Preparation method of fireproof and waterproof type thermal insulation and decoration integrated board

Abstract

The application discloses a preparation method of a fireproof and waterproof type thermal insulation and decoration integrated board, wherein hollow glass microbeads with surface carbonization are added into a foaming agent, so that the prepared thermal insulation layer has good flame-retardant effect; and the hollow glass microbeads with surface carbonization are gathered to the edges and upper part of a foaming mold before foaming, so that the hollow glass microbeads with surface carbonization are enriched on the surface layer of the thermal insulation layer, and the flame-retardant effect of the thermal insulation layer is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to wall surface insulation and decoration integrated board production technology field, especially to a kind of preparation method of fireproof waterproof type insulation and decoration integrated board. BACKGROUND

[0002] Insulation and decoration integrated board is prefabricated structure, that is, first prepare insulation layer at the bottom of the facing layer, then install on the wall of building, play insulation and decoration effect.

[0003] Because insulation layer is generally prepared by organic foaming, resulting in poor flame-retardant effect of insulation layer, poor fireproof performance. Insulation layer is porous structure prepared by foaming, and when insulation and decoration integrated board is water permeable, it is easy to absorb water and increase weight, which is not conducive to the structural stability of insulation and decoration integrated board. SUMMARY

[0004] The present application discloses a kind of preparation method of fireproof waterproof type insulation and decoration integrated board, by adding surface carbonized hollow glass bead into foaming agent, so that the prepared insulation layer has good flame-retardant effect;Rest before foaming, which is conducive to the surface carbonized hollow glass bead to the edge and upper part of foaming mold, so that the surface carbonized hollow glass bead is enriched in the surface layer of insulation layer, and the flame-retardant effect of insulation layer is improved.

[0005] A kind of preparation method of fireproof waterproof type insulation and decoration integrated board, the preparation method is as follows:

[0006] (1) a certain amount of ethyl cellulose is dissolved in 8-10 times mass of anhydrous ethanol to obtain an ethyl cellulose solution;

[0007] (2) take 5-10 times mass of hollow glass bead of ethyl cellulose mass, add ethyl cellulose solution, evaporate and recover anhydrous ethanol;

[0008] (3) the hollow glass bead obtained in step (2) is placed in a muffle furnace and heated to 300-400 DEG C under sealed condition for 0.5-1 h to obtain surface carbonized hollow glass bead;

[0009] (4) the surface carbonized hollow glass bead obtained in step (3) is added into foaming agent and mixed uniformly;

[0010] (5) the bottom of the facing layer is placed in the foaming mold with the bottom upward, then the foaming agent obtained in step (4) is added, and after standing for 10-15 min, heating and foaming to obtain fireproof waterproof type insulation and decoration integrated board.

[0011] Further, the foaming agent is a polyurethane foaming agent.

[0012] Further, the hollow glass microbeads used in step (2) are pre-sprayed with 10%-20% by mass of a sodium methylsiliconate aqueous solution.

[0013] Further, the sodium methylsiliconate aqueous solution has a mass fraction of 1%-3%.

[0014] Further, the surface carbonized hollow glass microbeads in step (4) have a mass ratio of foaming agent of 1:2-3.

[0015] Further, in step (4), the surface carbonized hollow glass microbeads are first treated in an electrostatic chamber for 0.5-1h.

[0016] Advantages of the present application:

[0017] 1. The present application adds surface carbonized hollow glass microbeads to a foaming agent, so that the prepared thermal insulation layer has good flame retardant effect; and the surface carbonized hollow glass microbeads are beneficial to gather to the edges and upper part of the foaming mold before foaming, so that the surface carbonized hollow glass microbeads are enriched on the surface layer of the thermal insulation layer, and the flame retardant effect of the thermal insulation layer is improved.

[0018] 2. The hydrophobic property of the hollow glass microbeads is improved by treating the hollow glass microbeads with a sodium methylsiliconate aqueous solution.

[0019] 3. The dispersion degree of carbonized fibers and the coverage area of the carbonized fibers in the thermal insulation layer are increased after the surface carbonized hollow glass microbeads are treated in an electrostatic chamber, so that the flame retardant effect of the thermal insulation layer is improved. DETAILED DESCRIPTION

[0020] Example 1

[0021] A preparation method of a fireproof and waterproof thermal insulation and decoration integrated board is as follows:

[0022] (1) A certain amount of ethyl cellulose is dissolved in 10 times by mass of anhydrous ethanol to prepare an ethyl cellulose solution.

[0023] (2) Hollow glass microbeads with a mass of 6 times the mass of the ethyl cellulose are added to the ethyl cellulose solution, and the anhydrous ethanol is evaporated and recovered.

[0024] (3) The hollow glass microbeads obtained in step (2) are placed in a muffle furnace and heated to 350℃ under airtight conditions for 0.5h to obtain surface carbonized hollow glass microbeads.

[0025] (4) The surface carbonized hollow glass microbeads obtained in step (3) are added to a polyurethane foaming agent, and the mass ratio of the surface carbonized hollow glass microbeads to the foaming agent is 1:3, and the mixture is uniformly mixed.

[0026] (5) Put the bottom of the finishing layer upwards into the foaming mold, then add the foaming agent obtained in step (4), and after standing for 10 min, heat and foam to obtain the fireproof and waterproof type thermal insulation and decoration integrated board.

[0027] Example 2

[0028] The hollow glass microbeads used in step (2) are previously sprayed with 12% by mass of a sodium methyl silicate aqueous solution, and the rest of the process is the same as in Example 1.

[0029] Example 3

[0030] In step (4), the surface carbonized hollow glass microbeads are first treated in an electrostatic chamber for 0.5 h, and the rest of the process is the same as in Example 1.

[0031] Comparative Example 1

[0032] The thermal insulation layer is prepared directly using a polyurethane type foaming agent.

[0033] Comparative Example 2

[0034] In step (5), after adding the foaming agent, the thermal insulation layer is directly heated and foamed without standing, and the rest of the process is the same as in Example 1.

[0035] Comparative Example 3

[0036] Magnesium oxide is used instead of the surface carbonized hollow glass microbeads, and the rest of the process is the same as in Example 1.

[0037] Comparative Example 4

[0038] Without steps (1) to (3), the hollow glass microbeads are directly added to the polyurethane type foaming agent, and the rest of the process is the same as in Example 1.

[0039] Since the overall structure and water absorption performance of the thermal insulation layer prepared in the above examples and comparative examples are related, and after slitting, the actual performance does not match, the following tests are all tests on the whole thermal insulation and decoration integrated board.

[0040] Water absorption rate test: immerse the whole thermal insulation and decoration integrated board in water for 12 h to obtain the water absorption rate (%) of the thermal insulation layer.

[0041] Combustion performance: test the combustion performance of the thermal insulation layer according to GB8626-2007 "Building material flammability test method".

[0042] Test Water absorption (%) Combustion performance Example 1 0.91 B2 Example 2 0.55 B2 Example 3 0.98 B1 Comparative Example 1 2.6 B3 Comparative Example 2 1.4 B2 Comparative Example 3 2.7 B3

[0043] Finally: the above only for the preferred embodiments of the present application, and not for limiting the present application, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application, should be included in the scope of protection of the present application.

Claims

1. A method for preparing a fireproof, waterproof, heat-insulating, and decorative integrated panel, characterized in that: The preparation method is specifically as follows: (1) a certain amount of ethyl cellulose is dissolved in anhydrous ethanol to prepare an ethyl cellulose solution; (2) 5-10 times of the mass of the ethyl cellulose of the hollow glass beads previously sprayed with a sodium methyl silicate aqueous solution is added to the ethyl cellulose solution, and the anhydrous ethanol is evaporated and recovered; (3) the hollow glass beads obtained in the step (2) are placed in a muffle furnace and heated to 300-400 DEG C under a closed condition, and kept for 0.5-1 h to obtain hollow glass beads with carbonized surfaces; (4) the hollow glass beads with carbonized surfaces obtained in the step (3) are treated in an electrostatic chamber for 0.5-1 h, and then added to a foaming agent and uniformly mixed; (5) the bottom of a finishing layer is placed in a foaming mold with the bottom facing upward, then the foaming agent obtained in the step (4) is added, and after standing for 10-15 min, the foaming agent is heated to foam to prepare a fireproof and waterproof thermal insulation and decoration integrated board.

2. The method for manufacturing the fireproof and waterproof thermal insulation and decoration integrated board according to claim 1, characterized in that: The foaming agent is a polyurethane type foaming agent.

3. The method for preparing the fireproof and waterproof integrated thermal insulation and decorative panel according to claim 1, characterized in that: The mass fraction of the sodium methyl silicate aqueous solution is 1%-3%.

4. The method for preparing the fireproof and waterproof integrated thermal insulation and decorative panel according to claim 1, characterized in that: The mass ratio of the hollow glass beads with carbonized surfaces to the foaming agent in the step (4) is 1:2-3.