CN1549765A - Method of reprocessing fire-resistant plastics - Google Patents
Method of reprocessing fire-resistant plastics Download PDFInfo
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- CN1549765A CN1549765A CNA028171969A CN02817196A CN1549765A CN 1549765 A CN1549765 A CN 1549765A CN A028171969 A CNA028171969 A CN A028171969A CN 02817196 A CN02817196 A CN 02817196A CN 1549765 A CN1549765 A CN 1549765A
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- flame retardancy
- plastics
- regeneration
- fire
- formed products
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
- B29B17/04—Disintegrating plastics, e.g. by milling
- B29B17/0404—Disintegrating plastics, e.g. by milling to powder
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
- B29B17/04—Disintegrating plastics, e.g. by milling
- B29B2017/0424—Specific disintegrating techniques; devices therefor
- B29B2017/0468—Crushing, i.e. disintegrating into small particles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/0005—Condition, form or state of moulded material or of the material to be shaped containing compounding ingredients
- B29K2105/0026—Flame proofing or flame retarding agents
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
- B29L2031/3055—Cars
- B29L2031/3061—Number plates
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/52—Mechanical processing of waste for the recovery of materials, e.g. crushing, shredding, separation or disassembly
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
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- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
Abstract
A method of processing fire-resistant plastic molded products used in discarded TV casings or the like to reuse them as recycled fire-resistant plastics. A method of reprocessing fire-resistant plastics comprising the steps of pulverizing fire-resistant plastic molded products recovered from wastes containing fire-resistant plastic molded products, and surface-grinding the obtained pulverized products to scrape off 3-30 wt.% of the surface layer. The surface grinding can employ a dry cleaning process for scraping off the surface layer by allowing pulverized products or pulverized products and container walls to collide to one another. Recycled fire-resistant plastics obtained by this method can be used singly or by being blended with unused fire-resistant plastics similar to or dissimilar from the recycled fire-resistant plastics at a weight ratio of 5-95:95-5, and satisfies a UL standard V-0 or V-2 grade.
Description
Technical field
The present invention relates to the regeneration treating method of the flame retardancy plastics of use on discarded household appliances or information equipment etc., more particularly, just relate to the material recirculation of flame retardancy formed products.
Background technology
Information equipments such as household appliances such as television set or computer, printer, duplicator owing to produce heat, from the fireproof viewpoint, use the flame retardancy plastics on parts such as the casing of these equipment, body.As the flame retardancy plastics system formed products that these parts use, after long-term the use, its skin section is owing to ultraviolet ray ageing or thermal losses etc., and originally the physical property of plastics significantly descends.Therefore, become the flame retardancy plastics system formed products that will reclaim from discontinued product uses material recirculation just once again as resin big obstacle.
The skin section of formed products such as casing is not only stained owing to hand dirt and dust etc., also adheres to sealing strip etc., or is sprayed paint once in a while, carry out the such printing of serigraphy, even therefore used formed products is used in regeneration, also, can not find sufficient physical property because these become field trash.
So,, mainly be burning disposal as the processing method of used flame retardancy formed products, carry out oiling by thermal decomposition and handle, fill processing, the flame retardancy plastics are as incombustible agent, contain halogen is incombustible agent etc. more, so burning disposal, and oiling is handled the problem that also exists on the environment.So in Japanese kokai publication hei 12-290424 patent gazette, proposed such method, make the flame retardancy plastics that contain incombustible agent in advance and water or alcohol add thermo-contact, remove incombustible agent, and it is become regenerating resin.In addition, in Japanese kokai publication hei 7-285128 patent gazette, such method has been proposed, promptly for the regeneration with the formed products of filming, combination is carried out break process and is removed processing with employing machinery, chemical with filming of physical means, it is extruded become regenerating resin.Yet, be good if used flame retardancy plastics can be regenerated as the flame retardancy plastics.
Summary of the invention
Problem of the present invention is that the used flame retardancy formed products from recovery such as discarded household appliances or information equipment screening is become regeneration flame retardancy plastics.
Above-mentioned problem is by carrying out pulverization process from the used flame retardancy formed products of recovery such as discarded household appliances or information equipment screening, the crushed material that obtains is carried out the dry type cleaning treatment, and cutting its skin section 3～30 weight % and realize.
Introduce the present invention below in detail.
The flame retardancy formed products of handling (claiming difficulty combustion formed products sometimes) of regenerating among the present invention is to fire formed products by the difficulty of decomposing by hand or machinery decomposition household electrical appliances product abandonment thing or information equipment discarded object etc. take out.Can enumerate the framework that usefulness flame retardancy plastics such as TV shell, computer fuselage, display framework, printer framework and duplicator framework for example form as such difficulty combustion formed products, or the part of this framework parts such as bonnet of television set for example.
The formed products that takes out can be divided into flame retardancy plastics and non-flame retardancy plastics from household appliances discarded object or information equipment discarded object, press plastics variety and flame retardancy grade (V-0, V-2 etc.) screening flame retardancy plastics again.Newer product can be by being engraved in the mark decision tree lipid species on the formed products, and this screening also is not difficult.Used for information or past attempts that producer provides, also can utilize these information.
But, be not thermal decomposition-spectra methods that such formed products can be by the record of TOHKEMY 2000-292350 patent gazette or discrimination tree lipid species such as the difference in specific gravity screening of in the prior art hurdle, putting down in writing, IR reflection spectrometry, incombustible agent have or not with kind etc.Especially, not clear etc. in having or not of halogen incombustible agent, judge that it has or not, screening contains under halogen incombustible agent resin component and the non-situation that contains resin component, preferred fluorescent x-ray analytic approach.
Press the difficulty combustion formed products that resin kind and difficult combustion grade reclaim screening, even adhere to sealing strip, or sprayed paint, it is also harmless to carry out the such printing of serigraphy, but cathode-ray tube, electronic unit, distribution, transformer, heater etc. will thoroughly take out fully.
Regeneration treating method of the present invention carries out break process to the flame retardancy formed products.The big or small preferred average diameter of broken thing is less than or equal to 20mm, thereby does not cause the difficulty that cuts of subsequent processing mesexine portion to increase.Further preferred average diameter is at 1～15mm, preferably preferred 3～10mm.
Here, average diameter be meant under difficulty combustion formed products is the situation of the plate body that produces of the formed products such from casing, the meaning of the average diameter on plane.This break process can adopt the plastic breaker of selling on the market.Produce fine powder during pulverizing and since from skin section produce more, the powder separation that will be not more than 10 screen sizes (メ Star シ ュ, eyelet number) per square inch is for well.
Then, the broken thing that obtains in aforementioned break process carries out surfacing to be handled, and cuts its skin section.Handle by this surfacing, can remove the foreign material on the surface that is present in the broken thing of flame retardancy formed products that from discarded object, reclaims or the layer etc. that wears out.Cut the method preferred dry cleaning treatment of skin section, the collision even crushed material is had an opportunity each other, utilization is with the principle of the skin section abrasion friction of crushed material.For example, can enumerate by crushed material being sent into the abrasion chamber with gases at high pressure, perhaps do not use gases at high pressure that crushed material is sent into the at a high speed abrasion chamber of rotation, by crushed material each other collision or contact the abrasion friction of generation with wall, the dry type cleaning treatment of skiving skin section efficiently.ア イ Application エ Application ジ ニ ア リ Application グ corporate system decontaminating separator (with reference to Japan Patent No. 2553807, No. 2945809, No. 3048283) for example, or the separator of Ha イ モ Application ト company (with reference to No. 3279732, Japan Patent), these devices are recommended as the dry type cleaning processing apparatus owing to the compact conformation processing ease.
Here, the device of putting down in writing in No. 2553807 grade of aforementioned patent is to possess the broken thing crushing that makes the resin forming product that forms resin coating film on the surface by additional compression shock power based on little vibration, thereby peel off resin coating film, and separate the device of the mechanism of filming of being stripped from.At the device of No. 3279732, aforementioned patent record is to possess the broken thing that will form the resin forming product that varnish films on the surface to carry out micro mist broken, on the particle that should pulverize, produce tensile force and shearing force simultaneously, thereby the varnish that adheres to is peeled off, and separated the mechanism of the varnish particle of being stripped from.These devices all are to utilize to film to separate the device of filming selectively with the difference of resin physical property, yet find by adopting these devices can separate the resin surface layer of the nonflammable resin outside filming selectively.This is consider superficial layer aging bigger, and the physical property difference of internal layer or broken-out section so long as utilize the device of this phenomenon, all can be utilized.
Also replace gases at high pressure, use the wet processed of water under high pressure, so but need draining processing practicality lower.Other not talkative easy makes skin section force the method for peeling off with the height vibration for example for crushed material, perhaps handles the method that makes the excision of skin section chemolysis etc. with solvent.These methods can be according to the kind of plastics or the suitable selections such as purposes of regenerate.And the dry type cleaning treatment can realize energy-efficient treatment owing to do not use heat.
In the present invention, as long as cut the skin section of broken thing, do not exist fully up to foreign material or aging layer get final product, but preferably cut 3～30 weight % that handle preceding crushed material, preferred 5～25 weight % are preferably in 7～20 weight %.If less than 3 weight %, possible remaining foreign material and aging layer, if surpass 30%, the discarded object increase has reduced goods and materials recirculation efficient.
And, preferably change the amount of cutting according to the thickness of broken thing, when average thickness is equal to or greater than 2mm, preferred 3～15 weight %, when average thickness during less than 2mm, preferred 15～30 weight %.Can cut 0.1～1.0mm as the average thickness that cuts, preferred 0.2～0.6mm.
Here, the rate that cuts of skin section is A in the weight of the broken thing of handling for surfacing, and after surfacing was handled, when the amount of the powder by 20 screen sizes when being divided into 20 screen sizes with screen cloth was B, with B/A * 100 expressions, this value was preferably 3～30 weight %.At this moment, in the broken thing that provides, preferably do not contain powder by 20 screen sizes.Containing under the situation of powder, it as A and B, is not contained in the calculating.
In addition, the average thickness that cuts is C at the average thickness of the broken thing that provides surfacing to handle, and when the average thickness of the broken thing by 20 screen sizes was not D after surfacing was handled, represents that with C-D this value can be 0.1～1.0mm.
Like this, handle by broken thing being carried out surfacing,, adhere to dust or dust etc. even as the surface element foreign material, or sprayed paint, stick adhesive tape or band, adhere to paper, be printed, adhere to kinds such as bonding agent, also no problem fully, cut surface element, just can obtain best regeneration flame retardancy plastics.
Handle by this surfacing, except foreign material and aging layer, also remove and film or layer such as plated film, the part of non-aging layer such as the disrumpent feelings surface layer that in break process, produces in addition, powder, but select the surfacing treatment conditions, make so non-aging layer not account for and handle the more than half of the powder that produces by surfacing.
Like this, carry out the residual sometimes powder that produces because of surfacing on the broken flame retardancy plastics that surfacing handles, or adhering to the micro mist (dust) that causes because of static etc.Remove these micro mists, use the wind-force cleaning machine to carry out the wind-force cleaning treatment that a spot of micro mist is blown off, or adopt the cleaning machine of the water etc. of dissolution process plastics not to wash the wet clean process of micro mist off, thereby can obtain the flame retardancy plastics of better regenerating.
Like this, the regeneration flame retardancy plastics to obtaining provide stir process, and when carrying out regenerated granule, by this stir process, some quality declines that cause because of the surface aging layer neutralize.Consider by in this regenerated granuleization and the decline of quality, also can relax the described surfacing condition of leading portion more.Just, consider by in the stir process (regenerated granuleization) and the quality of surface aging layer descend, for the described surfacing of leading portion, be dominant eye to remove foreign material, sometimes, 1～5 weight % that also only cuts the crushed material before handling just finishes.Such regeneration flame retardancy plastics and the flame retardancy plastics of usefulness not have the flame retardancy of same level, and mechanical property is slightly poorer than not using the flame retardancy plastics.Therefore, be used under the low situation of requirement of mechanical strength level, these regeneration flame retardancy plastics directly can be utilized with raw material as being shaped again, the flame retardancy of will regenerating plastics be used in discontinued product in the same, during as uses such as casings, in order to improve intensity, can be used the flame retardancy plastics (バ one ジ Application) of the not usefulness of of the same race or xenogenesis.The regeneration flame retardancy plastics of this moment and regeneration flame retardancy plastics and of the same race or xenogenesis be not 5～95 with the preferred ratio that cooperates of flame retardancy plastics: 95～5, further preferred 10～50: 90～50, further preferred 20～40: 80～60 weight ratio.Can find, usually will be not more than regeneration flame retardancy plastics 50 weight % and sneak into and be not less than the regeneration flame retardancy plastics (also claiming the rotten flame retardancy plastics of regenerating) that do not obtain with flame retardancy plastics 50 weight %, with 100% not the flame retardancy plastics of usefulness have the flame retardancy and the mechanical property of equal extent.And, when the flame retardancy plastics of not usefulness not of the same race are cooperated, adopt the combination of good physical behavior, this combination is known.
Regeneration flame retardancy plastics account for the incorporation rate of rotten regeneration flame retardancy plastics when big, physical properties such as MFR (flowability), IZ impact strength and extension at break are relatively poor, tensile yield strength, tensile break strength, bending strength and the modulus of elasticity in static bending and incorporation rate are irrelevant, and be arranged side by side with the flame retardancy plastics of usefulness not.
The method of sneaking into is not particularly limited, and for example can enumerate: the flame retardancy of will regenerating plastic powders and not the flame retardancy plastic powders of usefulness mix to scale, be heated fusion, granular method or the like again by extruder etc.Only can carry out granulating too under the situation of use regeneration flame retardancy plastic powders.
The basic resin of flame retardancy plastics is not set special restriction among the present invention, for example can enumerate: the polyethylene of HIPS, GPPS representative, third rare nitrile-butadiene-styrene terpolymer resin (ABS), polypropylene, polyethylene, polyvinyl chloride etc., also these polymer or mixture.Especially styrene resin HIPS, GPPS, AS, ABS, MBS are used alone or as a mixture as the base resin of the flame retardancy plastics that use in household appliances more, are fit to goods and materials recirculation of the present invention.Especially HIPS, GPPS.
In addition, incombustible agent as flame retardancy plastics of the present invention is not set special restriction, to be that the bromine class incombustible agent of representative, the Phosphorus incombustible agent that is called as no calcium iodide, no chlorine class incombustible agent or the incombustible agent that is referred to as halogen-free class incombustible agent blending use are all applicable with calcium iodide bromine class incombustible agent, also blendings such as mineral-type incombustible agents such as hydroxide inorganic matter can be used.
The flame retardancy that the flame retardancy of the regeneration flame retardancy plastics that obtain among the present invention (comprise rotten regeneration flame retardancy plastics) has V-0 in the UL standard or a V-2 defined is for well.
The specific embodiment
Embodiment 1～2, comparative example 1～2
Use is tested as 30 of the television sets that discarded object is recovered, take off television rear cover, polystyrene (PS) mark and V-O mark are carved with in the inboard that only is chosen in bonnet, the molding powder that is confirmed to be difficult combustion standard is broken into average diameter 6mm (3～10mm surpasses all 95wt%), obtains the crushed material of the flame retardancy plastics of about 20kg.For polystyrene (PS), be HIPS, sneaked into a part of GPPS.
Then, crushed material is carried out being subdivided into 4 parts by each 5kg after dry type mixes carefully, cut skin section by ア イ Application エ Application ジ ニ ア リ Application グ corporate system dry-cleaning machine (decontaminating separator).This device possesses the skin section of putting down in writing and cuts mechanism in aforementioned patent, and, possess the mechanism that automatically discharges the powder that produces.The amount of stripping (grinding rate) that makes skin section changes according to the variation of (the giving little vibration) time of stirring.The grinding rate is calculated according to discharging scrap rate.And dust is by the filter of 20 screen sizes.The grinding rate becomes 1 weight %, 5 weight %, 25 weight %, 35 weight %, and the physical property of the regeneration flame retardancy plastics that obtain is estimated.Evaluation result is as shown in table 1.
Table 1
| Project | Comparative example 1 | Embodiment 1 | Embodiment 2 | Comparative example 2 |
| The grinding rate | 1Wt％ | 5Wt％ | 25Wt％ | 35Wt％ |
| Flame retardancy | V-2 | V-0 | V-0 | V-0 |
| Iz | 5.2 | 6.6 | 6.8 | 6.7 |
| Overall merit | × | ○ | ○ | △ |
When stripping of skin section was insufficient, flame retardancy worsened as seen from Table 1.When stripping of skin section was too much, regenerating resin tailed off, otherwise because to become the skin section powder that the quilt of discarded object strips more, the rate of recovery reduces.
Embodiment 3
Identical with embodiment 1; after will sneaking into the flame retardancy plastics (mixing HIPS, V-0, calcium iodide bromine class incombustible agent) of not usefulness of the same race by regrowth incorporation rate 0,5,10,30,50,75 and 100 weight % by the regeneration flame retardancy plastics that processing that the bonnet (HIPS, V-0) of television set is regenerated obtains; granulating modulates regeneration flame retardancy plastics again.
The regeneration flame retardancy plastics that obtain are measured flame retardancy, all are the V-0 grades.The tensile yield strength of Ce Lianging, tensile break strength, bending strength, the modulus of elasticity in static bending, MFR in addition, the result of IZ impact strength, extension at break is as shown in table 2.
The physical property test condition is tension test: ASTM D-790, experimental condition: 3mm/min, bend test: ASTM D-638, experimental condition: 5mm/min and Iz impact strength: ASTM D-256, experimental condition: wall thickness 6.4mm is with otch.
Table 2
| Regrowth incorporation rate (Wt%) | ?0??????5??????10?????20?????30?????50?????75?????100 |
| Tensile yield strength (Mpa) tensile break strength (Mpa) bending strength (Mpa) modulus of elasticity in static bending (Mpa) extension at break (%) Iz value (kj/m 2) MFR(g/100min) | ?21.4???21.3???21.3???21.1???20.7???20.4???19.6???19.5 ?18.3???18.2???18.2???17.9???17.8???19?????18.3???19.5 ?35.4???35?????35.7???35.4???35.3???35.4???35?????35 ?2040???2040???2079???2069???2050???2079???2040???2050 ?39.3???34.7???34?????32.2???31?????34.4???24.7???27.9 ?7.9????7.9????7.9????7.9????8??????7.6????7.5????6.9 ?14.8???15.2???14.5???15.7???13.6???14.4???12.8???11.8 |
As seen from Table 2, if incorporation rate reaches 50 weight %, have and the flame retardancy plastics mechanical property much at one of usefulness not.
Embodiment 4, comparative example 3
Each difficult combustion PS for selling on the market carries out Sunshine and does wet illumination light fastness test, obtains the result of table 3.
Table 3
| Difficult combustion PS | Irradiation time | Hot strength Mpa | Extensibility % | Iz impact strength KJ/m 2 | Bending strength Mpa | Modulus of elasticity in static bending Mpa |
| CSO (V-O) | 0Hr | 18 | 26 | 9.4 | 32 | 2090 |
| 1000Hr | 19 | 5.9 | 7.8 | 33 | 2200 | |
| Conservation rate | 105 | 23 | 83 | 103 | 105 | |
| J2 (V-2) | 0Hr | 27 | 33 | 4.6 | 47 | 2600 |
| 1000Hr | 29 | 8.5 | 4.5 | 49 | 2710 | |
| Conservation rate | 300 | 26 | 98 | 104 | 104 | |
| HL1 (V-2) | 0Hr | 30 | 19 | 3.7 | 55 | 2950 |
| 1000Hr | 32 | 8.3 | 2.7 | 55 | 3080 | |
| Conservation rate | 106 | 44 | 73 | 100 | 104 |
And the experimental condition that sunshine does wet illumination is carbon: overlength carbon is each 4, carbon black plate temperature up and down: 63 ± 3 ℃, glass filter material: 8 of quartz glass and rain: have.
Then, above-mentioned 1000hr irradiation (is respectively shone 1000hr with single face, two-sided irradiation) after the tension test sample is ground into 5mm following (ア Application ダ one), cut surface element with ア イ Application エ Application ジ ニ ア リ Application グ corporate system dry-cleaning machine, after grinding rate (amount of powder of generation) become 1wt% and 15wt%, the green powder again that stirring obtains makes the test film that carries out once more injection molded, carries out physical property evaluation.The result is illustrated in table 4.And conservation rate is that the numerical value that carries out the flame retardancy plastic resin of the not usefulness before the light fastness test is 100 o'clock value.
Table 4
| Difficult combustion PS | The grinding rate | Extensibility % (conservation rate %) |
| CSO (V-O) | ????1％ | ??22(85) |
| ????15％ | ??26(100) | |
| J2 (V-2) | ????1％ | ??26(81) |
| ????15％ | ??32(97) | |
| HL1 (V-2) | ????1％ | ??13(68) |
| ????15％ | ??19(100) |
As mentioned above, the grinding rate is the resin of 15wt% and the physical property of the flame retardancy plastic material of usefulness not compares, and is not inferior.
Handle flame retardancy formed products discarded object, can become regeneration flame retardancy plastics.These regeneration flame retardancy plastics can be separately or are mixed use with fresh flame retardancy plastics, can be used further to same purposes.
Claims (9)
1. the regeneration treating method of flame retardancy plastics, it is characterized in that, the flame retardancy formed products that will reclaim from the discarded object that comprises the flame retardancy formed products carries out break process, and the processing of the surfacing of the broken thing that obtains, and cuts its skin section 3～30 weight %.
2. as the regeneration treating method of the flame retardancy plastics of claim 1 record, it is characterized in that, handle, cut 0.1～1.0mm of its skin section by the surfacing of broken thing.
3. as the regeneration treating method of the flame retardancy plastics of claim 1 record, it is characterized in that, surfacing handle be make crushed material each other and/or crushed material clash into wall, cut the dry type cleaning treatment of skin section.
4. the regeneration treating method of flame retardancy plastics; it is characterized in that; the flame retardancy formed products that will reclaim from the discarded object that comprises the flame retardancy formed products carries out break process; and the surfacing of the broken thing that obtains is handled; cut its skin section 3～30 weight %; be stirred regenerated granuleization then.
5. regeneration flame retardancy preparation method for plastics, it is characterized in that, the flame retardancy formed products that will reclaim from the discarded object that comprises the flame retardancy formed products carries out break process, and the processing of the surfacing of the broken thing that obtains, and cuts its skin section 3～30 weight %.
6. regeneration flame retardancy plastics that obtain by the regeneration flame retardancy preparation method for plastics of claim 5 record.
7. the not use flame retardancy plastics of the regeneration flame retardancy plastics of a claim 6 record and will regenerate flame retardancy plastics and of the same race or xenogenesis are with 5～95: the regeneration flame retardancy plastics that 95～5 weight ratio is mixed.
8. regeneration flame retardancy plastics are to contain the HIPS of incombustible agent or the regeneration flame retardancy plastics as claim 6 record of GPPS.
9. keep the regeneration flame retardancy plastics as claim 6 or 7 records of V-0 or V-2 grade with the UL standard.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001266276 | 2001-09-03 | ||
| JP266276/2001 | 2001-09-03 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1549765A true CN1549765A (en) | 2004-11-24 |
| CN100453284C CN100453284C (en) | 2009-01-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB028171969A Expired - Fee Related CN100453284C (en) | 2001-09-03 | 2002-09-02 | Method of reprocessing fire-resistant plastics |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JPWO2003020486A1 (en) |
| CN (1) | CN100453284C (en) |
| WO (1) | WO2003020486A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114829463A (en) * | 2019-12-16 | 2022-07-29 | 株式会社手工仁久 | Synthetic resin molded article using plastic waste |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1405706A1 (en) * | 2002-10-02 | 2004-04-07 | Nippon Steel Chemical Co., Ltd. | Method of recycling waste plastic |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5455079A (en) * | 1977-10-12 | 1979-05-01 | Meiji Gomu Kasei Kk | Process for regenerating highhquality plastic from waste plastic |
| JPS5736616A (en) * | 1980-08-15 | 1982-02-27 | Mitsubishi Chem Ind Ltd | Method and apparatus for separating degradated layer of synthetic resin molded product |
| JPH07214555A (en) * | 1994-01-31 | 1995-08-15 | Tsutsunaka Plast Ind Co Ltd | Reusing method for polycarbonate molded waste |
| JP2000001567A (en) * | 1998-06-15 | 2000-01-07 | Nec Corp | Method for recycling molded plastic article |
| JP2000351881A (en) * | 1999-04-06 | 2000-12-19 | Toray Ind Inc | Flame-retardant resin composition and molded article made thereof |
-
2002
- 2002-09-02 WO PCT/JP2002/008891 patent/WO2003020486A1/en active Application Filing
- 2002-09-02 JP JP2003524779A patent/JPWO2003020486A1/en active Pending
- 2002-09-02 CN CNB028171969A patent/CN100453284C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114829463A (en) * | 2019-12-16 | 2022-07-29 | 株式会社手工仁久 | Synthetic resin molded article using plastic waste |
| CN114829463B (en) * | 2019-12-16 | 2024-03-08 | 株式会社手工仁久 | Synthetic resin molded article using plastic waste |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100453284C (en) | 2009-01-21 |
| JPWO2003020486A1 (en) | 2004-12-16 |
| WO2003020486A1 (en) | 2003-03-13 |
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