, aerogel technology, applied in the field of building insulation materials, can solve the problem of low utilization rate of resources, and achieve the effects of excellent CO2 adsorption capacity, excellent mechanical properties, and low thermal conductivity

Inactive Publication Date: 2021-03-09
SHANXI UNIV
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Problems solved by technology

Therefore, the resource utilization rate of this kind of solid waste in building materials is low

Method used

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  • Thermal insulation building material prepared from amino modified SiO2 aerogel in cooperation with solid waste carbonization and method
  • Thermal insulation building material prepared from amino modified SiO2 aerogel in cooperation with solid waste carbonization and method
  • Thermal insulation building material prepared from amino modified SiO2 aerogel in cooperation with solid waste carbonization and method

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Embodiment Construction

[0034] The present invention will be further described in detail below in conjunction with specific embodiments.

[0035] Amino-modified SiO 2 The thermal insulation building material prepared by aerogel synergistic solid waste carbonization is composed of the following raw materials in parts by weight: amino-modified SiO 2 100-150 parts of airgel, 100-850 parts of solid waste, 0.5-4.25 parts of carbonization activator, 1-8.5 parts of silane coupling agent, 4-17 parts of organic binder, 0.3-1.35 parts of thickener, 0.05-0.425 parts of retarder, 0.2-1.7 parts of water reducing agent, 0.3-3.6 parts of fiber, 120-510 parts of water.

[0036] The solid waste is rich in Ca 2+ solid waste, including steel slag, desulfurized gypsum, phosphogypsum, fly ash, sulfur-fixed ash, denitration fly ash, or a mixture of several of them mixed in any proportion. The solid waste is steel slag, desulfurized gypsum , fly ash, and the mass ratio of steel slag, desulfurized gypsum, and fly ash is ...

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Abstract

The invention belongs to the field of building thermal insulation materials, and particularly relates to a thermal insulation building material prepared from amino-modified SiO2 aerogel in cooperationwith solid waste carbonization and a method. The material is prepared from amino-modified SiO2 aerogel, solid waste, a carbonization activator, a silane coupling agent, an organic binder, a thickener, a retarder, a water reducing agent, fibers and water, the raw materials are stirred evenly step by step, an obtained mixture is put into a mold to be formed, the mixture is placed in air at normal temperature and normal pressure for 24 hours, then the mold is removed, and a test piece is obtained. The test piece is put into a CO2 reaction kettle, and the thermal insulation building material is obtained by adopting a low-temperature carbonization curing mode and a high-temperature carbonization curing mode. The method is high in carbonization efficiency and large in solid waste utilization rate, and the prepared building thermal insulation material has a low heat conductivity coefficient and good thermal insulation performance, can be applied to the field of capture of industrial waste gas CO2 to cooperatively prepare thermal insulation building materials, and has the characteristic of green manufacturing of building materials.

Description

technical field [0001] The invention belongs to the field of building insulation materials, specifically amino-modified SiO 2 Insulation building materials and methods prepared by airgel and solid waste carbonization. Background technique [0002] With the rapid development of my country's industry and the advancement of urbanization, the stockpiles of industrial solid waste such as steel slag, desulfurized gypsum, fly ash, and coal gangue have increased year by year, and urban solid waste such as construction waste, domestic waste, kitchen waste, and sewage Treatment plant sludge and so on are increasing. The stockpiling of solid waste has caused a great negative impact on the environment, and its mass utilization as a resource is imminent. [0003] Among the many solid waste materials, there is a type of solid waste that has similar characteristics, that is, it contains a high Ca content, especially a high content of free CaO, such as steel slag, industrial by-product des...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/14
CPCC04B28/144C04B2201/20C04B2201/32C04B2201/50C04B18/142C04B22/144C04B18/08C04B18/062C04B14/064C04B22/10C04B24/42C04B2103/0057C04B24/383C04B24/04C04B24/24C04B16/0633C04B14/38
Inventor 贾冠华
Owner SHANXI UNIV
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