A kind of lightweight airgel material and preparation method thereof
An airgel, lightweight technology, applied in the direction of airgel preparation, chemical instruments and methods, silicon compounds, etc., can solve the problems of poor coagulation, water absorption, etc., and achieve an acceptable effect
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Embodiment 1
[0038]The lightweight airgel material described in the present embodiment, its preparation raw material includes: polymer material, 20 weight parts; Clay, 30 weight parts; The polymer material described in the present embodiment is pectin, described The clay is montmorillonite; the preparation method of the lightweight airgel material is:
[0039] (1) Mix 20 parts by weight of pectin, 30 parts by weight of montmorillonite and 1 part by weight of antibacterial agent at normal temperature, and add 100 parts by weight of water, heat to 40 degrees Celsius, and put into a stirrer at 450 Stir at a speed of -500 rpm for 10 minutes to form a hydrogel with a certain viscosity; the antibacterial agent described in this embodiment is bamboo extract.
[0040] (2) Pour the liquid into a flat plate, the thickness of the liquid in the flat plate is 10mm, and put it into a freezer at minus 40 degrees Celsius for 12 hours;
[0041] (3) Put the flat plate into the freeze dryer, set the tempera...
Embodiment 2
[0044] The lightweight airgel material described in this embodiment, its preparation raw materials include: polymer material, 15 parts by weight; clay, 35 parts by weight; the polymer material described in this embodiment is acrylic water-absorbing resin, so The particle size range of the acrylic water-absorbing resin is 1-100 microns. Described clay is kaolin; The preparation method of described lightweight airgel material is:
[0045] (1) Mix 15 parts by weight of acrylic water-absorbing resin, 35 parts by weight of kaolin and 1 part by weight of adsorbent at room temperature, add 250 parts by weight of water, heat to 40 degrees Celsius, and put it into a stirrer at 300- Stirring at a speed of 400 rpm for 30 minutes to form a suspension; the adsorbent in this embodiment is activated carbon, and the particle size of the activated carbon is in the range of 200-300 microns.
[0046] (2) Pour the liquid into a flat plate, the thickness of the liquid in the flat plate is 20mm, a...
Embodiment 3
[0050] The lightweight airgel material described in this embodiment, its preparation raw materials include: polymer material, 10 weight parts; Clay, 40 weight parts; The polymer material described in this embodiment is plant cellulose, so Described clay is bentonite; The preparation method of described lightweight airgel material is:
[0051] (1) Mix 10 parts by weight of plant cellulose, 40 parts by weight of bentonite, 0.5 parts by weight of adsorbent and 0.5 parts by weight of dyeing agent at room temperature, add 450 parts by weight of water, heat to 30 degrees Celsius, and Put it into a stirrer and stir at a speed of 450-500 rpm for 30 minutes to form a suspension; the adsorbent in this embodiment is activated carbon, and the coloring agent is β-carotene.
[0052] (2) Pour the liquid into a flat plate, the thickness of the liquid in the flat plate is 20mm, and put it into a liquid nitrogen solution at minus 190 degrees Celsius for 2 hours;
[0053] (3) Put the flat plate...
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