CN108299841A - A kind of preparation method of bamboo-plastic combined furniture-plates and bamboo-plastic combined furniture-plates - Google Patents
A kind of preparation method of bamboo-plastic combined furniture-plates and bamboo-plastic combined furniture-plates Download PDFInfo
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- CN108299841A CN108299841A CN201710835328.9A CN201710835328A CN108299841A CN 108299841 A CN108299841 A CN 108299841A CN 201710835328 A CN201710835328 A CN 201710835328A CN 108299841 A CN108299841 A CN 108299841A
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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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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/06—Biodegradable
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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
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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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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Abstract
The invention discloses a kind of preparation methods of bamboo-plastic combined furniture-plates, include the following steps：(1) modification of raw material：Bamboo powder is modified, modified bamboo powder is obtained；Epoxy resin is modified, modified epoxy is obtained；(2) mixing of raw material：Above-mentioned modified bamboo powder, modified epoxy and PVC, acetate fiber, plasticizer A CR, light stabilizer, UV absorbers, external lubricant, in-lubricant are mixed, mixture A is obtained；(3) extruding pelletization：Said mixture A is subjected to granulation extrusion, obtains bamboo-plastic combined furniture-plates PP Pipe Compound；(4) extrusion molding：Above-mentioned bamboo-plastic combined furniture-plates PP Pipe Compound is added in mold and carries out extrusion molding, obtains bamboo-plastic combined furniture-plates.The preparation method of the present invention is first modified processing to bamboo powder and epoxy resin.Modified obtained modification bamboo powder and modified epoxy thermal stability is good, wearability is good.Bamboo powder is cheap in raw material used, safety and environmental protection.
Description
Technical field
The invention belongs to Functional polymer materials technology fields, relate particularly to a kind of preparation of bamboo-plastic combined furniture-plates
Method, and the bamboo-plastic combined furniture-plates that are prepared using this method.
Background technology
Currently, the world market of furniture-plates is worth more than 50,000,000,000 U.S. dollars.The marketization of bamboo plastic furniture plate can be to alleviate
Global resources (the especially forest reserves) are nervous, reduce environmental pollution and improve resource utilization and make significant contribution.According to U.S.
The plant of Ministry of Energy of state and grain matrix renewable resource technology path planning chart arrive the year two thousand twenty, the basic chemical building material in the whole America
The utilization rate of middle plant base renewable resource material will reach 10%, and this data is up to 50% to the year two thousand fifty.As it can be seen that coming
Derived from the material of the renewable resources such as plant, and bamboo plastic furniture plate by be prospective material scientific development main force.However now such as
It is modern it is most of in the market be that sell is WPC plates, but WPC is there are many defects for being difficult to overcome, need further to improve with
It improves.Such as：(1) timber is mainly incorporated as filler and is used for modified plastics in WPC preparation process, and fundamentally WPC is not
Wood materials, but petroleum material；(2) compatibility between hydrophobic plastics and unmodified, hydrophilic wood materials is very poor,
Cause the mechanical strength of its product relatively low, the tensile strength of usual WPC, bending strength, impact strength are than being not filled by plastics
It is low；(3) extrusion molding of thermoplasticity WPC is difficult, and preparation quality stability is poor, high rejection rate；(4) in WPC plastics ratio compared with
Greatly, high filling or superelevation filling and the product simultaneously again with excellent mechanical performance and apparent cost performance be there is no at present；(5) big absolutely
All employ that Lauxite, phenolic resin etc. are toxic, harmful and there are serious first in the preparation process of most thermosetting property WPC products
The high molecular material of aldehyde discharge.
Invention content
The purpose of the present invention one is to provide a kind of preparation method of bamboo-plastic combined furniture-plates, to achieve the above object, this hair
Bright technical solution is：
A kind of preparation method of bamboo-plastic combined furniture-plates, includes the following steps：
(1) modification of raw material：Bamboo powder is modified processing, obtains modified bamboo powder；Epoxy resin is modified processing,
Obtain modified epoxy；
(2) mixing of raw material：
By above-mentioned modified bamboo powder, modified epoxy and PVC, acetate fiber, plasticizer A CR, light stabilizer, ultraviolet light
Absorbent, external lubricant, in-lubricant are mixed, and mixture A is obtained；
(3) extruding pelletization：
Said mixture A is subjected to granulation extrusion, obtains bamboo-plastic combined furniture-plates PP Pipe Compound；
(4) extrusion molding：
Above-mentioned bamboo-plastic combined furniture-plates PP Pipe Compound is added in mold and carries out extrusion molding, obtains bamboo-plastic combined furniture-plates.
Further, in step (1) bamboo powder modification：Bamboo is crushed, then by bamboo powder, the polychlorostyrene after crushing
Vinyl, reaction promoter, initiator are mixed, and carry out melt modification at being 130-160 DEG C in temperature, obtain modified bamboo
Powder.
Preferably, bamboo powder, Corvic, reaction promoter, initiator parts by weight be：
200 parts of bamboo powders, 40-60 parts of Corvics, 10-15 portions of reaction promoters, 1-2 parts of initiators.
Preferably, the bamboo powder grain size after bamboo crushes is 60-80 mesh.
Further, the modification of step (1) epoxy resin：By solvent, epoxy resin, containing there are two isocyanic acids
Coupling agent, catalyst, the initiator of ester functional group react 8-10 hours at being 60-75 DEG C in temperature, solvent are then removed, in temperature
Degree is to be dried at 30-40 DEG C, obtains modified epoxy.
Preferably, solvent, ordinary epoxy resin, containing there are two the coupling agent of isocyanate functional group, catalyst, initiators
Parts by weight be：
400 parts of solvents, 100 parts of ordinary epoxy resins, 8-10 parts of coupling agent, the 2-3 contained there are two isocyanate functional group
Part catalyst, 0.5-1 parts of initiators.
Preferably, modified bamboo powder, modified epoxy and PVC, acetate fiber, plasticizer A CR, light are steady in step (2)
Determine agent, UV absorbers, external lubricant, in-lubricant parts by weight be：
400-450 parts of modified bamboo powders, 40-50 parts of modified epoxies, 345-380 parts of PVC, 60-80 parts of acetate fibers,
18-24 parts of plasticizer As CR, 10-16 part light stabilizer, 6-7 part UV absorbers, 10-12 especially interior moisten for lubricant, 8-10 part
Lubrication prescription.
Further, the temperature of extruding pelletization is 140-180 DEG C in step (3), and obtained bamboo-plastic combined furniture-plates are special
The grain size of materials particle is 3-5mm.
Further, the temperature of extrusion molding is 150-180 DEG C in step (4)；The width of mold is 120-150cm, thick
Degree is 3-4cm.
Compared with prior art, it is an advantage of the invention that：
The preparation method of the present invention is first modified processing to bamboo powder and epoxy resin.Modified obtained modification bamboo powder heat
Stability is good, and crystallinity is high, improves the structural stability of bamboo powder fiber, and the composite material prepared using modified bamboo powder is improved
The mechanical property of composite material, keeps it more wear-resisting, for a long time using being unlikely to deform, while can also enhance bamboo powder and interlaminar resin
The compatibility on boundary.Modified obtained modified epoxy has good stability, and improves its heat resistance, wearability and water proofing property
Can, and there is excellent cohesiveness.
Extrusion molding is relatively easy in the preparation method of the present invention, and the bamboo-plastic combined furniture-plates quality stability of preparation is good,
High yield rate.
The raw material that the present invention prepares bamboo-plastic combined furniture-plates is not use the poisonous and hazardous glue such as phenolic aldehyde, Lauxite completely
Stick, so formaldehydeless release.Bamboo powder is cheap in raw material used, safety and environmental protection, and its own is degradable, to environment
White pollution will not be caused, and itself can be utilized again, reduce production cost.
The purpose of the present invention two is to provide a kind of bamboo-plastic combined furniture-plates, to achieve the above object, technical side of the invention
Case is：
A kind of bamboo-plastic combined furniture-plates are made using the preparation method of above-mentioned bamboo-plastic combined furniture-plates.
Compared with prior art, it is an advantage of the invention that：
The bamboo-plastic combined furniture-plates being prepared using the preparation method of above-mentioned bamboo-plastic combined furniture-plates in the present invention are had
Excellent weatherable is unlikely to deform by use for a long time, and intensity is higher；It is waterproof and dampproof to have excellent performance, exist for a long time
It is relatively low that deformation rate is impregnated in water；The raw material that bamboo-plastic combined furniture-plates due to preparing the present invention use mainly is modified bamboo powder and changes
Property epoxy resin, bamboo powder and epoxy resin pass through modification, are safety so the bamboo-plastic combined furniture-plates prepared are free of formaldehyde
The product of environmental protection.
Specific implementation mode
Technical solution in the embodiment of the present invention is subjected to clear, complete description below, it is clear that described implementation
Example is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
All other embodiment for being obtained without making creative work of technical staff, belong to the guarantor of the present invention
Protect range.
Melt modification processing is carried out to bamboo powder using double screw extruder in the present embodiment, wherein from feed inlet to discharging
This section of screw rod of mouth is divided into three regions, is transportation section, melt zone and melting section respectively.The temperature of transportation section should not be too high, temperature
The too high material that can influence is in the conveying of this section and the shear action being subject to；Temperature is too low, and screw rod stress is excessive or easy to be stuck.It is defeated
Send the temperature of section generally slightly close to the temperature of melt zone.The temperature of melt zone is too low, and resin partly melts, poor to back segment covering property；Temperature
Du Taigao, resin flowing improve, and temperature refining becomes smaller with shear action, or even high temperature degradation occurs.Melting section, material are refined in this section
Dispersion, forms ideal size and structure.Raw material used according to the invention, the double screw extruder used in the present embodiment
Transportation section temperature is 130-140 DEG C, melt zone temperature is 140-160 DEG C, melting section temperature is 130-150 DEG C.
Extruding pelletization is carried out using dual-screw pelletizer in the present embodiment, the temperature of comminutor controls at 140-180 DEG C, turns
Speed control is at 18-25 revs/min.Bamboo-plastic combined furniture-plates extrusion molding is carried out using dual-screw pelletizer in the present embodiment, is made
At 150-180 DEG C, rotating speed is controlled at 18-25 revs/min the control of grain machine temperature.
Embodiment 1
The preparation method of bamboo-plastic combined furniture-plates, includes the following steps in the present embodiment：
(1) modification of raw material：
Bamboo is ground into the bamboo powder of 60 mesh, then by 200 parts of bamboo powders, 40 parts of Corvics, 10 parts of calcium hydroxides,
1 part of dibutyltin diacetate is mixed, and then adds mixture to double screw extruder and carries out melt modification, obtains modified bamboo
Powder.Wherein, double screw extruder transportation section temperature is 130 DEG C, melt zone temperature is 140 DEG C, melting section temperature is 130 DEG C, double
The engine speed of screw extruder is 18 revs/min, rate of feeding is 300 revs/min.
By the mixture of 400 parts of chlorophenols and dichloroethylene, 100 parts of epoxy resin, 8 parts of methyl diphenylene diisocyanates, 2
Part quaternary ammonium salt, 0.5 part of ammonium persulfate are added in reaction kettle, reacts at being 60 DEG C in temperature 10 hours, then remove chlorophenol with
Dichloroethylene dries at being 30 DEG C in temperature, obtains modified epoxy.
(2) mixing of raw material：
By 400 parts of above-mentioned modified bamboo powders, 40 parts of modified epoxies and 345 parts of PVC, 60 parts of acetate fibers, 18 parts of increasings
Mould agent ACR, 10 parts of calcium-zinc composite stabilizing agents, 6 parts of 2- (2 '--5 '-aminomethyl phenyl of hydroxyl) benzotriazole, 10 parts of stearyl alcohols, 8
The mixture of part Solsperse 2000 and stearic amide is added in kneading machine and is mixed, and obtains mixture A.When mixing, first by raw material
It being added in the mixed machine of heat and carries out batch mixing, then batch mixer speed control is transferred at a high speed, batch mixing 5 minutes in low speed, batch mixing 3 minutes,
Finally batch mixing 10 minutes in cold mixer will be added through overheating the mixture of the machine of mixing batch mixing, obtains mixture A.
(3) extruding pelletization：
Said mixture A is added in dual-screw pelletizer and carries out extruding pelletization, the particle being granulated is by 3mm's
Sieve is screened, and bamboo-plastic combined furniture-plates PP Pipe Compound is obtained.Wherein, at 140 DEG C, rotating speed is controlled 18 for the temperature control of comminutor
Rev/min.
(4) extrusion molding：
It is in 120cm*3cm molds that above-mentioned bamboo-plastic combined furniture-plates PP Pipe Compound, which is added to width * thickness in dual-screw pelletizer,
Extrusion molding is carried out, bamboo-plastic combined furniture-plates are obtained.Wherein, at 150 DEG C, rotating speed is controlled at 18 revs/min the control of comminutor temperature.
Embodiment 2
The preparation method of bamboo-plastic combined furniture-plates, includes the following steps in the present embodiment：
(1) modification of raw material：
Bamboo is ground into the bamboo powder of 80 mesh, then by 200 parts of bamboo powders, 60 parts of Corvics, 15 parts of sodium hydroxides
And the mixture of 2 parts of dialkyl tin dimaleates and two mercaptan tin alkyls is mixed, and then adds mixture to double
Screw extruder carries out melt modification, obtains modified bamboo powder.Wherein, double screw extruder transportation section temperature is 140 DEG C, melt zone temperature
Degree is 160 DEG C, melting section temperature is 150 DEG C, and the engine speed of double screw extruder is 25 revs/min, rate of feeding 400
Rev/min.
By 400 parts of tetrachloro-ethylenes, trichloropropane and acetone, 100 parts of epoxy resin, 10 parts of toluene di-isocyanate(TDI)s and different Buddhist
Your mixture of ketone, the mixture of 3 parts of quaternary ammonium salts and lewis base, 1 part of cetyl trimethylammonium bromide and sodium hydroxide
Mixture is added in reaction kettle, is reacted 8 hours at being 75 DEG C in temperature, is then removed tetrachloro-ethylene, in the case where temperature is 40 DEG C
Drying, obtains modified epoxy.
(2) mixing of raw material：
By 450 parts of above-mentioned modified bamboo powders, 50 parts of modified epoxies and 380 parts of PVC, 80 parts of acetate fibers, 24 parts of increasings
Mould agent ACR, 16 parts of lead salt compound stabilizers, 7 parts of 2- (2 '-hydroxyls -3 ', 5 '-two tertiary phenyl) -5- chlorinations benzotriazole, 12 parts
Glycerin monostearate, 10 parts of glycerin monostearates and stearic mixture are added in kneading machine and are mixed, and must mix
Object A.It when mixing, first adds the raw material into the mixed machine of heat and carries out batch mixing, batch mixer speed control is in low speed, batch mixing 3 minutes, then
It is transferred to high speed, batch mixing 5 minutes finally will be added batch mixing 10 minutes in cold mixer through overheating the mixture of the machine of mixing batch mixing, must mix
Object A.
(3) extruding pelletization：
Said mixture A is added in dual-screw pelletizer and carries out extruding pelletization, the particle being granulated is by 5mm's
Sieve is screened, and bamboo-plastic combined furniture-plates PP Pipe Compound is obtained.Wherein, at 180 DEG C, rotating speed is controlled 25 for the temperature control of comminutor
Rev/min.
(4) extrusion molding：
It is in 150cm*5cm molds that above-mentioned bamboo-plastic combined furniture-plates PP Pipe Compound, which is added to width * thickness in dual-screw pelletizer,
Extrusion molding is carried out, bamboo-plastic combined furniture-plates are obtained.Wherein, at 180 DEG C, rotating speed is controlled at 25 revs/min the control of comminutor temperature.
Embodiment 3
The preparation method of bamboo-plastic combined furniture-plates, includes the following steps in the present embodiment：
(1) modification of raw material：
Bamboo is ground into the bamboo powder of 70 mesh, then by 200 parts of bamboo powders, 50 parts of Corvics, 13 parts of magnesium hydroxides,
The mixture of 1.5 part of two mercaptan tin alkyl and dibutyltin diacetate is mixed, and then adds mixture to twin-screw and squeezes
Go out machine and carry out melt modification, obtains modified bamboo powder.Wherein, double screw extruder transportation section temperature is 135 DEG C, melt zone temperature is
150 DEG C, melting section temperature be 140 DEG C, the engine speed of double screw extruder is 20 revs/min, rate of feeding is 350 revs/min
Clock.
By the mixing of 400 parts of benzene and styrene, 100 parts of epoxy resin, 9 parts of isophorones and hexamethylene diisocyanate
Object, 2.5 parts of Lewis base complexes, 0.7 part of cetyl trimethylammonium bromide are added in reaction kettle, in the case where temperature is 70 DEG C
Then reaction 9 hours removes benzene and styrene, dried at being 35 DEG C in temperature, obtain modified epoxy.
(2) mixing of raw material：
By 430 parts of above-mentioned modified bamboo powders, 45 parts of modified epoxies and 360 parts of PVC, 70 parts of acetate fibers, 20 parts of increasings
Mould the mixture of agent ACR, 13 parts of organotin compound stabilizers and barium salt compound stabilizer, 6.5 parts of 2,4-DihydroxyBenzophenones,
The mixture of 11 parts of butyl stearates, 9 parts of butyl stearates and hydroxy stearic acid is added in kneading machine and is mixed, and obtains mixture
A.When mixing, first adds the raw material into the mixed machine of heat and carry out batch mixing, then batch mixer speed control is adjusted in low speed, batch mixing 3 minutes
To high speed, batch mixing 5 minutes finally will be added batch mixing 10 minutes in cold mixer through overheating the mixture of the machine of mixing batch mixing, obtain mixture
A。
(3) extruding pelletization：
Said mixture A is added in dual-screw pelletizer and carries out extruding pelletization, the particle being granulated is by 4mm's
Sieve is screened, and bamboo-plastic combined furniture-plates PP Pipe Compound is obtained.Wherein, at 160 DEG C, rotating speed is controlled 20 for the temperature control of comminutor
Rev/min.
(4) extrusion molding：
It is in 130cm*4cm molds that above-mentioned bamboo-plastic combined furniture-plates PP Pipe Compound, which is added to width * thickness in dual-screw pelletizer,
Extrusion molding is carried out, bamboo-plastic combined furniture-plates are obtained.Wherein, at 170 DEG C, rotating speed is controlled at 21 revs/min the control of comminutor temperature.
Embodiment 4
The preparation method of bamboo-plastic combined furniture-plates, includes the following steps in the present embodiment：
(1) modification of raw material：
Bamboo is ground into the bamboo powder of 65 mesh, then by 200 parts of bamboo powders, 45 parts of Corvics, 12 parts of aluminium hydroxides,
1 part of dibutyl tin laurate is mixed, and then adds mixture to double screw extruder and carries out melt modification, obtains modification
Bamboo powder.Wherein, double screw extruder transportation section temperature is 138 DEG C, melt zone temperature is 145 DEG C, melting section temperature is 145 DEG C,
The engine speed of double screw extruder is 19 revs/min, rate of feeding is 360 revs/min.
By 400 parts of carbon tetrachloride, 100 parts of epoxy resin, 8 parts of hexamethylene diisocyanates, 2 parts of dimethylformamides, 1
Part 4 bromide is added in reaction kettle, is reacted 9 hours at being 72 DEG C in temperature, carbon tetrachloride is then removed, in temperature
It is to be dried at 37 DEG C, obtains modified epoxy.
(2) mixing of raw material：
By 450 parts of above-mentioned modified bamboo powders, 50 parts of modified epoxies and 350 parts of PVC, 65 parts of acetate fibers, 22 parts of increasings
Mould agent ACR, 12 parts of barium salt compound stabilizers, 6 parts of 2-hydroxy-4-n-octoxybenzophenones, 10 parts of oxidized polyethylene wax and hydroxyl
The stearic mixture of base, 10 parts of ricinoleic acid phthalein amine are added in kneading machine and are mixed, and obtain mixture A.It, first will be former when mixing
Material, which is added in the mixed machine of heat, carries out batch mixing, and then batch mixer speed control is transferred to high speed in low speed, batch mixing 3 minutes, batch mixing 5 divides
Clock finally will be added batch mixing 10 minutes in cold mixer through overheating the mixture of the machine of mixing batch mixing, obtain mixture A.
(3) extruding pelletization：
Said mixture A is added in dual-screw pelletizer and carries out extruding pelletization, the particle being granulated is by 4mm's
Sieve is screened, and bamboo-plastic combined furniture-plates PP Pipe Compound is obtained.Wherein, at 170 DEG C, rotating speed is controlled 23 for the temperature control of comminutor
Rev/min.
(4) extrusion molding：
It is 140cm*3.5cm molds that above-mentioned bamboo-plastic combined furniture-plates PP Pipe Compound, which is added to width * thickness in dual-screw pelletizer,
Middle carry out extrusion molding, obtains bamboo-plastic combined furniture-plates.Wherein, at 165 DEG C, rotating speed is controlled at 23 revs/min the control of comminutor temperature
Clock.
Comparative example 1
Commercially available bamboo plastic furniture plate is made from the following raw materials in parts by weight：
50-55 parts of straw powder, 35-40 parts of animi resin, 12-15 parts of phenolic resin, 5-8 parts of calcium carbonate, chlorinated paraffin 4-6
Part, 3-5 parts of polyvinyl alcohol, 3-4 parts of aerosil, 2-4 parts of aluminium hydroxide, 2-3 parts of graphite powder, 1-2 parts of triethanolamine, third
8-11 parts of triol, 10-13 parts of ethyl alcohol.
By the commercially available bamboo-plastic combined family in the bamboo-plastic combined furniture-plates being prepared by embodiment 1-4 and comparative example 1
Tool plate is tested for the property respectively, obtains following test result：
1, abrasion resistance is tested
According to the GB/T 15036.2-2001's in standard GB/T/T 5036.1~15036.2-2001 solid wooden floor boards
It is required that and regulation produce test specimen：Test specimen paint is mounted on abrasiometer upwardly, and abrasive wheel is rack-mount,
100r is worn away under the conditions of each contact 4.9N ± 0.2N.Wherein, this performance test uses BN706 type paint film abrasion performance instrument
It is tested.Obtain that test result is as follows shown in table：
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Commercially available bamboo plastic furniture plate | |
| Wearing valve/mg | 53 | 60 | 50 | 45 | 200 |
As seen from the above table, the bamboo-plastic combined furniture-plates that 1-4 of the embodiment of the present invention is prepared are superior to city in terms of abrasion
Bamboo plastic furniture plate is sold, illustrates that bamboo plastic furniture plate prepared by method and dispensing through the invention has excellent weatherable,
Use for a long time is unlikely to deform, and intensity is higher.
2, size changing rate is tested
Test furniture-plates are impregnated into 48h in water, measure the deformation ratio of its length of side.The table institute that obtains that test result is as follows
Show：
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Commercially available bamboo plastic furniture plate | |
| Size changing rate | 0.23% | 0.19% | 0.20% | 0.17% | 13% |
As seen from the above table, the bamboo-plastic combined furniture-plates size changing rate that 1-4 of the embodiment of the present invention is prepared is less than commercially available
The size changing rate of bamboo plastic furniture plate illustrates that bamboo-plastic combined furniture-plates prepared by method and dispensing through the invention are waterproof and dampproof
It has excellent performance.
3, content of formaldehyde is tested
Test floor is subjected to content of formaldehyde test, obtains that test result is as follows shown in table：
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Commercially available bamboo plastic furniture plate | Environment | |
| Content of formaldehyde mg/m3 | 0.18 | 0.18 | 0.18 | 0.18 | 0.35 | 0.18 |
Go out as seen from the above table, the bamboo-plastic combined furniture-plates that 1-4 of the embodiment of the present invention is prepared do not contain formaldehyde, are safety
The product of environmental protection.
4, cost compares
The cost for the bamboo-plastic combined furniture-plates that 1-4 is prepared through the embodiment of the present invention be respectively 12 yuan/kg, 10 yuan/
Kg, 15 yuan/kg, 9 yuan/kg, and the raw material of commercially available bamboo plastic furniture plate be 180 yuan/kg, therefore, the prices of raw materials of the invention
It is cheap, it can be used for large-scale mass production.
Preferably, preferred embodiment of the invention is：
The preparation method of bamboo-plastic combined furniture-plates, includes the following steps in the preferred embodiment of the present invention：
(1) modification of raw material：
Bamboo is ground into the bamboo powder of 65 mesh, then by 200 parts of bamboo powders, 45 parts of Corvics, 12 parts of aluminium hydroxides,
1 part of dibutyl tin laurate is mixed, and then adds mixture to double screw extruder and carries out melt modification, obtains modification
Bamboo powder.Wherein, double screw extruder transportation section temperature is 138 DEG C, melt zone temperature is 145 DEG C, melting section temperature is 145 DEG C,
The engine speed of double screw extruder is 19 revs/min, rate of feeding is 360 revs/min.
By 400 parts of carbon tetrachloride, 100 parts of epoxy resin, 8 parts of hexamethylene diisocyanates, 2 parts of dimethylformamides, 1
Part 4 bromide is added in reaction kettle, is reacted 9 hours at being 72 DEG C in temperature, carbon tetrachloride is then removed, in temperature
It is to be dried at 37 DEG C, obtains modified epoxy.
(2) mixing of raw material：
By 450 parts of above-mentioned modified bamboo powders, 50 parts of modified epoxies and 350 parts of PVC, 65 parts of acetate fibers, 22 parts of increasings
Mould agent ACR, 12 parts of barium salt compound stabilizers, 6 parts of 2-hydroxy-4-n-octoxybenzophenones, 10 parts of oxidized polyethylene wax and hydroxyl
The stearic mixture of base, 10 parts of ricinoleic acid phthalein amine are added in kneading machine and are mixed, and obtain mixture A.It, first will be former when mixing
Material, which is added in the mixed machine of heat, carries out batch mixing, and then batch mixer speed control is transferred to high speed in low speed, batch mixing 3 minutes, batch mixing 5 divides
Clock finally will be added batch mixing 10 minutes in cold mixer through overheating the mixture of the machine of mixing batch mixing, obtain mixture A.
(3) extruding pelletization：
Said mixture A is added in dual-screw pelletizer and carries out extruding pelletization, the particle being granulated is by 4mm's
Sieve is screened, and bamboo-plastic combined furniture-plates PP Pipe Compound is obtained.Wherein, at 170 DEG C, rotating speed is controlled 23 for the temperature control of comminutor
Rev/min.
(4) extrusion molding：
It is 140cm*3.5cm molds that above-mentioned bamboo-plastic combined furniture-plates PP Pipe Compound, which is added to width * thickness in dual-screw pelletizer,
Middle carry out extrusion molding, obtains bamboo-plastic combined furniture-plates.Wherein, at 165 DEG C, rotating speed is controlled at 23 revs/min the control of comminutor temperature
Clock.
Example the above is only the implementation of the present invention is not intended to limit the scope of the invention, every to utilize this hair
Equivalent structure or equivalent flow shift made by bright description is applied directly or indirectly in other relevant technology necks
Domain is included within the scope of the present invention.
Claims (10)
1. a kind of preparation method of bamboo-plastic combined furniture-plates, which is characterized in that include the following steps：
(1) modification of raw material：Bamboo powder is modified processing, obtains modified bamboo powder；Epoxy resin is modified processing, must be changed
Property epoxy resin；
(2) mixing of raw material：
By above-mentioned modified bamboo powder, modified epoxy and PVC, acetate fiber, plasticizer A CR, light stabilizer, UV Absorption
Agent, external lubricant, in-lubricant are mixed, and mixture A is obtained；
(3) extruding pelletization：
Said mixture A is subjected to granulation extrusion, obtains bamboo-plastic combined furniture-plates PP Pipe Compound；
(4) extrusion molding：
Above-mentioned bamboo-plastic combined furniture-plates PP Pipe Compound is added in mold and carries out extrusion molding, obtains bamboo-plastic combined furniture-plates.
2. the preparation method of bamboo-plastic combined furniture-plates according to claim 1, which is characterized in that bamboo in the step (1)
The modification of powder：Bamboo is crushed, then mixes the bamboo powder after crushing, Corvic, reaction promoter, initiator
Stirring carries out melt modification at being 130-160 DEG C in temperature, obtains modified bamboo powder.
3. the preparation method of bamboo-plastic combined furniture-plates according to claim 2, which is characterized in that the bamboo powder, polychlorostyrene second
Olefine resin, reaction promoter, initiator parts by weight be：
200 parts of bamboo powders, 40-60 parts of Corvics, 10-15 portions of reaction promoters, 1-2 parts of initiators.
4. the preparation method of bamboo-plastic combined furniture-plates according to claim 2, which is characterized in that after the bamboo crushes
Bamboo powder grain size is 60-80 mesh.
5. the preparation method of bamboo-plastic combined furniture-plates according to claim 1, which is characterized in that step (1) middle ring
The modification of oxygen resin：By solvent, epoxy resin, containing there are two the coupling agent of isocyanate functional group, catalyst, initiators
It is reacted 8-10 hours at being 60-75 DEG C in temperature, then removes solvent, dried at being 30-40 DEG C in temperature, obtain modified epoxy tree
Fat.
6. the preparation method of bamboo-plastic combined furniture-plates according to claim 5, which is characterized in that the solvent, asphalt mixtures modified by epoxy resin
Fat is containing there are two the parts by weight of the coupling agent of isocyanate functional group, catalyst, initiator：
400 parts of solvents, 100 parts of epoxy resin, 8-10 parts containing there are two the coupling agent of isocyanate functional group, 2-3 parts of catalyst,
0.5-1 parts of initiators.
7. the preparation method of bamboo-plastic combined furniture-plates according to claim 1, which is characterized in that institute in the step (2)
State modified bamboo powder, modified epoxy and PVC, acetate fiber, plasticizer A CR, light stabilizer, UV absorbers, outer profit
Lubrication prescription, in-lubricant parts by weight be：
400-450 parts of modified bamboo powders, 40-50 parts of modified epoxies, 345-380 parts of PVC, 60-80 parts of acetate fibers, 18-24
Part plasticizer A CR, 10-16 part light stabilizer, 6-7 parts of UV absorbers, 10-12 especially lubricant, 8-10 part in-lubricant.
8. the preparation method of bamboo-plastic combined furniture-plates according to claim 1, which is characterized in that squeezed in the step (3)
The temperature for going out granulation is 140-180 DEG C, and the grain size of the obtained bamboo-plastic combined furniture-plates PP Pipe Compound particle is 3-5mm.
9. the preparation method of bamboo-plastic combined furniture-plates according to claim 1, which is characterized in that squeezed in the step (4)
It is 150-180 DEG C to go out molding temperature；The width of the mold is 120-150cm, thickness 3-4cm.
10. bamboo-plastic combined made from a kind of preparation method using the bamboo-plastic combined furniture-plates of claim 1-9 any one of them
Furniture-plates.
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1827699A (en) * | 2006-04-03 | 2006-09-06 | 中国科学院广州化学研究所 | Bamboo powder-polyvinyl chloride composite materials and process for preparing same |
| CN107312268A (en) * | 2017-07-31 | 2017-11-03 | 安吉县怡成竹木工艺品厂 | A kind of preparation method of the bamboo-plastic combined furniture-plates of safe and environment-friendly type |
-
2017
- 2017-09-15 CN CN201710835328.9A patent/CN108299841A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1827699A (en) * | 2006-04-03 | 2006-09-06 | 中国科学院广州化学研究所 | Bamboo powder-polyvinyl chloride composite materials and process for preparing same |
| CN107312268A (en) * | 2017-07-31 | 2017-11-03 | 安吉县怡成竹木工艺品厂 | A kind of preparation method of the bamboo-plastic combined furniture-plates of safe and environment-friendly type |
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| Title |
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| 孔萍等: "《塑料材料》", 31 July 2017, 广东高等教育出版社 * |
| 李祖德: "《塑料加工技术应用手册》", 31 October 1997, 中国物资出版社 * |
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