Modified forming cement board
A foamed cement board and modification technology, applied in the field of building materials, can solve the problems of low thermal conductivity, poor mechanical properties, easy to break, etc., and achieve the effects of good fire resistance, good weather resistance, and good thermal insulation performance.
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Embodiment 1
[0029] In this embodiment, the foamed cement board raw materials include the following components in parts by weight:
[0030] 100 parts of ordinary Portland cement, 30 parts of fly ash, 15 parts of hydrogen peroxide, 2 parts of decabromodiphenylethane, 2 parts of sulfonated acetone formaldehyde condensation polymer, 3 parts of multi-polymer dispersant, 3 parts of polyurethane, 4 parts Foam stabilizer, 5 parts of coupling agent, 8 parts of alkali-resistant fiber, 1.5 parts of bis(2,2,6,6,-tetramethyl-4-piperidinyl) sebacate, 1 part of ultraviolet absorber.
[0031] In this example, the sulfonated acetone-formaldehyde polycondensate is prepared by the following method: after mixing and stirring sodium sulfite and water, slowly add acetone dropwise at a temperature of 50° C., then raise the temperature to 50° C., keep it warm for 1 hour, and then Formaldehyde was slowly added dropwise at 70°C, then the temperature was raised to 90°C, and the temperature was kept for 4 hours.
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Embodiment 2
[0039] Modified foamed cement board of the present invention, described foamed cement board raw material comprises the following components by weight:
[0040] 100 parts of ordinary Portland cement, 25 parts of fly ash, 11 parts of hydrogen peroxide, 0.5 parts of decabromodiphenylethane, 0.5 parts of sulfonated acetone formaldehyde condensation polymer, 1 part of multi-polymer dispersant, 1 part of polyurethane, 2 parts Foam stabilizer, 3 parts of coupling agent, 6 parts of alkali-resistant fiber, 0.5 part of bis(2,2,6,6,-tetramethyl-4-piperidinyl) sebacate, 0.5 part of ultraviolet absorber.
[0041] In this example, the sulfonated acetone-formaldehyde polycondensate is obtained by the following method: after mixing and stirring sodium sulfite and water, slowly add acetone dropwise at a temperature of 50° C., then raise the temperature to 50° C., keep it warm for 1 hour, and then Formaldehyde was slowly added dropwise at 70°C, then the temperature was raised to 90°C, and the t...
Embodiment 3
[0049] Modified foamed cement board of the present invention, described foamed cement board raw material comprises the following components by weight:
[0050] 100 parts of ordinary Portland cement, 40 parts of fly ash, 18 parts of hydrogen peroxide, 3 parts of decabromodiphenylethane, 3 parts of sulfonated acetone formaldehyde condensation polymer, 5 parts of multi-polymer dispersant, 5 parts of polyurethane, 6 parts Foam stabilizer, 6 parts of coupling agent, 12 parts of alkali-resistant fiber, 2 parts of bis(2,2,6,6,-tetramethyl-4-piperidinyl) sebacate, 2 parts of ultraviolet absorber.
[0051] In this example, the sulfonated acetone-formaldehyde polycondensate is prepared by the following method: after mixing and stirring sodium sulfite and water, slowly add acetone dropwise at a temperature of 50° C., then raise the temperature to 50° C., keep it warm for 1 hour, and then Formaldehyde was slowly added dropwise at 70°C, then the temperature was raised to 90°C, and the temp...
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