CN112048109A - Radiation-proof flexible rubber and preparation process thereof - Google Patents
Radiation-proof flexible rubber and preparation process thereof Download PDFInfo
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- CN112048109A CN112048109A CN202010834729.4A CN202010834729A CN112048109A CN 112048109 A CN112048109 A CN 112048109A CN 202010834729 A CN202010834729 A CN 202010834729A CN 112048109 A CN112048109 A CN 112048109A
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- radiation
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- flexible rubber
- proof flexible
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- 229920001971 elastomer Polymers 0.000 title claims abstract description 41
- 239000005060 rubber Substances 0.000 title claims abstract description 41
- 238000002360 preparation method Methods 0.000 title claims abstract description 14
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 29
- 239000002041 carbon nanotube Substances 0.000 claims abstract description 27
- 229910021393 carbon nanotube Inorganic materials 0.000 claims abstract description 27
- 229920000126 latex Polymers 0.000 claims abstract description 27
- 239000004816 latex Substances 0.000 claims abstract description 27
- 239000000463 material Substances 0.000 claims abstract description 16
- 239000000945 filler Substances 0.000 claims abstract description 13
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000002002 slurry Substances 0.000 claims abstract description 8
- 238000004073 vulcanization Methods 0.000 claims abstract description 5
- 235000021355 Stearic acid Nutrition 0.000 claims abstract description 4
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 4
- 238000001035 drying Methods 0.000 claims abstract description 4
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims abstract description 4
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000008117 stearic acid Substances 0.000 claims abstract description 4
- 238000003756 stirring Methods 0.000 claims abstract description 4
- 239000011593 sulfur Substances 0.000 claims abstract description 4
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 4
- 238000005303 weighing Methods 0.000 claims abstract description 4
- 239000011787 zinc oxide Substances 0.000 claims abstract description 4
- 230000003712 anti-aging effect Effects 0.000 claims abstract description 3
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 3
- 230000018044 dehydration Effects 0.000 claims abstract description 3
- 238000006297 dehydration reaction Methods 0.000 claims abstract description 3
- 239000002270 dispersing agent Substances 0.000 claims abstract description 3
- 238000004519 manufacturing process Methods 0.000 claims abstract description 3
- 238000000465 moulding Methods 0.000 claims abstract description 3
- 238000007711 solidification Methods 0.000 claims abstract description 3
- 230000008023 solidification Effects 0.000 claims abstract description 3
- 239000000080 wetting agent Substances 0.000 claims abstract description 3
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 claims description 6
- 150000001875 compounds Chemical class 0.000 claims description 4
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 4
- 229910052721 tungsten Inorganic materials 0.000 claims description 4
- 239000010937 tungsten Substances 0.000 claims description 4
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 claims description 3
- 239000006229 carbon black Substances 0.000 claims description 3
- 229910052580 B4C Inorganic materials 0.000 claims description 2
- 239000005062 Polybutadiene Substances 0.000 claims description 2
- 239000002174 Styrene-butadiene Substances 0.000 claims description 2
- INAHAJYZKVIDIZ-UHFFFAOYSA-N boron carbide Chemical compound B12B3B4C32B41 INAHAJYZKVIDIZ-UHFFFAOYSA-N 0.000 claims description 2
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 claims description 2
- 229910052799 carbon Inorganic materials 0.000 claims description 2
- 229920001084 poly(chloroprene) Polymers 0.000 claims description 2
- 229920002857 polybutadiene Polymers 0.000 claims description 2
- 239000011115 styrene butadiene Substances 0.000 claims description 2
- 229920003048 styrene butadiene rubber Polymers 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 5
- 239000002861 polymer material Substances 0.000 abstract description 2
- 230000005855 radiation Effects 0.000 description 7
- 238000011160 research Methods 0.000 description 4
- 230000032683 aging Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000003963 antioxidant agent Substances 0.000 description 2
- 230000003078 antioxidant effect Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000010074 rubber mixing Methods 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000001768 carboxy methyl cellulose Substances 0.000 description 1
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 1
- 239000008112 carboxymethyl-cellulose Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 229910000464 lead oxide Inorganic materials 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000005025 nuclear technology Methods 0.000 description 1
- YEXPOXQUZXUXJW-UHFFFAOYSA-N oxolead Chemical class [Pb]=O YEXPOXQUZXUXJW-UHFFFAOYSA-N 0.000 description 1
- 239000001267 polyvinylpyrrolidone Substances 0.000 description 1
- 229920000036 polyvinylpyrrolidone Polymers 0.000 description 1
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
Images
Classifications
-
- 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
- C08L7/02—Latex
-
- 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
- C08K2003/2296—Oxides; Hydroxides of metals of zinc
-
- 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
-
- 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
- C08K2201/011—Nanostructured additives
-
- 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
Abstract
A radiation-proof flexible rubber and a preparation process thereof belong to the technical field of polymer material manufacture. The preparation process of the radiation-proof flexible rubber comprises the following steps: s1, weighing a certain amount of filler, zinc oxide, stearic acid, sulfur, an accelerator, an anti-aging agent, a wetting agent and a dispersing agent, adding water and sanding to prepare uniformly mixed filler slurry; s2, adding the filler slurry into the latex, and fully stirring to obtain pre-vulcanized latex; s3, laying a layer of prevulcanized latex in a mould, then placing at least one layer of shielding element-plated carbon nanotube material, laying a layer of prevulcanized latex between two adjacent layers of shielding element-plated carbon nanotube materials, finally laying a layer of prevulcanized latex, and carrying out solidification, dehydration, drying and vulcanization molding to obtain the radiation-proof flexible rubber. The radiation-proof flexible rubber prepared by the invention has the advantages of good shielding effect, good lead equivalent uniformity, small rubber density, good wear resistance and the like, has a wide application field, is simple in preparation method, and can be industrially produced.
Description
Technical Field
The invention relates to a technology in the field of polymer material manufacturing, in particular to radiation-proof flexible rubber and a preparation process thereof.
Background
With the social progress, the chance of exposure to rays is increased, and the problem of radiation safety is highlighted and paid much attention. The majority of researchers also do a lot of work in the research aspect of radiation protection materials and equipment, accumulate certain technology and experience, but far fail to meet the safety requirements brought by the development of the current nuclear technology.
The radiation-proof protective clothing and the radiation-proof sealing material for the human body are mainly lead clothes or lead rubber and the like. The lead rubber is rubber filled with lead oxide or lead salt in a large amount, and the common radiation-proof rubber has high hardness and poor flexibility and is inconvenient to wear or used for protecting products with complex structures. In order to widen the application field of the lead rubber, various scientific research workers research and develop flexible radiation-proof rubber, and an international research group led by scientists in Massachusetts finds that a small amount of carbon nanotubes are added into metal to enable the metal to resist damage caused by radiation, so that the radiation aging resistance of the rubber can be improved by adding the carbon nanotubes.
The Chinese patent application with the application number of 202010025115.1 discloses a preparation method of radiation-proof rubber, which is characterized in that a traditional rubber mixing technology is utilized, lead-plated carbon nanotubes are added into rubber to prepare the radiation-proof rubber, and although the purpose of not influencing the radiation-proof effect when the lead consumption is low is achieved, the phenomenon of uneven dispersion of a small amount of lead-plated carbon nanotubes still exists in the rubber mixing process, so that the lead equivalent unevenness is increased. The radiation-proof rubber prepared by the method has high hardness, and is not suitable for wearing or used for protecting products with complex structures.
In order to solve the problems in the prior art, the invention utilizes the surface plated with the lead carbon nano tube with the density less than that of lead to reduce the usage amount of lead in unit rubber and improve the radiation aging resistant strength of the rubber.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides the radiation-proof flexible rubber and the preparation process thereof, and the prepared radiation-proof flexible rubber has the advantages of good shielding effect, good lead equivalent uniformity, small rubber density, good wear resistance and the like.
The invention relates to a preparation process of radiation-proof flexible rubber, which comprises the following steps:
s1, weighing a certain amount of filler, zinc oxide, stearic acid, sulfur, an accelerator, an anti-aging agent, a wetting agent and a dispersing agent, adding water and sanding to prepare uniformly mixed filler slurry;
s2, adding the filler slurry into the latex, and fully stirring to obtain pre-vulcanized latex;
s3, laying a layer of prevulcanized latex in a mould, then placing at least one layer of shielding element-plated carbon nanotube material, laying a layer of prevulcanized latex between two adjacent layers of shielding element-plated carbon nanotube materials, finally laying a layer of prevulcanized latex, and carrying out solidification, dehydration, drying and vulcanization molding to obtain the radiation-proof flexible rubber.
Preferably, the filler is one or more of carbon black, boron carbide and barium sulfate.
Preferably, the latex is one or more of natural latex, styrene-butadiene latex, chloroprene rubber swelled with solvent and butadiene rubber swelled with solvent.
Preferably, the shielding element-plated carbon nanotube material has a weight ratio of shielding element to carbon of (0.1-10): 1.
further preferably, the shielding element is one or more of lead, a lead-containing compound, tungsten and a tungsten-containing compound; the carbon nanotube material is carbon nanotube paper or carbon nanotube yarn.
The invention relates to radiation-proof flexible rubber which comprises at least one layer of shielding element-plated carbon nanotube material and prevulcanized latex layers paved on two sides of the shielding element-plated carbon nanotube material.
Technical effects
Compared with the prior art, the invention has the following technical effects:
1) the carbon nanotube material plated with the shielding element is adopted, and the prevulcanized latex is compounded with the carbon nanotube material, so that the shielding element forms a shielding network with excellent compactness in rubber, a large amount of shielding elements are not required to be added, the protection performance is ensured, the weight is reduced, and the flexibility of the rubber is ensured; the carbon nano tube has electromagnetic shielding performance, and is beneficial to the flexible rubber to fully absorb different radiation;
2) the physical and mechanical properties and the ageing resistance of the rubber are not reduced by the addition of the radiation shielding structure.
Drawings
Fig. 1 is an SEM photograph of the lead-coated carbon nanotube paper of example 1.
Detailed Description
The invention is described in detail below with reference to the drawings and the detailed description. The experimental procedures, in which specific conditions are not specified in the examples, were carried out according to the conventional methods and conditions.
Example 1
The embodiment relates to a preparation process of radiation-proof flexible rubber, which comprises the following steps:
s1, weighing 5g of barium sulfate, 20g of carbon black, 5g of zinc oxide, 1g of stearic acid, 2.5g of sulfur, 1.5g of accelerator DM, 1.5g of accelerator EZ, 0.5g of antioxidant RD, 1.5g of antioxidant, 0.1g of carboxymethyl cellulose, 0.1g of polyvinylpyrrolidone and 65g of water, mixing, and treating for 30min by a sand mill to prepare filler slurry for later use;
s2, adding the filler slurry prepared in the step S1 into 166g of natural latex, and stirring and dispersing for 1h to obtain pre-vulcanized latex;
s3, laying a layer of pre-vulcanized latex in a mold, placing a layer of lead-plated carbon nanotube paper (first element in Suzhou) with the thickness of 1mm, pouring the pre-vulcanized latex, dehydrating and drying after the pre-vulcanized latex is solidified, and then placing the pre-vulcanized latex in a vulcanization mold for vulcanization to obtain the radiation-proof flexible rubber, and further preparing the wearable radiation-proof protector.
The lead-coated carbon nanotube paper used in step S3 has a coating thickness of 100nm, and the SEM photograph is shown in fig. 1, in which lead is uniformly distributed on the surface of the carbon nanotube to form a film.
The properties of the radiation-protective flexible rubber obtained in example 1 are shown in Table 1 below.
Table 1 comparison of properties of articles of the same thickness
It is to be emphasized that: the above embodiments are only preferred embodiments of the present invention, and are not intended to limit the present invention in any way, and all simple modifications, equivalent changes and modifications made to the above embodiments according to the technical spirit of the present invention are within the scope of the technical solution of the present invention.
Claims (6)
1. A preparation process of radiation-proof flexible rubber is characterized by comprising the following steps:
s1, weighing a certain amount of filler, zinc oxide, stearic acid, sulfur, an accelerator, an anti-aging agent, a wetting agent and a dispersing agent, adding water and sanding to prepare uniformly mixed filler slurry;
s2, adding the filler slurry into the latex, and fully stirring to obtain pre-vulcanized latex;
s3, laying a layer of prevulcanized latex in a mould, then placing at least one layer of shielding element-plated carbon nanotube material, laying a layer of prevulcanized latex between two adjacent layers of shielding element-plated carbon nanotube materials, finally laying a layer of prevulcanized latex, and carrying out solidification, dehydration, drying and vulcanization molding to obtain the radiation-proof flexible rubber.
2. The preparation process of the radiation-proof flexible rubber according to claim 1, wherein the filler is one or more of carbon black, boron carbide and barium sulfate.
3. The process for preparing the radiation-proof flexible rubber according to claim 1, wherein the latex is one or more of natural latex, styrene-butadiene latex, solvent-swollen chloroprene rubber and solvent-swollen butadiene rubber.
4. The preparation process of the radiation-proof flexible rubber as claimed in claim 1, wherein the shielding element-plated carbon nanotube material has a weight ratio of shielding element to carbon of (0.1-10): 1.
5. the preparation process of the radiation-proof flexible rubber as claimed in claim 4, wherein the shielding element is one or more of lead, a lead-containing compound, tungsten and a tungsten-containing compound.
6. The radiation-proof flexible rubber is characterized by comprising at least one layer of shielding element-plated carbon nanotube material and prevulcanized latex layers paved on two sides of the shielding element-plated carbon nanotube material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010834729.4A CN112048109A (en) | 2020-08-18 | 2020-08-18 | Radiation-proof flexible rubber and preparation process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010834729.4A CN112048109A (en) | 2020-08-18 | 2020-08-18 | Radiation-proof flexible rubber and preparation process thereof |
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| Publication Number | Publication Date |
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| CN112048109A true CN112048109A (en) | 2020-12-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010834729.4A Pending CN112048109A (en) | 2020-08-18 | 2020-08-18 | Radiation-proof flexible rubber and preparation process thereof |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106009944A (en) * | 2016-06-30 | 2016-10-12 | 中国工程物理研究院材料研究所 | Element gradient combined anti-radiation rubber product and preparation method thereof |
| CN206413353U (en) * | 2016-09-22 | 2017-08-15 | 东莞市千洪电子有限公司 | A kind of electromagnetic shielding material |
| CN108586777A (en) * | 2018-04-19 | 2018-09-28 | 孙海 | A kind of preparation method of unleaded anti-ray radiation rubber composite material |
| CN108690274A (en) * | 2018-06-20 | 2018-10-23 | 万力轮胎股份有限公司 | A kind of radiation protection compounded latex and preparation method thereof, application and radiation-resistant gloves |
| CN111154151A (en) * | 2020-01-10 | 2020-05-15 | 苏州第一元素纳米技术有限公司 | Preparation method of radiation-proof rubber |
-
2020
- 2020-08-18 CN CN202010834729.4A patent/CN112048109A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106009944A (en) * | 2016-06-30 | 2016-10-12 | 中国工程物理研究院材料研究所 | Element gradient combined anti-radiation rubber product and preparation method thereof |
| CN206413353U (en) * | 2016-09-22 | 2017-08-15 | 东莞市千洪电子有限公司 | A kind of electromagnetic shielding material |
| CN108586777A (en) * | 2018-04-19 | 2018-09-28 | 孙海 | A kind of preparation method of unleaded anti-ray radiation rubber composite material |
| CN108690274A (en) * | 2018-06-20 | 2018-10-23 | 万力轮胎股份有限公司 | A kind of radiation protection compounded latex and preparation method thereof, application and radiation-resistant gloves |
| CN111154151A (en) * | 2020-01-10 | 2020-05-15 | 苏州第一元素纳米技术有限公司 | Preparation method of radiation-proof rubber |
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Application publication date: 20201208 |