Preparation method of flame-retarding cement-based interface mat used in exterior wall external insulation

A cement-based technology for external thermal insulation of external walls, applied in the field of preparation of flame-retardant cement-based interface thin felt for external thermal insulation of external walls, can solve the problems of low bond strength of mortar and low flame retardancy of organic thermal insulation boards, and achieve smooth edges , High drying efficiency and high working efficiency

Inactive Publication Date: 2012-06-27
YANTAI ZHENGHAI NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the deficiencies of the above-mentioned prior art, and provide a kind of preparation method of flame-retardant cement-based interface thin felt for external wall insulation, mainly solve the problem of low flame retardancy and bonding with mortar of existing organic thermal insulation boards Problems such as low strength

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Example 1, according to design requirements, 30% by weight cement, 55% quartz powder, and 15% solid flame retardant were mixed evenly in advance. The cement was Mitsubishi 42.5R ordinary Portland cement, and the solid flame retardant was Weifang Magnesium The composite flame retardant of zinc borate and melamine cyanurate salt produced by Chemical Co., Ltd. is made into inorganic powder; then the composition of 40% by weight acrylic emulsion and VAE emulsion, 58.8% deionized water, 0.7% defoaming agent, 0.5% fungicide, mix evenly, the defoamer uses Shanghai Dinghe DH234, which is a mixture of polyether modified silicone, emulsifier and mineral oil, etc., and the fungicide uses Canadian Norder C15 water-based anti-mold fungicide, Prepare the polymer material; prepare the flame-retardant cement-based interface slurry with the inorganic powder and the polymer material in a stirring device, and the weight ratio of the polymer material and the inorganic powder is 1:1.75; use ...

Embodiment 2

[0014] Embodiment 2, according to the design requirements, pre-mix 35% cement, 45% quartz powder, and 20% solid flame retardant by weight percentage, and the solid flame retardant adopts a composite flame retardant of zinc borate and melamine cyanurate salt to prepare Inorganic powder; then the composition of 50% by weight of acrylic emulsion, VAE emulsion and white latex, 50% deionized water, mixed evenly, made polymer material; inorganic powder and polymer material in The flame-retardant cement-based interface slurry is prepared in the stirring device, and the weight ratio of the polymer material and the inorganic powder is 1:1.5; the flame-retardant cement-based interface slurry is coated on one side with a specification of 50g / flat surface of reinforced fiberglass thin felt is dried, corrected, trimmed and rolled in a tape machine to make a flame-retardant cement-based interface thin felt for external wall insulation.

Embodiment 3

[0015] Embodiment 3, according to the design requirements, pre-mix 20% cement, 60% quartz powder, and 20% solid flame retardant by weight percentage, and the solid flame retardant adopts a composite flame retardant of zinc borate and melamine cyanurate salt to prepare Inorganic powder; then 30% by weight of acrylic acid emulsion, 68% deionized water, 1.5% defoamer, 0.5% bactericide, mixed evenly, defoamer adopts mineral oil defoamer, bactericide adopts conventional The water-based anti-mildew bactericide is made into a polymer material; the inorganic powder and the polymer material are prepared into a flame-retardant cement-based interface slurry in a stirring device, and the weight ratio of the polymer material and the inorganic powder is 1:2; Use a tape coater to coat the flame-retardant cement-based interface slurry on one side on the surface of the reinforced glass fiber thin mat with a specification of 65 g / square, and dry, correct, trim, and collect in the tape machine R...

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Abstract

The invention discloses a preparation method of a flame-retarding cement-based interface mat used in exterior wall external insulation. The method is characterized in comprising the steps that: quartz powder, a solid fire retardant, and cement are well mixed, such that inorganic powder is prepared; high-molecular polymer emulsion, deionized water, an antifoaming agent, and a bactericide are well mixed, such that a polymer agent material is obtained; the inorganic powder and the polymer agent material are well mixed in a mixing apparatus, such that a flame-retarding cement-based interface slurry is prepared; the flame-retarding cement-based interface slurry is coated onto a surface of a reinforced glass fiber mat by using an adhesive tape coating machine; the mat is subject to bake-drying, rectifying, edge-trimming, and coiling, such that the flame-retarding cement-based interface mat used in exterior wall external insulation is prepared. With the provided method, the prepared flame-retarding cement-based interface mat can be composed onto surfaces of inorganic insulation materials such as rigid foam polyurethane, phenol formaldehyde, and XPS, such that surface flame-retardance of the insulation plates can be improved, and tensile adhesive strength between the insulation plates and polymer mortar can improved. The preparation method is advantaged in simple technology, low one-time investment, and high processing efficiency.

Description

Technical field: [0001] The invention relates to the technical field of external thermal insulation of building exterior walls, in particular to a method for preparing a flame-retardant cement-based interface thin felt for external wall thermal insulation. The interface thin felt can be compounded with rigid foam polyurethane (PU), phenolic , extruded polystyrene (XPS) and other organic insulation materials, improve the flame retardancy of the surface of the insulation board, and increase the tensile bond strength between the insulation board and the polymer mortar. Background technique: [0002] At present, factory prefabricated hard foam polyurethane (PU), phenolic, extruded polystyrene (XPS) insulation materials are widely used in building energy-saving exterior wall insulation projects because of their low thermal conductivity and good insulation effect. However, due to the low flame retardancy of these three types of organic insulation boards, the direct bond strength w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00C04B111/20
Inventor 胡玉海马仝逄忠强
Owner YANTAI ZHENGHAI NEW MATERIALS
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