CN113858759B - Technological method for preparing light large plate by adopting saw mud - Google Patents

Technological method for preparing light large plate by adopting saw mud Download PDF

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CN113858759B
CN113858759B CN202111034125.2A CN202111034125A CN113858759B CN 113858759 B CN113858759 B CN 113858759B CN 202111034125 A CN202111034125 A CN 202111034125A CN 113858759 B CN113858759 B CN 113858759B
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saw mud
foaming
parts
large plate
glass fiber
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CN113858759A (en
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王继亮
刘冬
高家顺
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Zhongzhilian New Material Technology Shandong Co ltd
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Zhongzhilian New Material Technology Shandong Co ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/08—Impregnating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
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    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
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    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/0004—Cutting, tearing or severing, e.g. bursting; Cutter details
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00—Ancillary operations in connection with laminating processes
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    • C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
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Abstract

The invention belongs to the technical field of preparation of light large plates, and particularly relates to a process method for preparing a light large plate by using saw mud. The invention relates to a process method for preparing a light large plate by adopting saw mud, which comprises the following steps: preparing dipping slurry, dipping a glass fiber mat and paving the glass fiber mat on a separation membrane, rolling and coating foaming saw mud mortar, dipping the glass fiber mat and paving the glass fiber mat on the separation membrane, pressing a roller for thickness fixing, drying and curing, and performing aftertreatment. The light large plate prepared by the process method has the characteristics of fastness, no deformation, glaze cracking resistance, freezing resistance, pollution prevention, self-cleaning, acid and alkali corrosion resistance, fire resistance, shock resistance, aging resistance, shock resistance, sound insulation, heat insulation, light dead weight and convenient construction, and is a green property building material and high-quality parts of assembly type buildings which are greatly propelled by China.

Description

Technological method for preparing light large plate by adopting saw mud
Technical Field
The invention belongs to the technical field of preparation of light large plates, and particularly relates to a process method for preparing a light large plate by using saw mud.
Background
The stone resources in China mainly comprise marble and granite, and are mainly concentrated in Shandong, zhejiang, fujian and other places. The mountain eastern province sunlight city stone material is rich in resources, and the stone processing industry has become an important economic support industry. However, in the stone exploitation and production process, a large amount of scraps, saw dust, abrasive dust and other waste materials are generated, and the scraps, the saw dust and the water are mixed to form saw mud, so that the ecological environment is seriously polluted, and a large amount of land resources are wasted. According to preliminary statistics, only in sunlight, stone waste residues and saw mud reach tens of millions of tons after years of accumulation, and land occupation is thousands of mu. How to treat and reasonably utilize stone sawing mud, changes waste into valuable, and becomes a major problem to be solved urgently by stone processing enterprises and local government.
The acceleration of building system changes is based on the advanced development of building materials and products. The building material and product should have the function of meeting the current ecological building requirement, just like the invention of steel and cement, the high-rise large-span building is promoted. Novel building materials with complete functions and excellent use performance are promoting the appearance of new building systems. Thus, the lightweight large panel has an incomparable advantage as a new building material.
How to use the solid waste of saw mud for preparing the light large plate is a technical problem to be solved.
Disclosure of Invention
The purpose of the invention is that: provides a process method for preparing a light large plate by adopting saw mud. The light large plate uses the saw mud as a raw material, widens the application range of the saw mud, improves the added value of the saw mud, and greatly reduces the production cost of the light large plate.
The invention relates to a process method for preparing a light large plate by adopting saw mud, which comprises the following steps: preparing dipping slurry, dipping a glass fiber mat and paving the glass fiber mat on a separation membrane, rolling and coating foaming saw mud mortar, dipping the glass fiber mat and paving the glass fiber mat on the separation membrane, pressing a roller for thickness fixing, drying and curing, and performing aftertreatment.
Preferably, the process method for preparing the light large plate by adopting the sawing mud provided by the invention comprises the following steps of:
(1) Impregnating a glass fiber felt with the impregnating slurry, and laying the impregnated glass fiber felt on the isolating membrane;
(2) Uniformly roll-coating the foaming saw mud mortar on the glass fiber mat after impregnation;
(3) Impregnating a glass fiber felt with impregnating slurry, and laying the impregnated glass fiber felt on the foaming saw mud mortar;
(4) Adopting two pairs of rollers to carry out thickness shaping;
(5) Finally, drying and post-treatment are carried out to prepare the light large plate.
Wherein:
the isolating film in the step (1) is one of a polyester isolating film, a PE isolating film or a PET film.
The roll coating thickness of the foaming saw mud mortar in the step (2) is 4-8mm.
And (3) coating a Teflon anti-sticking coating on the surface of the roller in the step (4), and performing thickness shaping by using a gap between the two rollers.
The thickness in step (4) ranges from 4 to 8mm.
The drying temperature in the step (5) is 70-90 ℃, the humidity is 70-85%, and the time is 100-150min.
And (5) performing post-treatment, namely cutting by adopting a trimming cutting machine, stacking and packaging to prepare the light large plate.
The foaming saw mud mortar consists of the following raw materials in parts by weight:
wherein: the water content of the saw mud is 10-15%,the granularity is 100-400 meshes; wherein, the chemical composition comprises the following components in percentage by mass: siO (SiO) 2 The content of (C) is 70% -75%, al 2 O 3 The content of Na is 13-14 percent 2 The content of O is 3-4.5%, K 2 The content of O is 3% -3.5%, the content of CaO is 0.5% -1.5%, and the content of MgO is 0.03% -0.06%.
The emulsion is one or a mixture of a plurality of pure acrylic emulsion, styrene acrylic emulsion or silicone acrylic emulsion.
The white cement is 42.5 white cement.
The short fiber is polypropylene short fiber with the length of 3-6mm and the density of 0.90-0.92g/cm 3 。
The foaming agent is one of azodicarbonamide or diisopropyl azodicarbonate.
The accelerator is one of sodium aluminate, calcium fluoaluminate, calcium chloride, sodium chloride or water glass.
The cellulose is one or a mixture of more of hydroxymethyl cellulose, hydroxyethyl cellulose and hydroxypropyl methyl cellulose.
The alkali resistant agent is a commercial product.
According to the foaming saw mud mortar, the components play respective roles in obtaining the saw mud mortar with excellent performance, and the stone saw mud is used as the raw material for preparing the light large plate, wherein the saw mud accounts for more than 70%, is an absolute main raw material, and can effectively solve the pollution problem of the saw mud; the short fibers are used for improving the mechanical properties of the light large plate; the accelerator is used for accelerating the coagulation speed of the blank, so that the blank is convenient to form; the added cellulose is used for improving the fluidity of mortar and increasing the strength of raw glaze, so that the raw glaze is firmly combined with a green body and is not easy to peel off.
The preparation method of the foaming saw mud mortar comprises the following steps:
(1) Adding the emulsion and water into a paint dispersing agent drawing cylinder to stir, controlling the stirring rotation speed to be 1100-1200r/min, and then adding cellulose to disperse for 30-60min;
(2) Adding a foaming agent and short fibers to disperse for 3-6min, and controlling the rotating speed to be 1100-1200r/min;
(3) Adding white cement, an accelerator and an alkali resistant agent to disperse for 10-15min, and controlling the rotating speed to be 1000-1100r/min;
(4) Finally adding the saw mud to disperse for 10-20min, and controlling the rotating speed to be 600-700r/min to prepare the saw mud foaming mortar.
The impregnating slurry consists of the following raw materials in parts by weight:
wherein:
the emulsion is one or a mixture of a plurality of pure acrylic emulsion, styrene acrylic emulsion or silicone acrylic emulsion.
The white cement is 42.5 white cement.
The dispersing agent is one or a mixture of more of ammonium polymethacrylate, methylcellulose, ammonium citrate, polyethylene glycol or triethanolamine.
The defoaming agent is one or more of mineral oil defoaming agent, organic silicon resin defoaming agent or organic polar compound defoaming agent, and is a commercial product.
The retarder is water glass (sodium metasilicate) and sodium carbonate (Na 2 CO 3 ) Or one of Sodium Tripolyphosphate (STPP).
The cellulose is one or a mixture of more of hydroxymethyl cellulose, hydroxyethyl cellulose and hydroxypropyl methyl cellulose.
The toner is one or a mixture of more of ferric oxide, titanium dioxide, chromium oxide, ferrous ferricyanide or barium manganate toner.
According to the impregnation slurry, the dispersing agent is added to fully disperse powder particles, so that the powder particles are prevented from settling and agglomerating, and stable suspension slurry is obtained; the retarder is used for improving the fluidity of the blank and glaze slurry, so that the slurry has proper viscosity and good fluidity under the condition of low water content (high specific gravity), is convenient to operate, saves energy and reduces consumption; the added cellulose is used for improving the fluidity of mortar and increasing the strength of raw glaze.
The preparation method of the impregnating slurry comprises the following steps:
(1) Firstly, adding the emulsion and water into a paint dispersing agent drawing cylinder to stir, controlling the stirring rotation speed to be 1000-1200r/min, and stirring for 30-60min;
(2) Then adding toner, cellulose, dispersing agent, defoaming agent and retarder, dispersing for 10-30min, and controlling the stirring rotation speed to 1000-1500r/min;
(3) Finally adding white cement to disperse for 10-30min, and controlling the stirring rotation speed to be 1000-1500r/min to prepare the dipping slurry.
Wherein:
the viscosity of the impregnating slurry prepared in the step (3) is 0.3-0.6 Pa.s.
Compared with the prior art, the invention has the following beneficial effects:
(1) The process for preparing the light large plate by adopting the saw mud has the advantages of low-cost and easily-obtained raw materials, and meanwhile, harmless treatment and resource utilization of the saw mud are realized.
(2) The process method for preparing the light large plate by adopting the saw mud has the advantages of simple process, easy parameter control and suitability for large-scale production.
(3) The technological method for preparing the light large plate by adopting the saw mud has high saw mud utilization rate, various functions of the light large plate, high market demand and the like, can be used as a partition wall, a wall decoration plate and the like, explores a brand-new road for the saw mud treatment of a local stone enterprise, provides a direction for the industrial transformation of the stone processing enterprise, and improves the added value of products.
(4) The light large plate prepared by the process method has the characteristics of fastness, no deformation, glaze cracking resistance, freezing resistance, pollution prevention, self-cleaning, acid and alkali corrosion resistance, fire resistance, shock resistance, aging resistance, shock resistance, sound insulation, heat insulation, light dead weight and convenient construction, and is a green property building material and high-quality parts of assembly type buildings which are greatly propelled by China.
Detailed Description
The invention is further described below with reference to examples.
Example 1
The process for preparing the light large plate by using the saw mud in the embodiment 1 comprises the following steps:
(1) Impregnating a glass fiber felt with the impregnating slurry, and laying the impregnated glass fiber felt on the isolating membrane;
(2) Uniformly roll-coating the foaming saw mud mortar on the glass fiber mat after impregnation;
(3) Impregnating a glass fiber felt with impregnating slurry, and laying the impregnated glass fiber felt on the foaming saw mud mortar;
(4) Adopting two pairs of rollers to carry out thickness shaping;
(5) Finally, drying and post-treatment are carried out to prepare the light large plate.
Wherein:
the isolating film in the step (1) is a polyester isolating film.
The roll coating thickness of the foaming saw mud mortar in the step (2) is 7mm.
And (3) coating a Teflon anti-sticking coating on the surface of the roller in the step (4), and performing thickness shaping by using a gap between the two rollers.
The thickness in step (4) was in the range of 5mm.
The drying temperature in the step (5) is 90 ℃, the humidity is 70%, and the time is 110min.
And (5) performing post-treatment, namely cutting by adopting a trimming cutting machine, stacking and packaging to prepare the light large plate.
The foaming saw mud mortar consists of the following raw materials in parts by weight:
wherein:
the water content of the saw mud is 13%, and the granularity is 400 meshes; wherein, the chemical composition comprises the following components in percentage by mass: siO (SiO) 2 Is 75% of Al 2 O 3 Is 14% of Na 2 O content is 4%, K 2 The O content was 3%, the CaO content was 0.5%, and the MgO content was 0.03%.
The emulsion is a mixture of pure acrylic emulsion and styrene acrylic emulsion.
The white cement is 42.5 white cement.
The short fiber is polypropylene short fiber with the length of 3mm and the density of 0.90g/cm 3 。
The foaming agent is azodicarbonamide.
The accelerator is sodium aluminate.
The cellulose is hydroxyethyl cellulose.
The alkali resistant agent is KJ-01 produced by Beijing crystal rock.
The preparation method of the foaming saw mud mortar comprises the following steps:
(1) Adding the emulsion and water into a paint dispersing agent drawing cylinder to stir, controlling the stirring rotation speed to 1200r/min, and then adding cellulose to disperse for 40min;
(2) Adding a foaming agent and short fibers, dispersing for 5min, and controlling the rotating speed at 1200r/min;
(3) Adding white cement, an accelerator and an alkali resistant agent, dispersing for 12min, and controlling the rotating speed at 1000r/min;
(4) Finally adding saw mud, dispersing for 15min, and controlling the rotating speed at 700r/min to prepare the saw mud foaming mortar.
The impregnating slurry consists of the following raw materials in parts by weight:
wherein: the emulsion is a mixture of pure acrylic emulsion and styrene acrylic emulsion.
The white cement is 42.5 white cement.
The dispersing agent is a mixture of ammonium polymethacrylate and methyl cellulose.
The defoamer is a mineral oil defoamer and is a commercial product of Guizhou delfeng DF-801.
The retarder is water glass (sodium metasilicate).
The cellulose is hydroxyethyl cellulose.
The toner is ferric oxide toner.
The preparation method of the impregnating slurry comprises the following steps:
(1) Firstly, adding emulsion and water into a paint dispersing agent drawing cylinder to stir, controlling the stirring rotation speed to be 1000r/min, and stirring for 50min;
(2) Then adding toner, cellulose, dispersing agent, defoaming agent and retarder, dispersing for 20min, and controlling the stirring rotation speed to 1200r/min;
(3) Finally adding white cement to disperse for 30min, and controlling the stirring rotation speed at 1200r/min to prepare the dipping slurry.
Wherein:
the viscosity of the impregnation slurry prepared in the step (3) was 0.4pa·s.
The light large plate prepared in the embodiment 1 has the characteristics of fastness, no deformation, glaze crack resistance, freezing resistance, fouling resistance, self-cleaning property, acid and alkali corrosion resistance, fire resistance, shock resistance, aging resistance, shock resistance, sound insulation, heat insulation, light dead weight and convenience in construction.
Example 2
The process for preparing the light large plate by using the saw mud in the embodiment 2 comprises the following steps:
(1) Impregnating a glass fiber felt with the impregnating slurry, and laying the impregnated glass fiber felt on the isolating membrane;
(2) Uniformly roll-coating the foaming saw mud mortar on the glass fiber mat after impregnation;
(3) Impregnating a glass fiber felt with impregnating slurry, and laying the impregnated glass fiber felt on the foaming saw mud mortar;
(4) Adopting two pairs of rollers to carry out thickness shaping;
(5) Finally, drying and post-treatment are carried out to prepare the light large plate.
Wherein:
the isolating film in the step (2) is a PE isolating film.
The roll coating thickness of the foaming saw mud mortar in the step (2) is 6mm.
And (3) coating a Teflon anti-sticking coating on the surface of the roller in the step (4), and performing thickness shaping by using a gap between the two rollers.
The range of values for the thickness described in step (4) is 4mm.
The drying temperature in the step (5) is 70 ℃, the humidity is 85%, and the time is 150min.
And (5) performing post-treatment, namely cutting by adopting a trimming cutting machine, stacking and packaging to prepare the light large plate.
Wherein:
the foaming saw mud mortar consists of the following raw materials in parts by weight:
wherein:
the water content of the saw mud is 10%, and the granularity is 400 meshes; wherein, the chemical composition comprises the following components in percentage by mass: siO (SiO) 2 Is 75% of Al 2 O 3 Is 14% of Na 2 O content is 4%, K 2 The O content was 3%, the CaO content was 0.5%, and the MgO content was 0.03%.
The emulsion is a mixture of pure acrylic emulsion and silicone acrylic emulsion.
The white cement is 42.5 white cement.
The short fiber is polypropylene short fiber with the length of 3mm and the density of 0.90g/cm 3 。
The foaming agent is diisopropyl azodicarboxylate.
The accelerator is calcium fluoaluminate.
The cellulose is hydroxypropyl methyl cellulose.
The alkali resistant agent is KJ-01 produced by Beijing crystal rock.
The preparation method of the foaming saw mud mortar comprises the following steps:
(1) Adding the emulsion and water into a paint dispersing agent drawing cylinder to stir, controlling the stirring rotation speed to 1100r/min, and then adding cellulose to disperse for 50min;
(2) Adding a foaming agent and short fibers, dispersing for 6min, and controlling the rotating speed at 1100r/min;
(3) Adding white cement, an accelerator and an alkali resistant agent, dispersing for 11min, and controlling the rotating speed at 1100r/min;
(4) Finally adding saw mud, dispersing for 10min, and controlling the rotating speed at 700r/min to prepare the saw mud foaming mortar.
The impregnating slurry consists of the following raw materials in parts by weight:
wherein:
wherein: the emulsion is a mixture of pure acrylic emulsion and silicone acrylic emulsion.
The white cement is 42.5 white cement.
The dispersing agent is a mixture of ammonium polymethacrylate and methyl cellulose.
The defoamer is a commercially available silicone resin defoamer, and the Japanese letter silicone resin defoamer X-50-1090B.
The retarder is sodium carbonate (Na 2 CO 3 )。
The cellulose is hydroxypropyl methyl cellulose.
The toner is ferric oxide toner.
The preparation method of the impregnating slurry comprises the following steps:
(1) Firstly, adding emulsion and water into a paint dispersing agent drawing cylinder to stir, controlling the stirring rotation speed to be 1100r/min, and stirring for 40min;
(2) Then adding toner, cellulose, dispersing agent, defoaming agent and retarder, dispersing for 10min, and controlling the stirring rotation speed to 1500r/min;
(3) Finally adding white cement to disperse for 20min, and controlling the stirring rotation speed at 1300r/min to prepare the dipping slurry.
Wherein:
the viscosity of the impregnation slurry prepared in the step (3) was 0.3pa·s.
The light large plate prepared in the embodiment 2 has the characteristics of fastness, no deformation, glaze crack resistance, freezing resistance, fouling resistance, self-cleaning property, acid and alkali corrosion resistance, fire resistance, shock resistance, aging resistance, shock resistance, sound insulation, heat insulation, light dead weight and convenience in construction.
Example 3
The process for preparing the light large plate by using the saw mud in the embodiment 3 comprises the following steps:
(1) Impregnating a glass fiber felt with the impregnating slurry, and laying the impregnated glass fiber felt on the isolating membrane;
(2) Uniformly roll-coating the foaming saw mud mortar on the glass fiber mat after impregnation;
(3) Impregnating a glass fiber felt with impregnating slurry, and laying the impregnated glass fiber felt on the foaming saw mud mortar;
(4) Adopting two pairs of rollers to carry out thickness shaping;
(5) Finally, drying and post-treatment are carried out to prepare the light large plate.
Wherein:
the isolating film in the step (2) is a PET film.
The roll coating thickness of the foaming saw mud mortar in the step (2) is 8mm.
And (3) coating a Teflon anti-sticking coating on the surface of the roller in the step (4), and performing thickness shaping by using a gap between the two rollers.
The range of values for the thickness described in step (4) is 7mm.
The drying temperature in the step (5) is 90 ℃, the humidity is 70%, and the time is 120min.
And (5) performing post-treatment, namely cutting by adopting a trimming cutting machine, stacking and packaging to prepare the light large plate.
Wherein:
the foaming saw mud mortar consists of the following raw materials in parts by weight:
wherein:
the water content of the saw mud is 15%, and the granularity is 400 meshes; wherein, the chemical composition comprises the following components in percentage by mass: siO (SiO) 2 Is 75% of Al 2 O 3 Is 14% of Na 2 O content is 4%, K 2 The O content was 3%, the CaO content was 0.5%, and the MgO content was 0.03%.
The emulsion is a mixture of styrene-acrylic emulsion and silicone-acrylic emulsion.
The white cement is 42.5 white cement.
The short fiber is polypropylene short fiber with the length of 3mm and the density of 0.90g/cm 3 。
The foaming agent is diisopropyl azodicarboxylate.
The accelerator is water glass.
The cellulose is a mixture of hydroxyethyl cellulose and hydroxypropyl methylcellulose.
The alkali resistant agent is KJ-01 produced by Beijing crystal rock.
The preparation method of the foaming saw mud mortar comprises the following steps:
(1) Adding the emulsion and water into a paint dispersing agent drawing cylinder to stir, controlling the stirring rotation speed to 1200r/min, and then adding cellulose to disperse for 60min;
(2) Adding a foaming agent and short fibers, dispersing for 6min, and controlling the rotating speed at 1200r/min;
(3) Adding white cement, an accelerator and an alkali resistant agent, dispersing for 15min, and controlling the rotating speed at 1100r/min;
(4) Finally adding saw mud, dispersing for 20min, and controlling the rotating speed at 700r/min to prepare the saw mud foaming mortar.
The impregnating slurry consists of the following raw materials in parts by weight:
wherein:
wherein: the emulsion is a mixture of styrene-acrylic emulsion and silicone-acrylic emulsion.
The white cement is 42.5 white cement.
The dispersing agent is a mixture of ammonium citrate and triethanolamine.
The defoamer is a commercially available silicone resin defoamer, and the Japanese letter silicone resin defoamer X-50-1090B.
The retarder is sodium carbonate (Na 2 CO 3 )。
The cellulose is a mixture of hydroxyethyl cellulose and hydroxypropyl methylcellulose.
The toner is titanium dioxide toner.
The preparation method of the impregnating slurry comprises the following steps:
(1) Firstly, adding emulsion and water into a paint dispersing agent drawing cylinder to stir, controlling the stirring rotation speed to be 1000r/min, and stirring for 60min;
(2) Then adding toner, cellulose, dispersing agent, defoaming agent and retarder, dispersing for 30min, and controlling the stirring rotation speed to 1100r/min;
(3) Finally adding white cement to disperse for 20min, and controlling the stirring rotation speed at 1300r/min to prepare the dipping slurry.
Wherein:
the viscosity of the impregnation slurry prepared in the step (3) was 0.6pa·s.
The light large plate prepared in the embodiment 3 has the characteristics of fastness, no deformation, glaze crack resistance, freezing resistance, fouling resistance, self-cleaning property, acid and alkali corrosion resistance, fire resistance, shock resistance, aging resistance, shock resistance, sound insulation, heat insulation, light dead weight and convenience in construction.
Comparative example 1
The light large plate of the comparative example 1 is prepared from impregnating slurry and foaming mortar, wherein the raw materials and the preparation method of the impregnating slurry are the same as those of the example 1, and the foaming mortar consists of the following raw materials: 8 parts of Portland cement, 3 parts of calcined alumina, 58 parts of quartz sand, 6 parts of emulsion, 20 parts of kaolin and 3.5 parts of foaming agent; wherein the emulsion adopts a mixture of pure acrylic emulsion and styrene-acrylic emulsion; the foaming agent is azodicarbonamide. When in preparation, the raw materials are stirred by a stirrer, water accounting for 25 percent of the total weight of the raw materials is added until the raw materials are fully dissolved and gelled, foaming slurry is prepared, and then the light large plate is prepared by adopting the method of the embodiment 1.
The light-weight large panels prepared in examples 1 to 3 and comparative example 1 were subjected to performance test, and the results are shown in the following table 1:
TABLE 1 results of light-weight large Board Performance test
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Claims (8)

1. A process method for preparing a light large plate by using saw mud is characterized by comprising the following steps of: the method comprises the following steps: preparing dipping slurry, dipping a glass fiber mat and paving the glass fiber mat on a separation membrane, rolling and coating foaming saw mud mortar, dipping the glass fiber mat and paving the glass fiber mat on the separation membrane, pressing a roller for thickness fixing, drying and curing, and performing aftertreatment;
wherein:
the foaming saw mud mortar consists of the following raw materials in parts by weight:
690-710 parts of saw mud
50-60 parts of emulsion
140-160 parts of white cement
40-60 parts of water
3-7 parts of short fiber
1-3 parts of foaming agent
3-7 parts of accelerator
Cellulose 1-3 parts
1.5-3 parts of alkali resistant agent;
wherein: the water content of the saw mud is 10-15%, and the granularity is 100-400 meshes; the sawing mud comprises the following chemical components in percentage by mass: siO (SiO) 2 The content of (C) is 70% -75%, al 2 O 3 The content of Na is 13-14 percent 2 The content of O is 3-4.5%, K 2 3 to 3.5 percent of O, 0.5 to 1.5 percent of CaO and 0.03 to 0.06 percent of MgO;
the short fibers in the foaming saw mud mortar are polypropylene short fibers, the length is 3-6mm, and the density is 0.90-0.92g/cm 3 ；
The impregnating slurry consists of the following raw materials in parts by weight:
380-420 parts of emulsion
380-420 parts of water
170-190 parts of white cement
2-5 parts of dispersing agent
1-3 parts of defoaming agent
Retarder 1-1.5 parts
Cellulose 1.5-2.5 parts
1.5-2.5 parts of toner.
2. The process for preparing a light-weight large plate by using saw mud according to claim 1, wherein the process comprises the following steps: the method comprises the following steps:
(1) Impregnating a glass fiber felt with the impregnating slurry, and laying the impregnated glass fiber felt on the isolating membrane;
(2) Uniformly roll-coating the foaming saw mud mortar on the glass fiber mat after impregnation;
(3) Impregnating a glass fiber felt with impregnating slurry, and laying the impregnated glass fiber felt on the foaming saw mud mortar;
(4) Adopting two pairs of rollers to carry out thickness shaping;
(5) Finally, drying and post-treatment are carried out to prepare the light large plate.
3. The process for preparing a light-weight large plate by using saw mud according to claim 2, wherein the process comprises the following steps: the isolating film in the step (1) is one of a PE isolating film or a PET film;
the roll coating thickness of the foaming saw mud mortar in the step (2) is 4-8mm;
coating a Teflon anti-sticking coating on the surface of the counter roller in the step (4), and shaping the thickness by utilizing the gap between the two counter rollers;
the thickness in step (4) ranges from 4 to 8mm.
4. The process for preparing a light-weight large plate by using saw mud according to claim 2, wherein the process comprises the following steps: in the step (5), the drying temperature is 70-90 ℃, the humidity is 70-85%, and the time is 100-150min;
and (5) performing post-treatment, namely cutting by adopting a trimming cutting machine, stacking and packaging to prepare the light large plate.
5. The process for preparing a light-weight large plate by using saw mud according to claim 1, wherein the process comprises the following steps:
the emulsion in the foaming saw mud mortar is one or a mixture of a plurality of pure acrylic emulsion, styrene acrylic emulsion or silicone acrylic emulsion;
the white cement in the foaming saw mud mortar is 42.5 white cement;
the foaming agent in the foaming saw mud mortar is one of azodicarbonamide or diisopropyl azodicarbonate;
the foamed saw mud mortar accelerator is one of sodium aluminate, calcium fluoaluminate, calcium chloride, sodium chloride or sodium silicate;
the cellulose in the foaming saw mud mortar is one or a mixture of more of hydroxymethyl cellulose, hydroxyethyl cellulose or hydroxypropyl methyl cellulose.
6. The process for preparing a light-weight large plate by using saw mud according to claim 1, wherein the process comprises the following steps: the preparation method of the foaming saw mud mortar comprises the following steps:
(1) Adding the emulsion and water into a paint dispersing agent drawing cylinder to stir, controlling the stirring rotation speed to be 1100-1200r/min, and then adding cellulose to disperse for 30-60min;
(2) Adding foaming agent and short fiber, dispersing for 3-6min, and controlling the rotation speed at 1100-1200r/min;
(3) Adding white cement, accelerator and alkali inhibitor, dispersing for 10-15min, and controlling the rotating speed at 1000-1100r/min;
(4) Finally adding the saw mud to disperse for 10-20min, and controlling the rotating speed to be 600-700r/min to prepare the saw mud foaming mortar.
7. The process for preparing a light-weight large plate by using saw mud according to claim 1, wherein the process comprises the following steps: the emulsion in the dipping slurry is one or a mixture of a plurality of pure acrylic emulsion, styrene acrylic emulsion or silicone acrylic emulsion;
the white cement in the impregnating slurry is 42.5 white cement;
the dispersing agent in the impregnating slurry is one or a mixture of more of ammonium polymethacrylate, methylcellulose, ammonium citrate, polyethylene glycol or triethanolamine;
the defoaming agent in the dipping slurry is one or more of mineral oil defoaming agents, organic silicon resin defoaming agents or organic polar compound defoaming agents;
the retarder in the dipping slurry is one of sodium silicate, sodium carbonate or sodium tripolyphosphate;
the cellulose in the impregnation slurry is one or a mixture of two of hydroxyethyl cellulose and hydroxypropyl methyl cellulose;
the toner in the impregnating slurry is one or a mixture of more of ferric oxide, titanium dioxide, chromium oxide, ferrous ferricyanide or barium manganate toner.
8. The process for preparing a light-weight large plate by using saw mud according to claim 1, wherein the process comprises the following steps: the preparation method of the impregnating slurry comprises the following steps:
(1) Firstly, adding the emulsion and water into a paint dispersing agent drawing cylinder to stir, controlling the stirring rotation speed to be 1000-1200-r/min, and stirring for 30-60min;
(2) Then adding toner, cellulose, dispersing agent, defoaming agent and retarder, dispersing for 10-30min, and controlling the stirring rotation speed to 1000-1500r/min;
(3) Finally adding white cement to disperse for 10-30min, and controlling the stirring rotation speed to be 1000-1500r/min to prepare the dipping slurry.
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Publication number Priority date Publication date Assignee Title
CN1364968A (en) * 2002-02-08 2002-08-21 龚卓夫 Composite wall plate with waste textile fibre reinforced concrete side surface and its producing method
CN102248575A (en) * 2011-02-28 2011-11-23 唐山北极熊建材有限公司 Process for manufacturing ultra-light cement-based thermal insulation waterproof board by cast-in-place method
CN105002991A (en) * 2015-06-18 2015-10-28 中国建筑材料科学研究总院 Novel fiber reinforced composite heat insulation plate and preparing method of novel fiber reinforced composite heat insulation plate
CN207332003U (en) * 2017-08-25 2018-05-08 重庆思贝肯节能技术开发有限公司 Fiber forced foamed cement heat preserving plate
CN113248205A (en) * 2021-05-26 2021-08-13 武汉来道建材科技有限公司 Large-mixing-amount solid waste non-steamed lightweight concrete wallboard and preparation method thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1364968A (en) * 2002-02-08 2002-08-21 龚卓夫 Composite wall plate with waste textile fibre reinforced concrete side surface and its producing method
CN102248575A (en) * 2011-02-28 2011-11-23 唐山北极熊建材有限公司 Process for manufacturing ultra-light cement-based thermal insulation waterproof board by cast-in-place method
CN105002991A (en) * 2015-06-18 2015-10-28 中国建筑材料科学研究总院 Novel fiber reinforced composite heat insulation plate and preparing method of novel fiber reinforced composite heat insulation plate
CN207332003U (en) * 2017-08-25 2018-05-08 重庆思贝肯节能技术开发有限公司 Fiber forced foamed cement heat preserving plate
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