CN101240114B - Composition of environmental protection plastic products and manufacturing method - Google Patents
Composition of environmental protection plastic products and manufacturing method Download PDFInfo
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- CN101240114B CN101240114B CN200710073289XA CN200710073289A CN101240114B CN 101240114 B CN101240114 B CN 101240114B CN 200710073289X A CN200710073289X A CN 200710073289XA CN 200710073289 A CN200710073289 A CN 200710073289A CN 101240114 B CN101240114 B CN 101240114B
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Abstract
The invention relates to a component of an environment-friendly plastic product and manufacturing method thereof, comprising: using couplant to treat with natural mineral, hard charcoal powder, natural plant starch and wood fiber powder, mixing with macromolecule thermoplastic polymer elastic resin and couplant to make polymeric particle, which is mixed with heat-resistant natural flavor ingredient to heat and stir to make flavor master batch, the environment-friendly plastic product with antibacterial function and flavor is prepared by mixing, film blowing and extruding or injection molding. The invention has the advantages of reducing consumption of plastics, toughness, recycling use, conservation of resources, low cost, being buried, being burning with toxic gas, no dioxin, being environment-friendly, with flavor, effectiveness of antibacterial and deodorization.
Description
[affiliated technical field]
The present invention relates to a kind ofly have the plastic prod that can constantly discharge fragrance, and this plastic prod itself is simultaneously with environmentally-friendly plastic product constituent and method of manufacture thereof antibiotic, that compostable does not cause secondary environmental pollution.
[background technology]
The waste of existing plastics is difficult for by microbiological degradation in physical environment or landfill, rots, and in the burning incineration course, can produce a large amount of dense smokes and toxic gas again, causes various environmental pollutions such as air, soil.
The plastic containers method of manufacture of existing tool fragrance is accomplished by following sequence of steps usually; 1. the ultra micron pore hole plastics thing with the same structure body of open cell hole impregnated in the essence, after soaking, makes it to absorb saturated, and becomes fragrant master batch.2. mix with the oily family of aggregating into of same structure body plastics and mix the fragrant master batch uniform mixing of stating, penetrate batching, place Jet forming machine then, have the plastic containers of fragrance with ejaculation to accomplish.
Though aforementioned method of manufacture can make the plastic containers of processing have automatically scentetd benefit, exist following not enough: the activity duration that is subject to material absorption essence in the manufacturing processed is longer, so that improvement place of treating that output can't effectively promote is arranged; In addition, ultra micron pore hole plastics thing is immersed in the essence process for a long time, essence can produce volatilization by nature; And; The plastics thing is sucked essence to state of saturation when ultra micron pore hole, if move into another manufacturing operation flow process will be in fact the time, then the essence in this plastics materials also can be in volatile flow disalignment constantly; Justing think, these cause former material to consume fast and waste virtually, are the high shortcoming of Material Cost.
In view of this, contriver's warp is engaged in the experience of this industry for many years, knows very well the shortcoming place of above-mentioned method of manufacture, is to be absorbed in whole-heartedly to drop into research and development, is adhering to the spirit of not slacking off, and develops the innovative technology of this case all the time, and proposes patented claim.
[summary of the invention]
The object of the invention; Provide the constituent and the method for manufacture of the environmental protection plastic products of a kind of tool fragrance, deodorizing and antibacterial effect; So that having following effect, technology of the present invention promotes: but can effectively reduce quantity of plastics, the toughness recirculation of possessing conventional plastic uses, economizes on resources and effectively reduce manufacturing cost, environment is not caused secondary pollution; Can bury or burn neither meeting toxigenicity gas, no dioxin material, be with characteristic persons such as environmental sounds.
For realizing above-mentioned purpose, the present invention provides a kind of constituent of environmental protection plastic products, comprising: environmental protection polymerization grain, fragrant master batch and plastic raw materials are formed; This environmental protection polymerization grain composition mainly by: several natural mineral matters, plants starch and wooden fine powder, binchotan powder, macromolecular thermoplastic polymer elastomer resin, coupling molecule etc. are according to the mixing particulate state that forms of suitable per-cent; This fragrant master batch is to add that with an amount of environmental protection polymerization grain natural essence material heated and stirred forms, and this natural essence material also can be a kind of Nai Miyin or how rice zinc oxide or how rice titanium oxide or how rice magnetic; This plastic raw materials can be Vilaterm (PE), new LDPE (film grade) (LDPE), linear low density polyethylene (LLDPE), high density polyethylene(HDPE) (HDPE), Vestolen PP 7052 (PP), PS (PS), acrylonitrile-butadiene-phenylethylene (ABS) multipolymer wherein any.
Further, the present invention provides a kind of method of manufacture of environmental protection plastic products, comprising:
Step 1: multiple ultra tiny powders such as natural mineral matter, natural plant starch, the natural phant fine powder of wood and binchotan powder are respectively complied with an amount of percentage; The mixing environmental protection polymerization grain of processing of the macromolecular thermoplastic polymer elastomer resin of matched with proper and couplant again is with as first group of masterbatch; Wherein, the environmental protection polymerization grain size specification of first group of masterbatch set every particle diameter in 2-3 millimetre scope for best.
Step 2: earlier with an amount of environmental protection polymerization grain and natural essence material heated and stirred, as second group of fragrant masterbatch;
Step 3: the fragrant masterbatch of first group of masterbatch, second group and plastic raw materials according to the requirements set suitable proportion Hybrid Heating of moulding product, are adopted the predetermined all kinds of environmentally-friendly plastic finished products of processing of extrusion molding or injection forming method.
Adopt technique scheme, beneficial technical effects of the present invention is:
1. adopt and process plastics by environmental protection polymerization grain, fragrant master batch and plastic raw materials and since wherein environmental protection polymerization grain composition mainly by mixing particles that forms such as several natural mineral matters, plants starch and wooden fine powder, binchotan powder, macromolecular thermoplastic polymer elastomer resin, coupling molecules.Mixing through biodegradable materials such as mineral substance lime carbonate in the environmental protection polymerization grain and starch with plastic raw materials, changed the form of plastics and made it lose the part mechanical property, through it has the advantage of environmental sound after the composting.Fragrant master batch adds that with environmental protection polymerization grain natural essence material heated and stirred forms, and essence is difficult to from environmental protection polymerization grain, volatilize away, has solved the volatility problem of essence.
2, in the constituent of environmental protection plastic products of the present invention, adopt macromolecular thermoplastic polymer elastomer resin, it not only can be brought into play in the course of processing and other speciality that composition Combination is good, ductility is high; After being made into products in kind; Have more the recyclable benefit of system again, in addition, not toxigenicity gas can directly be buried, burned to finished product itself; Tool nontoxicity and non-pollution can not cause secondary pollution person to environment.
3. in the environmental protection polymerization grain composition of the present invention; Through using macromolecular thermoplastic polymer elastomer resin, can reach 50% more than effectively with the percentage composition increase of the fine powder of natural plant wood; To reduce the plastics usage quantity, reach the essence effect of cost cutting.
4, through in environmental protection polymerization grain, adding binchotan; Utilize binchotan to have and to absorb harmful chemical, utilize mikrobe to make its nothing poison deodorization functions; Dehumidifying and damping; Discharge negative ion, characteristics such as purify air can make environmental protection plastic products of the present invention have fresh-keeping, antibiotic, de-odorised effect.
5, through in environmental protection polymerization grain, adding the fine powder of natural phant wood, can alleviate the weight of environmental protection plastic products as required.
, through how using rice zinc oxide, can make product have antibiotic, toughness reinforcing and attrition resistant effect; Use Nai Miyin then can make product possess antibiotic, de-odorised effect.
7. shown in the comparison that subordinate list () arrives (three) environmental protection polymerization of the present invention grain and general plastics; The manufacturing processed of the environmental protection polymerization grain (EPCP) that the present invention uses; The time of no matter all adopting simple general plastics in cooling time of the pressure of heat-up time in any stage, transmission or speed setting, the demoulding etc. is for short, can effectively reduce manufacturing cost and promote the positive benefit of output.
In sum; Adopt the present invention; The toughness recirculation that reduces quantity of plastics, possesses conventional plastic is used, is economized on resources, cost is low, can cover reason, can burn not toxigenicity gas, no dioxin, environmental sound, tool fragrance, deodorizing, antimicrobial effect but have.Technology of the present invention has had industrial applicability, novelty and creativeness, meets three property requirements of patent law.
[description of drawings]
Shown in Figure 1 for the constituent manufacturing process functional diagram of environmental protection plastic products of the present invention.
Shown in Figure 2 is environmental protection polymerization grain manufacturing process functional diagram of the present invention.
Label declaration:
10 environmental protection polymerization grains, 11 ultra tiny powder thing 111 natural mineral matters
The fine powder of 112 natural plant starch, 113 natural plants wood
114 binchotan powder, 12 macromolecular thermoplastic polymer elastomer resins
13 couplants, 131 coupling molecules, 132 lubrication prescription
20 fragrant master batch, 21 heat-resisting natural essence material
30 plastic raw materialss, 40 plastics
[embodiment]
Combine accompanying drawing that preferred embodiment of the present invention is specified as follows at present:
Please consult Fig. 1 and Fig. 2, be the constituent and the manufacturing process functional diagram of a kind of environmental protection plastic products of the present invention.The constituent of environmental protection plastic products of the present invention mainly comprises: 1～50% environmental protection polymerization grain, 10,1～50% fragrant master batch 20 and 20～80% plastic raw materialss 30 form through adding hot milling.The weight percent that aforementioned each composition divides is mainly made the environmentally-friendly plastic product performance of moulding according to institute's desire and is decided.Wherein,
The composition of said environmental protection polymerization grain 10 comprises: the ultra tiny powder thing of number 11, macromolecular thermoplastic polymer elastomer resin 12 and couplant 13 are according to the made particle of weight percent.
Further, the moity of said multiple ultra tiny powder thing 11 comprises: 20～95% natural mineral matters, 1～40% natural plant starch, the fine powder of 1～75% natural wood, 1～50% binchotan powder are formed.Be preferably further again: 30～80% natural mineral matters, 5～30% natural plant starch, the fine powder of 10～70% natural wood and 5～30% binchotan powder.Wherein:
The fine powder 113 of natural plant wood can be the fine powder of characteristic plant such as the fine powder of wood chip or the fine powder of rice husk or the fine powder of straw or the fine powder of corn stalk or the fine powder of bagasse or the fine powder of bean dregs or the fine powder of coconut or other.The advantage of the fine powder of natural plant wood: light specific gravity, increase the plastic prod volume, belong to natural agricultural wastes, obtain convenient economic cheap, nontoxicity nonstaining property, but natural decomposition.But the add-on of the fine powder of natural plant wood too much can reduce the intensity of plastics.
Binchotan powder (hard charcoal) 114 can be bamboo binchotan powder or wooden binchotan powder.The advantage that adds the binchotan powder: light specific gravity, nontoxicity, release negative ion, natural mineral matter, generation far-infrared heat energy, purify air, deodorizing, remove effect such as chlorine residue tool damping.Shortcoming is: the material price cost is high.
Macromolecular thermoplastic polymer elastomer resin 12 (High Molecule Polymer Resin) can adopt thermoplasticity ion cross linkage fluoropolymer resin (lonomer), or ethene one octene or a type alkene polymeric copolymer elastomer.Adopt macromolecular thermoplastic polymer elastomer resin, not only in the course of processing, can bring into play and other speciality that composition Combination is good, ductility is high, after being made into products in kind; Have more the recyclable benefit of system again, in addition, not toxigenicity gas can directly be buried, burned to finished product itself; Burning the back all is that ash is most; Can not produce burnt shape residue, tool nontoxicity and non-pollution can not cause secondary pollution person to environment.
3. in the environmental protection polymerization grain composition of the present invention; Through using macromolecular thermoplastic polymer elastomer resin, can reach 50% more than effectively with the percentage composition increase of the fine powder of natural plant wood; To reduce the plastics usage quantity, reach the essence effect of cost cutting.
Couplant 13 comprises: 1～5% coupling molecule 131 and 1～5% lubrication prescription 132, coupling molecule can be vinyltriethoxysilane or vinyltrimethoxy silane or metatitanic acid fat wherein any.The add-on of coupling molecule after a little while, bad dispersibility, but add when too much increases cost.Lubrication prescription helps out, can be Zinic stearas or calcium stearate or Magnesium Stearate, OPE any.
Adopt above-mentioned material to form, be extruded into the roomy little environmental protection polymerization fine particulate in footpath at 2～3 millimeters (mm) through adding hot milling.
This fragrant master batch 20 comprises environmental protection polymerization grain 10 and heat-resisting natural essence material 21 compositions, and its weight percent is: 20～50% environmental protection polymerization grains, 10,0.05～6% heat-resisting natural essence material 21, homogeneous heating stirs and forms.Wherein, this heat-resisting natural essence material 21 adopts oiliness or wax property or the not volatile spices of mealiness tool, also can be Nai Miyin or how rice zinc oxide how the rice titanium oxide or how the rice magnetic wherein any one or more mix or etc. the material replacement of characteristic.When essence material add-on is very few, the one, adsorptivity is poor, and the 2nd, there is not fragrance.But when essence material add-on is too much, the one, cost is high, and the 2nd, the fragrance overrich should not adopt.
20～80% plastic raw materialss 30 can be Vilaterm (PE), new LDPE (film grade) (LDPE), linear low density polyethylene (LLDPE), high density polyethylene(HDPE) (HDPE), Vestolen PP 7052 (PP), PS (PS), acrylonitrile-butadiene-phenylethylene (ABS) multipolymer wherein any, select plastic raw materials for use according to product rerum natura demand.
In view of the above, above-mentioned composition divides the environmentally-friendly plastic that constitutes, and can carry out modes such as extrusion molding or ejection formation, processes all kinds of plastics 40.
Further, put off until some time later the method for manufacture of a kind of environmental protection plastic products of bright the present invention, its work flow is described below:
Step 1: the kneader temperature is located between 100～130 degree Celsius; Earlier the macromolecular thermoplastic polymer elastomer resin 12 of weight percent 5～30% was mediated 5～15 minutes; After making it uniformly softening; The lubrication prescription 132 of coupling molecule 113,1～5% that adds the ultra tiny powder natural phant fine powder 113 of wood and 1～50% the ultra tiny powder binchotan powder 114,1～5% of 25～95% ultra tiny powder natural mineral matter 111 (lime carbonate), 1～30% ultra tiny powder natural plant starch 112,1～75% again continued mixer kneader after 5～15 minutes; Send into mixing the extruding of screw extruder and process environmental protection aggregated particles shape; This particle diameter is set in 2～3 millimeters (mm), with as first group of masterbatch; Wherein, Aforementioned temperature of carrying out the screw extruder of mixing extruding pelletization is set between 100～180 degree Celsius to best; In addition, the screw extruder can be single-screw extruder or double-screw type extruder, again to adopt two spiral shell formula extruders to be fabricated to the best.
Step 2: the heat-resisting natural essence material 21 of above-mentioned first group of masterbatch being got 20～50% environmental protection polymerization grain 10 and said ratio is with 30～70 degree heated and stirred to 1～5 Celsius hour, as second group of fragrant masterbatch 20; Wherein, the setting range of aforementioned Heating temperature is according to the anti-burning-point adjustment of various spices Heating temperature; And the time of heated and stirred then look the quantity number of first group of masterbatch and decide;
Step 3: manufacture environmental protection sizing material goods 40 with extrusion molding or injection molding method; Its percentage composition comprises: behind 1～50% the first masterbatch and environmental protection polymerization grain 10,1～50% the second group fragrant masterbatch 20 and 20～80% plastic raw materialss, 30 uniform mixing, make all kinds of tool antibacterial and deodourings, can grow timeliness and discharge fragrance, eliminate the environmentally-friendly plastic finished product of peculiar smell to reach deodorizing with 120～220 degree Celsius (optimum temps is set at 170 degree) extrusion or ejection formation.This environmentally-friendly plastic finished product can be various refuse bag, shopping bag, clothing storage bag, bathing cap, raincoat, air-permeable envelope, tNonwovens, textile fibres, toy, furniture daily necessities plastic prod, automobile inside plate, electronic peripheral product, foaming product etc.
Subordinate list has provided use EPCP environmental protection polymerization grain and the relatively reference of general plastics.Can find out that according to this subordinate list the time of no matter all adopting simple general plastics in cooling time of the pressure of heat-up time in any stage, transmission or speed setting, the demoulding etc. is for short, and manufacturing cost reduces, output improves.Add geometries shrink rate and distortion that the EPCP raw material can effectively reduce the moulding article, can shorten die sinking cooling time, increase productivity.
Subordinate list: use EPCP environmental protection polymerization grain and the relatively reference of general plastics:
(1) bag forming is blown in the PE extrusion
Bag forming machine working temperature reference value is blown in the PE extrusion
| Raw material | The charging heating tube | Heating tube | Lay wire | Die head | Die head | Hourly output |
| HDPE raw material 100% | 180℃ | 190℃ | 190℃ | 190℃ | 180℃ | 60kg/H |
| HPCE raw material 50% HDPE raw material 50% | 160℃ | 170℃ | 170℃ | 170℃ | 160℃ | 65kg/H |
(2) ABS ejection formation
ABS Jet forming machine working temperature, pressure, speed, cooling time reference value
| Raw material | Temperature 1 | Temperature 2 | Temperature 3 | Temperature 4 | Pressure | Speed | Hourly output |
| ABS raw material 100% | 230℃ | 225℃ | 210℃ | 200℃ | 95 | 85 | 15sec |
| EPCP |
205℃ | 200℃ | 200℃ | 200℃ | 80 | 70 | 7.5sec |
(3) PS ejection formation
PS Jet forming machine working temperature, pressure, speed, cooling time reference value
| Raw material | Temperature 1 | Temperature 2 | Temperature 3 | Temperature 4 | Pressure | Speed | Hourly output |
| PS raw material 100% | 220℃ | 220℃ | 210℃ | 200℃ | 95 | 85 | 15sec |
| EPCP raw material 30% PS raw material 70% | 200℃ | 200℃ | 200℃ | 195℃ | 80 | 70 | 7sec |
Annotate: add geometries shrink rate and distortion that the EPCP raw material can effectively reduce the moulding article, can shorten die sinking cooling time, increase productivity.
Claims (19)
1. the constituent of an environmental protection plastic products, it is characterized in that comprising: environmental protection polymerization grain, fragrant master batch and plastic material form through adding hot milling; Wherein, this environmental protection polymerization grain comprises: by ultra tiny powder thing, macromolecular thermoplastic polymer elastomer resin and the made particle of couplant.
2. the constituent of environmental protection plastic products according to claim 1 is characterized in that: wherein, the weight percent of said environmental protection polymerization grain is 1～50%, the weight percent of fragrant master batch is 1～50%, the weight percent of plastic raw materials is 20～80%.
3. like the constituent of the said environmental protection plastic products of claim 2, it is characterized in that: wherein, this ultra tiny powder comprises: 20～95% natural mineral matters, 1～40% natural plant starch, the fine powder of 1～75% natural wood, 1～50% binchotan powder are formed.
4. like the constituent of the said environmental protection plastic products of claim 3, it is characterized in that: wherein, this ultra tiny powder comprises: 30～80% natural mineral matters, 5～30% natural plant starch, the fine powder of 10～70% natural wood and 5～30% binchotan powder.
5. like the constituent of the said environmental protection plastic products of claim 4, it is characterized in that: wherein, this couplant comprises the coupling molecule that accounts for gross weight 1～5% and 1～5% lubrication prescription.
6. like the constituent of the said environmental protection plastic products of claim 2, it is characterized in that: wherein, this fragrant master batch adds that by said environmental protection polymerization grain 0.05～6% heat-resisting natural essence material heated and stirred forms.
7. like the constituent of the said environmental protection plastic products of claim to 6, it is characterized in that: wherein, this heat-resisting natural essence material adopts oiliness or wax property or the not volatile spices of mealiness tool.
8. like the constituent of the said environmental protection plastic products of claim 2; It is characterized in that: wherein, this fragrant master batch by said environmental protection polymerization grain add 0.05～6% Nai Miyin or how rice zinc oxide, how rice titanium oxide or how the rice magnetic wherein any one or more Hybrid Heating stir and form.
9. like the constituent of any said environmental protection plastic products of claim 1 to 5; It is characterized in that: wherein, this plastic raw materials can be Vilaterm, new LDPE (film grade), linear low density polyethylene, high density polyethylene(HDPE), Vestolen PP 7052, PS, acrylonitrile-butadiene-phenylethylene multipolymer wherein any.
10. the method for manufacture of an environmental protection plastic products, its processing procedure comprises:
Step 1: macromolecular thermoplastic polymer elastomer resin is with the kneader thermoplastic, adds the evenly mixing environmental protection polymerization grain of processing of natural ultra tiny powder and couplant again, with this as first group of master batch;
Step 2: first group of masterbatch of part added heat-resisting natural essence material heated and stirred, as second group of fragrant masterbatch;
Step 3:, directly process all kinds of moulding products through shaper with fragrant masterbatch of first group of master batch, second group and plastic material uniform mixing.
11. method of manufacture like the said environmental protection plastic products of claim 10; It is characterized in that: wherein, this environmental protection polymerization grain comprises: be made up of 5～30% macromolecular thermoplastic polymer elastomer resins, 20～95% natural mineral matters, 1～40% natural plant starch, the fine powder of 1～75% natural wood, 1～50% binchotan powder, 1～5% coupling molecule and 1～5% lubrication prescription.
12. the method for manufacture like the said environmental protection plastic products of claim 11 is characterized in that: wherein 30～80% natural mineral matters, 5～30% natural plant starch, the fine powder of 10～70% natural wood and 5～30% binchotan powder.
13. the method for manufacture like the said environmental protection plastic products of claim 10 is characterized in that: wherein, the macromolecular thermoplastic polymer elastomer resin of this fabrication steps one is set between 100～130 degree with the thermoplastic temperature of kneader.
14. the method for manufacture like the said environmental protection plastic products of claim 10 is characterized in that: wherein, the environmental protection polymerization grain of this fabrication steps one, with the mixing extruding pelletization of screw extruder, its particle diameter is between 2～3 millimeters (mm) at last.
15. the method for manufacture like the said environmental protection plastic products of claim 14 is characterized in that: wherein, this extruder temperature is set between 100～180 degree Celsius.
16. method of manufacture like the said environmental protection plastic products of claim 10; It is characterized in that: wherein; The percentage composition of this fabrication steps two is: said first group of master batch of 1～50%, 0.05～6% heat-resisting natural essence material form with 30～70 degree heated and stirred Celsius.
17. method of manufacture like the said environmental protection plastic products of claim 10; It is characterized in that: wherein; The percentage composition of this fabrication steps three is: first group of master batch 1～50%, second group of fragrant masterbatch 1～50%, plastic material 20～80% respectively adjust according to the moulding product purposes is different.
18. the method for manufacture like the said environmental protection plastic products of claim 10 is characterized in that: wherein, this heat-resisting natural essence material is a kind of oiliness or wax property or the not volatile spices of mealiness tool.
19. method of manufacture like the said environmental protection plastic products of claim 10; It is characterized in that: wherein, this plastic material can be Vilaterm, new LDPE (film grade), linear low density polyethylene, high density polyethylene(HDPE), Vestolen PP 7052, PS, acrylonitrile-butadiene-phenylethylene multipolymer wherein any.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101735636B (en) * | 2008-11-12 | 2012-03-21 | 福建恒安集团有限公司 | Biodegradation time controlled plastic film and preparation method thereof |
| CN102069671A (en) * | 2009-11-20 | 2011-05-25 | 汉达精密电子(昆山)有限公司 | Method for making multicolor graph with bright shining effect |
| CN101805523B (en) * | 2010-04-06 | 2012-11-14 | 王文广 | Superfine biological powder filling masterbatch and method for preparing same |
| CN101899180A (en) * | 2010-06-30 | 2010-12-01 | 百氏得森(上海)精细化工有限公司 | Fragrant electrical appliance panel, preparation method and use thereof |
| CN102286208B (en) * | 2011-06-24 | 2014-10-01 | 明助实业股份有限公司 | Antibacterial plastic master batch and manufacturing method thereof and antibacterial chopping board prepared from antibacterial plastic master batch |
| WO2014110792A1 (en) * | 2013-01-18 | 2014-07-24 | Zhang Dong | Degradable environment-friendly plastic and preparation method thereof |
| CN104032484A (en) * | 2014-04-26 | 2014-09-10 | 绩溪袁稻农业产业科技有限公司 | Inexpensive nonwoven fabric sound absorption cotton containing rice hulls |
| CN105330956A (en) | 2014-08-07 | 2016-02-17 | 普立万聚合体（上海）有限公司 | Master batch containing heat-sensitive functional additive |
| TWI656157B (en) * | 2017-12-22 | 2019-04-11 | 遠東科技大學 | Plastic wood substrate andmanufacturing method thereof |
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| CN1583849A (en) * | 2004-06-11 | 2005-02-23 | 广东广洋高科技股份有限公司 | Rare earth and calcium and zinc stabilizer for polychlorovinyl and its preparation |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1690112A (en) * | 2004-04-28 | 2005-11-02 | 桂林舒康建材有限公司 | Aromatic multi-texture microporous thermoplastic resin wood-imitating materials and wood texture forming process |
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