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Light non-combustible sound insulation board and preparation method thereof

A board, lightweight technology, applied in chemical instruments and methods, ceramic products, other household appliances, etc., can solve the problems of insignificant thermal insulation effect and insignificant effect of bonding, and achieve less foaming, good wetting, The effect of improving the sound insulation performance

Active Publication Date: 2020-08-11
廊坊市北辰创业树脂材料股份有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Under this content, the state of the polyurethane foaming adhesive in the magnesium board is mostly in the form of foam (above 80%), and the effect on bonding is not obvious
When the polyurethane non-foaming adhesive is added to the magnesium board, when the content reaches 7-9%, the non-combustible critical point is reached, and the dosage is doubled. Under this content, the polyurethane foaming adhesive is in a low-foaming state in the magnesium board (above 30-40%), the bonding effect is significantly improved, but the thermal insulation effect is not obvious

Method used

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  • Light non-combustible sound insulation board and preparation method thereof
  • Light non-combustible sound insulation board and preparation method thereof
  • Light non-combustible sound insulation board and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A light-weight non-combustible sound-insulating board, comprising the following raw materials in parts by weight: 20 parts of light magnesium oxide, 40 parts of expanded perlite, 30 parts of brine, and 10 parts of polyurethane adhesive. The polyurethane adhesive is a mixture of ketimine and PAPI at a mass ratio of 1:1; the viscosity is 1300 mPa.s.

[0025] The preparation method of the above-mentioned light non-combustible sound-insulating board is carried out according to the following steps:

[0026] (1) Add light magnesia, expanded perlite and polyurethane adhesive into the mixing mixer, and rotate at a high speed of 100r / min for 1.8h, so that the polyurethane adhesive is evenly dispersed on the surface of expanded perlite and light magnesia, and initially cured;

[0027] (2) Add brine and rotate at a high speed of 100r / min for 1 hour to fully dissolve light magnesium oxide and disperse it on the surface of expanded perlite;

[0028] (3) Add the material prepared in...

Embodiment 2

[0032] A light-weight non-combustible sound-insulating board, comprising the following raw materials in parts by weight: 25 parts of heavy magnesium oxide, 60 parts of open perlite, 40 parts of brine, and 12 parts of polyurethane adhesive. The polyurethane adhesive is a mixture of ketimine and PAPI at a mass ratio of 1:2; the viscosity is 1800 mPa.s.

[0033] The preparation method of the above-mentioned light non-combustible sound-insulating board is carried out according to the following steps:

[0034] (1) Add the heavy magnesia, open perlite and polyurethane adhesive into the mixing agitator, and rotate at a high speed of 80r / min for 2 hours, so that the polyurethane adhesive is evenly dispersed on the surface of the open perlite and heavy magnesia, and initially solidified;

[0035] (2) Add brine and rotate at a high speed of 80r / min for 1.5h to fully dissolve the heavy magnesium oxide and disperse it on the surface of the open perlite;

[0036] (3) Add the material prep...

Embodiment 3

[0040] A light non-combustible sound-insulating board, comprising the following raw materials in parts by weight: 15 parts of magnesium chloride, 15 parts of magnesium sulfate, 40 parts of closed perlite, 20 parts of brine, and 8 parts of polyurethane adhesive. The polyurethane adhesive is a mixture of ketimine and PAPI at a mass ratio of 1:0.5; the viscosity is 800 mPa.s.

[0041] The preparation method of the above-mentioned light non-combustible sound-insulating board is carried out according to the following steps:

[0042] (1) Add magnesium chloride, magnesium sulfate, closed perlite and polyurethane adhesive to the mixing mixer, and rotate at a high speed of 110r / min for 1.6h, so that the polyurethane adhesive is evenly dispersed on the surface of closed perlite, magnesium chloride and magnesium sulfate, and initially cured;

[0043] (2) Add brine and rotate at a high speed of 110r / min for 0.9h to fully dissolve magnesium chloride and magnesium sulfate and disperse them ...

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Abstract

The invention discloses a light non-combustible sound insulation board and a preparation method thereof. The light non-combustible sound insulation board is prepared from the following raw materials in parts by weight: 10-40 parts of a magnesium compound, 35-70 parts of perlite, 15-50 parts of brine and 5-12 parts of a polyurethane adhesive. According to the invention, ketimine and PAPI are utilized to prepare the low-viscosity, solvent-free and high-wettability polyurethane adhesive, and when the polyurethane adhesive is applied to the magnesium board, the magnesium board is good in wettability, less in foaming and high in bonding strength, the critical point of the usage amount is 11-12%, the cohesion strength of the magnesium board can be greatly improved while the fire resistance of the magnesium board is kept at the non-combustible level, the waterproof and damp-proof performance is improved, and the sound insulation performance is improved.

Description

technical field [0001] The invention belongs to the technical field of new material preparation, and in particular relates to a light non-combustible sound-insulating board and a preparation method thereof. Background technique [0002] Magnesium board, also known as glass magnesium board, is a multifunctional building material, which is made of magnesium oxide and magnesium chloride as the main raw materials, mixed with a certain proportion of perlite, brine, glass mesh cloth, wood fiber, etc. It has the characteristics of light weight, fire prevention, high strength, sound absorption, heat insulation, non-toxic and harmless, corrosion resistance, and no mildew. It is widely used in non-load-bearing walls, ceilings, and floor linings in architectural decoration. The main problem in the application process of magnesium board is that it is not resistant to water and moisture, and it is easy to cause problems such as "bubbling" and "swelling". During the production process, d...

Claims

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Application Information

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IPC IPC(8): C04B28/10C04B26/16B32B13/14B32B17/02C04B38/02C04B111/28C04B111/40C04B111/52
CPCC04B28/105C04B26/16B32B13/14B32B5/02C04B2111/28C04B2111/40C04B2111/52C04B2201/32C04B2111/00612B32B2307/102B32B2307/3065B32B2307/7265B32B2262/101C04B14/185C04B22/0026C04B24/282C04B38/02C04B22/12C04B22/142
Inventor 张子印
Owner 廊坊市北辰创业树脂材料股份有限公司
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