CN108032404A - A kind of water-fast shaving board - Google Patents
A kind of water-fast shaving board Download PDFInfo
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- CN108032404A CN108032404A CN201711256473.8A CN201711256473A CN108032404A CN 108032404 A CN108032404 A CN 108032404A CN 201711256473 A CN201711256473 A CN 201711256473A CN 108032404 A CN108032404 A CN 108032404A
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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
- B27N3/02—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
- B27L—REMOVING BARK OR VESTIGES OF BRANCHES; SPLITTING WOOD; MANUFACTURE OF VENEER, WOODEN STICKS, WOOD SHAVINGS, WOOD FIBRES OR WOOD POWDER
- B27L11/00—Manufacture of wood shavings, chips, powder, or the like; Tools therefor
- B27L11/02—Manufacture of wood shavings, chips, powder, or the like; Tools therefor of wood shavings or the like
-
- 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
- B27N3/08—Moulding or pressing
- B27N3/10—Moulding of mats
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Mechanical Engineering (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
- Dry Formation Of Fiberboard And The Like (AREA)
Abstract
The invention discloses a kind of water-fast shaving board, belong to building material technical field.50~80 parts of modified wood shavings are weighed successively,20~30 parts of mixing adhesives,10~15 parts of additives and 5~8 parts of fire retardants,First will modified wood shavings and additive in temperature be 25~35 DEG C,After rotating speed is stirred 3~5min under conditions of being 230~250r/min,Blank must be mixed,Mixing adhesive is mixed in mixer with mixing blank,And fire retardant is added into mixer,In temperature be 30~40 DEG C,After rotating speed is stirred 30~50min under conditions of being 240~260r/min,Obtain blank,Blank is moved into mould,In temperature be 140~180 DEG C,Pressure is hot-forming under conditions of being 1.2~2.5MPa,Particieboard must be pre-processed,Pretreatment particieboard is moved into drying box under conditions of temperature is 50~80 DEG C,After dry 5~8h,Obtain water-fast shaving board.Water-fast shaving board prepared by technical solution of the present invention has the characteristics that excellent mechanical property and water resistance.
Description
Technical field
The invention discloses a kind of water-fast shaving board, belong to building material technical field.
Background technology
There is the quality that factors influence its product in particieboard preparation process, it is desired to have manufactured plank
Performance and quality.Just it must be understood that correlation between these thorough factors and in product preparation process to particieboard
Influence, to control these factors in research and production, prepare the production board with desired performance.Influence wood shavings
The factor of plate quality can be summarized as following aspects：
Material：1. the size and geometry of the type of raw materials of the seeds of wood shavings, 2. wood shavings, 3. wood shavings, 4. wood shavings is aqueous
Rate；Slab：1. the moisture content of slab, 2. arrangement orientation of the wood shavings in plate, 3. content of bark in slab；Sizing material and auxiliary agent：①
Adhesive type and quality, 2. resin added, 3. hardener dose and adding method, 4. glue be distributed in plate, 5. waterproofing agent type
And adding method；Technique：1. the drying of raw material, 2. resin application methods, 3. mat formation, 4. pre-pressing process parameter, 5. heat pressing process is joined
Number；Post-processing：1. environment temperature, the ways and means 2. post-processed；Production board：1. the density of the structure of product, 2. product,
3. moisture content of product etc..
Wooden flake board about containing 90%~95% wood shavings, says in theory, and the wood shavings of any geometry can be by
Utilize.The performance of product depends primarily upon wood shavings geometry and its distribution in plate and arrangement situation, secondly depends on protecting
Hold the sizing material of wood shavings splicing.If the other factors such as seeds of wooden shavings, glue kind, additive and condition of cure etc. with form into
The quadratic character of product is related, can be so as to the purposes of expansion production board, or is conducive to the implementation of manufacturing process.Traditional particieboard
Due to the shortcoming in production technology, wood shavings to be dealt with improperly, the particieboard produced, its mechanical property is poor, and damp and hot
Under environment, expansion of making moist, causes sheet deformation to go bad, and seriously affects needs of the particieboard to production and living, so as to influence its city
Field is promoted and application.
Therefore, it is the shortcomings that how improving traditional particieboard mechanical property and bad water resistance, comprehensive to obtain higher
The particieboard of energy, is that it is promoted and is applied to broader field, meets industrial production demand urgent problem to be solved.
The content of the invention
The present invention solves the technical problem of：Lacked for traditional particieboard mechanical property and water resistance are bad
A kind of point, there is provided water-fast shaving board.
In order to solve the above-mentioned technical problem, the technical solution adopted in the present invention is：
A kind of water-fast shaving board, is made of the raw material of following parts by weight：
Modified 50~80 parts of wood shavings
Mix 20~30 parts of adhesive
10~15 parts of additive
5~8 parts of fire retardant
The preparation method of the modified wood shavings is：
It is 6~12% that force plane flower is dried to moisture content, must pre-process force plane flower, and pretreatment force plane flower is pressed with ethyl orthosilicate
Mass ratio 1：4~1：8 mixing, and the polyisocyanates of pretreatment force plane 0.6~0.8 times of quality of flower is added, soak, filtering, obtains
Modified force plane flower；It is 10~15% that wood wool is dried to moisture content, obtains pretreatment wood wool, will pretreatment wood wool and silane
Coupling agent in mass ratio 1：3~1：6 mixing immersions, filtering, obtains modified wood wool, and modified force plane flower is pressed matter with modified wood wool
Measure ratio 3：1~2：1 mixing, obtains modified wood shavings；
It is described mixing adhesive preparation method be：
By neoprene adhesive and phenolic resin in mass ratio 3：1~5：1 mixing, and add neoprene adhesive quality
0.1~0.3 times of formaldehyde, is stirred, and mixing adhesive must be pre-processed, by coal oil mixture and vaseline in mass ratio 1：
4~1：8 mixing, Freezing smashing, sieving, obtains coal tar oil additive, and coal tar oil additive is mixed adhesive by matter with pretreatment
Measure ratio 1：5~1：8 mixing, and the dispersant of 0.1~0.2 times of coal tar oil additive quality is added, after being stirred, obtain epoxy glue
Glutinous agent；
The preparation method of the additive is：
By sepiolite and saturation cupric sulfate pentahydrate solution in mass ratio 1：10~1：15 mixing, cooling filtering, obtains single treatment sea
Afrodite, by single treatment sepiolite and paraffin in mass ratio 1：5~1：8 are mixed, and Freezing smashing, obtains after-treatment Hai Pao
Stone, by after-treatment sepiolite and sodium silicate solution in mass ratio 1：5~1：8 are stirred, and filtering, obtains additive；
The preparation method of the water-fast shaving board is：
（1）Formed by raw material and weigh each component；
（2）Modified wood shavings are mixed with additive, obtain mixing blank, mixing adhesive are mixed with mixing blank, and add resistance
Agent is fired, it is hot-forming after being stirred, it is dry, obtain water-fast shaving board.
The force plane flower particle diameter is 0.8~1.5cm.
The polyisocyanates for methyl diphenylene diisocyanate or toluene di-isocyanate(TDI) any one.
The wood wool particle diameter is 0.1~0.7cm.
The silane coupling agent is silane resin acceptor kh-550, in silane coupling agent KH-560 or Silane coupling reagent KH-570
Any one.
The preparation method of the coal oil mixture is by coalite tar and high temperature coal-tar in mass ratio 2：1~3：1
Mixing, up to coal oil mixture.
The dispersant is dispersant dispersant NNO, any one in Dispersant MF or dispersant 5040.
The preparation method of the saturation cupric sulfate pentahydrate solution is to move into water in beaker, is heated to water temperature as 70~80
DEG C, cupric sulfate pentahydrate is added into beaker, until there is crystal precipitation, filters, obtains saturation cupric sulfate pentahydrate solution.
The paraffin is the mineral wax mixture that carbon number is 20~32.
The fire retardant is magnesium hydroxide, any one in aluminium hydroxide or antimony oxide.
The beneficial effects of the invention are as follows：
（1）The present invention is when preparing water-fast shaving board using modified wood shavings, and first, wood shavings are by drying in modified wood shavings
Afterwards, ethyl orthosilicate, the mixed liquor and silane coupling agent of polyisocyanates, in immersion process, each penetration are soaked respectively
Into inside plant cell, and soak ethyl orthosilicate can be met during product is prepared water decomposition produce silica with
Ethanol, the silica of generation can not only strengthen the intensity of wood shavings inner cell, at the same can under the action of silane coupling agent with
Adhesive is combined so that product system intensity increases in product, and the ethanol produced can gasify under hot pressing condition, in body
Micro-pore is formed in system, so that the mechanical property of product and soundproof effect improve, secondly, the polyisocyanates of immersion can be
Combined in hot pressing with adhesive, promote the crosslinking of adhesive, so that the mechanical property of product further improves；
（2）The present invention uses mixing adhesive when preparing water-fast shaving board, on the one hand, mixing adhesive has used neoprene rubber
Glue adhesive and phenolic resin, so that adhesive viscosity improves, and then improve product mechanical property, on the other hand, gluing
High temperature coal-tar in agent can be dispersed in system in hot pressing under the action of pressure, glycerine and coalite tar
Portion, since high temperature coal-tar has caking property and hydrophobicity, so that the water resistance of product and mechanical property are improved；
（3）The present invention adds additive when preparing water-fast shaving board, and additive is made by sepiolite by processing, sepiolite
In cupric sulfate pentahydrate can provide moisture in hot pressing for teos hydrolysis, and cupric sulfate pentahydrate be heated after production
Thing can be with dry sepiolite together as product aggregate so that the mechanical property of product improves, and in sepiolite
Paraffin can be migrated in hot pressing to product wood shavings surface so that the water resistance of product improves, and paraffin is moving
During shifting, part fire retardant can be carried to product subsurface, product fire resistance is further lifted.
Embodiment
Force plane is spent and moves into drying box, it is 6~12% to be dried to moisture content, must pre-process force plane flower, will pretreatment force plane flower
With ethyl orthosilicate in mass ratio 1：4~1：8 are mixed in beaker, and into beaker add pretreatment force plane flower quality 0.6~
0.8 times of polyisocyanates, after soaking 2~3h under conditions of being 25~35 DEG C in temperature, filtering, obtains modified force plane flower, will be thin
Wood shavings move into drying box, are dried to moisture content as 10~15%, obtain pretreatment wood wool, will pretreatment wood wool with it is silane coupled
Agent in mass ratio 1：3~1：6 are mixed in flask, and after soaking 1~2h under conditions of being 30~40 DEG C in temperature, filtering, must change
Property wood wool, by modified force plane flower and modified wood wool in mass ratio 3：1~2：1 is mixed in mixer, in temperature for 45~
50 DEG C, after rotating speed is stirred 30~45min under conditions of being 220~300r/min, obtain modified wood shavings；Neoprene is gluing
Agent and phenolic resin in mass ratio 3：1~5：1 is mixed in reaction kettle, and neoprene adhesive quality is added into reaction kettle
0.1~0.3 times of formaldehyde, is 45~65 DEG C in temperature, 20~30min is stirred under conditions of 220~260r/min of rotating speed
Afterwards, mixing adhesive must be pre-processed, by coal oil mixture and vaseline in mass ratio 1：4~1：8 mixing, in temperature for 70~
80 DEG C, under conditions of rotating speed is 180~240r/min, after being stirred 30~45min, Freezing smashing, crosses 180~250 mesh sieves,
Coal tar oil additive is obtained, coal tar oil additive is mixed into adhesive in mass ratio 1 with pretreatment：5~1：8 mixing, and to coal tar
Oil additive mixes the dispersant that 0.1~0.2 times of coal tar oil additive quality is added in the mixture of adhesive with pretreatment, in
Temperature is 40~50 DEG C, after rotating speed is stirred 45~60min under conditions of being 200~250r/min, obtains mixing adhesive；Will
Sepiolite and saturation cupric sulfate pentahydrate solution in mass ratio 1：10~1：15 are mixed in wide neck flask, in temperature be 40~60
DEG C, after rotating speed is stirred 35~50min under conditions of being 220~320r/min, temperature of charge in wide neck flask is cooled to
20~25 DEG C, filtering, obtains single treatment sepiolite, by single treatment sepiolite and paraffin in mass ratio 1：5~1：8 mixing, in
Temperature is 55~65 DEG C, after rotating speed is stirred 20~30min under conditions of being 220~280r/min, obtains sepiolite paraffin and mixes
Compound, by sepiolite mineral wax mixture Freezing smashing, obtains after-treatment sepiolite, is with mass fraction by after-treatment sepiolite
20~40% sodium silicate solution in mass ratio 1：5~1：8 mixing, are 30~40 DEG C in temperature, rotating speed is 240~300r/min
Under conditions of be stirred 20~40min after, filtering, obtain additive；Count in parts by weight, weigh 50~80 parts of modified planes successively
Flower, 20~30 parts of mixing adhesives, 10~15 parts of additives and 5~8 parts of fire retardants, will first be modified wood shavings with additive in temperature
For 25~35 DEG C, after rotating speed is stirred 3~5min under conditions of being 230~250r/min, mixing blank is obtained, gluing will be mixed
Agent is mixed in mixer with mixing blank, and fire retardant is added into mixer, in temperature be 30~40 DEG C, rotating speed 240
After being stirred 30~50min under conditions of~260r/min, obtain blank, blank moved into mould, in temperature for 140~
180 DEG C, pressure is hot-forming under conditions of being 1.2~2.5MPa, obtains pretreatment particieboard, and pretreatment particieboard is moved into drying
Case after dry 5~8h, obtains water-fast shaving board under conditions of temperature is 50~80 DEG C.Force plane flower particle diameter for 0.8~
1.5cm.The polyisocyanates for methyl diphenylene diisocyanate or toluene di-isocyanate(TDI) any one.The wood wool
Particle diameter is 0.1~0.7cm.The silane coupling agent is silane resin acceptor kh-550, silane coupling agent KH-560 or silane coupled
Any one in agent KH-570.The preparation method of the coal oil mixture is that coalite tar and high temperature coal-tar are pressed quality
Than 2：1~3：1 mixing, up to coal oil mixture.The dispersant is dispersant dispersant NNO, Dispersant MF or dispersant
Any one in 5040.The preparation method of the saturation cupric sulfate pentahydrate solution is to move into water in beaker, and being heated to water temperature is
70~80 DEG C, cupric sulfate pentahydrate is added into beaker, until there is crystal precipitation, filters, obtains saturation cupric sulfate pentahydrate solution.It is described
Paraffin is the mineral wax mixture that carbon number is 20~32.The fire retardant is magnesium hydroxide, aluminium hydroxide or antimony oxide
In any one.
Example 1
Force plane is spent and moves into drying box, it is 12% to be dried to moisture content, must pre-process force plane flower, will pretreatment force plane flower and positive silicon
Acetoacetic ester in mass ratio 1：8 are mixed in beaker, and the polyisocyanic acid of pretreatment force plane 0.8 times of quality of flower is added into beaker
Ester, after soaking 3h under conditions of being 35 DEG C in temperature, filtering, obtains modified force plane flower, wood wool is moved into drying box, is dried to and contains
Water rate is 15%, obtains pretreatment wood wool, by pretreatment wood wool and silane coupling agent in mass ratio 1：6 are mixed in flask, in
After temperature soaks 2h under conditions of being 40 DEG C, filtering, obtains modified wood wool, by modified force plane flower with modified wood wool in mass ratio
2：1 is mixed in mixer, is 50 DEG C in temperature, after rotating speed is stirred 45min under conditions of being 300r/min, obtains modified plane
Flower；By neoprene adhesive and phenolic resin in mass ratio 5：1 is mixed in reaction kettle, and neoprene rubber is added into reaction kettle
The formaldehyde that 0.3 times of glue adhesive agent quality, is 65 DEG C in temperature, after being stirred 30min under conditions of rotating speed 260r/min, obtains pre-
Processing mixing adhesive, by coal oil mixture and vaseline in mass ratio 1：8 mixing, in temperature be 80 DEG C, rotating speed 240r/
Under conditions of min, after being stirred 45min, Freezing smashing, crosses 250 mesh sieves, coal tar oil additive is obtained, by coal tar oil additive
Adhesive in mass ratio 1 is mixed with pretreatment：8 mix, and mix the mixture of adhesive with pretreatment to coal tar oil additive
The middle dispersant for adding 0.2 times of coal tar oil additive quality, is 50 DEG C in temperature, rotating speed stirs mixed under conditions of being 250r/min
After closing 60min, mixing adhesive is obtained；By sepiolite and saturation cupric sulfate pentahydrate solution in mass ratio 1：15 are mixed in wide neck flask
In, it is 60 DEG C in temperature, after rotating speed is stirred 50min under conditions of being 320r/min, temperature of charge in wide neck flask is dropped
For temperature to 25 DEG C, filtering, obtains single treatment sepiolite, by single treatment sepiolite and paraffin in mass ratio 1：8 mixing, are in temperature
65 DEG C, after rotating speed is stirred 30min under conditions of being 280r/min, sepiolite mineral wax mixture is obtained, sepiolite paraffin is mixed
Compound Freezing smashing, obtains after-treatment sepiolite, and after-treatment sepiolite and mass fraction are pressed matter for 40% sodium silicate solution
Measure ratio 1：8 mixing, are 40 DEG C in temperature, after rotating speed is stirred 40min under conditions of being 300r/min, filtering, obtains additive；
Count in parts by weight, weigh 80 parts of modified wood shavings, 30 parts of mixing adhesives, 15 parts of additives and 8 parts of fire retardants successively, will first change
Property wood shavings and additive in temperature be 35 DEG C, after rotating speed is stirred 5min under conditions of being 250r/min, obtain mixing blank, will
Mixing adhesive is mixed in mixer with mixing blank, and fire retardant is added into mixer, is 40 DEG C in temperature, rotating speed is
After being stirred 50min under conditions of 260r/min, blank is obtained, blank is moved into mould, is 180 DEG C in temperature, pressure is
It is hot-forming under conditions of 2.5MPa, obtain pretreatment particieboard, will pre-process particieboard move into drying box in temperature be 80 DEG C
Under the conditions of, after dry 8h, obtain water-fast shaving board.The force plane flower particle diameter is 1.5cm.The polyisocyanates is diphenylmethyl
Alkane diisocyanate.The wood wool particle diameter is 0.7cm.The silane coupling agent is silane resin acceptor kh-550.The coal tar
The preparation method of oil mixture is by coalite tar and high temperature coal-tar in mass ratio 3：1 mixing, up to coal oil mixture.
The dispersant is dispersant dispersant NNO.The preparation method of the saturation cupric sulfate pentahydrate solution is to move into water in beaker,
Water temperature is heated to as 80 DEG C, cupric sulfate pentahydrate is added into beaker, until there is crystal precipitation, filters, obtains saturation cupric sulfate pentahydrate
Solution.The paraffin is the mineral wax mixture that carbon number is 20~32.The fire retardant is magnesium hydroxide.
Example 2
By force plane flower and wood wool in mass ratio 2：1 is mixed in mixer, is 50 DEG C in temperature, rotating speed is the bar of 300r/min
After being stirred 45min under part, wood shavings are obtained；By neoprene adhesive and phenolic resin in mass ratio 5：1 is mixed in reaction kettle
In, and add into reaction kettle the formaldehyde of 0.3 times of neoprene adhesive quality, in temperature be 65 DEG C, rotating speed 260r/min's
Under the conditions of be stirred 30min after, must pre-process mixing adhesive, by coal oil mixture and vaseline in mass ratio 1：8 is mixed
Close, be 80 DEG C in temperature, under conditions of rotating speed is 240r/min, after being stirred 45min, Freezing smashing, crosses 250 mesh sieves, obtain
Coal tar oil additive, adhesive in mass ratio 1 is mixed by coal tar oil additive with pretreatment：8 mixing, and to coal tar oil additive
The dispersant that 0.2 times of coal tar oil additive quality is added in the mixture of adhesive is mixed with pretreatment, is 50 DEG C in temperature, turns
After speed is stirred 60min under conditions of being 250r/min, mixing adhesive is obtained；By sepiolite and saturation cupric sulfate pentahydrate solution
In mass ratio 1：15 are mixed in wide neck flask, are 60 DEG C in temperature, rotating speed is stirred 50min under conditions of being 320r/min
Afterwards, temperature of charge in wide neck flask is cooled to 25 DEG C, filtering, obtains single treatment sepiolite, by single treatment sepiolite and stone
Wax in mass ratio 1：8 mixing, are 65 DEG C in temperature, after rotating speed is stirred 30min under conditions of being 280r/min, obtain sepiolite
Mineral wax mixture, by sepiolite mineral wax mixture Freezing smashing, obtains after-treatment sepiolite, by after-treatment sepiolite and quality
Fraction is 40% sodium silicate solution in mass ratio 1：8 mixing, are 40 DEG C in temperature, rotating speed stirs under conditions of being 300r/min
After mixing 40min, filtering, obtains additive；Count in parts by weight, weigh 80 parts of wood shavings successively, 30 parts of mixing adhesives, 15 parts add
Wood shavings and additive are first 35 DEG C in temperature, rotating speed is stirred under conditions of being 250r/min by charging and 8 parts of fire retardants
After 5min, mixing blank is obtained, mixing adhesive is mixed in mixer with mixing blank, and is added into mixer fire-retardant
Agent, is 40 DEG C in temperature, after rotating speed is stirred 50min under conditions of being 260r/min, obtains blank, blank is moved into mould
In, it is 180 DEG C in temperature, pressure is hot-forming under conditions of being 2.5MPa, obtains pretreatment particieboard, and pretreatment particieboard is moved
Enter drying box under conditions of temperature is 80 DEG C, after dry 8h, obtain water-fast shaving board.The force plane flower particle diameter is 1.5cm.Institute
It is methyl diphenylene diisocyanate to state polyisocyanates.The wood wool particle diameter is 0.7cm.The silane coupling agent is silane
Coupling agent KH-550.The preparation method of the coal oil mixture is by coalite tar and high temperature coal-tar in mass ratio 3：1
Mixing, up to coal oil mixture.The dispersant is dispersant dispersant NNO.The system of the saturation cupric sulfate pentahydrate solution
Preparation Method is to move into water in beaker, is heated to water temperature as 80 DEG C, cupric sulfate pentahydrate is added into beaker, until there is crystal analysis
Go out, filter, obtain saturation cupric sulfate pentahydrate solution.The paraffin is the mineral wax mixture that carbon number is 20~32.It is described fire-retardant
Agent is magnesium hydroxide.
Example 3
Force plane is spent and moves into drying box, it is 12% to be dried to moisture content, must pre-process force plane flower, will pretreatment force plane flower and positive silicon
Acetoacetic ester in mass ratio 1：8 are mixed in beaker, and the polyisocyanic acid of pretreatment force plane 0.8 times of quality of flower is added into beaker
Ester, after soaking 3h under conditions of being 35 DEG C in temperature, filtering, obtains modified force plane flower, wood wool is moved into drying box, is dried to and contains
Water rate is 15%, obtains pretreatment wood wool, by pretreatment wood wool and silane coupling agent in mass ratio 1：6 are mixed in flask, in
After temperature soaks 2h under conditions of being 40 DEG C, filtering, obtains modified wood wool, by modified force plane flower with modified wood wool in mass ratio
2：1 is mixed in mixer, is 50 DEG C in temperature, after rotating speed is stirred 45min under conditions of being 300r/min, obtains modified plane
Flower；By sepiolite and saturation cupric sulfate pentahydrate solution in mass ratio 1：15 are mixed in wide neck flask, in temperature be 60 DEG C, rotating speed
After being stirred 50min under conditions of 320r/min, temperature of charge in wide neck flask is cooled to 25 DEG C, filtering, obtains once
Sepiolite is handled, by single treatment sepiolite and paraffin in mass ratio 1：8 mixing, in temperature be 65 DEG C, rotating speed 280r/min
Under conditions of be stirred 30min after, obtain sepiolite mineral wax mixture, sepiolite mineral wax mixture Freezing smashing obtain secondary
Sepiolite is handled, by the sodium silicate solution in mass ratio 1 that after-treatment sepiolite and mass fraction are 40%：8 mixing, in temperature
For 40 DEG C, after rotating speed is stirred 40min under conditions of being 300r/min, filtering, obtains additive；Count in parts by weight, successively
80 parts of modified wood shavings, 15 parts of additives and 8 parts of fire retardants are weighed, it is 35 DEG C in temperature that will first be modified wood shavings with additive, rotating speed
After being stirred 5min under conditions of 250r/min, mixing blank is obtained, mixing blank is added in mixer, and to mixer
Middle addition fire retardant, is 40 DEG C in temperature, after rotating speed is stirred 50min under conditions of being 260r/min, blank is obtained, by blank
Move into mould, be 180 DEG C in temperature, pressure is hot-forming under conditions of being 2.5MPa, obtains pretreatment particieboard, will pre-process
Particieboard moves into drying box under conditions of temperature is 80 DEG C, after dry 8h, obtains water-fast shaving board.Force plane flower particle diameter is
1.5cm.The polyisocyanates is methyl diphenylene diisocyanate.The wood wool particle diameter is 0.7cm.It is described silane coupled
Agent is silane resin acceptor kh-550.The preparation method of the coal oil mixture is that coalite tar and high temperature coal-tar are pressed matter
Measure ratio 3：1 mixing, up to coal oil mixture.The dispersant is dispersant dispersant NNO.The saturation cupric sulfate pentahydrate is molten
The preparation method of liquid is to move into water in beaker, is heated to water temperature as 80 DEG C, cupric sulfate pentahydrate is added into beaker, until there is crystalline substance
Body separates out, and filtering, obtains saturation cupric sulfate pentahydrate solution.The paraffin is the mineral wax mixture that carbon number is 20~32.It is described
Fire retardant is magnesium hydroxide.
Example 4
Force plane is spent and moves into drying box, it is 12% to be dried to moisture content, must pre-process force plane flower, will pretreatment force plane flower and positive silicon
Acetoacetic ester in mass ratio 1：8 are mixed in beaker, and the polyisocyanic acid of pretreatment force plane 0.8 times of quality of flower is added into beaker
Ester, after soaking 3h under conditions of being 35 DEG C in temperature, filtering, obtains modified force plane flower, wood wool is moved into drying box, is dried to and contains
Water rate is 15%, obtains pretreatment wood wool, by pretreatment wood wool and silane coupling agent in mass ratio 1：6 are mixed in flask, in
After temperature soaks 2h under conditions of being 40 DEG C, filtering, obtains modified wood wool, by modified force plane flower with modified wood wool in mass ratio
2：1 is mixed in mixer, is 50 DEG C in temperature, after rotating speed is stirred 45min under conditions of being 300r/min, obtains modified plane
Flower；By neoprene adhesive and phenolic resin in mass ratio 5：1 is mixed in reaction kettle, and neoprene rubber is added into reaction kettle
The formaldehyde that 0.3 times of glue adhesive agent quality, is 65 DEG C in temperature, after being stirred 30min under conditions of rotating speed 260r/min, obtains pre-
Processing mixing adhesive, by coal oil mixture and vaseline in mass ratio 1：8 mixing, in temperature be 80 DEG C, rotating speed 240r/
Under conditions of min, after being stirred 45min, Freezing smashing, crosses 250 mesh sieves, coal tar oil additive is obtained, by coal tar oil additive
Adhesive in mass ratio 1 is mixed with pretreatment：8 mix, and mix the mixture of adhesive with pretreatment to coal tar oil additive
The middle dispersant for adding 0.2 times of coal tar oil additive quality, is 50 DEG C in temperature, rotating speed stirs mixed under conditions of being 250r/min
After closing 60min, mixing adhesive is obtained；Count in parts by weight, weigh 80 parts of modified wood shavings successively, 30 parts mix adhesives and 8 parts
Fire retardant, mixing adhesive is mixed in mixer with modified wood shavings, and fire retardant is added into mixer, in temperature be 40
DEG C, rotating speed be 260r/min under conditions of be stirred 50min after, obtain blank, by blank move into mould in, in temperature be 180
DEG C, pressure is hot-forming under conditions of being 2.5MPa, obtains pretreatment particieboard, and pretreatment particieboard is moved into drying box in temperature
Under conditions of 80 DEG C, after dry 8h, water-fast shaving board is obtained.The force plane flower particle diameter is 1.5cm.The polyisocyanates is
Methyl diphenylene diisocyanate.The wood wool particle diameter is 0.7cm.The silane coupling agent is silane resin acceptor kh-550.
The preparation method of the coal oil mixture is by coalite tar and high temperature coal-tar in mass ratio 3：1 mixing, up to coal tar
Oil mixture.The dispersant is dispersant dispersant NNO.The preparation method of the saturation cupric sulfate pentahydrate solution is to move water
Enter in beaker, be heated to water temperature as 80 DEG C, cupric sulfate pentahydrate is added into beaker, until there is crystal precipitation, filter, obtain saturation five
Brochanite solution.The paraffin is the mineral wax mixture that carbon number is 20~32.The fire retardant is magnesium hydroxide.
Comparative example：The particieboard of Dongguan City wood industry Co., Ltd production.
The water-fast shaving board of the gained of example 1 to 4 and comparative example product are subjected to performance detection, specific detection method is such as
Under：
1. mechanical property：Test plate internal bond strength, static bending strength respectively according to GB/T4857, per sample (p.s.) takes three blocks of plates
Material, averages；
2. water resistance：Test test specimen thickness swelling rate respectively according to GB/T4857.
Specific testing result is as shown in table 1：
Table 1
| Detection project | Example 1 | Example 2 | Example 3 | Example 4 | Comparative example |
| Static bending strength/MPa | 29.37 | 23.25 | 25.36 | 19.82 | 4.57 |
| Internal bond strength/MPa | 0.89 | 0.65 | 0.73 | 0.59 | 0.15 |
| Thickness swelling rate/% | 2.3 | 12.7 | 8.5 | 16.1 | 28.4 |
From 1 testing result of table, water-fast shaving board prepared by technical solution of the present invention has excellent mechanical property and resistance to
The characteristics of water-based, have broad prospects in the development of plate industry.
Claims (10)
1. a kind of water-fast shaving board, it is characterised in that be made of the raw material of following parts by weight：
Modified 50~80 parts of wood shavings
Mix 20~30 parts of adhesive
10~15 parts of additive
5~8 parts of fire retardant
The preparation method of the modified wood shavings is：
It is 6~12% that force plane flower is dried to moisture content, must pre-process force plane flower, and pretreatment force plane flower is pressed with ethyl orthosilicate
Mass ratio 1：4~1：8 mixing, and the polyisocyanates of pretreatment force plane 0.6~0.8 times of quality of flower is added, soak, filtering, obtains
Modified force plane flower；It is 10~15% that wood wool is dried to moisture content, obtains pretreatment wood wool, will pretreatment wood wool and silane
Coupling agent in mass ratio 1：3~1：6 mixing immersions, filtering, obtains modified wood wool, and modified force plane flower is pressed matter with modified wood wool
Measure ratio 3：1~2：1 mixing, obtains modified wood shavings；
It is described mixing adhesive preparation method be：
By neoprene adhesive and phenolic resin in mass ratio 3：1~5：1 mixing, and add neoprene adhesive quality
0.1~0.3 times of formaldehyde, is stirred, and mixing adhesive must be pre-processed, by coal oil mixture and vaseline in mass ratio 1：
4~1：8 mixing, Freezing smashing, sieving, obtains coal tar oil additive, and coal tar oil additive is mixed adhesive by matter with pretreatment
Measure ratio 1：5~1：8 mixing, and the dispersant of 0.1~0.2 times of coal tar oil additive quality is added, after being stirred, obtain epoxy glue
Glutinous agent；
The preparation method of the additive is：
By sepiolite and saturation cupric sulfate pentahydrate solution in mass ratio 1：10~1：15 mixing, cooling filtering, obtains single treatment sea
Afrodite, by single treatment sepiolite and paraffin in mass ratio 1：5~1：8 are mixed, and Freezing smashing, obtains after-treatment Hai Pao
Stone, by after-treatment sepiolite and sodium silicate solution in mass ratio 1：5~1：8 are stirred, and filtering, obtains additive；
The preparation method of the water-fast shaving board is：
（1）Formed by raw material and weigh each component；
（2）Modified wood shavings are mixed with additive, obtain mixing blank, mixing adhesive are mixed with mixing blank, and add resistance
Agent is fired, it is hot-forming after being stirred, it is dry, obtain water-fast shaving board.
A kind of 2. water-fast shaving board according to claim 1, it is characterised in that：Force plane flower particle diameter for 0.8~
1.5cm。
A kind of 3. water-fast shaving board according to claim 1, it is characterised in that：The polyisocyanates is diphenylmethyl
Alkane diisocyanate or toluene di-isocyanate(TDI) any one.
A kind of 4. water-fast shaving board according to claim 1, it is characterised in that：The wood wool particle diameter for 0.1~
0.7cm。
A kind of 5. water-fast shaving board according to claim 1, it is characterised in that：The silane coupling agent is silane coupled
Any one in agent KH-550, silane coupling agent KH-560 or Silane coupling reagent KH-570.
A kind of 6. water-fast shaving board according to claim 1, it is characterised in that：The preparation side of the coal oil mixture
Method is by coalite tar and high temperature coal-tar in mass ratio 2：1~3：1 mixing, up to coal oil mixture.
A kind of 7. water-fast shaving board according to claim 1, it is characterised in that：The dispersant is dispersant dispersant
Any one in NNO, Dispersant MF or dispersant 5040.
A kind of 8. water-fast shaving board according to claim 1, it is characterised in that：The saturation cupric sulfate pentahydrate solution
Preparation method is to move into water in beaker, is heated to water temperature as 70~80 DEG C, cupric sulfate pentahydrate is added into beaker, until there is crystalline substance
Body separates out, and filtering, obtains saturation cupric sulfate pentahydrate solution.
A kind of 9. water-fast shaving board according to claim 1, it is characterised in that：The paraffin be carbon number be 20~
32 mineral wax mixture.
A kind of 10. water-fast shaving board according to claim 1, it is characterised in that：The fire retardant is magnesium hydroxide, hydrogen
Any one in aluminium oxide or antimony oxide.
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| CN108818833A (en) * | 2018-07-05 | 2018-11-16 | 王景硕 | A kind of preparation method of stalk-shaving board |
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| CN110370417A (en) * | 2019-06-21 | 2019-10-25 | 李珂 | A kind of preparation method of high-strength water-resistance shaving board |
| CN110744652A (en) * | 2019-10-30 | 2020-02-04 | 马鞍山市谷庆门业有限公司 | Preparation method of wooden door veneer not easy to fall off |
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