CN114538889A - Composite heat-insulating material and production process thereof - Google Patents
Composite heat-insulating material and production process thereof Download PDFInfo
- Publication number
- CN114538889A CN114538889A CN202111543877.1A CN202111543877A CN114538889A CN 114538889 A CN114538889 A CN 114538889A CN 202111543877 A CN202111543877 A CN 202111543877A CN 114538889 A CN114538889 A CN 114538889A
- Authority
- CN
- China
- Prior art keywords
- pressure head
- pressure
- slurry
- column
- fiber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000002131 composite material Substances 0.000 title claims abstract description 39
- 239000011810 insulating material Substances 0.000 title claims abstract description 32
- 238000004519 manufacturing process Methods 0.000 title claims description 11
- 239000000835 fiber Substances 0.000 claims abstract description 53
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims abstract description 42
- 239000003063 flame retardant Substances 0.000 claims abstract description 42
- 239000000203 mixture Substances 0.000 claims abstract description 23
- 238000000034 method Methods 0.000 claims abstract description 22
- 239000000463 material Substances 0.000 claims abstract description 17
- 230000008569 process Effects 0.000 claims abstract description 15
- 239000000843 powder Substances 0.000 claims abstract description 14
- 238000000465 moulding Methods 0.000 claims abstract description 10
- 238000011049 filling Methods 0.000 claims abstract description 8
- 239000003112 inhibitor Substances 0.000 claims abstract description 8
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 6
- 239000004816 latex Substances 0.000 claims abstract description 4
- 229920000126 latex Polymers 0.000 claims abstract description 4
- 239000002952 polymeric resin Substances 0.000 claims abstract description 4
- 229920003002 synthetic resin Polymers 0.000 claims abstract description 4
- 239000002002 slurry Substances 0.000 claims description 45
- 239000012774 insulation material Substances 0.000 claims description 17
- 238000010438 heat treatment Methods 0.000 claims description 11
- 238000002156 mixing Methods 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 239000003795 chemical substances by application Substances 0.000 claims description 8
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 239000004094 surface-active agent Substances 0.000 claims description 6
- 238000001035 drying Methods 0.000 claims description 4
- 235000019738 Limestone Nutrition 0.000 claims description 3
- 239000004962 Polyamide-imide Substances 0.000 claims description 3
- 239000000853 adhesive Substances 0.000 claims description 3
- 239000003242 anti bacterial agent Substances 0.000 claims description 3
- 238000007667 floating Methods 0.000 claims description 3
- 239000010881 fly ash Substances 0.000 claims description 3
- 239000006028 limestone Substances 0.000 claims description 3
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical group CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims description 3
- 239000012188 paraffin wax Substances 0.000 claims description 3
- 229920002312 polyamide-imide Polymers 0.000 claims description 3
- 229920000728 polyester Polymers 0.000 claims description 3
- 239000010453 quartz Substances 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 239000011347 resin Substances 0.000 claims description 3
- 230000000717 retained effect Effects 0.000 claims description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 239000003381 stabilizer Substances 0.000 claims description 3
- 230000008961 swelling Effects 0.000 claims description 3
- 239000002671 adjuvant Substances 0.000 claims 1
- 230000000181 anti-adherent effect Effects 0.000 claims 1
- 239000004014 plasticizer Substances 0.000 claims 1
- 239000011248 coating agent Substances 0.000 abstract description 14
- 238000000576 coating method Methods 0.000 abstract description 14
- 239000004793 Polystyrene Substances 0.000 abstract description 10
- 229920002223 polystyrene Polymers 0.000 abstract description 10
- 239000011449 brick Substances 0.000 abstract description 2
- 238000004080 punching Methods 0.000 abstract description 2
- 238000007789 sealing Methods 0.000 abstract description 2
- 238000009413 insulation Methods 0.000 description 13
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 6
- 238000001514 detection method Methods 0.000 description 6
- 238000004321 preservation Methods 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000005265 energy consumption Methods 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 239000004033 plastic Substances 0.000 description 4
- 229920003023 plastic Polymers 0.000 description 4
- 238000003825 pressing Methods 0.000 description 4
- 238000003763 carbonization Methods 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000011490 mineral wool Substances 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 241000512259 Ascophyllum nodosum Species 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000003712 anti-aging effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 239000002274 desiccant Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 235000011837 pasties Nutrition 0.000 description 1
- -1 phenolic aldehyde Chemical class 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 229920006389 polyphenyl polymer Polymers 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000007363 ring formation reaction Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000004227 thermal cracking Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B30/00—Compositions for artificial stone, not containing binders
- C04B30/02—Compositions for artificial stone, not containing binders containing fibrous materials
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/28—Fire resistance, i.e. materials resistant to accidental fires or high temperatures
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/10—Mortars, concrete or artificial stone characterised by specific physical values for the viscosity
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/20—Mortars, concrete or artificial stone characterised by specific physical values for the density
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/30—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values
- C04B2201/32—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values for the thermal conductivity, e.g. K-factors
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Building Environments (AREA)
Abstract
The invention discloses a composite heat-insulating material which comprises the following components in parts by weight: 30-50 parts of fiber composition, 5-10 parts of filling material, 10-20 parts of aggregate, 3-5 parts of expansion composition and 1-2 parts of auxiliary agent composition; wherein the fiber composition is a combination of gas phase flame retardant fibers or condensed phase flame retardant fibers; wherein the gas-phase flame-retardant fiber is added with an inhibitor in the fiber forming process; the condensed phase flame-retardant fiber is formed by adding a flame retardant in the fiber forming process; the filling material is one or the combination of more of re-dispersible latex powder and high polymer resin; the composite heat-insulating material provided by the invention has good strength and flame retardant property, and can be used and constructed in various ways, for example, a coating can be formed in a coating way, and a heat-insulating plate or a heat-insulating brick can be manufactured in a molding way for use; the material and time are saved, the coating is directly coated, the processes of punching ribs, sealing, bonding and the like of similar polystyrene boards are avoided, the utilization rate is high, and no leftover material exists.
Description
Technical Field
The invention relates to a heat insulation material, in particular to a composite heat insulation material.
Background
The building energy consumption accounts for a large proportion of the whole human energy consumption, and most of the building energy consumption is the energy consumption of heating and air conditioning, and the important aspect of energy conservation during heat insulation and heat preservation of buildings. The heat insulation coating is a novel functional coating developed in recent years, the heat insulation coating is used on the surface of a building to reduce the internal temperature of the building, the heat inside the building can not be easily and rapidly dissipated, and the change of the outdoor temperature can be effectively controlled by coating a layer of heat insulation coating on the outer wall or the roof of the building to play a role in heat insulation;
the existing heat-insulating materials for various walls usually adopt benzene boards, polyphenyl particle heat-insulating materials, rock wool heat-insulating boards and phenolic aldehyde heat-insulating boards, and the products and the technology have the following defects: 1. although the heat insulation effect of the polystyrene board or the extruded sheet is good, the polystyrene board or the extruded sheet has the biggest defects of poor fireproof performance and unsafe wind pressure resistance, especially low negative wind pressure resistance, of the heat insulation layer of the high-rise building; the glue for the outer sticky polystyrene board and the plastic expansion nail for fixing are made of high polymer materials, and become brittle after aging along with the passage of time, the endurance life is short, and the service performance is not as long as that of a wall body; when the heat-insulating layer is dismantled along with the building, the environmental safety of the city is greatly damaged, and the pressure of waste streams on the urban and rural environments is increased; the outer polystyrene board can not meet the construction requirement of externally pasting glazed tiles on the outer wall of a building, if a fire disaster occurs or the building exceeds 20-30 years, the adhesive and the plastic expansion nails can become hard and brittle after the service life, so that the glazed tiles attached to the outer layer fall off to cause danger, and therefore, the outer decoration of the outer polystyrene board is required to be paint in national standards and local standards. Moreover, the control degree of difficulty of this kind of heat preservation system construction quality is great, and the efficiency of construction is lower, because there is the not tight cold bridge hot bridge that appears of seam when using panel, the expansion nail of use can make wall body fracture and infiltration, influences the building quality. 2. The polystyrene particles used as the heat insulation material are prepared by crushing a polystyrene board into particles of about 20-30 meshes, adding cement and an adhesive, and mixing, wherein the heat insulation system for using the polystyrene particles as the wall heat insulation generally comprises three layers: the putty layer, the primer layer and the finish paint layer are mainly made of organic materials, and have the defects of poor heat insulation effect, poor aging performance, hydrophilicity, compression resistance, breaking strength and other performances, and can not meet the requirements of coating engineering, environmental protection and energy conservation. The rock wool insulation board is complex in production process, extremely harmful to human bodies, has the same defects as benzene boards in the aspects of strength, wind pressure resistance, construction quality control difficulty and the like, and is high in cost and difficult to accept by general users.
Disclosure of Invention
The invention provides a composite heat-insulating material, which solves the technical problems in the related art.
According to one aspect of the invention, the invention provides a composite heat-insulating material which comprises the following components in parts by weight:
30-50 parts of fiber composition, 5-10 parts of filling material, 10-20 parts of aggregate, 3-5 parts of expansion composition and 1-2 parts of auxiliary agent composition;
wherein the fiber composition is a combination of gas phase flame retardant fibers or condensed phase flame retardant fibers;
wherein the gas-phase flame-retardant fiber is added with an inhibitor in the fiber forming process;
the condensed phase flame-retardant fiber is formed by adding a flame retardant in the fiber forming process;
the filling material is one or the combination of more of re-dispersible latex powder and high polymer resin;
the aggregate is one or a combination of more of quartz powder, limestone powder and fly ash;
the expansion composition is one or two of herba Zosterae Marinae powder and swelling resin.
Further, the gas-phase flame-retardant fiber is polyester fiber added with an inhibitor.
Further, the condensed phase flame retardant fiber is polyamide-imide fiber added with a flame retardant.
Further, the auxiliary agent composition is a combination of a surfactant, an antibacterial agent, an anti-sticking agent, a plastic stabilizer and a water-retaining agent.
Further, the surfactant is stearate; the anti-sticking agent adopts paraffin.
According to one aspect of the invention, a production process of a composite heat insulation material is provided, which comprises the following steps:
s1, mixing the composite heat-insulating material with the predetermined components with water to prepare slurry;
s2, injecting the slurry into a moulding box with a preset shape;
s3, inserting a pressure bearing column into the slurry in the mould box; the difference between the average density of the load-bearing column and the density of the slurry is less than 10kg/m3；
The pressure-bearing column is suspended in the slurry in the mould box, the distance between the top of the pressure-bearing column and the top surface of the slurry in the mould box is more than 3cm, and the distance between the bottom of the pressure-bearing column and the bottom surface of the slurry in the mould box is more than 3 cm;
and S4, drying to obtain the block-shaped heat-insulating material.
Further, the weight ratio of the composite heat-insulating material to water in the mixing of the composite heat-insulating material and water is 1: 1.2.
Furthermore, the equipment adopted for inserting the bearing column into the slurry in the mold box in the step S3 includes a vibration table, a mold box and a pressure head assembly, the mold box is arranged above the vibration table, the pressure head assembly is arranged above the mold box, the mold box is arranged on a lower slide seat, the pressure head assembly is arranged on an upper slide seat, the lower slide seat and the upper slide seat are both connected with a guide rod through a guide sleeve, and the guide rod is fixedly mounted on the frame; the lower sliding seat is connected with a telescopic rod of a demoulding oil cylinder, a cylinder body of the demoulding oil cylinder is fixedly arranged at the bottom of the frame, the upper sliding seat is connected with a telescopic rod of a pressure head oil cylinder, and the cylinder body of the pressure head oil cylinder is fixedly arranged at the top of the frame; a die cavity is arranged on the die box, and a pressure head of the pressure head assembly is matched with the die cavity;
the pressure head assembly comprises a pressure head, a pressure head seat, a column inserting plate and a push rod oil cylinder, wherein the pressure head is arranged at the bottom of the pressure head seat, the pressure head seat is connected with a guide rod through a guide sleeve, a column hole vertically penetrating through the pressure head is formed in the pressure head, and a bearing column is placed in the column hole;
a column inserting plate is arranged above the pressure head seat, a plurality of push rods penetrating through the pressure head seat and the pressure head are arranged at the bottom of the column inserting plate, the top of the column inserting plate is connected with a piston rod of a push rod oil cylinder, and a cylinder body of the push rod oil cylinder is fixedly arranged on the upper sliding seat; a spring is arranged between the pressure head seat and the upper sliding seat, and the upper end and the lower end of the spring are respectively connected with the pressure head and the upper sliding seat;
after the slurry is filled into the mold box, the pressure head oil cylinder pushes the pressure head cross beam downwards, the pressure head falls onto the mold box along the guide rod through the upper sliding seat, the piston rod of the push rod oil cylinder extends out to push the inserted column plate to move downwards, the push rod pushes the pressure bearing column in the pressure head into the slurry below the pressure head, the moving distance of the inserted column plate is controlled to insert the pressure bearing column into a proper depth, the push rod oil cylinder drives the inserted column plate to move upwards for a certain distance to enable the bottom surface of the push rod to be flush with the bottom surface of the pressure head, then the pressure head oil cylinder continues to move downwards to enable the bottom of the pressure head to give the pressure of the slurry in the mold box, the vibrating table and the vibration exciter provide vibration to tightly compress the slurry, the density setting of the pressure bearing column is close to the density setting of the slurry, and the density setting of the pressure bearing column is just close to the slurry so as to avoid the upward floating or downward moving of the pressure bearing column due to the density difference during vibration, and the pressure bearing column can be kept at the inserted position.
Further, heating units are arranged in the pressure head and the die box, the bottom surface and four side surfaces of the die box are respectively provided with the heating units, and the heating units of the pressure head and the bottom surface of the die box are started after the pressure bearing columns are inserted into the slurry.
Furthermore, the post hole and the pressure-bearing post interference fit of pressure head, pressure-bearing post can be detained in the post is downthehole after inserting the pressure head.
The invention has the beneficial effects that:
the composite heat-insulating material provided by the invention has good strength and flame retardant property, and can be used and constructed in various ways, for example, a coating can be formed in a coating way, and a heat-insulating plate or a heat-insulating brick can be manufactured in a molding way for use; the material and time are saved, the coating is directly coated, the processes of punching ribs, sealing, bonding and the like of similar polystyrene boards are avoided, the utilization rate is high, and no leftover materials exist;
the main raw materials of the invention are ultra-light inorganic materials, the performance is stable and firm, the interface is brushed uniformly, the coating and drying are carried out to form compact contact with the wall, no cold bridge and heat bridge are generated, no chemical reaction is carried out with the wall, the strength is high, the coating and drying agent is not deformed, does not crack, is not hollowly bulged, does not fall off, does not frost in winter, does not get damp in summer, has good anti-aging performance, and has the same service life as the wall;
the product is produced and stored in a loose powder form, is stirred by adding water to be pasty and is smeared on outer and inner wall bodies, is not limited by the shape and position, and is simple and convenient to construct without using auxiliary materials.
Drawings
FIG. 1 is a schematic flow chart of a production process of a composite heat insulating material according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of a molding apparatus in a process for producing a composite heat insulating material according to an embodiment of the present invention;
fig. 3 is a schematic structural view of a ram assembly of a molding apparatus of a production process of a composite heat insulating material according to an embodiment of the present invention.
In the figure: the device comprises a vibrating table 100, a mould box 110, a pressure head assembly 120, a lower slide seat 130, an upper slide seat 140, a guide rod 150, a demoulding oil cylinder 160, a spring 170, a pressure head oil cylinder 180, a pressure head 121, a pressure head seat 122, a column inserting plate 123 and a push rod oil cylinder 124.
Detailed Description
The subject matter described herein will now be discussed with reference to example embodiments. It should be understood that these embodiments are discussed only to enable those skilled in the art to better understand and thereby implement the subject matter described herein, and are not intended to limit the scope, applicability, or examples set forth in the claims. Changes may be made in the function and arrangement of elements discussed without departing from the scope of the disclosure. Various examples may omit, substitute, or add various procedures or components as needed. For example, the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. In addition, features described with respect to some examples may also be combined in other examples.
The embodiment provides a composite heat-insulating material which comprises the following components in parts by weight:
30-50 parts of fiber composition, 5-10 parts of filling material, 10-20 parts of aggregate, 3-5 parts of expansion composition and 1-2 parts of auxiliary agent composition;
wherein the fiber composition is a combination of gas phase flame retardant fibers or condensed phase flame retardant fibers;
wherein the gas-phase flame-retardant fiber is added with an inhibitor in the fiber forming process; a small amount of inhibitor is added, a large amount of light free radicals and hydrogen free radicals are captured in a flame zone, the concentration of the free radicals is reduced, and therefore, the chain reaction of combustion is inhibited or interrupted, and the flame retardant effect is exerted in a gas phase;
the condensed phase flame-retardant fiber is formed by adding a flame retardant in the fiber forming process; through the action of the flame retardant, the thermal cracking reaction process of a fiber macromolecular chain is changed in a condensed phase reaction zone, and the reactions such as dehydration, condensation, cyclization, crosslinking and the like are promoted to occur until carbonization is carried out, so that the carbonization residue is increased, the generation of combustible gas is reduced, and the flame retardant plays a flame retardant role in the condensed phase;
in the embodiment, the combination of the gas-phase flame-retardant fibers and the condensed-phase flame-retardant fibers is adopted as the fiber component, the structure of the fiber component can play a role in compact heat preservation, and meanwhile, the heat preservation material generally only needs to consider the condition of external flame combustion, so that the composition of the gas-phase flame-retardant fibers and the condensed-phase flame-retardant fibers is designed, wherein the gas-phase flame-retardant fibers reduce the concentration of free radicals in the process of encountering flame to reduce the carbonization speed of the condensed-phase flame-retardant fibers, so that a heat preservation layer formed by the heat preservation material can gradually form a compact carbonized layer on the surface to prevent the combustion from proceeding.
Specifically, optionally, the gas-phase flame-retardant fibers are polyester fibers added with an inhibitor;
the condensed phase flame-retardant fiber is polyamide-imide fiber added with a flame retardant;
the filling material is one or the combination of more of re-dispersible latex powder and high polymer resin;
the aggregate is one or a combination of more of quartz powder, limestone powder and fly ash;
the expansion composition is one or two of kelp powder and swelling resin;
the auxiliary agent composition is a combination of a surfactant, an antibacterial agent, an anti-sticking agent, a plastic stabilizer and a water-retaining agent;
the surfactant is stearate; the anti-sticking agent adopts paraffin;
table 1 shows the amounts of each component provided in this example;
TABLE 1
Test pieces are prepared according to the mixing amount in the table 1 for detection, and the detection results are as follows;
the detection is carried out according to the method and the standard of the national standard GBT20473-2006 building thermal insulation mortar, and the test piece is made of the composite thermal insulation material with the mixing amount in the embodiment 1; the detection results are shown in table 2;
TABLE 2
Further, the flame retardant property of the composite type heat-insulating material is detected according to GB/T5464-1999 test method for noninflammability of building materials, and the detection results are shown in Table 3, wherein samples 1-5 respectively correspond to samples prepared from the composite type heat-insulating materials of the mixing amount of examples 1-5 in Table 1;
TABLE 3
The results in Table 3 show that the composite heat-insulating material of examples 1-5 has low sample loss rate, low surface temperature rise and central temperature rise, and good non-combustibility after detection.
As shown in fig. 1, based on the composite thermal insulation material, the embodiment further provides a production process of the composite thermal insulation material, which specifically includes the following steps:
s1, mixing the composite heat-insulating material with the predetermined components with water to prepare slurry;
s2, injecting the slurry into a moulding box with a preset shape;
s3, inserting a pressure bearing column into the slurry in the mould box; the difference between the average density of the load-bearing column and the density of the slurry is less than 10kg/m3；
The pressure-bearing column is suspended in the slurry in the mould box, the distance between the top of the pressure-bearing column and the top surface of the slurry in the mould box is more than 3cm, and the distance between the bottom of the pressure-bearing column and the bottom surface of the slurry in the mould box is more than 3 cm;
and S4, drying to obtain the block-shaped heat-insulating material.
The weight ratio of the composite heat-insulating material to water in the mixing of the composite heat-insulating material and water is 1: 1.2;
the block-shaped heat insulation material with the pressure-bearing column arranged inside can be manufactured by molding and processing through the arrangement of the pressure-bearing column, and the compression strength of the block-shaped heat insulation material can be improved due to the fact that the heat insulation material takes the effects of heat insulation and the like into consideration;
the pressure-bearing columns can be vertically or/and horizontally arranged, so that the bearing capacity of the pressure in each direction can be improved;
compared with a test piece made of the composite heat-insulating material in the mixed amount in the embodiment 1, the method for independently vertically arranging the pressure-bearing columns has the advantages that the compressive strength is improved to 1.35MPa, and the compressive strength is obviously improved;
as shown in fig. 2-3, since the setting of the pressure-bearing column needs to be controlled, the embodiment provides a molding apparatus supporting the application of the above method, including a vibration table 100, a mold box 110 and a ram assembly 120, the mold box 110 is disposed above the vibration table 100, the ram assembly 120 is disposed above the mold box 110, the mold box 110 is disposed on a lower slide 130, the ram assembly 120 is disposed on an upper slide 140, the lower slide 130 and the upper slide 140 are both connected to a guide rod 150 through guide sleeves, and the guide rod 150 is fixedly mounted on a rack; the lower slide 130 is connected with the telescopic rod of the demoulding oil cylinder 160, the cylinder body of the demoulding oil cylinder 160 is fixedly arranged at the bottom of the frame, the upper slide 140 is connected with the telescopic rod of the pressure head oil cylinder 180, and the cylinder body of the pressure head oil cylinder 180 is fixedly arranged at the top of the frame. A cavity is arranged on the mold box 110, and a pressure head 121 of the pressure head assembly 120 is matched with the cavity;
the pressure head assembly 120 comprises a pressure head 121, a pressure head seat 122, a column inserting plate 123 and a push rod oil cylinder 124, wherein the pressure head 121 is arranged at the bottom of the pressure head seat 122, the pressure head seat 122 is connected with the guide rod 150 through a guide sleeve, a column hole vertically penetrating through the pressure head 121 is formed in the pressure head 121, and a pressure bearing column is placed in the column hole;
a column inserting plate 123 is arranged above the pressure head base 122, a plurality of push rods penetrating through the pressure head base 122 and the pressure head 121 are arranged at the bottom of the column inserting plate 123, the top of the column inserting plate 123 is connected with a piston rod of a push rod oil cylinder 124, and a cylinder body of the push rod oil cylinder 124 is fixedly arranged on the upper sliding base 140; a spring 170 is arranged between the pressing head seat 122 and the upper sliding seat 140, and the upper end and the lower end of the spring 170 are respectively connected with the pressing head 121 and the upper sliding seat 140.
After the slurry is filled into the mold box 110, the ram cylinder 180 pushes the ram 121 to move downward, the ram 121 is dropped onto the mold box 110 along the guide rod 150 by the upper slide 140, then the piston rod of the push rod cylinder 124 extends out to push the plunger plate 123 to move downward, the push rod pushes the pressure-bearing column in the ram 121 into the slurry below the ram 121, the moving distance of the plunger plate 123 is controlled to insert the pressure-bearing column to a proper depth, then the push rod cylinder 124 drives the plunger plate 123 to move upward for a certain distance to make the bottom surface of the push rod flush with the bottom surface of the ram 121, then the ram cylinder 180 continues to move downward to make the bottom of the ram 121 apply pressure to the slurry in the mold box 110 (according to the requirement of block shape and compactness, the pressure reducing valve on the valve plate of the hydraulic pump station can be adjusted to increase or decrease the pressure of the ram 121), the vibration table 100 and the vibration exciter provide vibration to compact the slurry, the density of the pressure-bearing column is set close to the density of the slurry to avoid the pressure-bearing column from floating up or moving downward due to the density difference when the vibration, enabling it to remain in the inserted position.
Then, when the mold is released, the stripper cylinder 160 pushes the lower slide 130 upwards, the mold box 110 is pulled upwards along the guide rod 150 by the lower slide 130, the press head 121 still presses the upper side of the block during the mold releasing process to balance the mold releasing force, after the formed block is completely separated from the mold box 110, the press head 121 returns upwards to the upper position, and then the push rod cylinder 124 drives the plunger plate 123 to reset.
Further, in this embodiment, heating units are disposed in the pressing head 121 and the mold box 110, the bottom surface and four side surfaces of the mold box 110 are provided with the heating units, after the pressure-bearing column is inserted into the slurry, the heating unit of the pressing head 121 and the heating unit of the bottom surface of the mold box 110 are started, the upper layer and the lower layer of the slurry are heated and dried to increase the local viscosity, and the pressure-bearing column is further prevented from moving in the process of the slurry being vibrated.
In this embodiment, the post hole of the pressure head 121 is interference-fitted with a pressure-bearing post, which can be retained in the post hole after being inserted into the pressure head 121. Another alternative is to arrange a rubber sleeve in the column hole of the pressure head 121, and keep the pressure-bearing column retained in the column hole by the elasticity of the rubber sleeve, and keep the push rod pushing it out.
In this embodiment, the bottom of the vibration table 100 is provided with an exciter connected thereto.
In this embodiment, the above apparatus further comprises a feeding device for injecting the slurry into the molding box 110, a feeding device for placing the pressure bearing columns into the ram 121, and a taking device for moving the molded product. Wherein the feeding device can be a pump, and the feeding device and the taking device can be mechanical arms.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solution of the present embodiment or portions thereof contributing to the prior art may be embodied in the form of a software product, which is stored in a storage medium (e.g. ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (e.g. a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method of the embodiments.
In the description of the present invention, it is to be understood that the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above should not be understood to necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
The embodiments of the present invention have been described with reference to the drawings, but the present invention is not limited to the above-mentioned specific embodiments, which are only illustrative and not restrictive, and those skilled in the art can make many forms without departing from the spirit and scope of the present invention and the protection scope of the claims.
Claims (10)
1. The composite heat-insulating material is characterized by comprising the following components in parts by weight:
30-50 parts of fiber composition, 5-10 parts of filling material, 10-20 parts of aggregate, 3-5 parts of expansion composition and 1-2 parts of auxiliary agent composition;
wherein the fiber composition is a combination of gas phase flame retardant fibers or condensed phase flame retardant fibers;
wherein the gas-phase flame-retardant fiber is added with an inhibitor in the fiber forming process;
the condensed phase flame-retardant fiber is formed by adding a flame retardant in the fiber forming process;
the filling material is one or the combination of more of re-dispersible latex powder and high polymer resin;
the aggregate is one or a combination of more of quartz powder, limestone powder and fly ash;
the expansion composition is one or two of herba Zosterae Marinae powder and swelling resin.
2. The composite thermal insulation material as claimed in claim 1, wherein the gas-phase flame-retardant fiber is polyester fiber added with an inhibitor.
3. The composite thermal insulation material as claimed in claim 1, wherein the condensed phase flame retardant fiber is polyamide-imide fiber added with flame retardant.
4. A composite thermal insulation material as claimed in claim 1, wherein the adjuvant composition is a combination of a surfactant, an antibacterial agent, an anti-adhesive agent, a plasticizer stabilizer, and a water retention agent.
5. The composite thermal insulation material as claimed in claim 4, wherein the surfactant is stearate; the anti-sticking agent adopts paraffin.
6. The production process of the composite heat-insulating material is characterized by comprising the following steps of:
s1, mixing the composite heat-insulating material with the predetermined components with water to prepare slurry;
s2, injecting the slurry into a moulding box with a preset shape;
s3, inserting a pressure bearing column into the slurry in the mould box; the difference between the average density of the load-bearing column and the density of the slurry is less than 10kg/m3；
The pressure-bearing column is suspended in the slurry in the mould box, the distance between the top of the pressure-bearing column and the top surface of the slurry in the mould box is more than 3cm, and the distance between the bottom of the pressure-bearing column and the bottom surface of the slurry in the mould box is more than 3 cm;
and S4, drying to obtain the block-shaped heat-insulating material.
7. The production process of the composite heat-insulating material according to claim 6, wherein the weight ratio of the composite heat-insulating material to water in the mixing of the composite heat-insulating material and water is 1: 1.2.
8. The production process of a composite thermal insulation material according to claim 1, wherein the equipment used for inserting the bearing column into the slurry in the mold box in the step S3 comprises a vibration table, a mold box and a pressure head assembly, the mold box is arranged above the vibration table, the pressure head assembly is arranged above the mold box, the mold box is arranged on a lower slide seat, the pressure head assembly is arranged on an upper slide seat, the lower slide seat and the upper slide seat are both connected with a guide rod through a guide sleeve, and the guide rod is fixedly arranged on a frame; the lower sliding seat is connected with a telescopic rod of a demoulding oil cylinder, a cylinder body of the demoulding oil cylinder is fixedly arranged at the bottom of the frame, the upper sliding seat is connected with a telescopic rod of a pressure head oil cylinder, and the cylinder body of the pressure head oil cylinder is fixedly arranged at the top of the frame; a die cavity is arranged on the die box, and a pressure head of the pressure head assembly is matched with the die cavity;
the pressure head assembly comprises a pressure head, a pressure head seat, a column inserting plate and a push rod oil cylinder, wherein the pressure head is arranged at the bottom of the pressure head seat, the pressure head seat is connected with a guide rod through a guide sleeve, a column hole vertically penetrating through the pressure head is formed in the pressure head, and a bearing column is placed in the column hole;
a column inserting plate is arranged above the pressure head seat, a plurality of push rods penetrating through the pressure head seat and the pressure head are arranged at the bottom of the column inserting plate, the top of the column inserting plate is connected with a piston rod of a push rod oil cylinder, and a cylinder body of the push rod oil cylinder is fixedly arranged on the upper sliding seat; a spring is arranged between the pressure head seat and the upper sliding seat, and the upper end and the lower end of the spring are respectively connected with the pressure head and the upper sliding seat;
after the slurry is filled into the mold box, the pressure head oil cylinder pushes the pressure head cross beam downwards, the pressure head falls onto the mold box along the guide rod through the upper sliding seat, then the piston rod of the push rod oil cylinder extends out to push the inserting column plate to move downwards, the push rod pushes the pressure bearing column in the pressure head into the slurry below the pressure head, the moving distance of the inserting column plate is controlled to insert the pressure bearing column into a proper depth, then the push rod oil cylinder drives the inserting column plate to move upwards for a certain distance to enable the bottom surface of the push rod to be flush with the bottom surface of the pressure head, then the pressure head oil cylinder continues to move downwards to enable the bottom of the pressure head to apply pressure to the slurry in the mold box, the vibration table and the vibration exciter provide vibration to tightly press the slurry tightly, the density setting of the pressure bearing column is close to the density setting of the slurry, and the density setting of the pressure bearing column is just for avoiding the upward floating or downward movement of the pressure bearing column due to density difference during vibration, and the pressure bearing column can be kept at the inserted position.
9. The process for producing a composite type thermal insulation material according to claim 1, wherein heating units are provided in the ram and the mold box, heating units are provided on the bottom surface and four side surfaces of the mold box, and the heating units of the ram and the bottom surface of the mold box are activated after the pressure-bearing pillars are inserted into the slurry.
10. The production process of the composite thermal insulation material as claimed in claim 1, wherein the column hole of the pressure head is in interference fit with the pressure-bearing column, and the pressure-bearing column can be retained in the column hole after being inserted into the pressure head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111543877.1A CN114538889A (en) | 2021-12-16 | 2021-12-16 | Composite heat-insulating material and production process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111543877.1A CN114538889A (en) | 2021-12-16 | 2021-12-16 | Composite heat-insulating material and production process thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114538889A true CN114538889A (en) | 2022-05-27 |
Family
ID=81670369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111543877.1A Pending CN114538889A (en) | 2021-12-16 | 2021-12-16 | Composite heat-insulating material and production process thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114538889A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103950251A (en) * | 2014-04-10 | 2014-07-30 | 浙江华江科技发展有限公司 | Formula and preparation technology of light fiber-reinforced thermoplastic resin composite sheet material with high flame resistance |
| CN107352886A (en) * | 2017-08-18 | 2017-11-17 | 苏州格瑞格登新材料科技有限公司 | A kind of heat insulating energy saving material and preparation method thereof |
| CN107857541A (en) * | 2017-10-27 | 2018-03-30 | 广西横县恒丰建材有限责任公司 | The production method of waterproof and insulation integrated slip casting filling mortar |
| CN109624030A (en) * | 2019-01-16 | 2019-04-16 | 安徽佳乐建设机械有限公司 | A kind of U-shaped Water gutter shaping machine and its method |
| CN109942982A (en) * | 2017-12-21 | 2019-06-28 | 洛阳尖端技术研究院 | A kind of composite material and preparation method |
| CN110218072A (en) * | 2019-05-20 | 2019-09-10 | 贵州开磷磷石膏综合利用有限公司 | Autoclave aerated concrete building block/plate and preparation method containing new type mortar |
| WO2021068283A1 (en) * | 2019-04-29 | 2021-04-15 | 西安银马实业发展有限公司 | Brick forming machine, application thereof and brick forming method |
-
2021
- 2021-12-16 CN CN202111543877.1A patent/CN114538889A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103950251A (en) * | 2014-04-10 | 2014-07-30 | 浙江华江科技发展有限公司 | Formula and preparation technology of light fiber-reinforced thermoplastic resin composite sheet material with high flame resistance |
| CN107352886A (en) * | 2017-08-18 | 2017-11-17 | 苏州格瑞格登新材料科技有限公司 | A kind of heat insulating energy saving material and preparation method thereof |
| CN107857541A (en) * | 2017-10-27 | 2018-03-30 | 广西横县恒丰建材有限责任公司 | The production method of waterproof and insulation integrated slip casting filling mortar |
| CN109942982A (en) * | 2017-12-21 | 2019-06-28 | 洛阳尖端技术研究院 | A kind of composite material and preparation method |
| CN109624030A (en) * | 2019-01-16 | 2019-04-16 | 安徽佳乐建设机械有限公司 | A kind of U-shaped Water gutter shaping machine and its method |
| WO2021068283A1 (en) * | 2019-04-29 | 2021-04-15 | 西安银马实业发展有限公司 | Brick forming machine, application thereof and brick forming method |
| CN110218072A (en) * | 2019-05-20 | 2019-09-10 | 贵州开磷磷石膏综合利用有限公司 | Autoclave aerated concrete building block/plate and preparation method containing new type mortar |
Non-Patent Citations (1)
| Title |
|---|
| 于涛主编: "《纺织用染化料性能评价及检测》", 31 January 2020, 中国纺织出版社有限公司 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20150010750A1 (en) | Inorganic fireproof and heat-insulating material and article thereof | |
| CN103467058B (en) | Method for preparing waterproof, antifouling, environment-friendly and flame retardant insulation board by using pitchstone beads | |
| CN102060470B (en) | Expanded vitrified micro-bead fireproof thermal-insulation board and preparation method thereof | |
| CN103306385B (en) | A kind of construction method of inorganic fire building heat insulation system | |
| CA2980948C (en) | A construction board and a method of manufacture | |
| CN101172831A (en) | Energy-saving insulating brick | |
| CN109956726B (en) | Raw material composition and flexible heat-insulation board | |
| CN110627443A (en) | Preparation method of regenerative composite building thermal insulation material | |
| CN111517708A (en) | Graphite modified polystyrene inorganic insulation board and preparation method thereof | |
| CN111411795B (en) | Waterproof energy-saving integrated system for old roof reconstruction | |
| CN109912285B (en) | Manufacturing process of flexible heat-insulation board | |
| CN101342725A (en) | Method for manufacturing thermal insulation fire-proof board with foaming ceramic fine bead and product thereof | |
| CN106631120A (en) | Straw-fiber and shale sintered microporous material and preparation method thereof | |
| CN114538889A (en) | Composite heat-insulating material and production process thereof | |
| CN111021666B (en) | Floor heating module and preparation method thereof | |
| CN111851870A (en) | Building roof waterproof and heat insulation integrated super-hydrophobic particle, and preparation method and application thereof | |
| CN104876514A (en) | Novel inorganic heat-insulation fire-proof board and manufacturing method thereof | |
| CN109881884B (en) | Reinforced building disassembly-free heat preservation template and preparation method thereof | |
| KR19990001003A (en) | Pyrogenic cement mortar or concrete composition, heating element and method of manufacturing the same | |
| CN111718162A (en) | Fiber-reinforced foamed cement composite insulation board and preparation method thereof | |
| CN114455875B (en) | Modified polyurethane aggregate and cement-based lightweight concrete board prepared from same | |
| CN102383501B (en) | Embedded type aerated concrete composite outer wall heat insulation board | |
| CN114890743A (en) | Green building material with good heat preservation performance and preparation method thereof | |
| CN211447622U (en) | Floor heating module | |
| CN108033764A (en) | A kind of sound-insulating and heat-insulating aerogel foam composite material and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20220527 |