CN107556756A - A kind of nuclear power station in-pile instrument thimble assembly elastomeric material - Google Patents
A kind of nuclear power station in-pile instrument thimble assembly elastomeric material Download PDFInfo
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- CN107556756A CN107556756A CN201710834078.7A CN201710834078A CN107556756A CN 107556756 A CN107556756 A CN 107556756A CN 201710834078 A CN201710834078 A CN 201710834078A CN 107556756 A CN107556756 A CN 107556756A
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Abstract
The invention discloses a kind of nuclear power station in-pile instrument thimble assembly elastomeric material, its raw material includes by weight：50 70 parts of methyl vinyl phenyl silicon rubber, 30 50 parts of neoprene, 20 40 parts of nitrile rubber, 24 parts of tetraethyl orthosilicate, 0.5 0.9 parts of triethanolamine, 100 120 parts of filler, 0.3 0.5 parts of silane coupler, 0.2 0.5 parts of Karst catalyst, 24 parts of age resistor.Modified coconut shell flour is prepared using following technique：By sodium methoxide, polyethylene glycol 200, ethyl oleate, heat up, be stirred under vacuum, add coconut shell flour, water stirring, filtering, washing, add Titanium Nitrate, urea, water and be well mixed, be sent into hydrothermal reaction kettle interior sealing, heating carries out hydro-thermal reaction, cooling, filter, washing, be dried to obtain modified coconut shell flour.
Description
Technical field
The present invention relates to technical field of rubber material, more particularly to a kind of nuclear power station in-pile instrument thimble assembly rubber material
Material.
Background technology
In nuclear power station normal course of operation, reactor core internal high temperature, high pressure, high corrosion and intense radiation.Work as reactor
Power is run in more than the 25% of rated power, it is necessary to utilize the current reactor of the monitoring system continuous monitoring of heap core inner
Safety allowance, and correspondingly control reactivity.Go out for the deficient cold degree of post accident monitoring core exit temperature, it is necessary to measure reactor core
The fluid temperature of mouth, the life requirements of in-pile instrument thimble assembly are up to 20 years, the rubber that in-pile instrument thimble assembly uses at present
Material is high to thermal stability requirement, is to ensure the important survey tool that nuclear plant safety reliably starts, run, how to improve
The heat endurance of in-pile instrument thimble assembly elastomeric material, turns into the current technical issues that need to address.
The content of the invention
Based on technical problem existing for background technology, the present invention proposes a kind of nuclear power station in-pile instrument thimble assembly and uses rubber
Glue material, not only excellent fireproof performance, heat endurance is good, and hardness is high, not easy to break, and resistance to tearing can be fabulous.
A kind of nuclear power station in-pile instrument thimble assembly elastomeric material proposed by the present invention, its raw material include by weight：
Methyl vinyl phenyl silicon rubber 50-70 parts, neoprene 30-50 parts, nitrile rubber 20-40 parts, tetraethyl orthosilicate 2-4 parts,
Triethanolamine 0.5-0.9 parts, filler 100-120 parts, silane coupler 0.3-0.5 parts, Karst catalyst 0.2-0.5 parts,
Age resistor 2-4 parts.
Preferably, age resistor includes by weight：Antioxidant 4020 2-4 parts, age resistor ODA0.6-1 parts, age resistor
DFC-34 1.5-2.5 parts.
Preferably, filler includes by weight：Modified coconut shell flour 35-55 parts, expanded graphite 35-45 parts, melamine
Resin 20-30 parts, mica powder 4-8 parts, vermiculite power 6-12 parts, sepiolite powder 5-9 parts.
Preferably, modified coconut shell flour is prepared using following technique：By sodium methoxide, polyethylene glycol 200, ethyl oleate, heat up,
It is stirred under vacuum, adds coconut shell flour, water stirring, filter, washing, add Titanium Nitrate, urea, water and be well mixed, be sent into hydro-thermal reaction
Kettle interior sealing, heating carry out hydro-thermal reaction, cool, and filter, and washing, are dried to obtain modified coconut shell flour.
Preferably, modified coconut shell flour is prepared using following technique：By weight by 8-16 parts sodium methoxide, the poly- second of 40-60 parts
Glycol 200,20-40 part ethyl oleates, heat up, be stirred under vacuum, add 40-50 parts coconut shell flour, the stirring of 40-50 parts water, filtering, wash
Wash, add 6-10 parts Titanium Nitrates, 4-8 parts urea, 130-150 part water and be well mixed, be sent into hydrothermal reaction kettle interior sealing, heat up into
Water-filling thermal response, cool, filter, washing, be dried to obtain modified coconut shell flour.
Preferably, modified coconut shell flour is prepared using following technique：By weight by 8-16 parts sodium methoxide, the poly- second of 40-60 parts
Glycol 200,20-40 part ethyl oleates, 120-126 DEG C is warming up to, is stirred under vacuum 40-50min, vacuum pressure 4-8Pa, added
40-50 parts coconut shell flour, 40-50 parts water stirring 4-6h, mixing speed 1600-2000r/min, whipping temp is 80-88 DEG C, mistake
Filter, washing, add 6-10 parts Titanium Nitrate, 4-8 parts urea, 130-150 part water and be well mixed, be sent into hydrothermal reaction kettle interior sealing,
200-210 DEG C of hydro-thermal reaction 4-8h is warming up to, is cooled, is filtered, washing, is dried to obtain modified coconut shell flour.
The present invention using methyl vinyl phenyl silicon rubber, neoprene, nitrile rubber as base-material, be aided with tetraethyl orthosilicate,
Triethanolamine is crosslinking agent, coordinates silane coupler to coordinate, not only environmentally friendly, and good flame retardation effect after crosslinking, thermal stability
Excellent, mechanical property is good；In modified coconut shell flour, polyethylene glycol 200 is under the cooperation of sodium methoxide, and ethyl oleate esterification,
Reaction temperature is low, and the time is short, and wetability is good, and surface-active is high, can effectively promote coconut shell flour to disperse in water, in Titanium Nitrate, urine
Hydro-thermal reaction under the cooperation of element, coconut shell flour are swelled, and active material can be efficiently entering inside coconut shell flour, and chimeric degree is high, with
Expanded graphite, melmac, mica powder, vermiculite power, sepiolite powder combination degree are high, and making the present invention, not only fire resistance is excellent
Different, heat endurance is good, and hardness is high, not easy to break, and resistance to tearing can be fabulous.
For the present invention after 200 DEG C × 24h thermal ageing tests, its hardness, tensile strength and elongation at break still keep preferable
Level, its performance remains to keep normal level particularly after 250 DEG C × 72h high temperature ageings, and ageing-resistant performance is extremely excellent.
Embodiment
Below, technical scheme is described in detail by specific embodiment.
Embodiment 1
A kind of nuclear power station in-pile instrument thimble assembly elastomeric material, its raw material include by weight：Methyl ethylene benzene
50 parts of base silicon rubber, 50 parts of neoprene, 20 parts of nitrile rubber, 4 parts of tetraethyl orthosilicate, 0.5 part of triethanolamine, filler 120
Part, 0.3 part of silane coupler, 0.5 part of Karst catalyst, 2 parts of age resistor.
Embodiment 2
A kind of nuclear power station in-pile instrument thimble assembly elastomeric material, its raw material include by weight：Methyl ethylene benzene
70 parts of base silicon rubber, 30 parts of neoprene, 40 parts of nitrile rubber, 2 parts of tetraethyl orthosilicate, 0.9 part of triethanolamine, filler 100
Part, 0.5 part of silane coupler, 0.2 part of Karst catalyst, 4 parts of age resistor.
Filler includes by weight：Modified 54 parts of coconut shell flour, 37 parts of expanded graphite, 27 parts of melmac, mica
5 parts of powder, 11 parts of vermiculite power, 6 parts of sepiolite powder.
Modified coconut shell flour is prepared using following technique：By sodium methoxide, polyethylene glycol 200, ethyl oleate, heating, vacuum is stirred
Mix, add coconut shell flour, water stirring, filter, washing, add Titanium Nitrate, urea, water and be well mixed, be sent into close in hydrothermal reaction kettle
Envelope, heating carry out hydro-thermal reaction, cool, and filter, and washing, are dried to obtain modified coconut shell flour.
Embodiment 3
A kind of nuclear power station in-pile instrument thimble assembly elastomeric material, its raw material include by weight：Methyl ethylene benzene
55 parts of base silicon rubber, 45 parts of neoprene, 25 parts of nitrile rubber, 3.5 parts of tetraethyl orthosilicate, 0.6 part of triethanolamine, filler
115 parts, 0.35 part of silane coupler, 0.4 part of Karst catalyst, 2.5 parts of age resistor.
Age resistor includes by weight：2 parts of antioxidant 4020,1 part of age resistor ODA, antioxidant D FC-341.5 parts.Fill out
Fill agent includes by weight：Modified 55 parts of coconut shell flour, 35 parts of expanded graphite, 30 parts of melmac, 4 parts of mica powder, vermiculite
12 parts of powder, 5 parts of sepiolite powder.
Modified coconut shell flour is prepared using following technique：By weight by 12 parts of sodium methoxides, 50 parts of polyethylene glycol 200s, 30 parts
Ethyl oleate, heat up, be stirred under vacuum, add 45 parts of coconut shell flours, the stirring of 45 parts of water, filter, washing, add 8 parts of Titanium Nitrates, 6 parts
Urea, 140 parts of water are well mixed, and are sent into hydrothermal reaction kettle interior sealing, and heating carries out hydro-thermal reaction, cools, and filters, and washs, and does
It is dry to obtain being modified coconut shell flour.
Embodiment 4
A kind of nuclear power station in-pile instrument thimble assembly elastomeric material, its raw material include by weight：Methyl ethylene benzene
65 parts of base silicon rubber, 35 parts of neoprene, 35 parts of nitrile rubber, 2.5 parts of tetraethyl orthosilicate, 0.8 part of triethanolamine, filler
105 parts, 0.45 part of silane coupler, 0.3 part of Karst catalyst, 3.5 parts of age resistor.
Age resistor includes by weight：4 parts of antioxidant 4020, age resistor ODA0.6 parts, antioxidant D FC-342.5 parts.Fill out
Fill agent includes by weight：Modified 35 parts of coconut shell flour, 45 parts of expanded graphite, 20 parts of melmac, 8 parts of mica powder, vermiculite
6 parts of powder, 9 parts of sepiolite powder.
Modified coconut shell flour is prepared using following technique：By weight by 8 parts of sodium methoxides, 60 parts of polyethylene glycol 200s, 20 parts of oil
Acetoacetic ester, 126 DEG C are warming up to, are stirred under vacuum 40min, vacuum pressure 8Pa, add 40 parts of coconut shell flours, 50 parts of water stirring 4h, stirring
Speed is 2000r/min, and whipping temp is 80 DEG C, is filtered, washing, and 10 parts of Titanium Nitrates of addition, 4 parts of urea, 150 parts of water mixing are equal
It is even, hydrothermal reaction kettle interior sealing is sent into, is warming up to 200 DEG C of hydro-thermal reaction 8h, is cooled, is filtered, washing, is dried to obtain modified coconut husk
Powder.
Embodiment 5
A kind of nuclear power station in-pile instrument thimble assembly elastomeric material, its raw material include by weight：Methyl ethylene benzene
60 parts of base silicon rubber, 40 parts of neoprene, 30 parts of nitrile rubber, 3 parts of tetraethyl orthosilicate, 0.7 part of triethanolamine, filler 110
Part, 0.4 part of silane coupler, 0.35 part of Karst catalyst, 3 parts of age resistor.
Age resistor includes by weight：3 parts of antioxidant 4020, age resistor ODA0.8 parts, antioxidant D FC-342 parts.Filling
Agent includes by weight：Modified 45 parts of coconut shell flour, 40 parts of expanded graphite, 25 parts of melmac, 6 parts of mica powder, vermiculite power 9
Part, 7 parts of sepiolite powder.
Modified coconut shell flour is prepared using following technique：By weight by 16 parts of sodium methoxides, 40 parts of polyethylene glycol 200s, 40 parts
Ethyl oleate, 120 DEG C are warming up to, are stirred under vacuum 50min, vacuum pressure 4Pa, added 50 parts of coconut shell flours, 40 parts of water stirring 6h, stir
It is 1600r/min to mix speed, and whipping temp is 88 DEG C, is filtered, washing, adds 6 parts of Titanium Nitrates, 8 parts of urea, 130 parts of water mixing
Uniformly, hydrothermal reaction kettle interior sealing is sent into, is warming up to 210 DEG C of hydro-thermal reaction 4h, is cooled, is filtered, washing, is dried to obtain modified coconut palm
Shell powder.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art the invention discloses technical scope in, technique according to the invention scheme and its
Inventive concept is subject to equivalent substitution or change, should all be included within the scope of the present invention.
Claims (6)
1. a kind of nuclear power station in-pile instrument thimble assembly elastomeric material, it is characterised in that its raw material includes by weight：Methyl
Ethenylphenyl silicon rubber 50-70 parts, neoprene 30-50 parts, nitrile rubber 20-40 parts, tetraethyl orthosilicate 2-4 parts, three second
Hydramine 0.5-0.9 parts, filler 100-120 parts, silane coupler 0.3-0.5 parts, Karst catalyst 0.2-0.5 parts, prevent old
Agent 2-4 parts.
2. nuclear power station in-pile instrument thimble assembly elastomeric material according to claim 1, it is characterised in that age resistor is by weight
Amount part includes：Antioxidant 4020 2-4 parts, age resistor ODA 0.6-1 parts, antioxidant D FC-341.5-2.5 parts.
3. nuclear power station in-pile instrument thimble assembly elastomeric material according to claim 1 or claim 2, it is characterised in that filler
Include by weight：Modified coconut shell flour 35-55 parts, expanded graphite 35-45 parts, melmac 20-30 parts, mica powder 4-8
Part, vermiculite power 6-12 parts, sepiolite powder 5-9 parts.
4. according to any one of the claim 1-3 nuclear power station in-pile instrument thimble assembly elastomeric materials, it is characterised in that change
Property coconut shell flour using following technique prepare：By sodium methoxide, polyethylene glycol 200, ethyl oleate, heat up, be stirred under vacuum, add coconut husk
Powder, water stirring, are filtered, washing, are added Titanium Nitrate, urea, water and are well mixed, and are sent into hydrothermal reaction kettle interior sealing, and heating is carried out
Hydro-thermal reaction, cool, filter, washing, be dried to obtain modified coconut shell flour.
5. according to the nuclear power station in-pile instrument thimble assembly elastomeric material of claim 3 or 4, it is characterised in that modified coconut palm
Shell powder is prepared using following technique：By weight by 8-16 parts sodium methoxide, 40-60 parts polyethylene glycol 200,20-40 part oleic acid second
Ester, heat up, vacuum stirring, add 40-50 parts coconut shell flour, the stirring of 40-50 parts water, filter, washing, addition 6-10 parts Titanium Nitrate,
4-8 parts urea, 130-150 part water are well mixed, and are sent into hydrothermal reaction kettle interior sealing, and heating carries out hydro-thermal reaction, cooling, mistake
Filter, washing, is dried to obtain modified coconut shell flour.
6. according to any one of the claim 3-5 nuclear power station in-pile instrument thimble assembly elastomeric materials, it is characterised in that change
Property coconut shell flour using following technique prepare：By weight by 8-16 parts sodium methoxide, 40-60 parts polyethylene glycol 200,20-40 parts oil
Acetoacetic ester, 120-126 DEG C is warming up to, is stirred under vacuum 40-50min, vacuum pressure 4-8Pa, add 40-50 parts coconut shell flour, 40-50
Part water stirring 4-6h, mixing speed 1600-2000r/min, whipping temp is 80-88 DEG C, is filtered, washing, addition 6-10 parts
Titanium Nitrate, 4-8 parts urea, 130-150 part water are well mixed, and are sent into hydrothermal reaction kettle interior sealing, are warming up to 200-210 DEG C of hydro-thermal
4-8h is reacted, is cooled, is filtered, washing, is dried to obtain modified coconut shell flour.
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| CN201710834078.7A CN107556756A (en) | 2017-09-15 | 2017-09-15 | A kind of nuclear power station in-pile instrument thimble assembly elastomeric material |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111892712A (en) * | 2020-07-24 | 2020-11-06 | 天鼎联创密封技术（北京）有限公司 | Flexible graphite-silicon nitrogen polymer elastic material and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105885422A (en) * | 2016-05-20 | 2016-08-24 | 安徽新科电缆集团股份有限公司 | Flame-retardant cable sheath and preparation method thereof |
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2017
- 2017-09-15 CN CN201710834078.7A patent/CN107556756A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105885422A (en) * | 2016-05-20 | 2016-08-24 | 安徽新科电缆集团股份有限公司 | Flame-retardant cable sheath and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111892712A (en) * | 2020-07-24 | 2020-11-06 | 天鼎联创密封技术（北京）有限公司 | Flexible graphite-silicon nitrogen polymer elastic material and preparation method thereof |
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