CN103214870B - A kind of preparation method of environment-friendlywood-plastic wood-plastic composite material - Google Patents
A kind of preparation method of environment-friendlywood-plastic wood-plastic composite material Download PDFInfo
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- CN103214870B CN103214870B CN201310156383.7A CN201310156383A CN103214870B CN 103214870 B CN103214870 B CN 103214870B CN 201310156383 A CN201310156383 A CN 201310156383A CN 103214870 B CN103214870 B CN 103214870B
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- 229920001587 Wood-plastic composite Polymers 0.000 title claims abstract description 21
- 239000000463 material Substances 0.000 title claims abstract description 21
- 239000011155 wood-plastic composite Substances 0.000 title claims abstract description 21
- 229920003023 plastic Polymers 0.000 title claims abstract description 12
- 239000004033 plastic Substances 0.000 title claims abstract description 12
- 238000002360 preparation method Methods 0.000 title claims abstract description 9
- 238000000034 method Methods 0.000 claims abstract description 35
- 229940089401 xylon Drugs 0.000 claims abstract description 27
- 239000002699 waste material Substances 0.000 claims abstract description 12
- 239000003755 preservative agent Substances 0.000 claims abstract description 10
- 230000002335 preservative effect Effects 0.000 claims abstract description 10
- 238000001035 drying Methods 0.000 claims abstract description 9
- 239000000284 extract Substances 0.000 claims abstract description 6
- 239000004743 Polypropylene Substances 0.000 claims abstract description 3
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims abstract description 3
- -1 polypropylene Polymers 0.000 claims abstract description 3
- 229920001155 polypropylene Polymers 0.000 claims abstract description 3
- 239000000843 powder Substances 0.000 claims abstract description 3
- 239000010949 copper Substances 0.000 claims description 13
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 12
- 229910052802 copper Inorganic materials 0.000 claims description 12
- 229920001903 high density polyethylene Polymers 0.000 claims description 8
- 239000004700 high-density polyethylene Substances 0.000 claims description 8
- 238000007731 hot pressing Methods 0.000 claims description 8
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 239000005708 Sodium hypochlorite Substances 0.000 claims description 6
- 238000000748 compression moulding Methods 0.000 claims description 4
- 239000008367 deionised water Substances 0.000 claims description 4
- 229910021641 deionized water Inorganic materials 0.000 claims description 4
- 239000006185 dispersion Substances 0.000 claims description 4
- 235000011194 food seasoning agent Nutrition 0.000 claims description 4
- 238000005469 granulation Methods 0.000 claims description 4
- 230000003179 granulation Effects 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 4
- 239000002245 particle Substances 0.000 claims description 4
- 239000008188 pellet Substances 0.000 claims description 4
- 150000001875 compounds Chemical class 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 4
- 238000005202 decontamination Methods 0.000 abstract description 3
- 230000003588 decontaminative effect Effects 0.000 abstract description 3
- 238000010413 gardening Methods 0.000 abstract description 3
- 238000000746 purification Methods 0.000 abstract description 3
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 abstract description 2
- 239000007844 bleaching agent Substances 0.000 abstract description 2
- 239000000460 chlorine Substances 0.000 abstract description 2
- 229910052801 chlorine Inorganic materials 0.000 abstract description 2
- 238000001125 extrusion Methods 0.000 abstract 1
- 238000007493 shaping process Methods 0.000 abstract 1
- 239000012815 thermoplastic material Substances 0.000 abstract 1
- 239000000243 solution Substances 0.000 description 14
- 239000002023 wood Substances 0.000 description 13
- 238000012360 testing method Methods 0.000 description 11
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 10
- 229910052785 arsenic Inorganic materials 0.000 description 10
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 10
- 239000011651 chromium Substances 0.000 description 10
- 229910052804 chromium Inorganic materials 0.000 description 10
- 238000005452 bending Methods 0.000 description 9
- 241000233866 Fungi Species 0.000 description 5
- 230000007797 corrosion Effects 0.000 description 5
- 238000005260 corrosion Methods 0.000 description 5
- 238000000605 extraction Methods 0.000 description 5
- 230000014759 maintenance of location Effects 0.000 description 4
- 230000004580 weight loss Effects 0.000 description 4
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 229910001430 chromium ion Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000013467 fragmentation Methods 0.000 description 2
- 238000006062 fragmentation reaction Methods 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 229920001912 maleic anhydride grafted polyethylene Polymers 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000010298 pulverizing process Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229920001169 thermoplastic Polymers 0.000 description 2
- 239000004416 thermosoftening plastic Substances 0.000 description 2
- 230000002110 toxicologic effect Effects 0.000 description 2
- 231100000027 toxicology Toxicity 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 241000238631 Hexapoda Species 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 241000607479 Yersinia pestis Species 0.000 description 1
- 239000012773 agricultural material Substances 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000002421 anti-septic effect Effects 0.000 description 1
- 239000003637 basic solution Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000002421 cell wall Anatomy 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000009408 flooring Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- WQYVRQLZKVEZGA-UHFFFAOYSA-N hypochlorite Chemical compound Cl[O-] WQYVRQLZKVEZGA-UHFFFAOYSA-N 0.000 description 1
- QWPPOHNGKGFGJK-UHFFFAOYSA-N hypochlorous acid Chemical compound ClO QWPPOHNGKGFGJK-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052752 metalloid Inorganic materials 0.000 description 1
- 150000002738 metalloids Chemical class 0.000 description 1
- 238000005649 metathesis reaction Methods 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000002481 rotproofing Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000009967 tasteless effect Effects 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
- 238000004846 x-ray emission Methods 0.000 description 1
Landscapes
- Chemical And Physical Treatments For Wood And The Like (AREA)
Abstract
The invention discloses a kind of preparation method of environment-friendlywood-plastic wood-plastic composite material, it is characterized in that, by broken for the waste preservative timber of sanitas process also grinds powder xylon, be submerged in chlorine bleach liquor and vibrated under temperature 20-30 DEG C of condition 0.5-1 hour, be then heated to 40 DEG C and extract 3-4 hour; Then by after xylon drying treatment by certain weight ratio and thermoplastic material, maleic anhydride inoculated polypropylene extrusion is shaping makes wood-plastic floor board.The present invention utilizes waste preservative timber to prepare wood plastic composite; make full use of discarded CCA preserving timber and produce outdoor gardening view, material of construction; not only timber resources can be protected; and can decontamination, environment purification; for developing various places economy and saving a large amount of timber, and significant to the enforcement of the strategy of sustainable development.The sheet material prepared by the method has better stronger colour stability and resistance to decadent nature and mechanical property, and is better than commercially available most wood plastic composite.
Description
Technical field
The present invention relates to a kind of wood plastic composite, particularly relate to a kind of preparation method of environment-friendlywood-plastic wood-plastic composite material.
Background technology
When timber uses out of doors, usually need through rotproofing to improve resistance to rotten performance and insect pest performance, its work-ing life at least can improve more than 5 times.CCA(chromated copper arenate) be a kind of Water Soluble Compound sanitas, because it is colourless, tasteless, the feature such as the easy japanning of timber, advantage of lower cost of process, be widely applied in preserving timber process at home and abroad.In China every year through antiseptic about 100,000 m
3in agricultural material, construction timber, gardens material, CCA process timber accounts for 90%, and other sanitas process materials only account for about 10%.In addition, the CCA of China's import in recent years preserving timber amplification is also comparatively large, and every year from import preserving timbers such as the U.S., Canada, Finland, New Zealand, wherein 80 more than % are CCA process material.
CCA preserving timber has certain working life, reaches the process that all will go out of use working life.Due in the main component chromium of CCA sanitas, arsenic and copper, chromium and arsenic are hypertoxic heavy metal or metalloid, and its recovery method has certain potential safety hazard.The CCA preserving timber that current great majority are discarded all adopts the mode of the mode of burying or burning to process, and causes huge waste and the environmental pollution of soil, discarded anticorrosive wood resource, also can cause potential harm to HUMAN HEALTH.
Therefore, if a discarded CCA anticorrosive wood is processed and recycling, discarded CCA anticorrosive wood not only can be made to reduce impact on HUMAN HEALTH and environment, and can turn waste into wealth, there is higher environmental benefit and economic benefit.
CCA waste preservative timber is utilized to carry out the method for recycling at present less, such as publication number is that CN 101597469B application for a patent for invention discloses a kind of synvaren utilizing waste preservative timber to synthesize and preparation method thereof, first the method comprises carries out liquefaction processing by through the preserving timber of sanitas process and phenol under the effect of catalyzer, stopper, obtains preserving timber liquefied substance; Then preserving timber liquefied substance and formaldehyde are carried out polyreaction in basic solution, obtain synvaren.Not yet find to utilize discarded CCA preserving timber to prepare the method for environment-friendlywood-plastic wood-plastic composite material.The present invention utilizes waste preservative timber to prepare wood plastic composite; make full use of discarded CCA preserving timber and produce outdoor gardening view, material of construction; not only timber resources can be protected; and can decontamination, environment purification; for developing various places economy and saving a large amount of timber, and significant to the enforcement of the strategy of sustainable development.The sheet material prepared by the method has better stronger colour stability and resistance to decadent nature and mechanical property, is better than commercially available wood plastic composite.
Summary of the invention
The object of the invention is with the xylon in discarded CCA anticorrosive wood and thermoplastics for main raw material, the operation such as to be mixed, melt extrude by broken, grinding, the metal extracted in discarded CCA anticorrosive wood, height, manufacture environment-friendlywood-plastic wood-plastic composite material.
Technical solution problem of the present invention adopts following technical scheme:
A preparation method for environment-friendlywood-plastic wood-plastic composite material, its feature is, comprises the steps:
(1) by broken for the waste preservative timber of sanitas process also grinds powder xylon, then xylon is loaded in filter bag, be submerged in extracting solution and vibrate under temperature 20-30 DEG C of condition 0.5-1 hour, be then heated to 40 DEG C and extract 3-4 hour; Described extracting solution is aqueous sodium hypochlorite solution, and chlorinity is 8%, and extracting liquid pH value is 7.1<pH<8;
(2) after being taken out by the filter bag of step (1), use deionized water rinsing filter bag, after seasoning, take out xylon; Cross the process of 30-100 mesh sieve and obtain xylon particle, then drying treatment, make the average moisture content of xylon be less than 3%;
(3) by weight the xylon obtained in 50-60% step (2), the high density polyethylene(HDPE) of 35%-48%, the maleic anhydride inoculated polypropylene of 2%-5% being put into miniature high-speed blending dispersion machine, to carry out height mixed;
(4) pellet mixed being put into micro-twin screw extruder carries out blended, temperature 165 DEG C-175 DEG C, revolution 50-65 rpm, blended time 10-20min, extrude, granulation, utilize thermocompressor hot pressing temperature 170 DEG C-180 DEG C, hot pressing time 5-6min, under pressure 3-4Mpa condition, compression molding.
Wherein, the waste preservative timber of the sanitas process described in step (1) refers to the timber adopting chromated copper arenate Water Soluble Compound sanitas (CCA) to process.
Drying treatment in step (2) refers to drying treatment under baking oven 105 DEG C of temperature condition.
Compared with the prior art, beneficial effect of the present invention is embodied in:
The present invention proposes to utilize waste preservative timber to prepare wood plastic composite; make full use of discarded CCA preserving timber and produce outdoor gardening view, material of construction; not only timber resources can be protected; and can decontamination, environment purification; for developing various places economy and saving a large amount of timber, and significant to the enforcement of the strategy of sustainable development.
Because the mixture of copper, chromium and arsenic exists, in the wood cell wall of CCA process, there is abundant solid deposits.And wood surface presents hydrophobicity, contribute to increasing the interface compatibility between timber and thermoplastics, therefore the sheet material that prepared by the inventive method has better stronger colour stability and resistance to decadent nature and mechanical property, be better than commercially available normal wood plastic composite materials, and chromium, arsenic, copper extraction process are simple, percentage extraction is high, and wherein the extraction yield of chromium is more than 94%, the extraction yield of arsenic is more than 95%, and the extraction yield of copper is more than 97%.
The present invention adopts clorox to extract chromium, arsenic, the copper discarded in anticorrosive wood, and chlorine bleach liquor is easily decomposed to form hypochlorous acid, wherein, discharges hypochlorite ion ClO under alkaline environment
-, ClO
-the chromium ion of trivalent (poisonous) can be oxidized to the chromium ion (nontoxic) of sexavalence, along with OH
-consumption, and H
+existence, the pH value in solution is dropped rapidly to less than 4, under the environment of acidity continue with CCA in Cu, there is replacement(metathesis)reaction in As.
Environment-friendlywood-plastic wood-plastic composite material prepared by the present invention can be widely used in the industries such as outdoor flooring, garden landscape, outdoor furniture, has good market outlook.
Embodiment
Below by way of embodiment, explanation is further explained to technical solution of the present invention.
The wood plastic composite bending strength of each embodiment, anti-artificial weathering press the test of GB/T 24137-2009 prescriptive procedure, and the test of GB/T 24508-2009 prescriptive procedure is pressed in resistance to fungi corrosion.
In following examples; discarded CCA anticorrosive wood takes from the discarded floor (specification 90mm is wide × 24mm is thick × 300mm is long) in park, Nanjing; utilize x-ray fluorescence spectrometry method; according to american wood protection association (AWPA) A9-99 testing method, record the chromium of sawdust sample, arsenic, copper original amount be 6.23 milligrams/gram, 5.19 milligrams/gram, 3.28 milligrams/gram.
The explanation carried out the discarded floor used in embodiment is above not the technology limiting to technical solution of the present invention, adopts other discarded CCA anticorrosive wood to be all applicable to technical solution of the present invention, does not affect technique effect of the present invention.
Embodiment 1
1 will discard the fragmentation of CCA anticorrosive wood after, put into pulverizing mill and wear into xylon, loaded by xylon and filter after paper bag, put into the flask containing aqueous sodium hypochlorite solution, aqueous sodium hypochlorite solution chlorinity is 8%, pH=7.1.Flask is put into gyrate shaker, is 200rpm/min at rotating speed, and temperature is the 0.5-1 hour that vibrates under 25 DEG C of conditions, is then heated to 40 DEG C of constant temperature and extracts 3-4 hour.
2, by after filter bag taking-up, use deionized water rinsing filter bag, remove the chromium on filter bag and xylon surface, arsenic and copper and remain extract, after seasoning, take out xylon.Obtain 30 order particles through sieve method process, under baking oven 105 DEG C of temperature condition, carry out 24 hours drying treatment, make the average moisture content of xylon be reduced to less than 3%; After testing in xylon the content of chromium, arsenic, copper be 0.32 milligram/gram respectively, 0.26 milligram/gram, 0.09 milligram/gram, collect washing fluid and extracting solution carries out toxicological harmless process simultaneously.
60% xylon, the high density polyethylene(HDPE) of 35%, the maleic anhydride grafted polyethylene of 5% to be put into miniature high-speed blending dispersion machine by 3 to carry out height and mixes.
The pellet mixed is put into micro-twin screw extruder by 4 to carry out blended, temperature 175 DEG C, revolution 50 rpm, blended time 10min, extrudes, granulation, utilize thermocompressor hot pressing temperature 180 DEG C, under hot pressing time 5min, pressure 4Mpa condition, according to certain mould compression molding.
After tested, the wood plastic composite bending strength of the present embodiment is that 65MPa(GB/T 24137-2009 requires bending strength >=20MPa), in anti-artificial weathering test, bending strength retention rate 92%, colour fastness to light are 5 grades (GB/T 24137-2009 requires that bending strength retention rate >=80%, colour fastness to light are for >=3 grades), and in the corrosion test of resistance to fungi, rate of weight loss≤1%(GB/T 24508-2009 requires rate of weight loss≤24% in the corrosion test of resistance to fungi).
Embodiment 2
1, after discarding the fragmentation of CCA anticorrosive wood, put into pulverizing mill and wear into xylon, loaded by xylon after filtering paper bag, put into the flask containing aqueous sodium hypochlorite solution, aqueous sodium hypochlorite solution chlorinity is 8%, pH=8.Flask is put into gyrate shaker, is 200rpm/min at rotating speed, and temperature is the 0.5-1 hour that vibrates under 30 DEG C of conditions, is then heated to 40 DEG C of constant temperature and extracts 3-4 hour.
2, after filter bag being taken out, after clean with deionized water rinsing, take out after seasoning.100 order particles after sieve method process, under baking oven 105 DEG C of temperature condition, carry out 24 hours drying treatment, the average moisture content of xylon is made to be reduced to less than 3%, after testing in xylon the content of chromium, arsenic, copper be 0.31 milligram/gram respectively, 0.25 milligram/gram, 0.08 milligram/gram, collect washing fluid and extracting solution carries out toxicological harmless process simultaneously.
3,50% xylon, the high density polyethylene(HDPE) of 48%, the maleic anhydride grafted polyethylene of 2% are put into miniature high-speed blending dispersion machine to carry out height and mix.
4, the pellet mixed being put into micro-twin screw extruder carries out blended, temperature 165 DEG C, revolution 65 rpm, blended time 20min, extrudes, granulation, utilize thermocompressor hot pressing temperature 170 DEG C, under hot pressing time 6min, pressure 3Mpa condition, according to certain mould compression molding.
After tested, the wood plastic composite bending strength of the present embodiment is that 59MPa(GB/T 24137-2009 requires bending strength >=20MPa), in anti-artificial weathering test, bending strength retention rate 90%, colour fastness to light are 5 grades (GB/T 24137-2009 requires that bending strength retention rate >=80%, colour fastness to light are for >=3 grades), and in the corrosion test of resistance to fungi, rate of weight loss≤2%(GB/T 24508-2009 requires rate of weight loss≤24% in the corrosion test of resistance to fungi).
Claims (3)
1. a preparation method for environment-friendlywood-plastic wood-plastic composite material, is characterized in that, comprises the steps:
(1) by broken for the waste preservative timber of sanitas process also grinds powder xylon, then xylon is loaded in filter bag, be submerged in extracting solution and vibrate under temperature 20-30 DEG C of condition 0.5-1 hour, be then heated to 40 DEG C and extract 3-4 hour; Described extracting solution is aqueous sodium hypochlorite solution, and chlorinity is 8%, and extracting liquid pH value is 7.1<pH<8;
(2) after being taken out by the filter bag of step (1), use deionized water rinsing filter bag, after seasoning, take out xylon; Cross the process of 30-100 mesh sieve and obtain xylon particle, then drying treatment, make the average moisture content of xylon be less than 3%;
(3) by weight the xylon obtained in 50-60% step (2), the high density polyethylene(HDPE) of 35%-48%, the maleic anhydride inoculated polypropylene of 2%-5% being put into miniature high-speed blending dispersion machine, to carry out height mixed;
(4) pellet mixed being put into micro-twin screw extruder carries out blended, temperature 165 DEG C-175 DEG C, revolution 50-65 rpm, blended time 10-20min, extrude, granulation, utilize thermocompressor hot pressing temperature 170 DEG C-180 DEG C, hot pressing time 5-6min, under pressure 3-4Mpa condition, compression molding.
2. the preparation method of a kind of environment-friendlywood-plastic wood-plastic composite material according to claim 1, is characterized in that, the waste preservative timber of the sanitas process described in step (1) refers to the timber adopting chromated copper arenate Water Soluble Compound sanitas (CCA) to process.
3. the preparation method of a kind of environment-friendlywood-plastic wood-plastic composite material according to claim 1, is characterized in that, the drying treatment in described step (2) refers to drying treatment under baking oven 105 DEG C of temperature condition.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310156383.7A CN103214870B (en) | 2013-04-28 | 2013-04-28 | A kind of preparation method of environment-friendlywood-plastic wood-plastic composite material |
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| CN201310156383.7A CN103214870B (en) | 2013-04-28 | 2013-04-28 | A kind of preparation method of environment-friendlywood-plastic wood-plastic composite material |
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| CN103214870B true CN103214870B (en) | 2015-08-26 |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103589475A (en) * | 2013-11-13 | 2014-02-19 | 天津中材工程研究中心有限公司 | Production method of derived fuel of CCA (chromated copper arsenate) wood hazardous waste |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102140255A (en) * | 2011-04-14 | 2011-08-03 | 浙江工商大学 | Hot-press type wood plastic composite for toy and preparation method thereof |
| US8043399B1 (en) * | 2010-07-15 | 2011-10-25 | Board of Supervisors of Louisiana State University and Agricultural and Mechanical College LSU Inc | Process for rapid microwave-enhanced detoxification of CCA-treated wood |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7160526B2 (en) * | 2003-05-09 | 2007-01-09 | Lin Lianzhen | Process for detoxification of CCA-treated wood |
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2013
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8043399B1 (en) * | 2010-07-15 | 2011-10-25 | Board of Supervisors of Louisiana State University and Agricultural and Mechanical College LSU Inc | Process for rapid microwave-enhanced detoxification of CCA-treated wood |
| CN102140255A (en) * | 2011-04-14 | 2011-08-03 | 浙江工商大学 | Hot-press type wood plastic composite for toy and preparation method thereof |
Non-Patent Citations (4)
| Title |
|---|
| "Factors affecting sodium hypochlorite extraction of CCA from treated wood";E.D.Gezer et al.;《Waste Management》;20090918;第29卷(第12期);第3010,3012页 * |
| "木塑复合材料界面化学改性研究进展";伍波等;《化工新型材料》;20100515;第38卷(第5期);第28-30页 * |
| "界面改性增强塑木复合材料力学性能的研究进展";程青民等;《材料导报》;20111125;第25卷;第433-435，449页 * |
| D.Pascal Kamdem et al.."Properties of wood plastic composites made of recycled HDPE and wood flour from CCA-treated wood removed from service".《Composites Part A:applied science and manufacturing》.2004,第35卷(第3期),第348,352页. * |
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| C06 | Publication | ||
| PB01 | Publication | ||
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