CN209384423U - A kind of fire-retardant graphite sheet - Google Patents

Abstract

The utility model discloses a kind of fire-retardant graphite sheets, it is made of graphite sandwich layer, glass layer and expanded graphite layer, it is simple and reasonable, good flame retardation effect, anti-pressure ability is strong, the specific graphite sandwich layer structure novel of the utility model, it is staggered by the graphite bar of triangular prism-shaped, the compressive property for considerably increasing graphite sheet is filled with fire proofing between graphite bar, has further ensured the flame retardant property of graphite sheet.

Description

A kind of fire-retardant graphite sheet

Technical field

The utility model relates to graphite sheet fields, more particularly to fire-retardant graphite sheet.

Background technique

With the continuous development of economic construction of China and the raising of living standards of the people, people are to building and decorations material More stringent requirements are proposed in terms of beautiful, comfortable and other function for material, still, in these New Building Materials, decorations In material and all kinds of top-grade furniture/components, considerable product contains a large amount of flammable or inflammable high molecular materials, is burning When be also possible to release a large amount of dense smokes and toxic gas, have potential fire risk.These combustibilities are indefinite to build It builds building materials, decorating and renovating material and all kinds of top-grade furniture/components largely to use between floors, be left safely for structural fire protection Hidden trouble.There are also relatively large place of public amusement, as dance hall, karaoke halls, nightclub, Internet bar, recreation, bathing, body-building and The food and drink place such as bar and coffee shop with amusement function.In recent ten years, a lot of places of public amusement occur successively for China Fire incident causes great casualties and property loss, and social influence is severe, becomes the public and media spotlight.

Fire occurs for the evening on the 2nd of September in 2018, the National Museum positioned at Rio de Daneiro, BRA city.The intensity of a fire always can not It controls, 20,000,000 collections have probably all been burned out in shop.After 5 hours, fireman controls the intensity of a fire, does not put out completely but Open fire.This museum's alien invasion is in bright yellow, through the visible inside of huge window by the corridor of sooting and the house beam burnt.Disappear Anti- member appears frequently, carries the collection that " rescue " comes out.When on fire, museum menostasis shop, 4 Security Personnel are timely in shop It escapes from, without casualties.By on September 4th, 2018, the entire three layers of building in museum was burned out substantially, and there are still collapsing wind Danger.Meanwhile National Museum vice manager has indicated, the collection that museum only has 10% is survived, including aerolite, ore and portion Point pottery art collection etc., century-old humanity wealth one of ruin torch, make us sobbing.

The major event causes attention of the people to fire proofing again, if the fire-retardant material of reasonable employment in building Material, can avoid the generation of many tragedies.

Fire proofing refer to be able to suppress or retardation burning and oneself be not easy to burning material.Main at present point For organic and inorganic, halogen and non-halogen this four major class, it is mainly used in plastics, foamed plastics, film, textile fabric, coating, rubber Glue, automotive upholstery, electric and electronic product etc. are widely used in the neck such as clothes, petroleum, chemical industry, metallurgy, shipbuilding, fire-fighting, national defence Domain.

Graphite is carbonaceous element crystalline mineral, its crystallization screen work is hexagon layer structure.Distance between each stratum reticulare For 340pm, the spacing of carbon atom is 142pm in same stratum reticulare, belongs to hexagonal crystal system, has a complete stratiform cleavage, cleavage surface with point It is weaker to van der Waals' force based on sub-key.

Graphite due to its special construction, and have following special nature: (1) heat-resisting quantity: the fusing point of graphite be 3850 ± 50 DEG C, boiling point is 4250 DEG C, though through superhigh temperature electric arc calcination, the loss very little of weight, thermal expansion coefficient also very little.Graphite is strong Degree improves with temperature and is reinforced, and at 2000 DEG C, graphite intensity is doubled.(2) conductive, thermal conductivity: the electric conductivity ratio of graphite General nonmetallic ore is 100 times high.Thermal conductivity is more than the metal materials such as steel, iron, lead.(3) lubricity: the greasy property of graphite takes Certainly in the size of graphite flakes, scale is bigger, and coefficient of friction is smaller, and greasy property is better.(4) chemical stability: graphite is normal There is good chemical stability under temperature, it can acidproof, alkaline-resisting and organic solvent-resistant corrosion.(5) plasticity: the good toughness of graphite, Very thin thin slice can be ground into.(6) thermal shock resistance: it is able to take the acute variation of temperature when graphite uses at normal temperature and will not breaks Bad, when temperature jump, the volume change of graphite is little, will not crack.

But so far, by graphite be applied to flame-retardant composite board material using relatively fewer and current flame-retardant composite board Material there are structures it is complex, anti-pressure ability is insufficient the problems such as.

Utility model content

The utility model, can be effectively fire-retardant mainly solving the technical problems that provide a kind of fire-retardant graphite sheet, and anti- Pressure energy power is strong.

In order to solve the above technical problems, the technical solution that the utility model uses is:

A kind of fire-retardant graphite sheet is provided, multilayered structure is successively constituted by glass layer (2) and graphite sandwich layer (1).

The graphite sandwich layer is made of the core panel (11) of graphite linings (12) and graphite linings upper and lower surface, the graphite linings by Several sections are the triangular prism graphite bar of isosceles triangle in the way of the upright sequence recycling cross arrangement of upright-handstand- It is embedded between core panel up and down, is reserved between adjacent two graphite bar gap (13), fire-retardant material is filled in the gap Material；The glass layer is covered on the surface of graphite sandwich layer.

In the graphite sandwich layer of the utility model, the graphite bar of triangular prism-shaped is staggered according to this in two pieces of cores of graphite sandwich layer Between panel, it is filled with fire proofing in gap, while making it have good flame retardant property, also there is excellent resistance to compression Ability.

Further, the height of the section isosceles triangle of the triangular prism graphite bar is equal with the thickness of graphite linings.

In the graphite sandwich layer of the utility model, the clearance distance between graphite bar is equal, isosceles triangle in graphite bar It is fixedly connected on the inside of the one side on bottom edge and core panel, and fixed company on the inside of the core panel of the seamed edge and the other side opposite with the face It connects.

Further, the glass layer is compiled by several longitudinal glass fibres (21) and several lateral glass fibres (22) It makes.

The glass layer of the structure can also play enhancing plate while playing fire retardation to a certain extent Intensity effect.

Further, graphite sandwich layer two sides are equipped with glass layer.

Further, expanded graphite layer (3) are equipped between the graphite sandwich layer and glass layer.

Further, the surface of the glass layer is equipped with wear-resistant material or adiabatic coating layer.

Further, pass through binder bonding connection between the glass layer, graphite sandwich layer and expanded graphite layer.

In specific embodiment of the utility model, the bonding agent is silicone adhesive agent.

Further, the graphite sheet overall thickness is 10~18mm, the gap width between the graphite bar is 2~ 3mm。

Further, the fire proofing is selected from one of magnesia, magnesium chloride, aluminium hydroxide flame-retardant material or several Kind.

The beneficial effects of the utility model are:

(1) the fire-retardant graphite sheet of the utility model has unique graphite core structure, and the graphite bar of triangular prism-shaped is according to this It is staggered between two pieces of core panels of graphite sandwich layer, since its stress surface is triangle, stability is good, anti-pressure ability By force, towards on the contrary, this structure makes graphite sandwich layer stress more evenly, anti-pressure ability significantly increases the arrangement of adjacent graphite bar, though It is simple that the graphite sandwich layer of right the utility model seems structure, but each component is combined by specific positional relationship, and collaboration increases Effect, the technical effect of generation are far longer than the adduction of the independent effect of each component, fire-retardant material are also filled between adjacent graphite bar Material, has ensured the flame retardant property of plate.

(2) the fire-retardant graphite sheet overall structure of the utility model is simple, and low in cost, good flame retardation effect can be in various rings Fire proofing use is done under border.

(3) the fire-retardant graphite sheet of the utility model facilitates production, can easily realize large-scale serial production, has wide Market application value.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model graphite sheet embodiment 1；

Fig. 2 is the graphite core schematic diagram of a layer structure of the utility model graphite sheet；

Fig. 3 is the glass fibre schematic diagram of a layer structure of the utility model graphite sheet；

Fig. 4 is the structural schematic diagram of the utility model graphite sheet embodiment 2

Fig. 5 is the structural schematic diagram of the utility model graphite sheet embodiment 3.

In figure: 1 graphite sandwich layer, 11 core panels, 12 graphite linings, 13 gaps, 2 glass layers, 21 longitudinal glass fibres, 22 Lateral glass fibre, 3 expanded graphite layers.

Specific embodiment

The technical solution of the utility model is clearly and completely described with reference to the accompanying drawing, it is clear that described reality Applying example is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, ability It is practical new to belong to this for domain those of ordinary skill every other embodiment obtained without making creative work The range of type protection.

In the description of the present invention, it should be noted that belonging to "center", "upper", "lower", "left", "right", " erecting Directly ", the direction of the instructions such as "horizontal", "inner", "outside" or positional relationship are to be only based on direction or positional relationship described in attached drawing For ease of description the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have it is specific Orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.

In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, belonging to " peace Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary, It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition The concrete meaning of language in the present invention.

Embodiment 1

A kind of fire-retardant graphite sheet successively constitutes multilayer knot by glass layer 2 and graphite sandwich layer 1 as shown in Fig. 1~2 Structure.

Graphite sandwich layer 1 is made of the core panel 11 of 12 upper and lower surface of graphite linings 12 and graphite linings, and graphite linings 12 are by several sections Face is that the triangular prism graphite bar of isosceles triangle is embedded in the way of the upright sequence recycling cross arrangement of upright-handstand- Between upper and lower core panel, be fixedly connected on the inside of the one side on isosceles triangle bottom edge and core panel 11 in graphite bar, and with the face phase Pair seamed edge and the core panel 11 of the other side on the inside of be fixedly connected so that the section etc. of the thickness of graphite linings and triangular prism graphite bar The height of lumbar triangle shape is equal.There are gap 13 between adjacent two graphite bar, the gap 13 between each graphite bar is apart from homogeneous Deng being filled with fire proofing aluminium hydroxide in gap 13, glass layer 2 is covered on the surface of graphite sandwich layer 1, glass layer Pass through silicone adhesive agent bonding connection between graphite sandwich layer.Graphite sheet overall thickness is 10mm, between the graphite bar between Gap width is 2mm.

As shown in figure 3, glass layer 2 by several longitudinal glass fibres 21 and several lateral establishments of glass fibre 22 and At the glass layer of the structure can also play the intensity of enhancing plate while playing fire retardation to a certain extent Effect.

In the graphite sandwich layer of the utility model, the graphite bar of triangular prism-shaped is staggered according to this in two pieces of cores of graphite sandwich layer Between panel, it is filled with fire proofing in gap, while making it have good flame retardant property, also there is excellent resistance to compression Ability.

Embodiment 2

A kind of fire-retardant graphite sheet successively constitutes multilayer knot by glass layer 2 and graphite sandwich layer 1 as shown in Figures 1 to 3 Structure.

Graphite sandwich layer 1 is made of the core panel 11 of 12 upper and lower surface of graphite linings 12 and graphite linings, and graphite linings 12 are by several sections Face is that the triangular prism graphite bar of isosceles triangle is embedded in the way of the upright sequence recycling cross arrangement of upright-handstand- Between upper and lower core panel, be fixedly connected on the inside of the one side on isosceles triangle bottom edge and core panel 11 in graphite bar, and with the face phase Pair seamed edge and the core panel 11 of the other side on the inside of be fixedly connected so that the section etc. of the thickness of graphite linings and triangular prism graphite bar The height of lumbar triangle shape is equal.There are gap 13 between adjacent two graphite bar, the gap 13 between each graphite bar is apart from homogeneous Deng being filled with fire proofing aluminium hydroxide in gap 13, glass layer 2 is covered on the surface of graphite sandwich layer 1, glass layer Pass through silicone adhesive agent bonding connection between graphite sandwich layer.Glass layer 2 is by several longitudinal glass fibres 21 and several cross It works out to glass fibre 22.Graphite sheet overall thickness is 18mm, and the gap width between the graphite bar is 3mm.

Embodiment 3

A kind of fire-retardant graphite sheet, as shown in figure 4, successively by 2 structure of glass layer 2, graphite sandwich layer 1 and glass layer At multilayered structure.

Graphite sandwich layer 1 is made of the core panel 11 of 12 upper and lower surface of graphite linings 12 and graphite linings, and graphite linings 12 are by several sections Face is that the triangular prism graphite bar of isosceles triangle is embedded in the way of the upright sequence recycling cross arrangement of upright-handstand- Between upper and lower core panel, be fixedly connected on the inside of the one side on isosceles triangle bottom edge and core panel 11 in graphite bar, and with the face phase Pair seamed edge and the core panel 11 of the other side on the inside of be fixedly connected so that the section etc. of the thickness of graphite linings and triangular prism graphite bar The height of lumbar triangle shape is equal.There are gap 13 between adjacent two graphite bar, the gap 13 between each graphite bar is apart from homogeneous Deng being filled with fire proofing aluminium hydroxide in gap 13, glass layer 2 is covered on the surface of graphite sandwich layer 1, glass layer 2 are worked out by several longitudinal glass fibres 21 and several lateral glass fibres 22.Lead between glass layer and graphite sandwich layer Cross silicone adhesive agent bonding connection.Graphite sheet overall thickness is 15mm, and the gap width between the graphite bar is 2mm.

Embodiment 4

A kind of fire-retardant graphite sheet, as shown in figure 5, successively by glass layer 2, expanded graphite layer 3, graphite sandwich layer 1, swollen Swollen graphite linings 3 and glass layer 2 constitute multilayered structure.

Graphite sandwich layer 1 is made of the core panel 11 of 12 upper and lower surface of graphite linings 12 and graphite linings, and graphite linings 12 are by several sections Face is that the triangular prism graphite bar of isosceles triangle is embedded in the way of the upright sequence recycling cross arrangement of upright-handstand- Between upper and lower core panel, be fixedly connected on the inside of the one side on isosceles triangle bottom edge and core panel 11 in graphite bar, and with the face phase Pair seamed edge and the core panel 11 of the other side on the inside of be fixedly connected so that the section etc. of the thickness of graphite linings and triangular prism graphite bar The height of lumbar triangle shape is equal.There are gap 13 between adjacent two graphite bar, the gap 13 between each graphite bar is apart from homogeneous Deng being filled with fire proofing aluminium hydroxide in gap 13, glass layer 2 is covered on the surface of graphite sandwich layer 1, glass layer 2 are worked out by several longitudinal glass fibres 21 and several lateral glass fibres 22.Glass layer, expanded graphite layer, graphite Pass through silicone adhesive agent bonding connection between sandwich layer.Graphite sheet overall thickness is 18mm, the gap width between the graphite bar For 3mm.

Embodiment 5

On the basis of embodiment 4, as preferred embodiment: the surface of glass layer 2 be equipped with wear-resistant material or Adiabatic coating layer.

The fire-retardant graphite sheet overall structure of the utility model is simple, and low in cost, good flame retardation effect can be under circumstances Fire proofing use is done, and there is unique graphite core structure, the graphite bar of triangular prism-shaped is staggered according to this in graphite core Between two pieces of core panels of layer, since its stress surface is triangle, stability is good, and anti-pressure ability is strong, adjacent graphite bar Arrangement is towards on the contrary, this structure makes graphite sandwich layer stress more evenly, and anti-pressure ability significantly increases, although the stone of the utility model It is simple that black sandwich layer seems structure, but each component is combined by specific positional relationship, synergistic, the technical effect of generation It is far longer than the adduction of the independent effect of each component, is also filled with fire proofing between adjacent graphite bar, has ensured the resistance of plate Fire performance.

While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.

Claims (10)

1. a kind of fire-retardant graphite sheet, which is characterized in that successively constitute multilayer knot by glass layer (2) and graphite sandwich layer (1) Structure；

The graphite sandwich layer is made of the core panel (11) of graphite linings (12) and graphite linings upper and lower surface, and the graphite linings are by several Section is that the triangular prism graphite bar of isosceles triangle is inlayed in the way of the upright sequence recycling cross arrangement of upright-handstand- It between upper and lower core panel, is reserved between adjacent two graphite bar gap (13), fire proofing is filled in the gap；Institute State the surface that glass layer is covered on graphite sandwich layer.

2. fire-retardant graphite sheet according to claim 1, which is characterized in that the section isosceles three of the triangular prism graphite bar Angular height is equal with the thickness of graphite linings.

3. fire-retardant graphite sheet according to claim 1, which is characterized in that the glass layer is by several longitudinal glass Fiber (21) and several lateral glass fibres (22) are worked out.

4. fire-retardant graphite sheet according to claim 1, which is characterized in that graphite sandwich layer two sides are equipped with glass fibers Tie up layer.

5. fire-retardant graphite sheet according to claim 4, which is characterized in that between the graphite sandwich layer and glass layer Equipped with expanded graphite layer (3).

6. fire-retardant graphite sheet according to claim 1, which is characterized in that the surface of the glass layer is equipped with wear-resisting Material or adiabatic coating layer.

7. described in any item fire-retardant graphite sheets according to claim 1~6, which is characterized in that the glass layer, graphite Pass through binder bonding connection between sandwich layer and expanded graphite layer.

8. fire-retardant graphite sheet according to claim 7, which is characterized in that the binder is silicone adhesive agent.

9. described in any item fire-retardant graphite sheets according to claim 1~6, which is characterized in that the graphite sheet overall thickness For 10~18mm, the gap width between the graphite bar is 2~3mm.

10. fire-retardant graphite sheet according to claim 1, which is characterized in that the fire proofing is selected from magnesia, chlorination One or more of magnesium, aluminium hydroxide flame-retardant material.