CN108582398A - A kind of technique preparing wood-based plate using agricultural wastes - Google Patents

A kind of technique preparing wood-based plate using agricultural wastes Download PDF

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Publication number
CN108582398A
CN108582398A CN201810712151.8A CN201810712151A CN108582398A CN 108582398 A CN108582398 A CN 108582398A CN 201810712151 A CN201810712151 A CN 201810712151A CN 108582398 A CN108582398 A CN 108582398A
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China
Prior art keywords
parts
based plate
wood
retardant
flame
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CN201810712151.8A
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Chinese (zh)
Inventor
韩佳琪
谢剑玲
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Guangxi Zhejiang Agriculture Technology Co Ltd
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Guangxi Zhejiang Agriculture Technology Co Ltd
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Priority to CN201810712151.8A priority Critical patent/CN108582398A/en
Publication of CN108582398A publication Critical patent/CN108582398A/en
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    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
    • B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
    • B27K3/02—Processes; Apparatus
    • B27K3/12—Impregnating by coating the surface of the wood with an impregnating paste
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
    • B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
    • B27K3/52—Impregnating agents containing mixtures of inorganic and organic compounds
    • 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
    • B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
    • B27N3/02—Manufacture of substantially flat articles, e.g. boards, from particles or fibres from particles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
    • B27K2200/00—Wooden materials to be treated
    • B27K2200/10—Articles made of particles or fibres consisting of wood or other lignocellulosic material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
    • B27K2200/00—Wooden materials to be treated
    • B27K2200/15—Pretreated particles or fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
    • B27K2240/00—Purpose of the treatment
    • B27K2240/20—Removing fungi, molds or insects
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
    • B27K2240/00—Purpose of the treatment
    • B27K2240/30—Fireproofing

Abstract

The invention discloses a kind of techniques preparing wood-based plate using agricultural wastes, include the following steps：(1) it pre-processes：Bagasse, manioc waste, edible fungi residue and stalk are put into baking oven, dries, is then placed in pulverizer, 30~45min is crushed with the speed of 500~1000r/min, fineness reaches 50 mesh full by obtaining mixture；(2) preparation of basis material；(3) it sprays：By one layer of flame-retardant slurry of surface even application of basis material, dries, control the thickness of slurry, obtain material to be pressed；(4) it suppresses：Pavement layer by layer will be carried out in the material mold of falling people to be pressed, then in compression molding forming machine of making a gift to someone, precompressed is continuously heating to 50 DEG C, and hot pressing, release after being cooled to room temperature, applies last layer flame-retardant slurry, is put into drying and moulding in dryer and obtains wood-based plate after cooling.Wood-based plate prepared by the present invention has heat-resistant fireproof effect, has large market promotional value.

Description

A kind of technique preparing wood-based plate using agricultural wastes
【Technical field】
The present invention relates to the preparation field of wood-based plate, more particularly to a kind of work preparing wood-based plate using agricultural wastes Skill.
【Background technology】
China is the country of a poor forest resources, and 2014 the 8th time national forest assessment is the results show that people The forest savings amount possessed is but less than the 1/4 of world standard, about 9.42m3, occupy world rankings the 122nd.In addition, forest The contradiction of effective supply and growing social demand still protrudes, and China's timber external dependence degree close to 50%, pacify by timber It is complete that the situation is tense.Area can be adopted in existing Timber stands and only accounts for 13%, accumulation can be adopted and only account for 23%, and available resources is few, and timber supplies The structural inconsistency needed is very prominent.Meanwhile radical change, ecology production is not yet received in the situation of forest ecosystem function fragility Product shortage is still the outstanding problem for restricting China's Forest Resources sustainable development, causes the imbalance between supply and demand in China plank market more For protrusion.China has become the manufacture big country of world's wood-based plate at this stage, but the shortage of wood raw material tightly restricts China's wood-based plate industrial expansion.Therefore, we, which are badly in need of finding, can substitute timber resources and the short biomass resource of growth cycle.
China is large agricultural country, and crop specie is more, cultivated area is wide, can all generate straw after crop harvesting every year The a large amount of agricultural wastes such as stalk, rice straw.Traditionally, these residues are used as waste mostly, are handled in a manner of burning etc..No But ecological environment is destroyed, and is resulted in waste of resources.China's agricultural wastes in 2014 are more than 900,000,000 tons, if all recycling profits Goods and materials are regenerated with fertilizer, clean fuel, raw material of industry etc. can be produced, the value of these goods and materials is at least up to 180,000,000,000 Member.Therefore, the recycling for carrying out agricultural wastes is increasingly subject to social extensive concern.
Therefore, a kind of preparation process using agricultural wastes for basic material preparation wood-based plate is studied, for promoting agriculture The recycling of industry residue, the development for accelerating industry of artificial boards have vast researching value.
【Invention content】
Present invention aims at a kind of technique preparing wood-based plate using agricultural wastes is provided, the present invention is by using agriculture Industry residue is raw material, after dry and pulverization process；After each material is mixed, pass through the half of starch at 70~80 DEG C Gelatinization, each material is bonded together；Then in material surface spray coated flame retardant slurry；Finally after compacting, it is made artificial Plate.Wood-based plate prepared by the present invention has heat-resistant fireproof effect, has large market promotional value.
To solve the above problems, the technical solution adopted in the present invention is：It is a kind of to prepare wood-based plate using agricultural wastes Technique, include the following steps：
(1) it pre-processes：Count in parts by weight, by 100 portions of bagasse, 25~40 parts of manioc wastes, 10 parts of edible fungi residues and 50~80 parts of stalks are put into baking oven, and it is 3%~8% that moisture content is dried under conditions of 40~55 DEG C, is then placed in crushing In machine, 30~45min is crushed with the speed of 500~1000r/min, fineness reaches 50 mesh full by obtaining mixture；
(2) preparation of basis material：Count in parts by weight, by 50~100 parts of mixtures, 15~20 parts of starch, 5~10 parts After mixing, 80~160 parts of deionized waters are added, while with 50~100r/ in fire retardant, 3 parts of dispersants and 15~22 parts of silica flours The speed of min stirs, while being warming up to 70~80 DEG C, obtains basis material；
(3) it sprays：By one layer of flame-retardant slurry of surface even application of basis material, dry, control slurry thickness be 2~ 3mm obtains material to be pressed；
(4) it suppresses：Pavement layer by layer will be carried out in mold that the material specification of falling people to be pressed is 200mm × 120mm, then made a gift to someone In compression molding forming machine, 30~45s of precompressed under conditions of pressure is 2~3MPa is continuously heating to 50 DEG C, then in 5~10MPa Under conditions of 60~90s of hot pressing, release, after being cooled to room temperature, plate surface after pressing applies last layer flame-retardant slurry, is put into Drying and moulding in dryer obtains wood-based plate after cooling.
In the present invention, as further explanation, the flame-retardant slurry described in step (3) or step (4) is by following methods system It is standby：Count in parts by weight, by 20~40 parts of titanium nitrides, 5~10 parts of melamines, 3~6 parts of magnesium hydroxides and with 50~80 parts it is poly- After acetate emulsion mixing, with mixing speed 8~12h of mixing and ball milling of 100~200r/min, then in ultrasonication work( 30~45min of ultrasonication is carried out under conditions of rate is 200~500W, treatment temperature is 40~50 DEG C, is finally obtained fire-retardant Slurry.
In the present invention, as further explanation, the fire retardant described in step (2) is that saponin expanding fire retardant, phosphorus-are mono- swollen Any one or more in swollen fire retardant and triazine expanding fire retardant.
In the present invention, as further explanation, the dispersant described in step (2) is lauryl sodium sulfate, cellulose Any one or more in derivative, polyacrylamide, guar gum and cithrol.
In the present invention, as further explanation, the silica flour described in step (2) is the SILICA FUME of doping silicon dioxide.
In the present invention, as further explanation, the doping weight ratio of silica and SILICA FUME is in the silica flour 1：7~9.
The invention has the advantages that：
1. wood-based plate prepared by the present invention can have highly effective flame-retardant effect, moreover it is possible to it is high temperature resistant, corrosion-resistant, have Large market promotional value.
2. the present invention can make full use of agricultural wastes agricultural by-products, the production cost of wood-based plate is reduced, for agricultural The recycling of by-product provides new research direction.
【Specific implementation mode】
Embodiment 1：
1, early-stage preparations
The preparation of flame-retardant slurry：Count in parts by weight, by 20 parts of titanium nitrides, 5 parts of melamines, 3 parts of magnesium hydroxides and and After 50 parts of polyvinyl acetate emulsion mixing, with the mixing speed mixing and ball milling 8h of 100r/min, then in ultrasonication power Ultrasonication 30min is carried out under conditions of being 40 DEG C for 200W, treatment temperature, finally obtains flame-retardant slurry.
By above-mentioned prepared substance in the preparation process of following wood-based plates.
2, a kind of technique being prepared wood-based plate using agricultural wastes, is included the following steps：
(1) it pre-processes：It counts in parts by weight, by 100 portions of bagasse, 25 parts of manioc wastes, 10 parts of edible fungi residues and 50 parts Stalk is put into baking oven, and it is 3% that moisture content is dried under conditions of 40 DEG C, is then placed in pulverizer, with 500r/min's Speed crushes 30min, and fineness reaches 50 mesh full by obtaining mixture；
(2) preparation of basis material：Count in parts by weight, by 50 parts of mixtures, 15 parts of starch, 5 parts of fire retardants, 3 parts points After mixing, 80 parts of deionized waters are added in powder and 15 parts of silica flours, while stirred with the speed of 50r/min, while 70 DEG C are warming up to, Obtain basis material；
The fire retardant is saponin expanding fire retardant；
The dispersant is lauryl sodium sulfate；
The silica flour be will be 1 by weight：Mixture after 7 silica and SILICA FUME doping；
(3) it sprays：By one layer of flame-retardant slurry of surface even application of basis material, dry, the thickness for controlling slurry is 2mm obtains material to be pressed；
(4) it suppresses：Pavement layer by layer will be carried out in mold that the material specification of falling people to be pressed is 200mm × 120mm, then made a gift to someone In compression molding forming machine, precompressed 30s under conditions of pressure is 2MPa is continuously heating to 50 DEG C, then hot under conditions of 5MPa 60s, release, after being cooled to room temperature, plate surface after pressing is pressed to apply last layer flame-retardant slurry, be put into dryer and be dried to Type obtains wood-based plate after cooling.
Embodiment 2：
1, early-stage preparations
The preparation of flame-retardant slurry：Count in parts by weight, by 25 parts of titanium nitrides, 6 parts of melamines, 4 parts of magnesium hydroxides and and After 57 parts of polyvinyl acetate emulsion mixing, with the mixing speed mixing and ball milling 9h of 160r/min, then in ultrasonication power Ultrasonication 35min is carried out under conditions of being 43 DEG C for 300W, treatment temperature, finally obtains flame-retardant slurry.
By above-mentioned prepared substance in the preparation process of following wood-based plates.
2, a kind of technique being prepared wood-based plate using agricultural wastes, is included the following steps：
(1) it pre-processes：It counts in parts by weight, by 100 portions of bagasse, 30 parts of manioc wastes, 10 parts of edible fungi residues and 56 parts Stalk is put into baking oven, and it is 4% that moisture content is dried under conditions of 43 DEG C, is then placed in pulverizer, with 600r/min's Speed crushes 32min, and fineness reaches 50 mesh full by obtaining mixture；
(2) preparation of basis material：Count in parts by weight, by 80 parts of mixtures, 17 parts of starch, 6 parts of fire retardants, 3 parts points After mixing, 90 parts of deionized waters are added in powder and 20 parts of silica flours, while stirred with the speed of 70r/min, while 73 DEG C are warming up to, Obtain basis material；
The fire retardant is by being 1 by weight：The 1 mono- expanding fire retardant of phosphorus-and triazine expanding fire retardant mixes；
The dispersant is by being 1 by weight：1 cellulose derivative and polyacrylamide mix；
The silica flour be will be 1 by weight：Mixture after 8 silica and SILICA FUME doping；
(3) it sprays：By one layer of flame-retardant slurry of surface even application of basis material, dry, the thickness for controlling slurry is 2.4mm obtains material to be pressed；
(4) it suppresses：Pavement layer by layer will be carried out in mold that the material specification of falling people to be pressed is 200mm × 120mm, then made a gift to someone In compression molding forming machine, precompressed 37s under conditions of pressure is 2.3MPa is continuously heating to 50 DEG C, then under conditions of 8MPa Hot pressing 70s, release, after being cooled to room temperature, plate surface after pressing apply last layer flame-retardant slurry, are put into dryer dry Molding obtains wood-based plate after cooling.
Embodiment 3：
1, early-stage preparations
The preparation of flame-retardant slurry：Count in parts by weight, by 30 parts of titanium nitrides, 8 parts of melamines, 5 parts of magnesium hydroxides and and After 63 parts of polyvinyl acetate emulsion mixing, with the mixing speed mixing and ball milling 10h of 140r/min, then in ultrasonication power Ultrasonication 39min is carried out under conditions of being 48 DEG C for 400W, treatment temperature, finally obtains flame-retardant slurry.
By above-mentioned prepared substance in the preparation process of following wood-based plates.
2, a kind of technique being prepared wood-based plate using agricultural wastes, is included the following steps：
(1) it pre-processes：It counts in parts by weight, by 100 portions of bagasse, 33 parts of manioc wastes, 10 parts of edible fungi residues and 62 parts Stalk is put into baking oven, and it is 5% that moisture content is dried under conditions of 41 DEG C, is then placed in pulverizer, with 800r/min's Speed crushes 40min, and fineness reaches 50 mesh full by obtaining mixture；
(2) preparation of basis material：Count in parts by weight, by 90 parts of mixtures, 18 parts of starch, 6 parts of fire retardants, 3 parts points After mixing, 110 parts of deionized waters are added in powder and 20 parts of silica flours, while being stirred with the speed of 80r/min, while being warming up to 73 DEG C, obtain basis material；
The fire retardant is triazine expanding fire retardant；
The dispersant is by being 1 by weight：2 guar gum and the mixture of cithrol；
The silica flour be will be 1 by weight：Mixture after 9 silica and SILICA FUME doping；
(3) it sprays：By one layer of flame-retardant slurry of surface even application of basis material, dry, the thickness for controlling slurry is 2.5mm obtains material to be pressed；
(4) it suppresses：Pavement layer by layer will be carried out in mold that the material specification of falling people to be pressed is 200mm × 120mm, then made a gift to someone In compression molding forming machine, precompressed 40s under conditions of pressure is 2.7MPa is continuously heating to 50 DEG C, then under conditions of 9MPa Hot pressing 80s, release, after being cooled to room temperature, plate surface after pressing apply last layer flame-retardant slurry, are put into dryer dry Molding obtains wood-based plate after cooling.
Embodiment 4：
1, early-stage preparations
The preparation of flame-retardant slurry：Count in parts by weight, by 35 parts of titanium nitrides, 6 parts of melamines, 4 parts of magnesium hydroxides and and After 57 parts of polyvinyl acetate emulsion mixing, with the mixing speed mixing and ball milling 9h of 140r/min, then in ultrasonication power Ultrasonication 39min is carried out under conditions of being 42 DEG C for 400W, treatment temperature, finally obtains flame-retardant slurry.
By above-mentioned prepared substance in the preparation process of following wood-based plates.
2, a kind of technique being prepared wood-based plate using agricultural wastes, is included the following steps：
(1) it pre-processes：It counts in parts by weight, by 100 portions of bagasse, 36 parts of manioc wastes, 10 parts of edible fungi residues and 75 parts Stalk is put into baking oven, and it is 6% that moisture content is dried under conditions of 48 DEG C, is then placed in pulverizer, with 900r/min's Speed crushes 38min, and fineness reaches 50 mesh full by obtaining mixture；
(2) preparation of basis material：Count in parts by weight, by 80 parts of mixtures, 16 parts of starch, 7 parts of fire retardants, 3 parts points After mixing, 120 parts of deionized waters are added in powder and 21 parts of silica flours, while being stirred with the speed of 90r/min, while being warming up to 75 DEG C, obtain basis material；
The fire retardant is the mono- expanding fire retardant of phosphorus-；
The dispersant is to have by being 1 by weight：1：1 cellulose derivative, polyacrylamide, guar gum and poly- Glycol fatty acid ester mixes；
The silica flour be will be 1 by weight：Mixture after 8 silica and SILICA FUME doping；
(3) it sprays：By one layer of flame-retardant slurry of surface even application of basis material, dry, the thickness for controlling slurry is 2.7mm obtains material to be pressed；
(4) it suppresses：Pavement layer by layer will be carried out in mold that the material specification of falling people to be pressed is 200mm × 120mm, then made a gift to someone In compression molding forming machine, precompressed 39s under conditions of pressure is 2.3MPa is continuously heating to 50 DEG C, then under conditions of 6MPa Hot pressing 70s, release, after being cooled to room temperature, plate surface after pressing apply last layer flame-retardant slurry, are put into dryer dry Molding obtains wood-based plate after cooling.
Embodiment 5：
1, early-stage preparations
The preparation of flame-retardant slurry：Count in parts by weight, by 37 parts of titanium nitrides, 8 parts of melamines, 5 parts of magnesium hydroxides and and After 75 parts of polyvinyl acetate emulsion mixing, with the mixing speed mixing and ball milling 11h of 160r/min, then in ultrasonication power Ultrasonication 40min is carried out under conditions of being 43 DEG C for 450W, treatment temperature, finally obtains flame-retardant slurry.
By above-mentioned prepared substance in the preparation process of following wood-based plates.
2, a kind of technique being prepared wood-based plate using agricultural wastes, is included the following steps：
(1) it pre-processes：It counts in parts by weight, by 100 portions of bagasse, 36 parts of manioc wastes, 10 parts of edible fungi residues and 75 parts Stalk is put into baking oven, and it is 7% that moisture content is dried under conditions of 51 DEG C, is then placed in pulverizer, with 600r/min's Speed crushes 44min, and fineness reaches 50 mesh full by obtaining mixture；
(2) preparation of basis material：Count in parts by weight, by 90 parts of mixtures, 16 parts of starch, 6 parts of fire retardants, 3 parts points After mixing, 150 parts of deionized waters are added in powder and 18 parts of silica flours, while being stirred with the speed of 70r/min, while being warming up to 77 DEG C, obtain basis material；
The fire retardant is by being 1 by weight：2：1 saponin expanding fire retardant, the mono- expanding fire retardant of phosphorus-and triazine Expanding fire retardant mixes；
The dispersant is by being 1 by weight:1.3:1.5 cellulose derivative, polyacrylamide and guar gum It mixes；
The silica flour be will be 1 by weight：Mixture after 9 silica and SILICA FUME doping；
(3) it sprays：By one layer of flame-retardant slurry of surface even application of basis material, dry, the thickness for controlling slurry is 2.4mm obtains material to be pressed；
(4) it suppresses：Pavement layer by layer will be carried out in mold that the material specification of falling people to be pressed is 200mm × 120mm, then made a gift to someone In compression molding forming machine, precompressed 42s under conditions of pressure is 2.5MPa is continuously heating to 50 DEG C, then under conditions of 7MPa Hot pressing 80s, release, after being cooled to room temperature, plate surface after pressing apply last layer flame-retardant slurry, are put into dryer dry Molding obtains wood-based plate after cooling.
Embodiment 6：
1, early-stage preparations
The preparation of flame-retardant slurry：Count in parts by weight, by 40 parts of titanium nitrides, 10 parts of melamines, 6 parts of magnesium hydroxides and and After 80 parts of polyvinyl acetate emulsion mixing, with the mixing speed mixing and ball milling 12h of 200r/min, then in ultrasonication power Ultrasonication 45min is carried out under conditions of being 50 DEG C for 500W, treatment temperature, finally obtains flame-retardant slurry.
By above-mentioned prepared substance in the preparation process of following wood-based plates.
2, a kind of technique being prepared wood-based plate using agricultural wastes, is included the following steps：
(1) it pre-processes：It counts in parts by weight, by 100 portions of bagasse, 40 parts of manioc wastes, 10 parts of edible fungi residues and 80 parts Stalk is put into baking oven, and it is 8% that moisture content is dried under conditions of 55 DEG C, is then placed in pulverizer, with 1000r/min's Speed crushes 45min, and fineness reaches 50 mesh full by obtaining mixture；
(2) preparation of basis material：Count in parts by weight, by 100 parts of mixtures, 20 parts of starch, 10 parts of fire retardants, 3 parts After mixing, 160 parts of deionized waters are added in dispersant and 22 parts of silica flours, while being stirred with the speed of 100r/min, while being warming up to 80 DEG C, obtain basis material；
The fire retardant is the mono- expanding fire retardant of phosphorus-；
The dispersant is cithrol；
The silica flour be will be 1 by weight：Mixture after 9 silica and SILICA FUME doping；
(3) it sprays：By one layer of flame-retardant slurry of surface even application of basis material, dry, the thickness for controlling slurry is 3mm obtains material to be pressed；
(4) it suppresses：Pavement layer by layer will be carried out in mold that the material specification of falling people to be pressed is 200mm × 120mm, then made a gift to someone In compression molding forming machine, precompressed 45s under conditions of pressure is 3MPa is continuously heating to 50 DEG C, then hot under conditions of 10MPa 90s, release, after being cooled to room temperature, plate surface after pressing is pressed to apply last layer flame-retardant slurry, be put into dryer and be dried to Type obtains wood-based plate after cooling.
Above description is the detailed description for the present invention preferably possible embodiments, but embodiment is not limited to this hair Bright patent claim, it is all the present invention suggested by technical spirit under completed same changes or modifications change, should all belong to In the covered the scope of the claims of the present invention.

Claims (6)

1. a kind of technique preparing wood-based plate using agricultural wastes, it is characterised in that：Include the following steps：
(1) it pre-processes：Count in parts by weight, by 100 portions of bagasse, 25~40 parts of manioc wastes, 10 parts of edible fungi residues and 50~ 80 parts of stalks are put into baking oven, and it is 3%~8% that moisture content is dried under conditions of 40~55 DEG C, is then placed in pulverizer, 30~45min is crushed with the speed of 500~1000r/min, and fineness reaches 50 mesh full by obtaining mixture；
(2) preparation of basis material：Count in parts by weight, by 50~100 parts of mixtures, 15~20 parts of starch, 5~10 parts it is fire-retardant After mixing, 80~160 parts of deionized waters are added, while with 50~100r/min's in agent, 3 parts of dispersants and 15~22 parts of silica flours Speed stirs, while being warming up to 70~80 DEG C, obtains basis material；
(3) it sprays：By one layer of flame-retardant slurry of surface even application of basis material, drying, the thickness for controlling slurry is 2~3mm, Obtain material to be pressed；
(4) it suppresses：Pavement layer by layer will be carried out in mold that the material specification of falling people to be pressed is 200mm × 120mm, then molding of making a gift to someone In molding machine, 30~45s of precompressed under conditions of pressure is 2~3MPa is continuously heating to 50 DEG C, then in the item of 5~10MPa 60~90s of hot pressing under part, release, after being cooled to room temperature, plate surface after pressing apply last layer flame-retardant slurry, are put into drying Drying and moulding in machine obtains wood-based plate after cooling.
2. a kind of technique preparing wood-based plate using agricultural wastes according to claim 1, it is characterised in that：Step (3) Or the flame-retardant slurry described in step (4) is prepared by following methods：Count in parts by weight, by 20~40 parts of titanium nitrides, 5~10 part three Poly cyanamid, 3~6 parts of magnesium hydroxides and after being mixed with 50~80 parts of polyvinyl acetate emulsions, with the stirring speed of 100~200r/min Spend 8~12h of mixing and ball milling, then under conditions of ultrasonication power is 200~500W, treatment temperature is 40~50 DEG C into Row 30~45min of ultrasonication, finally obtains flame-retardant slurry.
3. a kind of technique preparing wood-based plate using agricultural wastes according to claim 1, it is characterised in that：Step (2) The fire retardant be saponin expanding fire retardant, the mono- expanding fire retardant of phosphorus-and triazine expanding fire retardant in any one or it is more Kind.
4. a kind of technique preparing wood-based plate using agricultural wastes according to claim 1, it is characterised in that：Step (2) The dispersant is lauryl sodium sulfate, cellulose derivative, polyacrylamide, guar gum and cithrol In any one or more.
5. a kind of technique preparing wood-based plate using agricultural wastes according to claim 1, it is characterised in that：Step (2) The silica flour is the SILICA FUME of doping silicon dioxide.
6. a kind of technique preparing wood-based plate using agricultural wastes according to claim 5, it is characterised in that：The silicon The doping weight ratio of silica and SILICA FUME is 1 in powder：7~9.
CN201810712151.8A 2018-06-29 2018-06-29 A kind of technique preparing wood-based plate using agricultural wastes Pending CN108582398A (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1287909A (en) * 2000-01-31 2001-03-21 赵昌健 Prodn. art for producing flame-retardant artificial board
CN104388044A (en) * 2014-11-12 2015-03-04 广西南宁绿园北林木业有限公司 High-adhesive-strength lignin fiberboard adhesive and production method thereof
CN104608230A (en) * 2015-01-12 2015-05-13 信阳美丽真好秸秆新材科技有限公司 Non-wood fiber flame retardant artificial board and manufacturing method thereof
CN104972545A (en) * 2015-03-29 2015-10-14 安徽松泰包装材料有限公司 Production technology for flame retarding straw artificial board

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1287909A (en) * 2000-01-31 2001-03-21 赵昌健 Prodn. art for producing flame-retardant artificial board
CN104388044A (en) * 2014-11-12 2015-03-04 广西南宁绿园北林木业有限公司 High-adhesive-strength lignin fiberboard adhesive and production method thereof
CN104608230A (en) * 2015-01-12 2015-05-13 信阳美丽真好秸秆新材科技有限公司 Non-wood fiber flame retardant artificial board and manufacturing method thereof
CN104972545A (en) * 2015-03-29 2015-10-14 安徽松泰包装材料有限公司 Production technology for flame retarding straw artificial board

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Application publication date: 20180928