CN108585943A - A kind of construction wall thermal insulation material and its preparation process - Google Patents
A kind of construction wall thermal insulation material and its preparation process Download PDFInfo
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- CN108585943A CN108585943A CN201810465294.3A CN201810465294A CN108585943A CN 108585943 A CN108585943 A CN 108585943A CN 201810465294 A CN201810465294 A CN 201810465294A CN 108585943 A CN108585943 A CN 108585943A
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- 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
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/10—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by using foaming agents or by using mechanical means, e.g. adding preformed foam
-
- 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
- C04B16/00—Use of organic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of organic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B16/04—Macromolecular compounds
- C04B16/06—Macromolecular compounds fibrous
- C04B16/0616—Macromolecular compounds fibrous from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C04B16/065—Polyacrylates; Polymethacrylates
- C04B16/0658—Polyacrylonitrile
-
- 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
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/02—Agglomerated materials, e.g. artificial aggregates
- C04B18/027—Lightweight materials
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- 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
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/10—Coating or impregnating
- C04B20/1018—Coating or impregnating with organic materials
- C04B20/1029—Macromolecular compounds
- C04B20/1033—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
-
- 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
- C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
- C04B26/02—Macromolecular compounds
- C04B26/28—Polysaccharides or derivatives thereof
- C04B26/285—Cellulose or derivatives thereof
-
- 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
Abstract
The invention discloses a kind of construction wall thermal insulation materials and preparation method thereof, include mainly following components：22 42 parts of modified vitrification micro-bead, 14 23 parts of slag micropowder, 13 26 parts of modified straw powder, 3 10 parts of redispersable latex powder, 28 parts of polyacrylonitrile fibre, 1.3 6.5 parts of nucleating agent, 0.3 2.2 parts of foaming agent, 0.5 3.8 parts of curing agent.Construction wall thermal insulation material is ploughed under in present invention offer, has many advantages, such as that lightweight, high-strength, good heat insulating, water absorption rate is low, sound-absorbing is shockproof, and preparation method is simple, is suitable for large-scale production and application.
Description
Technical field
The present invention relates to building material technical fields, and in particular to a kind of construction wall thermal insulation material and its preparation process.
Background technology
Since self-thermal insulation material develops, organic insulation material is always mainstay material, and important position is in entire industry
It sets, organic insulation material is mainly derived from petroleum by-product, and organic insulation material biggest advantage is light, keeps the temperature, is heat-insulated
Property it is good, cost is also low, and greatest drawback is that safety is poor, and easy to aging, easy firing, fire protecting performance are low, and the smog to burn is big, poison
Property is big.
In inorganic heat insulation material, rock wool and mineral wool are widely adopted in international market, the maximum operation (service) temperature energy of rock wool
Reach 650 DEG C, mineral wool can also reach 300 DEG C.But the rock wool disadvantage that there is also hygroscopicity is big, heat insulation effect is poor, and
And rock wool is natural minerals, belongs to non-renewable resources.In general, inorganic heat insulation material fire protecting performance is good, but there is also
Density is larger, and thermal coefficient is higher, compared with organic material, the poor feature of heat preservation and energy conservation effects.
More than ten00000000 tons of the industrial solid castoff that China produces every year, reprocessing utilization rate is low, and environmental pollution is serious.Hair
Various industrial solid castoff treatment technologies are opened up, promotes its optimizing network resource utilization, has become urgent problem to be solved.With state
The continuous improvement of interior building security requirement and the tight demand of energy-saving and emission-reduction prepare novel inorganic using trade waste and protect
Adiabator is the important directions of energy-saving building materials development.
In consideration of it, it is necessary to provide a kind of construction wall thermal insulation material and preparation method thereof, to solve to deposit in the prior art
The problem of.
Invention content
In view of the above-mentioned analysis to the prior art, a kind of construction wall thermal insulation material of present invention offer and preparation method thereof,
The thermal insulation material has many advantages, such as that lightweight, high-strength, good heat insulating, water absorption rate is low, sound-absorbing is shockproof, and preparation method is simple, fits
In large-scale production and application.
In order to achieve the above object, the present invention is achieved through the following technical solutions：
A kind of construction wall thermal insulation material, in terms of parts by weight, the thermal insulation material includes mainly following components：
Wherein, in terms of parts by weight, the thermal insulation material includes mainly following components：
Wherein, the modified vitrification micro-bead be glass bead under the conditions of 300-500 degree through polystyrene, polyvinyl chloride and
Polystyrene or the spray modification of polypropylene and polystyrene form.
Wherein, the slag micropowder is the superfines that blast furnace granulated slag passes through that grinding obtains, specific surface area 350-
450m2/kg。
Wherein, the preparation method of the modified straw powder is as follows：
(1) maize straw, wheat stalk, cotton stalk or the beanstalk stalk discarded in agricultural production are collected, stalk is crushed
To 80-100 mesh；
(2) stalk powder is dried to moisture within 5%, be sent into reaction kettle, and be added into reaction kettle bright
Latex solution (solid content 40%) carries out dipping 24-48h to straw, controls temperature in reaction kettle and is at the uniform velocity stirred at 80-85 DEG C
Reaction 20-30 minutes, then takes out, and is dried, is re-fed into freezing equipment, is freezed 40 minutes under subzero 15 DEG C of environment, into
The cold-resistant processing of row；
(3) straw powder is sent into ball mill after freezing processing, continuously grinding 4 hours crosses 150-250 mesh sieve, dries moisture
Content obtains modified straw powder to 17%.
Wherein, the nucleating agent is one kind in talcum powder, calcium carbonate, citric acid or metal powder.
Wherein, it is 1 that the foaming agent, which is weight ratio,:1 pentamethylene and the mixture of pentane.
Wherein, the curing agent is p-methyl benzenesulfonic acid.
The present invention also provides the preparation methods of above-mentioned construction wall thermal insulation material, include the following steps：
(1) each raw material is weighed according to regulation weight；
(2) reaction kettle is added in modified vitrification micro-bead, slag micropowder, modified straw powder, first dry-mixed 10-20 minutes；
(3) dry-mixed that redispersable latex powder, polyacrylonitrile fibre, nucleating agent, curing agent is added in 2 minutes afterwards, then mix
Stirring 4-8 minutes is closed, kettle temperature is maintained at 55-60 DEG C；
(4) foaming agent is added in 1 minute, 5-10s is then stirred with the speed of 2000-3000r/min, is injected immediately
In mold, die cover is sealed, the drying chamber of 80-85 DEG C of push-in is warming up to 130-150 DEG C, keeps the temperature >=1 hour again after 10-15 minutes；
(5) die sinking taking-up expanded material is pushed into drying chamber again after going out drying chamber, cures >=1 hour, drops under the conditions of 130-150 DEG C
It is taken out to get construction wall thermal insulation material after temperature is cooling.
Compared with prior art, the present invention the present invention has following advantageous effect：
(1) present invention is by being added modified vitrification micro-bead, and utilizes the characteristic of more cavitys inside its surface-closed, to make
Must be made construction wall thermal insulation material have significant heat insulation effect and soundproof effect, meanwhile, the glass bead of modification with
There is preferable compatibility between other components, to improve heat-insulating property, the mechanical property of thermal insulation material, reduce water absorption rate,
And the breakage rate of modified glass bead is greatly reduced, to ensure thermal insulation material heat-insulating property stability.
(2) present invention can be effectively filled in basis material, by incorporating modified straw powder to improve component in material
Between cohesive force, and then improve material heat-insulating property, mechanical property, reduce water absorption rate.
(3) polyacrylonitrile fibre that the present invention is added can be effectively improved contraction fissure, toughness existing for Conventional insulation
The problems such as insufficient, realizes the durability of thermal insulation material.
(4) thermal insulation material preparation process of the invention is simple, and industrialized production easy to implement can be widely applied to all kinds of people
With, utilities building, heat-insulation and heat-preservation storehouse or sound-insulating energy-saving building
Specific implementation mode
Form by the following examples is described in further detail the above of the present invention again, but should not be by this
The range for being interpreted as the above-mentioned theme of the present invention is only limitted to following embodiment, all based on the technology realized belonging to the above of the present invention
It all belongs to the scope of the present invention.
Embodiment 1
The construction wall thermal insulation material of the present embodiment, in terms of parts by weight, the thermal insulation material includes mainly following components：
Wherein, the modified vitrification micro-bead be glass bead under the conditions of 300-500 degree through polystyrene, polyvinyl chloride and
Polystyrene or the spray modification of polypropylene and polystyrene form.
Wherein, the slag micropowder is the superfines that blast furnace granulated slag passes through that grinding obtains, specific surface area 350-
450m2/kg。
Wherein, the preparation method of the modified straw powder is as follows：
(1) maize straw, wheat stalk, cotton stalk or the beanstalk stalk discarded in agricultural production are collected, stalk is crushed
To 80-100 mesh；
(2) stalk powder is dried to moisture within 5%, be sent into reaction kettle, and be added into reaction kettle bright
Latex solution (solid content 40%) carries out dipping 24-48h to straw, controls temperature in reaction kettle and is at the uniform velocity stirred at 80-85 DEG C
Reaction 20-30 minutes, then takes out, and is dried, is re-fed into freezing equipment, is freezed 40 minutes under subzero 15 DEG C of environment, into
The cold-resistant processing of row；
(3) straw powder is sent into ball mill after freezing processing, continuously grinding 4 hours crosses 150-250 mesh sieve, dries moisture
Content obtains modified straw powder to 17%.
Wherein, the nucleating agent is one kind in talcum powder, calcium carbonate, citric acid or metal powder.
Wherein, it is 1 that the foaming agent, which is weight ratio,:1 pentamethylene and the mixture of pentane.
Wherein, the curing agent is p-methyl benzenesulfonic acid.
The present invention also provides the preparation methods of above-mentioned construction wall thermal insulation material, include the following steps：
(1) each raw material is weighed according to regulation weight；
(2) reaction kettle is added in modified vitrification micro-bead, slag micropowder, modified straw powder, first dry-mixed 10-20 minutes；
(3) dry-mixed that redispersable latex powder, polyacrylonitrile fibre, nucleating agent, curing agent is added in 2 minutes afterwards, then mix
Stirring 4-8 minutes is closed, kettle temperature is maintained at 55-60 DEG C；
(4) foaming agent is added in 1 minute, 5-10s is then stirred with the speed of 2000-3000r/min, is injected immediately
In mold, die cover is sealed, the drying chamber of 80-85 DEG C of push-in is warming up to 130-150 DEG C, keeps the temperature >=1 hour again after 10-15 minutes；
(5) die sinking taking-up expanded material is pushed into drying chamber again after going out drying chamber, cures >=1 hour, drops under the conditions of 130-150 DEG C
It is taken out to get construction wall thermal insulation material after temperature is cooling.
Embodiment 2
The construction wall thermal insulation material of the present embodiment, in terms of parts by weight, the thermal insulation material includes mainly following components：
Wherein, the modified vitrification micro-bead be glass bead under the conditions of 300-500 degree through polystyrene, polyvinyl chloride and
Polystyrene or the spray modification of polypropylene and polystyrene form.
Wherein, the slag micropowder is the superfines that blast furnace granulated slag passes through that grinding obtains, specific surface area 350-
450m2/kg。
Wherein, the preparation method of the modified straw powder is as follows：
(1) maize straw, wheat stalk, cotton stalk or the beanstalk stalk discarded in agricultural production are collected, stalk is crushed
To 80-100 mesh；
(2) stalk powder is dried to moisture within 5%, be sent into reaction kettle, and be added into reaction kettle bright
Latex solution (solid content 40%) carries out dipping 24-48h to straw, controls temperature in reaction kettle and is at the uniform velocity stirred at 80-85 DEG C
Reaction 20-30 minutes, then takes out, and is dried, is re-fed into freezing equipment, is freezed 40 minutes under subzero 15 DEG C of environment, into
The cold-resistant processing of row；
(3) straw powder is sent into ball mill after freezing processing, continuously grinding 4 hours crosses 150-250 mesh sieve, dries moisture
Content obtains modified straw powder to 17%.
Wherein, the nucleating agent is one kind in talcum powder, calcium carbonate, citric acid or metal powder.
Wherein, it is 1 that the foaming agent, which is weight ratio,:1 pentamethylene and the mixture of pentane.
Wherein, the curing agent is p-methyl benzenesulfonic acid.
The present invention also provides the preparation methods of above-mentioned construction wall thermal insulation material, include the following steps：
(1) each raw material is weighed according to regulation weight；
(2) reaction kettle is added in modified vitrification micro-bead, slag micropowder, modified straw powder, first dry-mixed 10-20 minutes；
(3) dry-mixed that redispersable latex powder, polyacrylonitrile fibre, nucleating agent, curing agent is added in 2 minutes afterwards, then mix
Stirring 4-8 minutes is closed, kettle temperature is maintained at 55-60 DEG C；
(4) foaming agent is added in 1 minute, 5-10s is then stirred with the speed of 2000-3000r/min, is injected immediately
In mold, die cover is sealed, the drying chamber of 80-85 DEG C of push-in is warming up to 130-150 DEG C, keeps the temperature >=1 hour again after 10-15 minutes；
(5) die sinking taking-up expanded material is pushed into drying chamber again after going out drying chamber, cures >=1 hour, drops under the conditions of 130-150 DEG C
It is taken out to get construction wall thermal insulation material after temperature is cooling.
Embodiment 3
The construction wall thermal insulation material of the present embodiment, in terms of parts by weight, the thermal insulation material includes mainly following components：
Wherein, the modified vitrification micro-bead be glass bead under the conditions of 300-500 degree through polystyrene, polyvinyl chloride and
Polystyrene or the spray modification of polypropylene and polystyrene form.
Wherein, the slag micropowder is the superfines that blast furnace granulated slag passes through that grinding obtains, specific surface area 350-
450m2/kg。
Wherein, the preparation method of the modified straw powder is as follows：
(1) maize straw, wheat stalk, cotton stalk or the beanstalk stalk discarded in agricultural production are collected, stalk is crushed
To 80-100 mesh；
(2) stalk powder is dried to moisture within 5%, be sent into reaction kettle, and be added into reaction kettle bright
Latex solution (solid content 40%) carries out dipping 24-48h to straw, controls temperature in reaction kettle and is at the uniform velocity stirred at 80-85 DEG C
Reaction 20-30 minutes, then takes out, and is dried, is re-fed into freezing equipment, is freezed 40 minutes under subzero 15 DEG C of environment, into
The cold-resistant processing of row；
(3) straw powder is sent into ball mill after freezing processing, continuously grinding 4 hours crosses 150-250 mesh sieve, dries moisture
Content obtains modified straw powder to 17%.
Wherein, the nucleating agent is one kind in talcum powder, calcium carbonate, citric acid or metal powder.
Wherein, it is 1 that the foaming agent, which is weight ratio,:1 pentamethylene and the mixture of pentane.
Wherein, the curing agent is p-methyl benzenesulfonic acid.
The present invention also provides the preparation methods of above-mentioned construction wall thermal insulation material, include the following steps：
(1) each raw material is weighed according to regulation weight；
(2) reaction kettle is added in modified vitrification micro-bead, slag micropowder, modified straw powder, first dry-mixed 10-20 minutes；
(3) dry-mixed that redispersable latex powder, polyacrylonitrile fibre, nucleating agent, curing agent is added in 2 minutes afterwards, then mix
Stirring 4-8 minutes is closed, kettle temperature is maintained at 55-60 DEG C；
(4) foaming agent is added in 1 minute, 5-10s is then stirred with the speed of 2000-3000r/min, is injected immediately
In mold, die cover is sealed, the drying chamber of 80-85 DEG C of push-in is warming up to 130-150 DEG C, keeps the temperature >=1 hour again after 10-15 minutes；
(5) die sinking taking-up expanded material is pushed into drying chamber again after going out drying chamber, cures >=1 hour, drops under the conditions of 130-150 DEG C
It is taken out to get construction wall thermal insulation material after temperature is cooling.
Embodiment 4
The construction wall thermal insulation material of the present embodiment, in terms of parts by weight, the thermal insulation material includes mainly following components：
Wherein, in terms of parts by weight, the thermal insulation material includes mainly following components：
Wherein, the modified vitrification micro-bead be glass bead under the conditions of 300-500 degree through polystyrene, polyvinyl chloride and
Polystyrene or the spray modification of polypropylene and polystyrene form.
Wherein, the slag micropowder is the superfines that blast furnace granulated slag passes through that grinding obtains, specific surface area 350-
450m2/kg。
Wherein, the preparation method of the modified straw powder is as follows：
(1) maize straw, wheat stalk, cotton stalk or the beanstalk stalk discarded in agricultural production are collected, stalk is crushed
To 80-100 mesh；
(2) stalk powder is dried to moisture within 5%, be sent into reaction kettle, and be added into reaction kettle bright
Latex solution (solid content 40%) carries out dipping 24-48h to straw, controls temperature in reaction kettle and is at the uniform velocity stirred at 80-85 DEG C
Reaction 20-30 minutes, then takes out, and is dried, is re-fed into freezing equipment, is freezed 40 minutes under subzero 15 DEG C of environment, into
The cold-resistant processing of row；
(3) straw powder is sent into ball mill after freezing processing, continuously grinding 4 hours crosses 150-250 mesh sieve, dries moisture
Content obtains modified straw powder to 17%.
Wherein, the nucleating agent is one kind in talcum powder, calcium carbonate, citric acid or metal powder.
Wherein, it is 1 that the foaming agent, which is weight ratio,:1 pentamethylene and the mixture of pentane.
Wherein, the curing agent is p-methyl benzenesulfonic acid.
The present invention also provides the preparation methods of above-mentioned construction wall thermal insulation material, include the following steps：
(1) each raw material is weighed according to regulation weight；
(2) reaction kettle is added in modified vitrification micro-bead, slag micropowder, modified straw powder, first dry-mixed 10-20 minutes；
(3) dry-mixed that redispersable latex powder, polyacrylonitrile fibre, nucleating agent, curing agent is added in 2 minutes afterwards, then mix
Stirring 4-8 minutes is closed, kettle temperature is maintained at 55-60 DEG C；
(4) foaming agent is added in 1 minute, 5-10s is then stirred with the speed of 2000-3000r/min, is injected immediately
In mold, die cover is sealed, the drying chamber of 80-85 DEG C of push-in is warming up to 130-150 DEG C, keeps the temperature >=1 hour again after 10-15 minutes；
(5) die sinking taking-up expanded material is pushed into drying chamber again after going out drying chamber, cures >=1 hour, drops under the conditions of 130-150 DEG C
It is taken out to get construction wall thermal insulation material after temperature is cooling.
Embodiment 5
The construction wall thermal insulation material of the present embodiment, in terms of parts by weight, the thermal insulation material includes mainly following components：
Wherein, the modified vitrification micro-bead be glass bead under the conditions of 300-500 degree through polystyrene, polyvinyl chloride and
Polystyrene or the spray modification of polypropylene and polystyrene form.
Wherein, the slag micropowder is the superfines that blast furnace granulated slag passes through that grinding obtains, specific surface area 350-
450m2/kg。
Wherein, the preparation method of the modified straw powder is as follows：
(1) maize straw, wheat stalk, cotton stalk or the beanstalk stalk discarded in agricultural production are collected, stalk is crushed
To 80-100 mesh；
(2) stalk powder is dried to moisture within 5%, be sent into reaction kettle, and be added into reaction kettle bright
Latex solution (solid content 40%) carries out dipping 24-48h to straw, controls temperature in reaction kettle and is at the uniform velocity stirred at 80-85 DEG C
Reaction 20-30 minutes, then takes out, and is dried, is re-fed into freezing equipment, is freezed 40 minutes under subzero 15 DEG C of environment, into
The cold-resistant processing of row；
(3) straw powder is sent into ball mill after freezing processing, continuously grinding 4 hours crosses 150-250 mesh sieve, dries moisture
Content obtains modified straw powder to 17%.
Wherein, the nucleating agent is one kind in talcum powder, calcium carbonate, citric acid or metal powder.
Wherein, it is 1 that the foaming agent, which is weight ratio,:1 pentamethylene and the mixture of pentane.
Wherein, the curing agent is p-methyl benzenesulfonic acid.
The present invention also provides the preparation methods of above-mentioned construction wall thermal insulation material, include the following steps：
(1) each raw material is weighed according to regulation weight；
(2) reaction kettle is added in modified vitrification micro-bead, slag micropowder, modified straw powder, first dry-mixed 10-20 minutes；
(3) dry-mixed that redispersable latex powder, polyacrylonitrile fibre, nucleating agent, curing agent is added in 2 minutes afterwards, then mix
Stirring 4-8 minutes is closed, kettle temperature is maintained at 55-60 DEG C；
(4) foaming agent is added in 1 minute, 5-10s is then stirred with the speed of 2000-3000r/min, is injected immediately
In mold, die cover is sealed, the drying chamber of 80-85 DEG C of push-in is warming up to 130-150 DEG C, keeps the temperature >=1 hour again after 10-15 minutes；
(5) die sinking taking-up expanded material is pushed into drying chamber again after going out drying chamber, cures >=1 hour, drops under the conditions of 130-150 DEG C
It is taken out to get construction wall thermal insulation material after temperature is cooling.
Experimental example 1
As a comparison case by wall thermal insulating betrothal gifts made from 1-5 of the embodiment of the present invention and commercially available two wall heat insulation material
1, comparative example 2 carries out thermal coefficient experiment, and concrete outcome is shown in Table 1：
1 performance test results of table
As it can be seen from table 1 the thermal coefficient of the thermal insulation material of the present invention is better than comparative example, and in 600 DEG C of higher temperature
In the case of, can also have lower thermal coefficient, the requirement of metope heat preservation can be met.
Experimental example 2
As a comparison using wall thermal insulating betrothal gifts made from 1-5 of the embodiment of the present invention and commercially available two wall heat insulation material
Example 1, comparative example 2 carry out compressive strength test, and concrete outcome is shown in Table 2：
2 performance test results of table
| Sample | Compression strength (MPa) |
| Embodiment 1 | 1.21 |
| Embodiment 2 | 1.15 |
| Embodiment 3 | 1.18 |
| Embodiment 4 | 1.16 |
| Embodiment 5 | 1.14 |
| Comparative example 1 | 0.82 |
| Comparative example 2 | 0.72 |
From table 2 it can be seen that the intensity of the wall heat insulation material of the present invention is higher than comparative example.
Experimental example 3
As a comparison case using wall heat insulation material made from embodiment 1-5 and commercially available two wall heat insulation material
1, comparative example 2 carry out the performance test in terms of sound-absorbing, water suction,
It is as shown in table 3 below to obtain result：
3 performance test results of table
As shown in Table 3, the sound-absorbing effect of wall heat insulation material made from the embodiment of the present invention, water absorption rate are superior to compare
Example.
In conclusion construction wall thermal insulation material provided by the invention and preparation method thereof, the thermal insulation material have lightweight,
The advantages that high-strength, good heat insulating, water absorption rate are low, sound-absorbing is shockproof, and preparation method is simple, is suitable for large-scale production and application.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, although with reference to aforementioned reality
Applying example, invention is explained in detail, for those skilled in the art, still can be to aforementioned each implementation
Technical solution recorded in example is modified or equivalent replacement of some of the technical features.All essences in the present invention
With within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention god.
Claims (9)
1. a kind of construction wall thermal insulation material, which is characterized in that in terms of parts by weight, the thermal insulation material includes mainly with the following group
Point：
2. construction wall thermal insulation material according to claim 1, which is characterized in that in terms of parts by weight, the thermal insulating material
Material includes mainly following components：
3. construction wall thermal insulation material according to claim 1, which is characterized in that the modified vitrification micro-bead is that vitreous is micro-
Pearl it is modified through polystyrene, polyvinyl chloride and polystyrene or polypropylene and polystyrene spray under the conditions of 300-500 degree and
At.
4. construction wall thermal insulation material according to claim 1, which is characterized in that the slag micropowder passes through for blast furnace granulated slag
Cross the superfines that grinding obtains, specific surface area 350-450m2/kg。
5. construction wall thermal insulation material according to claim 1, which is characterized in that the preparation method of the modified straw powder
It is as follows：
(1) maize straw, wheat stalk, cotton stalk or the beanstalk stalk discarded in agricultural production are collected, stalk is crushed to 80-
100 mesh；
(2) stalk powder is dried to moisture within 5%, be sent into reaction kettle, and gelatin breast is added into reaction kettle
Liquid (solid content 40%) carries out dipping 24-48h to straw, controls temperature in reaction kettle and is at the uniform velocity stirred to react at 80-85 DEG C
It 20-30 minutes, then takes out, is dried, is re-fed into freezing equipment, is freezed 40 minutes under subzero 15 DEG C of environment, carry out resistance to
Cold processing；
(3) straw powder is sent into ball mill after freezing processing, continuously grinding 4 hours crosses 150-250 mesh sieve, dries moisture
To 17%, modified straw powder is obtained.
6. construction wall thermal insulation material according to claim 1, which is characterized in that the nucleating agent is talcum powder, carbonic acid
One kind in calcium, citric acid or metal powder.
7. construction wall thermal insulation material according to claim 1, which is characterized in that the foaming agent is that weight ratio is 1:1
Pentamethylene and pentane mixture.
8. construction wall thermal insulation material according to claim 1, which is characterized in that the curing agent is p-methyl benzenesulfonic acid.
9. according to the preparation method of claim 1-8 any one of them construction wall thermal insulation materials, which is characterized in that including with
Lower step：
(1) each raw material is weighed according to regulation weight；
(2) reaction kettle is added in modified vitrification micro-bead, slag micropowder, modified straw powder, first dry-mixed 10-20 minutes；
(3) dry-mixed that redispersable latex powder, polyacrylonitrile fibre, nucleating agent, curing agent is added in 2 minutes afterwards, then mixing is stirred
It mixes 4-8 minutes, kettle temperature is maintained at 55-60 DEG C；
(4) foaming agent is added in 1 minute, 5-10s is then stirred with the speed of 2000-3000r/min, injects mold immediately
In, die cover is sealed, the drying chamber of 80-85 DEG C of push-in is warming up to 130-150 DEG C, keeps the temperature >=1 hour again after 10-15 minutes；
(5) die sinking taking-up expanded material is pushed into drying chamber again after going out drying chamber, is cured >=1 hour under the conditions of 130-150 DEG C, cooling is cold
But it takes out afterwards to get construction wall thermal insulation material.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103342531A (en) * | 2013-07-05 | 2013-10-09 | 李奕 | Building exterior wall thermal insulation material and preparation process thereof |
| CN103524075A (en) * | 2013-09-11 | 2014-01-22 | 青岛龙梅机电技术有限公司 | Building wall insulation material |
| CN105503070A (en) * | 2015-12-02 | 2016-04-20 | 上海贝恒化学建材有限公司 | Modified vitrified micro bubble thermal mortar |
| CN107176821A (en) * | 2017-06-22 | 2017-09-19 | 合肥易美特建材有限公司 | A kind of Novel wall body heat insulation material and preparation method |
-
2018
- 2018-05-16 CN CN201810465294.3A patent/CN108585943A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103342531A (en) * | 2013-07-05 | 2013-10-09 | 李奕 | Building exterior wall thermal insulation material and preparation process thereof |
| CN103524075A (en) * | 2013-09-11 | 2014-01-22 | 青岛龙梅机电技术有限公司 | Building wall insulation material |
| CN105503070A (en) * | 2015-12-02 | 2016-04-20 | 上海贝恒化学建材有限公司 | Modified vitrified micro bubble thermal mortar |
| CN107176821A (en) * | 2017-06-22 | 2017-09-19 | 合肥易美特建材有限公司 | A kind of Novel wall body heat insulation material and preparation method |
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