CN112143067A - Polyolefin composite modified shielding material for neutron shielding device - Google Patents
Polyolefin composite modified shielding material for neutron shielding device Download PDFInfo
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- CN112143067A CN112143067A CN201910598135.5A CN201910598135A CN112143067A CN 112143067 A CN112143067 A CN 112143067A CN 201910598135 A CN201910598135 A CN 201910598135A CN 112143067 A CN112143067 A CN 112143067A
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- shielding
- composite modified
- neutron
- polyolefin
- neutron shielding
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- 239000000463 material Substances 0.000 title claims abstract description 23
- 239000002131 composite material Substances 0.000 title claims abstract description 22
- 229920000098 polyolefin Polymers 0.000 title claims abstract description 18
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 21
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 16
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 16
- 239000007822 coupling agent Substances 0.000 claims abstract description 16
- 239000011159 matrix material Substances 0.000 claims abstract description 7
- 239000002994 raw material Substances 0.000 claims abstract description 7
- 238000007493 shaping process Methods 0.000 claims abstract description 7
- 239000006057 Non-nutritive feed additive Substances 0.000 claims abstract description 6
- -1 polypropylene Polymers 0.000 claims description 18
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 claims description 9
- 239000004698 Polyethylene Substances 0.000 claims description 8
- 229920000573 polyethylene Polymers 0.000 claims description 8
- 239000004743 Polypropylene Substances 0.000 claims description 6
- 229920001155 polypropylene Polymers 0.000 claims description 6
- 229910052580 B4C Inorganic materials 0.000 claims description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 4
- JKIJEFPNVSHHEI-UHFFFAOYSA-N Phenol, 2,4-bis(1,1-dimethylethyl)-, phosphite (3:1) Chemical compound CC(C)(C)C1=CC(C(C)(C)C)=CC=C1OP(OC=1C(=CC(=CC=1)C(C)(C)C)C(C)(C)C)OC1=CC=C(C(C)(C)C)C=C1C(C)(C)C JKIJEFPNVSHHEI-UHFFFAOYSA-N 0.000 claims description 4
- BGYHLZZASRKEJE-UHFFFAOYSA-N [3-[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxy]-2,2-bis[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxymethyl]propyl] 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)OCC(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 BGYHLZZASRKEJE-UHFFFAOYSA-N 0.000 claims description 4
- INAHAJYZKVIDIZ-UHFFFAOYSA-N boron carbide Chemical compound B12B3B4C32B41 INAHAJYZKVIDIZ-UHFFFAOYSA-N 0.000 claims description 4
- JKWMSGQKBLHBQQ-UHFFFAOYSA-N diboron trioxide Chemical compound O=BOB=O JKWMSGQKBLHBQQ-UHFFFAOYSA-N 0.000 claims description 4
- 229910052739 hydrogen Inorganic materials 0.000 claims description 4
- 239000001257 hydrogen Substances 0.000 claims description 4
- 229920002050 silicone resin Polymers 0.000 claims description 4
- 239000004699 Ultra-high molecular weight polyethylene Substances 0.000 claims description 3
- 229920000785 ultra high molecular weight polyethylene Polymers 0.000 claims description 3
- 229910052582 BN Inorganic materials 0.000 claims description 2
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 claims description 2
- 229920000089 Cyclic olefin copolymer Polymers 0.000 claims description 2
- 239000004713 Cyclic olefin copolymer Substances 0.000 claims description 2
- 239000003607 modifier Substances 0.000 claims 1
- 238000013461 design Methods 0.000 abstract description 5
- 229920001577 copolymer Polymers 0.000 description 4
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 229910052796 boron Inorganic materials 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 241000282414 Homo sapiens Species 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005025 nuclear technology Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/06—Polyethene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/12—Polypropene
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
- G21F1/00—Shielding characterised by the composition of the materials
- G21F1/02—Selection of uniform shielding materials
- G21F1/10—Organic substances; Dispersions in organic carriers
- G21F1/103—Dispersions in organic carriers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/068—Ultra high molecular weight polyethylene
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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)
- Dispersion Chemistry (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a polyolefin composite modified shielding material for a neutron shielding device, and relates to the technical field of shielding materials; the composite material comprises the following components in percentage by mass: 65-94.5 wt% of polyolefin matrix material, 5-30 wt% of shielding functional agent and 0.5-5 wt% of processing aid; the processing aid comprises an antioxidant, a coupling agent and a release agent, and the mass ratio of the antioxidant to the coupling agent to the release agent is 2: 5: 3; mixing the raw materials according to the proportion, hot-press forming, demoulding and shaping. The neutron shielding material has the characteristics of excellent neutron shielding performance, high density, high heat-resistant temperature, excellent mechanical property, long service cycle and the like, and completely meets the design and application requirements of a neutron shielding device on the material.
Description
Technical Field
The invention relates to the technical field of shielding materials, in particular to a polyolefin composite modified shielding material for a neutron shielding device.
Background
The application of nuclear technology has been extended to various fields such as military, medicine, industry and the like, the probability of various nuclear radiation rays contacted by human beings is greatly increased, and therefore, in order to ensure the health of workers and the safe and effective utilization of nuclear energy, effective shielding and protection of the nuclear radiation rays are needed.
In recent years, shielding materials using polyethylene as a matrix, including boron-containing polyethylene and lead boron polyethylene, have been prepared for neutron ray shielding research. But because of the shielding material taking polyethylene as a matrix alone, the heat-resistant temperature range (80-100 ℃) is lower; meanwhile, the lead-boron-polyethylene material is poor in environmental friendliness due to lead, and adverse effects are generated on the environment and personnel in the using process, so that improvement is urgently needed.
Disclosure of Invention
The invention aims to provide the polyolefin composite modified shielding material for the neutron shielding device, which has the characteristics of simple structure, reasonable design and convenient use, has excellent neutron shielding performance, high density, high heat-resistant temperature, excellent mechanical property, long service cycle and the like, and completely meets the design and application requirements of the neutron shielding device on the material.
In order to achieve the purpose, the invention adopts the technical scheme that: the composite material comprises the following components in percentage by mass: 65-94.5 wt% of polyolefin matrix material, 5-30 wt% of shielding functional agent and 0.5-5 wt% of processing aid; the processing aid comprises an antioxidant, a coupling agent and a release agent, and the mass ratio of the antioxidant to the coupling agent to the release agent is 2: 5: 3; mixing the raw materials according to the proportion, hot-press forming, demoulding and shaping.
Furthermore, the polyolefin matrix material is a composite modified substance of two or more of polypropylene, polyethylene, ultrahigh molecular weight polyethylene and cyclic olefin copolymer.
Further, the shielding functional agent is one or a combination of more of boron trioxide, boron nitride, boron carbide and carborane.
Further, the antioxidant is one or more of Irganox1010, FB1520, 2002, PS802FL and Irgafos 168.
Further, the coupling agent is one or more of KH602, KH792, KH902, KH580 and KH 560.
Further, the release agent is one or a combination of more of siloxane compound, methyl silicone oil, hydrogen-containing methyl silicone oil and silicone resin.
After adopting the structure, the invention has the beneficial effects that: the polyolefin composite modified shielding material for the neutron shielding device has the characteristics of excellent neutron shielding performance, high density, high heat-resistant temperature, excellent mechanical property, long service cycle and the like, and completely meets the design and application requirements of the neutron shielding device on the material.
Detailed Description
The technical solution adopted in the present embodiment (embodiment one) is: the composite material comprises the following components in percentage by mass: 20 wt% of polypropylene, 39 wt% of ultra-high molecular weight polyethylene, 20 wt% of cycloolefin copolymer, 20 wt% of boron carbide, 0.2 wt% of antioxidant, 0.5 wt% of coupling agent and 0.3 wt% of release agent; mixing the raw materials according to the proportion, hot-press forming, demoulding and shaping.
Further, the antioxidant is Irganox 1010.
Further, the coupling agent is a combination of KH580 and KH 560.
Further, the release agent is a combination of methyl silicone oil, hydrogen-containing methyl silicone oil and silicone resin.
After adopting above-mentioned structure, this embodiment beneficial effect does: the polyolefin composite modified shielding material for the neutron shielding device has the characteristics of excellent neutron shielding performance, high density, high heat-resistant temperature, excellent mechanical property, long service cycle and the like, and completely meets the design and application requirements of the neutron shielding device on the material.
Example two:
the technical scheme adopted by the embodiment is as follows: the composite material comprises the following components in percentage by mass: 20 wt% of polypropylene, 39 wt% of polyethylene, 20 wt% of cycloolefin copolymer, 20 wt% of boron carbide, 0.2 wt% of antioxidant, 0.5 wt% of coupling agent and 0.3 wt% of release agent; mixing the raw materials according to the proportion, hot-press forming, demoulding and shaping.
Further, the antioxidant is a combination of FB1520, 2002 and PS802 FL.
Further, the coupling agent is a combination of KH902, KH580 and KH 560.
Further, the release agent is a combination of siloxane compounds, methyl silicone oil, hydrogen-containing methyl silicone oil and silicone resin.
Example three:
the technical scheme adopted by the embodiment is as follows: the composite material comprises the following components in percentage by mass: 30 wt% of polypropylene, 15 wt% of cycloolefin copolymer, 24 wt% of carborane, 0.2 wt% of antioxidant, 0.5 wt% of coupling agent and 0.3 wt% of release agent; mixing the raw materials according to the proportion, hot-press forming, demoulding and shaping.
Furthermore, the antioxidant is a combination of Irganox1010, FB1520, 2002, PS802FL and Irgafos 168.
Further, the coupling agent is KH 560.
Further, the release agent is a combination of a siloxane compound and hydrogenous methyl silicone oil.
Example four:
the technical scheme adopted by the embodiment is as follows: the composite material comprises the following components in percentage by mass: 50 wt% of polypropylene, 24 wt% of cycloolefin copolymer, 25 wt% of carborane, 0.2 wt% of antioxidant, 0.5 wt% of coupling agent and 0.3 wt% of release agent; mixing the raw materials according to the proportion, hot-press forming, demoulding and shaping.
Further, the antioxidant is Irgafos 168.
Further, the coupling agent is KH 602.
Further, the release agent is a siloxane compound.
The above description is only for the purpose of illustrating the technical solutions of the present invention and not for the purpose of limiting the same, and other modifications or equivalent substitutions made by those skilled in the art to the technical solutions of the present invention should be covered within the scope of the claims of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (6)
1. The polyolefin composite modified shielding material for the neutron shielding device is characterized in that: the composite material comprises the following components in percentage by mass: 65-94.5 wt% of polyolefin matrix material, 5-30 wt% of shielding functional agent and 0.5-5 wt% of processing aid; the processing aid comprises an antioxidant, a coupling agent and a release agent, and the mass ratio of the antioxidant to the coupling agent to the release agent is 2: 5: 3; mixing the raw materials according to the proportion, hot-press forming, demoulding and shaping.
2. The polyolefin composite modified shielding material for neutron shielding devices of claim 1, wherein: the polyolefin matrix material is a composite modifier of two or more of polypropylene, polyethylene, ultrahigh molecular weight polyethylene and cyclic olefin copolymer.
3. The polyolefin composite modified shielding material for neutron shielding devices of claim 1, wherein: the shielding functional agent is one or a combination of more of diboron trioxide, boron nitride, boron carbide and carborane.
4. The polyolefin composite modified shielding material for neutron shielding devices of claim 1, wherein: the antioxidant is one or more of Irganox1010, FB1520, 2002, PS802FL and Irgafos 168.
5. The polyolefin composite modified shielding material for neutron shielding devices of claim 1, wherein: the coupling agent is one or a combination of KH602, KH792, KH902, KH580 and KH 560.
6. The polyolefin composite modified shielding material for neutron shielding devices of claim 1, wherein: the release agent is one or a combination of more of siloxane compound, methyl silicone oil, hydrogen-containing methyl silicone oil and silicone resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910598135.5A CN112143067A (en) | 2019-06-28 | 2019-06-28 | Polyolefin composite modified shielding material for neutron shielding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910598135.5A CN112143067A (en) | 2019-06-28 | 2019-06-28 | Polyolefin composite modified shielding material for neutron shielding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112143067A true CN112143067A (en) | 2020-12-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910598135.5A Pending CN112143067A (en) | 2019-06-28 | 2019-06-28 | Polyolefin composite modified shielding material for neutron shielding device |
Country Status (1)
| Country | Link |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103426492A (en) * | 2012-05-18 | 2013-12-04 | 中国科学院高能物理研究所 | Neutron shielding material and preparation process |
| CN103724760A (en) * | 2013-12-06 | 2014-04-16 | 中国工程物理研究院化工材料研究所 | Neutron-resistant radiation shield plate and preparation method thereof |
| CN104610637A (en) * | 2015-01-19 | 2015-05-13 | 中国船舶重工集团公司第七一九研究所 | Processing method of boron-containing ultra-high molecular weight polyethylene board |
-
2019
- 2019-06-28 CN CN201910598135.5A patent/CN112143067A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103426492A (en) * | 2012-05-18 | 2013-12-04 | 中国科学院高能物理研究所 | Neutron shielding material and preparation process |
| CN103724760A (en) * | 2013-12-06 | 2014-04-16 | 中国工程物理研究院化工材料研究所 | Neutron-resistant radiation shield plate and preparation method thereof |
| CN104610637A (en) * | 2015-01-19 | 2015-05-13 | 中国船舶重工集团公司第七一九研究所 | Processing method of boron-containing ultra-high molecular weight polyethylene board |
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Application publication date: 20201229 |