CN108358594A - A kind of formula and method preparing thermal insulation board using waste polyurethane - Google Patents

A kind of formula and method preparing thermal insulation board using waste polyurethane Download PDF

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Publication number
CN108358594A
CN108358594A CN201810163465.7A CN201810163465A CN108358594A CN 108358594 A CN108358594 A CN 108358594A CN 201810163465 A CN201810163465 A CN 201810163465A CN 108358594 A CN108358594 A CN 108358594A
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China
Prior art keywords
parts
thermal insulation
waste polyurethane
magnesium
insulation board
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CN201810163465.7A
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Chinese (zh)
Inventor
黄旭江
张攀辉
秦远
刘运浩
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Henan Environmental Protection Industry Co Ltd
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Henan Environmental Protection Industry Co Ltd
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Priority to CN201810163465.7A priority Critical patent/CN108358594A/en
Publication of CN108358594A publication Critical patent/CN108358594A/en
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    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/36Compositions 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 sulfur, sulfides or selenium
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/20Resistance against chemical, physical or biological attack
    • C04B2111/27Water resistance, e.g. waterproof or water-repellant materials
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/20Resistance against chemical, physical or biological attack
    • C04B2111/28Fire resistance, i.e. materials resistant to accidental fires or high temperatures
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/40Porous or lightweight materials
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2201/00Mortars, concrete or artificial stone characterised by specific physical values
    • C04B2201/20Mortars, concrete or artificial stone characterised by specific physical values for the density
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2201/00Mortars, concrete or artificial stone characterised by specific physical values
    • C04B2201/30Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values
    • C04B2201/32Mortars, 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

Abstract

The present invention relates to a kind of formulas and method preparing thermal insulation board using waste polyurethane, include the raw material of following parts by weight:64 112 parts of waste polyurethane particle, 32 78 parts of granules of polystyrene, 94 164 parts of expanded perlite granule, 111 213 parts of waterproofing agent, modified 1,600 2200 parts of magnesium oxysulfide concrete slurry, 200 300 parts of additive;The method for preparing thermal insulation board using waste polyurethane, includes the following steps:(1)Aggregate processing;(2)Modified magnesium oxysulfide concrete slurry configuration;(3)It is prepared by thermal insulation mortar;(4)Keep the temperature sheet metal forming;The present invention is using waste polyurethane particle, granules of polystyrene and expanded perlite as light filling aggregate, magnesium oxysulfide concrete is cementitious material, separately add corresponding modifying agent and other additives, it is higher to which fire-protection rating be made, the preferable novel environment-friendly insulating plate of heat-insulating property, and unit weight is lighter, is readily transported.

Description

A kind of formula and method preparing thermal insulation board using waste polyurethane
Technical field
The invention belongs to thermal insulation board technical fields, and in particular to it is a kind of using waste polyurethane prepare thermal insulation board formula and Method.
Background technology
In recent years, the learies of China's refrigerator are growing day by day, this also has led to producing in scrapping process a large amount of The recovery and treatment method of waste polyurethane thermal insulation material, traditional waste polyurethane material is landfill method and burning method, because at it It manages and degrades difficult and environment is made to be contaminated significantly.For the needs of environmental protection and comprehensive utilization of resources, refrigerator is torn open The waste polyurethane material generated in solution preocess carries out processing, and building exterior wall heat preserving plate is prepared as heat preservation lightweight aggregate, It while obtaining qualified products, is not only recycled waste polyurethane material, also effectively reduces thermal insulation board cost of manufacture.
Heat-insulating mortar exterior wall heat insulation system is mainly with inorganic lightweight material(Glass bead, expanded perlite, haydite etc.)Or Organic light material(Granules of polystyrene, phenolic resin etc.)For heat preserving aggregate, using cement as major gelled material, another addition must The modifying moieties and additive wanted are made different grades of thermal insulation board through being mixed, are applied to building exterior wall heat preserving.Simple profit It uses the waste polyurethane particle scrapped in refrigerator to make thermal insulation board as aglite and is unable to high temperature resistant, flame retardant effect is poor, and And heat conductivility can not reach requirement.
Invention content
Problem in view of the prior art, the present invention provides a kind of formula and sides preparing thermal insulation board using waste polyurethane Method.
The technical proposal of the invention is realized in this way:The formula of thermal insulation board is prepared using waste polyurethane, including following The raw material of parts by weight:64-112 parts of waste polyurethane particle, 32-78 parts of granules of polystyrene, expanded perlite granule 94-164 Part, 111-213 parts of waterproofing agent, modified 1600-2200 parts of magnesium oxysulfide concrete slurry, 200-300 parts of additive.
The modification magnesium oxysulfide concrete slurry includes the raw material of following parts by weight:900-1250 parts of magnesia powder, sulfuric acid 250-400 parts of magnesium powder, 450-550 parts of tap water, wherein Adlerika Baume degrees are 26-28 ° of B é.
The additive includes the raw material of following parts by weight:10-15 parts of cracking resistance swelling fiber waterproofing agent powder, hydroxide 10-15 parts of magnesium fire retardant, 160-250 parts of foaming agent, 10-15 parts of inorganic glass fiber, 2-3 parts of cellulose ether and modifying agent 8- 15 parts, modifying agent is magnesium oxysulfide concrete Special modifier.
The waste polyurethane grain graininess is 4-6mm, and expanded perlite granule granularity is 2-4mm, polystyrene Grain granularity is 0.5-1mm.
The waste polyurethane grain density is 28Kg/m3, expanded perlite granule density is 78Kg/m3, polystyrene Grain density is 27Kg/m3
The foaming agent is the animal/vegetable protein composite foamable agent for magnesium oxysulfide concrete.
The method for preparing thermal insulation board using waste polyurethane, includes the following steps:
(1)Aggregate processing:Waste polyurethane particle and expanded perlite granule are surface-treated respectively, using liquid water-proofing Agent carries out spray water proofing processing to it, and appropriate powdered magnesia, waste polyurethane particle are added after its surface is no longer entirely wetted Appropriate flame retardant of magnesium hydroxide is separately added, so that particle surface is wrapped up one layer its spray form Adlerika again after stirring evenly Magnesium oxysulfide slurry, after package treated aggregate is two hours dry in the baking oven that temperature is 105 DEG C, in waste polyurethane particle One layer of magnesium oxysulfide shell is formed with perlite particle surface;
(2)Modified magnesium oxysulfide concrete slurry configuration:Sulfuric acid magnesium powder is taken to be added in tap water, with 1000-1200 in dispersion machine Turn/rotating speed the rapid dispersion of min 15-20 minutes, so that sulfuric acid magnesium powder is fully dissolved, magnesia powder is added to the sulfuric acid prepared In magnesium solution, then continues to stir 20-25min with the rotating speed of 800-1000 turns/min, modified magnesium oxysulfide is made after stirring evenly Cement slurry;
(3)It is prepared by thermal insulation mortar:By the cracking resistance swelling fiber waterproofing agent powder, inorganic glass fiber and fiber of certain mass part Plain ether and step(1)In the aggregate handled well be uniformly mixed, be added in blender, then add the modification magnesium oxysulfide water prepared Material-mud and magnesium oxysulfide concrete Special modifier are sufficiently stirred 10-15min, after stirring evenly with the rotating speed of 40-50 turns/min Suitable foaming agent is added, continues to obtain magnesium oxysulfide concrete base composite thermal insulation mortar after stirring 5min;
(4)Keep the temperature sheet metal forming:The magnesium oxysulfide concrete base composite thermal insulation mortar prepared is put into grinding tool, is used in combination after rolling compacting Spatula smoothes out molding, is placed in and conserves demoulding in one day at room temperature, and 28d is then conserved in 25 DEG C of insulating box obtains thermal insulation board.
The step(1)The parts by weight of the liquid waterproof agent of middle waste polyurethane surface spray shape are 32-50 parts, powder The parts by weight of shape magnesia are 70-100 parts, and the parts by weight of flame retardant of magnesium hydroxide are 10-15 parts, the weight of Adlerika It is 75-100 parts to measure number, and Adlerika Baume degrees is 26-28 ° of B é.
The step(1)80-140 parts of the liquid waterproof agent of middle expanded perlite surface spray shape, powdered magnesia Parts by weight are 80-120 parts, and the parts by weight of sulfuric acid solution are 85-100 parts, and Adlerika Baume degrees is 26-28 ° of B é.
Technical scheme of the present invention has following good effect:The present invention with waste polyurethane particle, granules of polystyrene and Expanded perlite is light filling aggregate, and magnesium oxysulfide concrete is cementitious material, separately adds corresponding modifying agent and other additives, It is higher to which fire-protection rating be made, the preferable novel environment-friendly insulating plate of heat-insulating property, and also unit weight is lighter, is readily transported.
Specific implementation mode
The specific implementation mode of the present invention is further described with reference to embodiment, following embodiment is used for more Clearly illustrate technical scheme of the present invention, and protection scope of the present invention cannot be limited with this.
Embodiment 1:The formula of thermal insulation board is prepared using waste polyurethane, includes the raw material of following parts by weight:Waste and old poly- ammonia Ester particle 84g, granules of polystyrene 34g, expanded perlite granule 140g, waterproofing agent 192g, modified magnesium oxysulfide concrete slurry 1935g, additive 225g.
The modification magnesium oxysulfide concrete slurry includes the raw material of following parts by weight:1050 parts of magnesia powder, sulfuric acid magnesium powder 380g, tap water 505g, wherein Adlerika Baume degrees are 28 ° of B é.The additive includes the raw material of following parts by weight: Cracking resistance swelling fiber waterproofing agent powder 10g, flame retardant of magnesium hydroxide 15g, foaming agent 180g, inorganic glass fiber 10g, cellulose Ether 2g and modifying agent 8g, modifying agent are magnesium oxysulfide concrete Special modifier.The waste polyurethane grain graininess is 4- 6mm, expanded perlite granule granularity are 2-4mm, and granules of polystyrene granularity is 0.5-1mm.The waste polyurethane particle Density is 28Kg/m3, expanded perlite granule density is 78Kg/m3, granules of polystyrene density is 27Kg/m3.The foaming Agent is the animal/vegetable protein composite foamable agent for magnesium oxysulfide concrete.
The method for preparing thermal insulation board using waste polyurethane, includes the following steps:
(1)Aggregate processing:Waste polyurethane particle and expanded perlite granule are surface-treated respectively, using liquid water-proofing Agent carries out spray water proofing processing to it, and appropriate powdered magnesia, waste polyurethane particle are added after its surface is no longer entirely wetted Appropriate flame retardant of magnesium hydroxide is separately added, so that particle surface is wrapped up one layer its spray form Adlerika again after stirring evenly Magnesium oxysulfide slurry, after package treated aggregate is two hours dry in the baking oven that temperature is 105 DEG C, in waste polyurethane particle One layer of magnesium oxysulfide shell is formed with perlite particle surface;
(2)Modified magnesium oxysulfide concrete slurry configuration:Sulfuric acid magnesium powder is taken to be added in tap water, with 1000-1200 in dispersion machine Turn/rotating speed the rapid dispersion of min 15-20 minutes, so that sulfuric acid magnesium powder is fully dissolved, magnesia powder is added to the sulfuric acid prepared In magnesium solution, then continues to stir 20-25min with the rotating speed of 800-1000 turns/min, modified magnesium oxysulfide is made after stirring evenly Cement slurry;
(3)It is prepared by thermal insulation mortar:By the cracking resistance swelling fiber waterproofing agent powder, inorganic glass fiber and fiber of certain mass part Plain ether and step(1)In the aggregate handled well be uniformly mixed, be added in blender, then add the modification magnesium oxysulfide water prepared Material-mud and magnesium oxysulfide concrete Special modifier are sufficiently stirred 10-15min, after stirring evenly with the rotating speed of 40-50 turns/min Suitable foaming agent is added, continues to obtain magnesium oxysulfide concrete base composite thermal insulation mortar after stirring 5min;
(4)Keep the temperature sheet metal forming:The magnesium oxysulfide concrete base composite thermal insulation mortar prepared is put into grinding tool, is used in combination after rolling compacting Spatula smoothes out molding, is placed in and conserves demoulding in one day at room temperature, and 28d is then conserved in 25 DEG C of insulating box obtains thermal insulation board.
The step(1)The parts by weight of the liquid waterproof agent of middle waste polyurethane surface spray shape are 42g, powdery oxygen The parts by weight for changing magnesium are 100g, and the parts by weight of flame retardant of magnesium hydroxide are 15g, and the parts by weight of Adlerika are 85g, Adlerika Baume degrees is 28 ° of B é.The step(1)The liquid waterproof agent 140g of middle expanded perlite surface spray shape, The parts by weight of powdered magnesia are 100g, and the parts by weight of sulfuric acid solution are 85g, and Adlerika Baume degrees is 28 ° of B é.
According to the formula and thermal insulation board unit weight≤280Kg/m for producing of method in the present embodiment3, thermal coefficient≤ 0.06W/(m•K), heat-insulating property is preferable, other properties are satisfied by the requirement of building exterior wall heat preserving plate, and gross calorific value≤ 2.5MJ/Kg, fire growth rate FIGRAO.2MJ≤100W/S, fire prevention and combustibility are preferable, can reach national A2 grades and prevent Fiery standard can be applied to external wall of high-rise building thermal insulation board.
Embodiment 2:The formula of thermal insulation board is prepared using waste polyurethane, includes the raw material of following parts by weight:Waste and old poly- ammonia Ester particle 84g, granules of polystyrene 50g, expanded perlite granule 94g, waterproofing agent 146g, modified magnesium oxysulfide concrete slurry 1885g, additive 245g.
The modification magnesium oxysulfide concrete slurry includes the raw material of following parts by weight:Magnesia powder 1000g sulfuric acid magnesium powders 365g, tap water 520g, wherein Adlerika Baume degrees are 26 ° of B é.The additive includes the raw material of following parts by weight: Cracking resistance swelling fiber waterproofing agent powder 10g flame retardant of magnesium hydroxide 15g, foaming agent 200g, inorganic glass fiber 10g, cellulose Ether 2g and modifying agent 8g, modifying agent are magnesium oxysulfide concrete Special modifier.The waste polyurethane grain graininess is 4- 6mm, expanded perlite granule granularity are 2-4mm, and granules of polystyrene granularity is 0.5-1mm.The waste polyurethane particle Density is 28Kg/m3, expanded perlite granule density is 78Kg/m3, granules of polystyrene density is 27Kg/m3.The foaming Agent is the animal/vegetable protein composite foamable agent for magnesium oxysulfide concrete.
The method for preparing thermal insulation board using waste polyurethane, includes the following steps:
(1)Aggregate processing:Waste polyurethane particle and expanded perlite granule are surface-treated respectively, using liquid water-proofing Agent carries out spray water proofing processing to it, and appropriate powdered magnesia, waste polyurethane particle are added after its surface is no longer entirely wetted Appropriate flame retardant of magnesium hydroxide is separately added, so that particle surface is wrapped up one layer its spray form Adlerika again after stirring evenly Magnesium oxysulfide slurry, after package treated aggregate is two hours dry in the baking oven that temperature is 105 DEG C, in waste polyurethane particle One layer of magnesium oxysulfide shell is formed with perlite particle surface;
(2)Modified magnesium oxysulfide concrete slurry configuration:Sulfuric acid magnesium powder is taken to be added in tap water, with 1000-1200 in dispersion machine Turn/rotating speed the rapid dispersion of min 15-20 minutes, so that sulfuric acid magnesium powder is fully dissolved, magnesia powder is added to the sulfuric acid prepared In magnesium solution, then continues to stir 20-25min with the rotating speed of 800-1000 turns/min, modified magnesium oxysulfide is made after stirring evenly Cement slurry;
(3)It is prepared by thermal insulation mortar:By the cracking resistance swelling fiber waterproofing agent powder, inorganic glass fiber and fiber of certain mass part Plain ether and step(1)In the aggregate handled well be uniformly mixed, be added in blender, then add the modification magnesium oxysulfide water prepared Material-mud and magnesium oxysulfide concrete Special modifier are sufficiently stirred 10-15min, after stirring evenly with the rotating speed of 40-50 turns/min Suitable foaming agent is added, continues to obtain magnesium oxysulfide concrete base composite thermal insulation mortar after stirring 5min;
(4)Keep the temperature sheet metal forming:The magnesium oxysulfide concrete base composite thermal insulation mortar prepared is put into grinding tool, is used in combination after rolling compacting Spatula smoothes out molding, is placed in and conserves demoulding in one day at room temperature, and 28d is then conserved in 25 DEG C of insulating box obtains thermal insulation board.
The step(1)The parts by weight of the liquid waterproof agent of middle waste polyurethane surface spray shape are 42g, powdery oxygen The parts by weight for changing magnesium are 100g, and the parts by weight of flame retardant of magnesium hydroxide are 15g, and the parts by weight of Adlerika are 85g, Adlerika Baume degrees is 26 ° of B é.The step(1)The liquid waterproof agent 94g of middle expanded perlite surface spray shape, powder The parts by weight of shape magnesia are 100g, and the parts by weight of sulfuric acid solution are 85g, and Adlerika Baume degrees is 26 ° of B é.
According to the formula and thermal insulation board unit weight≤250Kg/m for producing of method in the present embodiment3, thermal coefficient≤ 0.055W/(m•K), heat-insulating property is preferable, other properties are satisfied by the requirement of building exterior wall heat preserving plate, gross calorific value≤3MJ/ Kg, fire growth rate FIGRAO.2MJ≤100W/S, fire prevention and combustibility are preferable, can reach national A2 grades of fire prevention mark Standard can be applied to external wall of high-rise building thermal insulation board.

Claims (9)

1. a kind of formula preparing thermal insulation board using waste polyurethane, which is characterized in that include the raw material of following parts by weight:It is useless Old polyurethane particles 64-112 parts, 32-78 parts of granules of polystyrene, 94-164 parts of expanded perlite granule, waterproofing agent 111-213 Part, modified 1600-2200 parts of magnesium oxysulfide concrete slurry, 200-300 parts of additive.
2. the formula according to claim 1 for preparing thermal insulation board using waste polyurethane, which is characterized in that the modification Magnesium oxysulfide concrete slurry includes the raw material of following parts by weight:900-1250 parts of magnesia powder, 250-400 parts of sulfuric acid magnesium powder, originally 450-550 parts of water, wherein Adlerika Baume degrees are 26-28 ° of B é.
3. the formula according to claim 1 for preparing thermal insulation board using waste polyurethane, which is characterized in that described is additional Agent includes the raw material of following parts by weight:10-15 parts of cracking resistance swelling fiber waterproofing agent powder, 10-15 parts of flame retardant of magnesium hydroxide, hair 8-15 parts of 160-250 parts of infusion, 10-15 parts of inorganic glass fiber, 2-3 parts of cellulose ether and modifying agent, modifying agent are sulphur oxygen Magnesium cement Special modifier.
4. the formula according to claim 1 for preparing thermal insulation board using waste polyurethane, which is characterized in that described is waste and old Polyurethane particles granularity is 4-6mm, and expanded perlite granule granularity is 2-4mm, and granules of polystyrene granularity is 0.5-1mm.
5. the formula according to claim 1 for preparing thermal insulation board using waste polyurethane, which is characterized in that described is waste and old Polyurethane particles density is 28Kg/m3, expanded perlite granule density is 78Kg/m3, granules of polystyrene density is 27Kg/m3
6. the formula according to claim 3 for preparing thermal insulation board using waste polyurethane, which is characterized in that the foaming Agent is the animal/vegetable protein composite foamable agent for magnesium oxysulfide concrete.
7. the method for preparing thermal insulation board using waste polyurethane according to claim 1-6 any one of them, which is characterized in that packet Include following steps:
(1)Aggregate processing:Waste polyurethane particle and expanded perlite granule are surface-treated respectively, using liquid water-proofing Agent carries out spray water proofing processing to it, and appropriate powdered magnesia, waste polyurethane particle are added after its surface is no longer entirely wetted Appropriate flame retardant of magnesium hydroxide is separately added, so that particle surface is wrapped up one layer its spray form Adlerika again after stirring evenly Magnesium oxysulfide slurry, after package treated aggregate is two hours dry in the baking oven that temperature is 105 DEG C, in waste polyurethane particle One layer of magnesium oxysulfide shell is formed with perlite particle surface;
(2)Modified magnesium oxysulfide concrete slurry configuration:Sulfuric acid magnesium powder is taken to be added in tap water, with 1000-1200 in dispersion machine Turn/rotating speed the rapid dispersion of min 15-20 minutes, so that sulfuric acid magnesium powder is fully dissolved, magnesia powder is added to the sulfuric acid prepared In magnesium solution, then continues to stir 20-25min with the rotating speed of 800-1000 turns/min, modified magnesium oxysulfide is made after stirring evenly Cement slurry;
(3)It is prepared by thermal insulation mortar:By the cracking resistance swelling fiber waterproofing agent powder, inorganic glass fiber and fiber of certain mass part Plain ether and step(1)In the aggregate handled well be uniformly mixed, be added in blender, then add the modification magnesium oxysulfide water prepared Material-mud and magnesium oxysulfide concrete Special modifier are sufficiently stirred 10-15min, after stirring evenly with the rotating speed of 40-50 turns/min Suitable foaming agent is added, continues to obtain magnesium oxysulfide concrete base composite thermal insulation mortar after stirring 5min;
(4)Keep the temperature sheet metal forming:The magnesium oxysulfide concrete base composite thermal insulation mortar prepared is put into grinding tool, is used in combination after rolling compacting Spatula smoothes out molding, is placed in and conserves demoulding in one day at room temperature, and 28d is then conserved in 25 DEG C of insulating box obtains thermal insulation board.
8. the method according to claim 7 for preparing thermal insulation board using waste polyurethane, it is characterised in that:The step (1)The parts by weight of the liquid waterproof agent of middle waste polyurethane surface spray shape are 32-50 parts, the parts by weight of powdered magnesia It is 70-100 parts, the parts by weight of flame retardant of magnesium hydroxide are 10-15 parts, and the parts by weight of Adlerika are 75-100 parts, Adlerika Baume degrees is 26-28 ° of B é.
9. the method according to claim 7 for preparing thermal insulation board using waste polyurethane, it is characterised in that:The step (1)The parts by weight of 80-140 parts of the liquid waterproof agent of middle expanded perlite surface spray shape, powdered magnesia are 80-120 parts, The parts by weight of sulfuric acid solution are 85-100 parts, and Adlerika Baume degrees is 26-28 ° of B é.
CN201810163465.7A 2018-02-27 2018-02-27 A kind of formula and method preparing thermal insulation board using waste polyurethane Pending CN108358594A (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103496866A (en) * 2013-09-23 2014-01-08 东南大学 Preparation method of novel core-shell type cement-based high-strength lightweight aggregate
CN103803885A (en) * 2014-01-27 2014-05-21 常州高能新型建材有限公司 Inorganic modified heat insulation plate and preparation process thereof
CN107311604A (en) * 2017-07-26 2017-11-03 合肥华盖光伏科技有限公司 A kind of fiber reinforcement warming plate and preparation method thereof

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103496866A (en) * 2013-09-23 2014-01-08 东南大学 Preparation method of novel core-shell type cement-based high-strength lightweight aggregate
CN103803885A (en) * 2014-01-27 2014-05-21 常州高能新型建材有限公司 Inorganic modified heat insulation plate and preparation process thereof
CN107311604A (en) * 2017-07-26 2017-11-03 合肥华盖光伏科技有限公司 A kind of fiber reinforcement warming plate and preparation method thereof

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Application publication date: 20180803

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