CN104558703A - Tungsten-base composite material applied to ray shielding and preparation method thereof - Google Patents
Tungsten-base composite material applied to ray shielding and preparation method thereof Download PDFInfo
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- CN104558703A CN104558703A CN201410699782.2A CN201410699782A CN104558703A CN 104558703 A CN104558703 A CN 104558703A CN 201410699782 A CN201410699782 A CN 201410699782A CN 104558703 A CN104558703 A CN 104558703A
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- 239000002131 composite material Substances 0.000 title claims abstract description 34
- 238000002360 preparation method Methods 0.000 title claims abstract description 21
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims abstract description 63
- 229910052721 tungsten Inorganic materials 0.000 claims abstract description 46
- 239000010937 tungsten Substances 0.000 claims abstract description 46
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 39
- 238000004073 vulcanization Methods 0.000 claims abstract description 30
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 claims abstract description 26
- 239000000945 filler Substances 0.000 claims abstract description 19
- 230000003712 anti-aging effect Effects 0.000 claims abstract description 18
- 239000012190 activator Substances 0.000 claims abstract description 15
- 238000003490 calendering Methods 0.000 claims abstract description 14
- 239000000835 fiber Substances 0.000 claims abstract description 14
- 229920001971 elastomer Polymers 0.000 claims abstract description 13
- 239000005060 rubber Substances 0.000 claims abstract description 13
- 239000000843 powder Substances 0.000 claims abstract description 12
- 238000001125 extrusion Methods 0.000 claims abstract description 7
- 239000002994 raw material Substances 0.000 claims abstract description 7
- 229910001404 rare earth metal oxide Inorganic materials 0.000 claims abstract description 5
- 238000005096 rolling process Methods 0.000 claims description 18
- 239000000463 material Substances 0.000 claims description 16
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 14
- 239000000203 mixture Substances 0.000 claims description 13
- 238000001291 vacuum drying Methods 0.000 claims description 12
- 239000004902 Softening Agent Substances 0.000 claims description 10
- CMIHHWBVHJVIGI-UHFFFAOYSA-N gadolinium(iii) oxide Chemical compound [O-2].[O-2].[O-2].[Gd+3].[Gd+3] CMIHHWBVHJVIGI-UHFFFAOYSA-N 0.000 claims description 8
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 7
- 239000011787 zinc oxide Substances 0.000 claims description 7
- 239000002390 adhesive tape Substances 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 6
- 238000005520 cutting process Methods 0.000 claims description 6
- 239000012530 fluid Substances 0.000 claims description 6
- 230000008676 import Effects 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 6
- 239000008188 pellet Substances 0.000 claims description 6
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 6
- 150000002910 rare earth metals Chemical class 0.000 claims description 6
- 238000007670 refining Methods 0.000 claims description 6
- 238000010058 rubber compounding Methods 0.000 claims description 6
- 239000005662 Paraffin oil Substances 0.000 claims description 4
- -1 scorch retarder Substances 0.000 claims description 4
- UVCPFMQKORNNGH-UHFFFAOYSA-N 4-cyclohexyl-3,2,4-benzothiadiazepine-1,5-dione Chemical group C1(C=2C(C(=O)NSN1C1CCCCC1)=CC=CC2)=O UVCPFMQKORNNGH-UHFFFAOYSA-N 0.000 claims description 3
- 229940124530 sulfonamide Drugs 0.000 claims description 3
- 150000004945 aromatic hydrocarbons Chemical class 0.000 claims description 2
- 229910000420 cerium oxide Inorganic materials 0.000 claims description 2
- ZXGIFJXRQHZCGJ-UHFFFAOYSA-N erbium(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Er+3].[Er+3] ZXGIFJXRQHZCGJ-UHFFFAOYSA-N 0.000 claims description 2
- 239000004744 fabric Substances 0.000 claims description 2
- MRELNEQAGSRDBK-UHFFFAOYSA-N lanthanum(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[La+3].[La+3] MRELNEQAGSRDBK-UHFFFAOYSA-N 0.000 claims description 2
- 238000000034 method Methods 0.000 claims description 2
- PLDDOISOJJCEMH-UHFFFAOYSA-N neodymium(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Nd+3].[Nd+3] PLDDOISOJJCEMH-UHFFFAOYSA-N 0.000 claims description 2
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 claims description 2
- MMKQUGHLEMYQSG-UHFFFAOYSA-N oxygen(2-);praseodymium(3+) Chemical compound [O-2].[O-2].[O-2].[Pr+3].[Pr+3] MMKQUGHLEMYQSG-UHFFFAOYSA-N 0.000 claims description 2
- 230000008569 process Effects 0.000 claims description 2
- FKTOIHSPIPYAPE-UHFFFAOYSA-N samarium(iii) oxide Chemical compound [O-2].[O-2].[O-2].[Sm+3].[Sm+3] FKTOIHSPIPYAPE-UHFFFAOYSA-N 0.000 claims description 2
- 150000003456 sulfonamides Chemical class 0.000 claims description 2
- 125000000565 sulfonamide group Chemical group 0.000 claims 1
- 239000011159 matrix material Substances 0.000 abstract description 6
- 230000002349 favourable effect Effects 0.000 abstract 2
- 238000000465 moulding Methods 0.000 abstract 1
- 239000004014 plasticizer Substances 0.000 abstract 1
- 238000009740 moulding (composite fabrication) Methods 0.000 description 11
- 230000005855 radiation Effects 0.000 description 11
- 238000012545 processing Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 229920000181 Ethylene propylene rubber Polymers 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000001959 radiotherapy Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- YXIWHUQXZSMYRE-UHFFFAOYSA-N 1,3-benzothiazole-2-thiol Chemical compound C1=CC=C2SC(S)=NC2=C1 YXIWHUQXZSMYRE-UHFFFAOYSA-N 0.000 description 1
- 208000032484 Accidental exposure to product Diseases 0.000 description 1
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- 229920013649 Paracril Polymers 0.000 description 1
- 231100000818 accidental exposure Toxicity 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- 229910052601 baryte Inorganic materials 0.000 description 1
- 239000010428 baryte Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000002405 diagnostic procedure Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004992 fission Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical class [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 229920001084 poly(chloroprene) Polymers 0.000 description 1
- 229920000642 polymer Chemical class 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000002285 radioactive effect Effects 0.000 description 1
- 239000003870 refractory metal Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000005987 sulfurization reaction Methods 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/02—Organic and inorganic ingredients
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/0011—Combinations of extrusion moulding with other shaping operations combined with compression moulding
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/08—Metals
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L7/00—Compositions of natural rubber
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/08—Metals
- C08K2003/0887—Tungsten
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/221—Oxides; Hydroxides of metals of rare earth metal
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
- C08K2003/3045—Sulfates
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/003—Additives being defined by their diameter
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/016—Additives defined by their aspect ratio
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Thermal Sciences (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention relates to a tungsten-base composite material applied to ray shielding and a preparation method thereof. The tungsten-base composite material comprises the following components in parts by weight: 100 parts of rubber, 200-2000 parts of tungsten powder, 0.5-50 parts of tungsten fiber, 0.5-150 parts of barite powder and/or 0.5-250 parts of rare-earth oxide powder, 0.5-6 parts of compatilizer, 3-9 parts of activator, 0.5-50 parts of plasticizer, 0.5-3 parts of anti-aging agent, 0.05-0.5 part of anti-scorching agent, 0.5-3 parts of vulcanization accelerator and 0.5-3 parts of vulcanizing agent. The preparation method comprises the following steps: (1) proportioning and preparation of raw materials; (2) preparation of mixed filler; (3) mixing of rubber matrix; (4) extrusion and calendering; and (5) vulcanization molding and the like. The composite material is free of lead, and has the advantages of favorable ray shielding performance, favorable physical and mechanical properties and the like.
Description
Technical field
The present invention relates to a kind of tungsten-based composite material being applied to ray shield and preparation method thereof, belong to advanced functional composite Materials Design and preparation field.
Background technology
Along with the raising of modern science and technology level, the various fundamental research launched around nuclear energy and ray applications in fields such as the nuclear power energy, medical treatment detection, military war, aerospace, people's livelihood securities and technological development constantly increase, and radiation protection seems further important thus.Such as in nuclear power field, the reactor of nuclear power plant is a huge radioactive source, and fuel fission and nuke rubbish can produce a large amount of x radiation xs.Therefore, radiation-resistant glass must be carried out to its equipment and operator, to avoid the generation of various possibility accident.Again such as at core medical field, x-ray inspection equipment, the CT examination equipment of medical space increase year by year, the partial irradiation dosage that in a diagnostic procedure, patient is subject to is equivalent to the decades of times of natural radiation year equivalent dose, the local dose of radiotherapy is larger, and the dosage of a course for the treatment of is equivalent to several thousand times that diagnose.Therefore, the medical personnel of patient and frequent behaviour's Medical Equipment for Radiotherapy must carry out effective ray shield, to reduce accidental exposure harm.
Traditional core radiation shielding material is mainly metallic lead and polymer composites thereof, and it has good EAC, has good shield effectiveness to low energy and sigmatron and gamma-rays, and cost is low and be easy to processing.But plumbous fusing point own is low, have bio-toxicity, can form lead steam when comparatively high temps, atmosphere pollution, water source and the farm crop such as leaded waste gas, waste water, waste residue, seriously jeopardize HUMAN HEALTH.According to European Union's " about being limited in electronic and electrical equipment the instruction (RoHS instruction) using some objectionable constituent ", " waste electronic andelectrical equipment instruction (WEEE instruction) " and " registration of chemical, assessment, mandate and restriction (REACH regulation) ", lead is listed in and limits one of objectionable impurities of using and showing great attention to.Along with China's Ecological Civilization Construction and environmental improvement measure are constantly strengthened, hard closing is not successively had the processing factory of plumbous subsequent disposal ability by country, therefore unleaded shielding material will there will be larger demand, study to replace lead with other material to be applied to ray shield field imperative.
The ordination number of tungsten is 74, and density is 19.35g/cm
3, there is good ray shield performance, and do not produce secondary electron radiation, be used to the choosing of the ideal doing Shielding Materials for Nuclear Radiation.But it should be noted that tungsten is high-melting-point refractory metal, sintered state toughness plasticity is poor, formed machining is difficult and cost is higher, is difficult to prepare the comparatively complicated application part of shape, is therefore subject to many limitations when applying.Japan Tomita applies for a patent EP1338626 in calendar year 2001, this patent is with polymeric amide (PA6, PA66 and PA12) be polymeric matrix, take tungsten powder as screener, the matrix material adopting injection forming to prepare has good ray shield performance, but cannot be used for the occasion of flexible requirement, and can only prepare small dimension goods, its scope of application is restricted.
Summary of the invention
The object of the invention is to a kind of tungsten-based composite material being applied to ray shield of design and preparation method thereof.This matrix material is not leaded; there is good ray shield performance, physical and mechanical properties etc.; and environmental friendliness, pliable and tough easy processing, can be applicable to the ray shield field of nuclear industry, core medical treatment, precision instrument, electric mechanical, nuke rubbish and core crisis pollutent storage receptacle etc.
Concrete technical scheme of the present invention is as follows:
Be applied to a tungsten-based composite material for ray shield, each component and weight percent content thereof are:
Rubber 100 weight part;
Tungsten powder 200 weight part-2000 weight part;
Tungsten fiber 0.5 weight part-50 weight part;
Ground barium sulfate 0.5 weight part-150 weight part and/or rareearth oxidate powder 0.5 weight part-250 weight part;
Compatilizer 0.5 weight part-6 weight part;
Activator 3 weight part-9 weight part;
Softening agent 0.5 weight part-50 weight part;
Anti-aging agent 0.5 weight part-3 weight part;
Scorch retarder 0.05 weight part-0.5 weight part;
Vulcanization accelerator 0.5 weight part-3 weight part;
Vulcanizing agent 0.5 weight part-3 weight part.
Wherein, rubber is preferably the mixture of one or more in natural rubber, styrene-butadiene rubber(SBR), ethylene-propylene rubber(EPR), chloroprene rubber, paracril.
Tungsten powder is a kind of tungsten powder of Fisher particle size 0.4 μm-20 μm or the mixture of several tungsten powder.Its weight part preferably can be 400,600,800,1000,1200,1400,1600,1800 parts.
Tungsten fiber is diameter 10 μm-30 μm, a kind of tungsten fiber of length-to-diameter ratio 50-150 or the mixture of several tungsten fiber.Its weight part preferably can be 5,10,15,20,25,30,35,40,45 parts.
Ground barium sulfate is a kind of ground barium sulfate of Fisher particle size 0.1 μm-5 μm or the mixture of several ground barium sulfate.Its weight part preferably can be 10,20,30,40,50,60,70,80,90,100,110,120,130,140 parts.
Rare earth oxide is the mixture of a kind of rareearth oxidate powder in the Erbium trioxide of Fisher particle size 0.4 μm-20 μm, lanthanum trioxide, gadolinium sesquioxide, Neodymium trioxide, cerium oxide, Praseodymium trioxide, Samarium trioxide or several rareearth oxidate powder.Its weight part preferably can be 10,20,40,60,80,100,120,140,160,180,200,220,240 parts.
Wherein, lead element is not contained in activator, anti-aging agent, scorch retarder, softening agent, compatilizer, vulcanization accelerator, vulcanizing agent.These can adopt prior art.But, preferably,
Containing zinc oxide, preferably indirect process zinc oxide in activator.
Scorch retarder is preferably sulfonamide antiscorchiag agent, is more preferably N-cyclohexyl thio phthalamide.
Softening agent is preferably the one in aromatic hydrocarbon oil, naphthenic oil or paraffin oil.
Compatilizer is preferably silane coupling agent.
The above-mentioned preparation method being applied to the tungsten-based composite material of ray shield, the steps include:
(1) feed proportioning prepares: various raw material is weighed up quality by formula, and the pellet in the rubber ingredients such as anti-aging agent, vulcanization accelerator is broken into powdery.
(2) mixed fillers preparation: by filler vacuum-dryings in vacuum drying oven such as tungsten powder, tungsten fiber, ground barium sulfate, rareearth oxidate powders, and mix obtained mixed fillers in vacuum high-speed mixer.
(3) rubber compounding: add rubber, activator, anti-aging agent, scorch retarder, mixed fillers, softening agent, compatilizer, vulcanization accelerator, vulcanizing agent etc. successively in Banbury mixer, after banburying evenly, refining clot is opened in mill, and lower bar is parked.
(4) extrusion calendaring: adhesive tape will be parked and drop into pin cold feed extruder, extrude with fluid pressure type wide cut head, and be rolled into sheet material through rolling press, after cutting edge cooling, park with paper or cloth pad (preferred, with high-strength double-face separate-type paper pad) rolling.
(5) vulcanization forming: lead out two-sided separate-type paper, imports drum vulcanizer vulcanization forming by calendered sheet, derive rolling.
The invention has the beneficial effects as follows:
1. the tungsten base ray shield matrix material prepared with the function powders such as tungsten powder, tungsten fiber, barite, rare earth oxide and rubber of the present invention, to X-ray and gamma-rays, there is excellent screening ability (protective value is at more than 0.30mmPb), and belong to green material, not containing lead element, environmentally safe, lifeless matter toxicity, soft easily processing (tensile yield is more than 500%).
2. make matrix material while possessing good ray shield performance compared with the function powder of fine grain size and tungsten fiber in the present invention; have excellent physical and mechanical properties concurrently, can be applicable to the ray shield field of nuclear industry, core medical treatment, precision instrument, electric mechanical, nuke rubbish and core crisis pollutent storage receptacle etc.
3. the powder plasticizing that the present invention adopts extrudes/calendering/sulfurization technology, overcomes in foregoing invention and cannot produce massive article, the shortcoming such as production efficiency is low, density uniformity is poor, poor dimensional precision, ray shield weak effect.
4. the tungsten-based composite material being applied to ray shield that the present invention invents not only functionally achieves the requirement of core ray shield, and the problem that the application mode and being difficult to of formally having overturned tungsten and alloy thereof shapes, thus material product design is made to have higher handiness.
Embodiment
Below in conjunction with specific embodiment, the invention will be further described.
In following examples, activator is all zinc oxide, anti-aging agent is DNP, scorch retarder is N-cyclohexyl thio phthalamide (CTP), softening agent is paraffin oil, compatilizer is silane coupling agent.Accelerator M, vulcanizing agent are S.
Embodiment 1
The tungsten-based composite material formula being applied to ray shield is:
The described preparation method being applied to the tungsten-based composite material of ray shield, the steps include:
(1) feed proportioning prepares: various raw material is weighed up quality by formula, and the pellet in anti-aging agent, vulcanization accelerator is broken into powdery.
(2) mixed fillers preparation: by three kinds of tungsten powder vacuum-dryings in vacuum drying oven, and mix obtained mixed fillers in vacuum high-speed mixer.
(3) rubber compounding: add rubber, activator, anti-aging agent, anti-scorching agent CTP, mixed fillers, silane coupling agent, vulcanization accelerator, vulcanizing agent etc. successively at 90 DEG C-110 DEG C in Banbury mixer, after banburying evenly, refining clot is opened in mill 50 DEG C-60 DEG C, and lower bar is parked.
(4) extrusion calendaring: will park adhesive tape and drop into pin cold feed extruder, and extrude, and be rolled into sheet material through rolling press with fluid pressure type wide cut head 50 DEG C-90 DEG C, after cutting edge cooling, does pad rolling with high-strength double-face separate-type paper and parks.
(5) vulcanization forming: lead out two-sided separate-type paper, imports drum vulcanizer 140 DEG C of-150 DEG C of vulcanization formings by calendered sheet, derive rolling.
The physical and mechanical properties being applied to the tungsten-based composite material sheet material of ray shield of gained and radiation protection performance as follows:
Embodiment 2
The tungsten-based composite material formula being applied to ray shield is:
The described preparation method being applied to the tungsten-based composite material of ray shield, the steps include:
(1) feed proportioning prepares: various raw material is weighed up quality by formula, and the pellet in anti-aging agent, vulcanization accelerator is broken into powdery.
(2) mixed fillers preparation: by tungsten powder, the vacuum-drying in vacuum drying oven of gadolinium sesquioxide powder, and mix obtained mixed fillers in vacuum high-speed mixer.
(3) rubber compounding: add rubber, activator, anti-aging agent, anti-scorching agent CTP, mixed fillers, silane coupling agent, vulcanization accelerator, vulcanizing agent etc. successively at 90 DEG C-110 DEG C in Banbury mixer, after banburying evenly, refining clot is opened in mill 50 DEG C-60 DEG C, and lower bar is parked.
(4) extrusion calendaring: will park adhesive tape and drop into pin cold feed extruder, and extrude, and be rolled into sheet material through rolling press with fluid pressure type wide cut head 50 DEG C-90 DEG C, after cutting edge cooling, does pad rolling with high-strength double-face separate-type paper and parks.
(5) vulcanization forming: lead out two-sided separate-type paper, imports drum vulcanizer 140 DEG C of-150 DEG C of vulcanization formings by calendered sheet, derive rolling.
The physical and mechanical properties being applied to the tungsten-based composite material sheet material of ray shield of gained and radiation protection performance as follows:
Embodiment 3
The tungsten-based composite material formula being applied to ray shield is:
The described preparation method being applied to the tungsten-based composite material of ray shield, the steps include:
(1) feed proportioning prepares: various raw material is weighed up quality by formula, and the pellet in anti-aging agent, vulcanization accelerator is broken into powdery.
(2) mixed fillers preparation: by the vacuum-drying in vacuum drying oven of tungsten powder, ground barium sulfate, and mix obtained mixed fillers in vacuum high-speed mixer.
(3) rubber compounding: add rubber, activator, anti-aging agent, anti-scorching agent CTP, mixed fillers, silane coupling agent, vulcanization accelerator, vulcanizing agent etc. successively at 90 DEG C-110 DEG C in Banbury mixer, after banburying evenly, refining clot is opened in mill 50 DEG C-60 DEG C, and lower bar is parked.
(4) extrusion calendaring: will park adhesive tape and drop into pin cold feed extruder, and extrude, and be rolled into sheet material through rolling press with fluid pressure type wide cut head 50 DEG C-90 DEG C, after cutting edge cooling, does pad rolling with high-strength double-face separate-type paper and parks.
(5) vulcanization forming: lead out two-sided separate-type paper, imports drum vulcanizer 140 DEG C of-150 DEG C of vulcanization formings by calendered sheet, derive rolling.
The physical and mechanical properties being applied to the tungsten-based composite material sheet material of ray shield of gained and radiation protection performance as follows:
Embodiment 4
The tungsten-based composite material formula being applied to ray shield is:
The described preparation method being applied to the tungsten-based composite material of ray shield, the steps include:
(1) feed proportioning prepares: various raw material is weighed up quality by formula, and the pellet in anti-aging agent, vulcanization accelerator is broken into powdery.
(2) filler preparation: by tungsten powder, gadolinium sesquioxide powder, ground barium sulfate, tungsten fiber vacuum-drying in vacuum drying oven.
(3) rubber compounding: add rubber, activator, anti-aging agent, anti-scorching agent CTP, mixed fillers, silane coupling agent, paraffin oil, vulcanization accelerator, vulcanizing agent etc. successively at 90 DEG C-110 DEG C in Banbury mixer, after banburying evenly, refining clot is opened in mill 50 DEG C-60 DEG C, and lower bar is parked.
(4) extrusion calendaring: will park adhesive tape and drop into pin cold feed extruder, and extrude, and be rolled into sheet material through rolling press with fluid pressure type wide cut head 50 DEG C-90 DEG C, after cutting edge cooling, does pad rolling with high-strength double-face separate-type paper and parks.
(5) vulcanization forming: lead out two-sided separate-type paper, imports drum vulcanizer 170 DEG C of-180 DEG C of vulcanization formings by calendered sheet, derive rolling.
The physical and mechanical properties being applied to the tungsten-based composite material sheet material of ray shield of gained and radiation protection performance as follows:
Claims (10)
1. be applied to a tungsten-based composite material for ray shield, by weight, comprise:
Rubber 100 weight part;
Tungsten powder 200 weight part-2000 weight part;
Tungsten fiber 0.5 weight part-50 weight part;
Ground barium sulfate 0.5 weight part-150 weight part and/or rareearth oxidate powder 0.5 weight part-250 weight part;
Compatilizer 0.5 weight part-6 weight part;
Activator 3 weight part-9 weight part;
Softening agent 0.5 weight part-50 weight part;
Anti-aging agent 0.5 weight part-3 weight part;
Scorch retarder 0.05 weight part-0.5 weight part;
Vulcanization accelerator 0.5 weight part-3 weight part;
Vulcanizing agent 0.5 weight part-3 weight part;
Wherein, described tungsten powder is a kind of tungsten powder of Fisher particle size 0.4 μm-20 μm or the mixture of several tungsten powder; Described tungsten fiber is diameter 10 μm-30 μm, a kind of tungsten fiber of length-to-diameter ratio 50-150 or the mixture of several tungsten fiber; Described ground barium sulfate is a kind of ground barium sulfate of Fisher particle size 0.1 μm-5 μm or the mixture of several ground barium sulfate; Described rareearth oxidate powder Fisher particle size is 0.4 μm-20 μm.
2. a kind of tungsten-based composite material being applied to ray shield according to claim 1, it is characterized in that, described rare earth oxide comprises at least one in Erbium trioxide, lanthanum trioxide, gadolinium sesquioxide, Neodymium trioxide, cerium oxide, Praseodymium trioxide, Samarium trioxide.
3. a kind of tungsten-based composite material being applied to ray shield according to claim 1, is characterized in that, described activator, anti-aging agent, scorch retarder, softening agent, compatilizer, vulcanization accelerator, vulcanizing agent, not containing lead element.
4. a kind of tungsten-based composite material being applied to ray shield according to claim 1 or 3, it is characterized in that, described activator contains zinc oxide.
5. the zinc oxide described in a kind of tungsten-based composite material being applied to ray shield according to claim 4, is characterized in that, described zinc oxide is indirect process zinc oxide.
6. a kind of tungsten-based composite material being applied to ray shield according to claim 1 or 3, is characterized in that, described scorch retarder is sulfonamide antiscorchiag agent.
7. be applied to the tungsten-based composite material of ray shield according to claim 6 one kind, it is characterized in that, described sulfonamide antiscorchiag agent is N-cyclohexyl thio phthalamide.
8. a kind of tungsten-based composite material being applied to ray shield according to claim 1 or 3, is characterized in that, described softening agent is the one in aromatic hydrocarbon oil, naphthenic oil or paraffin oil.
9. a kind of tungsten-based composite material being applied to ray shield according to claim 1 or 3, is characterized in that, described compatilizer is silane coupling agent.
10. a kind of preparation method being applied to the tungsten-based composite material of ray shield according to claim 1, the steps include:
(1) feed proportioning prepares: various raw material is weighed up quality by formula, and activator, anti-aging agent, scorch retarder, softening agent, compatilizer, vulcanization accelerator, vulcanizing agent pellet are broken into powdery respectively;
(2) mixed fillers preparation: by the vacuum-drying in vacuum drying oven of tungsten powder, tungsten fiber, ground barium sulfate, rare earth oxide, and mix obtained mixed fillers in vacuum high-speed mixer;
(3) rubber compounding: add rubber, activator, anti-aging agent, scorch retarder, mixed fillers, compatilizer, softening agent, vulcanization accelerator, vulcanizing agent successively in Banbury mixer, after banburying evenly, refining clot is opened in mill, and lower bar is parked;
(4) extrusion calendaring: will park adhesive tape and drop into pin cold feed extruder, and extrude, and be rolled into sheet material through rolling press with fluid pressure type wide cut head, after cutting edge cooling, does pad rolling with paper or cloth and parks;
(5) vulcanization forming: lead out two-sided separate-type paper, imports drum vulcanizer vulcanization forming by calendered sheet, derive rolling.
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| CN107910089A (en) * | 2017-11-17 | 2018-04-13 | 南京核安核能科技有限公司 | A kind of protective garment of the unleaded radiation of novel flexible |
| CN114334204A (en) * | 2021-11-16 | 2022-04-12 | 镇江华核装备有限公司 | A kind of ultra-light lead-free medical flexible X-ray shielding clothing and preparation method thereof |
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| CN104960129A (en) * | 2015-06-10 | 2015-10-07 | 湖南赛孚力高新科技有限公司 | Preparation method of flexible silica-based gamma shielding composite roll-type film |
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