CN1490373A - Controllable environmental protective elastic anaerobic sealing ester - Google Patents
Controllable environmental protective elastic anaerobic sealing ester Download PDFInfo
- Publication number
- CN1490373A CN1490373A CNA021394695A CN02139469A CN1490373A CN 1490373 A CN1490373 A CN 1490373A CN A021394695 A CNA021394695 A CN A021394695A CN 02139469 A CN02139469 A CN 02139469A CN 1490373 A CN1490373 A CN 1490373A
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- China
- Prior art keywords
- anaerobic sealing
- environmental protection
- anaerobic
- poly
- hexylene glycol
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Abstract
An environment protection type controllable elastic anaerobic sealing grease is prepared from hexanediol polydecanoate, triphenol phosphate, biphenol-A fumaric resin, mica, polyhexanediol dimethyl acrylate, expanded graphite, alkyl alcohol, etc. Its advantages are high sealing effect, no environmental pollution, and high resistance to high temp.
Description
Technical field
The present invention relates to a kind of stop-leak compound, especially a kind of environmental protection controlled elasticity anaerobic sealing fat that is used for thread seal.
Background technology
In the background technology, for satisfying the oil pipes screw thread to needs lubricated and sealing, it is carrier with oil base fat that doctor Mei Baili of U.S. plum Long Gongyeyanjiuyuan develops a kind of, add the thread compound that solid packings such as Graphite Powder 99, lead, zinc form, gain recognition in the council of the API development department third session of holding in the Chicago in November nineteen fifty-one, and be named as the API thread compound, this API thread compound has two basic roles: 1) lubrication, tighten lubricate in the process at screw thread in connection, and prevent that the thread gluing phenomenon from taking place; 2) sealing function, after screw thread tightened, the gap that may leak in the filling screw thread prevented to leak and takes place effectively.Though this thread compound has good lubrication, it has following shortcoming:
1, sealing effectiveness is influenced greatly by ambient conditions.Because the API thread compound is can mobile, under extreme pressure and hot conditions, a part of API thread compound can be extruded screw thread.After screw thread tightened, the oil base fat in the API thread compound under extreme pressure and pyritous condition, can produce separation, separates out and volatilize equally.Thread compound has just produced volumetric shrinkage like this, has formed possible leakage path at the thread fit face, makes thread compound lose its due sealing function, even under long room temperature condition, above-mentioned phenomenon also can take place equally.
2, easily cause environmental pollution.Contain harmful element and polycyclic aromatic hydrocarbons carcinogenss such as a large amount of heavy metal leads, zinc in the API thread compound, tighten in the process or after tightening at screw thread, thread compound might flow out with mud, water or oil, to around environment and water resources pollute.
3, can not increase the shackle moment of torsion.Because the API thread compound tightens in the process and is the thickness body all the time after tightening at screw thread, so it can not increase the shackle moment of torsion.
4, heat resistance is poor.The maximum operation (service) temperature of API thread compound is no more than 300 °F.
Summary of the invention
The above-mentioned technical problem that the present invention exists for the API thread compound that solves in the background technology, and provide a kind of sealing effectiveness be subjected to ambient conditions influence little, do not pollute the environment, can regulate shackle moment of torsion and the good environmental protection controlled elasticity anaerobic sealing fat of heat resistance.
Technical scheme of the present invention is: it is poly canoic acid hexylene glycol ester 15～20% that weight percent of the present invention is formed, triphenylphosphate 15～20%, dihydroxyphenyl propane fumaric resin 10～25%, mica 10～15%, poly-hexylene glycol dimethyl propylene acid diester 25～30%, expanded graphite 5～10%, alkyl alcohol 3～5%, isopropyl benzene hydroperoxide 1～3%, n-Octanol 1～3%, silica 1～3%, N.N-dimethyl alkyl toluene amine, 0.1～0.5%, asccharin 0.1～0.5% and metal chelator 0.1～0.5%.
Above-mentioned environmental protection controlled elasticity anaerobic sealing fat also comprises tetrafluoroethylene 5～10%, and the percentage composition of above-mentioned triphenylphosphate is 10～15%.
The present invention has the following advantages:
1, influenced by ambient conditions little for sealing effectiveness.Because the present invention after screw thread tightens, can solidify to form a kind of elastic rubber seal, it is a kind of tough and tensile resilient polymkeric substance, good heat resistanceheat resistant and withstand voltage properties is arranged, good seal performance.
2, can not cause environmental pollution.The present invention does not contain harmful elements such as heavy metal lead, zinc, can not pollute environment and water resources on every side.
3, can regulate the shackle moment of torsion.The present invention is the thickness body in tightening process, then solidify to form the elastic solid polymkeric substance after tightening, the shackle moment of torsion in the time of can increasing shackle, and the amplitude of increase depends on the size of screw thread, model etc.
4, heat resistance is good.Life-time service temperature of the present invention can reach 400 °F.
Embodiment
The present invention includes poly canoic acid hexylene glycol ester, triphenylphosphate, dihydroxyphenyl propane fumaric resin, mica, poly-hexylene glycol dimethyl propylene acid diester, expanded graphite, alkyl alcohol, isopropyl benzene hydroperoxide, n-Octanol, silicon-dioxide, N.N-dimethyl alkyl toluene amine, asccharin and tetrafluoroethylene.Wherein poly canoic acid hexylene glycol ester is a flexibility agent, triphenylphosphate is wear-resistant, extreme pressure agent, the dihydroxyphenyl propane fumaric resin is plasticising, thickening material, poly-hexylene glycol dimethyl propylene acid diester is the polymerizability elastomerics, mica plays filler and reduces the thread gluing effect, expanded graphite plays filler, lubricated, heatproof and increase elastic contribution, alkyl alcohol is the structure activator, isopropyl benzene hydroperoxide is an initiator, and n-Octanol is a poly canoic acid hexylene glycol ester stabilizer, and silicon-dioxide is thixotropic agent, N.N-dimethyl alkyl toluene amine is promotor, asccharin is a secondary accelerator, and metal chelator is a stablizer, the tetrafluoroethylene lubricate.
Technical process of the present invention is as follows:
1) the metal chelator high-speed stirring of the poly-hexylene glycol dimethyl propylene acid diester of adding earlier, poly canoic acid hexylene glycol ester, n-Octanol and half content is 10 minutes;
2) slowly adding the dihydroxyphenyl propane fumaric resin, is 80 ℃ in temperature--under 100 ℃ the condition, and high-speed stirring 3--5 minute;
3) adding mica, is 80 ℃ in temperature--under 100 ℃ the condition, and high-speed stirring 10 minutes;
4) slowly adding expanded graphite and tetrafluoroethylene, is 80 ℃ in temperature--under 100 ℃ the condition, and high-speed stirring 10 minutes;
5) metal chelator of adding triphenylphosphate, alkyl alcohol, silicon-dioxide and second half content is 80 ℃ in temperature--under 100 ℃ the condition, and high-speed stirring 30 minutes;
6) added isopropyl benzene hydroperoxide, N.N-dimethyl alkyl toluene amine, asccharin high-speed stirring 10 minutes;
7) inspect by random samples, cooling, vacuum outgas, last metering filling.
Concrete proportioning embodiment of the present invention is as follows:
Claims (2)
1, a kind of environmental protection controlled elasticity anaerobic sealing fat is characterized in that: it is poly canoic acid hexylene glycol ester 1 5～20% that the weight percent of described environmental protection controlled elasticity anaerobic sealing fat is formed, triphenylphosphate 15～20%, dihydroxyphenyl propane fumaric resin 10～25%, mica 10～15%, poly-hexylene glycol dimethyl propylene acid diester 25～30%, expanded graphite 5～10%, alkyl alcohol 3～5%, isopropyl benzene hydroperoxide 1～3%, n-Octanol 1～3%, silica 1～3%, N.N-dimethyl alkyl toluene amine 0.1～0.5%, asccharin 0.1～0.5% and metal chelator 0.1～0.5%.
2, environmental protection controlled elasticity anaerobic sealing fat as claimed in claim 1 is characterized in that: described environmental protection controlled elasticity anaerobic sealing fat also comprises tetrafluoroethylene 5～10%, and the percentage composition of described triphenylphosphate is 10～15%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA021394695A CN1490373A (en) | 2002-10-16 | 2002-10-16 | Controllable environmental protective elastic anaerobic sealing ester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA021394695A CN1490373A (en) | 2002-10-16 | 2002-10-16 | Controllable environmental protective elastic anaerobic sealing ester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1490373A true CN1490373A (en) | 2004-04-21 |
Family
ID=34147458
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA021394695A Pending CN1490373A (en) | 2002-10-16 | 2002-10-16 | Controllable environmental protective elastic anaerobic sealing ester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1490373A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109439400A (en) * | 2018-08-30 | 2019-03-08 | 重庆交通大学 | Drill rod thread stop-leak compound for constructing tunnel |
-
2002
- 2002-10-16 CN CNA021394695A patent/CN1490373A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109439400A (en) * | 2018-08-30 | 2019-03-08 | 重庆交通大学 | Drill rod thread stop-leak compound for constructing tunnel |
| CN109439400B (en) * | 2018-08-30 | 2021-11-26 | 重庆交通大学 | Drill rod thread sealing grease for tunnel construction |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |