Aerogel compound saw dust plate and preparation method thereof
A compound saw and airgel technology, which is applied in the field of building materials, can solve problems such as hazards, high equipment requirements, and complicated procedures, and achieve the effects of reducing production costs, increasing the usable area, and improving workability
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Embodiment 1
[0029] An airgel composite sawdust board is made of the following raw materials by weight: 800 parts of 42.5-grade rapid-hardening low-alkalinity sulfoaluminate cement, 50 parts of fly ash, 3 parts of glass fiber, and 0.5 parts of defoaming agent , 2 parts of water reducing agent, 1 part of retarder, 0.5 part of water retaining agent, 2 parts of rubber powder, 300 parts of water and 100 parts of dried sawdust; the defoamer is tributyl phosphate; the water reducing The agent is calcium lignosulfonate; the retarder is zinc chloride; the rubber powder is activated rubber powder processed from waste tires, and its fineness is 40 mesh.
[0030] The preparation method of the airgel composite sawdust board comprises the following steps:
[0031] (1) Sawdust treatment: drying the sawdust at 80°C for 6 hours to obtain dried sawdust;
[0032] (2) Preparation of slurry: take each raw material by weight, 42.5 grade rapid hardening low alkalinity sulfoaluminate cement, fly ash, glass fibe...
Embodiment 2
[0037] An airgel composite sawdust board is made of the following raw materials in parts by weight: 1200 parts of 42.5-grade rapid-hardening low-alkalinity sulfoaluminate cement, 150 parts of fly ash, 4 parts of glass fiber, and 3 parts of defoaming agent , 3 parts of water reducing agent, 3 parts of retarder, 2 parts of water retaining agent, 8 parts of rubber powder, 500 parts of water and 150 parts of dried sawdust; the defoamer is simethicone; the water reducing The agent is polycarboxylate superplasticizer; the retarder is sodium borate; the rubber powder is activated rubber powder processed from waste tires, and its fineness is 80 mesh.
[0038] The preparation method of the airgel composite sawdust board comprises the following steps:
[0039] (1) Sawdust treatment: drying the sawdust at 80°C for 12 hours to obtain dried sawdust;
[0040] (2) Preparation of slurry: take each raw material by weight, 42.5 grade rapid hardening low alkalinity sulfoaluminate cement, fly ash,...
Embodiment 3
[0045] An airgel composite sawdust board is made of the following raw materials in parts by weight: 1000 parts of 42.5-grade rapid-hardening low-alkalinity sulfoaluminate cement, 100 parts of fly ash, 3.5 parts of glass fiber, and 2 parts of defoaming agent , 2.5 parts of water reducing agent, 2 parts of retarder, 1.0 part of water retaining agent, 3 parts of rubber powder, 400 parts of water and 120 parts of dried sawdust; the described defoamer is corn oil; the described water reducer is Sodium methylene dimethyl dinaphthalene sulfonate polymer; the retarder is sodium lignosulfonate; the rubber powder is activated rubber powder processed from waste tires, and its fineness is 60 mesh .
[0046] The preparation method of the airgel composite sawdust board comprises the following steps:
[0047] (1) Sawdust treatment: place the sawdust at 80°C for 10 hours to dry to obtain dried sawdust;
[0048] (2) Preparation of slurry: take each raw material by weight, 42.5 grade rapid ha...
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