CN109694226B - But air-purifying's thistle board - Google Patents

But air-purifying's thistle board Download PDF

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Publication number
CN109694226B
CN109694226B CN201710994215.3A CN201710994215A CN109694226B CN 109694226 B CN109694226 B CN 109694226B CN 201710994215 A CN201710994215 A CN 201710994215A CN 109694226 B CN109694226 B CN 109694226B
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negative ion
weight
paper
gypsum
powder
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CN109694226A (en
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王丽
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Beijing New Building Material Group Co Ltd
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Beijing New Building Material Group Co Ltd
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    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/14—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 calcium sulfate cements
    • C04B28/145—Calcium sulfate hemi-hydrate with a specific crystal form
    • 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
    • C04B28/04—Portland cements
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F13/00—Coverings or linings, e.g. for walls or ceilings
    • E04F13/07—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
    • E04F13/08—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements
    • E04F13/0875—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements having a basic insulating layer and at least one covering layer
    • 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
    • C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
    • C04B2111/00612—Uses not provided for elsewhere in C04B2111/00 as one or more layers of a layered structure
    • C04B2111/0062—Gypsum-paper board like materials

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Structural Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Architecture (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Civil Engineering (AREA)
  • Building Environments (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)

Abstract

The application discloses but air-purifying's thistle board, thistle board includes anion powder to the weight of the desulfurization gypsum of preparing thistle board is 100 parts counts, the addition of anion powder is 1-5 parts by weight, wherein, anion powder is in the preparation the exit of thistle board is added the ground paste and is sprayed after formulating into anion powder aqueous solution on the internal surface of the upper and lower mask paper of thistle board. The paper surface gypsum board of this application can release the anion in to the air, has good, lasting air-purifying's ability, and paper surface gypsum board surface has the embossing hole of three-dimensional moulding and certain shape moreover, elegant appearance.

Description

But air-purifying's thistle board
Technical Field
The application relates to but is not limited to the technical field of production of gypsum plasterboards, in particular to but not limited to a gypsum plasterboard which is produced by utilizing anion powder and desulfurized gypsum and can purify air.
Background
The paper-surface gypsum board is a novel building material, has various properties such as light weight, convenient processing, heat and sound insulation, excellent fireproof performance and breathing performance, and the like, and is widely applied to various occasions. The paper-surface gypsum board belongs to a porous product, has a certain air purification effect, but has an unsatisfactory effect. Especially, the whole air environment is worried at present, so that the paper-surface gypsum board capable of purifying indoor air can greatly improve the living environment, which is very significant.
Disclosure of Invention
The following is a summary of the subject matter described in detail herein. This summary is not intended to limit the scope of the claims.
The application provides a thistle board that has good ability to purify air.
Specifically, the application provides a paper-surface gypsum board capable of purifying air, which comprises anion powder, and the addition amount of the anion powder is 1-5 parts by weight based on 100 parts by weight of desulfurized gypsum for preparing the paper-surface gypsum board.
In the embodiment of the present application, the anion powder may be a commonly used anion powder in the art or prepared by a conventional method.
In embodiments of the present application, the manner of adding the negative ion powder to the paper-faced gypsum board may include: and adding the anion powder into the slurry at an outlet of the slurry for preparing the paper-surface gypsum board.
In the embodiment of the present application, the manner of adding the anion powder to the paper-surface gypsum board may be: adding a first part of anion powder into the slurry at an outlet of the slurry for preparing the paper-surface gypsum board, preparing a second part of anion powder into an anion powder aqueous solution and spraying the anion powder aqueous solution onto the inner surface of the lower protective paper of the paper-surface gypsum board, and preparing a third part of anion powder into an anion powder aqueous solution and spraying the anion powder aqueous solution onto the inner surface of the upper protective paper of the paper-surface gypsum board.
In this application, the inner surface of the facing paper refers to the side of the facing paper that is in contact with the slurry.
In an embodiment of the present application, the weight ratio of the first, second and third negative ion powders may be (1-2): (0.1-1.5).
Optionally, the weight ratio of the first part of negative ion powder to the second part of negative ion powder to the third part of negative ion powder is 2:1: 1.
In an embodiment of the present application, the concentration of the aqueous solution of the anion powder prepared from the second anion powder may be 0.1 to 20% by weight, and the concentration of the aqueous solution of the anion powder prepared from the third anion powder may be 0.1 to 20% by weight.
In an embodiment of the present application, the paper-faced gypsum board surface may have a molding formed of a high-strength gypsum-based mortar including 60-80 parts by weight of high-strength gypsum, 10-30 parts by weight of diatomaceous earth, 5-10 parts by weight of portland cement, 5-10 parts by weight of zeolite, 0-10 parts by weight of cuprous oxide powder, 2-5 parts by weight of fourth negative ion powder, 0.1-0.6 parts by weight of a water reducing agent, 0.02-0.1 parts by weight of a retarder, 0.01-0.2 parts by weight of cellulose ether.
Optionally, the high strength gypsum is alpha high strength gypsum.
In embodiments of the present application, the weight ratio of the fourth portion of negative ion powder to the first portion of negative ion powder added to the slurry in the high strength gypsum-based mortar may be 2: 1.
In embodiments of the present application, the gypsum plasterboard may further comprise 100 parts by weight of desulphurised gypsum, 0.3 to 0.9 parts by weight of starch, 0.03 to 0.09 parts by weight of a foaming agent and an amount of water to provide a water level at standard consistency of the gypsum slurry.
In an embodiment of the present application, the particle size of the negative ion powder may be 70 to 200 mesh.
In an embodiment of the present application, the air-purifiable gypsum plasterboard may be prepared by:
mixing desulfurized gypsum, starch and foaming agent;
adding water, and uniformly mixing to form slurry;
adding a first portion of negative ion powder at an outlet of the slurry;
preparing a second negative ion powder into a negative ion powder aqueous solution, and spraying the negative ion powder aqueous solution on the inner surface of the lower protective surface paper;
flatly paving the slurry on lower protective paper sprayed with an aqueous solution of negative ion powder;
shaping the upper surface of the slurry according to a desired shape by using high-strength gypsum-based mortar; cutting the upper protective paper according to the molded shape; preparing a negative ion powder aqueous solution from the third negative ion powder, spraying the negative ion powder aqueous solution onto the inner surface of the upper protective paper, and attaching the upper protective paper sprayed with the negative ion powder aqueous solution onto the surface of the slurry without shaping to expose the shaping;
or cutting the upper protective paper according to a desired shaping shape; preparing a third negative ion powder into a negative ion powder aqueous solution, and spraying the negative ion powder aqueous solution on the inner surface of the upper protective surface paper; attaching the upper protective paper sprayed with the negative ion powder aqueous solution on the surface of the slurry; shaping on the slurry without the protective paper;
and (5) molding and drying.
Optionally, before the shaping is performed by using the high-strength gypsum-based mortar, the method for preparing the air-purifiable paper-surface gypsum board further comprises:
uniformly mixing high-strength gypsum, diatomite, portland cement, zeolite, cuprous oxide powder, fourth negative ion powder, a water reducing agent, a retarder and cellulose ether to obtain the high-strength gypsum-based mortar;
and (3) mixing the high-strength gypsum-based mortar and mixing water according to the weight ratio of (2-4) to 1, and uniformly stirring.
Optionally, the drying comprises: drying for 20-40 min at 160-200 ℃; reducing the temperature to 80-120 ℃, and continuously drying until the water content of the gypsum plaster board is 5-15%; and drying the gypsum plaster board to constant weight under the pressure of 0.01-0.08 MPa and the temperature of 40-60 ℃.
Optionally, after drying, the method of making the air-cleanable gypsum plasterboard further comprises: embossing the surface of the paper-surface gypsum board by using an embossing roller.
The application obtains the following beneficial technical effects:
(1) according to the application, the air purification material is added into the gypsum plaster board, so that the capability of purifying air is given to the gypsum plaster board, and the addition of the air purification material does not bring adverse effects to other performances (such as strength, heat preservation performance and the like) of the gypsum plaster board; meanwhile, the adopted air purifying material, namely the anion powder has lasting air purifying capacity, and the air purifying effect of the gypsum board is improved.
(2) The negative ion powder is added in different modes, so that the negative ion powder can be uniformly distributed in the mask paper and the board core of the thistle board, and the air purifying capacity of the thistle board is obviously improved.
(3) Moulding direct integrated into one piece that high strength gypsum base mortar formed is on gypsum slurry surface, and need not other bonding material, has realized moulding and gypsum slurry's seamless connection for moulding can combine on thistle board better, and moulding existence can not influence the anion powder release anion in thistle board core moreover.
(4) Embossing can be carried out on the surface of the paper-surface gypsum board by utilizing the embossing roller, and the embossing holes can improve the air permeability and the air purification capability of the paper-surface gypsum board.
(5) The surface of the paper-surface gypsum board can be provided with three-dimensional shaping and embossing holes with certain shapes, is beautiful and elegant, can be directly used for interior wall decorative boards, does not need subsequent processing treatment and is convenient to use.
Additional features and advantages of the application will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the application. The objectives and other advantages of the application may be realized and attained by the structure particularly pointed out in the written description and claims hereof.
Detailed Description
Hereinafter, embodiments of the present application will be described in detail to make objects, technical solutions and advantages of the present application more apparent. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.
The starting materials used in the following examples are all common commercial products unless otherwise specified.
Example 1
1. Weighing 100kg of desulfurized gypsum, 60kg of water, 3kg of anion powder, 0.6kg of starch and 0.06kg of foaming agent;
2. dividing the negative ion powder into four parts according to the weight ratio of 2:1:1:4, wherein the first part of negative ion powder is 0.75kg, the second part of negative ion powder is 0.375kg, the third part of negative ion powder is 0.375kg, and the fourth part of negative ion powder is 1.5 kg; respectively adding water into the second negative ion powder and the third negative ion powder to prepare a negative ion powder aqueous solution with the concentration of 7.5 weight percent;
3. adding desulfurized gypsum, starch, a foaming agent and water into a mixer, and uniformly mixing;
4. adding a first part of negative ion powder at a slurry outlet of a mixer;
5. spraying the negative ion powder water solution prepared from the second negative ion powder on the inner surface of the lower protective paper;
6. cutting off the part of the upper surface protection paper needing shaping before final setting of the gypsum slurry, and spraying a negative ion powder aqueous solution prepared from third negative ion powder onto the inner surface of the upper surface protection paper;
7. spreading a slurry pump containing first negative ion powder on the lower protective paper;
8. attaching the upper protective paper sprayed with the negative ion powder aqueous solution to the slurry;
9. weighing 6kg of high-strength gypsum, 1.5kg of diatomite, 1kg of portland cement, 0.5kg of zeolite, 0.02kg of water reducing agent, 0.002kg of retarder and 0.005kg of cellulose ether, uniformly mixing with the fourth negative ion powder, and adding a proper amount of mixing water (the amount of the mixing water is the water consumption of the standard consistency of the mortar) to obtain the molding mortar;
10. before the gypsum slurry is finally set, making expected shaping on the slurry without the facing paper by using shaping mortar;
11. molding;
12. conveying the formed gypsum plasterboard to a drying kiln, and drying at 160-200 ℃ for 20-40 min; reducing the temperature to 80-120 ℃, and continuously drying until the water content of the gypsum plaster board is 5-15%; continuously pumping pressure in a drying kiln, continuously reducing the pressure in the kiln to 0.02Mpa, reducing the temperature to 40-60 ℃, and continuously drying the gypsum plaster board to constant weight;
13. the gypsum plaster board is sent to a surface treatment chamber, and a plurality of holes are formed on the surface of the gypsum plaster board by using needle-shaped press rolls.
Example 2
This embodiment differs from embodiment 1 only in that: the water consumption is 70kg, 3kg of anion powder is added at the slurry outlet of the mixer, and the inner surfaces of the upper and lower protective paper are not sprayed with the anion powder aqueous solution.
Example 3
This embodiment differs from embodiment 1 only in that: dividing 3kg of negative ion powder into three parts according to the weight ratio of 3:1:1, wherein the first part of negative ion powder is 1.8kg, and adding the negative ion powder at an outlet of the slurry; the second and third portions of anion powder are 0.6kg, and are respectively sprayed on the inner surfaces of the upper protective paper and the lower protective paper after being prepared into an anion powder aqueous solution with the concentration of 12 weight percent by adding water. The upper surface protecting paper is not cut and is not shaped.
Example 4
This embodiment differs from embodiment 1 only in that: the water consumption is 70kg, 3kg of anion powder and other raw materials such as desulfurized gypsum, starch and the like are mixed together in a mixer to prepare slurry, and the thistle board is prepared.
Test example
The negative ion releasing ability of the ordinary commercially available gypsum plasterboard without the addition of negative ion powder and the gypsum plasterboard with the addition of negative ion powder prepared in example 14 were tested according to the national standard JC/T1016-2006 test method for the amount of negative ion generated in the material. The results are reported in Table 1.
TABLE 1
Name (R) Common gypsum board Example 1 Example 2 Example 3 Example 4
Number of released anions (number/cm)3) 743 5576 4218 4745 3709
As can be seen from Table 1, the gypsum plasterboards prepared in examples 1 to 4 have significantly enhanced anion releasing ability after addition of the anion powder; particularly, in the embodiment 1, the negative ion powder is added into the paper-surface gypsum board according to a specific proportion by adopting different adding modes, so that the prepared paper-surface gypsum board has obviously better negative ion release capacity and canThe indoor air freshening degree reaches a special level (the concentration of negative ions is more than 5000 pieces/cm)3) The air quality is significantly better than that of the first class of examples 2-3 (anion concentration > 2000/cm)3) The degree of air freshness indicates that the distribution of the negative ion powder is more reasonable in the paper-faced gypsum board prepared in example 1.
Although the embodiments disclosed in the present application are described above, the descriptions are only for the convenience of understanding the present application, and are not intended to limit the present application. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the disclosure as defined by the appended claims.

Claims (7)

1. The paper-surface gypsum board capable of purifying air comprises anion powder, and the addition amount of the anion powder is 1-5 parts by weight based on 100 parts by weight of desulfurized gypsum for preparing the paper-surface gypsum board;
wherein, the mode of adding the anion powder into the paper-surface gypsum board is as follows: adding a first part of negative ion powder into the slurry at an outlet of the slurry for preparing the paper-surface gypsum board, preparing a second part of negative ion powder into a negative ion powder aqueous solution, spraying the negative ion powder aqueous solution onto the inner surface of the lower protective paper of the paper-surface gypsum board, preparing a third part of negative ion powder into a negative ion powder aqueous solution, spraying the negative ion powder aqueous solution onto the inner surface of the upper protective paper of the paper-surface gypsum board, mixing a fourth part of negative ion powder with raw materials for preparing the high-strength gypsum-based mortar to obtain the high-strength gypsum-based mortar, and shaping the high-strength gypsum-based mortar on the upper surface of the slurry according to a desired shape;
the weight ratio of the first negative ion powder to the second negative ion powder to the third negative ion powder is (1-2) to (0.1-1.5), and the weight ratio of the fourth negative ion powder to the first negative ion powder is 2: 1.
2. The air-purifying paper-faced gypsum board of claim 1, wherein the weight ratio of the first negative ion powder to the second negative ion powder to the third negative ion powder is 2:1: 1.
3. The air-purifying paper-surface gypsum board according to claim 1 or 2, wherein the concentration of the aqueous solution of the anion powder prepared from the second anion powder is 0.1-20 wt%, and the concentration of the aqueous solution of the anion powder prepared from the third anion powder is 0.1-20 wt%.
4. The air-purifiable, paper-faced gypsum board according to claim 1 or 2, wherein the high-strength gypsum-based mortar comprises 60 to 80 parts by weight of high-strength gypsum, 10 to 30 parts by weight of diatomaceous earth, 5 to 10 parts by weight of portland cement, 5 to 10 parts by weight of zeolite, 0 to 10 parts by weight of cuprous oxide powder, 2 to 5 parts by weight of fourth anion powder, 0.1 to 0.6 parts by weight of water reducing agent, 0.02 to 0.1 parts by weight of retarder, 0.01 to 0.2 parts by weight of cellulose ether.
5. The air-purifying paper-faced gypsum board of claim 4, wherein the high-strength gypsum is alpha high-strength gypsum.
6. The air-purifiable, paper-faced gypsum board of claim 1 or 2, further comprising 100 parts by weight of desulfurized gypsum, 0.3 to 0.9 parts by weight of starch, 0.03 to 0.09 parts by weight of a foaming agent, and an amount of water to be used for a standard consistency of the gypsum slurry.
7. The air-purifiable gypsum plasterboard according to claim 1 or 2, wherein the particle size of the negative ion powder is 70 to 200 mesh.
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CN111606672A (en) * 2019-06-20 2020-09-01 中建材创新科技研究院有限公司 Gypsum board with air purifying function and preparation method thereof
CN111606682A (en) * 2019-07-30 2020-09-01 北新集团建材股份有限公司 Paper-surface gypsum board and preparation method thereof

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CN101649669B (en) * 2009-08-31 2012-04-04 泰山石膏股份有限公司 Sound absorbing decorative gypsum board and production method thereof
CN106145782A (en) * 2015-03-23 2016-11-23 上海斯米克健康环境技术有限公司 A kind of coating of releasable negative oxygen ion and its preparation method and application
CN105152617B (en) * 2015-09-06 2018-02-16 山东拜尔建材有限公司 A kind of Thistle board and preparation method using negative ion powder production
CN106618112A (en) * 2016-10-10 2017-05-10 宁波凯杜新材料科技有限公司 Anion carpet and preparing method thereof
CN107263670B (en) * 2017-07-18 2020-02-14 机械科学研究总院先进制造技术研究中心 Additive manufacturing method of gypsum-based relief decorative material

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