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A kind of light mineral wool sound-absorbing board and preparation method thereof

A mineral wool sound-absorbing board, lightweight technology, applied in building components, sound insulation and other directions, can solve the problems of large volume of aerogel powder, not easy to uniformly disperse, easy to agglomerate, etc.

Active Publication Date: 2021-04-27
BEIJING NEW BUILDING MATERIALS PLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Airgel materials have excellent thermal insulation performance, thermal shock resistance and thermal stability, and low density, but the volume of airgel powder is large, it is not easy to disperse evenly in water, and it is prone to agglomeration
It has not been reported that airgel materials are directly used as raw materials for the preparation of mineral wool sound-absorbing panels

Method used

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  • A kind of light mineral wool sound-absorbing board and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Step 1: Weigh 100 parts by weight of granular cotton, SiO 2 5 parts by weight of airgel powder, 2 parts by weight of modified starch, 3 parts by weight of attapulgite clay, 0.1 part by weight of emulsified paraffin, 0.3 parts by weight of anionic polyacrylamide, and 0.2 parts by weight of aluminum sulfate.

[0039] Step 2: SiO 2 Airgel powder, anionic polyacrylamide, and aluminum sulfate are added into water, and fully stirred to obtain the first slurry.

[0040] Step 3: Add the modified starch, attapulgite clay, emulsified paraffin and granular cotton into the water in sequence, and stir thoroughly in a mixer to obtain the second slurry.

[0041] Step 4: Pour the first slurry into the second slurry to obtain a mixed slurry.

[0042] Step 5: The mixed slurry is wet-drawn and formed on a web forming machine.

[0043] Step 6: Transport the above-mentioned formed board to a drying kiln, and dry it at 230°C for about 2 hours to obtain a semi-finished mineral wool sound-a...

Embodiment 2

[0047] Step 1: Weigh 100 parts by weight of granular cotton, SiO 2 30 parts by weight of airgel powder, 10 parts by weight of modified starch, 20 parts by weight of attapulgite clay, 1.0 parts by weight of emulsified paraffin, 2.0 parts by weight of anionic polyacrylamide, and 1.0 parts by weight of aluminum sulfate.

[0048] Steps 2-8 are the same as in Example 1.

Embodiment 3

[0050] Step 1: Weigh 100 parts by weight of granular cotton, SiO 2 50 parts by weight of airgel powder, 20 parts by weight of modified starch, 30 parts by weight of attapulgite clay, 2.0 parts by weight of emulsified paraffin, 3.0 parts by weight of anionic polyacrylamide, and 2.0 parts by weight of aluminum sulfate.

[0051] Steps 2-8 are the same as in Example 1.

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Abstract

A lightweight mineral wool sound-absorbing panel and a preparation method thereof, wherein the lightweight mineral wool sound-absorbing panel includes airgel powder, so that the content of granular cotton forming the lightweight mineral wool sound-absorbing panel is 100 wt. In terms of parts, the content of the airgel powder is 5-50 parts by weight; the method includes: adding the airgel powder and flocculant to water, stirring to obtain the first slurry; The agent and granular cotton are added into the water and stirred to obtain the second slurry; the first slurry and the second slurry are mixed, molded and dried to obtain the lightweight mineral wool sound-absorbing board. The mineral wool sound-absorbing panel of the present application has high thermal resistance, low bulk density, simple preparation process and low cost.

Description

technical field [0001] This application relates to but not limited to the field of building materials, and specifically relates to but not limited to a lightweight mineral wool sound-absorbing panel and a preparation method thereof. Background technique [0002] Airgel materials have excellent thermal insulation performance, thermal shock resistance and thermal stability, and low density, but the volume of airgel powder is large, it is not easy to disperse evenly in water, and it is prone to agglomeration. It has not been reported that airgel materials are directly used as raw materials for the preparation of mineral wool sound-absorbing panels. Contents of the invention [0003] The following is an overview of the topics described in detail in this article. This summary is not intended to limit the scope of the claims. [0004] The application provides a mineral wool sound-absorbing panel with high thermal resistance and low bulk density and a preparation method thereof...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/00C04B26/28C04B14/06E04B1/86C04B14/46C04B111/40
CPCC04B14/064C04B14/46C04B26/285C04B28/001C04B2111/40C04B2201/20C04B2201/32E04B1/86C04B24/383C04B24/36C04B24/2652C04B22/148
Inventor 谭丹君王鹏起何亮王莹
Owner BEIJING NEW BUILDING MATERIALS PLC