CN102452830A - Phosphate cement bond polystyrene foam particle thermal insulating material - Google Patents
Phosphate cement bond polystyrene foam particle thermal insulating material Download PDFInfo
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- CN102452830A CN102452830A CN2010105249879A CN201010524987A CN102452830A CN 102452830 A CN102452830 A CN 102452830A CN 2010105249879 A CN2010105249879 A CN 2010105249879A CN 201010524987 A CN201010524987 A CN 201010524987A CN 102452830 A CN102452830 A CN 102452830A
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Abstract
The invention discloses a phosphate cement bond polystyrene foam particle thermal insulating material. The thermal insulating material disclosed by the invention is prepared by mixing 1 part by mass of phosphate cement powder material and 0.02-0.04 part by mass of polystyrene foam particles with 0.22-0.26 part by mass of water. The preparation method comprises the following steps: firstly, evenly mixing water with the polystyrene foam particles in a stirrer; and then adding the phosphate cement powder material and evenly mixing. The thermal insulating material disclosed by the invention has the advantages of good thermal insulation effect, ideal strength, strong adhesion force and the like, is easy for construction and easy to dry, dose not peel off, and is environmentally-friendly.
Description
Technical field
The present invention relates to structure material, relate to especially that a kind of insulation effect is good, construction easily, desirable, the strong adhesion of intensity, and be easy to mummification and can not peel off, the phosphate cement agglutinating polystyrene foam particles thermal insulation material of environmental protection.
Background technology
Construction industry is the big power consumer in the sector of the national economy, accounts for 25% of national energy consumption greatly.Sustainable development for society and economy; Press for save energy at present, rationally utilize natural resources; Requirement according to national architectural development planning; Building energy conservation has become an important development direction of China's building trade, and this also is to alleviate energy scarcity situation economy, effective means the most simultaneously.Exterior wall heat insulation mainly contains heat-insulating shield and two kinds of forms of adiabatic mortar.Advantages such as the ready-formed heat-insulating shield has light weight, thermal conductivity is low, water-intake rate is low, easy construction, but be not suitable for the thermal insulation of the irregular building part of profile; Adiabatic mortar then can be fit to the site operation of the irregular building part of profile, has light weight equally, characteristics such as thermal conductivity is low, water-intake rate is low, easy construction, can overcome the deficiency of heat-insulating shield.In recent years, China's polystyrene foam (EPS) develops rapidly, and YO has reached more than 50 ten thousand tons, is mostly disposable use, and annual discarded amount reaches ten million cubic metre, and its processing becomes environmentally hazardous white pollution with degrading difficulty.Need from environment protection and comprehensive utilization of resources, can depleted EPS be processed into particle as light skeletal, preparation light concrete and light mortar.
Existing domestic adiabatic mortar development selects for use ordinary Portland cement, slag cement or gypsum etc. as consolidating material usually; Some flyash of the interpolation that has or directly select slag cement for use for example have: bicomponent cement base polystyrene foamed particle adiabatic coating (application number 200610039328.X); Bicomponent gypsum base polystyrene foamed particle adiabatic coating (application number 200610039327.5); A kind of light hollow block with polystyrene particle and preparation method thereof (application number 200410073890.5); The adiabatic mortar (application number 200410053031.X) of polystyrene foam particles; Polystyrene foam grain insulation brick (application number 01140185.0).All add organic binder bond or fiber in the described technical scheme of these documents to increase the intensity and the cohesive force of hardened material, this has not only increased the cost of material, and organic binder bond is toxic mostly, and is harmful to HUMAN HEALTH.
Summary of the invention
Based on above problem, the object of the present invention is to provide that a kind of insulation effect is good, construction easily, desirable, the strong adhesion of intensity, and be easy to mummification and can not peel off, the polystyrene foam particles thermal insulation material of the phosphate cement base of environmental protection.
The present invention realizes through following technical measures, and a kind of phosphate cement agglutinating polystyrene foam particles thermal insulation material is mixed with by phosphate cement powder, polystyrene foam particles and water and forms; The shared mass fraction of each raw material is: 1 part of phosphate cement powder, 0.02～0.04 part of polystyrene foam particles, 0.22～0.26 part in water.
A kind of optimal way of phosphate cement powder formulation by mass fraction is: 2～3 parts in magnesia, 2～3 parts of phosphoric acid salt, 4～6 parts in flyash and retardant are formed for 0.3～0.8 part.
Concrete, by mass fraction be: 2.5～3.0 parts in magnesia, 2～2.5 parts of phosphoric acid salt, 4～5 parts in flyash and retardant are formed for 0.5～0.8 part.
The optimal way of another kind of phosphate cement powder formulation, by mass fraction be: 2～3 parts in magnesia, 2～3 parts of phosphoric acid salt, 4～6 parts of wollastonites and retardant are formed for 0.3～0.8 part.
Concrete, be to be: 4～5 parts of 2.5～3.0 parts in magnesia, 2～2.5 parts of phosphoric acid salt or wollastonites, 0.5～0.8 part of composition of retardant by mass fraction.
Phosphoric acid salt soluble dihydrogen phosphate wherein, perhaps the preferred mass share by the soluble phosphoric acid dihydric salt account for 5～9 parts with soluble phosphoric acid hydrogen disalt account for 1～5 part of blended compsn.
Concrete soluble phosphoric acid dihydric salt is potassium primary phosphate, SODIUM PHOSPHATE, MONOBASIC or primary ammonium phosphate, and soluble phosphoric acid hydrogen disalt is potassium hydrogenphosphate, Sodium phosphate, dibasic or Secondary ammonium phosphate.
The compound of the preferred boron of retardant wherein.Any compsn, the perhaps compsn of boric acid and sodium pentaborate, sodium tetraborate in special preferred boric acid and sodium pentaborate, the sodium tetraborate.
The invention also discloses the preparation method of this phosphate cement agglutinating polystyrene foam particles thermal insulation material: earlier that water and polystyrene foam particles is even in stirrer for mixing, and then adding phosphate cement powder mix is even.
It is 8～21kg/m less than the average tap density of 5mm that the present invention adopts diameter
3Polystyrene foam particles.Magnesia is a kind of or its compsn in reburned magnesia sand (calcining temperature during production is more than 1300 ℃), electrosmelted magnesite clinker, the seawater magnesia.The flyash of mentioning among the present invention is meant low calcium ash flyash, and the fineness of magnesia and flyash is that 45 microns square hole sieves tail over 10% one 40%.It is 10～38 μ m fine powders that wollastonite should adopt median size.Preferably adopt the powder shaped phosphate material, if adopt the granular phosphorus silicate material, its grain diameter≤1.5 millimeter.
Phosphate cement is a kind of through chemically combined gelling material, utilizes the acid-base reaction between superphosphate and basic alkaline earth metal oxide compound and forms.Phosphate cement at room temperature with water generation chemical reaction; Setting and harden subsequently; Final hydrated product has the characteristic of ceramic again, has higher mechanical property and good density and acid-alkali-corrosive-resisting performance, both has been different from ceramic; Also distinguishing to some extent with ordinary Portland cement, is a kind of material between wherein.
Simple to operation when using phosphate cement, its process is similar to ordinary Portland cement.But compare with ordinary Portland cement, phosphate cement has relatively more outstanding following performance: high-strength quick-acting under the normal temperature has hour intensity; Cryogenic temperature condensation speed is fast, can in the subzero temperature environment, condense rapidly; High with the bonding strength of old concrete, need not re-use interface adhesive; Wear resistance and frost resistance are good, and drying shrinkage is little.Therefore, phosphate cement can be used for repairing, the rush construction aspect of military engineering.Aspect civilian, phosphate cement also is well-adapted material to the quick repairing of motorway, airfield runway, municipal major trunk roads.
Flyash and wollastonite can be regulated color, time of coagulation, flowability and the intensity of aqueous phosphate cement-based material.Through improving the flowability of aqueous phosphate cement-based material,, improve the adhesive property of aqueous phosphate cement-based material keeping to reduce water-cement ratio under the mobile constant situation.Also can reduce the cost of aqueous phosphate mud material.
The present invention has abandoned organic sizing agent and filamentary material; Thereby improved the feature of environmental protection; Phosphate concrete and polystyrene foam particles with high-strength effect realize that good knot gathers, and make the insulation effect of lagging material of formation good, corrosion-resistant, cracking resistance, be prone to construction and easy mummification; The present invention is a kind of strong adhesion, be not prone to the thermal insulation material for building that strips off.
Embodiment
Below in conjunction with embodiment the present invention is done further explain.
Embodiment 1:
Phosphate cement agglutinating polystyrene foam particles thermal insulation material is made up of phosphate cement powder, polystyrene foam particles and water.
Adopting diameter is 8～21kg/m less than the average tap density of 5mm
3Polystyrene foam particles.
The phosphate cement powder is made up of magnesia, phosphoric acid salt, flyash (or wollastonite) and retardant,
What magnesia adopted is the reburned magnesia sand available from east in Shandong Province, Shandong refractory materials ltd, and calcining temperature is 1500 ℃, and wherein content of magnesia is 91%, and fineness is that 45 microns square hole sieves tail over 15%; Used phosphate material, all available from Wuhan China wound chemical industry ltd, contained active substance content is 98%, is particulate state, and granularity≤2.0mm is levigate before the use; Flyash is the low calcium fly ash of mother gulf, Shenzhen power plant, belongs to the secondary ash, and fineness is that 45 microns square hole sieves tail over 12%; The wollastonite fine powder is available from south, Jiangxi wollastonite ltd, and median size is 18 μ m.Adopt commercial chemical reagent borax (Tincal) as retardant.The diameter of polystyrene foam particles is less than 5mm, and average tap density is 15kg/m
3Adopt tap water as mixing water.
Preparation phosphate cement agglutinating polystyrene foam particles thermal insulation material; Take by weighing 3 parts in above-mentioned magnesia by mass ratio; 3 parts of the phosphoric acid salt of sodium (SODIUM PHOSPHATE, MONOBASIC and Sodium phosphate, dibasic are to mix at 8: 2 by mass ratio), 4 parts in flyash, 0.02 part of borax; 0.23 part in water, 0.17 part of polystyrene foam particles.
Earlier with water and polystyrene foam particles in stirrer for mixing, make water at the polystyrene foam particles moistened surface, it is even to add phosphate cement powder mix again, then with the uniform material forming mensuration of mix thermal conductivity, ultimate compression strength and unit dry weight.Moulding test block in 30cm * 30cm * 3cm die trial is used to measure thermal conductivity.Moulding test block in being of a size of 10cm * 10cm * 10cm three joint-trial moulds is used to measure ultimate compression strength and unit weight.
Mix compound and moulding examination body was measured examination body performance after 7 days as stated above, and thermal conductivity is 0.0995W/mK, and ultimate compression strength is 680kPa, and unit dry weight is 560kg/m
3
Embodiment 2:
Phosphate cement agglutinating polystyrene foam particles thermal insulation material; Material source takes by weighing 2.5 parts in magnesia with embodiment 1 by mass ratio, 2.5 parts of the phosphoric acid salt of potassium (potassium primary phosphate and potassium hydrogenphosphate are to mix at 8: 2 by mass ratio); 5 parts in flyash; 0.02 part of borax, 0.25 part in water, 0.02 part of polystyrene foam particles.
According to embodiment 1 described method mix compound and moulding examination body, after 7 days, measure examination body performance, thermal conductivity is 0.0851W/mK, and ultimate compression strength is 853kPa, and unit dry weight is 490kg/m
3
Embodiment 3:
Phosphate cement agglutinating polystyrene foam particles thermal insulation material; Material source takes by weighing 2.4 parts in magnesia with embodiment 1 by mass ratio, 2.6 parts of the phosphoric acid salt of ammonium (primary ammonium phosphate and Secondary ammonium phosphate are to mix at 8: 2 by mass ratio); 5 parts in flyash; 0.02 part of borax, 0.27 part in water, 0.023 part of polystyrene foam particles.
According to embodiment 1 described method mix compound and moulding examination body, after 7 days, measure examination body performance, thermal conductivity is 0.0911W/mK, and ultimate compression strength is 640kPa, and unit dry weight is 418kg/m
3
Embodiment 4:
Phosphate cement agglutinating polystyrene foam particles thermal insulation material; Material source takes by weighing 3 parts in magnesia with embodiment 1 by mass ratio, 3 parts of the phosphoric acid salt of sodium (SODIUM PHOSPHATE, MONOBASIC and Sodium phosphate, dibasic are to mix at 8: 2 by mass ratio); 4 parts of wollastonites; 0.04 part of borax, 0.25 part in water, 0.017 part of polystyrene foam particles.
According to embodiment 1 described method mix compound and moulding examination body, after 7 days, measure examination body performance, thermal conductivity is 0.1558W/mK, and ultimate compression strength is 1250kPa, and unit dry weight is 680kg/m
3
Embodiment 5:
Phosphate cement agglutinating polystyrene foam particles thermal insulation material, material source take by weighing 2.7 parts in magnesia with embodiment 1 by mass ratio, 2.7 parts of potassium primary phosphates, 4.6 parts of wollastonites, 0.04 part of borax, 0.27 part in water, 0.02 part of polystyrene foam particles;
According to embodiment 1 described method mix compound and moulding examination body, after 7 days, measure examination body performance, thermal conductivity is 0.1391W/mK, and ultimate compression strength is 881kPa, and unit dry weight is 603kg/m
3
Embodiment 6:
Phosphate cement agglutinating polystyrene foam particles thermal insulation material, material source take by weighing 2.3 parts in magnesia with embodiment 1 by mass ratio, 2.3 parts of potassium primary phosphates, 5.4 parts of wollastonites, 0.04 part of borax, 0.23 part in water, 0.023 part of polystyrene foam particles.
According to embodiment 1 described method mix compound and moulding examination body, after 7 days, measure examination body performance, thermal conductivity is 0.1136W/mK, and ultimate compression strength is 670kPa, and unit dry weight is 589kg/m
3
Embodiment 7:
Phosphate cement agglutinating polystyrene foam particles thermal insulation material; Material source takes by weighing 2.2 parts in magnesia with embodiment 1 by mass ratio, 2.2 parts of the phosphoric acid salt of sodium (SODIUM PHOSPHATE, MONOBASIC and Sodium phosphate, dibasic are to mix at 8: 2 by mass ratio); 5.6 parts in flyash; 0.06 part of borax, 0.27 part in water, 0.017 part of polystyrene foam particles.
According to embodiment 1 described method mix compound and moulding examination body, after 7 days, measure examination body performance, thermal conductivity is 0.1340W/mK, and ultimate compression strength is 935kPa, and unit dry weight is 664kg/m
3
Embodiment 8:
Phosphate cement agglutinating polystyrene foam particles thermal insulation material, material source take by weighing 2.0 parts in magnesia with embodiment 1 by mass ratio, 2.0 parts of potassium primary phosphates, 6 parts in flyash, 0.06 part of borax, 0.23 part in water, 0.02 part of polystyrene foam particles;
According to embodiment 1 described method mix compound and moulding examination body, after 7 days, measure examination body performance, thermal conductivity is 0.1195W/mK, and ultimate compression strength is 676kPa, and unit dry weight is 537kg/m
3
Embodiment 9:
Phosphate cement agglutinating polystyrene foam particles thermal insulation material, material source are with embodiment 1, according to embodiment 1 described material preparation phosphate cement agglutinating polystyrene foam particles thermal insulation material of the present invention; Take by weighing 2.0 parts in magnesia by mass ratio; 2.0 parts of the phosphoric acid salt of ammonium (primary ammonium phosphate and Secondary ammonium phosphate are to mix at 8: 2 by mass ratio), 6 parts of wollastonites, 0.06 part of borax; 0.25 part in water, 0.023 part of polystyrene foam particles.
According to embodiment 1 described method mix compound and moulding examination body, after 7 days, measure examination body performance, thermal conductivity is 0.1005W/mK, and ultimate compression strength is 563kPa, and unit dry weight is 608kg/m
3
More than be that it is set forth to phosphate cement agglutinating polystyrene foam particles thermal insulation material of the present invention and preparation method thereof; Be used for helping to understand the present invention; But embodiment of the present invention is not restricted to the described embodiments; Any change that does not deviate under the principle of the invention to be done, modification, substitute, combination, simplify, all should be the substitute mode of equivalence, be included within protection scope of the present invention.
Claims (10)
1. phosphate cement agglutinating polystyrene foam particles thermal insulation material is characterized in that: be mixed with by phosphate cement powder, polystyrene foam particles and water and form; The shared mass fraction of each raw material is: 1 part of phosphate cement powder, 0.02～0.04 part of polystyrene foam particles, 0.22～0.26 part in water.
2. phosphate cement agglutinating polystyrene foam particles thermal insulation material according to claim 1, it is characterized in that: said phosphate cement powder by mass fraction is: 2～3 parts in magnesia, 2～3 parts of phosphoric acid salt, 4～6 parts in flyash and retardant are formed for 0.3～0.8 part.
3. phosphate cement agglutinating polystyrene foam particles thermal insulation material according to claim 2, it is characterized in that: said phosphate cement powder by mass fraction is: 2.5～3.0 parts in magnesia, 2～2.5 parts of phosphoric acid salt, 4～5 parts in flyash and retardant are formed for 0.5～0.8 part.
4. phosphate cement agglutinating polystyrene foam particles thermal insulation material according to claim 1, it is characterized in that: said phosphate cement powder by mass fraction is: 2～3 parts in magnesia, 2～3 parts of phosphoric acid salt, 4～6 parts of wollastonites and retardant are formed for 0.3～0.8 part.
5. phosphate cement agglutinating polystyrene foam particles thermal insulation material according to claim 4; It is characterized in that: said phosphate cement powder is to be by mass fraction: 2.5～3.0 parts in magnesia, 2～2.5 parts of phosphoric acid salt, 4～5 parts of wollastonites, 0.5～0.8 part of composition of retardant.
6. phosphate cement agglutinating polystyrene foam particles thermal insulation material according to claim 1; It is characterized in that: said phosphoric acid salt is the soluble phosphoric acid dihydric salt, perhaps for the quality share by the soluble phosphoric acid dihydric salt account for 5～9 parts with soluble phosphoric acid hydrogen disalt account for 1～5 part of blended compsn.
7. phosphate cement agglutinating polystyrene foam particles thermal insulation material according to claim 1; It is characterized in that: said soluble phosphoric acid dihydric salt is potassium primary phosphate, SODIUM PHOSPHATE, MONOBASIC or primary ammonium phosphate, and said soluble phosphoric acid hydrogen disalt is potassium hydrogenphosphate, Sodium phosphate, dibasic or Secondary ammonium phosphate.
8. phosphate cement agglutinating polystyrene foam particles thermal insulation material according to claim 1, it is characterized in that: said retardant is the compound of boron.
9. phosphate cement agglutinating polystyrene foam particles thermal insulation material according to claim 8; It is characterized in that: the compound of said boron is any compsn in boric acid and sodium pentaborate, the sodium tetraborate, the perhaps compsn of boric acid and sodium pentaborate, sodium tetraborate.
10. phosphate cement agglutinating polystyrene foam particles thermal insulation material according to claim 1; It is characterized in that: its preparation method is earlier that water and polystyrene foam particles is even in stirrer for mixing, and then adding phosphate cement powder mix is even.
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Cited By (6)
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| WO2016008591A1 (en) * | 2014-07-18 | 2016-01-21 | Ibv Holding Gmbh | Insulating material and a method for producing same |
| CN107365095A (en) * | 2017-09-13 | 2017-11-21 | 贵州开磷磷石膏综合利用有限公司 | A kind of calcium phosphate Si-Mg cement and preparation method thereof |
| CN107445499A (en) * | 2017-09-13 | 2017-12-08 | 贵州开磷磷石膏综合利用有限公司 | A kind of calcium phosphate Si-Mg cement and preparation method thereof |
| CN107445501A (en) * | 2017-09-13 | 2017-12-08 | 贵州开磷磷石膏综合利用有限公司 | The calcium phosphate Si-Mg cement and its processing method of a kind of modification |
| CN107445502A (en) * | 2017-09-13 | 2017-12-08 | 贵州开磷磷石膏综合利用有限公司 | A kind of water resistance calcium phosphate Si-Mg cement and its processing method |
| CN107601932A (en) * | 2017-09-13 | 2018-01-19 | 贵州开磷磷石膏综合利用有限公司 | A kind of calcium phosphate Si-Mg cement and its processing method |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016008591A1 (en) * | 2014-07-18 | 2016-01-21 | Ibv Holding Gmbh | Insulating material and a method for producing same |
| CN107365095A (en) * | 2017-09-13 | 2017-11-21 | 贵州开磷磷石膏综合利用有限公司 | A kind of calcium phosphate Si-Mg cement and preparation method thereof |
| CN107445499A (en) * | 2017-09-13 | 2017-12-08 | 贵州开磷磷石膏综合利用有限公司 | A kind of calcium phosphate Si-Mg cement and preparation method thereof |
| CN107445501A (en) * | 2017-09-13 | 2017-12-08 | 贵州开磷磷石膏综合利用有限公司 | The calcium phosphate Si-Mg cement and its processing method of a kind of modification |
| CN107445502A (en) * | 2017-09-13 | 2017-12-08 | 贵州开磷磷石膏综合利用有限公司 | A kind of water resistance calcium phosphate Si-Mg cement and its processing method |
| CN107601932A (en) * | 2017-09-13 | 2018-01-19 | 贵州开磷磷石膏综合利用有限公司 | A kind of calcium phosphate Si-Mg cement and its processing method |
| CN107365095B (en) * | 2017-09-13 | 2021-02-02 | 贵州磷镁材料有限公司 | Calcium phosphate silicon magnesium cement and preparation method thereof |
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