CN214821610U

CN214821610U - Aluminium honeycomb core composite fire-proof plate

Info

Publication number: CN214821610U
Application number: CN202022682528.5U
Authority: CN
Inventors: 鲍含伦
Original assignee: Heilongjiang Baoshi New Material Furniture Co ltd
Current assignee: Heilongjiang Baoshi New Material Furniture Co ltd
Priority date: 2020-11-18
Filing date: 2020-11-18
Publication date: 2021-11-23
Anticipated expiration: 2030-11-18

Abstract

The utility model relates to a compound PLASTIC LAMINATED of aluminium honeycomb core, first polyurethane glue film (2), second polyurethane glue film (4) are bonded respectively on aluminium honeycomb core layer (3) two sides, first fire prevention sheet layer (1) of first polyurethane glue film (2) outside bonding, second fire prevention sheet layer (5) of second polyurethane glue film (4) outside bonding. Respectively coating polyurethane glue on the back of the first fireproof plate layer (1) and the back of the second fireproof plate layer (5), and placing the aluminum honeycomb core layer (3) between the first fireproof plate layer (1) and the second fireproof plate layer (5) coated with the polyurethane glue layer; and (3) pressing and forming the three-layer plate obtained in the step 2) by adopting a press machine. The utility model discloses cost greatly reduced, the outward appearance is pleasing to the eye, and the range of application is wide, weatherability is strong, has advantages such as intensity height, high temperature resistant, corrosion resistance are strong, resistant fungus type is strong.

Description

Aluminium honeycomb core composite fire-proof plate

The technical field is as follows:

the utility model relates to a compound PLASTIC LAMINATED of aluminium honeycomb core.

Background art:

the earliest technology was to sandwich an aluminum honeycomb core between two layers of aluminum sheets and to stick density sheets with melamine decorative paper on both sides of the aluminum honeycomb core. The method is used for the fields of motor homes, airplanes, outdoor decoration, indoor decoration and the like. However, the above 2 processes have the following disadvantages: 1. the aesthetic property is poor; along with the expansion of the application range of the aluminum honeycomb core clamped in the middle of the aluminum plate, the requirement of attractive appearance is naturally met. At this time, some enterprises print on the aluminum plate, but the aluminum plate is printed with wood grains or marble grains, so that the aluminum plate looks fake and can be seen at a glance, and the beautiful effect is not good. 2. The use limitation is poor; in order to enhance the attractive effect, a density board with melamine decorative paper is stuck outside the aluminum plate, and the attractive effect of the melamine decorative paper is obviously better than that of printing on the aluminum plate. But after the density board with the melamine decorative paper is pasted outside the aluminum plate, the whole plate becomes thicker and heavier, is not waterproof, can only be applied to indoor decoration, and has great limitation in the using process. 3. The cost is high; no matter the density board is formed by clamping the aluminum honeycomb core between two layers of aluminum plates and sticking the melamine decorative paper on two sides of the aluminum honeycomb core, the cost is the cost of 2 layers of decorative aluminum plates and 2 layers of density boards besides the necessary aluminum honeycomb core. Especially, the application of the decorative aluminum plate directly brings about the cost increase by times, and the high cost limits the wide popularization and application of the material. 4. The stability is poor; the density boards with the melamine decorative paper adhered to the two sides of the aluminum honeycomb core inevitably have the problem of warping deformation caused by heating and stress of the density boards. Thus affecting the yield of the sheet and the risk of re-deformation in use. 5. The density board with melamine decorative paper adhered to the two sides of the aluminum honeycomb core has the inevitable defects of poor corrosion resistance, no high temperature resistance, no water resistance and the like because the surface layer of the density board with the decorative paper adhered to the density board is adopted; 6. the plate with the aluminum honeycomb core sandwiched between the two aluminum plates has the defects of poor impact resistance, large thermal expansion and cold contraction deformation rate and the like because the surface layer is the aluminum plate.

The invention content is as follows:

the utility model aims at providing a compound PLASTIC LAMINATED of aluminum honeycomb core, intensity can satisfy the operation requirement of current section bar, and the cost has had great decline than the aluminum honeycomb core board of surface-mounted aluminum plate. The technical scheme of the utility model is that: the utility model provides a compound PLASTIC LAMINATED of aluminium honeycomb core, first polyurethane glue film (2), second polyurethane glue film (4) are glued respectively to aluminium honeycomb core layer (3) both sides, first fire prevention sheet layer (1) of first polyurethane glue film (2) outside bonding, second fire prevention sheet layer (5) of second polyurethane glue film (4) outside bonding.

The utility model discloses technological effect:

1. the cost is greatly reduced; the price of PLASTIC LAMINATED is the one-third of aluminum plate price, and the panel that forms with the compound aluminum honeycomb core of PLASTIC LAMINATED reduces about two-thirds than accomplishing back cost with the compound aluminum honeycomb core preparation of aluminum plate, the utility model discloses promote on a large scale and popularize will greatly increased application area's share and the saving of aluminium metal resource.

2. The appearance effect is beautiful; the fireproof plate has the advantages of clear and thorough patterns, vivid effect, strong stereoscopic impression, no chromatic aberration, flat and smooth surface and the like. The fireproof plate has thousands of patterns, diversified colors and strong decoration, and is suitable for more demands. Whether wood grain, stone grain, pattern grain, or grain with a wire-drawing effect, is incomparable with aluminum plate printing.

3. The application range is wide, the weather resistance is strong, and the coating is suitable for more application fields; the utility model discloses the product is because the surface is the PLASTIC LAMINATED and the core is aluminium honeycomb and therefore has waterproof, dampproofing, mould proof advantage. In order to achieve the effect of enhancing the appearance, a process of sticking a density board with melamine decorative paper outside an aluminum honeycomb is provided in the prior art. Although the aesthetic effect of the melamine decorative paper is obviously better than that of printing on an aluminum plate, the density plate with the melamine decorative paper adhered outside the aluminum honeycomb makes the whole plate thicker and heavier and is not waterproof. Therefore, the plate can only be applied to interior decoration, and the plate has great limitation in the using process. The utility model discloses a panel that the compound aluminum honeycomb core of PLASTIC LAMINATED formed has compensatied above defect. The specific gravity is greatly reduced, and the composite material is more suitable for the fields of hanging items of buildings, furniture, traffic, aviation and the like and other inner partition walls and other parts with fireproof requirements and the like;

4. the fireproof board decoration layer has the advantages of high strength, high temperature resistance, strong corrosion resistance, strong bacteria resistance and the like. Compared with the aluminum honeycomb panel of the density board with the melamine decorative paper adhered outside the board, the high-temperature-resistant aluminum honeycomb panel is more resistant; the fire-proof plate can ensure that no bubbling cracking exists within 20 minutes at the high temperature of 1800 ℃, and the color and luster only slightly changes without bubbling cracking. Therefore, the board formed by compounding the fireproof plate with the aluminum honeycomb core has the advantages of strong corrosion resistance, strong bacterial resistance and high temperature resistance;

5. the size is stable, the tensile strength of the fireproof plate can reach 100.7MPa, the surface is smooth, the fireproof plate is anti-collision and wear-resistant, and the surface wear resistance of the fireproof plate can reach 700 turns; when the humidity and the temperature of the surrounding environment are greatly changed, the plate formed by compounding the fireproof plate with the aluminum honeycomb core has more advantages in the aspects of heat expansion and cold resistance, deformation resistance and the like compared with the plate formed by compounding the aluminum honeycomb core with the aluminum plate; the impact resistance of the fireproof plate can be ensured: the minimum diameter of the falling ball dent with the height of 1m can reach 4.2 mm; the 24-hour water absorption of the fireproof plate is only 0.1 percent; therefore, the board formed by compounding the fireproof board and the aluminum honeycomb core has the advantages of high surface strength, deformation resistance, moisture resistance, impact resistance, wear resistance, stable size and the like.

6. The processing technology is simple; the hot pressing or cold pressing process is adopted for preparing the fireproof plate composite aluminum honeycomb core plate. Through repeated tests, the unqualified product rate is extremely low as long as the parameters of temperature, time and pressure provided by the utility model are strictly processed;

7. the utility model discloses this technology is with better easy operation of cold pressing effect, the three-layer stack together the suppression can, nevertheless cold pressing is not applicable in the north, glues the knot that can be fast more than 20 degrees, below 20 degrees, is difficult to condense, influences the bonding effect, consequently when the temperature is less than 20 degrees in the north, with the mode of hot pressing.

8. The utility model discloses an outer bonding PLASTIC LAMINATED of aluminium honeycomb core, the PLASTIC LAMINATED is the fire-resistant building materials for the surface decoration, and the PLASTIC LAMINATED is the body paper, and titanium powder paper, kraft paper are through melamine and phenolic resin's impregnation technology, make through high temperature high-pressure environment, and hot press or cold press are all used in the processing.

Description of the drawings:

FIG. 1 is a cross-sectional view of the internal structure of the present invention

The specific implementation mode is as follows:

as shown in figure 1, the two sides of an aluminum honeycomb core layer 3 are respectively bonded with a first polyurethane adhesive layer 2 and a second polyurethane adhesive layer 4, the outer side of the first polyurethane adhesive layer 2 is bonded with a first fireproof plate layer 1, and the outer side of the second polyurethane adhesive layer 4 is bonded with a second fireproof plate layer 5.

The preparation method of the aluminum honeycomb core composite fireproof plate comprises the following steps: A. respectively scribble polyurethane and glue on the back of first fire prevention sheet layer 1, the back of second fire prevention sheet layer 5 respectively, every square meter is glued with 400 grams polyurethane of volume of gluing, and the proportion of polyurethane glue and curing agent is 4: 1; B. placing the aluminum honeycomb core layer 3 between the first fireproof board layer 1 and the second fireproof board layer 5 coated with the polyurethane adhesive layer; c. And (3) pressing and forming the three-layer plate obtained in the step 2) by adopting a press machine.

The thicknesses of the first fireproof plate layer 1 and the second fireproof plate layer are both 0.14 mm-30 mm; the thickness of the aluminum honeycomb core is 2mm-10 mm.

The plate pressing process adopts a hot pressing mode, the pressure of a three-layer hot press is 120 tons, the hot pressing time is increased along with the temperature reduction, the pressing time is doubled every time the temperature is reduced by 10 ℃, and the hot pressing temperature is 80 ℃: hot pressing time is 10 minutes; the hot pressing temperature is 70 ℃; hot pressing time is 20 minutes; the hot pressing temperature is 60 degrees centigrade: hot pressing time is 40 minutes; the hot pressing temperature is 50 degrees centigrade: hot pressing time 90 minutes.

The plate pressing process adopts a cold pressing mode, the pressure of a cold press is 50 tons, the ambient room temperature is required to be more than 23 ℃, and the cold pressing time is more than 10 hours.

The utility model discloses polyurethane adhesive and curing agent that preparation panel used among the specific embodiment.

1. Name of adhesive: chinese name of polyurethane adhesive: a main agent of LW310 two-component polyurethane sealing material; english name: LW310 Resin Of Two-Component Polyurethane Sealant.

2. Product description of the adhesive: LW310 is a high strength, solvent-free, two-component polyurethane adhesive. The main agent is a prepolymer containing hydroxyl, and the curing agent is a prepolymer containing isocyanate.

3. Polyurethane adhesive composition/compositional information

Chemical name: main agent of LW310 two-component polyurethane sealing material

4. The technical parameters of the adhesive are as follows: the following data were measured at 23 ℃

And (3) viscosity measurement method: brookfield viscometer rotation method

Mixing ratio (by weight): mixture (main agent + curing agent) 4:1

Initial tack formation: 4-8 hours (Adjustable)

And (3) complete curing: after 7 days

Shear strength: greater than 10.0MPa (aluminum/aluminum substrate)

Plane tensile strength: greater than 1.8MPa

Roller peel strength: greater than 50N.mm/mm

The applicable temperature range is as follows: -40 ℃ to 120 DEG C

Maximum temperature for one hour of brief exposure: 150 degree centigrade

5. Physical and chemical properties of adhesive

Appearance and properties: white liquid, slightly odorous

Flash point (. degree. C.): > 100 ℃ (closed cup)

Solubility: is hardly soluble in water

6. Stability and reactivity of adhesive

Stability: is stable at normal temperature and pressure.

Substances to avoid contact: strong oxidants and food chemicals.

Polymerization hazard: and is not polymerized.

Harmful decomposition products: CO, CO₂。

7. Ecological data of adhesive

And (3) ecological toxicity: no data.

Biodegradability: no data.

Non-biodegradability: no data.

The application examples of the embodiments of the present invention are as follows:

example 1:

the thicknesses of the first fireproof plate layer and the second fireproof plate layer are both 4 mm; the thickness of the aluminum honeycomb core is 10 mm. The sheet material after the preparation and the forming is 18 MM; the board is suitable for manufacturing furniture products, and with the development of society, human beings have entered the life age from the life age. People are but higher to the requirement of environmental protection in the fitment process, the utility model discloses a panel is because the core is the aluminium honeycomb, and the adhesive adopts the W310 polyurethane adhesive of environmental protection (the detection report in its feature of environmental protection annex), so its feature of environmental protection is higher than other types of artificial panel on the market far away, is real green building materials, satisfies the requirement of people to environmental protection and healthy life completely. Compared with the traditional facing aluminum plate and the density plate adhered with the melamine decorative paper, the decorative plate is more environment-friendly, lower in cost and stronger in aesthetic property. Compared with other types of artificial boards (such as shaving boards, core-board boards, solid wood multi-layer boards and the like), the artificial board has stronger deformation resistance, moisture resistance and environmental protection.

Example 2:

the thicknesses of the first fireproof plate layer and the second fireproof plate layer are both 1 mm; the thickness of the aluminum honeycomb core is 6 mm. The prepared and molded plate is 8 MM; the fireproof plate is more suitable for manufacturing interior decoration wallboards, has the characteristic of flexibility, is wider in application range, and can be used for a wall surface with a shape and the like. Because the surface fireproof plate for facing and the aluminum honeycomb of the core layer are both waterproof materials, the aluminum honeycomb is particularly suitable for finishing in wet environments such as bath centers, outdoors and the like.

Example 3:

the thickness of the first fireproof plate layer and the second fireproof plate layer is 0.5 mm; the thickness of the aluminum honeycomb core is 2 mm. The sheet material after the preparation and the forming is 3 MM; the plate has the characteristics of good weather resistance, beautiful decoration, light specific gravity, low plate cost, good bending property, small coefficient of expansion with heat and contraction with cold and the like, and is suitable for interior decoration and manufacture of carriages such as high-speed rails, trains and the like.

Claims

1. The utility model provides a compound PLASTIC LAMINATED of aluminum honeycomb core, characterized by: first polyurethane glue film (2), second polyurethane glue film (4) are glued respectively to aluminium honeycomb core layer (3) both sides, and first fire prevention sheet layer (1) of first polyurethane glue film (2) outside bonding, second fire prevention sheet layer (5) of second polyurethane glue film (4) outside bonding.