JP2014020194A - Glass wool heat insulation material covered with heat reflection aluminum foil adhered with fireproof treatment agent - Google Patents

Abstract

PROBLEM TO BE SOLVED: To resolve an inconsistency that, in a glass wool heat insulation material which is an indispensable raw material for building, covered with a heat reflection aluminum foil for improving functionality thereof, both materials being noncombustible materials, a combustible resin adhesive is being used as an adhesive, resulting in a case of fire in melting and dissipation of the glass wool heat insulation material due to combustion of the adhesive.SOLUTION: Provided is an adhering medium containing a sodium silicate solution. The sodium silicate solution is a reaction product of silica sand and soda, has high heat resistance, can tolerate melting of the heat reflection aluminum foil in an exposed portion in a case of fire. The adhering medium is used as a non-inflammable heat-resistant adhesive applied by a high temperature-resistant closed cell lamination molding, can maintain heat-resistance of the glass wool heat insulation material without generating toxic gas in a case of fire, and is effective for maintaining an environment for human life.

Description

  It is a soundproofing heat insulating material in the construction field, and is a field related to glass wool heat insulating material with heat reflecting aluminum foil.

  For the bonding between glass wool and aluminum foil, such as a conventional glass wool heat insulating material with heat reflecting aluminum foil, a flammable resin adhesive is mainly used.

  Even though the ultra-thin heat-reflective aluminum foil and the glass wool heat insulating material are non-combustible materials, a super-combustible adhesive is used for bonding them, resulting in a major contradiction.

  Both ultra-thin heat-reflective aluminum foil and glass wool insulation are incombustibles, but both cannot withstand the high temperatures during a fire.

  On top of that, the flammable resin adhesive is applied in a sandwich manner, and the flammable resin adhesive self-ignites and burns when the temperature rises in the event of a fire. Dissolves and has the disadvantage of increasing risk.

Even with this flammable resin adhesive, it is not impossible to make a nonflammable resin adhesive, but the cost is high and the economy is low.

Patented documents

  There is no glass wool insulation with non-combustible heat-reflective aluminum foil.

Indication of invention

Problems to be solved by the invention

  Combustion temperature of combustible resin adhesive that burns at around 200 ° C is several hundred degrees Celsius for bonding ultra-thin aluminum foil that melts at around 600 ° C in addition to ultra-fine glass fibers that melt at low temperatures around 500 ° C. It is assumed that it is meaningless from the safety of building materials.

  In order to satisfy the requirements of building materials, the heat resistance temperature of glass wool or the melting temperature of ultra-thin aluminum foil must be able to withstand external heating temperatures such as fires, as long as the critical function retention of the target material is an absolute requirement. For example, there is no meaning for a heat insulating structure.

  The current use of flammable resin adhesives is because they are manufactured with the ease of the bonding process at the same time as the low price, but both the current aluminum foil and glass wool, which are equivalent to flammable materials, are inherently incombustible. There is a means and cost to completely maintain the purpose of heat insulation, and at the same time, the heat resistance and heat insulation effect of glass wool insulation can be enhanced.

Means for solving the problem

  By using sodium silicate solution instead of the current flammable adhesive, heat-reflective aluminum foil-bonded glass wool heat-insulating materials for non-combustible heat-insulating construction materials, The flame-resistant and non-flammable heat insulation performance of sodium silicate sodium itself enables fire-temperature heat-resistant glass wool insulation.

  The composition of sodium silicate is a reaction product of silica sand and soda that does not ignite by flames or generate toxic gas, and it is applied to the surface of glass wool insulation or the surface of heat-reflective aluminum foil. When using a line, or when creating a new work process line, it can be freely determined by each response.

  The heat receiving surface of the glass wool insulation material changes between the occurrence of a fire on the building wall with glass wool insulation fitted with heat reflective aluminum foil and the outdoor fire, and the high temperature and heat resistance school receives heat from the heat reflective aluminum foil attached surface. However, in the case of glass wool bare on the opposite side of the heat reflective aluminum foil mounting surface, there is a limit to heat resistance and the possibility of fire spread is high. The heat-reflective aluminum foil is loaded with sodium.

Effect of the invention

  In pursuit of functionality and safety for all building material products, of course, cost performance is also emphasized, and the best measures in the event of a fire that poses a risk to life as well as increasing the efficiency of thermal energy are in the living environment. Although it is an incombustible residential area, the advantages of adhering heat-reflective aluminum foil with sodium silicate to improve the functionality of glass wool insulation that is indispensable for construction are as follows.

1. Both glass wool insulation and heat-reflective aluminum foil cannot handle temperatures from 800 ° C to 1000 ° C in the event of a fire. The combustion dissolution by the agent was completely prevented.
2. By applying sodium silicate as a non-combustible adhesive to the entire surface of the heat-reflective aluminum foil with a constant thickness of about 0.2 mm and bonding it, the temperature rises in the event of a fire. Even when it receives heat, the adhesive layer of sodium silicate as a nonflammable adhesive expands into a single cell by receiving heat at a high temperature, forms a nonflammable bubble layer, and maintains the function of the glass wool insulation fiber as a heat resistant insulation layer. This leads to an increase in the melting heat resistance temperature.
3. In the event of a fire, the generation of toxic gases due to the application of sodium silicate as a non-combustible adhesive is equivalent to the reaction product of silica sand and soda.
4. Adhesion cost of heat-reflective aluminum foil and glass wool insulation by sodium silicate as non-combustible adhesive is comparable to super-flammable resin adhesive.
5. Disposal of glass wool insulation and heat-reflective aluminum foil combined with sodium silicate as a non-combustible adhesive can be performed as landfill as a completely non-combustible material or by high-temperature incineration and dissolution.

BEST MODE FOR CARRYING OUT THE INVENTION

  [Claim 1] The sodium silicate solution as a non-combustible adhesive is applied to the entire surface of the heat-reflective aluminum foil bonded to the glass wool heat insulating material with a brush or spray at a constant thickness.

  Glass wool insulation is bonded to the surface of the heat-reflecting aluminum foil coated with sodium silicate solution.

  After the glass wool heat insulating material is bonded to the heat-reflecting aluminum foil sodium silicate solution coating surface, the drying is completed by heating the sodium silicate sodium.

  If necessary, perform the same process when attaching heat-reflective aluminum foil with sodium silicate solution to both the front and back surfaces of glass wool insulation or the thickness surface, and dry at a constant temperature while maintaining the shape after bonding. To complete.

  “Claim 2” is a method in which a sodium silicate solution as a non-combustible adhesive is applied to a glass wool heat insulating material surface with a constant thickness by spraying or the like, and a heat reflecting aluminum foil is attached to the application surface and dried.

  In this case, spray coating is effective for the sodium silicate solution as a non-combustible adhesive, as a matter of course, because it is inefficient with brushes or rollers due to the properties of the glass wool heat insulating material.

  At the same time, the glass wool insulation surface coated with sodium silicate liquid as a non-combustible adhesive on the surface is insulated from the heat-reflective aluminum foil by heat reception in the event of a fire. There is no thermal insulation fiber dissolution, and the thermal insulation function is more maintained.

  In “Claim 3”, “Claim 4”, and “Claim 5”, it is only necessary to select large, medium, and small viscosity products suitable for the purpose by selecting the concentration of sodium silicate solution.

  Cross-sectional view of the present invention in which a heat-reflective aluminum foil is mounted on one side of glass wool insulation   Cross-sectional view of the present invention in which heat-reflective aluminum foil is attached to the entire circumference of glass wool insulation   Sectional drawing of this invention which mounted | worn the heat | fever reflective aluminum foil on the single side | surface of the glass wool heat insulating material, and sprayed the sodium silicate liquid on the other side.

DESCRIPTION OF SYMBOLS 1 Construction heat insulating material 2 Heat reflection aluminum foil 3 Adhesive 4 Sodium silicate liquid 5 Glass wool heat insulating material

Claims (5)

The building heat insulation material (1) is coated with sodium silicate solution (4), Na ₂ O.nSiO ₂ .nH ₂ O as an adhesive (3) on one side of the heat-reflective aluminum foil (2), and has a fixed shape. A glass wool heat insulating material fitted with a heat-reflective aluminum foil with a non-combustible treatment agent, which is attached to the front and back surfaces of the glass wool heat insulating material (5) and part or all of the surrounding cross section if necessary, and heat-dried and adhered.   Apply the sodium silicate solution (4) as the adhesive (3) to the heat-reflective aluminum foil adhering surface of the glass wool insulation (5), attach the heat-reflective aluminum foil (2) to the coated surface, and heat dry. The heat | fever reflective aluminum foil mounting glass wool heat insulating material by the incombustible processing agent of Claim 1 which adhere | attached.   The heat-reflective aluminum foil-fitted glass wool heat insulating material with an incombustible treatment agent according to claim 1 or 2, wherein the sodium silicate solution (4) has a low viscosity.   The heat-reflective aluminum foil-fitted glass wool heat insulating material with an incombustible treatment agent according to claim 1 or 2, wherein the sodium silicate solution (4) has a medium viscosity.   The heat-reflective aluminum foil-fitted glass wool heat insulating material with an incombustible treatment agent according to claim 1 or 2, wherein the sodium silicate solution (4) is highly viscous.

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