CN110549454A - Straw composite board and manufacturing method thereof - Google Patents

Straw composite board and manufacturing method thereof Download PDF

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Publication number
CN110549454A
CN110549454A CN201910708285.7A CN201910708285A CN110549454A CN 110549454 A CN110549454 A CN 110549454A CN 201910708285 A CN201910708285 A CN 201910708285A CN 110549454 A CN110549454 A CN 110549454A
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CN
China
Prior art keywords
straw
parts
composite board
straws
board according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201910708285.7A
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Chinese (zh)
Inventor
李珂
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Individual
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Individual
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Priority to CN201910708285.7A priority Critical patent/CN110549454A/en
Publication of CN110549454A publication Critical patent/CN110549454A/en
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N1/00—Pretreatment of moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N1/00—Pretreatment of moulding material
    • B27N1/02—Mixing the material with binding agent
    • B27N1/0209—Methods, e.g. characterised by the composition of the agent
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
    • B27N3/002—Manufacture of substantially flat articles, e.g. boards, from particles or fibres characterised by the type of binder
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
    • B27N3/007—Manufacture of substantially flat articles, e.g. boards, from particles or fibres and at least partly composed of recycled material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
    • B27N3/04—Manufacture of substantially flat articles, e.g. boards, from particles or fibres from fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
    • B27N3/08—Moulding or pressing
    • B27N3/10—Moulding of mats
    • B27N3/12—Moulding of mats from fibres
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L97/00—Compositions of lignin-containing materials
    • C08L97/02—Lignocellulosic material, e.g. wood, straw or bagasse
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/16—Halogen-containing compounds
    • C08K2003/166—Magnesium halide, e.g. magnesium chloride
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/32—Phosphorus-containing compounds
    • C08K2003/321—Phosphates
    • C08K2003/322—Ammonium phosphate
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
    • C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Manufacturing & Machinery (AREA)
  • Forests & Forestry (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)

Abstract

The invention provides a straw composite board, which comprises 60-80 parts of corn straws, 10-30 parts of straw straws, 10-20 parts of mushroom bran, 10-20 parts of wood chips, 0.1-1 part of ammonium dihydrogen phosphate, 0.5-1 part of polyvinyl acetate, 1-3 parts of polyvinyl alcohol, 0.3-0.8 part of a waterproof agent, 1-6 parts of a flame retardant and 2-6 parts of an adhesive, and also discloses a manufacturing method of the straw composite board, which comprises the following steps: crushing raw materials, preparing a mixture, hot-pressing and polishing a finished product. The invention adopts corn stalks and rice straw stalks to replace wood, thereby greatly relieving the problem of shortage of wood raw materials.

Description

straw composite board and manufacturing method thereof
Technical Field
The invention relates to the field of composite board products, in particular to a straw composite board and a manufacturing method thereof.
Background
The composite board is a common building decoration material in daily life, is an artificial board which is made by taking wood as a raw material and processing the wood by artificial machinery, and has the types of boards, shaving boards, fiber boards, three-ply boards and the like. Because of the huge demand of the artificial board and the shortage of wood sources in China every year, the artificial board made by only relying on wood as a raw material is far from meeting the market demand.
Disclosure of Invention
In view of this, the invention provides a straw composite board and a manufacturing method thereof, in order to solve the technical problem that the shortage of raw materials of the existing wood composite board cannot meet the market demand.
The technical scheme of the invention is realized as follows:
A straw composite board comprises 60-80 parts of corn straws, 10-30 parts of straw straws, 10-20 parts of mushroom bran, 10-20 parts of wood chips, 0.1-1 part of ammonium dihydrogen phosphate, 0.5-1 part of polyvinyl acetate, 1-3 parts of polyvinyl alcohol, 0.3-0.8 part of a waterproof agent, 1-6 parts of a flame retardant and 2-6 parts of an adhesive.
Preferably, the waterproof agent is magnesium chloride.
Preferably, the flame retardant is polyvinyl acetate.
Preferably, the adhesive is polyvinyl alcohol.
preferably, the manufacturing method of the straw composite board comprises the following steps:
Step 1, crushing raw materials: crushing corn straws and rice straw straws, and screening mushroom bran and sawdust by a mesh screen for later use;
Step 2, preparing a mixture: adding corn straws, straw straws, mushroom bran and sawdust into a material mixer, uniformly stirring, adding ammonium dihydrogen phosphate, polyvinyl acetate, polyvinyl alcohol, a waterproof agent, a flame retardant and an adhesive, and uniformly stirring to form a straw mixture for later use;
Step 3, hot pressing: pouring the straw mixture obtained in the step 2 into a mould for hot pressing to prepare a rough blank plate;
Step 4, polishing a finished product: and (4) polishing and cutting the rough blank plate in the step (3) to obtain a finished product.
Preferably, the corn stalks and the rice straw stalks in the step 1 are crushed into fibers with the length of 3-5 cm.
Preferably, in the step 1, the mesh screen is a 5 or 6 mesh screen.
Preferably, in the step 2, when the corn stalks, the straw stalks, the mushroom bran and the wood chips are stirred in a stirrer after being added with water, the water content is controlled to be between 10 and 12 percent.
Preferably, in the step 3, the mold is subjected to a preheating treatment before hot pressing, and the preheating temperature is between 60 and 65 ℃.
Preferably, the hot pressing temperature is 130 ℃; the hot pressing pressure is 3 MPa; hot pressing time is 5 min; the compression ratio was 6: 1.
Has the advantages that:
According to the invention, the corn stalks and the straw stalks are used as the main body of the wood floor instead of wood, so that the production investment is greatly reduced, and the raw materials are sufficient; the strength and the quality of the product are improved through ammonium dihydrogen phosphate, polyvinyl acetate and polyvinyl alcohol, the adhesive is added to bond the wood board, the straw connection adhesion degree in the wood board is ensured, and the strength of the wood board is ensured.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. 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.
example 1
A straw composite board comprises 60 parts of corn straws, 10 parts of rice straw straws, 10 parts of mushroom bran, 10-20 parts of sawdust, 0.1 part of ammonium dihydrogen phosphate, 0.5 part of polyvinyl acetate, 1 part of polyvinyl alcohol, 0.3 part of magnesium chloride, 1 part of polyvinyl acetate and 2 parts of polyvinyl alcohol.
Example 2
A straw composite board comprises 80 parts of corn straws, 30 parts of rice straw straws, 20 parts of mushroom bran, 20 parts of sawdust, 1 part of ammonium dihydrogen phosphate, 1 part of polyvinyl acetate, 3 parts of polyvinyl alcohol, 0.8 part of magnesium chloride, 6 parts of polyvinyl acetate and 6 parts of polyvinyl alcohol.
Example 3
A straw composite board comprises 73 parts of corn straws, 18 parts of rice straw straws, 13 parts of mushroom bran, 16 parts of sawdust, 0.3 part of ammonium dihydrogen phosphate, 0.6 part of polyvinyl acetate, 2 parts of polyvinyl alcohol, 0.6 part of magnesium chloride, 2 parts of polyvinyl acetate and 4 parts of polyvinyl alcohol.
example 4
A straw composite board comprises 78 parts of corn straws, 13 parts of rice straw straws, 17 parts of mushroom bran, 11 parts of sawdust, 0.5 part of ammonium dihydrogen phosphate, 0.8 part of polyvinyl acetate, 1.5 parts of polyvinyl alcohol, 0.5 part of magnesium chloride, 3 parts of polyvinyl acetate and 4 parts of polyvinyl alcohol.
The invention also discloses a manufacturing method of the straw composite board, which comprises the following steps:
Step 1, crushing raw materials: crushing corn straws and rice straw straws, and screening mushroom bran and sawdust by a mesh screen for later use;
step 2, preparing a mixture: adding corn straws, straw straws, mushroom bran and sawdust into a material mixer, uniformly stirring, adding ammonium dihydrogen phosphate, polyvinyl acetate, polyvinyl alcohol, a waterproof agent, a flame retardant and an adhesive, and uniformly stirring to form a straw mixture for later use;
Step 3, hot pressing: pouring the straw mixture obtained in the step 2 into a mould for hot pressing to prepare a rough blank plate;
Step 4, polishing a finished product: and (4) polishing and cutting the rough blank plate in the step (3) to obtain a finished product.
preferably, the corn stalks and the rice straw stalks in the step 1 are crushed into fibers with the length of 3-5 cm.
Preferably, in the step 1, the mesh screen is a 5 or 6 mesh screen.
Preferably, in the step 2, when the corn stalks, the straw stalks, the mushroom bran and the wood chips are stirred in a stirrer after being added with water, the water content is controlled to be between 10 and 12 percent.
Preferably, in the step 3, the mold is subjected to a preheating treatment before hot pressing, and the preheating temperature is between 60 and 65 ℃.
Preferably, the hot pressing temperature is 130 ℃; the hot pressing pressure is 3 MPa; hot pressing time is 5 min; the compression ratio was 6: 1.
The composite boards produced in examples 1 to 4 were cut out into boards with dimensions of 100cm by 15cm as test boards and were ready for use, labeled as boards a, B and C.
And selecting a solid wood board and a wood compression board on the market Homogen group with the same size, cutting the board with the same size as the test board, and marking the board as a D board and an E board.
The A plate, the B plate, the C plate, the D plate and the E plate have the following test results according to the test of the nail-holding power, the static bending strength and the elastic strength:
a plate b board C plate d plate E plate
Power of holding nails 1000 1000 1000 1100 1100
Strength of elasticity 2500 2500 2500 2400 2600
Static bending strength 20 21 20 22 22
The experiments show that the compression board reaches the national standard, the quality of the compression board is close to that of a high-quality wood board, and the consumption of wood is greatly reduced.
finally, it is to be noted that: the above description is only a preferred embodiment of the present invention, and is only for the purpose of illustrating the technical solutions of the present invention, and not for the purpose of limiting the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.

Claims (10)

1. The straw composite board is characterized by comprising 60-80 parts of corn straws, 10-30 parts of straw straws, 10-20 parts of mushroom bran, 10-20 parts of sawdust, 0.1-1 part of ammonium dihydrogen phosphate, 0.5-1 part of polyvinyl acetate, 1-3 parts of polyvinyl alcohol, 0.3-0.8 part of a waterproof agent, 1-6 parts of a flame retardant and 2-6 parts of an adhesive.
2. the straw composite board according to claim 1, wherein the water-proofing agent is magnesium chloride.
3. The straw composite board according to claim 1, wherein the flame retardant agent is polyvinyl acetate.
4. The straw composite board according to claim 1, wherein the adhesive is polyvinyl alcohol.
5. the method for manufacturing the straw composite board according to claim 1, comprising the following steps:
Step 1, crushing raw materials: crushing corn straws and rice straw straws, and screening mushroom bran and sawdust by a mesh screen for later use;
Step 2, preparing a mixture: adding corn straws, straw straws, mushroom bran and sawdust into a material mixer, uniformly stirring, adding ammonium dihydrogen phosphate, polyvinyl acetate, polyvinyl alcohol, a waterproof agent, a flame retardant and an adhesive, and uniformly stirring to form a straw mixture for later use;
Step 3, hot pressing: pouring the straw mixture obtained in the step 2 into a mould for hot pressing to prepare a rough blank plate;
Step 4, polishing a finished product: and (4) polishing and cutting the rough blank plate in the step (3) to obtain a finished product.
6. The method for manufacturing the straw composite board according to claim 5, wherein the corn straws and the rice straw straws are crushed into fibers with the length of 3-5cm in the step 1.
7. The method for manufacturing the straw composite board according to claim 5, wherein the mesh screen in the step 1 is a mesh screen with 5 or 6 meshes.
8. The method for manufacturing the straw composite board according to claim 5, wherein in the step 2, the water content of the corn straw, the straw stalk, the mushroom bran and the wood chip is controlled to be 10-12% when the corn straw, the straw stalk, the mushroom bran and the wood chip are stirred in a stirrer after being added with water.
9. The method for manufacturing the straw composite board according to claim 5, wherein in the step 3, the mold is subjected to preheating treatment before hot pressing, and the preheating temperature is between 60 and 65 ℃.
10. The manufacturing method of the straw composite board according to claim 5, wherein the hot pressing temperature is 130 ℃; the hot pressing pressure is 3 MPa; hot pressing time is 5 min; the compression ratio was 6: 1.
CN201910708285.7A 2019-08-01 2019-08-01 Straw composite board and manufacturing method thereof Pending CN110549454A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113291022A (en) * 2021-04-09 2021-08-24 佳诺威集团股份有限公司 Cabinet routing plate and manufacturing method
CN114573996A (en) * 2022-03-01 2022-06-03 辽宁大学 Aluminum bran plate and preparation method thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5789945A (en) * 1980-11-26 1982-06-04 Yamaichi Yamagishi Shoten:Kk Core material and method for production thereof
KR20050070826A (en) * 2003-12-31 2005-07-07 김정만 Formed products made from rice-straw and a method of manufacturing them
CN101724282A (en) * 2009-11-19 2010-06-09 沈阳大学 Fungus chaff composite plate and preparation method thereof
CN109777137A (en) * 2018-12-28 2019-05-21 沈阳大学 A kind of stalk composite board and preparation method thereof

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5789945A (en) * 1980-11-26 1982-06-04 Yamaichi Yamagishi Shoten:Kk Core material and method for production thereof
KR20050070826A (en) * 2003-12-31 2005-07-07 김정만 Formed products made from rice-straw and a method of manufacturing them
CN101724282A (en) * 2009-11-19 2010-06-09 沈阳大学 Fungus chaff composite plate and preparation method thereof
CN109777137A (en) * 2018-12-28 2019-05-21 沈阳大学 A kind of stalk composite board and preparation method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113291022A (en) * 2021-04-09 2021-08-24 佳诺威集团股份有限公司 Cabinet routing plate and manufacturing method
CN114573996A (en) * 2022-03-01 2022-06-03 辽宁大学 Aluminum bran plate and preparation method thereof

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Application publication date: 20191210