CN102504545B - High-density fire-proof silicone rubber and preparation method thereof - Google Patents
High-density fire-proof silicone rubber and preparation method thereof Download PDFInfo
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Abstract
The invention discloses a high-density fire-proof silicone rubber and a preparation method thereof. The high-density fire-proof silicone rubber is formed by mixing a component A and a component B according to a volume ratio of 1:1 and curing the mixture at a temperature of between 15 and 40 DEG C, wherein the component A consists of hydroxy silicone oil, polymethylvinylsiloxane, a metal catalyst, a reinforcing filler, a flame retardant and a metal powder according to a certain proportion; and the component B consists of polymethylvinylsiloxane, hydrogen containing silicone oil, hydroxy silicone oil, a flame retardant, a reinforcing filler and a metal powder according to a certain proportion. The high-density fire-proof silicone rubber has the advantages of good flame retardance performance, excellent mechanical performance, toxic gas prevention in fire and the like, and can be applied to mechanical pipelines, cables and other plugging structures which have higher requirements on fire proofing and mechanical performances.
Description
Technical field
The present invention relates to a kind of high-density fire prevention silicone rubber and preparation method thereof, belong to polymer fire-retardant material technical field.
Background technology
Existing fireproof blocking adopts organic fire prevention calking and fire protection plaster mostly.Organic fire prevention calking is met fire can volatilize toxic gas; Though and the fire protection plaster nontoxicity forms hard block after curing, do not have and uphold and the elasticity of compression, can't compensate the mechanical shift that mechanical pipe vibrations and building settlement cause, and the very inconvenience when keeping in repair and change of objects through walls such as pipeline and cable.
And traditional silicone rubber flame retardant properties is not good, and radiation resistance is not good, can not adapt to the working spaces higher to fire protection requirement such as power plant, Nuclear power plants, petrochemical industry oil and gas pipes, particularly can not satisfy the higher radiation hardness requirement of Nuclear power plants.
Summary of the invention
At existing in prior technology the problems referred to above and demand, the purpose of this invention is to provide a kind of high-density fire prevention silicone rubber and preparation method thereof, make it have excellent flame-retardant performance and radiation resistance, satisfy the have relatively high expectations application requiring in place of fire prevention, radiation hardness.
For achieving the above object, the technical solution used in the present invention is as follows:
A kind of high-density fire prevention silicone rubber was mixed by A, B component in 1: 1 by volume, formed in 15～40 ℃ of curing, and wherein, described A component has following compositing formula:
Above-mentioned per-cent is mass percent, and described each mass percent sum of forming is 100%;
Described B component has following compositing formula:
Above-mentioned per-cent is mass percent, and described each mass percent sum of forming is 100%.
As preferred version, in the described high-density fire prevention silicone rubber, described A component has following compositing formula:
Above-mentioned per-cent is mass percent, and described each mass percent sum of forming is 100%;
Described B component has following compositing formula:
Above-mentioned per-cent is mass percent, and described each mass percent sum of forming is 100%.
Described metal catalyst is preferably any one or a few the mixture in platinum, rhodium, palladium, ruthenium or the osmium catalyst.
Described reinforced filling is preferably any one or a few the mixture in aerosil, light calcium carbonate, silicon powder, the wollastonite powder.
Described fire retardant is preferably any one or a few the mixture in zinc borate, magnesium hydroxide, ammonium polyphosphate, tetramethylolmethane, the aluminium hydroxide.
Described metal-powder is preferably any one or a few the mixture in aluminium powder, zinc powder, iron powder, the lead powder.
A kind of preparation method of described high-density fire prevention silicone rubber comprises the steps:
A) take by weighing each constitutive material according to the compositing formula of A component and B component respectively;
B) the poly-ethylene methacrylic radical siloxane in the A component and hydroxy silicon oil are added in the reactor, under 20～60 ℃, vacuum tightness-0.1～0.05MPa, mix 10～60min, in above mixing solutions, add metal catalyst, reinforced filling again, mix 30～60min with high-speed emulsifying machine, adding fire retardant again mixes, add metal-powder, vacuum outgas 30～60min; With 100 purpose filter screen press filtrations, can makes the A component;
C) the poly-ethylene methacrylic radical siloxane in the B component, containing hydrogen silicone oil, hydroxy silicon oil are added in the reactor, stir 10～60min at 20～60 ℃, in above mixing solutions, add reinforced filling, fire retardant again, mix 30～60min with high-speed emulsifying machine, and 20～30 ℃ of temperature in keeping jar, add metal-powder, vacuum outgas 30～60min; With 100 purpose filter screen press filtrations, can makes the B component;
D) A component and the B component of preparation were mixed in 1: 1 by volume, in 15～40 ℃ of curing, namely get high-density fire prevention silicone rubber.
Compared with prior art, high-density fire prevention silicone rubber of the present invention has the following advantages:
1) density is big, the physical strength height, and radiation resistance is good;
2) have tasteless nontoxicly, do not contain volatile matter;
3) it is little to have an excellent electric insulating, oxytolerant resistance to deterioration, thermal conductivity;
4) flame retardant properties is good, and its fire retardant performance reaches the FV-0 rank of GB/T2408-1996;
5) easy construction is easy to dismounting and change.
Embodiment
Below in conjunction with example to further detailed, complete explanation of the present invention.
Embodiment 1
A) take by weighing each constitutive material by following prescription:
The compositing formula of A component is as follows:
The compositing formula of B component is as follows:
B) the poly-ethylene methacrylic radical siloxane in the A component and hydroxy silicon oil are added in the reactor, under 20～60 ℃, vacuum tightness-0.1～0.05MPa, mix 10～60min, in above mixing solutions, add metal catalyst, reinforced filling again, mix 30～60min with high-speed emulsifying machine, adding fire retardant again mixes, add metal-powder, vacuum outgas 30～60min; With 100 purpose filter screen press filtrations, can makes the A component;
C) the poly-ethylene methacrylic radical siloxane in the B component, containing hydrogen silicone oil, hydroxy silicon oil are added in the reactor, stir 10～60min at 20～60 ℃, in above mixing solutions, add reinforced filling, fire retardant again, mix 30～60min with high-speed emulsifying machine, and 20～30 ℃ of temperature in keeping jar, add metal-powder, vacuum outgas 30～60min; With 100 purpose filter screen press filtrations, can makes the B component;
D) A component and the B component of preparation were mixed in 1: 1 by volume, in self-vulcanizing, namely get high-density fire prevention silicone rubber.
Embodiment 2
The compositing formula of A component is as follows:
The compositing formula of B component is as follows:
All the other contents are with described in the embodiment 1.
Embodiment 3
The compositing formula of A component is as follows:
The compositing formula of B component is as follows:
All the other contents are with described in the embodiment 1.
Embodiment 4
The compositing formula of A component is as follows:
The compositing formula of B component is as follows:
All the other contents are with described in the embodiment 1.
Embodiment 5
The compositing formula of A component is as follows:
The compositing formula of B component is as follows:
All the other contents are with described in the embodiment 1.
Embodiment 6
The compositing formula of A component is as follows:
The compositing formula of B component is as follows:
All the other contents are with described in the embodiment 1.
Main performance index and the testing standard thereof of high-density fire prevention silicone rubber of the present invention before and after solidifying is shown in Table 1.
Table 1 performance index and testing standard thereof
By table 1 as seen: not only flame retardant properties is good for the high-density fire prevention silicone rubber that the present invention makes, and has a good mechanical performance, and meet fire and can not produce plurality of advantages such as toxic gas, can be applied to the plugging structure that fire prevention such as mechanical pipe, cable and mechanical property are had relatively high expectations.
Be necessary at last to be pointed out that at this: above embodiment only is used for the present invention is described in further detail; can not be interpreted as limiting the scope of the invention, some nonessential improvement that those skilled in the art's foregoing according to the present invention is made and adjustment all belong to protection scope of the present invention.
Claims (6)
1. the preparation method of a high-density fire prevention silicone rubber is characterized in that, comprises the steps:
A) take by weighing each constitutive material according to the compositing formula of A component and B component respectively;
B) the poly-ethylene methacrylic radical siloxane in the A component and hydroxy silicon oil are added in the reactor, under 20～60 ℃, vacuum tightness-0.1～0.05MPa, mix 10～60min, in above mixing solutions, add metal catalyst, reinforced filling again, mix 30～60min with high-speed emulsifying machine, adding fire retardant again mixes, add metal-powder, vacuum outgas 30～60min; With 100 purpose filter screen press filtrations, can makes the A component;
C) the poly-ethylene methacrylic radical siloxane in the B component, containing hydrogen silicone oil, hydroxy silicon oil are added in the reactor, stir 10～60min at 20～60 ℃, in above mixing solutions, add reinforced filling, fire retardant again, mix 30～60min with high-speed emulsifying machine, and 20～30 ℃ of temperature in keeping jar, add metal-powder, vacuum outgas 30～60min; With 100 purpose filter screen press filtrations, can makes the B component;
D) with A component and the 1:1 mixing by volume of B component of preparation, in 15～40 ℃ of curing, namely get high-density fire prevention silicone rubber;
Wherein, described A component has following compositing formula:
Above-mentioned per-cent is mass percent, and described each mass percent sum of forming is 100%;
Described B component has following compositing formula:
Above-mentioned per-cent is mass percent, and described each mass percent sum of forming is 100%.
2. the preparation method of high-density according to claim 1 fire prevention silicone rubber is characterized in that described A component has following compositing formula:
Above-mentioned per-cent is mass percent, and described each mass percent sum of forming is 100%;
Described B component has following compositing formula:
Above-mentioned per-cent is mass percent, and described each mass percent sum of forming is 100%.
3. the preparation method of high-density according to claim 1 and 2 fire prevention silicone rubber is characterized in that: described metal catalyst is any one or a few the mixture in platinum, rhodium, palladium, ruthenium or the osmium catalyst.
4. the preparation method of high-density according to claim 1 and 2 fire prevention silicone rubber is characterized in that: described reinforced filling is any one or a few the mixture in aerosil, light calcium carbonate, silicon powder, the wollastonite powder.
5. the preparation method of high-density according to claim 1 and 2 fire prevention silicone rubber is characterized in that: described fire retardant is any one or a few the mixture in zinc borate, magnesium hydroxide, ammonium polyphosphate, tetramethylolmethane, the aluminium hydroxide.
6. the preparation method of high-density according to claim 1 and 2 fire prevention silicone rubber is characterized in that: described metal-powder is any one or a few the mixture in aluminium powder, zinc powder, iron powder, the lead powder.
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| CN 201110394279 CN102504545B (en) | 2011-12-02 | 2011-12-02 | High-density fire-proof silicone rubber and preparation method thereof |
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| CN 201110394279 CN102504545B (en) | 2011-12-02 | 2011-12-02 | High-density fire-proof silicone rubber and preparation method thereof |
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| CN104927360A (en) * | 2015-06-30 | 2015-09-23 | 烟台金润消防工程有限公司 | High-density silicone rubber for nuclear power |
| CN104945909A (en) * | 2015-06-30 | 2015-09-30 | 烟台金润消防工程有限公司 | Medium-density silicone rubber for nuclear power |
| CN105623273A (en) * | 2015-10-30 | 2016-06-01 | 深圳市沃尔核材股份有限公司 | Coatable ceramic silicone rubber and preparation method therefor |
| CN105238065A (en) * | 2015-11-03 | 2016-01-13 | 深圳市沃尔核材股份有限公司 | Liquid ceramic silicone rubber and preparation method thereof |
| CN105802235A (en) * | 2016-05-04 | 2016-07-27 | 江苏欣安新材料技术有限公司 | High-density silicone elastic material and production method thereof |
| CN108047725A (en) * | 2017-12-11 | 2018-05-18 | 江苏海龙核科技股份有限公司 | A kind of nuclear power fire-proof silicone rubber and preparation method thereof |
| CN108659546A (en) * | 2018-04-24 | 2018-10-16 | 东莞市基核材有限公司 | The nuclear power fire-proof and explosion-proof silicone sealant material of high density high resiliency |
| CN109054388A (en) * | 2018-07-12 | 2018-12-21 | 江苏雄海智能电气有限公司 | A kind of preparation method of high-strength silicone rubber fire retardant anticorrosion sealing material |
| CN109627777A (en) * | 2018-11-23 | 2019-04-16 | 烟台金润核电材料股份有限公司 | Flexible silicone body and its preparation method and application |
| CN109486198A (en) * | 2018-11-29 | 2019-03-19 | 深圳市东信硅材料有限公司 | A kind of high-density fire-proof silicone adhesive and its preparation process |
| CN111303615A (en) * | 2020-03-23 | 2020-06-19 | 东莞线宝电子科技有限公司 | Data line cladding material and preparation method thereof |
| CN113527886A (en) * | 2021-06-08 | 2021-10-22 | 江苏海龙核科技股份有限公司 | Nuclear-grade dense electrical hole plugging material and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101845223A (en) * | 2010-05-06 | 2010-09-29 | 扬中市欣安防火材料有限公司 | Silicone high-density elastomer and production method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101845223A (en) * | 2010-05-06 | 2010-09-29 | 扬中市欣安防火材料有限公司 | Silicone high-density elastomer and production method thereof |
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Owner name: JIANGSU ENTC NUCLEAR MATERIAL TECHNOLOGY CO., LTD. Free format text: FORMER NAME: ENTC NUCLEAR MATERIALS TECHNOLOGY (JIANGSU) CO., LTD. |
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Address after: Jian Xin Lu 212009 Zhenjiang province Jiangsu City Jingkou Industrial Park No. 36 Patentee after: JIANGSU ENTC NUCLEAR TECHNOLOGY JOINT STOCK CO., LTD. Address before: 212009 Zhenjiang City, Jiangsu Province Economic Development Zone eight road No. 17 Patentee before: Hailong nuclear material technology (Jiangsu) Co., Ltd. |