CN112898705A - Inner layer peroxide fluorine rubber material of rubber tube at high-temperature section of silicon-fluorine composite turbocharging system - Google Patents
Inner layer peroxide fluorine rubber material of rubber tube at high-temperature section of silicon-fluorine composite turbocharging system Download PDFInfo
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
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- C08K3/34—Silicon-containing compounds
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
- C08K5/34—Heterocyclic compounds having nitrogen in the ring
- C08K5/3467—Heterocyclic compounds having nitrogen in the ring having more than two nitrogen atoms in the ring
- C08K5/3477—Six-membered rings
- C08K5/3492—Triazines
- C08K5/34924—Triazines containing cyanurate groups; Tautomers thereof
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- 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
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
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- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
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- C08K2003/222—Magnesia, i.e. magnesium oxide
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Abstract
The invention discloses a peroxide-fluorine rubber material for an inner layer of a rubber tube at a high-temperature section of a silicon-fluorine composite turbocharging system, and relates to the technical field of high polymer materials; the invention is prepared from the following raw materials in parts by weight: 60-70 parts of VITON GF, 10-15 parts of calcium silicate, 1-2 parts of silane coupling agent, 5-10 parts of N990 carbon black, 2-3 parts of calcium oxide, 3-5 parts of magnesium oxide, 1-2 parts of peroxide and 1 part of other silane coupling agent, wherein the silane coupling agent is selected from one or more of KH-540, KH-792 and Si-602, the activity of the magnesium oxide is 140-160, the peroxide comprises peroxide vulcanizing agent and peroxide vulcanization accelerator, and the high-temperature resistant composite material can resist the high temperature of 210 ℃, resists ethanol gasoline and FAMB mixed oil and can be directly bonded with silicon rubber.
Description
Technical Field
The invention belongs to the technical field of high polymer materials, and particularly relates to a fluorine peroxide rubber material for an inner layer of a rubber tube at a high-temperature section of a silicon-fluorine composite turbocharging system.
Background
The rubber tube at the high-temperature section of the turbocharging system is a composite rubber tube with inner layer rubber of binary fluororubber and outer layer rubber of gas-phase silicone rubber, but with the popularization of ethanol gasoline in the market, the defect of poor ethanol gasoline resistance of the binary fluororubber is gradually exposed, so that the composite rubber tube which has high temperature resistance of about 175-210 ℃ and simultaneously takes the ethanol gasoline resistance of the fluororubber as an anti-permeation layer is required. Although part of the oxyfluoride rubber can solve the problem of oil resistance, the partial oxyfluoride rubber is difficult to adhere to the outer layer of the silicon rubber in the production process.
Disclosure of Invention
Aiming at solving the problems of the defects and the shortcomings of the prior art; the invention aims to provide a peroxide-fluorine rubber material for an inner layer of a rubber tube at a high-temperature section of a silicon-fluorine composite turbocharging system, which can resist the high temperature of 210 ℃, ethanol gasoline and FAMB mixed oil and can be directly bonded with silicon rubber.
In order to achieve the purpose, the invention adopts the technical scheme that: the traditional Chinese medicine is prepared from the following raw materials in parts by weight:
60-70 parts of VITON GF
10-15 parts of calcium silicate
1-2 parts of silane coupling agent
5-10 parts of N990 carbon black
2-3 parts of calcium oxide
3-5 parts of magnesium oxide
1-2 parts of peroxide
1 part of others
Preferably, the silane coupling agent is selected from one or more of KH-540, KH-792 and Si-602.
Preferably, the activity of the magnesium oxide is 140-160.
Preferably, the peroxide comprises a peroxide curing agent selected from one or both of 2.5-dimethyl-2.5-di (t-butylperoxy) hexane or 2.5-dimethyl-2.5-bis- (t-butylperoxy) 3-hexyne and a peroxide curing accelerator selected from triallyl isocyanurate.
Preferably, the other component includes a plasticizer, an acid acceptor, and a reinforcing filler.
Preferably, the mass ratio of the plasticizer, the acid acceptor and the reinforcing filler is 3:3: 4.
The preparation method of the peroxide fluorine rubber material for the inner layer of the rubber tube at the high-temperature section of the silicon-fluorine composite turbocharging system is characterized by comprising the following steps of: the method comprises the following steps:
(1) mixing the raw materials
Weighing VITON GF, calcium silicate, a silane coupling agent, N990 carbon black, calcium oxide, magnesium oxide, peroxide, a plasticizer, an acid absorbent and a reinforcing filler in parts by weight, sequentially putting the mixture into an open mill for mixing, standing for 15-30 hours after mixing at the roll temperature of 40-60 ℃ for 15-30min, and then back-milling for 5-10 times to prepare rubber compound;
(2) vulcanization
First-stage vulcanization: and putting the rubber compound into a flat vulcanizing machine for vulcanization under the pressure of 30-50t and the vulcanization temperature of 170-200 ℃, exhausting gas for 2-3 times in the vulcanization process for 15-30min, then opening the mold, demoulding the formed rubber compound, and finally cooling the formed rubber compound.
Secondary vulcanization: and putting the product after the first stage vulcanization into a hot air aging oven for second stage vulcanization at the vulcanization temperature of 150-230 ℃ for 3-8h, and naturally cooling to room temperature to obtain the finished product.
Compared with the prior art, the invention has the beneficial effects that: by selecting VITON GF as a main material and adjusting the formula, the purpose of resisting high temperature of 210 ℃, ethanol gasoline and FAMB mixed oil is achieved, and the mixed oil also meets the process requirements and can be directly bonded with silicon rubber.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described below by way of specific embodiments. It is to be understood that such description is merely illustrative and not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
It should be noted that, in order to avoid obscuring the present invention with unnecessary details, only the structures and/or processing steps closely related to the scheme according to the present invention are shown in the following embodiments, and other details not closely related to the present invention are omitted.
The invention provides a fluorine peroxide rubber material for an inner layer of a rubber tube at a high-temperature section of a silicon-fluorine composite turbocharging system, which is prepared from the following raw materials in parts by weight:
60-70 parts of VITON GF
10-15 parts of calcium silicate
1-2 parts of silane coupling agent
5-10 parts of N990 carbon black
2-3 parts of calcium oxide
3-5 parts of magnesium oxide
1-2 parts of peroxide
1 part of others
The magnesium oxide has the activity of 140-160, the peroxide contains one or two of peroxide vulcanizing agent and peroxide vulcanization accelerator, the peroxide vulcanizing agent is one or two of 2.5-dimethyl-2.5-di (tert-butylperoxy) hexane or 2.5-dimethyl-2.5-bis- (tert-butylperoxy) 3-hexyne, the peroxide vulcanization accelerator is triallyl isocyanurate, the rest of the peroxide vulcanizing agent contains plasticizer, acid absorbent and reinforcing filler, and the mass ratio of the plasticizer, the acid absorbent and the reinforcing filler is 3:3: 4.
Example 1:
the invention provides a fluorine peroxide rubber material for an inner layer of a rubber tube at a high-temperature section of a silicon-fluorine composite turbocharging system, which is prepared from the following raw materials in parts by weight: 60 parts of VITON GF, 10 parts of calcium silicate, 10 parts of KH-5401 parts, 5 parts of N990 carbon black, 2 parts of calcium oxide, 3 parts of magnesium oxide, 1 part of 2.5-dimethyl-2.5-di (tert-butylperoxy) hexane, 1 part of triallyl isocyanurate, 0.3 part of plasticizer, 0.3 part of acid acceptor and 0.4 part of reinforcing filler.
Weighing VITON GF, calcium silicate, KH-540, N990 carbon black, calcium oxide, magnesium oxide, 2.5-dimethyl-2.5-di (tert-butylperoxy) hexane, triallyl isocyanurate, a plasticizer, an acid absorbent and a reinforcing filler according to the parts by weight, sequentially putting the mixture into an open mill for mixing, keeping the mixing roll temperature at 40 ℃ for 18min, standing for 20h after mixing, and then back-mixing for 5 times to prepare a mixed rubber; then, one-stage vulcanization: and putting the rubber compound into a plate vulcanizing machine for vulcanizing, wherein the pressure is 30t, the vulcanizing temperature is 175 ℃, exhausting for 2 times in the vulcanizing process, the vulcanizing time is 15min, then opening the die, demoulding the formed rubber compound, finally cooling the formed rubber compound, putting the product obtained after the first-stage vulcanization into a hot air ageing oven for second-stage vulcanization, the vulcanizing temperature is 180 ℃, the vulcanizing time is 4h, and naturally cooling to the room temperature to obtain the finished product.
Example 2:
the invention provides a fluorine peroxide rubber material for an inner layer of a rubber tube at a high-temperature section of a silicon-fluorine composite turbocharging system, which is prepared from the following raw materials in parts by weight: VITON GF 70 parts, calcium silicate 15 parts, KH-7922 parts, N990 carbon black 10 parts, calcium oxide 3 parts, magnesium oxide 5 parts, 2.5-dimethyl-2.5-bis- (tert-butylperoxy) 3-hexyne 1 part, triallyl isocyanurate 1 part, plasticizer 0.3 part, acid absorbent 0.3 part and reinforcing filler 0.4 part.
Weighing VITON GF, calcium silicate, KH-792, N990 carbon black, calcium oxide, magnesium oxide, 2.5-dimethyl-2.5-bis- (tert-butylperoxy) 3-hexyne, triallyl isocyanurate, a plasticizer, an acid absorbent and a reinforcing filler in parts by weight, sequentially putting the materials into an open mill for mixing, wherein the temperature of a mixing roll is 50 ℃, the mixing time is 25min, standing for 28h after mixing, and then back-mixing for 10 times to prepare a rubber compound; then, one-stage vulcanization: and putting the rubber compound into a plate vulcanizing machine for vulcanizing, wherein the pressure is 45t, the vulcanizing temperature is 185 ℃, exhausting for 3 times in the vulcanizing process, the vulcanizing time is 20min, then opening the die, demoulding the formed rubber compound, finally cooling the formed rubber compound, putting the product obtained after the first-stage vulcanization into a hot air ageing oven for second-stage vulcanization, the vulcanizing temperature is 200 ℃, the vulcanizing time is 5h, and naturally cooling to the room temperature to obtain the finished product.
Example 3:
the invention provides a fluorine peroxide rubber material for an inner layer of a rubber tube at a high-temperature section of a silicon-fluorine composite turbocharging system, which is prepared from the following raw materials in parts by weight: VITON GF 65 parts, calcium silicate 12 parts, Si-6022 parts, N990 carbon black 8 parts, calcium oxide 3 parts, magnesium oxide 4 parts, 2, 5-dimethyl-2, 5-bis- (tert-butylperoxy) 3-hexyne 1 part, triallyl isocyanurate 1 part, plasticizer 0.3 part, acid absorbent 0.3 part and reinforcing filler 0.4 part.
Weighing VITON GF, calcium silicate, Si-602, N990 carbon black, calcium oxide, magnesium oxide, 2.5-dimethyl-2.5-bis- (tert-butylperoxy) 3-hexyne, triallyl isocyanurate, a plasticizer, an acid absorbent and a reinforcing filler in parts by weight, sequentially putting the materials into an open mill for mixing, keeping the mixing roll temperature at 45 ℃ for 22min, standing for 25h after mixing, and then back-mixing for 8 times to prepare rubber compound; then, one-stage vulcanization: and putting the rubber compound into a plate vulcanizing machine for vulcanizing, wherein the pressure is 40t, the vulcanizing temperature is 180 ℃, exhausting for 3 times in the vulcanizing process, the vulcanizing time is 18min, then opening the die, demoulding the formed rubber compound, finally cooling the formed rubber compound, putting the product obtained after the first-stage vulcanization into a hot air ageing oven for second-stage vulcanization, the vulcanizing temperature is 190 ℃, the vulcanizing time is 5h, and naturally cooling to the room temperature to obtain the finished product.
TABLE 1
TABLE 2
TABLE 3
As can be seen from tables 1 to 3, the quality detection indexes of the peroxide fluororubber material in the inner layer of the rubber pipe at the high-temperature section of the silicon-fluorine composite turbocharging system prepared by the invention are all within the qualified standard range.
The working principle of the specific embodiment is as follows: by selecting VITON GF as a main material and adjusting the formula, the purpose of resisting high temperature of 210 ℃, ethanol gasoline and FAMB mixed oil is achieved, and the mixed oil also meets the process requirements and can be directly bonded with silicon rubber.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (7)
1. The inner layer of the rubber tube of the high-temperature section of the silicon-fluorine composite turbocharging system is made of the following raw materials in parts by weight:
60-70 parts of VITON GF
10-15 parts of calcium silicate
1-2 parts of silane coupling agent
5-10 parts of N990 carbon black
2-3 parts of calcium oxide
3-5 parts of magnesium oxide
1-2 parts of peroxide
And the other 1 part.
2. The inner layer of the rubber tube of the high-temperature section of the silicofluoride composite turbocharging system according to claim 1 is made of a peroxide fluorine rubber material, and is characterized in that: the silane coupling agent is selected from one or more of KH-540, KH-792 and Si-602.
3. The inner layer of the rubber tube of the high-temperature section of the silicofluoride composite turbocharging system according to claim 1 is made of a peroxide fluorine rubber material, and is characterized in that: the activity of the magnesium oxide is 140-160.
4. The inner layer of the rubber tube of the high-temperature section of the silicofluoride composite turbocharging system according to claim 1 is made of a peroxide fluorine rubber material, and is characterized in that: the peroxide comprises a peroxide curing agent and a peroxide curing accelerator, wherein the peroxide curing agent is one or two of 2.5-dimethyl-2.5-di (tert-butylperoxy) hexane or 2.5-dimethyl-2.5-bis- (tert-butylperoxy) 3-hexyne, and the peroxide curing accelerator is triallyl isocyanurate.
5. The inner layer of the rubber tube of the high-temperature section of the silicofluoride composite turbocharging system according to claim 1 is made of a peroxide fluorine rubber material, and is characterized in that: the other components comprise a plasticizer, an acid absorbent and a reinforcing filler.
6. The inner layer of the rubber tube of the high-temperature section of the silicofluoride composite turbocharging system according to claim 5, wherein the rubber tube comprises the following components in percentage by weight: the mass ratio of the plasticizer to the acid absorbent to the reinforcing filler is 3:3: 4.
7. The preparation method of the peroxide fluorine rubber material for the inner layer of the rubber tube at the high-temperature section of the silicon-fluorine composite turbocharging system according to claim 1, is characterized in that: the method comprises the following steps:
(1) mixing the raw materials
Weighing VITON GF, calcium silicate, a silane coupling agent, N990 carbon black, calcium oxide, magnesium oxide, peroxide, a plasticizer, an acid absorbent and a reinforcing filler in parts by weight, sequentially putting the mixture into an open mill for mixing, standing for 15-30 hours after mixing at the roll temperature of 40-60 ℃ for 15-30min, and then back-milling for 5-10 times to prepare rubber compound;
(2) vulcanization
First-stage vulcanization: and putting the rubber compound into a flat vulcanizing machine for vulcanization under the pressure of 30-50t and the vulcanization temperature of 170-200 ℃, exhausting gas for 2-3 times in the vulcanization process for 15-30min, then opening the mold, demoulding the formed rubber compound, and finally cooling the formed rubber compound.
Secondary vulcanization: and putting the product after the first stage vulcanization into a hot air aging oven for second stage vulcanization at the vulcanization temperature of 150-230 ℃ for 3-8h, and naturally cooling to room temperature to obtain the finished product.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115716998A (en) * | 2022-11-21 | 2023-02-28 | 天津鹏翎集团股份有限公司 | Modified fluororubber and preparation method and application thereof, EGR pipeline and preparation method thereof, and EGR system |
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| CN103613886A (en) * | 2013-11-05 | 2014-03-05 | 广州机械科学研究院有限公司 | High temperature and high pressure-resistant fluororubber material, and preparation method and application thereof |
| CN104140619A (en) * | 2014-07-20 | 2014-11-12 | 蔡德扬 | Turbine fluororubber pressurization pipe for car and preparation method thereof |
| CN106633544A (en) * | 2016-11-17 | 2017-05-10 | 上海如实密封科技有限公司 | A fluororubber material used for sealing members resistant to high temperatures and high pressure and a preparing method thereof |
| CN106700348A (en) * | 2015-07-17 | 2017-05-24 | 中昊晨光化工研究院有限公司 | Fluororubber mixed rubber, and preparation method and application thereof |
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2019
- 2019-11-19 CN CN201911131845.3A patent/CN112898705A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103613886A (en) * | 2013-11-05 | 2014-03-05 | 广州机械科学研究院有限公司 | High temperature and high pressure-resistant fluororubber material, and preparation method and application thereof |
| CN104140619A (en) * | 2014-07-20 | 2014-11-12 | 蔡德扬 | Turbine fluororubber pressurization pipe for car and preparation method thereof |
| CN106700348A (en) * | 2015-07-17 | 2017-05-24 | 中昊晨光化工研究院有限公司 | Fluororubber mixed rubber, and preparation method and application thereof |
| CN106633544A (en) * | 2016-11-17 | 2017-05-10 | 上海如实密封科技有限公司 | A fluororubber material used for sealing members resistant to high temperatures and high pressure and a preparing method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115716998A (en) * | 2022-11-21 | 2023-02-28 | 天津鹏翎集团股份有限公司 | Modified fluororubber and preparation method and application thereof, EGR pipeline and preparation method thereof, and EGR system |
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