CN108947462A - A kind of fly ash base heat-insulating material and preparation method thereof - Google Patents
A kind of fly ash base heat-insulating material and preparation method thereof Download PDFInfo
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- CN108947462A CN108947462A CN201810760127.1A CN201810760127A CN108947462A CN 108947462 A CN108947462 A CN 108947462A CN 201810760127 A CN201810760127 A CN 201810760127A CN 108947462 A CN108947462 A CN 108947462A
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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
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/34—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing cold phosphate binders
- C04B28/344—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing cold phosphate binders the phosphate binder being present in the starting composition solely as one or more phosphates
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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
- C04B20/02—Treatment
- C04B20/04—Heat treatment
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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
- 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
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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
- 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
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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
- 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
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- 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
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- Structural Engineering (AREA)
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- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a kind of fly ash base heat-insulating material and preparation method thereof, preparing the raw material of fly ash base heat-insulating material by its parts by weight includes: 50 parts~65 parts of modified coal ash, 8 parts~14 parts of inorfil, 2 parts~6 parts of portland cement, 2 parts~8 parts of polyvinyl alcohol, 2.5 parts~9 parts of adhesive.The insulation effect of fly ash base heat-insulating material prepared by the present invention is good, thermal coefficient is between 0.029w/ (mk)~0.0367w/ (mk), compression strength is greater than 35MPa, and preparation method is simple to operation, each component is sufficiently mixed in preparation process, product quality is uniform, quality is high, is suitble to large-scale production.
Description
Technical field
The present invention relates to technical field of energy saving and environmental protection, and in particular to a kind of fly ash base heat-insulating material and preparation method thereof.
Background technique
Flyash is the fine ash that catching is got off from the flue gas after coal combustion, is that the primary solids of coal-burning power plant's discharge are discarded
Object belongs to one of biggish industrial residue of current discharge amount.With being continuously increased for national electricity consumption, the scale of coal-fired power plant
Increasing, the discharge amount of flyash also increases year by year, if a large amount of flyash be not used can bring it is many it is bad after
Fruit, such as: needing to occupy a large amount of place and stack；The granularity of flyash is smaller, is also easy to produce fugitive dust, pollution air etc..Therefore compel
It is essential and wants a kind of technology that can integrate effective use flyash, reduce the pollution of flyash, realize the recycling of resource.
Chinese patent CN103936387A discloses a kind of preparation method of light flyash matrix shape heat-insulating material, first will
Bentonite, flyash and water for ball milling 1~3 hour, are made slurry；Then calcium oxide ball milling 0.5~2 hour again is added；Finally
Waterglass is added, is stirred；Mixed slurry is poured into the autoclave equipped with mold, reacts 6 under hydrothermal reaction condition
~24 hours, demoulding, in 100~200 degrees Celsius of drying to get light flyash matrix shape insulating product.The patent is with solid
Waste light flyash is primary raw material, and the apparent density for the matrix insulating product being prepared is low, has certain intensity, still
The heat-insulating property of the standby light flyash matrix insulating product of the patent system is bad.
Chinese patent CN104310946A discloses a kind of coal ash heat-preservation material and preparation method thereof, by comprising following heavy
The component of amount part is made: 60~65 parts of flyash, 15~18 parts of glass fibre, 10~13 parts of monostearate, charcoal 5~10
Part, 5~8 parts of montmorillonite, 5~7 parts of rosin and 0.05~0.8 part of diisocyanate are prepared the following steps are included: weighing fine coal
Ash, glass fibre, monostearate, charcoal, montmorillonite are added in high pressure homogenizer, and 20 points are stirred under 75~80 degrees Celsius
Clock sequentially adds rosin and diisocyanate, is uniformly mixed, and fires 2~3 hours, obtains under 880~910 degrees Celsius
Coal ash heat-preservation material.The patent glass fibre, diisocyanate and rosin are added during the preparation process come improve heat insulating ability and
Mechanical strength, but the heat insulation effect of the standby thermal insulation material of the patent system is bad.
Therefore, it is necessary to a kind of resource utilization methods again of the flyash of high production capacity, improve the utilization rate of flyash, reduction pair
The pollution and burden of environment realize the regeneration economic value of waste, reach energy-saving and environment-friendly effect.
Summary of the invention
The present invention is in view of the above-mentioned problems, provide a kind of fly ash base heat-insulating material and preparation method thereof.
Technical solution used by the present invention solves the above problems is: a kind of fly ash base heat-insulating material prepares flyash
The raw material of base heat-insulating material includes: 50 parts~65 parts of modified coal ash, 8 parts of inorfil~14 parts, silicate by its parts by weight
2 parts~6 parts of cement, 2 parts~8 parts of polyvinyl alcohol, 2.5 parts~9 parts of adhesive.Wherein, flyash has specific surface abundant
Product, after modification, can become coarse for the surface of otherwise smooth densification, its surface is made more holes occur, increase
Add the air capacity in material, improves the insulation effect of material；Adhesive selects the mixing of acrylate and aluminium dihydrogen phosphate,
The processability and elasticity of acrylate can be improved, improve the combination of flyash and other inorganic material, aluminium dihydrogen phosphate may be used also
To improve the chemical binding force between liquid and solid matter, the intensity and mouldability of heat-insulating material are improved.
Further, the preparation process of modified coal ash includes:
Step i, by flyash ball milling, sieving, flyash of the screening partial size less than 40 mesh；
Step ii, the ash transfer that step i is obtained is into blender, after 5wt%~12wt% hydrochloric acid solution is added
It is stirred 20 minutes~45 minutes；
Step iii, by step ii, treated that flyash is put into high temperature furnace, controls 260 DEG C~350 DEG C of temperature, at heat
Reason 0.5 hour~2 hours, obtains modified coal ash.
Further, in step ii, the weight ratio of hydrochloric acid solution and flyash is 1:6~12.
Further, the degree of polymerization of polyvinyl alcohol is 1500~2000.
Further, inorfil is the medium-alkali glass fibre that sodium oxide content is 12wt%~14wt%.
Further, adhesive is made of aluminium dihydrogen phosphate and acrylic acid ester emulsion according to weight ratio 1:6~10.
Further, the solid content of acrylic acid ester emulsion is 45wt%~55wt%.
Further, prepare the raw material of fly ash base heat-insulating material by its parts by weight include: 58 parts of modified coal ash, it is inorganic
11 parts of fiber, 4 parts of portland cement, 5 parts of polyvinyl alcohol, 6 parts of adhesive.
Another goal of the invention of the invention is to provide a kind of preparation method of fly ash base heat-insulating material, including walks as follows
It is rapid:
Step S10 is weighed the raw material for preparing fly ash base heat-insulating material by above-mentioned parts by weight；
The modified coal ash of above-mentioned parts by weight and portland cement are stirred by step S20, and above-mentioned parts by weight are added
Continue to be stirred 10 minutes~20 minutes after inorfil, obtains pre-composition；
Polyvinyl alcohol, the adhesive of above-mentioned parts by weight are added in the pre-composition obtained to step S20 by step S30, and
Water is poured into mold after being stirred and is press-formed, and is demoulded, is dried, and fly ash base heat-insulating material is obtained.Wherein, will first consolidate
Body inorganic component flyash and silicate are thoroughly mixed, and are improved the uniformity of the two, are added inorfil, polyethylene
Alcohol is eventually adding adhesive and water, and contact of the solid mixture with liquid component can be improved, each component is enable to be uniformly mixed.
Further, in step S30, the technological parameter of extrusion forming are as follows: 150 DEG C~220 DEG C of temperature, pressure 5MPa~
10MPa。
The invention has the advantages that
1. the present invention can consume a large amount of flyash, protection ring using solid waste coal ash as thermally insulating material for building
The reasonable utilization of resource is realized in border, and the cost of material of flyash is cheap, can reduce the production cost of heat-insulating material；
2. heat-insulating material prepared by the present invention is free of asbestos, not can cause environmental pollution, because of the physics of flyash itself
Design feature, the feature for keeping the bulk density of heat-insulating material obtained small, flexible, is added with inorfil and silicate cement
The mechanical strength of heat-insulating material can be improved in mud, is added with polyvinyl alcohol and adhesive, the phase of heat-insulating material each component can be improved
Interaction improves formed product effect；
3. the insulation effect of fly ash base heat-insulating material prepared by the present invention is good, thermal coefficient 0.029w/ (mk)~
Between 0.0367w/ (mk), compression strength is greater than 35MPa, and preparation method is simple to operation, each component in preparation process
It is sufficiently mixed, product quality is uniform, quality is high, is suitble to large-scale production.
Specific embodiment
The embodiment of the present invention is described in detail below, but what the present invention can be defined by the claims and cover
Multitude of different ways is implemented.
Embodiment 1
A kind of fly ash base heat-insulating material and preparation method thereof
The raw material for preparing fly ash base heat-insulating material includes: modified coal ash 50kg, inorfil 10kg, portland cement
2kg, polyvinyl alcohol 6kg, adhesive 2.5kg.Wherein, the degree of polymerization of polyvinyl alcohol is 1500~2000, inorfil is oxidation
Sodium content be the medium-alkali glass fibre of 12wt%, adhesive by aluminium dihydrogen phosphate and acrylic acid ester emulsion according to weight ratio 1:6 group
Solid content at, acrylic acid ester emulsion is 53wt%.
The preparation process of modified coal ash includes:
Step i, by flyash ball milling, sieving, flyash of the screening partial size less than 40 mesh；
Step ii, the ash transfer that step i is obtained are stirred after 5wt% hydrochloric acid solution is added into blender
30 minutes, the weight ratio of hydrochloric acid solution and flyash was 1:10；
Step iii, by step ii, treated that flyash is put into high temperature furnace, controls 350 DEG C of temperature, heat treatment 0.5 is small
When, obtain modified coal ash.
Fly ash base heat-insulating material, is prepared via a method which:
Step S10 is weighed the raw material for preparing fly ash base heat-insulating material by above-mentioned parts by weight；
The modified coal ash of above-mentioned parts by weight and portland cement are stirred by step S20, and above-mentioned parts by weight are added
Continue to be stirred 10 minutes after inorfil, obtains pre-composition；
Polyvinyl alcohol, the adhesive of above-mentioned parts by weight are added in the pre-composition obtained to step S20 by step S30, and
Water is poured into mold after being stirred and is press-formed, the technological parameter of extrusion forming are as follows: 170 DEG C of temperature, pressure 6MPa, then pass through
Demoulding, drying, obtain fly ash base heat-insulating material.
Embodiment 2
A kind of fly ash base heat-insulating material and preparation method thereof
The raw material for preparing fly ash base heat-insulating material includes: modified coal ash 55kg, inorfil 8kg, portland cement
3kg, polyvinyl alcohol 2kg, adhesive 4kg.Wherein, the degree of polymerization of polyvinyl alcohol is 1500~2000, inorfil is sodium oxide molybdena
Content be 14wt% medium-alkali glass fibre, adhesive be made of aluminium dihydrogen phosphate and acrylic acid ester emulsion according to weight ratio 1:7,
The solid content of acrylic acid ester emulsion is 45wt%.
The preparation process of modified coal ash includes:
Step i, by flyash ball milling, sieving, flyash of the screening partial size less than 40 mesh；
Step ii, the ash transfer that step i is obtained are stirred after 6wt% hydrochloric acid solution is added into blender
20 minutes, the weight ratio of hydrochloric acid solution and flyash was 1:7；
Step iii, by step ii, treated that flyash is put into high temperature furnace, controls 260 DEG C of temperature, heat treatment 1.0 is small
When, obtain modified coal ash.
Fly ash base heat-insulating material, is prepared via a method which:
Step S10 is weighed the raw material for preparing fly ash base heat-insulating material by above-mentioned parts by weight；
The modified coal ash of above-mentioned parts by weight and portland cement are stirred by step S20, and above-mentioned parts by weight are added
Continue to be stirred 12 minutes after inorfil, obtains pre-composition；
Polyvinyl alcohol, the adhesive of above-mentioned parts by weight are added in the pre-composition obtained to step S20 by step S30, and
Water is poured into mold after being stirred and is press-formed, the technological parameter of extrusion forming are as follows: 220 DEG C of temperature, pressure 5MPa, then pass through
Demoulding, drying, obtain fly ash base heat-insulating material.
Embodiment 3
A kind of fly ash base heat-insulating material and preparation method thereof
The raw material for preparing fly ash base heat-insulating material includes: modified coal ash 60kg, inorfil 14kg, portland cement
6kg, polyvinyl alcohol 4kg, adhesive 7kg.Wherein, the degree of polymerization of polyvinyl alcohol is 1500~2000, inorfil is sodium oxide molybdena
Content be 13wt% medium-alkali glass fibre, adhesive be made of aluminium dihydrogen phosphate and acrylic acid ester emulsion according to weight ratio 1:9,
The solid content of acrylic acid ester emulsion is 48wt%.
The preparation process of modified coal ash includes:
Step i, by flyash ball milling, sieving, flyash of the screening partial size less than 40 mesh；
Step ii, the ash transfer that step i is obtained are stirred after 10wt% hydrochloric acid solution is added into blender
45 minutes, the weight ratio of hydrochloric acid solution and flyash was 1:12；
Step iii, by step ii, treated that flyash is put into high temperature furnace, controls 280 DEG C of temperature, heat treatment 1.5 is small
When, obtain modified coal ash.
Fly ash base heat-insulating material, is prepared via a method which:
Step S10 is weighed the raw material for preparing fly ash base heat-insulating material by above-mentioned parts by weight；
The modified coal ash of above-mentioned parts by weight and portland cement are stirred by step S20, and above-mentioned parts by weight are added
Continue to be stirred 20 minutes after inorfil, obtains pre-composition；
Polyvinyl alcohol, the adhesive of above-mentioned parts by weight are added in the pre-composition obtained to step S20 by step S30, and
Water is poured into mold after being stirred and is press-formed, the technological parameter of extrusion forming are as follows: 150 DEG C of temperature, pressure 9MPa, then pass through
Demoulding, drying, obtain fly ash base heat-insulating material.
Embodiment 4
A kind of fly ash base heat-insulating material and preparation method thereof
The raw material for preparing fly ash base heat-insulating material includes: modified coal ash 65kg, inorfil 12kg, portland cement
5kg, polyvinyl alcohol 8kg, adhesive 9kg.Wherein, the degree of polymerization of polyvinyl alcohol is 1500~2000, inorfil is sodium oxide molybdena
Content be the medium-alkali glass fibre of 12.5wt%, adhesive by aluminium dihydrogen phosphate and acrylic acid ester emulsion according to weight ratio 1:10 group
Solid content at, acrylic acid ester emulsion is 55wt%.
The preparation process of modified coal ash includes:
Step i, by flyash ball milling, sieving, flyash of the screening partial size less than 40 mesh；
Step ii, the ash transfer that step i is obtained are stirred after 12wt% hydrochloric acid solution is added into blender
40 minutes, the weight ratio of hydrochloric acid solution and flyash was 1:6；
Step iii, by step ii, treated that flyash is put into high temperature furnace, controls 320 DEG C of temperature, is heat-treated 2 hours,
Obtain modified coal ash.
Fly ash base heat-insulating material, is prepared via a method which:
Step S10 is weighed the raw material for preparing fly ash base heat-insulating material by above-mentioned parts by weight；
The modified coal ash of above-mentioned parts by weight and portland cement are stirred by step S20, and above-mentioned parts by weight are added
Continue to be stirred 18 minutes after inorfil, obtains pre-composition；
Polyvinyl alcohol, the adhesive of above-mentioned parts by weight are added in the pre-composition obtained to step S20 by step S30, and
Water is poured into mold after being stirred and is press-formed, the technological parameter of extrusion forming are as follows: 200 DEG C of temperature, pressure 10MPa, then pass through
Demoulding, drying, obtain fly ash base heat-insulating material.
Embodiment 5
A kind of fly ash base heat-insulating material and preparation method thereof
The raw material for preparing fly ash base heat-insulating material includes: modified coal ash 58kg, inorfil 11kg, portland cement
4kg, polyvinyl alcohol 5kg, adhesive 6kg.Wherein, the degree of polymerization of polyvinyl alcohol is 1500~2000, inorfil is sodium oxide molybdena
Content be 13wt% medium-alkali glass fibre, adhesive be made of aluminium dihydrogen phosphate and acrylic acid ester emulsion according to weight ratio 1:8,
The solid content of acrylic acid ester emulsion is 50wt%.
The preparation process of modified coal ash includes:
Step i, by flyash ball milling, sieving, flyash of the screening partial size less than 40 mesh；
Step ii, the ash transfer that step i is obtained are stirred after 8wt% hydrochloric acid solution is added into blender
35 minutes, the weight ratio of hydrochloric acid solution and flyash was 1:9；
Step iii, by step ii, treated that flyash is put into high temperature furnace, controls 300 DEG C of temperature, heat treatment 1.5 is small
When, obtain modified coal ash.
Fly ash base heat-insulating material, is prepared via a method which:
Step S10 is weighed the raw material for preparing fly ash base heat-insulating material by above-mentioned parts by weight；
The modified coal ash of above-mentioned parts by weight and portland cement are stirred by step S20, and above-mentioned parts by weight are added
Continue to be stirred 15 minutes after inorfil, obtains pre-composition；
Polyvinyl alcohol, the adhesive of above-mentioned parts by weight are added in the pre-composition obtained to step S20 by step S30, and
Water is poured into mold after being stirred and is press-formed, the technological parameter of extrusion forming are as follows: 180 DEG C of temperature, pressure 8MPa, then pass through
Demoulding, drying, obtain fly ash base heat-insulating material.
Experimental example
Technical progress in order to further illustrate the present invention is now further illustrated using experiment.
Experimental material: the fly ash base heat-insulating material produced of the embodiment of the present invention 1~5.
Experimental method: compare the properties of a variety of materials under square one.
The test result of the fly ash base heat-insulating material of 1. Examples 1 to 5 of table preparation
The experimental results showed that the thermal coefficient of fly ash base heat-insulating material prepared by the present invention 0.029w/ (mk)~
Between 0.0367w/ (mk), apparent density is in 100kg/m3~135kg/m3In range, compression strength is greater than 35MPa.
These are only the preferred embodiment of the present invention, is not intended to restrict the invention, for those skilled in the art
For member, the invention may be variously modified and varied.All within the spirits and principles of the present invention, it is made it is any modification,
Equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of fly ash base heat-insulating material, which is characterized in that prepare the raw material of the fly ash base heat-insulating material by its weight
Part includes: 50 parts~65 parts of modified coal ash, 8 parts~14 parts of inorfil, 2 parts~6 parts, 2 parts of polyvinyl alcohol of portland cement
~8 parts, 2.5 parts~9 parts of adhesive.
2. fly ash base heat-insulating material according to claim 1, which is characterized in that the preparation process of the modified coal ash
Include:
Step i, by flyash ball milling, sieving, flyash of the screening partial size less than 40 mesh；
Step ii, the ash transfer that step i is obtained stir after 5wt%~12wt% hydrochloric acid solution is added into blender
Mixing 20 minutes~45 minutes；
Step iii, by step ii, treated that flyash is put into high temperature furnace, controls 260 DEG C~350 DEG C of temperature, heat treatment 0.5
Hour~2 hours, obtain modified coal ash.
3. fly ash base heat-insulating material according to claim 2, which is characterized in that in step ii, the hydrochloric acid solution with
The weight ratio of flyash is 1:6~12.
4. fly ash base heat-insulating material according to claim 1, which is characterized in that the degree of polymerization of the polyvinyl alcohol is
1500~2000.
5. fly ash base heat-insulating material according to claim 1, which is characterized in that the inorfil is sodium oxide content
For the medium-alkali glass fibre of 12wt%~14wt%.
6. fly ash base heat-insulating material according to claim 1, which is characterized in that described adhesive by aluminium dihydrogen phosphate and
Acrylic acid ester emulsion is formed according to weight ratio 1:6~10.
7. fly ash base heat-insulating material according to claim 6, which is characterized in that the solid content of the acrylic acid ester emulsion
For 45wt%~55wt%.
8. fly ash base heat-insulating material according to claim 1, which is characterized in that prepare the fly ash base heat-insulating material
Raw material by its parts by weight include: 58 parts of modified coal ash, it is 11 parts of inorfil, 4 parts of portland cement, 5 parts of polyvinyl alcohol, viscous
6 parts of mixture.
9. it is a kind of according to claim 1~any one of 8 described in fly ash base heat-insulating material preparation method, feature exists
In, comprising the following steps:
Step S10 is weighed the raw material for preparing fly ash base heat-insulating material by the parts by weight；
The modified coal ash of the parts by weight and portland cement are stirred by step S20, and the inorganic of the parts by weight is added
Continue to be stirred 10 minutes~20 minutes after fiber, obtains pre-composition；
Step S30, polyvinyl alcohol, the adhesive of the parts by weight are added in the pre-composition obtained to step S20, and Yi Jishui is stirred
It mixes to pour into mold after mixing and be press-formed, demoulded, dried, obtain fly ash base heat-insulating material.
10. preparation method according to claim 9, which is characterized in that in step S30, the technique of the extrusion forming is joined
Number are as follows: 150 DEG C~220 DEG C of temperature, pressure 5MPa~10MPa.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110304892A (en) * | 2019-05-27 | 2019-10-08 | 昌鑫生态科技(陕西)有限公司 | A kind of production technology using Industrial Solid Waste processing heat preserving and insulating material |
| CN110423031A (en) * | 2019-08-22 | 2019-11-08 | 绿材实业有限责任公司 | A kind of method of modifying improving flyash intensity |
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| US4749413A (en) * | 1985-06-17 | 1988-06-07 | E. I. Du Pont De Nemours And Company | Phosphate cement including fly ash for high-strength concrete-like products |
| CN104128352A (en) * | 2014-07-27 | 2014-11-05 | 许盛英 | Acidified fly ash |
| CN104671706A (en) * | 2015-01-30 | 2015-06-03 | 济南大学 | Flexible composite silicate thermal insulation material and preparation method |
| CN106220091A (en) * | 2016-07-25 | 2016-12-14 | 江苏省苏中建设集团股份有限公司 | A kind of thermal insulation concrete of radioprotective anticracking |
| CN107746289A (en) * | 2017-11-09 | 2018-03-02 | 卢松 | A kind of preparation technology of the aerated bricks of corrosion-resistant anti-freezing |
| CN108069667A (en) * | 2017-12-29 | 2018-05-25 | 宜兴市大东方实业有限公司 | A kind of enhanced cement insulation board and preparation method thereof |
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| CN110304892A (en) * | 2019-05-27 | 2019-10-08 | 昌鑫生态科技(陕西)有限公司 | A kind of production technology using Industrial Solid Waste processing heat preserving and insulating material |
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