CN114481701B - Fireproof calcium silicate board surface sticker and preparation method and application thereof - Google Patents
Fireproof calcium silicate board surface sticker and preparation method and application thereof Download PDFInfo
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- CN114481701B CN114481701B CN202210084685.7A CN202210084685A CN114481701B CN 114481701 B CN114481701 B CN 114481701B CN 202210084685 A CN202210084685 A CN 202210084685A CN 114481701 B CN114481701 B CN 114481701B
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
- D21H27/18—Paper- or board-based structures for surface covering
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/21—Macromolecular organic compounds of natural origin; Derivatives thereof
- D21H17/24—Polysaccharides
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/21—Macromolecular organic compounds of natural origin; Derivatives thereof
- D21H17/24—Polysaccharides
- D21H17/28—Starch
- D21H17/29—Starch cationic
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/33—Synthetic macromolecular compounds
- D21H17/34—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D21H17/37—Polymers of unsaturated acids or derivatives thereof, e.g. polyacrylates
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/33—Synthetic macromolecular compounds
- D21H17/46—Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D21H17/53—Polyethers; Polyesters
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/33—Synthetic macromolecular compounds
- D21H17/46—Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D21H17/54—Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen
- D21H17/55—Polyamides; Polyaminoamides; Polyester-amides
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/63—Inorganic compounds
- D21H17/66—Salts, e.g. alums
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/63—Inorganic compounds
- D21H17/67—Water-insoluble compounds, e.g. fillers, pigments
- D21H17/68—Water-insoluble compounds, e.g. fillers, pigments siliceous, e.g. clays
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
- D21H21/18—Reinforcing agents
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
- D21H21/34—Ignifugeants
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Paper (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a fireproof calcium silicate board surface sticker and a preparation method and application thereof. The preparation method comprises the following steps: (1) Grinding the cleaned calcium silicate board sanding solid waste until the particle size is 200-600 nm to obtain the fireproof filler; (2) Mixing the fireproof filler with a plant fiber raw material with a beating degree of 35-45 DEG SR to prepare a mixed slurry with a solid content of 0.8-1.6 wt%, adding a flocculating agent and a reinforcing agent, and uniformly stirring and mixing to obtain an upper-mesh slurry; (3) And (3) carrying out net feeding molding on the net feeding slurry to obtain a wet paper web, and then squeezing and drying the wet paper web to obtain the fireproof calcium silicate board surface sticker. The calcium silicate board surface sticker utilizes the calcium silicate board sanding waste material with the main component of beige mullite as the fireproof filler, and can ensure the strength of paper sheets and improve the fireproof performance.
Description
Technical Field
The invention belongs to the technical field of calcium silicate boards, and particularly relates to a fireproof calcium silicate board surface sticker as well as a preparation method and application thereof.
Background
The calcium silicate board is a novel building and decoration board taking calcium and siliceous materials as continuous phases and plant fibers, chemical fibers or glass fibers and the like as reinforcing phases. The preparation process mainly comprises the processes of pulp flowing/net hanging forming, plate blank compacting, pre-curing, steam pressure curing, sanding, edge cutting and the like. The calcium silicate board has the advantages of high strength, small wet expansion rate, low heat conductivity coefficient, good fireproof performance, no toxicity, no harm and the like, and is an inorganic decorative board with great development potential. The surface of the calcium silicate board after sanding is dark in color, so that the whole attractiveness is not facilitated, the application of the calcium silicate board in decoration is severely limited, a large amount of solid waste materials with the main component of tobermorite are generated in the sanding process of the calcium silicate board, and the tobermorite is the main source of the fireproof performance of the calcium silicate board.
At present, in order to improve the decorative property of the calcium silicate board and improve the aesthetic degree, manufacturers often need to coat a large amount of latex and UV glue on the surface of the board or paste common decorative paper on the surface of the board, and the surface treatment mode can damage the fireproof performance of the calcium silicate board and has certain potential safety hazard.
Based on the problems existing in the production process of the calcium silicate board at present, a low-cost, attractive and fireproof calcium silicate board surface sticker is needed to be searched.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a preparation method of a fireproof calcium silicate board surface sticker.
The invention also aims to provide the fireproof calcium silicate board surface sticker prepared by the method.
It is a further object of the present invention to provide the use of a sticker on the surface of a fire-resistant calcium silicate board.
The purpose of the invention is realized by the following technical scheme:
a preparation method of a fireproof calcium silicate board surface sticker comprises the steps of utilizing solid waste materials generated in the sanding process of a calcium silicate board as fireproof filler of paper, mixing the fireproof filler with plant fibers, and making paper to prepare the fireproof calcium silicate board surface sticker; the method specifically comprises the following steps:
(1) Preparation of fire-proof filler
Grinding the cleaned sanding solid waste of the calcium silicate board until the particle size is 200-600 nm to obtain a fireproof filler;
(2) Preparation of Mixed slurry
Mixing the fireproof filler obtained in the step (1) with a plant fiber raw material with a beating degree of 35-45 DEG SR to prepare a mixed slurry with a solid content of 0.8-1.6 wt%, adding a flocculating agent and a reinforcing agent, and uniformly stirring and mixing to obtain an upper-mesh slurry;
(3) Paper sheet making
And (3) carrying out net surfing molding on the net surfing slurry obtained in the step (2) to obtain a wet paper web, and then squeezing and drying the wet paper web to obtain the fireproof calcium silicate board surface sticker.
The main component of the calcium silicate board sanding solid waste in the step (1) is tobermorite; preferably, the calcium silicate plate sanding solid waste material with tobermorite content not less than 50 percent.
The grinding in the step (1) is carried out by adopting a grinding machine.
The fireproof filler in the step (2) accounts for 30-50 wt% of the total solid content of the mixed slurry.
The plant fiber raw material in the step (2) is preferably one or more of softwood pulp, hardwood pulp and cotton pulp.
The flocculant in the step (2) is preferably one or more of polyacrylamide, polyaluminium chloride and polyethylene oxide; preferably one or more of polyacrylamide with molecular weight of 800-1200 ten thousand, polyaluminium chloride and polyethylene oxide with molecular weight of 500 ten thousand.
The flocculating agent in the step (2) accounts for 0.5-1.5 wt% of the total solid content of the mixed slurry.
The reinforcing agent in the step (2) is preferably one or more of cationic starch, chitosan (cationic chitosan) and polyamide polyamine epichlorohydrin.
The cationic starch is preferably quaternary ammonium salt etherified cationic starch.
The viscosity of the polyamide polyamine epichlorohydrin at 25 ℃ is less than or equal to 100mpa.s.
The reinforcing agent in the step (2) accounts for 0.3 to 1wt% of the total solid content of the mixed slurry; preferably 0.6 to 1wt% of the total solid content of the mixed slurry.
The quantitative amount of the paster on the surface of the fireproof calcium silicate board in the step (3) is 120-180 g/m 2 。
A fire-resistant calcium silicate board surface sticker prepared by any one of the methods described above.
The fireproof calcium silicate board surface sticker is applied to building materials.
The building material is an inorganic decorative plate, such as a calcium silicate plate and the like.
A use method of a fireproof calcium silicate board surface sticker is characterized in that after the fireproof calcium silicate board surface sticker is printed with a required color or pattern, an inorganic adhesive is used for adhering the sticker to a sanded calcium silicate board surface.
The inorganic adhesive is one or a mixture of two of a silicate inorganic adhesive and a sulfate inorganic adhesive; preferably, the inorganic adhesive is a silicate inorganic adhesive or a sulfate inorganic adhesive, or is prepared by mixing a silicate inorganic adhesive and a sulfate inorganic adhesive according to a mass ratio of 1.
The coating amount of the inorganic adhesive is 10g/m 2 。
Compared with the prior art, the invention has the following advantages and effects:
1. aiming at the problem that the fireproof performance of the plate is reduced because a large amount of latex and UV adhesive are coated on the surface of the existing calcium silicate plate or common decorative paper is attached on the surface of the existing calcium silicate plate, the invention provides the fireproof surface sticker which has low cost and excellent fireproof performance and is suitable for the calcium silicate plate.
2. The fireproof calcium silicate board surface sticker provided by the invention utilizes the sanding waste material of the calcium silicate board, the main component of which is beige mullite with a needle-shaped (fibrous) structure, as the fireproof filler, the fireproof filler has excellent fireproof performance, and combustion of plant fibers after being heated is effectively prevented by adhesion and interweaving, so that the sticker has better fireproof performance, and the temperature tolerance can reach 650 ℃; in addition, tobermorite can be well interwoven with paper fibers, and the paper strength is prevented from being obviously reduced when the filler content is high.
3. The invention can fully utilize the solid waste generated in the production process of the calcium silicate board, reduce the production cost, and the preparation method can be suitable for the field of preparation of the fireproof paster of the calcium silicate board with various purposes.
Detailed Description
The present invention will be described in further detail with reference to examples, but the embodiments of the present invention are not limited thereto. Experimental procedures without specifying specific conditions in the following examples are generally carried out under conventional conditions. The raw materials and reagents used in the following examples are commercially available unless otherwise specified.
In the present invention, all percentages (%) are mass percentages (wt%) unless otherwise specified.
The plant fiber raw material related in the embodiment of the invention is one or more of softwood pulp, hardwood pulp and cotton pulp, the beating degree is preferably 35-45 DEG SR, and the SR is purchased from Qingdao Jiunuo International trade company, inc.
The solid waste material of the calcium silicate board sanding, which is related in the embodiment of the invention, is the solid waste material generated in the sanding process of the calcium silicate board, the main component of the solid waste material is tobermorite (the content of the tobermorite is not less than 50 percent) with a needle-shaped (fibrous) structure, and the solid waste material is the sanding waste material obtained from a factory (Zhaoqing Sanle Integrated House manufacturing Co., ltd.) for manufacturing the calcium silicate board. The raw materials used for manufacturing the calcium silicate board are quartz sand, lime, portland cement No. 425 and plant fibers; wherein, the total calcium silicon ratio is 0.6-0.8, the plant fiber accounts for 5-10% of the total weight of the raw materials, and the plant fiber is unbleached softwood pulp (rainbow fish brand).
The reinforcing agent related in the embodiment of the invention is one or more of cationic starch, chitosan (also called cationic chitosan) and polyamide polyamine epichlorohydrin; the cationic starch is quaternary ammonium salt etherified cationic starch, which is purchased from Guangdong Virginia starch technology Co., ltd, the chitosan is purchased from Guangzhou Cinto trade Co., ltd, and the polyamide polyamine epoxy chloropropane is purchased from Ningsheng corporation of Japan.
The silicate inorganic adhesive and the sulfate inorganic adhesive related in the embodiment of the invention are purchased from Guangzhou Zhongshi composite material science and technology limited.
Example 1
(1) Preparing the fireproof filler: and (3) collecting and purifying (cleaning by using tap water) the calcium silicate board sanding solid waste, and grinding the purified sanding solid waste to the particle size of 200nm by using a grinding machine to obtain the fireproof filler.
(2) Mixing raw materials: mixing the fireproof filler obtained in the step (1) with softwood pulp fibers with a beating degree of 35 DEG SR to prepare mixed slurry with a solid content of 0.8 wt%; wherein the fire-retardant filler accounts for 30wt% of the total solid content. And adding a polyacrylamide (molecular weight 800-1200 ten thousand) flocculating agent accounting for 0.5wt% of the total solid content (namely the solid content of the fireproof filler and the softwood pulp fibers, the same below) and a cationic starch reinforcing agent accounting for 1wt% of the total solid content into the mixed slurry, and fully stirring to obtain the upper-mesh slurry.
(3) Paper making: forming the upper wire pulp obtained in the step (2) by a fourdrinier paper machine to form a wet paper web, and then squeezing and drying the wet paper web to obtain the wet paper web with the quantitative of 120g/m 2 Fireproof calcium silicate board surface stickers.
(4) Covering paper on the board: printing the surface sticker of the fireproof calcium silicate board prepared in the step (3) with the required color or pattern, and then using a silicate inorganic adhesive (the coating amount is 10 g/m) 2 ) A calcium silicate board (provided by zhaoqing sanle integrated house manufacturing ltd, a coated substrate, model: NA C R4 DB 2440 × 1220 × 6; density D = 1.1-1.2 g/cm 3 ) A surface.
Example 2
(1) Preparing the fireproof filler: and (3) collecting and purifying (cleaning by using tap water) the calcium silicate board sanding solid waste, and grinding the purified sanding solid waste to the particle size of 400nm by using a grinding machine to obtain the fireproof filler.
(2) Mixing raw materials: mixing the fireproof filler obtained in the step (1) with hardwood pulp fibers with a beating degree of 40 DEG SR to prepare mixed slurry with a solid content of 1.2 wt%; wherein the fire-retardant filler comprises 40wt% of the total solids content. To the above mixed slurry, a polyaluminum chloride (purchased from tianyu environmental protection limited, model number Lason-906) flocculant in an amount of 1.0wt% of the total solid content and a cationic chitosan enhancer in an amount of 0.6wt% of the total solid content were added, and sufficiently stirred to obtain a top-feed slurry.
(3) Making paper sheets: forming the upper wire pulp obtained in the step (2) by a fourdrinier paper machine to form a wet paper web, squeezing the wet paper web, and drying to obtain the wet paper web with the fixed weight of 150g/m 2 Fire-resistant calcium silicate board surface stickers.
(4) Covering paper on the board: after printing the needed color or pattern on the surface sticker of the fireproof calcium silicate board prepared in the step (3), sticking the sticker with a sulfate inorganic adhesiveA sanded calcium silicate board (provided by Zhaoqing Sanle Integrated House manufacturing Co., ltd., coated substrate, model number: NA C4 DB 2440 × 1220 × 6; density D = 1.1-1.2 g/cm) 3 ) A surface.
Example 3
(1) Preparing the fireproof filler: and (3) collecting and purifying (cleaning with tap water) the calcium silicate board sanding solid waste, and grinding the purified sanding solid waste to the particle size of 600nm by using a grinding machine to obtain the fireproof filler.
(2) Mixing raw materials: mixing the fireproof filler obtained in the step (1) with cotton pulp fiber with a beating degree of 45 DEG SR to prepare mixed slurry with a solid content of 1.6 wt%; wherein the fire-retardant filler accounts for 50wt% of the total solid content. Adding a polyoxyethylene (molecular weight 500 million, dow.) flocculant accounting for 1.5wt% of the total solid content and a polyamide polyamine epichlorohydrin (which is purchased from Mick chemical technology and has the model of MX-1201 and the viscosity of not more than 100mpa.s (25 ℃)) reinforcing agent accounting for 1.0wt% of the total solid content into the mixed slurry, and fully stirring to obtain the top-wire slurry.
(3) Making paper sheets: forming the upper wire pulp obtained in the step (2) by a fourdrinier paper machine to form a wet paper web, squeezing the wet paper web, and drying to obtain the wet paper web with the fixed weight of 180g/m 2 Fireproof calcium silicate board surface stickers.
(4) Covering paper on the board: after printing the surface sticker of the fireproof calcium silicate board prepared in the step (3) with the required color or pattern, mixing silicate and sulfate with inorganic adhesive (the mass ratio is 1 2 ) The calcium silicate board coated with the sanded paste (provided by zhaoqing sanle integrated house manufacturing ltd, coating substrate, model: NA C R4 DB 2440 × 1220 × 6; density D = 1.1-1.2 g/cm 3 ) A surface.
Comparative example 1
The comparative example, without the addition of fire-retardant filler, comprises the following specific steps:
(1) Mixing raw materials: preparing the softwood pulp fibers with the beating degree of 35 DEG SR into slurry with the solid content of 0.8wt%, adding polyacrylamide (with the molecular weight of 800-1200 ten thousand) flocculant accounting for 0.5wt% of the total solid content and cationic starch reinforcing agent accounting for 1wt% of the total solid content into the slurry, and fully stirring to obtain the upper net slurry.
(2) Paper making: forming the upper wire pulp obtained in the step (1) by a fourdrinier paper machine to form a wet paper web, and then squeezing and drying the wet paper web to obtain the wet paper web with the quantitative of 120g/m 2 The surface of the calcium silicate board is pasted with paper.
(3) Covering paper on the board: after the surface of the calcium silicate board prepared in the step (2) is subjected to paper pasting printing to obtain the required color or pattern, using a silicate inorganic adhesive (the coating amount is 10 g/m) 2 ) The calcium silicate board coated with the sanded paste (provided by zhaoqing sanle integrated house manufacturing ltd, coating substrate, model: NA C R4 DB 2440 × 1220 × 6; density D = 1.1-1.2 g/cm 3 ) A surface.
Comparative example 2
In the comparative example, the conventional filler calcium carbonate with the particle size of 10 mu m is selected to replace the calcium silicate board sanding solid waste, and the specific steps are as follows:
(1) Mixing raw materials: calcium carbonate filler (pure calcium carbonate is used) with the particle size of 10 mu m is mixed with hardwood pulp fiber with the beating degree of 40 DEG SR to prepare mixed slurry with the solid content of 1.2wt%, wherein the calcium carbonate filler accounts for 40wt% of the total solid content. Polyaluminum chloride (purchased from environment protection limited, aerospace, model number Lason-906) flocculant accounting for 1.0wt% of the total solid content and a cationic starch reinforcing agent accounting for 0.6wt% of the total solid content were added to the above mixed slurry, and sufficiently stirred to obtain a top sizing agent.
(2) Making paper sheets: forming the upper wire pulp obtained in the step (1) by a fourdrinier paper machine to form a wet paper web, and then squeezing and drying the wet paper web to obtain the wet paper web with the quantitative of 150g/m 2 The surface of the calcium silicate board is pasted with paper.
(3) Covering paper on the board: printing the needed color or pattern on the calcium silicate board surface paster prepared in the step (2), and then using a sulfate inorganic adhesive (the coating amount is 10 g/m) 2 ) A calcium silicate board (provided by zhaoqing sanle integrated house manufacturing ltd, a coated substrate, model: NA C R4 DB 2440 × 1220 × 6; density D = 1.1-1.2 g/cm 3 ) A surface.
Effects of the embodiment
The calcium silicate board surface stickers prepared in examples 1 to 3 and comparative examples 1 to 2 were tested for tensile strength (GB/T12914-2018), thickness (GB/T451.3-2002), whiteness (GB/T22880-2008) and stiffness (GB/T22364-2008), and the calcium silicate board after the board was coated with paper was tested for board incombustibility (GB/T5465-2010) and withstand temperature (GB/T5465-2010), and the results are shown in table 1 below.
TABLE 1 test of the performance of the example and comparative example plates
Tests prove that the surface paster suitable for the calcium silicate board can be prepared by using the calcium silicate board sanding waste material with the main component of tobermorite as a fireproof filler, and the surface paster has the advantages of low cost, excellent fireproof performance, temperature resistance of 650 ℃ and A-grade plate non-combustibility. The surface sticker prepared without adding the fireproof filler or adding the conventional calcium carbonate has B-grade incombustibility and greatly reduced resistant temperature. It is worth noting that the fireproof filler can effectively solve solid waste generated in the preparation process of the calcium silicate board and improve the closed loop degree of the production process. The data prove that the fireproof surface paster which has low cost and excellent fireproof performance and is suitable for the calcium silicate board can be prepared by adopting the technology of the invention.
The above embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents thereof, and all such modifications are intended to be included in the scope of the present invention.
Claims (7)
1. The preparation method of the fireproof calcium silicate board surface sticker is characterized by comprising the following steps:
(1) Preparation of the fireproof Filler
Grinding the cleaned calcium silicate board sanding solid waste until the particle size is 200-600 nm to obtain the fireproof filler;
(2) Preparation of Mixed slurry
Mixing the fireproof filler obtained in the step (1) with a plant fiber raw material with a beating degree of 35-45 DEG SR to prepare a mixed slurry with a solid content of 0.8-1.6 wt%, adding a flocculating agent and a reinforcing agent, and uniformly stirring and mixing to obtain an upper-mesh slurry;
(3) Paper sheet making
Carrying out net feeding molding on the net feeding slurry obtained in the step (2) to obtain a wet paper web, and then squeezing and drying the wet paper web to obtain the surface sticker of the fireproof calcium silicate board;
the calcium silicate board sanding solid waste in the step (1) is calcium silicate board sanding solid waste with tobermorite content not lower than 50%;
the plant fiber raw material in the step (2) is one or more of softwood pulp, hardwood pulp and cotton pulp;
the flocculating agent in the step (2) is one or more of polyacrylamide, polyaluminium chloride and polyethylene oxide;
the reinforcing agent in the step (2) is one or more of cationic starch, chitosan and polyamide polyamine epichlorohydrin; wherein the cationic starch is quaternary ammonium salt etherified cationic starch;
the fireproof filler in the step (2) accounts for 30-50 wt% of the total solid content of the mixed slurry;
the flocculating agent in the step (2) accounts for 0.5 to 1.5wt percent of the total solid content of the mixed slurry;
the reinforcing agent in the step (2) accounts for 0.3 to 1wt% of the total solid content of the mixed slurry.
2. The method of making a fire resistant calcium silicate board surface sticker as claimed in claim 1, wherein:
the reinforcing agent in the step (2) accounts for 0.6-1 wt% of the total solid content of the mixed slurry.
3. The method of making a fire-resistant calcium silicate board surface sticker of claim 1, wherein:
the quantitative amount of the paster on the surface of the fireproof calcium silicate board in the step (3) is 120-180 g/m 2 。
4. A fire-resistant calcium silicate board surface sticker, characterized by: prepared by the process of any one of claims 1 to 3.
5. Use of the fire-resistant calcium silicate board surface sticker of claim 4 in a building material.
6. The use method of the fireproof calcium silicate board surface sticker is characterized by comprising the following steps of: after printing the sticker of claim 4 with a desired color or pattern, the sticker is attached to the sanded calcium silicate board surface using an inorganic adhesive.
7. The method of using a fire-resistant calcium silicate board surface sticker of claim 6, wherein:
the inorganic adhesive is one or a mixture of two of a silicate inorganic adhesive and a sulfate inorganic adhesive.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH0684599B2 (en) * | 1981-12-08 | 1994-10-26 | 日本インシュレーション株式会社 | Calcium silicate paper and its manufacturing method |
| JP4866758B2 (en) * | 2007-02-28 | 2012-02-01 | 北越紀州製紙株式会社 | Non-combustible sheet or non-combustible molded product |
| CN103643589A (en) * | 2013-11-26 | 2014-03-19 | 天津商业大学 | Flame retardant paper filled with mineral fiber and preparation method thereof |
| CN105200846B (en) * | 2015-09-21 | 2017-09-29 | 大唐国际发电股份有限公司高铝煤炭资源开发利用研发中心 | A kind of calcium silicates is filled with neutral sizing and preparation method thereof |
| CN108130808B (en) * | 2017-12-18 | 2020-04-28 | 佛山市板缘装饰材料有限公司 | Veneering decorative paper with flame-retardant effect and flame-retardant veneering artificial board adopting same |
| CN109881528B (en) * | 2019-03-15 | 2020-09-01 | 杭州华旺新材料科技股份有限公司 | Flame-retardant decorative base paper prepared from flame-retardant plant fibers and preparation method thereof |
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