CN109232972A - The radiation method reuse method of waste silicone rubber material - Google Patents
The radiation method reuse method of waste silicone rubber material Download PDFInfo
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- CN109232972A CN109232972A CN201811012285.5A CN201811012285A CN109232972A CN 109232972 A CN109232972 A CN 109232972A CN 201811012285 A CN201811012285 A CN 201811012285A CN 109232972 A CN109232972 A CN 109232972A
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- Prior art keywords
- silicone rubber
- rubber material
- waste silicone
- waste
- parts
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- 229920002379 silicone rubber Polymers 0.000 title claims abstract description 82
- 239000000463 material Substances 0.000 title claims abstract description 69
- 239000002699 waste material Substances 0.000 title claims abstract description 60
- 238000000034 method Methods 0.000 title claims abstract description 54
- 239000004945 silicone rubber Substances 0.000 title claims abstract description 53
- 230000005855 radiation Effects 0.000 title claims abstract description 15
- 239000003595 mist Substances 0.000 claims abstract description 18
- 238000001035 drying Methods 0.000 claims abstract description 15
- 229920000260 silastic Polymers 0.000 claims abstract description 14
- 238000004064 recycling Methods 0.000 claims abstract description 10
- 238000011049 filling Methods 0.000 claims abstract description 8
- 238000012216 screening Methods 0.000 claims abstract description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 22
- 230000008569 process Effects 0.000 claims description 20
- 238000004140 cleaning Methods 0.000 claims description 18
- 239000007789 gas Substances 0.000 claims description 11
- 229910052757 nitrogen Inorganic materials 0.000 claims description 11
- 239000000243 solution Substances 0.000 claims description 9
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 8
- 231100000987 absorbed dose Toxicity 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- KHJWSKNOMFJTDN-UHFFFAOYSA-N 2-[2-[bis(carboxymethyl)amino]ethyl-(carboxymethyl)amino]acetic acid;sodium Chemical compound [Na].OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KHJWSKNOMFJTDN-UHFFFAOYSA-N 0.000 claims description 4
- OIQGMAAUSGKPEX-UHFFFAOYSA-N C(C(O)C)(=O)O.C(C)N1CN(C=C1)C Chemical compound C(C(O)C)(=O)O.C(C)N1CN(C=C1)C OIQGMAAUSGKPEX-UHFFFAOYSA-N 0.000 claims description 4
- FEWJPZIEWOKRBE-UHFFFAOYSA-N Tartaric acid Natural products [H+].[H+].[O-]C(=O)C(O)C(O)C([O-])=O FEWJPZIEWOKRBE-UHFFFAOYSA-N 0.000 claims description 4
- -1 alkyl glycosides Chemical class 0.000 claims description 4
- 229910021529 ammonia Inorganic materials 0.000 claims description 4
- 229930182470 glycoside Natural products 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 4
- 239000002994 raw material Substances 0.000 claims description 4
- 239000001509 sodium citrate Substances 0.000 claims description 4
- 235000011083 sodium citrates Nutrition 0.000 claims description 4
- 235000002906 tartaric acid Nutrition 0.000 claims description 4
- 239000011975 tartaric acid Substances 0.000 claims description 4
- HRXKRNGNAMMEHJ-UHFFFAOYSA-K trisodium citrate Chemical class [Na+].[Na+].[Na+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O HRXKRNGNAMMEHJ-UHFFFAOYSA-K 0.000 claims description 4
- 238000009423 ventilation Methods 0.000 claims description 4
- INAPMGSXUVUWAF-GCVPSNMTSA-N [(2r,3s,5r,6r)-2,3,4,5,6-pentahydroxycyclohexyl] dihydrogen phosphate Chemical compound OC1[C@H](O)[C@@H](O)C(OP(O)(O)=O)[C@H](O)[C@@H]1O INAPMGSXUVUWAF-GCVPSNMTSA-N 0.000 claims description 3
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims description 2
- 238000010894 electron beam technology Methods 0.000 claims description 2
- 238000002347 injection Methods 0.000 claims description 2
- 239000007924 injection Substances 0.000 claims description 2
- 239000001301 oxygen Substances 0.000 claims description 2
- 229910052760 oxygen Inorganic materials 0.000 claims description 2
- 239000002245 particle Substances 0.000 claims description 2
- 230000005611 electricity Effects 0.000 claims 1
- 150000002500 ions Chemical class 0.000 claims 1
- 238000002604 ultrasonography Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 2
- 238000004134 energy conservation Methods 0.000 abstract description 2
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 230000015556 catabolic process Effects 0.000 abstract 1
- 238000006731 degradation reaction Methods 0.000 abstract 1
- 229920001971 elastomer Polymers 0.000 description 10
- 230000000052 comparative effect Effects 0.000 description 6
- HIHIPCDUFKZOSL-UHFFFAOYSA-N ethenyl(methyl)silicon Chemical compound C[Si]C=C HIHIPCDUFKZOSL-UHFFFAOYSA-N 0.000 description 6
- XQSFXFQDJCDXDT-UHFFFAOYSA-N hydroxysilicon Chemical compound [Si]O XQSFXFQDJCDXDT-UHFFFAOYSA-N 0.000 description 6
- 239000003921 oil Substances 0.000 description 6
- 239000007787 solid Substances 0.000 description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 239000004202 carbamide Substances 0.000 description 4
- 239000006260 foam Substances 0.000 description 4
- 239000003292 glue Substances 0.000 description 4
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 238000005336 cracking Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000006261 foam material Substances 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 230000009257 reactivity Effects 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 238000002525 ultrasonication Methods 0.000 description 3
- 229910017052 cobalt Inorganic materials 0.000 description 2
- 239000010941 cobalt Substances 0.000 description 2
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 2
- 238000000748 compression moulding Methods 0.000 description 2
- 238000004132 cross linking Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000007670 refining Methods 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- SQUHHTBVTRBESD-UHFFFAOYSA-N Hexa-Ac-myo-Inositol Natural products CC(=O)OC1C(OC(C)=O)C(OC(C)=O)C(OC(C)=O)C(OC(C)=O)C1OC(C)=O SQUHHTBVTRBESD-UHFFFAOYSA-N 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007233 catalytic pyrolysis Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 150000002338 glycosides Chemical class 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 229960000367 inositol Drugs 0.000 description 1
- 239000006210 lotion Substances 0.000 description 1
- 235000021317 phosphate Nutrition 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000007781 pre-processing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000000197 pyrolysis Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- CDAISMWEOUEBRE-UHFFFAOYSA-N scyllo-inosotol Natural products OC1C(O)C(O)C(O)C(O)C1O CDAISMWEOUEBRE-UHFFFAOYSA-N 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000004230 steam cracking Methods 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J11/00—Recovery or working-up of waste materials
- C08J11/04—Recovery or working-up of waste materials of polymers
- C08J11/10—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/66—Non-ionic compounds
- C11D1/662—Carbohydrates or derivatives
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/20—Organic compounds containing oxygen
- C11D3/2075—Carboxylic acids-salts thereof
- C11D3/2086—Hydroxy carboxylic acids-salts thereof
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/26—Organic compounds containing nitrogen
- C11D3/28—Heterocyclic compounds containing nitrogen in the ring
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/26—Organic compounds containing nitrogen
- C11D3/30—Amines; Substituted amines ; Quaternized amines
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/36—Organic compounds containing phosphorus
- C11D3/362—Phosphates or phosphites
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2383/00—Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen, or carbon only; Derivatives of such polymers
- C08J2383/04—Polysiloxanes
-
- 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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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Wood Science & Technology (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Molecular Biology (AREA)
- Sustainable Development (AREA)
- Emergency Medicine (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a kind of radiation method reuse methods of waste silicone rubber material, which comprises the following steps: Step 1: being cleaned and being dried the waste silicone rubber material of recycling；Step 2: the waste silicone rubber material after drying is placed in irradiation field internal irradiation certain time, it is crushed after taking-up, screening obtains can be used as the silicon rubber micro mist that reinforced filling uses.The present invention is by means of radiotechnology, easy to operate, energy conservation and environmental protection, while basic no waste mine generates, and can accomplish high recycling to the waste silicone rubber material of recycling, it is easy to accomplish scale effect.The finally obtained silicon rubber micro mist of the present invention, it can be used as reinforced filling use, it is used to prepare silastic material product, to reduce the production cost of production silastic product, while can also solve the problems, such as that the discarding of waste silicone rubber material is not easy occupied space brought by natural degradation and pollution environment.
Description
Technical field
The invention belongs to silastic material reutilization technology fields, and in particular to a kind of radiation method of waste silicone rubber material
Reuse method.
Background technique
Since silicon rubber has the excellent properties such as resistance to wide temperature range, and price is higher, therefore makes waste silicone rubber material (packet
Include scrap rubber, sulfur waste leftover pieces, flaw-piece, the waste products such as foam, solid rubber) it recycles, it is produced into for saving natural resources, reducing
Originally, weaken environmental pollution, all there is important economic significance.
Currently, waste silicone rubber material recovery recycle main processes include: cleaning, removal of impurities, drying, stripping and slicing,
Cracking, refining.Waste and old product are cleaned first, remove impurity and drying, then sort, is cut into small pieces, and is sent to and splits
Solution, final purification obtain reclaimed rubber.The mode of cracking is usually that machinery rolls refining cracking, direct steam cracking, high temperature pyrolysis, change
Method modification or catalytic pyrolysis.
With the progress of national economy, the application field of silastic material is constantly being expanded, and dosage also increasingly increases
Greatly, therewith because the scale of construction of the waste silicone rubber material of the generations such as development and production, part replacement, equipment retirement also increases day by day,
Having the processing mode of technology, not only energy consumption is larger, while also easily polluting the environment.Therefore, explore that technique is simple and direct and energy-saving ring
The waste silicone rubber Reuse of materials technology of guarantor has very positive meaning.
Summary of the invention
It is excellent it is an object of the invention to solve at least the above problems and/or defect, and provide at least to will be described later
Point.
In order to realize these purposes and other advantages according to the present invention, a kind of radiation of waste silicone rubber material is provided
Method reuse method, comprising the following steps:
Step 1: being cleaned and being dried the waste silicone rubber material of recycling；
Step 2: the waste silicone rubber material after drying is placed in irradiation field internal irradiation certain time, it is crushed after taking-up, sieve
Get and can be used as the silicon rubber micro mist that reinforced filling uses.
Preferably, the process for being placed in irradiation field internal irradiation is that the waste silicone rubber material after drying is laid in gold
Belong to and be either piled up in irradiation field the position that can receive radiation exposure on matter objective table, accumulative absorbed dose is at least up to
1.0MGy at least turns over waste silicone rubber material in irradiation process whole primary；The irradiation field is gamma-rays device or electron beam
Accelerator.
Preferably, any one broken using in planetary ball mill, open mill, pulverizer, broken 10~
30 minutes, the bulky grain after screening process can be crushed or carry out repeatedly irradiation repeatedly, broken, obtain the silicon of micron-level particle size
Rubber micro mist.
It preferably, further include following procedure between the step 1 and step 2: by the waste silicone rubber material after drying
Material is sent into atmos low-temperature plasma device, and waste silicone rubber material is made to be in ejecting for atmos low-temperature plasma
20~60mm at mouthful, the throughput in atmos low-temperature plasma device according to 10~20L/h are passed through gas, apply work
Voltage forms plasma jet, control the movement speed of the jet exit of atmos low-temperature plasma device 5~
15mm/s makes plasma jet injection on waste silicone rubber material, handles 90~120min, obtain pre-processing waste and old silicon rubber
Glue material；The operating voltage is provided using high-voltage ac power, and the operating voltage is the alternating voltage of 50~100kV, frequency
Rate is 150~300kHz；The gas is the mixing of one or more of air, rare gas/oxygen, nitrogen, ammonia.
Preferably, in the step 1, the process of cleaning are as follows: waste silicone rubber material is added in cleaning solution, then
It is cleaned by ultrasonic 10~15min；And in ultrasonication, nitrogen is passed through into cleaning liquor；The Ventilation Rate of nitrogen is
50-100mL/min；The cleaning solution includes the raw material composition of following parts by weight: 3~5 parts of sodium citrates, 1~3 portion of alkyl sugar
Glycosides, 1~3 part of ethylenediaminetetraacetic acid sodium, 2~5 parts of inositol phosphates, 3~5 parts of tartaric acid, 0.5~1.5 part of 1- ethyl -3-
Methylimidazole lactic acid, 80~120 parts of water.
The present invention is include at least the following beneficial effects:
(1) present invention is by means of radiotechnology, easy to operate, energy conservation and environmental protection, while basic no waste mine generates, can be to returning
The waste silicone rubber material of receipts accomplishes high recycling, it is easy to accomplish scale effect.
(2) the finally obtained silicon rubber micro mist of the present invention can be used as reinforced filling use, be used to prepare silastic material system
Product to reduce the production cost of production silastic product, while can also solve the discarding of waste silicone rubber material and be not easy nature
The problem of occupied space brought by degrading and pollution environment.
Further advantage, target and feature of the invention will be partially reflected by the following instructions, and part will also be by this
The research and practice of invention and be understood by the person skilled in the art.
Detailed description of the invention:
Fig. 1 is process flow chart of the invention；
Fig. 2 is the scanning electron microscope (SEM) photograph of silicon rubber micro mist prepared by the embodiment of the present invention 1.
Specific embodiment:
Present invention will be described in further detail below with reference to the accompanying drawings, to enable those skilled in the art referring to specification text
Word can be implemented accordingly.
It should be appreciated that such as " having ", "comprising" and " comprising " term used herein do not allot one or more
The presence or addition of a other elements or combinations thereof.
Embodiment 1:
A kind of radiation method reuse method of waste silicone rubber material, comprising the following steps:
Step 1: the sulphurated siliastic solid rubber leftover pieces of recycling are cleaned and are dried；
Step 2: the sulphurated siliastic solid rubber leftover pieces after drying are laid on stainless steel rack, it is placed in cobalt source γ
Irradiation field internal irradiation makes its accumulative absorbed dose up to 1.0MGy, and in irradiation process turns over material whole once to ensure to be in
Primer can receive the irradiation of absorbed dose accumulative enough, and taking-up is put into open mill to be crushed 30 minutes repeatedly, appropriate to sieve
Dividing can be obtained the micron-sized silicon rubber micro mist of partial size.
Embodiment 2:
A kind of radiation method reuse method of waste silicone rubber material, comprising the following steps:
Step 1: being cleaned and being dried the silicon rubber foam of recycling；
Step 2: the silicon rubber foam after drying is laid on stainless steel rack, it is placed in electron accelerator internal irradiation, is made
Its accumulative absorbed dose reaches 1.0MGy, and in irradiation process by material turn over it is whole three times, taking-up is put into planetary ball mill inner powder
Broken 20 minutes, the micron-sized silicon rubber micro mist of partial size can be obtained in appropriate screening.
Embodiment 3:
A kind of radiation method reuse method of waste silicone rubber material, comprising the following steps:
Step 1: the sulphurated siliastic solid rubber leftover pieces, waste silicone rubber foam, raw-silastic continuously of recycling are carried out clear
It is clean and dry, obtain mixed material；
Step 2: the mixed material after drying is laid on stainless steel rack, it is placed in spoke in cobalt source γ irradiation field, makes it
Accumulative absorbed dose reaches 1.2MGy, and in irradiation process turns over material whole primary, and taking-up is put into planetary ball mill and crushes
10 minutes, the micron-sized silicon rubber micro mist of partial size can be obtained in appropriate screening.
Embodiment 4:
Further include following procedure between the step 1 and step 2: the waste silicone rubber material after drying is sent into atmosphere
It presses in low-temperature plasma device, waste silicone rubber material is made to be in 60mm at the jet exit of atmos low-temperature plasma,
Throughput in atmos low-temperature plasma device according to 20L/h is passed through gas, applies operating voltage, forms plasma
Jet stream controls the movement speed of the jet exit of atmos low-temperature plasma device in 15mm/s, sprays plasma jet
It penetrates on waste silicone rubber material, handles 120min, obtain pretreatment waste silicone rubber material；The operating voltage uses high pressure
AC power source provides, and the operating voltage is the alternating voltage of 100kV, frequency 300kHz；The gas is air and ammonia
Mixing.Using plasma jet stream pre-processes waste silicone rubber material, improves the reactivity of recycling silicon rubber；
Have many advantages, such as waste silicone rubber and raw rubber compatibility is good, reactivity is high, physicochemical properties are stable, it can be with silicon rubber
Raw rubber reaction prepares high performance silastic material.
Remaining technical process and parameter with it is identical in embodiment 1.
Embodiment 5:
Further include following procedure between the step 1 and step 2: the waste silicone rubber material after drying is sent into atmosphere
It presses in low-temperature plasma device, waste silicone rubber material is made to be in 40mm at the jet exit of atmos low-temperature plasma,
Throughput in atmos low-temperature plasma device according to 15L/h is passed through gas, applies operating voltage, forms plasma
Jet stream controls the movement speed of the jet exit of atmos low-temperature plasma device in 10mm/s, sprays plasma jet
It penetrates on waste silicone rubber material, handles 90min, obtain pretreatment waste silicone rubber material；The operating voltage uses high pressure
AC power source provides, and the operating voltage is the alternating voltage of 100kV, frequency 200kHz；The gas is nitrogen and ammonia
Mixing.
Remaining technical process and parameter with it is identical in embodiment 1.
Embodiment 6:
In the step 1, the process of cleaning are as follows: waste silicone rubber material is added in cleaning solution, is then cleaned by ultrasonic
15min；And in ultrasonication, nitrogen is passed through into cleaning liquor；The Ventilation Rate of nitrogen is 100mL/min；Institute
State the raw material composition that cleaning solution includes following parts by weight: 5 parts of sodium citrates, 3 parts of alkyl glycosides, 3 parts of ethylenediaminetetraacetic acid sodium, 5
Part inositol phosphate, 5 parts of tartaric acid, 1.5 parts of 1- ethyl-3-methylimidazole lactic acid, 120 parts of water.Using of the invention clear
Washing lotion and cleaning method can effectively remove the impurity of waste silicone rubber material surface, improve waste silicone rubber and raw rubber
Compatibility and reactivity, high performance silastic material product is prepared.
Remaining technical process and parameter with it is identical in embodiment 1.
Embodiment 7:
In the step 1, the process of cleaning are as follows: waste silicone rubber material is added in cleaning solution, is then cleaned by ultrasonic
10min；And in ultrasonication, nitrogen is passed through into cleaning liquor；The Ventilation Rate of nitrogen is 80mL/min；It is described
Cleaning solution includes the raw material composition of following parts by weight: 3 parts of sodium citrates, 2 parts of alkyl glycosides, 2 parts of ethylenediaminetetraacetic acid sodium, 3 parts
Inositol phosphate, 4 parts of tartaric acid, 1 part of 1- ethyl-3-methylimidazole lactic acid, 100 parts of water.
Remaining technical process and parameter with it is identical in embodiment 1.
The silicon rubber micro mist obtained with above-described embodiment 1~7, uses as reinforced filling, is used to prepare silastic material
Product.
(1) it is kneaded with raw-silastic continuously, prepares the solid glue material of silicon rubber
Formula: 100 parts of methyl vinyl silicon kautschuk, obtain 10 parts of silicon rubber micro mist of Examples 1 to 7, hydroxyl silicon
3 parts of oil；
On a mill by 100 parts of methyl vinyl silicon kautschuk, Examples 1 to 7 prepare 10 parts of silicon rubber micro mist,
After 3 parts of hydroxy silicon oil is sufficiently kneaded, the compression moulding on tablet press machine, crosslinking with radiation is up to the solid glue material of silicon rubber.
Comparative example 1:
Formula: 100 parts of methyl vinyl silicon kautschuk, 10 parts of precipitated silica, 3 parts of hydroxy silicon oil；Preparation process
Ibid.
The silicon rubber micro mist obtained using Examples 1 to 7 is real as the silicon rubber that reinforced filling and comparative example 2 are prepared respectively
The performance of heart glue material is as shown in table 1:
Table 1
| Tensile strength | Elongation at break | Tearing strength | |
| Embodiment 1 | 0.7461MPa | 254.09% | 4.2956KN/m |
| Embodiment 2 | 0.6548MPa | 242.11% | 4.1235KN/m |
| Embodiment 3 | 0.8157MPa | 265.35% | 4.6885KN/m |
| Embodiment 4 | 0.8265MPa | 275.58% | 4.8875KN/m |
| Embodiment 5 | 0.8258MPa | 274.88% | 4.8786KN/m |
| Embodiment 6 | 0.7925MPa | 260.12% | 4.4856KN/m |
| Embodiment 7 | 0.7931MPa | 261.08% | 4.4982KN/m |
| Comparative example 1 | 0.7435MPa | 253.18% | 4.2535KN/m |
Table 2
| Tensile strength | Elongation at break | Tearing strength | |
| Embodiment 1 | 0.3877MPa | 226.19% | 1.8894KN/m |
| Embodiment 2 | 0.3425MPa | 223.12% | 1.7856KN/m |
| Embodiment 3 | 0.4135MPa | 229.42% | 1.9894KN/m |
| Embodiment 4 | 0.4354MPa | 238.65% | 2.4868KN/m |
| Embodiment 5 | 0.4328MPa | 238.78% | 2.4912KN/m |
| Embodiment 6 | 0.4062MPa | 228.78% | 1.9232KN/m |
| Embodiment 7 | 0.4052MPa | 228.63% | 1.9225KN/m |
| Comparative example 2 | 0.3785MPa | 225.35% | 1.8215KN/m |
(2) it is kneaded with raw-silastic continuously, prepares silicon rubber foam material
Formula: 100 parts of methyl vinyl silicon kautschuk, obtain 10 parts of silicon rubber micro mist of Examples 1 to 7, hydroxyl silicon
3 parts, 150 parts of urea of oil
On a mill by 100 parts of methyl vinyl silicon kautschuk, Examples 1 to 7 prepare 10 parts of silicon rubber micro mist,
After 3 parts of hydroxy silicon oil, 150 parts of urea are sufficiently kneaded, the compression moulding on tablet press machine, crosslinking with radiation is placed on dissolved in pure water and washes
De- urea, taking-up are drying to obtain silicon rubber foam material.
Comparative example 2:
Formula: 100 parts of methyl vinyl silicon kautschuk, 10 parts of precipitated silica, 3 parts of hydroxy silicon oil, urea 150
Part；Preparation process is same as above.
The silicon rubber bubble that the silicon rubber micro mist obtained using Examples 1 to 7 is prepared respectively as reinforced filling and comparative example 2
The performance of foam material is as shown in table 2.
Although the embodiments of the present invention have been disclosed as above, but its is not only in the description and the implementation listed
With it can be fully applied to various fields suitable for the present invention, for those skilled in the art, can be easily
Realize other modification, therefore without departing from the general concept defined in the claims and the equivalent scope, the present invention is simultaneously unlimited
In specific details and legend shown and described herein.
Claims (5)
1. a kind of radiation method reuse method of waste silicone rubber material, which comprises the following steps:
Step 1: being cleaned and being dried the waste silicone rubber material of recycling；
Step 2: the waste silicone rubber material after drying is placed in irradiation field internal irradiation certain time, it is crushed, sieves after taking-up
To the silicon rubber micro mist that can be used as reinforced filling and use.
2. the radiation method reuse method of waste silicone rubber material as described in claim 1, which is characterized in that described to be placed in spoke
Process according to field internal irradiation is that the waste silicone rubber material after drying is laid on metallic objective table or is piled up in spoke
According to the position that can receive radiation exposure in field, accumulative absorbed dose is at least up to 1.0MGy, at least will be waste and old in irradiation process
Silastic material turns over whole primary；The irradiation field is gamma-rays device or electron-beam accelerator.
3. the radiation method reuse method of waste silicone rubber material as described in claim 1, which is characterized in that described be crushed is adopted
With any one in planetary ball mill, open mill, pulverizer, it is crushed 10~30 minutes, the bulky grain after screening process can
It is crushed or is carried out repeatedly irradiation repeatedly, broken, obtains the silicon rubber micro mist of micron-level particle size.
4. the radiation method reuse method of waste silicone rubber material as described in claim 1, which is characterized in that the step 1
Further include following procedure between step 2: the waste silicone rubber material after drying is sent into atmos low-temperature plasma device
In, so that waste silicone rubber material is in 20~60mm at the jet exit of atmos low-temperature plasma, in atmos low-temperature etc.
Throughput in ion body device according to 10~20L/h is passed through gas, applies operating voltage, forms plasma jet, control
The movement speed of the jet exit of atmos low-temperature plasma device makes plasma jet injection in useless in 5~15mm/s
On old silastic material, 90~120min is handled, obtains pretreatment waste silicone rubber material；The operating voltage is handed over using high pressure
Galvanic electricity source provides, and the operating voltage is the alternating voltage of 50~100kV, and frequency is 150~300kHz；The gas is sky
The mixing of one or more of gas, rare gas/oxygen, nitrogen, ammonia.
5. the radiation method reuse method of waste silicone rubber material as described in claim 1, which is characterized in that the step 1
In, the process of cleaning are as follows: waste silicone rubber material is added in cleaning solution, is then cleaned by ultrasonic 10~15min；And at ultrasound
During reason, nitrogen is passed through into cleaning liquor；The Ventilation Rate of nitrogen is 50-100mL/min；The cleaning solution include with
The raw material of lower parts by weight forms: 3~5 parts of sodium citrates, 1~3 part of alkyl glycosides, 1~3 part of ethylenediaminetetraacetic acid sodium, 2~5 parts
Inositol phosphate, 3~5 parts of tartaric acid, 0.5~1.5 part of 1- ethyl-3-methylimidazole lactic acid, 80~120 parts of water.
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| CN1153187A (en) * | 1995-12-28 | 1997-07-02 | 北京清华科技园发展中心 | Method for regeneration of used vulcanized rubber-isobutylene by electron beam |
| KR20090130948A (en) * | 2008-06-17 | 2009-12-28 | 현대자동차주식회사 | A recycling method of air bag fabrics |
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| CN1153187A (en) * | 1995-12-28 | 1997-07-02 | 北京清华科技园发展中心 | Method for regeneration of used vulcanized rubber-isobutylene by electron beam |
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| EP4105269A1 (en) * | 2021-06-16 | 2022-12-21 | Qingdao Huilu Silicone Co., Ltd. | Recycled silicone rubber and preparation method thereof |
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