CN211499255U

CN211499255U - Composite heat insulation board

Info

Publication number: CN211499255U
Application number: CN201922029938.7U
Authority: CN
Inventors: 路国忠
Original assignee: Beijing Building Materials Academy of Sciences Research
Current assignee: Beijing Building Materials Academy of Sciences Research
Priority date: 2019-11-21
Filing date: 2019-11-21
Publication date: 2020-09-15
Anticipated expiration: 2029-11-21

Abstract

The utility model provides a composite insulation board, composite insulation board includes that the cotton layer of glass is in with the setting the inorganic glass fiber layer of the cotton layer both sides of glass, inorganic glass fiber layer with connect through the fire-retardant polyurethane adhesive layer of siloxane modification between the cotton layer of glass, the cotton layer of glass is the pleating glass cotton. The utility model discloses a composite insulation board has excellent fire behavior and good thermal insulation performance simultaneously, the tensile strength of perpendicular to face direction is high, the stimulation of the cotton naked cotton of glass to constructor skin has been improved, the bonding strength between cotton naked cotton and the bonding mortar of glass and the plastering mortar has been increased, the anti-wind load ability of the cotton outer insulation system of glass has been improved, the security of the cotton outer insulation system of composite glass insulation board has been strengthened, but wide application in the outer insulation system of building outer wall, satisfy its fire-retardant and energy-conserving heat retaining requirement of preventing fires.

Description

Composite heat insulation board

Technical Field

The utility model relates to a building external wall insulation material field, more specifically relates to a composite insulation board.

Background

The external wall heat insulation material is specially used for building walls and can be divided into the following components according to the use positions: exterior wall insulation, interior wall insulation, roofing insulation; the heat insulation material can be divided into the following components according to the inherent components: inorganic thermal insulation materials and organic thermal insulation materials.

In a building, the heat loss of the outer protective structure is large, and the wall body in the outer protective structure accounts for a large part. Therefore, the reformation of building wall bodies and the development of wall body energy-saving technology are the most important links of the building energy-saving technology, and the development of external wall heat-insulating technology and energy-saving materials are the main realization modes of building energy conservation. The materials applied to the external wall heat insulation include EPS boards, XPS boards, foamed polyurethane boards and the like. However, with the occurrence of heat insulation fire accidents outside the outer wall of buildings at home and abroad, the heat insulation of glass wool begins to enter the field of heat insulation outside the outer wall of buildings at home from 2011. Glass wool belongs to one class of glass fibers, a man-made inorganic fiber. The glass wool is a material obtained by fiberizing molten glass into a wool-like shape, and the chemical component of the glass wool is glass, and is an inorganic fiber. The glass wool has the advantages of good molding, small volume density, low thermal conductivity, heat insulation, good sound absorption performance, corrosion resistance, stable chemical performance and the like, so that the glass wool is more and more widely used for external thermal insulation systems of external walls.

However, the fine fibers of the glass wool irritate human skin during construction, and reduce the adhesive property of the glass wool with adhesive mortar and finishing mortar.

SUMMERY OF THE UTILITY MODEL

Problem to prior art existence, the utility model provides a composite insulation board.

The utility model provides a composite insulation board, be in including the cotton layer of glass and setting the inorganic glass fiber layer of the cotton layer both sides of glass, inorganic glass fiber layer with connect through the fire-retardant polyurethane adhesive layer of siloxane modification between the cotton layer of glass, the cotton layer of glass is the pleating glass cotton.

The glass wool becomes crisscross each other by the horizontal direction through the direction of pleating back glass fiber, has increased the joining force between the cotton each layer of glass to the intensity of perpendicular to face direction has been increased, and the structure is inseparabler, and waterproof performance also has certain improvement.

The utility model provides a pleating glass is cotton can be formed by glass cotton through curing oven suppression after the pleating machine pleates, and the cotton performance index of used raw materials glass satisfies "glass is cotton for the thermal insulation and goods thereof" GB/T13350 supplyes materials with food 2017 requirement.

Further, the thickness of the glass wool layer is 20-150 mm.

Further, the pleating ratio of the pleated glass wool is 3, and the tensile strength in the direction perpendicular to the plate surface is more than 13 kPa.

Further, the thickness of the inorganic glass fiber layer is 1.5-3.0 mm.

Further, the inorganic glass fiber layer is in a structure of polymer modified cement mortar composite glass fiber felt.

Further, the thickness of the polymer modified cement mortar is 1.0-2.0 mm, and the thickness of the glass fiber yarn felt is 0.5-1.0 mm.

Further, the combustion performance of the siloxane modified flame-retardant polyurethane adhesive layer is B1 grade, the oxygen index is more than 30%, and the tensile bonding strength is more than 100 kPa.

The utility model discloses a composite insulation board has excellent fire behavior and good thermal insulation performance simultaneously, the tensile strength of perpendicular to face direction is high, the stimulation of the cotton naked cotton of glass to constructor skin has been improved, the bonding strength between cotton naked cotton and the bonding mortar of glass and the plastering mortar has been increased, the anti-wind load ability of the cotton outer insulation system of glass has been improved, the security of the cotton outer insulation system of composite glass insulation board has been strengthened, but wide application in the outer insulation system of building outer wall, satisfy its fire-retardant and energy-conserving heat retaining requirement of preventing fires.

Drawings

Fig. 1 is a schematic structural view of a composite insulation board provided by an embodiment of the present invention;

in the figure, 1-inorganic glass fiber layer; 2-siloxane modified flame-retardant polyurethane adhesive layer; 3-glass wool layer.

Detailed Description

The following describes the present invention in further detail with reference to examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

The embodiment provides a composite insulation board, and its schematic structure diagram is shown in fig. 1, including cotton layer 3 of glass and the inorganic glass fiber layer 1 of setting in cotton layer 3 both sides of glass, connect through siloxane modified fire-retardant polyurethane adhesive layer 2 between inorganic glass fiber layer 1 and the cotton layer 3 of glass, the cotton layer 3 of glass is the pleating glass cotton.

Specifically, the inorganic glass fiber layer 1 is formed by compounding polymer modified cement mortar and a glass fiber felt, the thickness of the inorganic glass fiber layer is 1.8mm, the thickness of the polymer modified cement mortar is 1.2mm, the thickness of the glass fiber felt is 0.6mm, and the glass fiber felt is close to the siloxane modified flame-retardant polyurethane adhesive layer 2. The thickness of the glass wool layer 3 was 90mm and the pleating ratio of the pleated glass wool was 3.

The preparation method of the composite heat insulation cotton of the embodiment specifically comprises the following steps:

and (3) sequentially adhering inorganic glass fiber layers 1 coated with siloxane modified flame-retardant polyurethane adhesive layers 2 on two side surfaces of the glass wool layer 3, then putting the whole on a press, applying 80kPa pressure, and standing for 2 hours to obtain the composite insulation board.

In the embodiment, the performance of the glass wool meets the requirements of glass wool for heat insulation and products thereof GB/T13350-2017; the performances of the polymer modified cement mortar composite glass fiber felt and the siloxane modified flame-retardant polyurethane adhesive meet the requirements of 'external thermal insulation engineering technical standard' JGJ 144-2019.

The glass wool is an inorganic heat-insulating material with relatively excellent performance in the A-grade heat-insulating material, is non-combustible when meeting fire, is non-toxic and harmless, has good durability, and can achieve the same service life as a building; the bonding performance and the environmental protection performance of the glass cotton bare cotton can be improved by compounding the polymer modified cement mortar and the glass fiber silk felt on two sides of the glass cotton, so that a novel heat-insulating material integrating fire prevention, heat insulation and environmental protection is formed, and a new idea is provided for the development of heat-insulating materials outside the outer wall in China.

Finally, the embodiments of the present invention are merely preferred embodiments, and are not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The composite insulation board is characterized by comprising a glass wool layer and inorganic glass fiber layers arranged on two sides of the glass wool layer, wherein the inorganic glass fiber layers are connected with the glass wool layer through a siloxane modified flame-retardant polyurethane adhesive layer, and the glass wool layer is pleated glass wool.

2. The composite insulation board according to claim 1, wherein the thickness of the glass wool layer is 20-150 mm.

3. A composite insulating board according to claim 1 or 2, characterised in that the pleated glass wool has a pleating ratio of 3 and a tensile strength in the direction perpendicular to the plane of the board of greater than 13 kPa.

4. The composite insulation board according to claim 1, wherein the inorganic glass fiber layer has a thickness of 1.5-3.0 mm.

5. The composite insulation board of claim 4, wherein the inorganic glass fiber layer is a polymer modified cement mortar composite glass fiber felt structure.

6. The composite insulation board according to claim 5, wherein the polymer modified cement mortar has a thickness of 1.0-2.0 mm, and the glass fiber mat has a thickness of 0.5-1.0 mm.

7. The composite insulation board of claim 1, wherein the siloxane modified flame retardant polyurethane adhesive layer has an oxygen index greater than 30% and a tensile bond strength greater than 100 kPa.