CN103408283B - Light burning-avoiding heat-insulating material and preparation method thereof - Google Patents
Light burning-avoiding heat-insulating material and preparation method thereof Download PDFInfo
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- CN103408283B CN103408283B CN201310347940.3A CN201310347940A CN103408283B CN 103408283 B CN103408283 B CN 103408283B CN 201310347940 A CN201310347940 A CN 201310347940A CN 103408283 B CN103408283 B CN 103408283B
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- 238000002360 preparation method Methods 0.000 title claims abstract description 10
- 239000011810 insulating material Substances 0.000 title abstract 3
- 239000000463 material Substances 0.000 claims abstract description 34
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 24
- 239000002994 raw material Substances 0.000 claims abstract description 22
- 238000012423 maintenance Methods 0.000 claims abstract description 10
- 239000011230 binding agent Substances 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims abstract description 8
- 238000000465 moulding Methods 0.000 claims abstract description 3
- 150000001875 compounds Chemical class 0.000 claims description 10
- 239000000843 powder Substances 0.000 claims description 10
- 238000003756 stirring Methods 0.000 claims description 8
- 238000007493 shaping process Methods 0.000 claims description 7
- 238000000498 ball milling Methods 0.000 claims description 6
- 239000004568 cement Substances 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical group [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 5
- 229910052782 aluminium Inorganic materials 0.000 claims description 5
- 239000004411 aluminium Substances 0.000 claims description 5
- 239000003795 chemical substances by application Substances 0.000 claims description 5
- 239000004816 latex Substances 0.000 claims description 5
- 229920000126 latex Polymers 0.000 claims description 5
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 3
- 238000010298 pulverizing process Methods 0.000 claims description 3
- 229920003987 resole Polymers 0.000 claims description 3
- 239000003292 glue Substances 0.000 claims description 2
- 239000010440 gypsum Substances 0.000 claims description 2
- 229910052602 gypsum Inorganic materials 0.000 claims description 2
- 235000019353 potassium silicate Nutrition 0.000 claims description 2
- 238000012545 processing Methods 0.000 claims description 2
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 2
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims description 2
- 229920002554 vinyl polymer Polymers 0.000 claims description 2
- 238000009413 insulation Methods 0.000 abstract description 7
- 238000004321 preservation Methods 0.000 abstract description 5
- 238000010276 construction Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 239000000203 mixture Substances 0.000 abstract description 4
- 239000002253 acid Substances 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 abstract description 2
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 230000032683 aging Effects 0.000 abstract 1
- 239000003513 alkali Substances 0.000 abstract 1
- 239000010883 coal ash Substances 0.000 abstract 1
- 238000004134 energy conservation Methods 0.000 abstract 1
- 239000004088 foaming agent Substances 0.000 abstract 1
- 238000002156 mixing Methods 0.000 abstract 1
- 238000002203 pretreatment Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 6
- 239000010881 fly ash Substances 0.000 description 6
- 239000012774 insulation material Substances 0.000 description 4
- 235000011194 food seasoning agent Nutrition 0.000 description 3
- 239000004793 Polystyrene Substances 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 229920002223 polystyrene Polymers 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- 206010006895 Cachexia Diseases 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 229920005830 Polyurethane Foam Polymers 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000001458 anti-acid effect Effects 0.000 description 1
- 230000003712 anti-aging effect Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 239000010451 perlite Substances 0.000 description 1
- 235000019362 perlite Nutrition 0.000 description 1
- 229920006389 polyphenyl polymer Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 239000011496 polyurethane foam Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 208000016318 wasting Diseases 0.000 description 1
Abstract
The invention relates to a light burning-avoiding heat-insulating material and a preparation method thereof, and belongs to the field of heat-insulating materials for construction. The raw materials used in the method comprise the following compositions in mass percent: 40-50% of low-grade kieselguhr, 35-45% of a binding agent A, 5-10% of coal ash, 5-10% of a binding agent B, and 0.2-0.5% of a foaming agent. The manufacturing technology comprises the steps of raw material pre-treatment, material blending, molding and maintenance. According to the invention, the heat preservation material prepared by adopting the method has the characteristics of light weight, high strength, small heat conductivity coefficient, heat preservation, thermal insulation, excellent sound-proof performance, high temperature resistance, aging resistance, acid and alkali resistance, zero radioactivity, environmental protection, energy conservation and the like.
Description
Technical field
The present invention relates to a kind of light non-fired lagging material and preparation method thereof, belong to building thermal insulation material field.
Background technology
The diatomite that the present invention adopts is a kind of natural mineral raw deposited by the remains of unicellular waterplant diatom.The formation of diatomite ore experienced by the geological transformation of up to ten thousand years.The diatomite reserves of China are very large, but the i.e. one-level diatomite of high-quality is reducing gradually through constantly exploiting its content for many years.According to investigations, being exploited rear remaining most low-grade diatomite (silicone content is less than or equal to 85%) is dropped idle, not only takies a large amount of places, also affects environment simultaneously, cause a large amount of wastings of resources, therefore low-grade diatomaceous exploitation and use are a great problems faced at present.
Lagging material relatively more conventional on current building heat preservation market and feature have: expansion polyphenyl plate (EPS plate), high insulating effect, low price, but intensity is slightly poor; Extruded polystyrene board (XPS plate), better heat preservation, intensity is high, humidity, price, and during construction, surface needs process; Rock cotton board, fire prevention, fire-retardant, water absorbability is large, and heat insulation effect is poor; Adhesive powder-polystyrene granule thermal insulation mortar, good flame resistance, waste recovery, heat insulation effect is undesirable, high to construction requirement; Polyurethane foam material, good waterproof performance, high insulating effect, intensity is high, and price is more expensive; The slurry fire lines such as perlite are good, high-temperature-resistant thermal-insulation weak effect, and water-absorbent is high, but price is more expensive.
Although above-mentioned organic heat-insulating sheet material good heat insulating, inflammable, to there is fire line difference shortcoming, therefore in the urgent need to the inorganic building thermal insulation material of development of new.
Summary of the invention
The present invention seeks to low-grade diatomite for main raw material, flyash is auxiliary material, selects rational binding agent and whipping agent, makes light heat insulation material through foaming.
A preparation method for light non-fired lagging material, the method is raw materials used, by mass percentage, is made up of following component:
Wherein, described binding agent A is water glass, cement or gypsum; Binding agent B is white glue with vinyl, latex powder or resol.
Each component sum of above-mentioned raw materials is 100%.
Low-grade diatomite of the present invention is remaining mixture after the exploitation of one-level diatomite.
Light non-fired lagging material preparation method of the present invention is raw materials used comprises low-grade diatomite, and low-grade diatomite makes to form duct in the material obtained, and can strengthen its heat insulation effect.Utilize low-grade diatomite to prepare light non-fired lagging material, not only can be low-grade diatomaceous utilization and propose new purposes, the light heat insulation material simultaneously produced has good fire resistance, simultaneously energy-conserving and environment-protective in production process.
Light non-fired lagging material preparation method of the present invention is raw materials used also comprises whipping agent.The collaborative use of whipping agent, low-grade diatomite, flyash and binding agent in the present invention, makes gained lagging material inside form a large amount of ducts, thus ensures the insulation of resulting materials and the performance of lightweight.
The preferred aluminium powder of whipping agent of the present invention.
The preferred described diatomite granularity of preparation method of light non-fired lagging material of the present invention is less than 40 orders.
The preparation method of light non-fired lagging material of the present invention, preferably includes following processing step:
1. raw materials pretreatment: low-grade diatomite carried out drying, pulverizing, ball milling, cross 40 mesh sieves, for subsequent use;
2. prepare burden: weigh whole raw material according to formula, all raw materials are mixed, obtains compound;
3. shaping and maintenance: by step 2. gained compound at normal temperatures by compound and quality than 1:1 add water stir after pour mould molding into, the demoulding after 1d, dry after maintenance 7d ~ 28d at normal temperatures, both.
In aforesaid method, step 2. preferred ball mill ball milling 1 ~ 2h that raw material is placed in mix.
3. step preferably carries out as follows: by step 2. gained compound pour container into, to add water than 1:1 by compound and quality at normal temperatures and stir, to entering mould and vibrating mould makes pulp surface smooth after stirring; The demoulding after shaping 1d in a mold, after maintenance 7d ~ 28d, seasoning both obtained at normal temperatures.
Another object of the present invention is to provide the lagging material prepared by aforesaid method.
The aperture size of lagging material of the present invention is less than 1mm, porosity 40 ~ 50%, and ultimate compression strength is 0.3 ~ 0.4MPa, and folding strength is 0.1 ~ 0.2MPa, and density is 0.30 ~ 0.35g/cm
3, thermal conductivity≤0.07W/ (mK).
The invention has the beneficial effects as follows: the inorganic light weight baking-free heat preservation material of construction of manufacture of the present invention has lightweight, the feature such as intensity is high, thermal conductivity is little, heat insulating, sound-proofing properties are good, high temperature resistant, anti-aging, acid and alkali-resistance is "dead", environmental protection and energy saving.The main raw material used is: low-grade diatomite and flyash, and they all belong to industrial solid castoff, and cost is low, wide material sources and without particular requirement.Current low-grade diatomite material rich reserves, its wide material sources, cheap.This both opened new approach for low-grade diatomaceous exploitation, achieved low cost again, and the production of free of contamination novel light lagging material, has good economic benefit and social benefit.
Accompanying drawing explanation
Fig. 1 is the shape appearance figure that the light non-fired lagging material of embodiment 1 gained amplifies 50 times under Japanese JSM-6460LV scanning electronic microscope;
Fig. 2 is the shape appearance figure that the light non-fired lagging material of embodiment 1 gained amplifies 100 times under Japanese JSM-6460LV scanning electronic microscope;
Can find out that from Fig. 1 and 2 the pore distribution formed in light non-fired lagging material is substantially even, pore size is less than 1mm.
Embodiment
Following non-limiting example can make the present invention of those of ordinary skill in the art's comprehend, but does not limit the present invention in any way.
Test method described in following embodiment, if no special instructions, is ordinary method; Described reagent and material, if no special instructions, all can obtain from commercial channels, or can prepare in conventional manner.
Following embodiment diatomite used is the low-grade diatomite that is produced from Linjiang, and it is remaining mixture after the exploitation of one-level diatomite; Latex powder: model is SWF-05, Shanxi Sanwei Group Co., Ltd.; Resol: product grade 201, Xinhua Resin Factory, Shanghai; Cement: model is P.O42.5, Dalian Cement Group; Aluminium powder: analytical pure, Tianjin recovery fine chemistry industry institute produces; Flyash: Dalian Heat Power Group.
Embodiment 1
1. raw materials pretreatment: low-grade diatomite carried out drying, pulverizing, ball milling, cross 40 mesh sieves, for subsequent use;
2. batching: weigh whole raw material (low-grade diatomite: 35g, cement: 32g, flyash: 4.5g, latex powder: 5g, aluminium powder: 0.3g) according to formula, then all arrives the raw material 76.8g after weighing into ball mill and ball milling 1h is mixed to even, stand-by.
3. shaping and maintenance: pour compound 76.8g after grinding evenly into container, the water adding 76.8g at normal temperatures stirs, to entering mould and vibrating mould makes pulp surface smooth after stirring; The demoulding after shaping 1d in a mold, after maintenance 7d, seasoning both obtained at normal temperatures.
Gained lagging material after testing aperture size is less than 1mm, porosity 45%, and ultimate compression strength is 0.38MPa, and folding strength is 0.14MPa, and density is 0.31g/cm
3, thermal conductivity is 0.067W/ (mK).
Embodiment 2
1. raw materials pretreatment: identical with embodiment 1;
2. batching: weigh whole raw material (low-grade diatomite: 35g, cement: 30g, flyash: 4.5g, latex powder: 6g, aluminium powder: 0.3g) according to formula, then all arrives the raw material 75.8g after weighing into ball mill and ball milling 1.5h is mixed to even, stand-by.
3. shaping and maintenance: pour compound 75.8g after grinding evenly into container, the water adding 75.8g at normal temperatures stirs, to entering mould and vibrating mould makes pulp surface smooth after stirring; The demoulding after shaping 1d in a mold, after maintenance 10d, seasoning both obtained at normal temperatures.
Gained lagging material after testing aperture size is less than 1mm, porosity 42%, and ultimate compression strength is 0.40MPa, and folding strength is 0.15MPa, and density is 0.33g/cm
3, thermal conductivity 0.070W/ (mK).
Claims (3)
1. a preparation method for light non-fired lagging material, comprises following processing step:
1. raw materials pretreatment: low-grade diatomite carried out drying, pulverizing, ball milling, cross 40 mesh sieves, for subsequent use;
2. prepare burden: weigh whole raw material according to formula, all raw materials are mixed, obtains compound;
3. shaping and maintenance: by step 2. gained compound at normal temperatures by compound and quality than 1:1 add water stir after pour mould molding into, the demoulding after 1d, dry after maintenance 7d ~ 28d at normal temperatures, both,
Raw materials used, by mass percentage, be made up of following component:
Wherein, described binding agent A is water glass, cement or gypsum; Binding agent B is white glue with vinyl, latex powder or resol; Described whipping agent is aluminium powder.
2. the light non-fired lagging material prepared by method described in claim 1.
3. lagging material according to claim 2, is characterized in that: the aperture size of described lagging material is less than 1mm, porosity 40 ~ 50%, and ultimate compression strength is 0.3 ~ 0.4MPa, and folding strength is 0.1 ~ 0.2MPa, and density is 0.30 ~ 0.35g/cm
3, thermal conductivity≤0.07W/ (mK).
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| CN201310347940.3A CN103408283B (en) | 2013-08-08 | 2013-08-08 | Light burning-avoiding heat-insulating material and preparation method thereof |
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| CN201310347940.3A CN103408283B (en) | 2013-08-08 | 2013-08-08 | Light burning-avoiding heat-insulating material and preparation method thereof |
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| CN103408283B true CN103408283B (en) | 2015-07-01 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106587747A (en) * | 2016-11-10 | 2017-04-26 | 南宁市大江保温材料有限公司 | Building thermal-insulation material |
| CN107226622A (en) * | 2017-07-17 | 2017-10-03 | 合肥威斯伏新材料有限公司 | The insulation material and preparation method of a kind of low thermal conductivity |
| CN108455938A (en) * | 2018-05-28 | 2018-08-28 | 苏州佑君环境科技有限公司 | A kind of preparation method of diatomite modified foamed concrete plate |
| CN109400110A (en) * | 2018-12-18 | 2019-03-01 | 沈阳利盟生态新材料有限公司 | A kind of diatomite sintered plate and its preparation process |
| CN113072356A (en) * | 2021-04-20 | 2021-07-06 | 白山市和一硅藻科技有限公司 | Calcination-free plate prepared from diatomite and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2941269B1 (en) * | 1998-08-20 | 1999-08-25 | 核燃料サイクル開発機構 | Cement-based materials for radioactive waste disposal sites |
| CN101456698A (en) * | 2008-10-24 | 2009-06-17 | 北京崇高纳米科技有限公司 | Rapid forming high intensity and high functional diatomite composition and method for making the same |
| CN102979206A (en) * | 2012-11-12 | 2013-03-20 | 青岛科瑞新型环保材料有限公司 | Inorganic thermal mortar composite vacuum heat insulation board and preparation method thereof |
| CN103011725A (en) * | 2012-12-24 | 2013-04-03 | 营口盼盼硅藻土科技有限公司 | Fireproof diatomite plate and fabrication method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08277178A (en) * | 1995-03-31 | 1996-10-22 | Sekisui Chem Co Ltd | Inorganic laminated body |
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2013
- 2013-08-08 CN CN201310347940.3A patent/CN103408283B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2941269B1 (en) * | 1998-08-20 | 1999-08-25 | 核燃料サイクル開発機構 | Cement-based materials for radioactive waste disposal sites |
| CN101456698A (en) * | 2008-10-24 | 2009-06-17 | 北京崇高纳米科技有限公司 | Rapid forming high intensity and high functional diatomite composition and method for making the same |
| CN102979206A (en) * | 2012-11-12 | 2013-03-20 | 青岛科瑞新型环保材料有限公司 | Inorganic thermal mortar composite vacuum heat insulation board and preparation method thereof |
| CN103011725A (en) * | 2012-12-24 | 2013-04-03 | 营口盼盼硅藻土科技有限公司 | Fireproof diatomite plate and fabrication method thereof |
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