Perlite heat-insulating plate for filling anti-fire door and preparation thereof

A perlite and fire door technology, applied in the field of fireproof materials, can solve the problems of low refractoriness, low strength, low strength of thermal insulation products, etc., and achieve the effect of improving high temperature thermal insulation fire resistance, good thermal insulation fire resistance and good bonding performance

Inactive Publication Date: 2008-10-08
吕博
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, its disadvantage is that the fire prevention and heat insulation effect is poor, it is easy to cause environmental pollution, and it causes great harm to human health.
Since then, technicians have invented a perlite fire-proof and heat-insulating product. The adhesive used in it is sodium silicate, and its bonding effect is poor. Requirements for fire-resistant performance, mostly used as thermal insulation materials at low temperature, under the condition of maintaining a certain strength, more fire-proof adhesives need to be added, resulting in excessive bulk density, generally 350-450kg / m 3 , with sodium silicate as the adhesive, the anti-alkali phenomenon is serious, and it is easy to open the glue after bonding with other materials, so it cannot be used as a high-temperature insulation material for fire doors
Therefore, its disadvantages are that its fireproof and heat insulation performance is not ideal, it can only be used at low temperature, its strength is low, its capacity is large, and it is prone to anti-alkali phenomenon.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Embodiment 1, take by weighing each material (component) that is used to make described fireproof adhesive by following weight ratio: 88 kilograms of sodium silicate of 38 Baume degree, the sodium carbonate of industrial grade 3.1 kg, 6 kg of 320-mesh magnesium silicate, first mix and stir the above-mentioned sodium carbonate and magnesium silicate evenly, then add sodium silicate, after fully stirring, place it for 12 hours, and then fully stir to make the fireproof adhesive Mixture, sealed and stored, for later use. Take 90 kilograms of expanded perlite powder particles with a particle diameter of 0.3-2.0 mm according to the following weight ratio, that is, parts by weight, and 45 kilograms of the above-mentioned prepared and standby fireproof adhesive, and 45 kilograms of water. The water and the fireproof adhesive are mixed and stirred evenly, and then mixed with the above-mentioned expanded perlite powder in the weight portion and fully stirred, so that the dry hum...

Embodiment 2

[0038] Embodiment 2, except that the weight ratio of the expanded perlite powder, fireproof adhesive and water is changed in the present invention, the material composition and weight ratio of the fireproof adhesive, the preparation method and the fireproof of the present invention The preparation method of the perlite insulation board for door filling, the particle diameter of each material, etc. are the same as those described in Example 1. In this embodiment, the weight ratio (parts by weight) of the above-mentioned expanded perlite powder, fireproof adhesive and water is: expanded perlite powder: 100 kg, fireproof adhesive: 10 kg, water: 70 kg . After testing, the bulk density of the perlite insulation board used for filling fire doors prepared in this embodiment is 236kg / m 3 , the compressive strength is 0.85MPa, and the thermal conductivity is ≤0.062w / m·k. For the prior art mentioned in the Background Art section, 20 kg of sodium silicate binder must be used to make th...

Embodiment 3

[0039] Embodiment 3, in addition to the weight ratio of the expanded perlite powder, fireproof adhesive and water in the present invention, the material composition and weight ratio of the fireproof adhesive, the preparation method and the fireproof of the present invention The preparation method of the perlite insulation board for door filling, the particle diameter of each material, etc. are the same as those described in Example 1. In this embodiment, the weight ratio (parts by weight) of the above-mentioned expanded perlite powder, fireproof adhesive and water is: expanded perlite powder: 75 kg, fireproof adhesive: 65 kg, water: 40 kg . After testing, the bulk density of the perlite insulation board used for filling fire doors prepared in this embodiment is 330kg / m 3 , the compressive strength is 1.76MPa, and the thermal conductivity is ≤0.078w / m·k. For the prior art mentioned in the Background Art section, 130 kg of sodium silicate binder must be used to make the prepar...

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Abstract

The invention relates to a perlite heat-insulating shield for filling a fire-proof door and a method for the production thereof, which mainly comprises expanded perlite powder particles of 75 to 100 parts and fireproof adhesive of 10 to 65 parts by weight, the heat-insulating shield also contains 40 to 70 parts of water by weight before drying the base body of the heat-insulating shield for adjusting the degree of dryness of the formed materials, the fireproof adhesive is a modified sodium silicate fireproof adhesive prepared by mixing 80 to 95 parts of sodium silicate, 2 to 6 parts of sodium carbonate and 4 to 20 parts of magnesium silicate by weight. The perlite heat-insulating shield solves the problems of large unit weight, bad high temperature heat insulation effect and low intensity of the prior art, and is mainly used for being filled in interlinings of fire-protecting devices such as fire-proof doors for fire protection and thermal insulation.

Description

technical field [0001] The invention relates to a fireproof material, in particular to a fireproof heat insulation product filled in interlayers of fireproof equipment such as fireproof doors. The invention also relates to a method of preparing said fire-resistant insulation product. Background technique [0002] At present, most of the fireproof and heat insulation (heat insulation) products filled by people to make fire doors are aluminum silicate wool or rock wool. Filling aluminum silicate wool or rock wool into the interlayer of fire doors generally fails to meet the fire resistance requirements of fire doors at high temperatures, and the needle-like dust of aluminum silicate wool or rock wool is easy to overflow, polluting the environment and air, and is harmful to the environment. Great harm to human health. At present, many countries have banned the use of aluminum silicate wool and rock wool as filling materials for fire doors. Therefore, its disadvantage is that...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B14/18C04B28/26C04B28/30
CPCC04B28/30C04B2111/28C04B28/26
Inventor 吕博
Owner 吕博
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