CN114671647A - Composite polystyrene board and preparation method thereof - Google Patents
Composite polystyrene board and preparation method thereof Download PDFInfo
- Publication number
- CN114671647A CN114671647A CN202210167388.9A CN202210167388A CN114671647A CN 114671647 A CN114671647 A CN 114671647A CN 202210167388 A CN202210167388 A CN 202210167388A CN 114671647 A CN114671647 A CN 114671647A
- Authority
- CN
- China
- Prior art keywords
- parts
- agent
- coating
- water
- emulsion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000004793 Polystyrene Substances 0.000 title claims abstract description 80
- 229920002223 polystyrene Polymers 0.000 title claims abstract description 80
- 239000002131 composite material Substances 0.000 title claims abstract description 30
- 238000002360 preparation method Methods 0.000 title claims description 17
- 239000011248 coating agent Substances 0.000 claims abstract description 72
- 239000002245 particle Substances 0.000 claims abstract description 65
- 238000000576 coating method Methods 0.000 claims abstract description 33
- 239000004568 cement Substances 0.000 claims abstract description 23
- 239000000203 mixture Substances 0.000 claims abstract description 23
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000003795 chemical substances by application Substances 0.000 claims description 33
- 239000000839 emulsion Substances 0.000 claims description 31
- 238000002156 mixing Methods 0.000 claims description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 30
- 239000011521 glass Substances 0.000 claims description 27
- 239000004794 expanded polystyrene Substances 0.000 claims description 24
- 239000011324 bead Substances 0.000 claims description 22
- 238000001035 drying Methods 0.000 claims description 21
- 239000000843 powder Substances 0.000 claims description 18
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 17
- 239000011256 inorganic filler Substances 0.000 claims description 17
- 229910003475 inorganic filler Inorganic materials 0.000 claims description 17
- 239000006185 dispersion Substances 0.000 claims description 15
- 230000002209 hydrophobic effect Effects 0.000 claims description 14
- 238000001723 curing Methods 0.000 claims description 13
- 239000000835 fiber Substances 0.000 claims description 13
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 9
- 238000005520 cutting process Methods 0.000 claims description 9
- 238000003756 stirring Methods 0.000 claims description 9
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 8
- CBOCVOKPQGJKKJ-UHFFFAOYSA-L Calcium formate Chemical group [Ca+2].[O-]C=O.[O-]C=O CBOCVOKPQGJKKJ-UHFFFAOYSA-L 0.000 claims description 8
- 229940044172 calcium formate Drugs 0.000 claims description 8
- 235000019255 calcium formate Nutrition 0.000 claims description 8
- 239000004281 calcium formate Substances 0.000 claims description 8
- 229920003086 cellulose ether Polymers 0.000 claims description 8
- 239000004111 Potassium silicate Substances 0.000 claims description 7
- 229910052913 potassium silicate Inorganic materials 0.000 claims description 7
- 235000019353 potassium silicate Nutrition 0.000 claims description 7
- NNHHDJVEYQHLHG-UHFFFAOYSA-N potassium silicate Chemical compound [K+].[K+].[O-][Si]([O-])=O NNHHDJVEYQHLHG-UHFFFAOYSA-N 0.000 claims description 7
- 239000004115 Sodium Silicate Substances 0.000 claims description 5
- 238000000748 compression moulding Methods 0.000 claims description 5
- 239000010881 fly ash Substances 0.000 claims description 5
- PAZHGORSDKKUPI-UHFFFAOYSA-N lithium metasilicate Chemical compound [Li+].[Li+].[O-][Si]([O-])=O PAZHGORSDKKUPI-UHFFFAOYSA-N 0.000 claims description 5
- 229910052912 lithium silicate Inorganic materials 0.000 claims description 5
- 229910052911 sodium silicate Inorganic materials 0.000 claims description 5
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 5
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 claims description 4
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 4
- 239000000377 silicon dioxide Substances 0.000 claims description 4
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 claims description 3
- 239000010451 perlite Substances 0.000 claims description 3
- 235000019362 perlite Nutrition 0.000 claims description 3
- 239000002994 raw material Substances 0.000 claims description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 2
- 239000010439 graphite Substances 0.000 claims description 2
- 229910002804 graphite Inorganic materials 0.000 claims description 2
- 239000012784 inorganic fiber Substances 0.000 claims description 2
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 claims description 2
- 239000000347 magnesium hydroxide Substances 0.000 claims description 2
- 229910001862 magnesium hydroxide Inorganic materials 0.000 claims description 2
- 229920005594 polymer fiber Polymers 0.000 claims description 2
- 239000005871 repellent Substances 0.000 claims description 2
- 230000002940 repellent Effects 0.000 claims description 2
- 229920001909 styrene-acrylic polymer Polymers 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
- 239000004965 Silica aerogel Substances 0.000 claims 1
- 238000000034 method Methods 0.000 claims 1
- 229920001296 polysiloxane Polymers 0.000 claims 1
- 238000009413 insulation Methods 0.000 abstract description 4
- 230000004048 modification Effects 0.000 abstract description 3
- 238000012986 modification Methods 0.000 abstract description 3
- 238000005303 weighing Methods 0.000 description 12
- 229910052710 silicon Inorganic materials 0.000 description 8
- 239000010703 silicon Substances 0.000 description 8
- 238000007723 die pressing method Methods 0.000 description 6
- 229920006248 expandable polystyrene Polymers 0.000 description 6
- 239000003365 glass fiber Substances 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 238000012216 screening Methods 0.000 description 6
- 235000012239 silicon dioxide Nutrition 0.000 description 3
- 239000004743 Polypropylene Substances 0.000 description 2
- 239000011325 microbead Substances 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- 239000004964 aerogel Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 239000004088 foaming agent Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- 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
- C04B28/02—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 hydraulic cements other than calcium sulfates
-
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/40—Porous or lightweight materials
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/30—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values
- C04B2201/32—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values for the thermal conductivity, e.g. K-factors
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The composite polystyrene board is prepared by coating polystyrene particles for the second time, wherein the polystyrene particles are coated by using a composition of a silicate system for the first time, the polystyrene particles are coated by using a composition of a cement system for the second time, and part of cement is replaced by using a silicate solution, so that the overall density of the board is reduced, and the reduction of the heat conductivity coefficient of the board is greatly facilitated. After the first coating, the silicate system composition performs inorganic modification on the polystyrene particle interface, so that the interface polarity is improved, and the cement-based composition also belongs to an inorganic system, so that the interface compatibility of the cement-based system and the polystyrene particles during the second coating is enhanced, and the mechanical property of the obtained insulation board is obviously enhanced.
Description
Technical Field
The invention relates to the technical field of preparation of polystyrene boards, in particular to a composite polystyrene board and a preparation method thereof.
Background
Polystyrene board is a white solid with fine closed-cell structure, which is made up by heating and prefoaming expandable polystyrene beads containing volatile liquid foaming agent in mould.
However, the existing polystyrene board has low overall density and poor mechanical property when used as a heat insulation board.
Disclosure of Invention
Technical problem to be solved
In order to solve the problems in the prior art, the invention provides a composite polystyrene board and a preparation method thereof, which can improve the overall density of the board and improve the mechanical property of the composite polystyrene board as a heat insulation board.
(II) technical scheme
In order to achieve the purpose, the invention adopts the technical scheme that:
the composite polystyrene board comprises the following raw materials in parts by weight: 4-15 parts of polystyrene particles, 30-80 parts of cement, 0-10 parts of rubber powder, 0-2 parts of fibers, 0.1-10 parts of emulsion, 10-70 parts of silicate solution, 0.01-8 parts of early strength agent, 0-3 parts of silane coupling agent, 0-3 parts of hydrophobic agent, 0.5-2 parts of water-retaining agent, 10-60 parts of inorganic filler, 5-75 parts of glass beads and 1-6 parts of water.
In order to achieve the purpose, the invention adopts another technical scheme as follows:
a preparation method of a composite polystyrene board comprises the following steps:
s1, mixing a silicate solution, an emulsion, glass beads, an inorganic filler, a silane coupling agent, a hydrophobic agent and water into a coating agent A;
s2, fully mixing and coating the coating agent A and the pre-expanded polystyrene particles, and then transferring the mixture to a temperature of 50-80 ℃ for full drying and dispersion to obtain a pre-expanded polystyrene particle composition B after primary coating;
S3, fully mixing and stirring cement, rubber powder, fibers, emulsion, an early strength agent, an inorganic filler, glass beads and water to obtain a coating agent C;
s4, fully mixing and coating the coating agent C and the pre-expanded polystyrene particle composition B subjected to primary coating to obtain a polystyrene expanded particle composition D subjected to secondary coating;
s5, transferring the composition D to a mold, and carrying out compression molding, curing and cutting to obtain the composite polystyrene board;
the coating agent A comprises the following components in parts by weight: 10-70 parts of silicate solution, 0.1-10 parts of emulsion, 5-75 parts of glass beads, 10-60 parts of inorganic filler, 0-3 parts of silane coupling agent, 0-2 parts of hydrophobic agent and 10-45 parts of water;
the weight ratio of the components of the pre-expanded polystyrene particles mixed with the coating agent A is 4-15 parts, and the bulk density of the pre-expanded polystyrene particles is 4-20 kg/cube;
the coating agent C comprises the following components in parts by weight: 30-80 parts of cement, 0-10 parts of rubber powder, 0-2 parts of fiber, 0-10 parts of emulsion, 0.5-2 parts of water-retaining agent, 0-1 part of hydrophobic agent, 0.01-8 parts of early strength agent, 10-60 parts of inorganic filler, 5-75 parts of glass beads and 25-50 parts of water.
And during compression molding, the pressure is 0.10-0.30MPa, the pressure maintaining time is 6-24h, and the curing is carried out at the temperature of-5-65 ℃ for 3-28 d.
(III) advantageous effects
The invention has the beneficial effects that: the composite polystyrene board is prepared by coating polystyrene particles for the second time, wherein the polystyrene particles are coated by the composition of the silicate system for the first time, the polystyrene particles are coated by the composition of the cement system for the second time, and the silicate solution is used for replacing part of cement, so that the overall density of the board is reduced, and the reduction of the heat conductivity coefficient of the board is greatly facilitated. After the first coating, the silicate system composition performs inorganic modification on the polystyrene particle interface, so that the interface polarity is improved, and the cement-based composition also belongs to an inorganic system, so that the interface compatibility of the cement-based system and the polystyrene particle during the second coating is enhanced, and the mechanical property of the obtained insulation board is obviously enhanced.
Detailed Description
For a better understanding of the present invention, reference will now be made in detail to the present invention by way of specific embodiments thereof.
Example one
The composite polystyrene board comprises the following raw materials in parts by weight: 4-15 parts of polystyrene particles, 30-80 parts of cement, 0-10 parts of rubber powder, 0-2 parts of fibers, 0.1-10 parts of emulsion, 10-70 parts of silicate solution, 0.01-8 parts of early strength agent, 0-3 parts of silane coupling agent, 0-3 parts of hydrophobic agent, 0.5-2 parts of water-retaining agent, 10-60 parts of inorganic filler, 5-75 parts of glass beads and 1-6 parts of water.
The polystyrene particles are pre-expanded polystyrene particles, and the bulk density is 4-12 kg/cube.
The rubber powder is redispersible rubber powder.
The fiber is one or two of polymer fiber and inorganic fiber, and PP fiber or glass fiber is preferably selected.
The emulsion is one or more than two of silicone-acrylic emulsion, pure acrylic emulsion, styrene-acrylic emulsion and vinyl acetate-acrylic emulsion.
The silicate solution is one or more than two of lithium silicate, sodium silicate and potassium silicate.
The early strength agent is calcium formate, the water-retaining agent is cellulose ether, and the hydrophobic agent is organosilicon;
the silane coupling agent is one or more than two of KH540, KH550 and KH 560.
The inorganic filler is one or more than two of aluminum hydroxide, magnesium hydroxide, calcium carbonate, silicon dioxide, barium sulfate, fly ash, silicon dioxide aerogel, expanded perlite, expanded graphite and vitrified micro bubbles;
the glass beads are hollow glass beads or hollow glass beads treated by a water repellent.
Example two
A preparation method of a composite polystyrene board comprises the following steps:
s1, mixing a silicate solution, an emulsion, glass beads, an inorganic filler, a silane coupling agent, a hydrophobic agent and water into a coating agent A;
S2, fully mixing and coating the coating agent A and the pre-expanded polystyrene particles, and then transferring the mixture to a temperature of 50-80 ℃ for full drying and dispersion to obtain a pre-expanded polystyrene particle composition B after primary coating;
s3, fully mixing and stirring cement, rubber powder, fibers, emulsion, an early strength agent, inorganic filler, glass beads and water to obtain a coating agent C;
s4, fully mixing and coating the coating agent C and the pre-expanded polystyrene particle composition B subjected to primary coating to obtain a polystyrene expanded particle composition D subjected to secondary coating;
s5, transferring the composition D to a mold, and carrying out compression molding, curing and cutting to obtain the composite polystyrene board;
the coating agent A comprises the following components in parts by weight: 10-70 parts of silicate solution, 0.1-10 parts of emulsion, 5-75 parts of glass beads, 10-60 parts of inorganic filler, 0-3 parts of silane coupling agent, 0-2 parts of hydrophobic agent and 10-45 parts of water;
the weight ratio of the components of the pre-expanded polystyrene particles mixed with the coating agent A is 4-15 parts, and the bulk density of the pre-expanded polystyrene particles is 4-20 kg/cube;
the coating agent C comprises the following components in parts by weight: 30-80 parts of cement, 0-10 parts of rubber powder, 0-2 parts of fiber, 0-10 parts of emulsion, 0.5-2 parts of water-retaining agent, 0-1 part of hydrophobic agent, 0.01-8 parts of early strength agent, 10-60 parts of inorganic filler, 5-75 parts of glass beads and 25-50 parts of water.
And during compression molding, the pressure is 0.10-0.30MPa, the pressure maintaining time is 6-24h, and the curing is carried out at the temperature of-5-65 ℃ for 3-28 d.
EXAMPLE III
A preparation method of a composite polystyrene board comprises the following steps:
1) screening pre-expanded polystyrene particles having a bulk density of 6 kg/cube;
2) weighing 60 parts of potassium silicate solution, 10 parts of emulsion, 0.5 part of silane coupling agent, 20 parts of 325-mesh calcium carbonate and 15 parts of water, uniformly mixing to obtain a coating agent A, adding the pre-foamed polystyrene particles obtained in the step 1), and coating for the first time;
3) transferring the primary coated polystyrene particles to a 65 ℃ oven for drying for 8h, and stirring and dispersing the polystyrene particles during the drying for dispersion to finally obtain primary coated polystyrene particles in a dry dispersion state;
4) weighing 60 parts of cement, 2 parts of rubber powder, 2 parts of glass fiber, 1 part of cellulose ether, 6 parts of calcium formate, 15 parts of vitrified micro bubbles, 20 parts of hollow glass micro bubbles and 1 part of organic silicon, fully mixing uniformly, and adding 35 parts of water to prepare a coating agent C;
5) fully mixing the material prepared in the step 3) with the coating agent C prepared in the step 4), uniformly coating, and transferring into a special die, wherein the die pressing pressure is 0.25MPa, and the pressure maintaining time is 14 h;
6) And (3) demolding, drying at normal temperature, curing for 14 days, and cutting to obtain the grade-A modified polystyrene board of the third example.
Example four
A preparation method of a composite polystyrene board comprises the following steps:
1) screening pre-expanded polystyrene particles having a bulk density of 4 kg/cube;
2) weighing 60 parts of potassium silicate solution, 8 parts of emulsion, 0.5 part of silane coupling agent, 20 parts of fly ash and 15 parts of water, uniformly mixing to obtain a coating agent A, adding the pre-foamed polystyrene particles obtained in the step 1), and performing primary coating;
3) transferring the primary coated polystyrene particles to a 65 ℃ oven for drying for 8h, and stirring and dispersing the polystyrene particles during the drying for dispersion to finally obtain primary coated polystyrene particles in a dry dispersion state;
4) weighing 60 parts of cement, 1 part of rubber powder, 2 parts of glass fiber, 1 part of cellulose ether, 0.5 part of organic silicon, 6 parts of calcium formate, 15 parts of vitrified micro bubbles and 20 parts of hollow glass micro bubbles, fully mixing uniformly, and adding 34 parts of water to prepare a coating agent C;
5) fully mixing the material prepared in the step 3) with the coating agent C prepared in the step 4), uniformly coating, and transferring into a special die, wherein the die pressing pressure is 0.25MPa, and the pressure maintaining time is 14 h;
6) and (3) demolding, drying and curing at normal temperature, curing for 14 days, and cutting to obtain the A-grade modified polystyrene board of the fourth example.
EXAMPLE five
A preparation method of a composite polystyrene board comprises the following steps:
1) screening pre-expanded polystyrene particles having a bulk density of 5 kg/cube;
2) weighing 50 parts of potassium silicate solution, 10 parts of lithium silicate solution, 8 parts of emulsion, 0.5 part of silane coupling agent, 0.5 part of organic silicon, 20 parts of fly ash and 15 parts of water, uniformly mixing to obtain a coating agent A, adding the pre-foamed polystyrene particles obtained in the step 1), and coating for one time;
3) transferring the primary coated polystyrene particles to a 65 ℃ oven for drying for 8h, and stirring and dispersing the polystyrene particles during the drying for dispersion to finally obtain primary coated polystyrene particles in a dry dispersion state;
4) weighing 70 parts of cement, 1 part of rubber powder, 2 parts of glass fiber, 1 part of cellulose ether, 6 parts of calcium formate, 15 parts of vitrified micro bubbles, 20 parts of hollow glass micro bubbles and 0.5 part of organic silicon, fully mixing uniformly, and adding 38 parts of water to prepare a coating agent C;
5) fully mixing the material prepared in the step 3) with the coating agent C prepared in the step 4), uniformly coating, and transferring into a special die, wherein the die pressing pressure is 0.25MPa, and the pressure maintaining time is 14 h;
6) after demolding, drying at normal temperature, curing for 14d, and cutting to obtain the A-grade modified polystyrene board of example V.
EXAMPLE six
A preparation method of a composite polystyrene board comprises the following steps:
1) screening pre-expanded polystyrene particles having a bulk density of 8 kg/cube;
2) weighing 30 parts of potassium silicate solution, 30 parts of sodium silicate solution, 8 parts of emulsion, 0.5 part of silane coupling agent, 1 part of organic silicon, 30 parts of aluminum hydroxide and 15 parts of water, uniformly mixing to obtain a coating agent A, adding the pre-foamed polystyrene particles obtained in the step 1), and coating for one time;
3) transferring the primary coated polystyrene particles to a 65 ℃ oven for drying for 8h, and stirring and dispersing the polystyrene particles during the drying for dispersion to finally obtain primary coated polystyrene particles in a dry dispersion state;
4) weighing 75 parts of cement, 3 parts of glass fiber, 1 part of cellulose ether, 7.5 parts of calcium formate, 15 parts of vitrified micro bubbles and 20 parts of hollow glass micro bubbles, fully and uniformly mixing, and adding 40 parts of water to prepare a coating agent C;
5) fully mixing the material prepared in the step 3) with the coating agent C prepared in the step 4), uniformly coating, and transferring into a special die, wherein the die pressing pressure is 0.20MPa, and the pressure maintaining time is 14 h;
6) after demolding, drying at normal temperature, curing for 14d, and cutting to obtain the A-grade modified polystyrene board of example six.
EXAMPLE seven
A preparation method of a composite polystyrene board comprises the following steps:
1) Screening pre-expanded polystyrene particles having a bulk density of 12 kg/cube;
2) weighing 50 parts of sodium silicate solution, 10 parts of lithium silicate, 8 parts of emulsion, 1 part of silane coupling agent, 0.5 part of organic silicon, 20 parts of silicon dioxide and 20 parts of water, uniformly mixing to obtain a coating agent A, adding the pre-foamed polystyrene particles obtained in the step 1), and coating for one time;
3) transferring the primary coated polystyrene particles to a 65 ℃ oven for drying for 8h, and stirring and dispersing the polystyrene particles during the drying for dispersion to finally obtain primary coated polystyrene particles in a dry dispersion state;
4) weighing 70 parts of cement, 1 part of rubber powder, 2 parts of glass fiber, 1 part of cellulose ether, 7 parts of calcium formate, 15 parts of vitrified micro bubbles, 20 parts of hollow glass micro bubbles and 0.5 part of organic silicon, fully and uniformly mixing, and adding 38 parts of water to prepare a coating agent C;
5) fully mixing the material prepared in the step 3) with the coating agent C prepared in the step 4), uniformly coating, and transferring into a special die, wherein the die pressing pressure is 0.25MPa, and the pressure maintaining time is 14 h;
after demolding, drying at normal temperature, curing for 14d, and cutting to obtain the A-grade modified polystyrene board of example VII.
Example eight
A preparation method of a composite polystyrene board comprises the following steps:
1) Screening pre-expanded polystyrene particles having a bulk density of 7 kg/cube;
2) weighing 35 parts of potassium silicate solution, 10 parts of sodium silicate, 5 parts of lithium silicate, 5 parts of emulsion, 3 parts of silane coupling agent, 10 parts of fly ash, 10 parts of calcium carbonate and 30 parts of water, uniformly mixing to obtain a coating agent A, adding the pre-expanded polystyrene particles obtained in the step 1), and performing primary coating;
3) transferring the primary coated polystyrene particles to a 65 ℃ oven for drying for 8h, and stirring and dispersing the polystyrene particles during the drying for dispersion to finally obtain primary coated polystyrene particles in a dry dispersion state;
4) weighing 65 parts of cement, 5 parts of rubber powder, 2 parts of polypropylene fiber, 0.5 part of cellulose ether, 6.5 parts of calcium formate, 10 parts of vitrified micro-beads, 5 parts of expanded perlite, 20 parts of hollow glass micro-beads and 1 part of organic silicon, fully and uniformly mixing, and adding 38 parts of water to prepare a coating agent C;
5) fully mixing the material prepared in the step 3) with the coating agent C prepared in the step 4), uniformly coating, and transferring into a special die, wherein the die pressing pressure is 0.25MPa, and the pressure maintaining time is 14 h;
after demolding, drying at normal temperature, curing for 14d, and cutting to obtain the grade A modified polystyrene board of example VIII.
In summary, the conventional preparation method of the class a modified polystyrene board is used as a control group, the preparation method of the class a modified polystyrene board of the present invention is used as an experimental group, and the control group is compared with the class three-eight class a modified polystyrene boards of the present examples. Under the same conditions, the index data of each item are obtained as follows:
| Item | Apparent density | Coefficient of thermal conductivity | Tensile strength | Compressive strength | Water absorptionRate of change | Heat value of combustion |
| Unit of | kg/m3 | W/(m.K) | MPa | MPa | ％ | MJ/kg |
| Control group | 165 | 0.065 | 0.10 | 0.15 | 9 | 2.90 |
| Example 1 | 150 | 0.050 | 0.12 | 0.25 | 3 | 2.57 |
| Example 2 | 145 | 0.048 | 0.11 | 0.20 | 5 | 2.31 |
| Example 3 | 155 | 0.050 | 0.16 | 0.30 | 2 | 2.46 |
| Example 4 | 158 | 0.052 | 0.18 | 0.33 | 4 | 2.53 |
| Example 5 | 165 | 0.055 | 0.20 | 0.35 | 5 | 2.83 |
| Example 6 | 152 | 0.051 | 0.13 | 0.22 | 6 | 2.59 |
From the above, the polystyrene board obtained by the invention has obviously better overall density, mechanical property and flame retardant property than the polystyrene board obtained by the traditional preparation method.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent modifications made by the present invention in the specification or directly or indirectly applied to the related technical field are included in the scope of the present invention.
Claims (10)
1. The composite polystyrene board is characterized by comprising the following raw materials in parts by weight: 4-15 parts of polystyrene particles, 30-80 parts of cement, 0-10 parts of rubber powder, 0-2 parts of fibers, 0.1-10 parts of emulsion, 10-70 parts of silicate solution, 0.01-8 parts of early strength agent, 0-3 parts of silane coupling agent, 0-3 parts of hydrophobic agent, 0.5-2 parts of water-retaining agent, 10-60 parts of inorganic filler, 5-75 parts of glass beads and 1-6 parts of water.
2. The composite polystyrene board of claim 1, wherein the polystyrene particles are pre-expanded polystyrene particles and have a bulk density of 4 to 12 kg/cube.
3. The composite polystyrene board of claim 1, wherein the rubber powder is redispersible rubber powder.
4. The composite polystyrene board of claim 1, wherein the fibers are one or both of polymer fibers and inorganic fibers.
5. The composite polystyrene board as claimed in claim 1, wherein the emulsion is one or more of silicone-acrylic emulsion, pure acrylic emulsion, styrene-acrylic emulsion and vinyl acetate-acrylic emulsion.
6. The composite polystyrene board as claimed in claim 1, wherein the silicate solution is one or more of lithium silicate, sodium silicate and potassium silicate.
7. The composite polystyrene board of claim 1, wherein the early strength agent is calcium formate, the water retention agent is cellulose ether, and the hydrophobic agent is silicone;
the silane coupling agent is one or more than two of KH540, KH550 and KH 560.
8. The composite polystyrene board as claimed in claim 1, wherein the inorganic filler is one or more of aluminum hydroxide, magnesium hydroxide, calcium carbonate, silica, barium sulfate, fly ash, silica aerogel, expanded perlite, expanded graphite and vitrified micro bubbles;
The glass beads are hollow glass beads or hollow glass beads treated by a water repellent.
9. The preparation method of the composite polystyrene board is characterized by comprising the following steps:
s1, mixing a silicate solution, an emulsion, glass beads, an inorganic filler, a silane coupling agent, a hydrophobic agent and water into a coating agent A;
s2, fully mixing and coating the coating agent A and the pre-expanded polystyrene particles, and then transferring the mixture to a temperature of 50-80 ℃ for full drying and dispersion to obtain a pre-expanded polystyrene particle composition B after primary coating;
s3, fully mixing and stirring cement, rubber powder, fibers, emulsion, an early strength agent, inorganic filler, glass beads and water to obtain a coating agent C;
s4, fully mixing and coating the coating agent C and the pre-expanded polystyrene particle composition B subjected to primary coating to obtain a polystyrene expanded particle composition D subjected to secondary coating;
s5, transferring the composition D to a mold, and carrying out compression molding, curing and cutting to obtain the composite polystyrene board;
the coating agent A comprises the following components in parts by weight: 10-70 parts of silicate solution, 0.1-10 parts of emulsion, 5-75 parts of glass beads, 10-60 parts of inorganic filler, 0-3 parts of silane coupling agent, 0-2 parts of hydrophobic agent and 10-45 parts of water;
The weight ratio of the components of the pre-expanded polystyrene particles mixed with the coating agent A is 4-15 parts, and the bulk density of the pre-expanded polystyrene particles is 4-20 kg/cube;
the coating agent C comprises the following components in parts by weight: 30-80 parts of cement, 0-10 parts of rubber powder, 0-2 parts of fiber, 0-10 parts of emulsion, 0.5-2 parts of water-retaining agent, 0-1 part of hydrophobic agent, 0.01-8 parts of early strength agent, 10-60 parts of inorganic filler, 5-75 parts of glass beads and 25-50 parts of water.
10. The method for preparing the composite polystyrene board as claimed in claim 9, wherein the pressure is 0.10-0.30MPa and the pressure holding time is 6-24h, and the curing is performed at-5-65 ℃ for 3-28 d.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210167388.9A CN114671647A (en) | 2022-02-23 | 2022-02-23 | Composite polystyrene board and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210167388.9A CN114671647A (en) | 2022-02-23 | 2022-02-23 | Composite polystyrene board and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114671647A true CN114671647A (en) | 2022-06-28 |
Family
ID=82071806
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210167388.9A Pending CN114671647A (en) | 2022-02-23 | 2022-02-23 | Composite polystyrene board and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114671647A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115849854A (en) * | 2022-12-26 | 2023-03-28 | 君旺窗业(上海)有限公司 | Silicon hydrocarbon insulation board and preparation method thereof |
| CN116284957A (en) * | 2023-01-16 | 2023-06-23 | 中国铁道科学研究院集团有限公司 | Flame-retardant polystyrene board material, preparation method thereof and application thereof in tunnel thermal insulation engineering |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102329089A (en) * | 2011-08-11 | 2012-01-25 | 邓州中联水泥有限公司 | Cement clinker prepared from vanadium slag |
| CN105731880A (en) * | 2014-12-10 | 2016-07-06 | 辽宁法库陶瓷工程技术研究中心 | A novel polyphenyl granule-perlite organic composite thermal insulation material and a preparing method thereof |
| CN108726951A (en) * | 2018-07-12 | 2018-11-02 | 安徽省绩溪县华宇防火滤料有限公司 | A kind of Outer wall fireproof heat-insulation material and preparation method thereof |
| CN108774030A (en) * | 2018-06-29 | 2018-11-09 | 芜湖市棠华建材科技有限公司 | A kind of light flame-retardant building thermal insulation material and preparation method thereof |
| CN109370077A (en) * | 2018-09-19 | 2019-02-22 | 宁夏保利节能科技有限公司 | A kind of inorganic slurry and preparation method thereof of thermosetting composite polyphenylene plate |
| CN110713391A (en) * | 2019-10-11 | 2020-01-21 | 成都新柯力化工科技有限公司 | Light cement insulation board for energy-saving building and preparation method |
| CN111362647A (en) * | 2020-03-17 | 2020-07-03 | 山东鲁润通节能科技有限公司 | Inorganic micro-bead foaming modified silicon-plastic composite thermal insulation material and preparation method thereof |
| CN112661429A (en) * | 2020-12-28 | 2021-04-16 | 成都固迪新型建材有限公司 | Preparation method of non-combustible polystyrene particle composite insulation board and product prepared by same |
| CN114075060A (en) * | 2020-08-22 | 2022-02-22 | 陈军 | Die-pressing inorganic polystyrene particle insulation board and preparation method thereof |
-
2022
- 2022-02-23 CN CN202210167388.9A patent/CN114671647A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102329089A (en) * | 2011-08-11 | 2012-01-25 | 邓州中联水泥有限公司 | Cement clinker prepared from vanadium slag |
| CN105731880A (en) * | 2014-12-10 | 2016-07-06 | 辽宁法库陶瓷工程技术研究中心 | A novel polyphenyl granule-perlite organic composite thermal insulation material and a preparing method thereof |
| CN108774030A (en) * | 2018-06-29 | 2018-11-09 | 芜湖市棠华建材科技有限公司 | A kind of light flame-retardant building thermal insulation material and preparation method thereof |
| CN108726951A (en) * | 2018-07-12 | 2018-11-02 | 安徽省绩溪县华宇防火滤料有限公司 | A kind of Outer wall fireproof heat-insulation material and preparation method thereof |
| CN109370077A (en) * | 2018-09-19 | 2019-02-22 | 宁夏保利节能科技有限公司 | A kind of inorganic slurry and preparation method thereof of thermosetting composite polyphenylene plate |
| CN110713391A (en) * | 2019-10-11 | 2020-01-21 | 成都新柯力化工科技有限公司 | Light cement insulation board for energy-saving building and preparation method |
| CN111362647A (en) * | 2020-03-17 | 2020-07-03 | 山东鲁润通节能科技有限公司 | Inorganic micro-bead foaming modified silicon-plastic composite thermal insulation material and preparation method thereof |
| CN114075060A (en) * | 2020-08-22 | 2022-02-22 | 陈军 | Die-pressing inorganic polystyrene particle insulation board and preparation method thereof |
| CN112661429A (en) * | 2020-12-28 | 2021-04-16 | 成都固迪新型建材有限公司 | Preparation method of non-combustible polystyrene particle composite insulation board and product prepared by same |
Non-Patent Citations (1)
| Title |
|---|
| 管志川: "《普通高等教育"十一五"规划教材 钻井工程理论与技术》", 中国石油大学出版社, pages: 274 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115849854A (en) * | 2022-12-26 | 2023-03-28 | 君旺窗业(上海)有限公司 | Silicon hydrocarbon insulation board and preparation method thereof |
| CN115849854B (en) * | 2022-12-26 | 2024-04-26 | 君旺窗业(上海)有限公司 | Silicon hydrocarbon heat-insulating plate and preparation method thereof |
| CN116284957A (en) * | 2023-01-16 | 2023-06-23 | 中国铁道科学研究院集团有限公司 | Flame-retardant polystyrene board material, preparation method thereof and application thereof in tunnel thermal insulation engineering |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN114671647A (en) | Composite polystyrene board and preparation method thereof | |
| CN110713391A (en) | Light cement insulation board for energy-saving building and preparation method | |
| CN110372290B (en) | High-content volcanic ash foamed concrete material and preparation method thereof | |
| CN111423160A (en) | Light geopolymer thermal insulation material and preparation method thereof | |
| CN111517708A (en) | Graphite modified polystyrene inorganic insulation board and preparation method thereof | |
| CN110054450A (en) | A kind of light foam concrete inner partition plate | |
| CN113816671A (en) | A-level fireproof graphite composite insulation board material and preparation method thereof | |
| CN112062529A (en) | Gypsum-based foam concrete with high-content phosphogypsum and preparation method thereof | |
| CN113651573A (en) | Building floor heat-preservation sound-insulation board and processing method thereof | |
| WO2016056717A1 (en) | Flame retardant coating agent composition for expanded polystyrene | |
| CN109608134B (en) | Cement board and semi-dry method preparation process thereof | |
| CN103306387A (en) | A2 grade EPS modified fireproof insulation board and preparation and using method thereof | |
| CN116969739A (en) | Light plastering gypsum and preparation method thereof | |
| CN114479299A (en) | Flame-retardant polystyrene board and preparation method thereof | |
| CN114436584B (en) | Inorganic modified graphite polystyrene non-combustible insulation board and preparation method thereof | |
| CN109293297A (en) | A kind of low-density foamed cement and preparation method thereof | |
| CN108610092A (en) | A kind of high-strength building thermal insulation material and preparation method thereof | |
| CN115677292A (en) | Inorganic composite polyphenyl particle foaming insulation board and preparation method thereof | |
| CN114956629A (en) | Light baking-free artificial aggregate prepared from construction waste recycled micro powder and preparation method thereof | |
| CN111285657B (en) | Thermal insulation wall material and manufacturing process thereof | |
| CN114315298A (en) | Ardealite fireproof door core board and preparation method thereof | |
| CN114368947A (en) | Nano foam glass bead concrete for door plate and preparation method thereof | |
| CN114573364A (en) | Preparation method of A-grade modified polystyrene board | |
| CN112500077A (en) | Emulsion modified foamed concrete and preparation method and application thereof | |
| CN112159246A (en) | Preparation method of cement-based building exterior wall thermal insulation material |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20220628 |