A kind of inorganic foam insulation material and preparation method thereof

Abstract

The invention relates to an inorganic foam heat insulating material and a preparation method thereof. Raw materials for preparing the inorganic foam heat insulating material comprise cement paste and foam. The cement paste is mainly formed by Portland cement, sulphoaluminate cement, pulverized coal ash, silica fume, expanding agent, coagulant enhancer, water reducing agent, waterproof agent, fiber and water according to a certain proportion. The foam is mainly formed by foaming agent, foam stabilizer and water according to a certain proportion. Compared with the prior art, the inorganic foam heat insulating material has the advantages of high heat insulating performance, light weight, high strength, low water absorbability, high crack resistance, high fireproof performance and long service life.

Description

technical field

[0001] The invention relates to the field of thermal insulation materials, in particular to an inorganic foam thermal insulation material and a preparation method thereof. Background technique

[0002] The popularization and application of my country's building energy-saving thermal insulation wall insulation technology and products started in the mid-1980s. After years of development, my country's building energy-saving external wall thermal insulation market has developed into a market with a wide variety of technical structures and a huge demand for products. industry. The systems popularized and applied in the market include foamed polystyrene board (EPS board) thin plaster exterior wall insulation system, foamed polystyrene board cast-in-place concrete exterior wall insulation system, extruded polystyrene board (XPS board) exterior wall External insulation system, rubber powder polystyrene particle composite external wall insulation system, polyurethan...

Examples

Embodiment 1

[0025] 1) Cement slurry preparation: 0.75kg of ordinary portland cement, 1.3kg of sulphoaluminate cement, 0.8kg of fly ash, 0.3kg of silica fume, dry mix for 2 minutes, add 1.3kg of water, 0.3kg of expansion agent, 0.01kg Coagulation accelerator, 0.005kg water reducing agent, 0.005kg water repellent and stir for 3 minutes, slowly add 0.03kg fiber and stir for 2 minutes.

[0026] 2) Foam preparation: Mix 5kg of foaming agent, 0.01kg of foam stabilizer and 150kg of water evenly, transfer it into a foaming machine, and prepare uniform and stable foam in the foaming machine.

[0027] 3) Mix the cement paste and foam in a mixer for 5 minutes at a volume ratio of 0.15:0.85 until evenly mixed.

[0028] 4) Pour the prepared foam cement into the mold made of insulation board, cover the mold with insulation board after pouring, remove the mold after 10 hours, cut it, and heat preservation and maintenance.

[0029] The temperature of the water used in the preparation of the inorganic fo...

Embodiment 2

[0031] 1) Cement slurry preparation: 1kg of ordinary Portland cement, 1kg of sulphoaluminate cement, 0.5kg of fly ash, 0.2kg of silica fume, dry mix for 1 minute, add 1kg of water, 0.25kg of expansion agent, and 0.01kg of coagulation accelerator Agent, 0.005kg water reducing agent, 0.005kg water repellent and stir for 4 minutes, slowly add 0.02kg fiber and stir for 3 minutes.

[0032] 2) Preparation of foam: Mix 5kg of foaming agent, 0.025kg of foam stabilizer and 125kg of water evenly, transfer it into a foaming machine, and prepare uniform and stable foam in the foaming machine.

[0033] 3) Mix the cement paste and foam in a mixer for 10 minutes at a volume ratio of 0.2:0.8 until evenly mixed.

[0034] 4) Pour the prepared foam cement into the mold made of insulation board, cover the mold with insulation board after pouring, remove the mold after 36 hours, cut it, and heat preservation and maintenance.

[0035] The water temperature of the water used in the preparation of t...

Embodiment 3

[0037] 1) Preparation of cement paste: Dry mix 2kg of ordinary Portland cement, 0.7kg of fly ash, and 0.15kg of silica fume for 2 minutes, add 1.3kg of water, 0.2kg of expansion agent, and 0.02kg of lithium silicate-containing composite coagulation accelerator Agent, 0.005kg water reducing agent, 0.004kg water repellent and stir for 4 minutes, slowly add 0.03kg fiber and stir for 3 minutes.

[0038] 2) Preparation of foam: Mix 5kg of foaming agent, 0.05kg of foam stabilizer and 150kg of water evenly, transfer it into a foaming machine, and prepare uniform and stable foam in the foaming machine.

[0039] 3) Mix the cement paste and foam in a mixer for 10 minutes at a volume ratio of 0.1:0.9 until evenly mixed.

[0040] 4) Pour the prepared foam cement into the mold made of insulation board, cover the mold with insulation board after pouring, remove the mold after 72 hours, cut it, and maintain it for heat preservation.

[0041] The water temperature of the water used in the prep...

technical field

[0001] The invention relates to the field of thermal insulation materials, in particular to an inorganic foam thermal insulation material and a preparation method thereof. Background technique

[0002] The popularization and application of my country's building energy-saving thermal insulation wall insulation technology and products started in the mid-1980s. After years of development, my country's building energy-saving external wall thermal insulation market has developed into a market with a wide variety of technical structures and a huge demand for products. industry. The systems popularized and applied in the market include foamed polystyrene board (EPS board) thin plaster exterior wall insulation system, foamed polystyrene board cast-in-place concrete exterior wall insulation system, extruded polystyrene board (XPS board) exterior wall External insulation system, rubber powder polystyrene particle composite external wall insulation system, polyurethan...

Examples

Embodiment 1

[0025] 1) Cement slurry preparation: 0.75kg of ordinary portland cement, 1.3kg of sulphoaluminate cement, 0.8kg of fly ash, 0.3kg of silica fume, dry mix for 2 minutes, add 1.3kg of water, 0.3kg of expansion agent, 0.01kg Coagulation accelerator, 0.005kg water reducing agent, 0.005kg water repellent and stir for 3 minutes, slowly add 0.03kg fiber and stir for 2 minutes.

[0026] 2) Foam preparation: Mix 5kg of foaming agent, 0.01kg of foam stabilizer and 150kg of water evenly, transfer it into a foaming machine, and prepare uniform and stable foam in the foaming machine.

[0027] 3) Mix the cement paste and foam in a mixer for 5 minutes at a volume ratio of 0.15:0.85 until evenly mixed.

[0028] 4) Pour the prepared foam cement into the mold made of insulation board, cover the mold with insulation board after pouring, remove the mold after 10 hours, cut it, and heat preservation and maintenance.

[0029] The temperature of the water used in the preparation of the inorganic fo...

Embodiment 2

[0031] 1) Cement slurry preparation: 1kg of ordinary Portland cement, 1kg of sulphoaluminate cement, 0.5kg of fly ash, 0.2kg of silica fume, dry mix for 1 minute, add 1kg of water, 0.25kg of expansion agent, and 0.01kg of coagulation accelerator Agent, 0.005kg water reducing agent, 0.005kg water repellent and stir for 4 minutes, slowly add 0.02kg fiber and stir for 3 minutes.

[0032] 2) Preparation of foam: Mix 5kg of foaming agent, 0.025kg of foam stabilizer and 125kg of water evenly, transfer it into a foaming machine, and prepare uniform and stable foam in the foaming machine.

[0033] 3) Mix the cement paste and foam in a mixer for 10 minutes at a volume ratio of 0.2:0.8 until evenly mixed.

[0034] 4) Pour the prepared foam cement into the mold made of insulation board, cover the mold with insulation board after pouring, remove the mold after 36 hours, cut it, and heat preservation and maintenance.

[0035] The water temperature of the water used in the preparation of t...

Embodiment 3

[0037] 1) Preparation of cement paste: Dry mix 2kg of ordinary Portland cement, 0.7kg of fly ash, and 0.15kg of silica fume for 2 minutes, add 1.3kg of water, 0.2kg of expansion agent, and 0.02kg of lithium silicate-containing composite coagulation accelerator Agent, 0.005kg water reducing agent, 0.004kg water repellent and stir for 4 minutes, slowly add 0.03kg fiber and stir for 3 minutes.

[0038] 2) Preparation of foam: Mix 5kg of foaming agent, 0.05kg of foam stabilizer and 150kg of water evenly, transfer it into a foaming machine, and prepare uniform and stable foam in the foaming machine.

[0039] 3) Mix the cement paste and foam in a mixer for 10 minutes at a volume ratio of 0.1:0.9 until evenly mixed.

[0040] 4) Pour the prepared foam cement into the mold made of insulation board, cover the mold with insulation board after pouring, remove the mold after 72 hours, cut it, and maintain it for heat preservation.

[0041] The water temperature of the water used in the prep...

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