Fiber-reinforced polymer cement composite vacuum insulation board and preparation method thereof
A fiber-reinforced, vacuum-insulated technology, applied in thermal insulation, chemical instruments and methods, and insulation improvement, can solve the problems of high cost and low heat resistance, and achieve the effects of light weight, good pressure resistance, and improved utilization
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[0046] A method for preparing a fiber-reinforced polymer cement composite vacuum insulation board, characterized in that it comprises the following steps:
[0047] (1) After weighing the components of the mixed slurry, mix them thoroughly to obtain a mixture;
[0048] (2) After mixing the mixture obtained in step (1) with water, put it into the mixer and stir for 10 minutes to ensure sufficient mixing, wherein the mass ratio of water to the mixture of the above-mentioned components is 1: 2;
[0049] (3) Lay the sealing layer flat, then take a mold of the specified size and press it on it, and spread a layer of 1-20mm thick fiber-reinforced polymer cement mixed slurry, so that the mixed slurry can seal the inside of the mold. Layer covering, pressing for 8-24 hours, drying for 6-24 hours, and demoulding to form a high-strength gas barrier film with a protective layer;
[0050] (4) The high-strength gas barrier film with a protective layer is wrapped around the core material, a...
Embodiment 1
[0053] A fiber-reinforced polymer cement composite vacuum insulation board, comprising the following ingredients in the mass ratio of fiber-reinforced polymer cement: 20% cement, 35% quartz sand, 20% polymer emulsion, 5% chopped fiber, Phase change energy storage agent 10%, heat reflective insulation powder 4%, heavy calcium 5%, admixture 0.1%, water reducing agent 0.2%, retarder 0.7%.
[0054] After the above-mentioned raw materials are accurately measured, put them into a dry powder mortar mixer, and after mechanical mixing, mix with water and continue to stir for 10 minutes to ensure thorough mixing. The mass ratio of water to the above-mentioned components is 1: 2.
[0055] Under the conditions of this ratio, the fiber-reinforced polymer cement slurry with a thickness of 10mm is compounded on both surfaces of the vacuum insulation panel, and its properties are as follows: the compressive strength is 0.33MPa, and the density of the composite panel is 450kg / m 3 , the flexura...
Embodiment 2
[0057] A fiber-reinforced polymer cement composite vacuum insulation board, comprising the following ingredients in the mass ratio of fiber-reinforced polymer cement: 30% cement, 10% quartz sand, 25% polymer emulsion, 9% chopped fiber, Phase change energy storage agent 15%, heat reflective insulation powder 4%, heavy calcium 5%, admixture 1%, water reducing agent 0.3%, retarder 0.7%.
[0058] After the above-mentioned raw materials are accurately measured, put them into a dry powder mortar mixer, and after mechanical mixing, mix with water and continue to stir for 10 minutes to ensure thorough mixing. The mass ratio of water to the above-mentioned components is 1: 2.
[0059] Under the conditions of this ratio, the fiber-reinforced polymer cement slurry with a thickness of 10mm is compounded on both surfaces of the vacuum insulation panel, and its properties are as follows: the compressive strength is 0.35MPa, and the density of the composite panel is 442kg / m 3 , the flexural ...
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