Segmented colloidal composite and rigid panels fabricated from the composite
A composite and colloid technology, applied in colloid chemistry, colloid chemistry, aerogel preparation, etc., can solve problems such as poor insulation performance
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Embodiment 1
[0055] Example 1: The following example is illustrative of the preparation and efficacy of segmented colloid-fiber composite and aerosol-based rigid panels according to the above invention. Accurate longitudinal segmentation of commercially available glass wool non-woven sheets with intact face sheets by using a utility knife or automated rotary tool in combination with a custom-made cutting fixture, with the goal of completing cuts no lower than the original thickness 90% of. Using this method, segmented glass wool sheets measuring 36" x 8" were prepared in both 1" and 2" segments. Combine the requisite amount of a soluble silica source (i.e., a sol comprising hydrolyzed tetraethoxysilane and its derivatives) and a condensation catalyst, and an aqueous ammonium hydroxide solution to penetrate the glass wool in a horizontal / planar pattern. Fabric sheet. After a 15 minute colloid dehydration period, the colloid / fiber composite was wound around a mandrel with a 6" diameter. Th...
Embodiment 2
[0058] Example 2: The segmented fiber reinforcements described above can also be made using any combination of binders containing fiber reinforcements and lightweight facing sheets. For example, use Knauf Batt Insulation (0.5”, 2lb / ft3) and a density of 10g / m 2 A glass curtain sheet preparation suitable for aerosols is a column-segmented fiber reinforcement. The fiber reinforcements are manufactured using a two-step process that involves, first, laminating the facing sheet to one side of the fiberglass along the entire length of the insulation batt using an acrylic adhesive (Fastbond). side, thereafter, using a utility knife and / or automatic rotary tool for precise longitudinal segmentation to not less than 90% of its original thickness. The longitudinal sectioning is done in this way to leave a laminated facing sheet intact. Segment lengths vary from 1" to 6".
[0059] Using these prefabricated segmented materials, a column of aerosol composites measuring 12" x 24" was pre...
Embodiment 3
[0061] Example 3: Preparation of prefabricated segmented reinforcements by lamination of discrete sheets of fiber reinforcement to a suitable lightweight facing sheet. A wide variety of materials such as mineral wool boards, fiberglass batts or rigid open cell foam are cut longitudinally into discrete pieces at preferred segmental intervals of 1" to 6", and subsequently laminated to a suitable facing sheet To prepare a segmented product suitable for aerosol preparation as described in Example 1 above. Aerosol products and panels were prepared with these reinforcements using the techniques described in Examples 1-2.
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