CN105754363A - Fiber wood with formaldehyde purification function and production method thereof - Google Patents
Fiber wood with formaldehyde purification function and production method thereof Download PDFInfo
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
- B29C51/26—Component parts, details or accessories; Auxiliary operations
- B29C51/46—Measuring, controlling or regulating
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G12/00—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen
- C08G12/02—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes
- C08G12/40—Chemically modified polycondensates
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2007/00—Flat articles, e.g. films or sheets
- B29L2007/002—Panels; Plates; Sheets
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- 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
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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- 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
- C08K2201/00—Specific properties of additives
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
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- 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
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- 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
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- 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
- C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
- C08L2205/16—Fibres; Fibrils
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- Engineering & Computer Science (AREA)
- Polymers & Plastics (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Organic Chemistry (AREA)
- Wood Science & Technology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
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Abstract
The invention relates to fiber wood with a formaldehyde purification function and a production method thereof.The fiber wood comprises 60-100 parts of wood fibers, 20-50 parts of bamboo fibers, 2-5 parts of PVC (polyvinyl chloride) powder, 0.5-2 parts of vinyl trimethoxy silane, 3-5 parts of methylcellulose, 3-5 parts of sodium silicate, 3-5 parts of nano-calcium oxide, 5-15 parts of adhesive, 0.5-2 parts of nonylphenol polyoxyethylene ether, 3-5 parts of activated carbon powder and 3-5 parts of modified zeolite powder.The wood which is novel, environment-friendly man-made fiber wood contains the activated carbon powder and the modified zeolite powder with the formaldehyde purification function, so that formaldehyde emission of the wood is reduced; meanwhile, the wood has high mechanical strength, the board has good board processability as well as good elasticity modulus, and accordingly the wood can be widely applied to furniture and interior decoration.
Description
Technical field
The invention belongs to wood technologies field, relate to a kind of fibered wood species and preparation method thereof, in particular to one
There is fibered wood species of purifying formaldehyde function and preparation method thereof.
Background technology
Along with the raising of people's living standard, it is lived by people or the finishing in the place such as office, activity it is also proposed more
High requirement, not only requires elegant in appearance, modish fashion, naturally succinct, but also requires health environment-friendly.And current, China is raw
The fiberboard overwhelming majority produced uses Lauxite, formaldehyde and urea mix by certain mol proportion and carry out reacting generation urea aldehyde tree
Fat.Using common Lauxite to remain free formaldehyde as in the fiberboard sheet material of adhesive, the health endangering people is good for
Health, formaldehyde has spread effect to schneiderian membrane, retina, respiratory tract and the liver of human body, for a long time at high-concentration formaldehyde content
Working in environment and live, there will be the formaldehyde poisoning symptoms such as allergy, dizziness, fatiguability, vomiting, severe patient can cause a disease, even
Carcinogenic.Form aldehyde release essentially from: 1. in Lauxite end reaction free formaldehyde；2. in resin unstable molecule in hot pressing or
Sheet material releases again formaldehyde during using.
The most common fibered wood species, its burst size of methanal major part can reach Standard, and (calendar year 2001 is national
Put into effect in " the Form aldehyde release limitation in indoor hardware fitting wood-based plate and goods thereof " GBl8580 200l and specified, free first
Aldehyde burst size≤1.5mg/L, can be directly used for indoor, and the finishing material of free formaldehyde release≤5.0mg/L has to pass through decorations
Face could be used for indoor), but there are the release of pest, the finishing material used by place such as household, office, activity or use
Product, such as floor, furniture, wallpaper, smallpox, Wood-door window, coating etc., although the nuisance release of each product can reach GB
Require that, but several finishing material is used in same site space together, the nuisance jointly discharged is it is possible to greatly surpass
Going out GB, this is by the health of serious threat numerous people.
Therefore, produce a kind of environmental protection, almost without residual formaldehyde amount, fibered wood species that nuisance content is low, to protection people's
Healthy critically important.
Summary of the invention
The present invention provides a kind of fibered wood species with purifying formaldehyde function, comprises wood-fibred 60-100 part, bamboo fibre 20-
50 parts, PVC powder 2-5 part, vinyltrimethoxy silane 0.5-2 part, methylcellulose 3-5 part, sodium metasilicate 3-5 part, nano oxygen
Change calcium 3-5 part, adhesive 5-15 part, NPE 0.5-2 part, activated carbon powder 3-5 part, modified zeolite powder 3-5 part.
In one specific embodiment of the present invention, it is fine that the described fibered wood species with purifying formaldehyde function comprises wood
Tie up 80 parts, bamboo fibre 40 parts, PVC powder 4 parts, vinyltrimethoxy silane 2.5 parts, methylcellulose 3.5 parts, sodium metasilicate 4 parts,
Nano calcium oxide 4 parts, adhesive 10 parts, NPE 1 part, activated carbon powder 4 parts, modified zeolite powder 4 parts.
In one specific embodiment of the present invention, it is fine that the described fibered wood species with purifying formaldehyde function comprises wood
Tie up 65 parts, bamboo fibre 25 parts, PVC powder 2.5 parts, vinyltrimethoxy silane 1 part, methylcellulose 4 parts, sodium metasilicate 3.5 parts,
Nano calcium oxide 3 parts, adhesive 6 parts, NPE 1.5 parts, activated carbon powder 3.5 parts, modified zeolite powder 4.5 parts.
In one specific embodiment of the present invention, it is fine that the described fibered wood species with purifying formaldehyde function comprises wood
Tie up 90 parts, bamboo fibre 45 parts, PVC powder 4.5 parts, vinyltrimethoxy silane 1.5 parts, methylcellulose 4.5 parts, sodium metasilicate 4
Part, nano calcium oxide 5 parts, adhesive 14 parts, NPE 2 parts, activated carbon powder 5 parts, modified zeolite powder 4 parts.
In one specific embodiment of the present invention, wherein said adhesive is modified urea-formaldehyde resin, its preparation method
Including:
1) formaldehyde is disposably put into reactor, adds ammoniacal liquor and adjust pH to be 7.0-7.5, add polyvinyl alcohol and first time urea,
It is heated to 60-80 DEG C, insulation reaction 30-60min；
2) add second time urea and first time melamine, be heated to 80-90 DEG C, insulation reaction 30-60min；
3) add ammoniacal liquor and adjust pH=7.5-8.0, add second time melamine in 80-90 DEG C of insulation reaction 30-60min；
4) it is cooled to 60-70 DEG C, adds third time urea, insulation reaction 30-60min；It is subsequently adding oxidized starch, insulation reaction
30-60min；It is cooled to 50-55 DEG C, adds nano silicon, stir, be cooled to less than 45 DEG C, discharging, obtain modified
Lauxite.
In one specific embodiment of the present invention, urea, for the second time urea and the weight of third time urea for the first time
Ratio is 4:3:3.
In one specific embodiment of the present invention, formaldehyde, urea, melamine, polyvinyl alcohol, oxidized starch and receive
The weight ratio ratio of rice silica is for 60-90:40-60:5-10:3-5:1-3:3-5, preferably 80:50:8:4:2:4.
In one specific embodiment of the present invention, the preparation process of described modified zeolite powder includes: with natural boiling
Stone flour adds stirring 30-60min in concentrated nitric acid solution, filters；Add and hydrogen peroxide stirs 30-60min, filter；Then will boiling
Stone uses the calcining of syllogic gradient, and concrete calcination operation is: (a) carries out calcining 30-60min at 500 DEG C；(b) with 8-12 DEG C/
The heating rate of min is warmed up to 800 DEG C, and insulation calcining 30-60min at such a temperature；C () is with the intensification speed of 5-8 DEG C/min
Rate is warmed up to 1200 DEG C, and insulation calcining 30-60min at such a temperature, after calcining terminates, naturally cools to room temperature, to obtain final product.
In one specific embodiment of the present invention, the preparation method of described lumber fibre includes:
(1) residue that timber or timber are processed is sent into conveyer chain, enter drum chipper and be whittled into sheet, obtain wood chip；
(2) utilize magnet arrangement, remove the metal object that is mixed in wood chip, screen wood chip by screening machine, remove chip, and incited somebody to action
Chump is separated, and obtains uniform wood chip, and wood chip is carried out by the equipment that washes with water, remove mudstone contained in wood chip,
Sand and other impurity；
(3) boiling: the wood chip obtained in step (2) being put into vertical boiling cylinder and carries out boiling, in vertical boiling cylinder, wood chip exists
Temperature is that under the saturated vapor of 130-140 DEG C, boiling softens, and digestion time is 4-6 minute；
(4) applying wax defibrator process: put on by liquid wax on the wood chip after boiling, applying wax amount is the 0.5%-1% of the wood chip weight after boiling；
Then with defibrator, wood chip is ground, makes wood chip be separated into fiber in the abrasive disc of High Rotation Speed, obtain containing paraffin
Fibre stuff, obtains wood-fibred.
The wood-fibred of the present invention, bamboo fibre, adhesive (modified modified Lauxite), modified zeolite powder also can use ability
Prepared by the known method in territory.
Another aspect of the present invention relates to the preparation method of the described fibered wood species with purifying formaldehyde function, including as follows
Step:
(1) wood-fibred, bamboo fibre, PVC powder, sodium metasilicate, methylcellulose are mixed, obtain mixed slurry；
(2) the same vinyltrimethoxy silane of above-mentioned mixed slurry, adhesive, NPE mixing, add after drying
Enter nano calcium oxide, activated carbon powder and modified zeolite powder, shaping of mating formation, obtain slab；
(3) by slab hot pressing, hot pressing temperature is 180-200 DEG C, hot pressing time 20-40min, and hot pressing pressure is 4～6MPa；
(4) fiberboard after hot pressing is carried out cutting edge process, carries out plate facing sand light, to obtain final product.
In the present invention, weight portion can be converted into arbitrary unit of weight.
The fibered wood species of the present invention is expanded on further below in conjunction with specific embodiment.
Detailed description of the invention
Embodiment 1: the preparation of a kind of fibered wood species with purifying formaldehyde function
Dispensing comprises wood-fibred 80 parts, bamboo fibre 40 parts, PVC powder 4 parts, vinyltrimethoxy silane 2.5 parts, methylcellulose
3.5 parts, sodium metasilicate 4 parts, nano calcium oxide 4 parts, adhesive 10 parts, NPE 1 part, activated carbon powder 4 parts, modified
Zeolite powder 4 parts；
Wherein said adhesive is modified urea-formaldehyde resin, and its preparation method includes: formaldehyde 1) disposably puts into reactor, adds
Ammoniacal liquor adjusts pH to be 7.5, adds polyvinyl alcohol and first time urea, is heated to 70 DEG C, insulation reaction 60min；2) the is added
Secondary urea and for the first time melamine, be heated to 80 DEG C, insulation reaction 50min；3) add ammoniacal liquor and adjust pH=8.0, add
Melamine is in 85 DEG C of insulation reaction 50min for the second time；4) it is cooled to 65 DEG C, adds third time urea, insulation reaction 50min；
It is subsequently adding oxidized starch, insulation reaction 50min；It is cooled to 53 DEG C, adds nano silicon, stir, be cooled to 45
Below DEG C, discharging, obtain modified urea-formaldehyde resin；
Wherein the weight ratio of urea, for the second time urea and third time urea is 4:3:3 for the first time；Formaldehyde, urea, melamine,
The weight ratio of polyvinyl alcohol, oxidized starch and nano silicon is than for 80:50:8:4:2:4；
The preparation process of described modified zeolite powder includes: adds with natural zeolite powder and stirs 50min, mistake in concentrated nitric acid solution
Filter；Add and hydrogen peroxide stirs 50min, filter；Then zeolite uses syllogic gradient calcine, and concrete calcination operation is: (a)
Carry out calcining 60min at 500 DEG C；B () is warmed up to 800 DEG C with the heating rate of 8 DEG C/min, and be incubated calcining at such a temperature
60min；C () is warmed up to 1200 DEG C with the heating rate of 8 DEG C/min, and insulation calcining 60min at such a temperature, and calcining terminates
After, naturally cool to room temperature, to obtain final product；
The preparation of fibered wood species comprises the steps:
(1) wood-fibred, bamboo fibre, PVC powder, sodium metasilicate, methylcellulose are mixed, obtain mixed slurry；
(2) the same vinyltrimethoxy silane of above-mentioned mixed slurry, adhesive, NPE mixing, add after drying
Enter nano calcium oxide, activated carbon powder and modified zeolite powder, shaping of mating formation, obtain slab；
(3) by slab hot pressing, hot pressing temperature is 190 DEG C, hot pressing time 30min, and hot pressing pressure is 5MPa；
(4) fiberboard after hot pressing is carried out cutting edge process, carries out plate facing sand light, to obtain final product.
Embodiment 2: the preparation of a kind of fibered wood species with purifying formaldehyde function
Dispensing comprises wood-fibred 65 parts, bamboo fibre 25 parts, PVC powder 2.5 parts, vinyltrimethoxy silane 1 part, methylcellulose
4 parts, sodium metasilicate 3.5 parts, nano calcium oxide 3 parts, adhesive 6 parts, NPE 1.5 parts, activated carbon powder 3.5 parts,
Modified zeolite powder 4.5 parts；
Other are with embodiment 1.
Embodiment 3: the preparation of a kind of fibered wood species with purifying formaldehyde function
Dispensing comprises wood-fibred 90 parts, bamboo fibre 45 parts, PVC powder 4.5 parts, vinyltrimethoxy silane 1.5 parts, Methyl cellulose
Element 4.5 parts, sodium metasilicate 4 parts, nano calcium oxide 5 parts, adhesive 14 parts, NPE 2 parts, activated carbon powder 5 parts, change
Property zeolite powder 4 parts；
Adhesive is commercially available modified urea-formaldehyde resin, and modified zeolite is also commercially available prod；
Other are with embodiment 1.
Embodiment 4: the preparation of a kind of fibered wood species with purifying formaldehyde function
Dispensing comprises wood-fibred 65 parts, bamboo fibre 25 parts, PVC powder 2.5 parts, vinyltrimethoxy silane 1 part, methylcellulose
4 parts, sodium metasilicate 3.5 parts, nano calcium oxide 3 parts, adhesive 6 parts, NPE 1.5 parts, activated carbon powder 3.5 parts,
Modified zeolite powder 4.5 parts；
Wherein said adhesive is modified urea-formaldehyde resin, and its preparation method includes: formaldehyde 1) disposably puts into reactor, adds
Ammoniacal liquor adjusts pH to be 7.5, adds polyvinyl alcohol and first time urea, is heated to 70 DEG C, insulation reaction 60min；2) the is added
Secondary urea and for the first time melamine, be heated to 80 DEG C, insulation reaction 50min；3) add ammoniacal liquor and adjust pH=8.0, add
Melamine is in 85 DEG C of insulation reaction 50min for the second time；4) it is cooled to 65 DEG C, adds third time urea, insulation reaction 50min；
It is subsequently adding oxidized starch, insulation reaction 50min, is cooled to less than 45 DEG C, discharging, obtain modified urea-formaldehyde resin；
Other are with embodiment 1.
Embodiment 5: the preparation of a kind of fibered wood species with purifying formaldehyde function
Dispensing comprises wood-fibred 90 parts, bamboo fibre 45 parts, PVC powder 4.5 parts, vinyltrimethoxy silane 1.5 parts, Methyl cellulose
Element 4.5 parts, sodium metasilicate 4 parts, nano calcium oxide 5 parts, adhesive 14 parts, NPE 2 parts, activated carbon powder 5 parts, change
Property zeolite powder 4 parts；
The preparation process of described modified zeolite powder includes: adds with natural zeolite powder and stirs 50min, mistake in concentrated nitric acid solution
Filter；Add and hydrogen peroxide stirs 50min, filter；Then zeolite is calcined 180min at 1000 DEG C, after calcining terminates, the coldest
But to room temperature, to obtain final product；
Other are with embodiment 1.
Comparative example 1: the preparation of a kind of fibered wood species with purifying formaldehyde function
Dispensing comprises wood-fibred 80 parts, bamboo fibre 40 parts, vinyltrimethoxy silane 2.5 parts, methylcellulose 3.5 parts, silicon
4 parts of sodium of acid, nano calcium oxide 4 parts, adhesive 10 parts, NPE 1 part, activated carbon powder 4 parts, modified zeolite powder 4
Part；
Other are with embodiment 1.
Comparative example 2: the preparation of a kind of fibered wood species with purifying formaldehyde function
Dispensing comprises wood-fibred 80 parts, bamboo fibre 40 parts, PVC powder 4 parts, vinyltrimethoxy silane 2.5 parts, sodium metasilicate 4 parts,
Nano calcium oxide 4 parts, adhesive 10 parts, NPE 1 part, activated carbon powder 4 parts, modified zeolite powder 4 parts；
Other are with embodiment 1.
Comparative example 3: the preparation of a kind of fibered wood species with purifying formaldehyde function
Dispensing comprises wood-fibred 80 parts, bamboo fibre 40 parts, PVC powder 4 parts, vinyltrimethoxy silane 2.5 parts, methylcellulose
3.5 parts, sodium metasilicate 4 parts, nano calcium oxide 4 parts, adhesive 10 parts, activated carbon powder 4 parts, modified zeolite powder 4 parts；
Other are with embodiment 1.
Embodiment 6: performance test
The density of fibered wood species, internal bond strength, MOR and first prepared by mensuration embodiment 1-5 and comparative example 1-3
Aldehyde burst size, measurement result is shown in Table 1.
Table 1 the performance test results of the present invention
Data in table 1 show, embodiment of the present invention 1-5 burst size of methanal is low, reach E0 standard, knot in fibered wood species of the present invention
Close intensity and MOR is high, show that the fibered wood species of the present invention has stronger mechanical performance；Embodiment 1-2 uses specific
Method prepares modified urea-formaldehyde resin and modified zeolite, and its performance is better than embodiment 3-5；And comparative example 1-3 eliminates PVC respectively
After powder, methylcellulose and NPE, property indices all declines.
Claims (10)
1. there is a fibered wood species for purifying formaldehyde function, comprise wood-fibred 60-100 part, bamboo fibre 20-50 part, PVC powder 2-
5 parts, vinyltrimethoxy silane 0.5-2 part, methylcellulose 3-5 part, sodium metasilicate 3-5 part, nano calcium oxide 3-5 part, glue
Stick 5-15 part, NPE 0.5-2 part, activated carbon powder 3-5 part, modified zeolite powder 3-5 part.
The fibered wood species with purifying formaldehyde function the most according to claim 1, comprises wood-fibred 80 parts, bamboo fibre 40
Part, PVC powder 4 parts, vinyltrimethoxy silane 2.5 parts, methylcellulose 3.5 parts, sodium metasilicate 4 parts, nano calcium oxide 4 parts,
Adhesive 10 parts, NPE 1 part, activated carbon powder 4 parts, modified zeolite powder 4 parts.
The fibered wood species with purifying formaldehyde function the most according to claim 1, comprises wood-fibred 65 parts, bamboo fibre 25
Part, PVC powder 2.5 parts, vinyltrimethoxy silane 1 part, methylcellulose 4 parts, sodium metasilicate 3.5 parts, nano calcium oxide 3 parts,
Adhesive 6 parts, NPE 1.5 parts, activated carbon powder 3.5 parts, modified zeolite powder 4.5 parts.
The fibered wood species with purifying formaldehyde function the most according to claim 1, comprises wood-fibred 90 parts, bamboo fibre 45
Part, PVC powder 4.5 parts, vinyltrimethoxy silane 1.5 parts, methylcellulose 4.5 parts, sodium metasilicate 4 parts, nano calcium oxide 5
Part, adhesive 14 parts, NPE 2 parts, activated carbon powder 5 parts, modified zeolite powder 4 parts.
The fibered wood species with purifying formaldehyde function the most according to claim 1, wherein said adhesive is modified urea-formaldehyde
Resin, its preparation method includes:
1) formaldehyde is disposably put into reactor, adds ammoniacal liquor and adjust pH to be 7.0-7.5, add polyvinyl alcohol and first time urea,
It is heated to 60-80 DEG C, insulation reaction 30-60min；
2) add second time urea and first time melamine, be heated to 80-90 DEG C, insulation reaction 30-60min；
3) add ammoniacal liquor and adjust pH=7.5-8.0, add second time melamine in 80-90 DEG C of insulation reaction 30-60min；
4) it is cooled to 60-70 DEG C, adds third time urea, insulation reaction 30-60min；It is subsequently adding oxidized starch, insulation reaction
30-60min；It is cooled to 50-55 DEG C, adds nano silicon, stir, be cooled to less than 45 DEG C, discharging, obtain modified
Lauxite.
The fibered wood species with purifying formaldehyde function the most according to claim 5, wherein first time urea, for the second time urea
It is 4:3:3 with the weight ratio of third time urea.
The fibered wood species with purifying formaldehyde function the most according to claim 5, wherein formaldehyde, urea, melamine, poly-
The weight ratio of vinyl alcohol, oxidized starch and nano silicon is than for 60-90:40-60:5-10:3-5:1-3:3-5.
The fibered wood species with purifying formaldehyde function the most according to claim 1, the system of wherein said modified zeolite powder
Standby process includes: adds with natural zeolite powder and stirs 30-60min in concentrated nitric acid solution, filters；Add and hydrogen peroxide stirs 30-
60min, filters；Then zeolite uses syllogic gradient calcine, and concrete calcination operation is: (a) calcines at 500 DEG C
30-60min；B () is warmed up to 800 DEG C with the heating rate of 8-12 DEG C/min, and insulation calcining 30-60min at such a temperature；
C () is warmed up to 1200 DEG C with the heating rate of 5-8 DEG C/min, and insulation calcining 30-60min at such a temperature, after calcining terminates,
Naturally cool to room temperature, to obtain final product.
9. according to the preparation method of the fibered wood species with purifying formaldehyde function described in any one of claim 1-8, including such as
Lower step:
(1) wood-fibred, bamboo fibre, PVC powder, sodium metasilicate, methylcellulose are mixed, obtain mixed slurry；
(2) the same vinyltrimethoxy silane of above-mentioned mixed slurry, adhesive, NPE mixing, add after drying
Enter nano calcium oxide, activated carbon powder and modified zeolite powder, shaping of mating formation, obtain slab；
(3) by slab hot pressing, hot pressing temperature is 180-200 DEG C, hot pressing time 20-40min, and hot pressing pressure is 4～6MPa；
(4) fiberboard after hot pressing is carried out cutting edge process, carries out plate facing sand light, to obtain final product.
10. according to the fibered wood species with purifying formaldehyde function described in any one of claim 1-8 furniture, interior door and
Application in interior decoration.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106517888A (en) * | 2016-11-02 | 2017-03-22 | 金福兴 | Decorative board with air purification function and preparation method thereof |
| CN106696047A (en) * | 2017-02-07 | 2017-05-24 | 湖南省林业科学院 | Manufacturing method for environment-friendly type high-density wood and bamboo fiber board |
| CN108404644A (en) * | 2018-02-11 | 2018-08-17 | 福建工程学院 | A kind of formaldehyde trapping agent and its methods for making and using same |
| CN111055351A (en) * | 2019-11-12 | 2020-04-24 | 湖州南浔正方家私有限公司 | Environment-friendly office furniture decoration panel and production method thereof |
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| CN106696047B (en) * | 2017-02-07 | 2019-06-07 | 湖南省林业科学院 | A kind of environment-friendly type high-density wood bamboo fibrous plate production method |
| CN108404644A (en) * | 2018-02-11 | 2018-08-17 | 福建工程学院 | A kind of formaldehyde trapping agent and its methods for making and using same |
| CN108404644B (en) * | 2018-02-11 | 2021-03-30 | 福建工程学院 | Formaldehyde trapping agent and preparation and application methods thereof |
| CN111055351A (en) * | 2019-11-12 | 2020-04-24 | 湖州南浔正方家私有限公司 | Environment-friendly office furniture decoration panel and production method thereof |
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Application publication date: 20160713 |