CN101852448A - Application of hydrogenated nitrile rubber in gas appliance using dimethyl ether as fuel - Google Patents
Application of hydrogenated nitrile rubber in gas appliance using dimethyl ether as fuel Download PDFInfo
- Publication number
- CN101852448A CN101852448A CN 201010154012 CN201010154012A CN101852448A CN 101852448 A CN101852448 A CN 101852448A CN 201010154012 CN201010154012 CN 201010154012 CN 201010154012 A CN201010154012 A CN 201010154012A CN 101852448 A CN101852448 A CN 101852448A
- Authority
- CN
- China
- Prior art keywords
- dimethyl ether
- hydrogenated nitrile
- fuel
- nitrile rubber
- resistance
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- LCGLNKUTAGEVQW-UHFFFAOYSA-N Dimethyl ether Chemical compound COC LCGLNKUTAGEVQW-UHFFFAOYSA-N 0.000 title claims abstract description 87
- 229920000459 Nitrile rubber Polymers 0.000 title claims abstract description 35
- 239000000446 fuel Substances 0.000 title abstract description 16
- 239000003915 liquefied petroleum gas Substances 0.000 abstract description 11
- 239000007789 gas Substances 0.000 abstract description 9
- 229920001971 elastomer Polymers 0.000 abstract description 8
- 239000005060 rubber Substances 0.000 abstract description 8
- 230000002522 swelling effect Effects 0.000 abstract description 6
- 230000006835 compression Effects 0.000 abstract description 5
- 238000007906 compression Methods 0.000 abstract description 5
- 238000007789 sealing Methods 0.000 abstract description 4
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 abstract description 3
- 239000002253 acid Substances 0.000 abstract description 3
- 239000003513 alkali Substances 0.000 abstract description 3
- 230000007797 corrosion Effects 0.000 abstract description 3
- 238000005260 corrosion Methods 0.000 abstract description 3
- 239000000126 substance Substances 0.000 abstract description 3
- 239000000567 combustion gas Substances 0.000 description 5
- 239000002283 diesel fuel Substances 0.000 description 5
- 239000003921 oil Substances 0.000 description 5
- 239000007788 liquid Substances 0.000 description 4
- 239000002904 solvent Substances 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 125000004430 oxygen atom Chemical group O* 0.000 description 3
- 229920002379 silicone rubber Polymers 0.000 description 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 description 1
- 208000005623 Carcinogenesis Diseases 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 239000000443 aerosol Substances 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000036952 cancer formation Effects 0.000 description 1
- 231100000504 carcinogenesis Toxicity 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 231100000053 low toxicity Toxicity 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000002798 polar solvent Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
- Sealing Material Composition (AREA)
Abstract
本发明涉及一种氢化丁腈橡胶(HNBR)的新用途，氢化丁腈橡胶的饱和性高，具有良好的耐热性能，优良的耐化学腐蚀性能(对氟利昂、酸、碱的具有良好的抗耐性)，优异的耐臭氧性能，较高的抗压缩永久变形性能，对各种极性介质具有很好的稳定性，可作为以二甲醚为燃料的燃气具的密封圈使用，以解决二甲醚对液化石油气瓶阀、减压阀、输气管路及灶具密封橡胶件存在的负溶胀作用问题，避免泄露事故的发生。The invention relates to a new use of hydrogenated nitrile rubber (HNBR). The hydrogenated nitrile rubber has high saturation, good heat resistance, excellent chemical corrosion resistance (good resistance to Freon, acid and alkali), excellent ozone resistance, high compression permanent deformation resistance, and good stability to various polar media. The hydrogenated nitrile rubber can be used as a sealing ring of a gas appliance using dimethyl ether as fuel to solve the problem of negative swelling effect of dimethyl ether on liquefied petroleum gas cylinder valves, pressure reducing valves, gas pipelines and stove sealing rubber parts, thereby avoiding leakage accidents.
Description
Technical field
The present invention relates to the new purposes of hydrogenated nitrile-butadiene rubber (HNBR), particularly the application of sealing ring in the combustion gas tool that with the dimethyl ether is fuel of making of hydrogenated nitrile-butadiene rubber.
Background technology
Dimethyl ether claims methyl ether again, is called for short DME.Its English name is dimethylether, and molecular formula is CH
3-O-CH
3, relative vapor density (air is 1) 1.62, explosive range: 3.4-27.0% (V/V), ignition temperature: 350 ℃, dimethyl ether is soluble in water, in the pure and mild ether.
Dimethyl ether has inertia, non-corrosiveness, non-carcinogenesis, almost non-toxic.Dimethyl ether did not expose to the open air in the air midium or long term can form peroxide.Under normal pressure, be a kind of colourless gas, the ethers distinctive smell is arranged.Dimethyl ether is as the substitute in fluorine Lyons, increases sharply in the use amount of aerosol and cold-producing medium industry.
Along with oil appreciates and proposition automobile-used, the domestic fuel environmental issue year after year, dimethyl ether causes day by day that as clean environment-friendly fuel all circles pay close attention to, and dimethyl ether is with comprehensive replacement liquid liquefied oil gas, and part substitutes diesel oil.In the near future, dimethyl ether may become a kind of important fuel.
The fuel characteristic of dimethyl ether: dimethyl ether efficiency of combustion height, oxygen demand is few, contains oxygen atom in the dimethyl ether molecule, and the air capacity that burning needs is few:
CH
3OCH
3+ 3O
2=3H
2O+2CO
2, every kg dimethyl ether burning oxygen demand 1.46Nm
3
Liquefied gas: C
3H
8+ 5O
2=4H
2O+3CO
2, every kg liquefied gas burning oxygen demand 2.55Nm
3
Composition is simple in the dimethyl ether fuel, and contains oxygen atom, and air mixes and to require lowly, so dimethyl ether thermal efficiency height, burning are fully, and the clean no black smoke of tail gas is an environment-friendly fuel.
Under dimethyl ether (DME) normal temperature and pressure is gaseous state, is pressurized to 0.5～0.6MPa and just can becomes liquid, and physical property is similar to liquefied petroleum gas, can be used as domestic fuel; Theoretical calorific value is about 64% of petrol and diesel oil, uses calorific value and is equivalent to about 80% of petrol and diesel oil.The dimethyl ether Cetane number is higher than diesel oil greater than 55.Dimethyl ether low toxicity low-corrosiveness, conventional harmful gas emission is lower than petrol and diesel oil and liquefied petroleum gas during burning, helps environmental protection.
But, owing to the negative swelling action of dimethyl ether (DME) to liquefied petroleum gas cylinder valve, pressure-reducing valve, air delivering pipeline and kitchen range caulking gum spare, the incident that the cylinder valve leakage takes place successively in all parts of the country.
For cooperating the application of dimethyl ether in the fuel field, need a kind of seal that can be used with dimethyl ether of exploitation, to solve dimethyl ether, avoid the generation of leakage accident to the negative swelling action problem that liquefied petroleum gas cylinder valve, pressure-reducing valve, air delivering pipeline and kitchen range caulking gum spare exist.
Summary of the invention
The objective of the invention is to provide the new purposes of a kind of hydrogenated nitrile-butadiene rubber (HNBR), the application of sealing ring in the combustion gas tool that with the dimethyl ether is fuel of making of hydrogenated nitrile-butadiene rubber specifically, to solve dimethyl ether, avoid the generation of leakage accident to the negative swelling action problem that liquefied petroleum gas cylinder valve, pressure-reducing valve, air delivering pipeline and kitchen range caulking gum spare exist.
The technical solution adopted for the present invention to solve the technical problems is:
The hydrogenated nitrile-butadiene rubber (HNBR) that the present invention adopts is to carry out special hydrotreatment and a kind of HI SA highly saturated elastomer that obtains by acrylonitrile-butadiene rubber, ripe relatively to the hydroprocessing technique of acrylonitrile-butadiene rubber, be the method for hydrotreating that the patent of invention of CN1058973C discloses a kind of acrylonitrile-butadiene rubber as notification number.Hydrogenated nitrile-butadiene rubber has good oil resistance (good to fuel oil, lubricating oil, aromatic series solvent resistance); And, because its HI SA highly saturated structure, make its tool good heat-resistant, good resistance to chemical corrosion (to the good anti-patience that has of freon, acid, alkali), excellent ozone resistance, higher compression compression permanent deformation performance; Hydrogenated nitrile-butadiene rubber also has high strength simultaneously, and characteristics such as high tear energy, anti-wear performance excellence are one of supereminent rubber of combination property.
Hydrogenated nitrile-butadiene rubber is widely used in aspects such as oil field, auto industry at present.Along with the development of automobile, petroleum industry, rubber components also need have characteristics such as good heat-resisting, high temperature resistant, high pressure, oxytolerant except that requiring oil resistant.Common acrylonitrile-butadiene rubber (NBR) far can not satisfy these requirements, so people begin to seek the improvement to the NBR performance, and hydrogenated nitrile-butadiene rubber is succeeded in developing in order to satisfy this new needs.
Rubber is followed the similar principle that mixes to the interaction of solvent, think that promptly the rubber close with solvent polarity is dissolved in this solvent easily, the liquid with similar polarity can dissolve this principle of identical solute (can dissolve each other) and have important directive significance for reasonably choosing experimental rubber.
Because the liquid dimethyl ether is a kind of polar solvent, its polarity is to be caused by the oxygen atom in the middle of the strand, and hydrogenated nitrile-butadiene rubber (HNBR) is not polarity, and various polarizable mediums are had good stability.In general purpose rubber, hydrogenated nitrile-butadiene rubber has best ageing-resistant performance.Hydrogenated nitrile-butadiene rubber is compared with acrylonitrile-butadiene rubber, and the difference of its polarity and dimethyl ether polarity is the most obvious, so the dimethyl ether resistant performance is best.And the heat-resisting quantity of HNBR is 130～180 ℃, and cold resistance is that-55～-38 ℃ and mechanical performance are good, with other polymer phase than the requirement that more can satisfy the combustion gas tool that is fuel with the dimethyl ether.
The invention has the beneficial effects as follows:
1, the present invention has excavated the new purposes of known hydrogenated nitrile-butadiene rubber, has opened up its new application;
2, the saturability height of hydrogenated nitrile-butadiene rubber of the present invention, has good heat-resistant, good resistance to chemical corrosion (to the good anti-patience that has of freon, acid, alkali), excellent ozone resistance, higher compression compression permanent deformation performance, various polarizable mediums are had good stability, can solve dimethyl ether, avoid the generation of leakage accident the negative swelling action problem that liquefied petroleum gas cylinder valve, pressure-reducing valve, air delivering pipeline and kitchen range caulking gum spare exist.
The present invention is further described below in conjunction with embodiment.
The specific embodiment
Weight and the Volume Changes test in different combustion gas of hydrogenated nitrile-butadiene rubber, acrylonitrile-butadiene rubber and silicon rubber:
The fuel of three kinds of heterogeneities of configuration:
First kind: the LPG (liquefied petroleum gas) that contains 2%DME;
Second kind: the LPG that contains 50%DME;
The third: 100%DME;
Take by weighing sample:
Get 100 * 100 millimeters acrylonitrile-butadiene rubber, hydrogenated nitrile-butadiene rubber and silicon rubber sample respectively, get three for every kind, take by weighing its weight respectively and measure its volume, three samples of each kind are put into the gas compartment of above-mentioned three kinds of fuel respectively, the static placement 360 days, measure its weight and volume after the taking-up again, obtain the rate of change (seeing Table 1) that it is placed on front and back, fuel gas space.
3 kinds of nonmetallic materials weight of table 1 and Volume Changes data
Can very clearly draw a conclusion by above result of the test, for the performance of acrylonitrile-butadiene rubber, hydrogenated nitrile-butadiene rubber and silicon rubber dimethyl ether resistant, the hydrogenated nitrile-butadiene rubber best performance of anti-DME, and meet the deformation requirements that rubber parts seals fully.Therefore, the seal that utilizes hydrogenated nitrile-butadiene rubber to make can solve dimethyl ether to the negative swelling action problem that liquefied petroleum gas cylinder valve, pressure-reducing valve, air delivering pipeline and kitchen range caulking gum spare exist, and avoids the generation of leakage accident.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010154012 CN101852448A (en) | 2010-04-16 | 2010-04-16 | Application of hydrogenated nitrile rubber in gas appliance using dimethyl ether as fuel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010154012 CN101852448A (en) | 2010-04-16 | 2010-04-16 | Application of hydrogenated nitrile rubber in gas appliance using dimethyl ether as fuel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101852448A true CN101852448A (en) | 2010-10-06 |
Family
ID=42804055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010154012 Pending CN101852448A (en) | 2010-04-16 | 2010-04-16 | Application of hydrogenated nitrile rubber in gas appliance using dimethyl ether as fuel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101852448A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101639142A (en) * | 2008-07-30 | 2010-02-03 | 新奥(廊坊)燃气技术研究发展有限公司 | Tube used for dimethyl ether |
| CN101691437A (en) * | 2008-06-13 | 2010-04-07 | 藤仓橡胶工业株式会社 | Rubber composition and method for producing the same, seal member by using the same and apparatus having the same, and a rubber composition for resistance to dme |
-
2010
- 2010-04-16 CN CN 201010154012 patent/CN101852448A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101691437A (en) * | 2008-06-13 | 2010-04-07 | 藤仓橡胶工业株式会社 | Rubber composition and method for producing the same, seal member by using the same and apparatus having the same, and a rubber composition for resistance to dme |
| CN101639142A (en) * | 2008-07-30 | 2010-02-03 | 新奥(廊坊)燃气技术研究发展有限公司 | Tube used for dimethyl ether |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20101006 |