CN111572112A - Straw wood-plastic composite board and preparation method, curing production equipment and application thereof - Google Patents
Straw wood-plastic composite board and preparation method, curing production equipment and application thereof Download PDFInfo
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- CN111572112A CN111572112A CN202010494422.4A CN202010494422A CN111572112A CN 111572112 A CN111572112 A CN 111572112A CN 202010494422 A CN202010494422 A CN 202010494422A CN 111572112 A CN111572112 A CN 111572112A
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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
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
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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
- B32B13/00—Layered products comprising a a layer of water-setting substance, e.g. concrete, plaster, asbestos cement, or like builders' material
- B32B13/04—Layered products comprising a a layer of water-setting substance, e.g. concrete, plaster, asbestos cement, or like builders' material comprising such water setting substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B13/12—Layered products comprising a a layer of water-setting substance, e.g. concrete, plaster, asbestos cement, or like builders' material comprising such water setting substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
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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
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
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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
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
- B32B27/20—Layered products comprising a layer of synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
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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
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
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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
- B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
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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
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/0046—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by constructional aspects of the apparatus
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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
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
- B32B37/1284—Application of adhesive
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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
- B32B38/16—Drying; Softening; Cleaning
- B32B38/162—Cleaning
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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
- B32B38/16—Drying; Softening; Cleaning
- B32B38/164—Drying
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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
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- 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
- E04F13/0866—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 composed of several layers, e.g. sandwich panels or layered panels
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F15/00—Flooring
- E04F15/02—Flooring or floor layers composed of a number of similar elements
- E04F15/10—Flooring or floor layers composed of a number of similar elements of other materials, e.g. fibrous or chipped materials, organic plastics, magnesite tiles, hardboard, or with a top layer of other materials
- E04F15/107—Flooring or floor layers composed of a number of similar elements of other materials, e.g. fibrous or chipped materials, organic plastics, magnesite tiles, hardboard, or with a top layer of other materials composed of several layers, e.g. sandwich panels
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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
- B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
- B32B2260/02—Composition of the impregnated, bonded or embedded layer
- B32B2260/025—Particulate layer
-
- 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
- B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
- B32B2260/04—Impregnation, embedding, or binder material
- B32B2260/046—Synthetic resin
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- Architecture (AREA)
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- Ceramic Engineering (AREA)
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Abstract
The invention provides a straw wood-plastic composite board, which relates to the technical field of building materials and consists of a base layer, a middle bonding layer and a surface layer in a three-layer structure; the base layer is a cured concrete slab, and the components in parts by weight are as follows: 25-30 parts of cement, 80-85 parts of sand, 95-100 parts of stones, 90-120 parts of mineral powder, 5-10 parts of a water reducing agent and 110-120 parts of water; the middle bonding layer is structural adhesive and is coated between the base layer and the surface layer; the surface layer is a straw wood-plastic composite board, and the straw wood-plastic composite board comprises the following components in parts by weight: 20-25 parts of straw powder, 15-25 parts of log composite powder, 0.5-2 parts of natural resin, 60-70 parts of high-density polyethylene, 0.5-2 parts of nano zinc oxide powder and 1-2 parts of plasticizer. The plate with the concrete as the base layer and the wood composite layer as the surface layer has real wood texture, is not easy to deform as a whole, saves raw wood, and is suitable for batch production. Meanwhile, the invention also provides a preparation method, curing production equipment and application of the straw wood-plastic composite board.
Description
Technical Field
The invention relates to the technical field of building materials, in particular to a straw wood-plastic composite board and a preparation method, curing production equipment and application thereof.
Background
Straw is a generic term for the stem and leaf (ear) part of a mature crop, usually referring to the remainder of wheat, rice, corn, potatoes, oilseed rape, cotton, sugar cane and other crops after harvesting the seeds. More than half of the products of crop photosynthesis exist in the straws, and the straws are rich in nitrogen, phosphorus, potassium, calcium, magnesium, organic matters and the like, and are a multipurpose renewable biological resource.
In the existing decoration process, with the improvement of living standard of people, the floor tiles are generally paved in living rooms and are roughly divided into three types, namely, the wood log board tiles which are really finished by whole logs have the advantages of clear textures and good quality, but have the defects of large amount of raw wood, high cost and incapability of meeting the development requirements of energy conservation and emission reduction at present, the solid wood plywood tiles which are pressed and formed by wood powder and various adhesives have the greatest defects of warping deformation when meeting water, low stability and the like, the artificial wood-like board tiles are manufactured by common building materials into brick shapes, and then the surface layer is coated with wood-like paint and the like, so that the wood-plastic composite board is prepared by fully utilizing a large amount of straw resources with low price and rich resources after the floor tiles are used for a long time and paint is removed, the original luster is lost, the wood-like reality sense or high-grade sense is not reflected, therefore, the wood-plastic composite board is prepared by fully utilizing a large amount of straw resources with low price and, thereby providing a new method and idea.
Disclosure of Invention
In view of the above, the present invention provides a straw wood-plastic composite board, which uses concrete as a base layer and a wood composite layer as a surface layer, so that the surface layer presents real wood texture and is not easy to deform, and the raw wood is saved, so that the straw wood-plastic composite board is suitable for mass production.
In order to achieve the above objects, in a first aspect, the present invention provides a straw wood-plastic composite board, which is composed of a base layer, a middle bonding layer and a surface layer, which are bonded by pressing;
the base layer is a cured concrete plate, the base layer is formed by uniformly mixing the following components in parts by weight and curing the mixture after the mixture is molded by a mold, and the base layer comprises the following components in parts by weight: 25-30 parts of cement, 80-85 parts of sand, 95-100 parts of stones, 90-120 parts of mineral powder, 5-10 parts of a water reducing agent and 110-120 parts of water;
the middle bonding layer is structural adhesive and is coated between the base layer and the surface layer to play a bonding role;
the surface layer is a straw wood-plastic composite board, the following components are uniformly mixed and then rolled to form a wood thin plate, and the components are in parts by weight: 20-25 parts of straw powder, 15-25 parts of log composite powder, 0.5-2 parts of natural resin, 60-70 parts of high-density polyethylene, 0.5-2 parts of nano zinc oxide powder and 1-2 parts of plasticizer.
Furthermore, the adhesive consists of a three-layer structure of a base layer, a middle adhesive layer and a surface layer which are bonded by pressing;
the base layer is a cured concrete plate, the base layer is formed by uniformly mixing the following components in parts by weight and curing the mixture after the mixture is molded by a mold, and the base layer comprises the following components in parts by weight: 28 parts of cement, 82 parts of sand, 98 parts of stones, 110 parts of mineral powder, 8 parts of a water reducing agent and 115 parts of water;
the middle bonding layer is structural adhesive and is coated between the base layer and the surface layer to play a bonding role;
the surface layer is a straw wood-plastic composite board, the following components are uniformly mixed and then rolled to form a wood thin plate, and the components are in parts by weight: 22 parts of straw powder, 20 parts of log composite powder, 1.5 parts of natural resin, 65 parts of high-density polyethylene, 1.5 parts of nano zinc oxide powder and 1.5 parts of plasticizer.
Further, the cement is 42.5.
Further, the mineral powder is slag powder.
Further, the water reducing agent is a polycarboxylic acid high-performance water reducing agent, the solid content of the water reducing agent is not lower than 20%, and the water reducing rate is not lower than 25%.
Furthermore, the structural adhesive can be BD811 high-strength structural adhesive produced by Xiangfan union base adhesive factory, and A, B two components are uniformly mixed according to the mass ratio of A to B being 4:1 or the volume ratio of 3:1 for use.
Furthermore, the particle size of the sand is less than 2mm, and the particle size of the stones is 4-15 mm.
Furthermore, the straws are one or more of wheat, rice and corn straws, and are cleaned, dried and then crushed into straw powder, wherein 30-40% of the straws with the granularity of 0.3-0.5mm and 60-70% of the straws with the granularity of less than 0.3mm are contained in the straw powder.
Further, the raw wood composite powder comprises the following components in percentage by weight: 60-70% of high-density polyethylene and 30-40% of log powder are proportioned, and the log composite powder with the grain diameter of 0.1-0.3 mm is prepared after mixing, crushing, fine grinding and screening; the raw wood powder is prepared from one or more of Chinese tamarisk, birch, walnut, locust, crabapple, beech, cherry, longan and camphor wood, and is prepared by pulverizing leftover materials, wood shavings, sawdust, etc., and oven drying.
In a second aspect, the invention also provides a preparation method of the straw wood-plastic composite board, which comprises the following steps:
s1, forming a base layer: the base layer is a cured concrete plate, and the cured concrete plate is formed by uniformly mixing the following components in parts by weight and molding the mixture by a mold, wherein the components in parts by weight are as follows: 25-30 parts of cement, 80-85 parts of sand, 95-100 parts of stones, 90-120 parts of mineral powder, 5-10 parts of a water reducing agent and 110-120 parts of water;
s2, preparing an intermediate bonding layer: the middle bonding layer is structural adhesive, and A, B two components of the structural adhesive are uniformly mixed according to the mass ratio of A to B being 4 to 1 or the volume ratio of 3 to 1 for later use;
s3, forming a surface layer: the straw wood-plastic composite board is characterized in that the surface layer is a straw wood-plastic composite board, the following components are uniformly mixed and then rolled to form a wood thin board, and the components are mixed according to the weight ratio: 20-25 parts of straw powder, 15-25 parts of log composite powder, 0.5-2 parts of natural resin, 60-70 parts of high-density polyethylene, 0.5-2 parts of nano zinc oxide powder and 1-2 parts of plasticizer; performing calendaring forming to prepare a straw wood-plastic composite board with the thickness of 0.8-2 mm, wherein the calendaring forming temperature is 220-280 ℃, the forming pressure is 400-500 MPa, the heat preservation and pressure maintaining time is 15-30 min, and the cooling medium is liquid nitrogen;
s4, bonding and pressing the plates: cleaning bonding and pressing surfaces of the concrete slab and the straw wood-plastic composite board respectively, preheating the bonding and pressing surfaces by steam for 30-50 ℃, uniformly coating the structural adhesive in the S2 on a bonding surface of the concrete slab and the straw wood-plastic composite board, and bonding and curing the concrete slab and the straw wood-plastic composite board in a micro-pressure state to obtain the straw wood-plastic composite board.
Furthermore, the straw is one or more of wheat, rice and corn straws, and is cleaned, dried and then crushed into straw powder, wherein the straw powder comprises 30-40% of straw with the granularity of 0.3-0.5mm and 60-70% of straw with the granularity of less than 0.3 mm.
Further, the raw wood composite powder comprises the following components in percentage by weight: 60-70% of high-density polyethylene and 30-40% of log powder are proportioned, and the log composite powder with the grain diameter of 0.1-0.3 mm is prepared after mixing, crushing, fine grinding and screening; the raw wood powder is prepared from one or more of Chinese tamarisk, birch, walnut, locust, crabapple, beech, cherry, longan and camphor wood, and is prepared by pulverizing leftover materials, wood shavings, sawdust, etc., and oven drying.
Further, in step S4, the curing process is: curing for 24 hours at the temperature of 20-25 ℃; or curing for 2 hours in the temperature environment of 20-25 ℃, then heating to the temperature environment of 70-80 ℃, and putting into use after curing for 2 hours.
In a third aspect, the invention provides a solidification production device for straw wood-plastic composite boards, which comprises: the straw wood-plastic composite board conveying device comprises a conveying device for conveying a concrete board transversely, a transferring device for moving the straw wood-plastic composite board to the position above the concrete board, a steam emitting device for performing steam preheating treatment between the joint surfaces of the concrete board and the straw wood-plastic composite board, and a gluing device for uniformly gluing the joint surfaces of the concrete board and the straw wood-plastic composite board;
the transfer device comprises: the straw wood-plastic composite board comprises a suspension frame rotating around a vertical shaft, a rotary driving mechanism for driving the suspension frame to rotate, a mounting plate connected with the suspension frame through a lifting mechanism, and a sucker positioned at the bottom end of the mounting plate and used for sucking the straw wood-plastic composite board;
the vapor-dispensing device comprises: the straw wood-plastic composite board is characterized by comprising a hollow shell, wherein air outlet holes are formed in the shell and respectively face the concrete board and the straw wood-plastic composite board, and an air inlet pipe is communicated with the interior of the shell and is used for introducing steam into the shell;
the rubber coating device includes: the device comprises a mounting frame, a roller brush rotatably mounted on the mounting frame around a horizontal shaft, a driving motor for driving the roller brush to rotate, and glue spraying nozzles which are uniformly distributed on the mounting frame along the axis of the roller brush and have nozzles facing the brush surface of the roller brush; the other end of the glue spraying nozzle is connected with a glue storage tank pipeline through a pump;
the steam emitting device is arranged at one end of a cross beam which can rotate around a vertical shaft, and the other end of the cross beam is provided with the gluing device; and the cross beam is also provided with a rotary driving mechanism for driving the cross beam to rotate.
Further, the transfer device includes: the conveyer belt, a plurality of erects in the frame and with the conveyer belt transmission be connected the transfer roller to and be used for driving transfer roller pivoted motor.
Furthermore, the lifting mechanism comprises a vertically arranged telescopic rod and a guide assembly, one end of the telescopic rod is connected with the suspension, the other end of the telescopic rod is connected with the mounting plate, and the guide assembly is mounted on the suspension and the mounting plate.
Further, the rotary drive mechanism includes: the vertical shaft rotating around the vertical shaft is used for driving the vertical shaft rotating speed reducer, and the lower end of the vertical shaft is in transmission connection with the output end of the speed reducer.
In a fourth aspect, the invention provides an application of the straw wood-plastic composite board, and the straw wood-plastic composite board or the straw wood-plastic composite board obtained by the preparation method is applied to paving floor tiles and wall tiles.
Compared with the prior art, the invention has the beneficial effects that: the plate with the concrete as the base layer and the wood composite layer as the surface layer has the advantages that the surface layer presents real wood texture and is not easy to deform, the raw wood is saved, and the plate is suitable for batch production.
The solidification production equipment provided by the invention firstly cleans a bonding surface between a concrete slab and a wood-plastic composite board through steam, and on the other hand preheats the bonding surface and keeps a trace wetting state of the bonding surface, so that the bonding of the interface of the structural adhesive in the next step is ensured under a better temperature, wetting degree and micro-pressure state, the problem of weak bonding force of the interface of the concrete slab and the wood-plastic composite board is fundamentally solved, the cracking problem of the straw wood-plastic composite board in the later use process is effectively prevented, the production efficiency of the equipment is high, and the equipment is suitable for the continuous production requirement in large batch.
Drawings
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
FIG. 1 is a schematic diagram of a front view structure (a) and a schematic diagram of a side view structure (b) of a plate according to an embodiment of the present invention;
FIG. 2 is a schematic front view of a curing production apparatus according to an embodiment of the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 2;
FIG. 4 is a schematic top view of the vapor-dispensing device of FIG. 2 in relation to the glue applicator of the present invention;
FIG. 5 is a schematic side view of the structure of FIG. 2 according to the present invention.
In the figure: 1. a conveying device; 11. a conveyor belt; 12. a conveying roller; 13. a motor; 2. a transfer device; 21. a suspension; 22. a lifting mechanism; 221. a telescopic rod; 222. a guide assembly; 23. mounting a plate; 24. a suction cup; 3. a vapor dispensing device; 31. a housing; 32. an air outlet; 33. an air inlet pipe; 4. a gluing device; 41. a mounting frame; 42. a roller brush; 43. a drive motor; 44. a glue spraying nozzle; 5. a cross beam; 6. a column; 7. and a speed reducer.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, fig. 1 is a schematic diagram of a front view structure (a) and a schematic diagram of a side view structure (b) of a plate according to an embodiment of the present invention; FIG. 2 is a schematic front view of a curing production apparatus according to an embodiment of the present invention; FIG. 3 is an enlarged view of a portion of FIG. 2; FIG. 4 is a schematic top view of the vapor-dispensing device of FIG. 2 in relation to the glue applicator of the present invention; FIG. 5 is a schematic side view of the structure of FIG. 2 according to the present invention.
The first embodiment is as follows:
the embodiment of the invention provides a straw wood-plastic composite board which is composed of a base layer, a middle bonding layer and a surface layer which are bonded through pressing;
the base layer is a cured concrete plate, the base layer is formed by uniformly mixing the following components in parts by weight and curing the mixture after the mixture is molded by a mold, and the base layer comprises the following components in parts by weight: 25 parts of cement, 80 parts of sand, 95 parts of stones, 90 parts of mineral powder, 5 parts of a water reducing agent and 110 parts of water;
the middle bonding layer is structural adhesive and is coated between the base layer and the surface layer to play a bonding role;
the surface layer is a straw wood-plastic composite board, the following components are uniformly mixed and then rolled to form a wood thin plate, and the components are in parts by weight: 20 parts of straw powder, 15 parts of log composite powder, 0.5 part of natural resin, 60 parts of high-density polyethylene, 0.5 part of nano zinc oxide powder and 1 part of plasticizer.
Example two:
the embodiment of the invention provides a straw wood-plastic composite board which is composed of a base layer, a middle bonding layer and a surface layer which are bonded through pressing;
the base layer is a cured concrete plate, the base layer is formed by uniformly mixing the following components in parts by weight and curing the mixture after the mixture is molded by a mold, and the base layer comprises the following components in parts by weight: 30 parts of cement, 85 parts of sand, 100 parts of stones, 120 parts of mineral powder, 10 parts of water reducing agent and 120 parts of water;
the middle bonding layer is structural adhesive and is coated between the base layer and the surface layer to play a bonding role;
the surface layer is a straw wood-plastic composite board, the following components are uniformly mixed and then rolled to form a wood thin plate, and the components are in parts by weight: 25 parts of straw powder, 25 parts of log composite powder, 2 parts of natural resin, 70 parts of high-density polyethylene, 2 parts of nano zinc oxide powder and 2 parts of plasticizer.
Example three:
the embodiment of the invention provides a straw wood-plastic composite board which is composed of a base layer, a middle bonding layer and a surface layer which are bonded through pressing;
the base layer is a cured concrete plate, the base layer is formed by uniformly mixing the following components in parts by weight and curing the mixture after the mixture is molded by a mold, and the base layer comprises the following components in parts by weight: 28 parts of cement, 82 parts of sand, 98 parts of stones, 110 parts of mineral powder, 8 parts of a water reducing agent and 115 parts of water;
the middle bonding layer is structural adhesive and is coated between the base layer and the surface layer to play a bonding role;
the surface layer is a straw wood-plastic composite board, the following components are uniformly mixed and then rolled to form a wood thin plate, and the components are in parts by weight: 22 parts of straw powder, 20 parts of log composite powder, 1.5 parts of natural resin, 65 parts of high-density polyethylene, 1.5 parts of nano zinc oxide powder and 1.5 parts of plasticizer.
In the first, second and third embodiments, the cement is marked with 42.5. The mineral powder is slag powder. The water reducing agent is a polycarboxylic acid high-performance water reducing agent, the solid content of the water reducing agent is not lower than 20%, and the water reducing rate is not lower than 25%. The structural adhesive can be BD811 high-strength structural adhesive produced by Xiangfan linking adhesive factory, and A, B is uniformly mixed according to the mass ratio of A to B being 4 to 1 or the volume ratio of 3 to 1 for use. The particle size of the sand is less than 2mm, and the particle size of the stone is 4-15 mm. The straw is one or more of wheat, rice and corn straws, is washed, dried and then crushed into straw powder, and 30-40% of the straw powder with the granularity of 0.3-0.5mm and 60-70% of the straw powder with the granularity of less than 0.3mm are contained in the straw powder. The raw wood composite powder comprises the following components in percentage by weight: 60-70% of high-density polyethylene and 30-40% of log powder are proportioned, and the log composite powder with the grain diameter of 0.1-0.3 mm is prepared after mixing, crushing, fine grinding and screening; the raw wood powder is prepared from one or more of Chinese tamarisk, birch, walnut, locust, crabapple, beech, cherry, longan and camphor wood, and is prepared by pulverizing leftover materials, wood shavings, sawdust, etc., and oven drying.
Example four:
in a second aspect, the invention also provides a preparation method of the straw wood-plastic composite board, which comprises the following steps:
s1, forming a base layer: the base layer is a cured concrete plate, and the cured concrete plate is formed by uniformly mixing the following components in parts by weight and molding the mixture by a mold, wherein the components in parts by weight are as follows: 25-30 parts of cement, 80-85 parts of sand, 95-100 parts of stones, 90-120 parts of mineral powder, 5-10 parts of a water reducing agent and 110-120 parts of water;
s2, preparing an intermediate bonding layer: the middle bonding layer is structural adhesive, and A, B two components of the structural adhesive are uniformly mixed according to the mass ratio of A to B being 4 to 1 or the volume ratio of 3 to 1 for later use;
s3, forming a surface layer: the straw wood-plastic composite board is characterized in that the surface layer is a straw wood-plastic composite board, the following components are uniformly mixed and then rolled to form a wood thin board, and the components are mixed according to the weight ratio: 20-25 parts of straw powder, 15-25 parts of log composite powder, 0.5-2 parts of natural resin, 60-70 parts of high-density polyethylene, 0.5-2 parts of nano zinc oxide powder and 1-2 parts of plasticizer; performing calendaring forming to prepare a straw wood-plastic composite board with the thickness of 0.8-2 mm, wherein the calendaring forming temperature is 220-280 ℃, the forming pressure is 400-500 MPa, the heat preservation and pressure maintaining time is 15-30 min, and the cooling medium is liquid nitrogen;
s4, bonding and pressing the plates: cleaning bonding and pressing surfaces of the concrete slab and the straw wood-plastic composite board respectively, preheating the bonding and pressing surfaces by steam for 30-50 ℃, uniformly coating the structural adhesive in the S2 on a bonding surface of the concrete slab and the straw wood-plastic composite board, and bonding and curing the concrete slab and the straw wood-plastic composite board in a micro-pressure state to obtain the straw wood-plastic composite board.
Preferably, the straw is one or more of wheat, rice and corn straws, and is cleaned, dried and then crushed into straw powder, wherein the straw powder comprises 30-40% of straw with the particle size of 0.3-0.5mm and 60-70% of straw with the particle size of less than 0.3 mm.
Preferably, the raw wood composite powder comprises the following components in percentage by weight: 60-70% of high-density polyethylene and 30-40% of log powder are proportioned, and the log composite powder with the grain diameter of 0.1-0.3 mm is prepared after mixing, crushing, fine grinding and screening; the raw wood powder is prepared from one or more of Chinese tamarisk, birch, walnut, locust, crabapple, beech, cherry, longan and camphor wood, and is prepared by pulverizing leftover materials, wood shavings, sawdust, etc., and oven drying.
Preferably, in step S4, the curing process is: curing for 24 hours at the temperature of 20-25 ℃; or curing for 2 hours in the temperature environment of 20-25 ℃, then heating to the temperature environment of 70-80 ℃, and putting into use after curing for 2 hours.
Example five:
in a third aspect, the invention provides a solidification production device for straw wood-plastic composite boards, which comprises: the straw wood-plastic composite board conveying device comprises a conveying device 1 for conveying a concrete board transversely, a transferring device 2 for moving a straw wood-plastic composite board to the position above the concrete board, a steam emitting device 3 for performing steam preheating treatment between the joint surfaces of the concrete board and the straw wood-plastic composite board, and a gluing device 4 for uniformly gluing the joint surfaces of the concrete board and the straw wood-plastic composite board;
the transfer device 2 includes: the straw wood-plastic composite board comprises a suspension 21 rotating around a vertical shaft, a rotary driving mechanism for driving the suspension 21 to rotate, a mounting plate 23 connected with the suspension 21 through a lifting mechanism 22, and a sucker 24 positioned at the bottom end of the mounting plate 23 and used for sucking the straw wood-plastic composite board; conveyer 1 side still is equipped with the feed bin that is used for splendid attire straw wood-plastic composite board, and the transfer device 2 of being convenient for rotates the straw wood-plastic composite board wherein to the concrete slab directly over conveyer 1.
The vapor-dispensing device 3 comprises: the straw wood-plastic composite board comprises a hollow shell 31, air outlet holes 32 formed in the shell 31 and facing the concrete board and the straw wood-plastic composite board respectively, and an air inlet pipe 33 communicated with the interior of the shell 31 and used for introducing steam into the shell;
the gluing device 4 comprises: the device comprises a mounting frame 41, a roller brush 42 rotatably mounted on the mounting frame around a horizontal shaft, a driving motor 43 for driving the roller brush 42 to rotate, and glue spraying nozzles 44 which are uniformly distributed on the mounting frame 41 along the axis of the roller brush 42 and have nozzles facing the brush surface of the roller brush 42; the other end of the glue spraying nozzle 44 is connected with a glue storage tank pipeline through a pump;
the steam emitting device 3 is arranged at one end of a beam 5 which can rotate around a vertical shaft, and the other end of the beam 5 is provided with the gluing device 4; and the cross beam 5 is also provided with a rotary driving mechanism for driving the cross beam to rotate.
Specifically, the conveying device 1 conveys the concrete plates to a working position, the conveying is suspended, the transfer device 2 sucks up the straw wood-plastic composite plates through the suction cups 24 and rotates the straw wood-plastic composite plates to a position right above the working position, and the lifting mechanism 22 descends to a proper position; the beam 5 rotates, so that the steam emission device 3 extends to a position between a concrete slab and a wood-plastic composite board on a working position, steam preheats the joint surface of the concrete slab and the wood-plastic composite board through the air inlet pipe 33, the inner part of the shell 31 and the air outlet hole 32, and the temperature is about 30 ℃; then, the beam 5 rotates, the gluing device 4 starts to work at the moment, the base glue in the two glue storage tanks is mixed with the curing agent and then is pressed to the glue spraying nozzle 44 through a pump so as to be sprayed to the outer circumference of the roller brush 42, meanwhile, the driving motor 43 drives the roller brush 42 to rotate, and when the roller brush 42 passes through the space between the concrete slab and the wood-plastic composite board, a structural glue layer is uniformly coated on the bonding surfaces of the concrete slab and the wood-plastic composite board; finally, the lifting mechanism 22 continues to descend to press the wood-plastic composite board onto the concrete board, and after a period of time, the straw wood-plastic composite board is obtained through the preparation method, the rear suction cup 24 is loosened, the conveying device 1 is started to convey the wood-plastic composite board, and the next board is pressed.
Preferably, the transfer device 1 comprises: conveyer belt 11, a plurality of conveying roller 12 that erect in the frame and be connected with conveyer belt 11 transmission to and be used for driving the pivoted motor 13 of conveying roller 12.
Preferably, the lifting mechanism 22 includes a vertically disposed telescopic rod 221 and a guiding assembly 222, the telescopic rod 221 may be an electric push rod, a hydraulic cylinder, a pneumatic cylinder, or the like, one end of the telescopic rod is connected to the suspension 21, the other end of the telescopic rod is connected to the mounting plate 23, and the suspension 21 and the mounting plate 23 mount the guiding assembly 222.
Preferably, the rotary drive mechanism includes: the vertical shaft rotating vertical column 6 is used for driving a speed reducer 7 for driving the vertical shaft 6 to rotate, and the lower end of the vertical shaft 6 is in transmission connection with the output end of the speed reducer 7. The bottom of the speed reducer 7 is fixed on the foundation, and the speed reducer 7 drives the upright post 6 to intermittently rotate according to 180 degrees in the horizontal plane.
Example six:
in a fourth aspect, the invention provides an application of the straw wood-plastic composite board, and the straw wood-plastic composite board or the straw wood-plastic composite board obtained by the preparation method is applied to paving floor tiles and wall tiles.
Specifically, the board is cut into a proper size, and the wooden board surface can be ground and polished and laid on the ground or the wall surface.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
Claims (10)
1. A straw wood-plastic composite board is characterized by consisting of a base layer, a middle bonding layer and a surface layer which are bonded through pressing;
the base layer is a cured concrete plate, the base layer is formed by uniformly mixing the following components in parts by weight and curing the mixture after the mixture is molded by a mold, and the base layer comprises the following components in parts by weight: 25-30 parts of cement, 80-85 parts of sand, 95-100 parts of stones, 90-120 parts of mineral powder, 5-10 parts of a water reducing agent and 110-120 parts of water;
the middle bonding layer is structural adhesive and is coated between the base layer and the surface layer to play a bonding role;
the surface layer is a straw wood-plastic composite board, the following components are uniformly mixed and then rolled to form a wood thin plate, and the components are in parts by weight: 20-25 parts of straw powder, 15-25 parts of log composite powder, 0.5-2 parts of natural resin, 60-70 parts of high-density polyethylene, 0.5-2 parts of nano zinc oxide powder and 1-2 parts of plasticizer.
2. The straw wood-plastic composite board as claimed in claim 1, which is composed of a three-layer structure of a base layer, a middle bonding layer and a surface layer bonded by pressing;
the base layer is a cured concrete plate, the base layer is formed by uniformly mixing the following components in parts by weight and curing the mixture after the mixture is molded by a mold, and the base layer comprises the following components in parts by weight: 28 parts of cement, 82 parts of sand, 98 parts of stones, 110 parts of mineral powder, 8 parts of a water reducing agent and 115 parts of water;
the middle bonding layer is structural adhesive and is coated between the base layer and the surface layer to play a bonding role;
the surface layer is a straw wood-plastic composite board, the following components are uniformly mixed and then rolled to form a wood thin plate, and the components are in parts by weight: 22 parts of straw powder, 20 parts of log composite powder, 1.5 parts of natural resin, 65 parts of high-density polyethylene, 1.5 parts of nano zinc oxide powder and 1.5 parts of plasticizer.
3. The straw wood-plastic composite board according to claim 1, wherein the straw is one or more of wheat, rice and corn straws, is washed, dried in the sun and then crushed into straw powder, and 30-40% of the straw powder with the particle size of 0.3-0.5mm and 60-70% of the straw powder with the particle size of less than 0.3mm are contained in the straw powder.
4. The straw wood-plastic composite board as claimed in claim 1, wherein the raw wood composite powder comprises, by weight: 60-70% of high-density polyethylene and 30-40% of log powder are proportioned, and the log composite powder with the grain diameter of 0.1-0.3 mm is prepared after mixing, crushing, fine grinding and screening; the raw wood powder is prepared from one or more of Chinese tamarisk, birch, walnut, locust, crabapple, beech, cherry, longan and camphor wood, and is prepared by pulverizing leftover materials, wood shavings, sawdust, etc., and oven drying.
5. The preparation method of the straw wood-plastic composite board is characterized by comprising the following steps:
s1, forming a base layer: the base layer is a cured concrete plate, and the cured concrete plate is formed by uniformly mixing the following components in parts by weight and molding the mixture by a mold, wherein the components in parts by weight are as follows: 25-30 parts of cement, 80-85 parts of sand, 95-100 parts of stones, 90-120 parts of mineral powder, 5-10 parts of a water reducing agent and 110-120 parts of water;
s2, preparing an intermediate bonding layer: the middle bonding layer is structural adhesive, and A, B two components of the structural adhesive are uniformly mixed according to the actual required proportion for later use;
s3, forming a surface layer: the straw wood-plastic composite board is characterized in that the surface layer is a straw wood-plastic composite board, the following components are uniformly mixed and then rolled to form a wood thin board, and the components are mixed according to the weight ratio: 20-25 parts of straw powder, 15-25 parts of log composite powder, 0.5-2 parts of natural resin, 60-70 parts of high-density polyethylene, 0.5-2 parts of nano zinc oxide powder and 1-2 parts of plasticizer; performing calendaring forming to prepare a straw wood-plastic composite board with the thickness of 0.8-2 mm, wherein the calendaring forming temperature is 220-280 ℃, the forming pressure is 400-500 MPa, the heat preservation and pressure maintaining time is 15-30 min, and the cooling medium is liquid nitrogen;
s4, bonding and pressing the plates: cleaning bonding and pressing surfaces of the concrete slab and the straw wood-plastic composite board respectively, preheating the bonding and pressing surfaces by steam for 30-50 ℃, uniformly coating the structural adhesive in the S2 on a bonding surface of the concrete slab and the straw wood-plastic composite board, and bonding and curing the concrete slab and the straw wood-plastic composite board in a micro-pressure state to obtain the straw wood-plastic composite board.
6. The method according to claim 5, wherein in step S4, the curing process is: curing for 24 hours at the temperature of 20-25 ℃; or curing for 2 hours in the temperature environment of 20-25 ℃, then heating to the temperature environment of 70-80 ℃, and putting into use after curing for 2 hours.
7. The curing production equipment of the straw wood-plastic composite board according to any one of claims 1 to 4, characterized by comprising: the straw wood-plastic composite board conveying device comprises a conveying device (1) for transversely conveying a concrete board, a transferring device (2) for moving the straw wood-plastic composite board to the position above the concrete board, a steam emitting device (3) for performing steam preheating treatment on the joint surfaces of the concrete board and the straw wood-plastic composite board, and a gluing device (4) for uniformly gluing the joint surfaces of the concrete board and the straw wood-plastic composite board;
the transfer device (2) comprises: the straw wood-plastic composite board comprises a suspension (21) rotating around a vertical shaft, a rotary driving mechanism for driving the suspension (21) to rotate, a mounting plate (23) connected with the suspension (21) through a lifting mechanism (22), and a sucker (24) positioned at the bottom end of the mounting plate (23) and used for sucking the straw wood-plastic composite board;
said vapor-dispensing device (3) comprising: the straw wood-plastic composite board is characterized by comprising a hollow shell (31), wherein air outlet holes (32) formed in the shell (31) and facing the concrete board and the straw wood-plastic composite board respectively, and an air inlet pipe (33) communicated with the interior of the shell (31) and used for introducing steam into the shell;
the gluing device (4) comprises: the device comprises a mounting rack (41), a roller brush (42) rotatably mounted on the mounting rack around a horizontal shaft, a driving motor (43) for driving the roller brush (42) to rotate, and glue spraying nozzles (44) which are uniformly distributed on the mounting rack (41) along the axis of the roller brush (42) and have nozzles facing the brushing surface of the roller brush (42); the other end of the glue spraying nozzle (44) is connected with a glue storage tank pipeline through a pump;
the steam emitting device (3) is arranged at one end of a cross beam (5) which can rotate around a vertical shaft, and the other end of the cross beam (5) is provided with the gluing device (4); and the cross beam (5) is also provided with a rotary driving mechanism for driving the cross beam to rotate.
8. Curing production plant according to claim 1, characterized in that the lifting mechanism (22) comprises a vertically arranged telescopic rod (221), a guiding assembly (222), the telescopic rod (221) is connected with the suspension (21) at one end and the mounting plate (23) at the other end, and the suspension (21) and the mounting plate (23) mount the guiding assembly (222). The transfer device (1) comprises: conveyer belt (11), a plurality of conveying roller (12) of erectting in the frame and being connected with conveyer belt (11) transmission to and be used for driving conveying roller (12) pivoted motor (13).
9. The cure production apparatus of claim 1, wherein the rotary drive mechanism comprises: the vertical shaft rotating vertical column (6) is used for driving the vertical shaft (6) to rotate the speed reducer (7), and the lower end of the vertical shaft (6) is in transmission connection with the output end of the speed reducer (7).
10. The application of the straw wood-plastic composite board is characterized in that the straw wood-plastic composite board as claimed in any one of claims 1 to 4 or the straw wood-plastic composite board obtained by the preparation method as claimed in claims 5 to 6 is applied to paving floor tiles and wall tiles.
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| CN202010494422.4A CN111572112A (en) | 2020-06-03 | 2020-06-03 | Straw wood-plastic composite board and preparation method, curing production equipment and application thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113235805A (en) * | 2021-05-31 | 2021-08-10 | 重庆金彧新型环保建材有限公司 | Method for manufacturing prefabricated ribbon board |
| CN114163794A (en) * | 2021-12-06 | 2022-03-11 | 湖南登科材料科技有限公司 | Modified composite board based on rice straw and preparation equipment thereof |
| CN114536502A (en) * | 2022-02-22 | 2022-05-27 | 浙江钱隆新材料有限公司 | Preparation facilities of wood-plastic composite material coextrusion surface course |
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2020
- 2020-06-03 CN CN202010494422.4A patent/CN111572112A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113235805A (en) * | 2021-05-31 | 2021-08-10 | 重庆金彧新型环保建材有限公司 | Method for manufacturing prefabricated ribbon board |
| CN114163794A (en) * | 2021-12-06 | 2022-03-11 | 湖南登科材料科技有限公司 | Modified composite board based on rice straw and preparation equipment thereof |
| CN114536502A (en) * | 2022-02-22 | 2022-05-27 | 浙江钱隆新材料有限公司 | Preparation facilities of wood-plastic composite material coextrusion surface course |
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