A kind of manufacturing method of foamed cement insulation board added with foamed phenolic particles
A foamed cement and thermal insulation board technology is applied in the manufacturing field of foamed cement thermal insulation boards added with foamed phenolic particles, which can solve the problems of reducing bulk density, thermal conductivity, and increasing toughness, and achieves reducing bulk density, increasing toughness, and reducing Using the effect of thickness
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[0014] 1. Preparation of foamed phenolic particles:
[0015] Add the foamed phenolic form material into a disc sawtooth granulator to make granules of 0.1 to 5 mm. As foamed phenolic particles.
[0016] 2. Preparation of cementing and stabilizing material: Add calcium stearate to polyvinyl formal solution containing 50% water, and the ratio of polyvinyl formal aqueous solution: calcium stearate is 1:1, as a cementing and stabilizing material.
[0017] 3. Blank making: add 4 liters of water to the mixer, then add 100 ml of cementing stabilizer, 50 grams of short sisal fibers, 1 to 3 kg of foamed phenolic particles, and start the mixer at a stirring speed of 400 to 500 rpm. Stir well, then add 5 kg of No. 500 ordinary Portland cement, stir well for 1 minute, and finally add 500 ml of hydrogen peroxide solution with a content of 28%, stir quickly, and release it from the stirrer to the mold immediately when the volume expands In the process, after 5 days of hydration, the foame...
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