CN103725026B - Trinity Wood-plastic material that a kind of method of meeting again is produced and preparation method thereof - Google Patents
Trinity Wood-plastic material that a kind of method of meeting again is produced and preparation method thereof Download PDFInfo
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- CN103725026B CN103725026B CN201310720436.3A CN201310720436A CN103725026B CN 103725026 B CN103725026 B CN 103725026B CN 201310720436 A CN201310720436 A CN 201310720436A CN 103725026 B CN103725026 B CN 103725026B
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- 239000000463 material Substances 0.000 title claims abstract description 63
- 239000004033 plastic Substances 0.000 title claims abstract description 52
- 229920003023 plastic Polymers 0.000 title claims abstract description 52
- 238000000034 method Methods 0.000 title claims abstract description 47
- 238000002360 preparation method Methods 0.000 title claims abstract description 24
- 239000002023 wood Substances 0.000 claims abstract description 45
- 239000000843 powder Substances 0.000 claims abstract description 44
- 239000004793 Polystyrene Substances 0.000 claims abstract description 43
- 229920002223 polystyrene Polymers 0.000 claims abstract description 43
- 238000003756 stirring Methods 0.000 claims abstract description 34
- 229920003048 styrene butadiene rubber Polymers 0.000 claims abstract description 34
- 239000002904 solvent Substances 0.000 claims abstract description 25
- 238000002156 mixing Methods 0.000 claims abstract description 16
- 238000001914 filtration Methods 0.000 claims abstract description 14
- 238000004519 manufacturing process Methods 0.000 claims abstract description 13
- 150000004945 aromatic hydrocarbons Chemical class 0.000 claims abstract description 7
- 239000000243 solution Substances 0.000 claims description 54
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 45
- 239000002994 raw material Substances 0.000 claims description 25
- 239000000203 mixture Substances 0.000 claims description 19
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 18
- 239000002245 particle Substances 0.000 claims description 14
- 238000004064 recycling Methods 0.000 claims description 14
- 239000012065 filter cake Substances 0.000 claims description 12
- 239000000706 filtrate Substances 0.000 claims description 12
- 239000013557 residual solvent Substances 0.000 claims description 12
- 239000007787 solid Substances 0.000 claims description 7
- 239000003795 chemical substances by application Substances 0.000 claims description 6
- 238000005352 clarification Methods 0.000 claims description 6
- 239000011259 mixed solution Substances 0.000 claims description 6
- 238000001556 precipitation Methods 0.000 claims description 6
- 238000013517 stratification Methods 0.000 claims description 6
- 239000000126 substance Substances 0.000 claims description 6
- 238000006073 displacement reaction Methods 0.000 claims description 5
- 239000000470 constituent Substances 0.000 claims description 3
- 230000007613 environmental effect Effects 0.000 abstract description 4
- 229920001971 elastomer Polymers 0.000 abstract description 3
- 239000005060 rubber Substances 0.000 abstract description 3
- 238000001308 synthesis method Methods 0.000 abstract description 3
- 239000008187 granular material Substances 0.000 abstract description 2
- 239000007791 liquid phase Substances 0.000 abstract description 2
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 23
- 239000000178 monomer Substances 0.000 description 7
- 229920000642 polymer Polymers 0.000 description 7
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 6
- 239000002699 waste material Substances 0.000 description 6
- 238000006116 polymerization reaction Methods 0.000 description 5
- 230000003068 static effect Effects 0.000 description 5
- 239000003086 colorant Substances 0.000 description 4
- 239000004567 concrete Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000000049 pigment Substances 0.000 description 4
- 125000003944 tolyl group Chemical group 0.000 description 4
- 150000001298 alcohols Chemical class 0.000 description 3
- 239000012752 auxiliary agent Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 239000013502 plastic waste Substances 0.000 description 3
- 229920001587 Wood-plastic composite Polymers 0.000 description 2
- 239000000084 colloidal system Substances 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 229920006327 polystyrene foam Polymers 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000000979 retarding effect Effects 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 239000011155 wood-plastic composite Substances 0.000 description 2
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 239000012745 toughening agent Substances 0.000 description 1
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- Compositions Of Macromolecular Compounds (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
The invention discloses trinity Wood-plastic material of a kind of method production of meeting again and preparation method thereof, polystyrene regenerated granule aromatic hydrocarbon solvent is selected to be mixed with certain density solution, simultaneously by rubber as styrene-butadiene rubber(SBR) homogeneous solvent is configured to certain density solution, these two kinds of solution are converted in proportion the abundant dispersed with stirring of mixing solutions evenly after, add wood powder, meet again, displacer is added after reunion completes, thing of meeting again under strong stirring folds from solvent, liquid phase is discharged through press filtration, the reunion three-in-one material of obtained non-volatile part, the technical performance index of obtained Wood-plastic material all can reach the performance index preparing Wood-plastic material with synthesis method, there is cost low, environmental protection and wood powder add-on can reach the advantage of more than 70%, this material can carry out relief door through overstocked forming process means, floor, the productions such as sheet material.
Description
Technical field
The present invention relates to a kind of Wood-plastic material and preparation method thereof, trinity Wood-plastic material of particularly a kind of method production of meeting again and preparation method thereof.
Background technology
Wood-plastic material is a class One's name is legion, technical maturity, broad-spectrum material, conventional production methods is based on monomer polymerization, main production process is: adopt raw material monomer to produce polymer with the reaction of long period under given conditions, carry out mixing with stopping composition wood powder again and could form Wood-plastic material, the addition of the Wood-plastic material wood powder of such production is maximum below 50%, there is production cost high, the shortcomings such as the production cycle is long.
Application publication number is CN103275652A, date of publication is the patent on September 4th, 2013, disclose a kind of with waste polystyrene foam and wood powder for the method for tackiness agent prepared by raw material, be that waste polystyrene foam is dissolved in toluene, then add wood powder and directly prepare a kind of tackiness agent; Application publication number is CN102153820A, date of publication is the patent on August 17th, 2011, disclose a kind of preparation method of flame retarding styrene polymer composite material, be utilize in the styrene polymer of recovery to add fire retardant, smoke suppressant and toughener, adopt extrusion by melting to prepare flame retarding styrene polymer composite material; Application publication number is CN101982488A, date of publication is the patent on March 2nd, 2011, disclose a kind of wood plastic composite and preparation method thereof, that thermoplastic high polymer and wood powder are mixed in an extruder, after melting, be expressed in the mould of the non-woven laid in advance, then obtain through compression molding; Publication number is CN101143952A, and publication date is the patent on March 19th, 2008, discloses a kind of flame-proof smoke-inhibiting wood-plastic composite material, is also to be obtained by forcing machine melting; Publication number is CN1500830A, and publication date is on June 2nd, 2004, discloses a kind of polystyrene plastic wood sheet, comprises polystyrene, wood powder and auxiliary agent, adopts scorification to obtain.Reunion method is not also adopted to produce the relevant report of polystyrene Wood-plastic material at present.
Summary of the invention
Object of the present invention overcomes the deficiencies in the prior art, provides a kind of and can add cheap raw material wood powder in a large number to reclaim plastic waste for main raw material, has high-performance trinity Wood-plastic material that cost is low, a kind of method of meeting again of environmental protection is produced and preparation method thereof.
For reaching above goal of the invention, the technical scheme adopted: the preparation method of the trinity Wood-plastic material that a kind of method of meeting again is produced, it is characterized in that: successively through following steps: the dissolving of styrene-butadiene rubber(SBR), the dissolving of regenerated polystyrene, mix, add wood powder, homogenous disperse, reunion, displacement, the trinity Wood-plastic material that obtained reunion method is produced.
Below the further improvement to technique scheme:
The proportioning of raw material is: 1 part, styrene-butadiene rubber(SBR), regenerated polystyrene 5.0-6.5 part, wood powder 15-18 part.
The proportioning of preferred feedstock is: 1 part, styrene-butadiene rubber(SBR), regenerated polystyrene 6.0 parts, wood powder 17 parts.
Described homogenous disperse, reunion step are: use the mixed solution of sodium hydroxide and methyl alcohol as catalyzer, regulate about PH=7.5, adopt static shear principle, make mixture reach homogenous disperse, complete reunion, reunion process will last 2 hours.
Described displacement step: having met again first adds alcohols displacer, strong stirring 0.5 hour afterwards, then polymkeric substance folds from solution with poly-shape precipitation; Press filtration is separated liquid-solid, filtrate stratification, respectively recycling design and displacer, filter cake adds alcohols displacer and again replaces once, removes residual solvent, press filtration again, filtrate merging treatment as far as possible, filter cake residual solvent, below 5%, obtains reunion trinity Wood-plastic material.
Displacer add-on is 1.14 times of raw material gross weight.
The dissolving step of described styrene-butadiene rubber(SBR): join after styrene-butadiene rubber(SBR) being ground into the particle of 1-5mm in aromatic hydrocarbon solvent, in stirring at room temperature solution 6 hours, solution was transparent, clarification shape.
The dissolving step of described regenerated polystyrene: add in aromatic hydrocarbon solvent by regenerated polystyrene particle, makes solution in 8 hours in stirring at room temperature.
Described mixing step: mixed with the polystyrene solution of preparation by the styrene-butadiene rubber(SBR) solution of preparation, fully stirs and forms uniform mixing solutions; Describedly add wood powder step: in styrene-butadiene rubber(SBR) solution and polystyrene solution, add wood powder after pretreatment, evenly become the colloidal mixture of thickness in stirring at room temperature.
The Wood-plastic material that the preparation method of trinity Wood-plastic material that method of meeting again is produced obtains, its technical performance index is as follows: fugitive constituent: 0; Softening temperature: 220 ± 10 DEG C; Volume density: 1.1g/cm
3; Loose density: 0.4g/cm
3; Folding strength:>=40Kg/cm
2.
Present invention process method is adopted to have the following advantages:
1, cost is low: the reunion trinity Wood-plastic material obtained with the present invention, and compared with preparing Wood-plastic material with employing monomer synthesize, owing to using the polystyrene reclaimed, and preparation technology is simple, and eliminate the processes such as synthesis, therefore cost reduces greatly;
2, environmental protection: present invention process method adopts and reclaims plastic waste is main raw material, cheap raw material wood powder can be added in a large number, effectively make use of a large amount of waste polystyrenes that city produces, make rational use of resources and alleviate the pollution that waste causes, the high-performance trinity Wood-plastic material that obtained a kind of method of meeting again is produced, can be applicable to the production of relief door, floor, sheet material, there is good environmental-protection function;
3, improve the addition of wood powder in Wood-plastic material: the addition of the Wood-plastic material wood powder adopting monomer polymerization method to produce is maximum below 50%, and the meet again addition of method wood powder of the present invention can reach and brings up to 70%, obtained Wood-plastic material technical performance index all can reach the performance index preparing Wood-plastic material with synthesis method.
Embodiment
Below the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein is only for instruction and explanation of the present invention, is not intended to limit the present invention.
Described reunion method is different from conventional monomer polymerization, is polymer raw is first dissolved with solvent, then carries out the method that regroups; The described trinity refers to the polymerization process jointly participated in rubber, recovery polystyrene, wood powder three kinds of raw materials.
Operational path of the present invention is: select polystyrene regenerated granule aromatic hydrocarbon solvent to be mixed with certain density solution, simultaneously by rubber as butadiene-styrene rubber or cis-butadiene cement homogeneous solvent are configured to certain density solution, these two kinds of solution are converted in proportion the abundant dispersed with stirring of mixing solutions evenly after, add wood powder, macroscopically see that progressively forming even thickness is colloid mixture, from microcosmic colloid molecules wood powder surface and particle endoporus adsorption under mutually overlap by long chain molecule the cancellated complex body be wound centered by particle, this process is met again process exactly.The displacement auxiliary agent of solvent equivalent is added after having met again, described displacer is that alcohols displacer is as methyl alcohol, thing of meeting again under strong stirring folds from solvent, liquid phase is discharged through press filtration, obtaining solid formation is the reunion three-in-one material containing a small amount of solvent, then through heat treated, by contained solvent, auxiliary agent volatilization, can obtain the reunion three-in-one material of non-volatile part, this material can carry out the productions such as relief door, floor, sheet material through overstocked forming process means.
Embodiment 1
The proportioning raw materials that reunion trinity Wood-plastic material adopts is: 1 part, styrene-butadiene rubber(SBR), regenerated polystyrene 5 parts, wood powder 15 parts, and concrete preparation process is as follows:
(1) dissolving of styrene-butadiene rubber(SBR)
Add in 500g solvent after 500g styrene-butadiene rubber(SBR) being ground into the particle of 1-5mm, described solvent is toluene, and in stirring at room temperature solution 6 hours, solution was transparent, clarification shape, for subsequent use;
(2) dissolving of regenerated polystyrene
2500g regenerated polystyrene particle is added in 7500g toluene solvant, within 8 hours, makes solution in stirring at room temperature, for subsequent use;
(3) mix
Polystyrene solution prepared by styrene-butadiene rubber(SBR) solution step (1) prepared and step (2) mixes, and fully stirs and forms uniform mixing solutions;
(4) wood powder is added
In above-mentioned mixing solutions, add 7500g wood powder after pretreatment, evenly become the colloidal mixture of thickness in stirring at room temperature;
(5) homogenous disperse, reunion
With the mixed solution of sodium hydroxide and methyl alcohol as catalyzer, regulate about PH=7.5, adopt static shear principle, make mixture reach homogenous disperse, complete reunion, reunion process will last 2 hours;
(6) replace
Met again and first added 12000g displacer afterwards, displacer add-on is 1.14 times of raw material gross weight, and employing methyl alcohol is displacer, strong stirring 0.5 hour, then polymkeric substance folds from solution with poly-shape precipitation; Press filtration is separated liquid-solid, filtrate stratification, recycling design and displacer respectively, filter cake adds 6000g displacer and again replaces once, removes residual solvent as far as possible, again press filtration, filtrate merging treatment, recycling design and displacer are in order to reuse again respectively, and filter cake residual solvent, below 5%, can evaporate recycling design in a heated condition, after part to be evaporated all steams, obtain reunion trinity Wood-plastic material.
In reunion process, can add the reunion trinity Wood-plastic material that different pigment can be made into different colours, obtained color can adjust arbitrarily.
Embodiment 2
The proportioning raw materials that reunion trinity Wood-plastic material adopts is: 1 part, styrene-butadiene rubber(SBR), regenerated polystyrene 5.5 parts, wood powder 16 parts, and concrete preparation process is as follows:
(1) dissolving of styrene-butadiene rubber(SBR)
Add in 500g solvent after 500g styrene-butadiene rubber(SBR) being ground into the particle of 1-5mm, described solvent is toluene, and in stirring at room temperature solution 6 hours, solution was transparent, clarification shape, for subsequent use;
(2) dissolving of regenerated polystyrene
2750g regenerated polystyrene particle is added in 8250g toluene solvant, within 8 hours, makes solution in stirring at room temperature, for subsequent use;
(3) mix
Polystyrene solution prepared by styrene-butadiene rubber(SBR) solution step (1) prepared and step (2) mixes, and fully stirs and forms uniform mixing solutions,
(4) wood powder is added
In above-mentioned mixing solutions, add 8000g wood powder after pretreatment, evenly become the colloidal mixture of thickness in stirring at room temperature,
(5) homogenous disperse, reunion
With the mixed solution of sodium hydroxide and methyl alcohol as catalyzer, regulate about PH=7.5, adopt static shear principle, make mixture reach homogenous disperse, complete reunion, reunion process will last 2 hours;
(6) replace
Met again and first added 12825g displacer afterwards, displacer add-on is 1.14 times of raw material gross weight, and employing methyl alcohol is displacer, strong stirring 0.5 hour, then polymkeric substance folds from solution with poly-shape precipitation; Press filtration is separated liquid-solid, filtrate stratification, recycling design and displacer respectively, filter cake adds 6413g displacer and again replaces once, removes residual solvent as far as possible, again press filtration, filtrate merging treatment, recycling design and displacer are in order to reuse again respectively, and filter cake residual solvent, below 5%, can evaporate recycling design in a heated condition, after part to be evaporated all steams, obtain reunion trinity Wood-plastic material.
In reunion process, can add the reunion trinity Wood-plastic material that different pigment can be made into different colours, obtained color can adjust arbitrarily.
Embodiment 3
The proportioning raw materials that reunion trinity Wood-plastic material adopts is: 1 part, styrene-butadiene rubber(SBR), regenerated polystyrene 6 parts, wood powder 17 parts, and concrete preparation process is as follows:
(1) dissolving of styrene-butadiene rubber(SBR)
Add in 500g solvent after 500g styrene-butadiene rubber(SBR) being ground into the particle of 1-5mm, described solvent is toluene, and in stirring at room temperature solution 6 hours, solution was transparent, clarification shape, for subsequent use;
(2) dissolving of regenerated polystyrene
3000g regenerated polystyrene particle is added in 9000g toluene solvant, within 8 hours, makes solution in stirring at room temperature, for subsequent use;
(3) mix
Polystyrene solution prepared by styrene-butadiene rubber(SBR) solution step (1) prepared and step (2) mixes, and fully stirs and forms uniform mixing solutions,
(4) wood powder is added
In above-mentioned mixing solutions, add 8500g wood powder after pretreatment, evenly become the colloidal mixture of thickness in stirring at room temperature,
(5) homogenous disperse, reunion
With the mixed solution of sodium hydroxide and methyl alcohol as catalyzer, regulate about PH=7.5, adopt static shear principle, make mixture reach homogenous disperse, complete reunion, reunion process will last 2 hours;
(6) replace
Met again and first added 13680g displacer afterwards, displacer add-on is 1.14 times of raw material gross weight, and employing methyl alcohol is displacer, strong stirring 0.5 hour, then polymkeric substance folds from solution with poly-shape precipitation; Press filtration is separated liquid-solid, filtrate stratification, recycling design and displacer respectively, filter cake adds 6840g displacer and again replaces once, removes residual solvent as far as possible, again press filtration, filtrate merging treatment, recycling design and displacer are in order to reuse again respectively, and filter cake residual solvent, below 5%, can evaporate recycling design in a heated condition, after part to be evaporated all steams, obtain reunion trinity Wood-plastic material.
In reunion process, can add the reunion trinity Wood-plastic material that different pigment can be made into different colours, obtained color can adjust arbitrarily.
Embodiment 4
The proportioning raw materials that reunion trinity Wood-plastic material adopts is: 1 part, styrene-butadiene rubber(SBR), regenerated polystyrene 6.5 parts, wood powder 18 parts, and concrete preparation process is as follows:
(1) dissolving of styrene-butadiene rubber(SBR)
Add in 500g solvent after 500g styrene-butadiene rubber(SBR) being ground into the particle of 1-5mm, described solvent is toluene, and in stirring at room temperature solution 6 hours, solution was transparent, clarification shape, for subsequent use;
(2) dissolving of regenerated polystyrene
3250g regenerated polystyrene particle is added in 9750g toluene solvant, within 8 hours, makes solution in stirring at room temperature, for subsequent use;
(3) mix
Polystyrene solution prepared by styrene-butadiene rubber(SBR) solution step (1) prepared and step (2) mixes, and fully stirs and forms uniform mixing solutions;
(4) wood powder is added
In above-mentioned mixing solutions, add 9000g wood powder after pretreatment, evenly become the colloidal mixture of thickness in stirring at room temperature;
(5) homogenous disperse, reunion
With the mixed solution of sodium hydroxide and methyl alcohol as catalyzer, regulate about PH=7.5, adopt static shear principle, make mixture reach homogenous disperse, complete reunion, reunion process will last 2 hours;
(6) replace
Met again and first added 14535g displacer afterwards, displacer add-on is 1.14 times of raw material gross weight, and employing methyl alcohol is displacer, strong stirring 0.5 hour, then polymkeric substance folds from solution with poly-shape precipitation; Press filtration is separated liquid-solid, filtrate stratification, recycling design and displacer respectively, filter cake adds 7268g displacer and again replaces once, removes residual solvent as far as possible, again press filtration, filtrate merging treatment, recycling design and displacer are in order to reuse again respectively, and filter cake residual solvent, below 5%, can evaporate recycling design in a heated condition, after part to be evaporated all steams, obtain reunion trinity Wood-plastic material.
In reunion process, can add the reunion trinity Wood-plastic material that different pigment can be made into different colours, obtained color can adjust arbitrarily.
Through test of many times, proportioning raw materials is 1 part, styrene-butadiene rubber(SBR), regenerated polystyrene 5.0-6.5 part, wood powder 15-18 part, all can prepare the raw material meeting production safety door, floor, sheet material, but proportioning raw materials is 1 part, styrene-butadiene rubber(SBR), regenerated polystyrene 6.0 parts, be preferred embodiment during wood powder 17 parts, the performance index of product technologies produced is best.
The reunion trinity Wood-plastic material that above-described embodiment is obtained detects, and its technical performance index is as follows:
Fugitive constituent: 0
Softening temperature: 220 ± 10 DEG C
Volume density: 1.1g/cm
3
Loose density: 0.4g/cm
3
Folding strength:>=40Kg/cm
2
Present invention process method is adopted to have the following advantages:
1, cost is low: the reunion trinity Wood-plastic material obtained with the present invention, and compared with preparing Wood-plastic material with employing monomer synthesize, owing to using the polystyrene reclaimed, and preparation technology is simple, and eliminate the processes such as synthesis, therefore cost reduces greatly.
2, environmental protection: present invention process method adopts and reclaims plastic waste is main raw material, cheap raw material wood powder can be added in a large number, effectively make use of a large amount of waste polystyrenes that city produces, make rational use of resources and alleviate the pollution that waste causes, the high-performance trinity Wood-plastic material that obtained a kind of method of meeting again is produced, can be applicable to the production of relief door, floor, sheet material, there is good environmental-protection function.
3, improve the addition of wood powder in Wood-plastic material: the addition of the Wood-plastic material wood powder adopting monomer polymerization method to produce is maximum below 50%, and the meet again addition of method wood powder of the present invention can reach and brings up to 70%, obtained Wood-plastic material technical performance index all can reach the performance index preparing Wood-plastic material with synthesis method.
Claims (4)
1. a preparation method for the trinity Wood-plastic material that method of meeting again is produced, is characterized in that: successively through following steps: the dissolving of styrene-butadiene rubber(SBR), the dissolving of regenerated polystyrene, mixing, adds wood powder, homogenous disperse, reunion, displacement, the trinity Wood-plastic material that obtained reunion method is produced;
In the dissolving of described styrene-butadiene rubber(SBR), the dissolving step of regenerated polystyrene, the solvent of employing is aromatic hydrocarbon solvent, and the two solvent phase adopted is same;
The proportioning of raw material is: 1 part, styrene-butadiene rubber(SBR), regenerated polystyrene 5.0-6.5 part, wood powder 15-18 part;
The dissolving step of described styrene-butadiene rubber(SBR): join after styrene-butadiene rubber(SBR) being ground into the particle of 1-5mm in aromatic hydrocarbon solvent, in stirring at room temperature solution 6 hours, solution was transparent, clarification shape;
The dissolving step of described regenerated polystyrene: add in aromatic hydrocarbon solvent by regenerated polystyrene particle, makes solution in 8 hours in stirring at room temperature;
Described mixing step: mixed with the regenerated polystyrene solution of preparation by the styrene-butadiene rubber(SBR) solution of preparation, fully stirs and forms uniform mixing solutions; Describedly add wood powder step: in styrene-butadiene rubber(SBR) solution and regenerated polystyrene solution, add wood powder after pretreatment, evenly become the colloidal mixture of thickness in stirring at room temperature;
Described homogenous disperse, reunion step are: use the mixed solution of sodium hydroxide and methyl alcohol as catalyzer, regulate pH=7.5, make mixture reach homogenous disperse, complete reunion;
Described displacement step: having met again first adds methanol replacement agent, strong stirring 0.5 hour afterwards, then polymkeric substance folds from solution with poly-shape precipitation; Press filtration is separated liquid-solid, filtrate stratification, respectively recycling design and displacer, filter cake adds methanol replacement agent and again replaces once, removes residual solvent, press filtration again, filtrate merging treatment, filter cake residual solvent, below 5%, obtains reunion trinity Wood-plastic material.
2. the preparation method of the trinity Wood-plastic material of a kind of method production of meeting again as claimed in claim 1, is characterized in that: the proportioning of raw material is: 1 part, styrene-butadiene rubber(SBR), regenerated polystyrene 6.0 parts, wood powder 17 parts.
3. the preparation method of trinity Wood-plastic material that produces of a kind of method of meeting again as claimed in claim 1, is characterized in that: described reunion is complete first to add in the step of methanol replacement agent afterwards, and the add-on of methanol replacement agent is 1.14 times of raw material gross weight.
4. the Wood-plastic material that the preparation method of trinity Wood-plastic material that a kind of method of meeting again as claimed in claim 1 is produced obtains, is characterized in that: its technical performance index is as follows: fugitive constituent: 0; Softening temperature: 220 ± 10 DEG C; Volume density: 1.1g/cm
3; Loose density: 0.4g/cm
3; Folding strength:>=40Kg/cm
2.
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| CN103289220A (en) * | 2013-07-03 | 2013-09-11 | 内蒙古大学 | Method for preparing plate material by waste polystyrene foam, waste vegetable fibers and kaoline |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2004331717A (en) * | 2003-04-30 | 2004-11-25 | Univ Nihon | Polystyrene composite using chaff as aggregate and its preparation method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2291021A1 (en) * | 1974-11-12 | 1976-06-11 | Varteressian Gerard | Agglomerated, plastic-bonded material - obtd. by mixing waste fibrous material with resin soln. evaporating solvent, and converting into final product |
| CN1067440A (en) * | 1991-06-03 | 1992-12-30 | 山东纺织工学院 | Utilize a kind of method of waste polystyrene production paint |
| CN102837345A (en) * | 2012-09-14 | 2012-12-26 | 中南林业科技大学 | Preparation method of colored wood-plastic material |
| CN103275652A (en) * | 2013-07-03 | 2013-09-04 | 内蒙古大学 | Method for preparing adhesive by taking waste polystyrene foam and wood powder as raw materials |
| CN103289220A (en) * | 2013-07-03 | 2013-09-11 | 内蒙古大学 | Method for preparing plate material by waste polystyrene foam, waste vegetable fibers and kaoline |
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| CN103725026A (en) | 2014-04-16 |
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