Building insulation board and preparation process thereof
Technical Field
The invention relates to the field of building insulation boards, in particular to a building insulation board and a preparation process thereof.
Background
The popular and easy to understand of the heat insulation plate is the plate for heat insulation of the building. The thermal insulation performance of the thermal insulation board is generally related to the thermal conductivity coefficient of the thermal insulation board, and the smaller the thermal conductivity coefficient is, the more excellent the thermal insulation performance of the thermal insulation board is.
Since different substances have different thermal conductivities, the thermal conductivity of the same substance is related to factors such as the structure, density, humidity, temperature and pressure of the same substance. When the water content of the same substance is low and the temperature is low, the heat conductivity coefficient is small. In general, solids have a thermal conductivity greater than that of liquids, which in turn are greater than that of gases.
At present, the heat conductivity coefficient of the vacuum insulation board is lowest, and the heat insulation performance is better. However, the vacuum layer is arranged inside the heat insulation plate, the requirement on the sealing performance of the heat insulation plate is high, once the sealing is poor, the vacuum environment is damaged, air enters and circulates to form convection, and the heat insulation effect of the heat insulation plate is greatly reduced.
Disclosure of Invention
1. Technical problem to be solved
Aiming at the problems in the prior art, the invention aims to provide a building insulation board and a preparation process thereof, which can realize that after a vacuum layer is damaged and enters air, the arranged high-elasticity sponge expands, reduce the circulation between the air and further enable the insulation board to continuously exert the insulation function.
2. Technical scheme
In order to solve the above problems, the present invention adopts the following technical solutions.
The utility model provides a building insulation board, includes the heated board body, the inside of heated board body is excavated there is the inside groove, the internal connection of inside groove has the vacuum box, the upper end of vacuum box is equipped with the evacuation mouth, the inside of vacuum box is equipped with high elasticity sponge and stereotype board respectively, be connected with the connecting block between high elasticity sponge and the stereotype board, and the connecting block is located the central point of high elasticity sponge and stereotype board and puts, the both ends of stereotype board all are connected with the ball, and the ball is kept away from the one end of stereotype board and is contacted with the inner wall of vacuum box, can realize suffering destroying the entering air in the vacuum layer after, the high elasticity sponge inflation that sets up reduces the circulation between the air, and then makes the heated board.
Furthermore, a super-hydrophobic coating is coated on the outer surface of the insulation board body, and water is not easy to permeate into the insulation board body due to the hydrophobicity of the super-hydrophobic coating.
Further, the one end that the stereotype is close to the high elasticity sponge is dug and is had two pairs of spacing spouts, and two pairs of spacing spouts are located the four sides middle part of high elasticity sponge respectively, sliding connection has spacing slider in the spacing spout, and the middle part of spacing slider and high elasticity sponge bonds, can promote spacing slider and make it slide in spacing spout when the high elasticity sponge inflation, and spacing spout and spacing slider combined action can control the inflation direction of high elasticity sponge.
Furthermore, one end of the inner side of the vacuum box, which is in contact with the ball, is connected with a polishing layer, so that friction between the ball and the inner wall of the vacuum box is reduced, and the ball is easy to move.
Furthermore, a cavity is formed between the outer side wall of the vacuum box and the inner wall of the inner groove, sodium carbonate powder is filled in the cavity, an aluminum sulfate powder coating is coated on the surface of the high-elasticity sponge, when the vacuum box is damaged due to a fire, the sodium carbonate enters the vacuum box to react with aluminum sulfate, and then a large amount of foam is generated to be attached to the surface of the high-elasticity sponge, so that the contact between the high-elasticity sponge and air is effectively isolated, the flammability of the high-elasticity sponge is reduced, and the high-elasticity sponge is not easy to.
Furthermore, the cavity is filled with carbon dioxide gas, and the carbon dioxide can effectively prevent the fire from spreading when a fire disaster occurs.
Further, the outer end of the vacuum box is connected with a refraction plate, the refraction plate is of a fold line structure, one end, far away from the vacuum box, of the refraction plate is a smooth mirror surface, and the refraction portion enters heat.
Further, the surface of stereotype board has evenly scribbled luminous coating, the light that luminous coating sent can be yellow, and luminous coating's thickness is 100-150um, when observing the yellow light from the heated board body outside night, shows heated board body surface damage, needs to change.
Furthermore, a plurality of lightening grooves which are evenly distributed are formed in one end, far away from the high-elasticity sponge, of the shaping plate, and the lightening grooves are of an arc-shaped structure, so that the shaping plate can be lightened, the shaping plate is easy to expand to drive to move, the surface area of the luminous coating can be increased, and the luminous brightness is improved.
A building insulation board is prepared by the following steps: the method comprises the following steps:
first, injection molding to form a vacuum box:
adding a pouring material, a surfactant, a foaming agent and a modifier into a premixing tank according to process requirements for mixing, injecting the mixture into a mold through a casting machine, pressurizing to cool the mixture to form an upper mold, preparing a lower mold matched with the upper mold in size and shape in the same way, sequentially placing a connecting block, a high-elasticity sponge, a shaping plate and balls which are connected between the upper mold and the lower mold according to a figure, and closing the upper mold and the lower mold through high-temperature pressurization to form a vacuum box;
secondly, vacuumizing:
semi-circular matched vacuumizing ports are formed in the upper die and the lower die, the interior of the vacuum box is vacuumized through the vacuumizing ports by a vacuumizing machine, the high-elasticity sponge is compressed under the vacuum effect, and then the vacuumizing ports are sealed by hot melt adhesive;
thirdly, putting the vacuum box into the heat preservation plate body:
and taking out the insulation board body, cutting an inner groove slightly larger than the vacuum box in the insulation board body, putting the vacuum box into the inner groove, sealing the inner groove, and finishing the manufacture of the insulation board.
3. Advantageous effects
Compared with the prior art, the invention has the advantages that:
(1) according to the scheme, after the vacuum layer is damaged and enters air, the arranged high-elasticity sponge expands, circulation among the air is reduced, and the heat insulation plate can continue to exert the heat insulation function.
(2) The outer surface of the insulation board body is coated with the super-hydrophobic coating, and water is not easy to permeate into the insulation board body through the hydrophobicity of the super-hydrophobic coating.
(3) Two pairs of limiting sliding grooves are drilled at one end, close to the high-elasticity sponge, of the shaping plate and are respectively located in the middle of four sides of the high-elasticity sponge, limiting sliding blocks are connected in the limiting sliding grooves in a sliding mode and are bonded with the middle of the high-elasticity sponge, the limiting sliding blocks can be pushed to slide in the limiting sliding grooves when the high-elasticity sponge expands, and the limiting sliding grooves and the limiting sliding blocks are matched to control the expansion direction of the high-elasticity sponge.
(4) One end of the inner side of the vacuum box, which is contacted with the ball, is connected with a polishing layer, so that the friction between the ball and the inner wall of the vacuum box is reduced, and the ball is easy to move.
(5) A cavity is formed between the outer side wall of the vacuum box and the inner wall of the inner groove, sodium carbonate powder is filled in the cavity, an aluminum sulfate powder coating is coated on the surface of the high-elasticity sponge, when the vacuum box is damaged due to a fire, the sodium carbonate enters the vacuum box to react with aluminum sulfate, then a large amount of foam is generated to be attached to the surface of the high-elasticity sponge, the high-elasticity sponge is effectively isolated from being contacted with air, the flammability of the high-elasticity sponge is reduced, the high-elasticity sponge is not easy to support combustion, carbon dioxide gas is filled in the cavity, and the carbon dioxide can.
(6) The outer end of the vacuum box is connected with a refraction plate which is of a fold line-shaped structure, one end, far away from the vacuum box, of the refraction plate is a smooth mirror surface, and the refraction part enters heat.
(7) The outer surface of the shaping plate is evenly coated with a luminous coating, the light emitted by the luminous coating can be yellow, the thickness of the luminous coating is 100-150um, and when yellow light is observed from the outside of the insulation board body at night, the surface of the insulation board body is damaged, and the insulation board body needs to be replaced.
(8) One end of the shaping plate far away from the high-elasticity sponge is provided with a plurality of weight reducing grooves which are uniformly distributed, and the weight reducing grooves are arranged into arc-shaped structures, so that the shaping plate can be reduced in weight, the shaping plate is easy to expand to drive to move, the surface area of the luminous coating can be increased, and the luminous brightness is improved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the structure at A in FIG. 1;
FIG. 3 is a schematic view of the structure at B in FIG. 1;
FIG. 4 is a schematic side view of the position of the limiting chute according to the present invention;
fig. 5 is a schematic view of the expanded high resilience sponge block of the present invention.
The reference numbers in the figures illustrate:
the heat insulation board comprises a heat insulation board body 1, internal grooves 2, a vacuum box 3, a vacuum pumping port 31, a connecting block 4, a high-elasticity sponge block 5, a shaping plate 6, a limiting sliding groove 61, a limiting sliding block 62, balls 7 and weight reduction grooves 8.
Detailed Description
The drawings in the embodiments of the invention will be combined; the technical scheme in the embodiment of the invention is clearly and completely described; obviously; the described embodiments are only some of the embodiments of the invention; but not all embodiments, are based on the embodiments of the invention; all other embodiments obtained by a person skilled in the art without making any inventive step; all fall within the scope of protection of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1:
referring to fig. 1-5, a building insulation board comprises an insulation board body 1, an inner groove 2 is cut in the insulation board body 1, a vacuum box 3 is connected in the inner groove 2, a vacuum-pumping port 31 is formed in the upper end of the vacuum box 3, a high-elasticity sponge 5 and a shaping plate 6 are respectively arranged in the vacuum box 3, a connecting block 4 is connected between the high-elasticity sponge 5 and the shaping plate 6, the connecting block 4 is located at the center of the high-elasticity sponge 5 and the shaping plate 6, two ends of the shaping plate 6 are both connected with balls 7, and one end of each ball 7, which is far away from the shaping plate 6, is in contact with the inner wall of the vacuum box 3.
Two pairs of limiting sliding grooves 61 are drilled at one end, close to the high-elasticity sponge 5, of the shaping plate 6, the two pairs of limiting sliding grooves 61 are respectively located in the middles of four sides of the high-elasticity sponge 5, limiting sliding blocks 62 are connected in the limiting sliding grooves 61 in a sliding mode, the limiting sliding blocks 62 are bonded with the middles of the high-elasticity sponge 5, when the high-elasticity sponge 5 expands, the limiting sliding blocks 62 are pushed to slide in the limiting sliding grooves 61, and the limiting sliding grooves 61 and the limiting sliding blocks 62 are matched to control the expansion direction of the high-elasticity sponge 5.
The super-hydrophobic coating is smeared on the outer surface of the heat-insulation board body 1, the hydrophobicity of the super-hydrophobic coating enables water to be difficult to permeate into the heat-insulation board body 1, the inner side of the vacuum box 3 is connected with a polishing layer with one end contacted with the ball 7, friction between the ball 7 and the inner wall of the vacuum box 3 is reduced, and the ball 7 is easy to move.
A cavity is formed between the outer side wall of the vacuum box 3 and the inner wall of the inner groove 2, sodium carbonate powder is filled in the cavity, an aluminum sulfate powder coating is coated on the surface of the high-elasticity sponge 5, when the vacuum box 3 is damaged in case of fire, the sodium carbonate enters the vacuum box 3 to react with aluminum sulfate, then a large amount of foam is generated to be attached to the surface of the high-elasticity sponge 5, the high-elasticity sponge 5 is effectively isolated from being contacted with air, the flammability of the high-elasticity sponge 5 is reduced, the high-elasticity sponge 5 is difficult to support combustion, carbon dioxide gas is filled in the cavity, and the carbon dioxide can effectively prevent.
The outer end of vacuum box 3 is connected with the refraction board, the refraction board sets up to zigzag structure, and the one end that vacuum box 3 was kept away from to the refraction board is smooth mirror surface, the heat that the refraction part got into, the surface of stereotype 6 has evenly been paintd luminous coating, the light that luminous coating sent can be yellow, and luminous coating's thickness is 100-150um, when observing the yellow light from heated board body 1 outside night, show heated board body 1 surface damage, need change, stereotype 6 one end of keeping away from high elasticity sponge 5 is excavated and is had a plurality of lightening grooves 8 of evenly distributed, and it sets up to the arc structure to lighten groove 8, can subtract heavy to stereotype 6, easily high elasticity sponge 5 inflation drives stereotype 6 and removes, can increase luminous coating's surface area again, improve luminance.
The preparation process comprises the following steps: the method comprises the following steps:
first, injection molding the vacuum box 3:
adding a casting material, a surfactant, a foaming agent and a modifier into a premixing tank according to process requirements for mixing, injecting the mixture into a mold through a casting machine, pressurizing to cool the mixture to form an upper mold, preparing a lower mold matched with the upper mold in size and shape in the same way, sequentially placing a connecting block 4, a high-elasticity sponge 5, a shaping plate 6 and balls 7 which are connected between the upper mold and the lower mold according to a figure, and closing the upper mold and the lower mold through high-temperature pressurization to form a vacuum box 3;
secondly, vacuumizing:
the upper die and the lower die are respectively provided with a vacuum-pumping port 31 which are matched with each other in a semicircular shape, the interior of the vacuum box 3 is vacuumized through the vacuum-pumping port 31 by using a vacuum-pumping machine, the high-elasticity sponge 5 is compressed under the vacuum action, and then the vacuum-pumping port 31 is sealed by using hot melt adhesive;
thirdly, putting the vacuum box 3 into the insulation board body 1:
taking out the insulation board body 1, cutting an inner groove 2 slightly larger than the vacuum box 3 in the insulation board body 1, putting the vacuum box 3 into the inner groove 2, sealing the inner groove 2, and finishing the manufacture of the insulation board.
According to the scheme, after the vacuum layer is damaged and enters air, the arranged high-elasticity sponge 5 expands, so that the circulation among air is reduced, and the heat insulation plate can continue to exert the heat insulation function.
The above; but are merely preferred embodiments of the invention; the scope of the invention is not limited thereto; any person skilled in the art is within the technical scope of the present disclosure; the technical scheme and the improved concept of the invention are equally replaced or changed; are intended to be covered by the scope of the present invention.