CN103952099B - A kind of oil resistant liquid airproof glue composition and compound method - Google Patents
A kind of oil resistant liquid airproof glue composition and compound method Download PDFInfo
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- CN103952099B CN103952099B CN201410164775.2A CN201410164775A CN103952099B CN 103952099 B CN103952099 B CN 103952099B CN 201410164775 A CN201410164775 A CN 201410164775A CN 103952099 B CN103952099 B CN 103952099B
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Abstract
A kind of oil resistant liquid sealant provided by the invention, aim to provide a kind of easy to use, being coated on hard contact faying face can free forming with the shape of faying face, insoluble in gasoline, kerosene and lubricating oil, the oil resistant liquid sealant easily removed when can seal when-50 DEG C��220 DEG C and pressure are 500 atmospheric pressure environment and repair. The technical scheme is that: by weight percentage, said composition contains the acetal adhesive solution of 60%��70% and the phenolic resin of 25%��35%, the Oleum Ricini of 3%��7%. The oil resistant liquid airproof glue composition of the present invention above-mentioned percentage range composition has easy to use, free forming, resistance to wet goods performance, it is adaptable to the field leakage of oils such as Aeronautics and Astronautics, electronics, machinery seal. The housing being particularly suitable in electromotor oil plant medium working seals with oil pump case faying face.
Description
Technical field
The present invention relates to a kind of easy to use, being coated on hard contact faying face can free forming with the shape of faying face, insoluble in gasoline, kerosene and lubricating oil, the oil resistant liquid sealant formula easily removed when can seal when-50 DEG C��220 DEG C and pressure are 500 atmospheric pressure environment and repair and compound method, the present invention is applicable to the field leakage of oils such as Aeronautics and Astronautics, electronics, machinery and seals. The housing being particularly suitable in electromotor oil plant medium working seals with oil pump case faying face leakage of oil.
Background technology
Liquid sealant is also referred to as liquid seal pad, liquid packing ring, liquid packing etc., it is usually with rubber, synthetic resin or modified wet goods for main component, add the compositions such as plasticizer, stabilizer, filler, pigment, solvent again to combine, it is viscous mobile liquid at normal temperatures, it is coated on the composition surface of hardware, dried through after a while, form the elastic film that one layer of uniformly continuous is stable, the leakage of the materials such as water, gas, oil, acid, alkali, organic solvent can be prevented, simultaneously again resistant to certain pressure and temperature.
Rubber is the conventional reference material of solvent-borne type liquid sealant, and conventional has neoprene, nitrile rubber, CSM, lactoprene etc. Wherein oil resistant solvent resistance has nitrile rubber, CSM and fluorubber etc. preferably, and the mechanical property of CSM is bad, tolerance to cold is poor, and fluorubber dissolubility is low, be not suitable for doing solvent type adhesive.
At present, adhesive market occurred, it is common to there is medium-resistance low, poor mechanical property, adhesion and resistance to ag(e)ing are undesirable, and mixing process is complicated, the problems such as production efficiency is not high.
The sealing of the department enclosures such as the casing of aero-engine, lower-grade fuel and lubricating oil adnexa directly affects the performance parameters of electromotor, jeopardizes the safety of electromotor, reliability and job stability, and sealing is the important performance requirement of electromotor.
The casing of aero-engine and a lot of faying faces of department enclosure adopt rigidity firmly to contact connection, for ensureing that the sealing connecting faying face needs to apply filling with sealant at faying face. The operating characteristic of electromotor requires that its fluid sealant must high temperature resistant, high pressure and the working media of resistance to fluid. Meanwhile, when engine overhaul, the removing of fluid sealant must simply easily be removed totally.
In order to ensure aerial engine sealing requirement, ensure to seal the sealing that position is good, need to study a kind of easy to use, being coated on faying face can free forming with the shape of faying face, insoluble in gasoline, kerosene and lubricating oil, the oil resistant liquid sealant that can seal when-50 DEG C��220 DEG C and pressure are 500 atmospheric pressure environment and easily remove during overhaul.
CN103602285A discloses a kind of solvent-borne type Oil-resistant liquid sealant and preparation method, and it includes following components: nitrile rubber 15��30%; Solvent misture 2��5%; Reinforced filling 20��45%; Pigment 0��5%; Age resistor 0.5��2%; Solvent 0��60%, its preparation method: first nitrile rubber is put into and plasticate into thin film in rubber mixing machine and be cut into small pieces stand-by; Load weighted solvent, filler and pigment are put into after reactor high speed stirs 1 hours by set proportioning solvent misture and age resistor are put into stirring in reactor, the nitrile rubber handled well is put into reactor high speed stirring 4��6 hours, being after the uniform thickness glue of brilliant white until material dissolution, cooling vacuum froth breaking prepares Oil-resistant liquid sealant. But the Oil-resistant liquid sealant product that the method produces is high temperature resistant and resistance to pressure can meet the claim that can seal when-50 DEG C��220 DEG C and pressure are 500 atmospheric pressure environment.
Summary of the invention
The task of the present invention is to provide a kind of easy to use, being coated on hard contact faying face can free forming with the shape of faying face, insoluble in gasoline, kerosene and lubricating oil, the oil resistant liquid sealant formula easily removed when can seal when-50 DEG C��220 DEG C and pressure are 500 atmospheric pressure environment and repair and compound method, the present invention is applicable to the field leakage of oils such as Aeronautics and Astronautics, electronics, machinery and seals. The housing being particularly suitable in engine oil liquid medium working seals with oil pump case faying face leakage of oil.
The above-mentioned purpose of the present invention is realized in, a kind of oil resistant liquid sealant formula of the bright proposition of we and compound method, by weight percentage, said composition contains: the acetal adhesive solution of 60%��70%, the phenolic resin of 25%��35% and 3%��7% Oleum Ricini composition, wherein said acetal adhesive solution preferred X98-11 acetal adhesive solution, described phenolic resin preferably 2123 phenolic resin; Its preparation method is: first 2123 phenolic resin are ground to form fine-powdered, while stirring powdery 2123 phenolic resin and Oleum Ricini are added in X98-11 acetal baking adhesive solution, place 2h��4h, after the three abundant swellings of component, be stirred continuously again, until become transparent, without grumeleuse, uniformly, color is dark red or dark-brown thick liquid matter.
In above-mentioned oil resistant liquid airproof glue composition,
1. acetal adhesive solution is base material, preferred X98-11 acetal baking adhesive solution, X98-11 acetal baking adhesive solution is that polyvinyl butyral is modified and thermosetting phenolic resin is molten to be formed in ethanol, not only there is good lower temperature resistance, and the high temperature of 215 DEG C can be stood for a long time, it is low temperature resistant, toughness, gluing, ageing resistance, oil resistivity, mechanical strength are good, it is adaptable under uniform temperature and pressure, glued metal, glass, ceramic grade manufacture laminated plastic. When-50 DEG C��220 DEG C and pressure are 500 atmospheric pressure environment functional.Therefore using the X98-11 acetal baking adhesive solution base material as oil resistant liquid sealant, its preferred content is 60%��70%;
2. phenolic resin is plasticizer, in order to improve the pliability of oil resistant liquid sealant, improve dried more crisp, viscosity is relatively low (its gelatin viscosity 30S��60S) the shortcoming of X98-11 acetal baking adhesive solution, preferably 2123 phenolic resin are as the plasticizer of this oil resistant liquid sealant, 2123 phenolic resin are by phenol, formaldehyde a kind of thermoplastic phenolic resin of polycondensation in acid medium, ethanol can be dissolved in, there is certain mechanical strength and electric insulation. Oil resistant liquid sealant so can be made not only to have certain denseness but also have certain mobility, and its preferred content is 25%��35%;
3. in order to increase stability and the wettability of oil resistant liquid sealant, contributing to the storage of liquid sealant, and keep fluid sealant stable performance during use, concurrently facilitating the metal surface that liquid sealant sealed has good wettability. Oleum Ricini is the non-drying oil of the thickness talking yellow, can be dissolved in the majority of organic solvent except fatty acid hydrocarbon, and Oleum Ricini is soluble in ethanol, is insoluble in petroleum ether, and insoluble in gasoline, the general oils and fats of ratio of viscosities is high, and freezing point is low, and burning-point is high. Oleum Ricini has good stability, Bao Sexing, wettability, lubricity, electric property and biological nature, and polyvinyl butyral has good intermiscibility. Therefore have selected Oleum Ricini as the stabilizer of this oil resistant liquid sealant and wetting agent. Its preferred content is 3%��7%;
4. first 2123 phenolic resin are ground to form fine-powdered during the preparation of oil resistant liquid sealant, while stirring powdery 2123 phenolic resin and Oleum Ricini are added in X98-11 acetal baking adhesive solution, place (2��4) h, make three abundant swellings of component, after the three abundant swellings of component, be stirred continuously again, until become transparent, without grumeleuse, uniformly, color is dark red or dark-brown thick liquid matter.
The combination of these components and the above-mentioned percentage range of each component, determined by lot of experiments, combinations thereof and percentage range make oil resistant liquid airproof glue composition of the present invention have easy to use, being coated on faying face can free forming with the shape of faying face, insoluble in gasoline, kerosene and lubricating oil, can seal when-50 DEG C��220 DEG C and pressure are 500 atmospheric pressure environment.
Oil resistant liquid sealant provided by the invention combination can be used for the field leakage of oils such as Aeronautics and Astronautics, electronics, machinery and seals, and the housing being particularly suitable in engine oil liquid medium working seals with oil pump case faying face leakage of oil.
Specific embodiment mode
According to inventive formulation percentage by weight, with X98-11 acetal baking adhesive solution as base material; 2123 phenolic resin are as plasticizer; Oleum Ricini is neutrality as the oil resistant liquid sealant that stabilizer and wetting agent are formulated, electromotor is sealed position corrosion-free.
Further illustrate the present invention by the examples below. in the examples below, can according to the acetal adhesive solution of liquid airproof glue composition 60%��70% of the present invention, any one concrete numerical value in the phenolic resin of 25%��35% and the Oleum Ricini weight percent content of 3%��7%, at normal temperatures and pressures, by each component specified in table 1,2123 phenolic aldehyde are ground to form fine-powdered respectively, while stirring powdery 2123 phenolic resin and Oleum Ricini are added in X98-11 acetal baking adhesive solution, place 2h��4h, after the three abundant swellings of component, it is stirred continuously again, until becoming transparent, without grumeleuse, uniformly, color is dark red or dark-brown thick liquid matter.
The formula composition of table 1 embodiment 1��3 and performance
| Each constituent content (weight portion) % | Example 1 | Example 2 | Example 3 |
| X98-11 acetal baking adhesive solution | 65 | 60 | 70 |
| 2123 phenolic aldehyde | 30 | 33 | 25 |
| Oleum Ricini | 5 | 7 | 5 |
| Compositions outward appearance | Dark-brown thick liquid matter | Dark-brown thick liquid matter | Dark-brown thick liquid matter |
| Acidity of Aikalinity | Liquid sealant and phenolphthalein and methyl orange Reaction is in neutrality. | The reaction of phthalein and methyl orange is in neutrality. | The reaction of phthalein and methyl orange is in neutrality. |
| Corrosion resistance | To red copper, aluminium alloy, steel part 100 DEG C, 3H Corrosion-free. | To red copper, aluminium alloy, steel part 100 DEG C, 3H is without corruption Erosion. | To red copper, aluminium alloy, steel part 100 DEG C, 3H is without corruption Erosion. |
| Construction | Formed one layer uniform and fine and close have viscous Property or elastic thin film. | Form toughness one layer uniform and fine and close or bullet The thin film of property. | Formed toughness one layer uniform and fine and close or Elastic thin film. |
Claims (2)
1. an oil resistant liquid airproof glue composition, by weight percentage, said composition contains the acetal adhesive solution of 60%��70% and the phenolic resin of 25%��35%, the Oleum Ricini composition of 3%��7%, it is characterized in that: described acetal adhesive solution is X98-11 acetal adhesive solution, described phenolic resin is 2123 phenolic resin.
2. the oil resistant liquid airproof glue composition described in claim 1, its preparation method is: first 2123 phenolic resin are ground to form fine-powdered, while stirring powdery 2123 phenolic resin and Oleum Ricini are added in X98-11 acetal baking adhesive solution, place 2h��4h, after three components are fully swelling, be stirred continuously again, until become transparent, without grumeleuse, uniformly, color is dark red or dark-brown thick liquid matter.
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| CN201410164775.2A CN103952099B (en) | 2014-04-23 | 2014-04-23 | A kind of oil resistant liquid airproof glue composition and compound method |
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| CN109575668A (en) * | 2018-10-31 | 2019-04-05 | 四川泛华航空仪表电器有限公司 | A kind of preparation method of oil resistant soak type non-drying putty |
| CN109266083A (en) * | 2018-10-31 | 2019-01-25 | 四川泛华航空仪表电器有限公司 | A kind of oil resistant soak type non-drying putty |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102337096A (en) * | 2010-07-19 | 2012-02-01 | 张苏侠 | Preparation method of phenolic-polyvinyl acetal resin adhesive |
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| JPS5035934B1 (en) * | 1970-07-24 | 1975-11-20 | ||
| JP2603603B2 (en) * | 1987-10-02 | 1997-04-23 | 東芝ケミカル株式会社 | Adhesive for metal-clad laminates |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102337096A (en) * | 2010-07-19 | 2012-02-01 | 张苏侠 | Preparation method of phenolic-polyvinyl acetal resin adhesive |
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| Title |
|---|
| 聚乙烯醇缩醛的应用;杨宝武;《中国胶粘剂》;19950330;第4卷(第2期);第42-47页 * |
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