CN114031809A - Preparation method of flame-retardant, heat-insulating and sound-absorbing sponge - Google Patents
Preparation method of flame-retardant, heat-insulating and sound-absorbing sponge Download PDFInfo
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- CN114031809A CN114031809A CN202111316784.5A CN202111316784A CN114031809A CN 114031809 A CN114031809 A CN 114031809A CN 202111316784 A CN202111316784 A CN 202111316784A CN 114031809 A CN114031809 A CN 114031809A
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- 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 title claims abstract description 31
- 239000003063 flame retardant Substances 0.000 title claims abstract description 31
- 238000002360 preparation method Methods 0.000 title claims abstract description 31
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 claims abstract description 46
- 239000004964 aerogel Substances 0.000 claims abstract description 35
- 238000003756 stirring Methods 0.000 claims abstract description 31
- 229920002451 polyvinyl alcohol Polymers 0.000 claims abstract description 21
- 239000002202 Polyethylene glycol Substances 0.000 claims abstract description 20
- 239000004372 Polyvinyl alcohol Substances 0.000 claims abstract description 20
- 229920001223 polyethylene glycol Polymers 0.000 claims abstract description 20
- 239000003607 modifier Substances 0.000 claims abstract description 19
- 239000000126 substance Substances 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims abstract description 12
- 238000009413 insulation Methods 0.000 claims abstract description 11
- 238000010438 heat treatment Methods 0.000 claims description 36
- 239000000203 mixture Substances 0.000 claims description 30
- 239000000017 hydrogel Substances 0.000 claims description 9
- 239000011259 mixed solution Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 abstract description 7
- 238000010521 absorption reaction Methods 0.000 abstract description 4
- 239000012774 insulation material Substances 0.000 abstract description 4
- 239000006260 foam Substances 0.000 abstract description 3
- 239000000843 powder Substances 0.000 abstract description 2
- 235000019422 polyvinyl alcohol Nutrition 0.000 description 14
- 230000000694 effects Effects 0.000 description 6
- 238000004140 cleaning Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 229920003043 Cellulose fiber Polymers 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/36—After-treatment
- C08J9/40—Impregnation
- C08J9/42—Impregnation with macromolecular compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
- B29C44/04—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles consisting of at least two parts of chemically or physically different materials, e.g. having different densities
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
- B29C44/3415—Heating or cooling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
- B29C44/3442—Mixing, kneading or conveying the foamable material
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/36—After-treatment
- C08J9/40—Impregnation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2300/00—Characterised by the use of unspecified polymers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2429/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal, or ketal radical; Hydrolysed polymers of esters of unsaturated alcohols with saturated carboxylic acids; Derivatives of such polymer
- C08J2429/02—Homopolymers or copolymers of unsaturated alcohols
- C08J2429/04—Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2471/00—Characterised by the use of polyethers obtained by reactions forming an ether link in the main chain; Derivatives of such polymers
- C08J2471/02—Polyalkylene oxides
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
- C08K3/36—Silica
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Silicon Compounds (AREA)
Abstract
The invention belongs to the technical field of sponge preparation, and particularly relates to a preparation method of a flame-retardant, heat-insulating and sound-absorbing sponge, which comprises the following specific preparation components of 60-80 parts of aerogel block, 5-7 parts of polyethylene glycol, 3-5 parts of polyvinyl alcohol, 1.5-2.5 parts of modifier, 80-100 parts of porous sponge and 20-30 parts of silica sol; the preparation method of the flame-retardant heat-insulation sound-absorbing sponge comprises the following specific steps: the method comprises the following steps: a container is taken, polyethylene glycol and polyvinyl alcohol are poured into the container, the two substances are continuously mixed and stirred for 8-10 minutes through a stirring device, the melted aerogel block is completely wrapped outside the porous sponge, so that the foam and the aerogel are perfectly combined, the container has excellent flame retardance, sound absorption, heat insulation and high temperature resistance, the processing performance is excellent, the VOC is low, the powder does not fall, and the container can be used as a good fireproof material, a buffer material, a heat insulation material, a sound insulation material and a high temperature resistance material to be applied to a terminal product.
Description
Technical Field
The invention relates to the technical field of sponge preparation, in particular to a preparation method of a flame-retardant, heat-insulating and sound-absorbing sponge.
Background
Sponges are very common porous materials with good water absorption, partly with good elasticity, recovery from deformation etc. and can be used for cleaning articles or for producing soft and comfortable cushions.
Sponges commonly used by people are made of wood cellulose fibers or foamed plastic polymers. In addition, there are also natural sponges made of sponge animals, and most of the natural sponges are used for body cleaning or painting. In addition, there are three types of synthetic sponges made of other materials, low density polyethers, polyvinyl alcohols, and polyesters, respectively.
At present, sponge in the market has the characteristics of poor flame retardant effect, poor sound absorption effect, poor heat insulation effect and insufficient high temperature resistance in the use process, so that a large amount of smoke and dust generated by fire easily pollute the air environment when the sponge is used, heat transmission cannot be effectively blocked, and the sponge is inconvenient to use.
Disclosure of Invention
The invention aims to provide a preparation method of a flame-retardant, heat-insulating and sound-absorbing sponge, which aims to solve the problems of poor flame-retardant effect, poor sound-absorbing effect, poor heat-insulating effect and insufficient high-temperature resistance of the sponge in the market in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the preparation method of the flame-retardant, heat-insulating and sound-absorbing sponge comprises the specific preparation components of 60-80 parts of aerogel block, 5-7 parts of polyethylene glycol, 3-5 parts of polyvinyl alcohol, 1.5-2.5 parts of modifier, 80-100 parts of porous sponge and 20-30 parts of silica sol;
the preparation method of the flame-retardant heat-insulation sound-absorbing sponge comprises the following specific steps:
the method comprises the following steps: taking a container, pouring polyethylene glycol and polyvinyl alcohol into the container, and continuously mixing and stirring the two substances for 8-10 minutes by using a stirring device until the two substances are completely and uniformly stirred for later use;
step two: pouring the aerogel blocks into the mixture obtained in the step one, continuously heating the mixture by using a heating device, adjusting the temperature of the heating device to be 30-40 ℃, adding the aerogel blocks into the mixture when the temperature of the mixture is raised to be 20-30 ℃, continuously mixing and stirring the aerogel blocks by using a stirring device, continuously adjusting the temperature of the heating device to be 40-50 ℃, continuously heating the mixture to be 20-30 ℃, and adjusting the temperature of the heating device to be 10-15 ℃ after the added aerogel blocks are completely dissolved;
step three: adding the silica sol into the mixed solution obtained in the second step, continuously mixing and stirring for 10-15 minutes until the silica sol is completely mixed to obtain the silica sol;
step four: and (5) pouring the porous sponge into the silica sol obtained in the third step, adding a modifier, taking out the porous sponge after the silica sol is completely attached to the outer wall of the porous sponge, and airing for 20-24 hours at normal temperature to complete the preparation.
Preferably, the specific preparation components of the flame-retardant, heat-insulating and sound-absorbing sponge comprise 60 parts of hydrogel block, 5 parts of polyethylene glycol, 3 parts of polyvinyl alcohol, 1.5 parts of modifier, 80 parts of porous sponge and 20 parts of silica sol.
Preferably, the flame-retardant, heat-insulating and sound-absorbing sponge comprises 70 parts of hydrogel block, 6 parts of polyethylene glycol, 4 parts of polyvinyl alcohol, 2 parts of modifier, 90 parts of porous sponge and 25 parts of silica sol.
Preferably, the specific preparation components of the flame-retardant, heat-insulating and sound-absorbing sponge comprise 80 parts of hydrogel block, 7 parts of polyethylene glycol, 5 parts of polyvinyl alcohol, 2.5 parts of modifier, 100 parts of porous sponge and 30 parts of silica sol.
Preferably, the diameter of the aerogel block is controlled to be 2-3cm, and after the silica sol is attached to the outer part of the porous sponge, the airing environment needs to be controlled to be 20-30 ℃.
Compared with the prior art, the invention has the beneficial effects that:
in the preparation method, the melted aerogel blocks are completely wrapped outside the porous sponge, so that the foamed sponge and the aerogel are perfectly combined, the foam has excellent flame retardance, sound absorption, heat insulation and high temperature resistance, the processing performance is excellent, the VOC is low, the powder is not dropped, and the foam can be used as a good fireproof material, a buffer material, a heat insulation material, a sound insulation material and a high temperature resistant material to be applied to terminal products.
Drawings
FIG. 1 is a flow chart of the steps of the preparation method of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Example (b):
referring to fig. 1, the present invention provides a technical solution: the preparation method of the flame-retardant, heat-insulating and sound-absorbing sponge comprises the specific preparation components of 60-80 parts of aerogel block, 5-7 parts of polyethylene glycol, 3-5 parts of polyvinyl alcohol, 1.5-2.5 parts of modifier, 80-100 parts of porous sponge and 20-30 parts of silica sol;
the preparation method of the flame-retardant heat-insulation sound-absorbing sponge comprises the following specific steps:
the method comprises the following steps: taking a container, pouring polyethylene glycol and polyvinyl alcohol into the container, and continuously mixing and stirring the two substances for 8-10 minutes by using a stirring device until the two substances are completely and uniformly stirred for later use;
step two: pouring the aerogel blocks into the mixture obtained in the step one, continuously heating the mixture by using a heating device, adjusting the temperature of the heating device to be 30-40 ℃, adding the aerogel blocks into the mixture when the temperature of the mixture is raised to be 20-30 ℃, continuously mixing and stirring the aerogel blocks by using a stirring device, continuously adjusting the temperature of the heating device to be 40-50 ℃, continuously heating the mixture to be 20-30 ℃, and adjusting the temperature of the heating device to be 10-15 ℃ after the added aerogel blocks are completely dissolved;
step three: adding the silica sol into the mixed solution obtained in the second step, continuously mixing and stirring for 10-15 minutes until the silica sol is completely mixed to obtain the silica sol;
step four: pouring the porous sponge into the silica sol obtained in the third step, adding the modifier, taking out the porous sponge after the silica sol is completely attached to the outer wall of the porous sponge, airing at normal temperature for 20-24 hours, and finishing preparation.
The flame-retardant, heat-insulating and sound-absorbing sponge comprises 60 parts of hydrogel block, 5 parts of polyethylene glycol, 3 parts of polyvinyl alcohol, 1.5 parts of modifier, 80 parts of porous sponge and 20 parts of silica sol.
The flame-retardant, heat-insulating and sound-absorbing sponge comprises 70 parts of hydrogel block, 6 parts of polyethylene glycol, 4 parts of polyvinyl alcohol, 2 parts of modifier, 90 parts of porous sponge and 25 parts of silica sol.
The flame-retardant, heat-insulating and sound-absorbing sponge comprises 80 parts of hydrogel block, 7 parts of polyethylene glycol, 5 parts of polyvinyl alcohol, 2.5 parts of modifier, 100 parts of porous sponge and 30 parts of silica sol.
The diameter of the aerogel block is controlled to be 2-3cm, and after the silica sol is attached to the outer part of the porous sponge, the airing environment needs to be controlled to be 20-30 ℃.
Example 1:
the preparation method of the flame-retardant heat-insulation sound-absorbing sponge comprises the following specific steps:
the method comprises the following steps: taking a container, pouring polyethylene glycol and polyvinyl alcohol into the container, and continuously mixing and stirring the two substances for 8 minutes by using a stirring device until the two substances are completely and uniformly stirred for later use;
step two: pouring aerogel blocks into the mixture obtained in the step one, continuously heating the mixture by using a heating device, adjusting the temperature of the heating device to be 30 ℃, adding the aerogel blocks into the mixture when the temperature of the mixture is raised to 20 ℃, continuously mixing and stirring the aerogel blocks by using a stirring device, continuously adjusting the temperature of the heating device to be 40 ℃, continuously heating the mixture to be 20 ℃, and adjusting the temperature of the heating device to be 10 ℃ after the added aerogel blocks are completely dissolved;
step three: adding the silica sol into the mixed solution obtained in the second step, continuously mixing and stirring for 10 minutes until the silica sol is completely mixed to obtain the silica sol;
step four: pouring the porous sponge into the silica sol obtained in the third step, adding a modifier, taking out the porous sponge after the silica sol is completely attached to the outer wall of the porous sponge, and airing for 20 hours at normal temperature to complete preparation;
example 2:
the preparation method of the flame-retardant heat-insulation sound-absorbing sponge comprises the following specific steps:
the method comprises the following steps: taking a container, pouring polyethylene glycol and polyvinyl alcohol into the container, and continuously mixing and stirring the two substances for 9 minutes by using a stirring device until the two substances are completely and uniformly stirred for later use;
step two: pouring aerogel blocks into the mixture obtained in the step one, continuously heating the mixture by using a heating device, adjusting the temperature of the heating device to be 35 ℃, adding the aerogel blocks into the mixture when the temperature of the mixture is raised to 25 ℃, continuously mixing and stirring the aerogel blocks by using a stirring device, continuously adjusting the temperature of the heating device to be 45 ℃, continuously heating the mixture to be 25 ℃, and adjusting the temperature of the heating device to be 13 ℃ after the added aerogel blocks are completely dissolved;
step three: adding the silica sol into the mixed solution obtained in the second step, continuously mixing and stirring for 13 minutes until the silica sol is completely mixed to obtain the silica sol;
step four: pouring the porous sponge into the silica sol obtained in the third step, adding a modifier, taking out the porous sponge after the silica sol is completely attached to the outer wall of the porous sponge, and airing the porous sponge for 22 hours at normal temperature to complete preparation;
example 3:
the preparation method of the flame-retardant heat-insulation sound-absorbing sponge comprises the following specific steps:
the method comprises the following steps: taking a container, pouring polyethylene glycol and polyvinyl alcohol into the container, and continuously mixing and stirring the two substances for 10 minutes by a stirring device until the two substances are completely and uniformly stirred for later use;
step two: pouring aerogel blocks into the mixture obtained in the step one, continuously heating the mixture by using a heating device, adjusting the temperature of the heating device to be 40 ℃, adding the aerogel blocks into the mixture when the temperature of the mixture is raised to 30 ℃, continuously mixing and stirring the aerogel blocks by using a stirring device, continuously adjusting the temperature of the heating device to be 50 ℃, continuously heating the mixture to be 30 ℃, and adjusting the temperature of the heating device to be 15 ℃ after the added aerogel blocks are completely dissolved;
step three: adding the silica sol into the mixed solution obtained in the second step, continuously mixing and stirring for 15 minutes until the silica sol is completely mixed to obtain the silica sol;
step four: and (5) pouring the porous sponge into the silica sol obtained in the third step, adding a modifier, taking out the porous sponge after the silica sol is completely attached to the outer wall of the porous sponge, and airing for 24 hours at normal temperature to complete the preparation.
While there have been shown and described the fundamental principles and essential features of the invention and advantages thereof, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof; the present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The preparation method of the flame-retardant heat-insulation sound-absorbing sponge is characterized by comprising the following steps of: the specific preparation components of the flame-retardant, heat-insulating and sound-absorbing sponge comprise 60-80 parts of aerogel blocks, 5-7 parts of polyethylene glycol, 3-5 parts of polyvinyl alcohol, 1.5-2.5 parts of modifier, 80-100 parts of porous sponge and 20-30 parts of silica sol;
the preparation method of the flame-retardant heat-insulation sound-absorbing sponge comprises the following specific steps:
the method comprises the following steps: taking a container, pouring polyethylene glycol and polyvinyl alcohol into the container, and continuously mixing and stirring the two substances for 8-10 minutes by using a stirring device until the two substances are completely and uniformly stirred for later use;
step two: pouring the aerogel blocks into the mixture obtained in the step one, continuously heating the mixture by using a heating device, adjusting the temperature of the heating device to be 30-40 ℃, adding the aerogel blocks into the mixture when the temperature of the mixture is raised to be 20-30 ℃, continuously mixing and stirring the aerogel blocks by using a stirring device, continuously adjusting the temperature of the heating device to be 40-50 ℃, continuously heating the mixture to be 20-30 ℃, and adjusting the temperature of the heating device to be 10-15 ℃ after the added aerogel blocks are completely dissolved;
step three: adding the silica sol into the mixed solution obtained in the second step, continuously mixing and stirring for 10-15 minutes until the silica sol is completely mixed to obtain the silica sol;
step four: and (5) pouring the porous sponge into the silica sol obtained in the third step, adding a modifier, taking out the porous sponge after the silica sol is completely attached to the outer wall of the porous sponge, and airing for 20-24 hours at normal temperature to complete the preparation.
2. The method for preparing the flame-retardant, heat-insulating and sound-absorbing sponge according to claim 1, characterized in that: the flame-retardant, heat-insulating and sound-absorbing sponge comprises 60 parts of hydrogel block, 5 parts of polyethylene glycol, 3 parts of polyvinyl alcohol, 1.5 parts of modifier, 80 parts of porous sponge and 20 parts of silica sol.
3. The method for preparing the flame-retardant, heat-insulating and sound-absorbing sponge according to claim 1, characterized in that: the flame-retardant, heat-insulating and sound-absorbing sponge comprises 70 parts of hydrogel block, 6 parts of polyethylene glycol, 4 parts of polyvinyl alcohol, 2 parts of modifier, 90 parts of porous sponge and 25 parts of silica sol.
4. The method for preparing the flame-retardant, heat-insulating and sound-absorbing sponge according to claim 1, characterized in that: the flame-retardant, heat-insulating and sound-absorbing sponge comprises 80 parts of hydrogel block, 7 parts of polyethylene glycol, 5 parts of polyvinyl alcohol, 2.5 parts of modifier, 100 parts of porous sponge and 30 parts of silica sol.
5. The method for preparing the flame-retardant, heat-insulating and sound-absorbing sponge according to claim 1, characterized in that: the diameter of the aerogel block is controlled to be 2-3cm, and after the silica sol is attached to the outer part of the porous sponge, the airing environment needs to be controlled to be 20-30 ℃.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115558312A (en) * | 2022-10-31 | 2023-01-03 | 浙江清钰科技有限公司 | Heat insulation sponge and preparation method thereof |
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| CN112915979A (en) * | 2021-01-25 | 2021-06-08 | 伯克利南京医学研究有限责任公司 | Aerogel sponge material and preparation method and application thereof |
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| CN109180990A (en) * | 2018-07-23 | 2019-01-11 | 德清顾舒家华高分子材料有限公司 | A kind of preparation method of composite aerogel sponge |
| CN109487563A (en) * | 2018-09-29 | 2019-03-19 | 杭州创屹机电科技有限公司 | A kind of one-way heat conduction cotton fibriia and preparation method thereof |
| CN111844995A (en) * | 2020-07-23 | 2020-10-30 | 深圳市顺成欣电子材料有限公司 | Heat-preservation and heat-insulation composite cloth and preparation method thereof |
| CN112915979A (en) * | 2021-01-25 | 2021-06-08 | 伯克利南京医学研究有限责任公司 | Aerogel sponge material and preparation method and application thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115558312A (en) * | 2022-10-31 | 2023-01-03 | 浙江清钰科技有限公司 | Heat insulation sponge and preparation method thereof |
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Application publication date: 20220211 |