CN108530796A - A kind of imitative stone material wood-plastic composite panel and preparation method of high-compatibility - Google Patents
A kind of imitative stone material wood-plastic composite panel and preparation method of high-compatibility Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08H—DERIVATIVES OF NATURAL MACROMOLECULAR COMPOUNDS
- C08H8/00—Macromolecular compounds derived from lignocellulosic materials
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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
- C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
- C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L27/04—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
- C08L27/06—Homopolymers or copolymers of vinyl chloride
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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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
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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
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Abstract
The invention belongs to technical fields prepared by composite board, provide a kind of imitative stone material wood-plastic composite panel and preparation method of high-compatibility.Marble powder is scattered in tetrafluoroethylene monomer, hexafluoropropene monomer by this method, the surface of lignocellulose plant fibre powder is uniformly wrapped on during carrying out polymerisation and generating fluorinated ethylene propylene copolymer, again with Corvic, plasticizer and antioxidant blending extrusion, you can be made high-compatibility imitative stone material wood-plastic composite panel.Compared with conventional method, the wood-plastic composite panel of preparation of the invention, the uniformity and interface compatibility of plant fiber and thermoplastic compound system be good; excellent in mechanical performance, and preparation process is simple, it is of low cost; it is efficient and effect is good, it is suitble to large-scale promotion application.
Description
Technical field
The invention belongs to technical fields prepared by composite board, provide a kind of imitative stone material wood-plastic clad plate of high-compatibility
Material and preparation method.
Background technology
In recent years, Global Forests resource was increasingly exhausted, and environmental protection consciousness is increasingly surging, the application to timber it is also proposed that
Higher requirement.In order to economize on resources, the utilization rate of timber and plastics, the difficulty for overcoming plastics and wood industry to face are improved
Topic, improve the utilization of countryside wastes and solid refuse, a kind of to be synthesized into natural timber and waste and old thermoplastic
New material-wood plastic composite obtains more and more extensive use with its excellent performance.
Wood plastic composite is to utilize wood powder, bamboo powder, shell powder or agricultural residues powder and plastic resin or waste plastic
For primary raw material, through high temperature mixing, processing and forming prepared by a kind of novel environment-friendly composite material.Wood plastic composite can be to prevent
It damages by worms, is anticorrosive, without preservative treatment and then reducing environmental pollution, and various hollow profiles can be processed to, therefore wood
Plastic composite materials are widely used in many fields, are a kind of most potential new materials.Not only can effective solution it is single
Certain performance deficiencies of material, and these wood plastic composites are discarded for solving in the extensive use of building, engineering field
The recycling of plastics, long-term Utilizing question are also a highly effective approach, and solve environmental issue, and it is dirty to reduce white
The effective means of dye.The exploitation and application of wood plastic composite have good social and economic benefit.
Wood plastic composite Research Challenges are at present：Highly polar plant fiber is uniformly mixed with apolar thermoplastic's plastics,
The problems such as improving plant fiber content in the composite and reducing production cost, the solution of these problems directly affects finished product
The mechanics of material and other physical and chemical performances.Therefore, the uniformity and interface compatibility for improving compound system mixing, to
The every physical and chemical performance for improving material is the key that prepare excellent wood plastic composite.
It is prepared both at home and abroad in wood plastic composite at present, especially improves the interface compatibility side of wood plastic composite system
Face has achieved certain effect.Wherein permitted a kind of preparation method of lightweight PE wood plastic composites of preeminent invention（Chinese invention
Number of patent application 201710288795.4）, take 100 parts of sisal dregs that ball mill mixer is added, add 3 ~ 6 parts of pentaerythrite tristearin
Acid esters stirs 20 ~ 30min in the case where rotating speed is 100 ~ 150r/min, obtains modified fibre；Above-mentioned modified fibre is added and is stirred
Machine, add 60 ~ 80 parts of PE plastics, 10 ~ 20 parts of rock wool fibers, 5 ~ 10 parts, 1 ~ 3 part antioxidant of phenolic resin, 1 ~ 3 part it is fire-retardant
Agent is uniformly mixed, obtains to obtain mixed material；Thermo-pressing moulder is added in mixed material, you can obtain molding wood plastic composite；At
Type wood plastic composite cooled to room temperature, you can obtain wood plastic composite；Wood plastic composite prepared by the invention is not
It is only ageing-resistant, heat resistance is good, the compatibility of PE plastics and sisal fiber is good, interfacial interaction power enhancing, improve wood moulding
The mechanical property of composite material, and the wood plastic composite density processed is small, it is light-weight, it is easy to use.In addition, plum celebrating wave etc.
A kind of preparation method of Wood-plastic floor is illustrated in human hair（Chinese invention patent application number 201610990432.0）, first with sunset abelmoschus root
Stalk is raw material, pretreatment sunset abelmoschus root fiber is obtained after microbial degradation modification, wherein Phanerochaete chrysosporium can be with
Lignin degrading to make content of cellulose increase, and can make between its intensity enhancing, with plastics to cellulose modified
Bonding force enhances, and recycling ethyl acrylate flexible material, it is modified, and improves the brittleness of cellulose, then by polyvinyl chloride
The substance reactions such as resin, zinc stearate obtain resin mixture liquor, finally carry out mixing hot pressing with substances such as homemade slurries again,
Wood-plastic floor is obtained, sodium methyl silicate can form one layer of waterproof membrane in floor surface, enhance the water resistance on floor, the invention system
Standby Wood-plastic floor is not easy to break, wear-resisting property is good, extends the service life of Wood-plastic floor.
As it can be seen that plant fiber and thermoplastic poor compatibility in wood plastic composite in the prior art so that material
Poor mechanical property, influence the normal scope of application；And traditional chemical modification method process is complicated, condition is harsh, inefficiency,
With high costs, effect is undesirable.
Invention content
For such case, the present invention proposes a kind of imitative stone material wood-plastic composite panel and preparation method of high-compatibility, from
And the interface compatibility of plant fiber and thermoplastic is effectively increased, improve the mechanical property of material, and technique letter
It is single, it is efficient and effect is good.
To achieve the above object, specific technical solution of the present invention is as follows：
A kind of preparation method of the imitative stone material wood-plastic composite panel of high-compatibility, by marble powder be scattered in tetrafluoroethylene monomer,
Hexafluoropropene monomer is uniformly wrapped on Woody plant during carrying out polymerisation generation fluorinated ethylene-propylene copolymer
The surface of fiber powder, then with Corvic, plasticizer and antioxidant blending extrusion, you can be made high-compatibility imitative stone material
Wood-plastic composite panel, preparation are as follows：
（1）Lignocellulose plant fibre is crushed, obtains a length of 10 ~ 100 μm of the fiber powder of diameter, and be added in high-speed mixer, then
Lye is added and obtains the lignocellulose plant fibre powder of surface active after mixed at high speed, drying process；Wherein：Lignocellulose plant fibre
25 ~ 35 parts by weight, 65 ~ 75 parts by weight of lye；
（2）By step（1）The lignocellulose plant fibre powder of obtained surface active is added in reaction kettle, then disperses marble powder
In tetrafluoroethylene monomer, hexafluoropropene monomer, initiator, catalyst, heating carries out polymerisation, and hydrophobic fluorination second is made
The modified fibre powder that alkene-propylene copolymer uniformly coats；Wherein：5-10 parts of marble powder, 66 ~ 72.5 weight of lignocellulose plant fibre powder
Measure part, 12 ~ 15 parts by weight of tetrafluoroethylene monomer, 15 ~ 18 parts by weight of hexafluoropropene monomer, 0.2 ~ 0.5 parts by weight of initiator, catalysis
0.3 ~ 0.5 parts by weight of agent；
（3）By step（2）It is 200 ~ 1000 μ of path length that the modified fibre powder of fluorinated ethylene-propylene copolymer cladding obtained, which crushes,
Then m is mixed with Corvic, plasticizer and antioxidant, adds twin-screw extrude extrusion calendaring and obtain height
The Wood plastic boards of compatibility；Wherein：35 ~ 50 parts by weight of modified fibre powder of fluorinated ethylene-propylene copolymer cladding, polyvinyl chloride
48 ~ 64 parts by weight of resin, 0.7 ~ 1.4 parts by weight of plasticizer, 0.3 ~ 0.6 parts by weight of antioxidant.
Preferably, step（1）The lye is the mixed solution of sodium hydroxide and sodium carbonate, and total concentration is no more than 2g/L.
Preferably, step（1）The temperature of the mixed at high speed be 50 ~ 65 DEG C, rotating speed be 60 ~ 80r/min, the time be 7 ~
15min。
Preferably, step（2）The initiator is benzoyl peroxide, the benzoyl peroxide tert-butyl ester, peroxidating first and second
At least one of ketone.
Preferably, step（2）The catalyst is metallocene catalyst, and transition metal therein is zirconium, titanium or rare gold
Belong to, ligand is one kind in cyclopentadienyl, cogongrass base, indenyl.
Preferably, step（2）The temperature of the polymerisation be 110 ~ 130 DEG C, pressure be 0.3 ~ 0.6MPa, the time be 1 ~
3h。
Preferably, step（3）The plasticizer is dioctyl phthalate, BBP(Butyl Benzyl Phthalate, O-phthalic
At least one of dibutyl phthalate, repefral, diethyl phthalate.
Preferably, step（3）The antioxidant is molybdenum diisooctyl dithiophosphate, carbamic acid molybdenum, dialkyl disulfides
For at least one of carbamic acid molybdenum.
Lignocellulose plant fibre is inorganic hydrophilic structure, and surface is inorganic group, and reactivity is low, with PVC base system
The compatibility of resin is very poor.Lignocellulose plant fibre can significantly modify the structure of surface protein or fiber, change after alkali process
Become the surface charge of pigment.Dehydroalanine can also be residual with arginine, histidine, threonine, serine, tyrosine and tryptophan
The derivative being not present in native protein is formed by condensation reaction between base, peptide interchain is made to generate covalent cross-linking.Therefore, alkali
Treated, and lignocellulose plant fibre powder has stronger lipophile, and surface reaction activity increases.
Furthermore when tetrafluoroethene and hexafluoropropene monomer are copolymerized, marble richness nickel is dispersed therein to form uniform dispersion
Body, and be fluorinated end and can be formed and be chemically bonded with the surface of lignocellulose plant fibre powder generation graft reaction, ethylene end and propylene end
It is then copolymerized, to realize that cladding, obtained copolymer are nucleocapsid, core is the lignocellulose plant fibre being connect with fluorination end
Powder, shell are the ethylene-propylene copolymer end of high hydrophobicity.With PVC base system resin alloy and when squeezing out, can significantly improve
The compatibility of mixed uniformity and interface.With outstanding imitative stone material.
The present invention also provides a kind of imitative stone material wood-plastic composite panels for the high-compatibility that above-mentioned preparation method is prepared.
Marble powder is scattered in tetrafluoroethylene monomer, hexafluoropropene monomer by this method, and fluorine is generated carrying out polymerisation
Be uniformly wrapped on the surface of lignocellulose plant fibre powder during changing ethylene-propylene copolymer, then with Corvic, plasticising
Agent and antioxidant blending extrusion, calendering can be prepared by the imitative stone material wood-plastic composite panel of high-compatibility.Compared with conventional method, this
The wood-plastic composite panel of the preparation of invention, the uniformity and interface compatibility of plant fiber and thermoplastic compound system are good,
Excellent in mechanical performance, and preparation process is simple, it is of low cost, it is efficient and effect is good, it is suitble to large-scale promotion application.
The present invention provides the imitative stone material wood-plastic composite panels and preparation method of a kind of high-compatibility, with prior art phase
Than the feature and excellent effect protruded is：
1. wood-plastic composite panel prepared by the present invention, physical and chemical performance is excellent, has a extensive future.
2. the preparation method of the present invention, passes through the ethylene fluoride for being aggregated in plant fiber powder surface coated by hydrophobic of monomer
Propylene copolymer achievees the purpose that the compatibility of improvement and PVC matrix, significantly improves uniformity and the boundary of compound system mixing
Face compatibility, Wood-plastic material excellent in mechanical performance obtained.
3. the preparation method of the present invention, process is simple, of low cost, efficient and effect is good, is suitble to promote production.
Specific implementation mode
In the following, the present invention will be further described in detail by way of specific embodiments, but this should not be interpreted as to the present invention
Range be only limitted to example below.Without departing from the idea of the above method of the present invention, according to ordinary skill
The various replacements or change that knowledge and customary means are made, should be included in the scope of the present invention.
Embodiment 1
31kg lignocellulose plant fibres are crushed, obtain a length of 60 μm of the fiber powder of average diameter, and be added in high-speed mixer, then
The mixed solution of sodium hydroxide and sodium carbonate that 69kg total concentrations are 2g/L is added, in the case where temperature is 58 DEG C, with turning for 72r/min
Fast mixed at high speed 12min is dried to obtain the lignocellulose plant fibre powder of surface active；By the Woody plant of 69.3kg surface actives
Fiber powder is added in reaction kettle, be then added 5kg marble powders, 13kg tetrafluoroethylene monomers, 17kg hexafluoropropenes monomer,
The transition metal of 0.3kg benzoyl peroxides, 0.4kg metallocene catalysts, catalyst is zirconium, and ligand is cyclopentadienyl, in temperature
It is progress 2h polymerisations under 0.5MPa for 115 DEG C, pressure, hydrophobic fluorinated ethylene-propylene copolymer is made and uniformly coats
Modified fibre powder；It is average 700 μm of path length that the modified fibre powder that 43kg fluorinated ethylene-propylene copolymers are coated, which crushes, so
It mixes and stirs with 55.4kg Corvics, 1.1kg dioctyl phthalates and 0.5kg molybdenum diisooctyl dithiophosphates afterwards
It mixes, adds twin-screw extrude extrusion calendaring and obtain the Wood plastic boards of high-compatibility.
Embodiment 2
25kg lignocellulose plant fibres are crushed, obtain a length of 30 μm of the fiber powder of average diameter, and be added in high-speed mixer, then
The mixed solution of sodium hydroxide and sodium carbonate that 75kg total concentrations are 1.5g/L is added, in the case where temperature is 50 DEG C, with 60r/min's
Rotating speed mixed at high speed 15min is dried to obtain the lignocellulose plant fibre powder of surface active；By the wooden plant of 72.5kg surface actives
Fibres powder is added in reaction kettle, be then added 6kg marble powders, 12kg tetrafluoroethylene monomers, 15kg hexafluoropropenes monomer,
The transition metal of the 0.2kg benzoyl peroxides tert-butyl ester, 0.3kg metallocene catalysts, catalyst is titanium, and ligand is cogongrass base,
3h polymerisations are carried out in the case where temperature is 110 DEG C, pressure is 0.3MPa, and it is equal that hydrophobic fluorinated ethylene-propylene copolymer is made
The modified fibre powder of even cladding；The modified fibre powder that 35kg fluorinated ethylene-propylene copolymers are coated crushes as average path length 200
μm, it is then mixed, adds with 64kg Corvics, 0.7kg dibutyl phthalates and 0.3kg carbamic acid molybdenums
Enter extrusion calendaring in double screw extruder and obtains the Wood plastic boards of high-compatibility.
Embodiment 3
35kg lignocellulose plant fibres are crushed, obtain a length of 100 μm of the fiber powder of average diameter, and be added in high-speed mixer, so
The mixed solution of sodium hydroxide and sodium carbonate that 65kg total concentrations are 1.8g/L is added afterwards, in the case where temperature is 65 DEG C, with 80r/min
Rotating speed mixed at high speed 7min, be dried to obtain the lignocellulose plant fibre powder of surface active；By the Woody plant of 66kg surface actives
Fiber powder is added in reaction kettle, be then added 7kg marble powders, 15kg tetrafluoroethylene monomers, 18kg hexafluoropropenes monomer,
The transition metal of 0.5kg methyl ethyl ketone peroxides, 0.5kg metallocene catalysts, catalyst is zirconium, and ligand is indenyl, in temperature
It is progress 1h polymerisations under 0.6MPa for 130 DEG C, pressure, hydrophobic fluorinated ethylene-propylene copolymer is made and uniformly coats
Modified fibre powder；It is average 1000 μm of path length that the modified fibre powder that 50kg fluorinated ethylene-propylene copolymers are coated, which crushes, so
It is mixed afterwards with 48kg Corvics, 1.4kg dibutyl phthalates and bis- molybdenum dialkyldithiocarbamacompositions of 0.6kg
Stirring, adds twin-screw extrude extrusion calendaring and obtains the Wood plastic boards of high-compatibility.
Embodiment 4
27kg lignocellulose plant fibres are crushed, obtain a length of 30 μm of the fiber powder of average diameter, and be added in high-speed mixer, then
The mixed solution of sodium hydroxide and sodium carbonate that 73kg total concentrations are 2g/L is added, in the case where temperature is 55 DEG C, with turning for 65r/min
Fast mixed at high speed 12min is dried to obtain the lignocellulose plant fibre powder of surface active；The Woody plant of 70.4kg surface actives is fine
It ties up powder to be added in reaction kettle, 8kg marble powders, 13kg tetrafluoroethylene monomers, 16kg hexafluoropropenes monomer, 0.3kg is then added
The transition metal of benzoyl peroxide, 0.3kg metallocene catalysts, catalyst is titanium, and ligand is cyclopentadienyl, is 115 in temperature
DEG C, pressure be that 2.5h polymerisations are carried out under 0.4MPa, changing of uniformly coating of hydrophobic fluorinated ethylene-propylene copolymer is made
Property fiber powder；The modified fibre powder that 38kg fluorinated ethylene-propylene copolymers are coated crushes as average 400 μm of path length, then with
50kg Corvics, 0.8kg repefrals and 0.4kg molybdenum diisooctyl dithiophosphates are mixed, and add
Enter extrusion calendaring in double screw extruder and obtains the Wood plastic boards of high-compatibility.
Embodiment 5
32kg lignocellulose plant fibres are crushed, obtain a length of 80 μm of the fiber powder of average diameter, and be added in high-speed mixer, then
The mixed solution of sodium hydroxide and sodium carbonate that 68kg total concentrations are 1.7g/L is added, in the case where temperature is 62 DEG C, with 75r/min's
Rotating speed mixed at high speed 9min is dried to obtain the lignocellulose plant fibre powder of surface active；The Woody plant of 68kg surface actives is fine
It ties up powder to be added in reaction kettle, then 8kg marble powders, 14kg tetrafluoroethylene monomers, 17kg hexafluoropropenes monomer, 0.5kg peroxides
Change the benzoyl tert-butyl ester, 0.5kg metallocene catalysts, the transition metal of catalyst is zirconium, and it in temperature is 125 that ligand, which is cogongrass base,
DEG C, pressure be that 1.5h polymerisations are carried out under 0.4MPa, changing of uniformly coating of hydrophobic fluorinated ethylene-propylene copolymer is made
Property fiber powder；The modified fibre powder that 45kg fluorinated ethylene-propylene copolymers are coated crushes as average 800 μm of path length, then with
53.3kg Corvics, 1.2kg diethyl phthalates and 0.5kg carbamic acid molybdenums are mixed, and twin-screw is added
Extrusion calendaring obtains the Wood plastic boards of high-compatibility in extruder.
Embodiment 6
30kg lignocellulose plant fibres are crushed, obtain a length of 50 μm of the fiber powder of average diameter, and be added in high-speed mixer, then
The mixed solution of sodium hydroxide and sodium carbonate that 70kg total concentrations are 2g/L is added, in the case where temperature is 60 DEG C, with turning for 70r/min
Fast mixed at high speed 10min is dried to obtain the lignocellulose plant fibre powder of surface active；By the matter plant fiber powder of 70kg surface actives
It is added in reaction kettle, 5kg marble powders, 13kg tetrafluoroethylene monomers, 16kg hexafluoropropenes monomer, 0.5k peroxidating is then added
The transition metal of methyl ethyl ketone, 0.5kg metallocene catalysts, catalyst is titanium, and ligand is indenyl, is 120 DEG C, pressure in temperature
To carry out 2h polymerisations under 0.5MPa, the modified fibre powder that hydrophobic fluorinated ethylene-propylene copolymer uniformly coats is made；
The modified fibre powder that 40kg fluorinated ethylene-propylene copolymers are coated crushes as average 600 μm of path length, then with 58.5kg polychlorostyrene
Vinyl, 1kg dioctyl phthalates and 0.5kg molybdenum dialkyldithiocarbamacompositions are mixed, and twin-screw is added
Extrusion calendaring obtains the Wood plastic boards of high-compatibility in extruder.
Comparative example 1
In wood-plastic composite panel preparation process, monomer polymerization covered fiber is not used, but directly with marble powder, fluorination second
Alkene-propylene copolymer is modified with fiber blend, other preparation conditions are consistent with embodiment 6.
Comparative example 2
In wood-plastic composite panel preparation process, fluorinated ethylene-propylene copolymer is not coated on plant fiber powder surface, is directly used
Marble powder, other preparation conditions are consistent with embodiment 6.
Test method：
The obtained Wood plastic boards of embodiment 1-6, comparative example 1-2 are tested into its mechanical property, to weigh its compatibility.
Mechanics Performance Testing：Equipment is universal hydraulic testing machine, and test method is with reference to the corresponding codes and standards of country：
Tensile strength（Standard：GB T 16421-1996 ）：It is 250mm that length, which is made, in obtained wood-plastic clad plate, and width is
The sample of 15mm, test speed 100mm/min, sample are 5, measure and calculate the tensile strength of sample；
Notch impact strength（Standard： GB T 1843-2008 ）：It is 80mm, width that length, which is made, in obtained wood-plastic clad plate
For the notched specimen of 10mm, notch is Type B, parallel impact, and sample is 5, measures and calculate the notch impact strength of sample；
Bending strength（Standard：GB/T 9341-2000）：It is 80mm, width 10mm that length, which is made, in obtained wood-plastic clad plate
Sample, test speed 100mm/min, sample be 5, measure and calculate the bending strength of sample.
The data obtained is as shown in table 1.
Table 1：
| Performance indicator | Cross section dispersing character | Tensile strength（MPa） | Notch impact strength（J/m2） | Bending strength（MPa） |
| Embodiment 1 | It is evenly dispersed | 45.2 | 12.1 | 56.5 |
| Embodiment 2 | It is evenly dispersed | 42.3 | 16.8 | 58.4 |
| Embodiment 3 | It is evenly dispersed | 43.6 | 14.8 | 59.2 |
| Embodiment 4 | It is evenly dispersed | 45.8 | 15.2 | 58.8 |
| Embodiment 5 | It is evenly dispersed | 46.2 | 14.9 | 57.6 |
| Embodiment 6 | It is evenly dispersed | 48.5 | 13.8 | 59.4 |
| Comparative example 1 | There is micropore in section | 25.2 | 7.8 | 40.2 |
| Comparative example 2 | There is gross porosity in section | 21.2 | 6.4 | 31.7 |
Claims (9)
1. a kind of preparation method of the imitative stone material wood-plastic composite panel of high-compatibility, which is characterized in that marble powder to be scattered in
Tetrafluoroethylene monomer, hexafluoropropene monomer uniformly wrap during carrying out polymerisation generation fluorinated ethylene-propylene copolymer
Be overlying on the surface of lignocellulose plant fibre powder, then with Corvic, plasticizer and antioxidant blending extrusion, you can high phase is made
The imitative stone material wood-plastic composite panel of capacitive, preparation are as follows：
（1）Lignocellulose plant fibre is crushed, obtains a length of 10 ~ 100 μm of the fiber powder of diameter, and be added in high-speed mixer, then
Lye is added and obtains the lignocellulose plant fibre powder of surface active after mixed at high speed, drying process；Wherein：Lignocellulose plant fibre
25 ~ 35 parts by weight, 65 ~ 75 parts by weight of lye；
（2）By step（1）The lignocellulose plant fibre powder of obtained surface active is added in reaction kettle, then disperses marble powder
In entering tetrafluoroethylene monomer, hexafluoropropene monomer, initiator, catalyst, heating carries out polymerisation, and hydrophobic fluorination is made
The modified fibre powder that ethylene-propylene copolymer uniformly coats；Wherein：5-10 parts of marble powder, lignocellulose plant fibre powder 66 ~ 72.5
Parts by weight, 15 ~ 18 parts by weight of hexafluoropropene monomer, 0.2 ~ 0.5 parts by weight of initiator, are urged at 12 ~ 15 parts by weight of tetrafluoroethylene monomer
0.3 ~ 0.5 parts by weight of agent；
（3）By step（2）It is 200 ~ 1000 μ of path length that the modified fibre powder of fluorinated ethylene-propylene copolymer cladding obtained, which crushes,
Then m is mixed with Corvic, plasticizer and antioxidant, adds twin-screw extrude extrusion calendaring and obtain height
The Wood plastic boards of compatibility；Wherein：35 ~ 50 parts by weight of modified fibre powder of fluorinated ethylene-propylene copolymer cladding, polyvinyl chloride
48 ~ 64 parts by weight of resin, 0.7 ~ 1.4 parts by weight of plasticizer, 0.3 ~ 0.6 parts by weight of antioxidant.
2. the preparation method of the imitative stone material wood-plastic composite panel of a kind of high-compatibility according to claim 1, it is characterised in that：
Step（1）The lye is the mixed solution of sodium hydroxide and sodium carbonate, and total concentration is no more than 2g/L.
3. the preparation method of the imitative stone material wood-plastic composite panel of a kind of high-compatibility according to claim 1, it is characterised in that：
Step（1）The temperature of the mixed at high speed is 50 ~ 65 DEG C, and rotating speed is 60 ~ 80r/min, and the time is 7 ~ 15min.
4. the preparation method of the imitative stone material wood-plastic composite panel of a kind of high-compatibility according to claim 1, it is characterised in that：
Step（2）The initiator is at least one of benzoyl peroxide, the benzoyl peroxide tert-butyl ester, methyl ethyl ketone peroxide.
5. the preparation method of the imitative stone material wood-plastic composite panel of a kind of high-compatibility according to claim 1, it is characterised in that：
Step（2）The catalyst be metallocene catalyst, transition metal therein be zirconium, titanium or rare metal, ligand be cyclopentadienyl,
One kind in cogongrass base, indenyl.
6. the preparation method of the imitative stone material wood-plastic composite panel of a kind of high-compatibility according to claim 1, it is characterised in that：
Step（2）The temperature of the polymerisation is 110 ~ 130 DEG C, and pressure is 0.3 ~ 0.6MPa, and the time is 1 ~ 3h.
7. the preparation method of the imitative stone material wood-plastic composite panel of a kind of high-compatibility according to claim 1, it is characterised in that：
Step（3）The plasticizer is dioctyl phthalate, BBP(Butyl Benzyl Phthalate, dibutyl phthalate, adjacent benzene two
At least one of formic acid dimethyl ester, diethyl phthalate.
8. the preparation method of the imitative stone material wood-plastic composite panel of a kind of high-compatibility according to claim 1, it is characterised in that：
Step（3）The antioxidant is in molybdenum diisooctyl dithiophosphate, carbamic acid molybdenum, molybdenum dialkyldithiocarbamacompositions
It is at least one.
9. the wood-plastic composite panel that any one of claim 1 ~ 8 preparation method is prepared.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810347496.8A CN108530796A (en) | 2018-04-18 | 2018-04-18 | A kind of imitative stone material wood-plastic composite panel and preparation method of high-compatibility |
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| CN201810347496.8A CN108530796A (en) | 2018-04-18 | 2018-04-18 | A kind of imitative stone material wood-plastic composite panel and preparation method of high-compatibility |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114106358A (en) * | 2020-08-26 | 2022-03-01 | 上海昶法新材料有限公司 | Modified bio-based material, composite material, raw materials, preparation method and application thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114106358A (en) * | 2020-08-26 | 2022-03-01 | 上海昶法新材料有限公司 | Modified bio-based material, composite material, raw materials, preparation method and application thereof |
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