CN1962803A - Self-sealing agent for vehicular tyre - Google Patents
Self-sealing agent for vehicular tyre Download PDFInfo
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- CN1962803A CN1962803A CN 200610095222 CN200610095222A CN1962803A CN 1962803 A CN1962803 A CN 1962803A CN 200610095222 CN200610095222 CN 200610095222 CN 200610095222 A CN200610095222 A CN 200610095222A CN 1962803 A CN1962803 A CN 1962803A
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Abstract
The invention discloses a vehicle tyre self-complementing agent, which comprises the following parts: butyl latex, sodium salicylate, leveling O, composite freezing preventive, oleoyl p-methoxyl phenylamine thiophene sodium, carbon black, rubber flour, wood powder, sodium dodecylbenzene sulfonate, polypropylene fibre and water. The invention integrates cobra without leaking, which avoids tyre repair.
Description
Technical field
The present invention relates to a kind of chemical products, specifically refer to self-sealing agent for vehicular tyre, can be automatically that dazzling reparation is intact after tonic adds the inherent wheel of tire puncture this.
Background technology
Since British invention pneumatic tyre, human transportation constantly develops, and when offering convenience to human society, has also brought a series of worries.In the driving process, tire is punctured owing to run into hard object vehicle, causes gas leakage, brings many inconvenience to people on the ground.Therefore, when in a single day tire is punctured in vehicle travels, can mend dazzling automatically, guarantee that the automatic tyre mending agent that vehicle continues to drive safely arises at the historic moment.But because a variety of causes, there is such-and-such defective in many products, and the product precipitation conglomeration that has influences the balance of travelling of vehicle, the product that has corrosion wheel hub, the product that has can not use under severe cold condition, and the product that has when tyre temperature is too high new combination reaction can take place and lose efficacy.These products are many with polyvinyl alcohol, Mierocrystalline cellulose, rubber grain, lime carbonate, water, xylogen etc. are raw material, owing between the strengthening agent particle and can not as traditional tire patching adhesive tape, combine closely between strengthening agent particle and the acanthopore, therefore under powerful tire pressure effect, still can leak gas gradually.
Recently, the self-mending agent for tyre puncture of natural rubber latex occurred using, can cause allergic but contain particular proteins in the natural rubber latex as base-material.When natural latex attached to skins such as hand, faces on the time, symptoms such as itch or redness will appear in this part, and, suck and to disperse when airborne natural rubber latex, might cause symptoms such as asthma attack, rhinitis, conjunctivitis.Therefore, use contain natural rubber latex when tonic, when repairing the tire of puncture, make accidentally from tonic attached to positions such as operator's hand, faces, or the operator suck with gas disperse jointly when tonic, anaphylaxis might take place cause healthy infringement.In addition, add ammonia in the natural rubber latex usually and make stablizer, therefore, when repairing is pierced through, can distribute the strong impulse smell, may produce detrimentally affect health from tonic.
At above-mentioned natural rubber latex, progressively develop recently and the deproteinated natural rubber latex.Though the Deproteinated natural rubber latex of this class can improve the anaphylaxis to human body effectively, do not eliminate or alleviate the intense stimulus smell of conduct generation when tonic uses.At present, as the pH regulator agent of natural rubber latex, attempting using Ammonia reagent in addition, but in actual applications, the reagent beyond the Ammonia is difficult to fully guarantee the stability of natural rubber latex in tonic.
Summary of the invention
At the prior art above shortcomings, the purpose of this invention is to provide a kind of stopping property and good stability, to human body have no adverse effects can be automatically after vehicle tyre punctures with the self-mending agent for tyre puncture of dazzling reparation.
The object of the present invention is achieved like this:
A kind of self-sealing agent for vehicular tyre, it is prepared from by following raw materials by weight percent,
Isobutylene-isoprene latex 45～70%
Sodium salicylate 0.5～0.9%
Paregal O 0.2～0.5%
Compound antifreezer 15～30%
Sodium oleyl p-anisidine sulfonate 0.8～2%
Carbon black 0.5～2%
Rubber powder 2～7%
Wood powder 1～5%
Sodium dodecylbenzene sulfonate 0.01～0.1%
Polypropylene fibre 1～3%
Water 1～10%,
Its preparation method is:
1., isobutylene-isoprene latex is added in the reactor adding sodium salicylate and paregal O under 2～3 revolutions per seconds stir speed (S.S.);
2., compound antifreezer is poured into stirred 25～35 minutes in the reactor;
3., add carbon black, be warming up to 45 ℃～55 ℃, stirred 25～35 minutes;
4., add sodium oleyl p-anisidine sulfonate, be warming up to 65 ℃～75 ℃, stirred 55～65 minutes;
5., in Sodium dodecylbenzene sulfonate, add entry and be made into sodium dodecyl benzene sulfonate aqueous solution, rubber powder and wood powder are mixed the back add in the sodium dodecyl benzene sulfonate aqueous solution, stir while adding, till all moistening;
6., with the 5th the step solidliquid mixture throw into the 4th the step reactor in, stirred 40～50 minutes;
7., add polypropylene fibre, stirs and stops heating after 20～30 minutes, bottle after stirring allows it be cooled to room temperature.
For prevent this product after adding tire not with other material generation chemical reaction, the pH value of this product preferably remains on 7～9, therefore after the preparation method stopped heating in the 7th step, be cooled to room temperature earlier and test gains pH value again, if its pH value does not need it is adjusted to 7～9 between 7～9, stirred then 55～65 minutes, and bottled after being cooled to room temperature again; If its pH value is 7～9, bottle after can directly being cooled to room temperature so.
Described compound antifreezer is the mixture of glycerine and ethylene glycol, and its ratio of mixture is 1: 2～2.5.
In order to make rubber powder that better dispersiveness be arranged in product and bigger with the friction of pricking the hole when the leak stopping, with to carry out surface activation before wood powder mixes and handle, the present invention mixes with wood powder after earlier rubber powder being handled with potassium permanganate solution again, and potassium permanganate and rubber powder mass ratio are 1: 20～60.Its treatment process is: the rubber powder bubble in potassium permanganate solution, is taken out after 10～20 minutes, and water cleans 3 times.
Self-mending agent for tyre puncture of the present invention is applicable to the rubber tyre of any vehicle, and can be in tire life-time service.During use, the tire valve heart is taken off, the gas in the tire is bled off fully, then this product is injected in the tire from valve inside, inflate at last tire again and load onto valve inside.When automobile when tire is punctured under steam, make this product and acanthopore friction form micelle by the effect of tire inner air pressure, can closely repair acanthopore intact.Owing to used isobutylene-isoprene latex to make main raw material, character and tire character after it solidifies are basic identical, thereby acanthopore and this product can well combine together, and is air tight fully, avoided the shortcoming that still can slowly leak gas behind the currently available products tire patching.Self-mending agent for tyre puncture of the present invention can permanently effective use in-40～110 ℃ of super large temperature ranges, good stability, and nontoxic, harmless, free from extraneous odour does not have corrosion, does not fire not explosion, use very convenient, but guarantee traffic safety simultaneously the work-ing life of significant prolongation tire.
Embodiment
Introduce the present invention in detail below in conjunction with embodiment.
This self-sealing agent for vehicular tyre, it is prepared from by following raw materials by weight percent,
Isobutylene-isoprene latex 45～70%
Sodium salicylate 0.5～0.9%
Paregal O 0.2～0.5%
Compound antifreezer 15～30%
Sodium oleyl p-anisidine sulfonate 0.8～2%
Carbon black 0.5～2%
Rubber powder 2～7%
Wood powder 1～5%
Sodium dodecylbenzene sulfonate 0.01～0.1%
Polypropylene fibre 1～3%
Water 1～10%,
Its preparation method is:
1., isobutylene-isoprene latex is added in the reactor adding sodium salicylate and paregal O under 2～3 revolutions per seconds stir speed (S.S.);
2., compound antifreezer is poured into stirred 25～35 minutes in the reactor;
3., add carbon black, be warming up to 45 ℃～55 ℃, stirred 25～35 minutes;
4., add sodium oleyl p-anisidine sulfonate, be warming up to 65 ℃～75 ℃, stirred 55～65 minutes;
5., in Sodium dodecylbenzene sulfonate, add entry and be made into sodium dodecyl benzene sulfonate aqueous solution, rubber powder and wood powder are mixed the back add in the sodium dodecyl benzene sulfonate aqueous solution, stir while adding, till all moistening;
6., with the 5th the step solidliquid mixture throw into the 4th the step reactor in, stirred 40～50 minutes;
7., add polypropylene fibre, stirs and stops heating after 20～30 minutes, continue to bottle after stirring allows it be cooled to room temperature.
The weight percentage ranges that above-mentioned raw materials is more optimized is:
Isobutylene-isoprene latex 50～60%
Sodium salicylate 0.6～0.8%
Paregal O 0.3～0.4%
Compound antifreezer 25～30%
Sodium oleyl p-anisidine sulfonate 1.2～1.6%
Carbon black 1.4～1.6%
Rubber powder 4～6%
Wood powder 2～3%
Sodium dodecylbenzene sulfonate 0.01～0.05%
Polypropylene fibre 2～2.5%
Water 3～7.5%.
Isobutylene-isoprene latex is a kind of artificial latex, the molecular fraction of institute's isoprene containing is 1.5～2%, and degree of unsaturation is extremely low in the molecule, the unreactiveness height, so mechanical stability and low-temperature stability are all fabulous, have good ageing-resistant, anti-ozone, anti-weather, chemical resistance.The present invention is a carrier with the isobutylene-isoprene latex, and resistance to air loss is good after the film forming.The total solids level of selected isobutylene-isoprene latex is between 48～60%, and its viscosity is 1500～6000mpas.
Among the present invention, sodium salicylate and paregal O are used, and the freeze-thaw stability of latex is improved.The sodium salicylate add-on is can significantly improve the freeze-thaw stability of latex at 0.5～0.9% o'clock.Paregal O is good latex stabilizer, adds ionogen and also can not make latex coagulation, has good flowability after making the latex freeze thawing, adds 0.2～0.5% paregal O simultaneously.
Compound antifreezer is the mixing solutions of glycerine and ethylene glycol, wherein adds the composite purpose of glycerine and ethylene glycol except improving the latex freeze-proof, mainly works aspect environmental protection.Contain trickling down in environment from tonic contingency of glycerine, insolation can not solidified in 40 days yet under burning sun, was easy to be washed away by the rainwater dilution.Glycerine is 1: 2～2.5 with the ratio of ethylene glycol.This compound antifreezer addition is 15～30% o'clock, not only can make product-40 ℃ of normal uses, can also improve the flowability of product, obtains better mending-leakage ability.
Sodium oleyl p-anisidine sulfonate is a kind of stablizer, and is high to the stability of heat, mechanical effect, is fit to do the cooperation stablizer of weighting agent, adds 0.8～2% and is advisable.
Rubber powder, wood powder and carbon black are as strengthening agent, be to be used for the stifled dazzling solid matter of tire, rubber powder is to be advisable more than 20 orders, and wood powder then requires more than 80 orders, and carbon black is more than 100 orders, consumption is a rubber powder 2～7%, wood powder 1～5%, carbon black 0.5～2%, rubber powder can be the natural rubber powder, also can be various elastomer powders, waste Crumb rubber etc., carbon black be selected N660.In order to make rubber powder that better dispersiveness be arranged in product and bigger with the friction of pricking the hole when the leak stopping, with can carry out surface activation with potassium permanganate solution before wood powder mixes and handle, potassium permanganate and rubber powder mass ratio are 1: 20～60, concrete treatment process is: rubber powder is steeped in potassium permanganate solution, take out after 10～20 minutes, water cleans 3 times.Handle rubber powder later with potassium permanganate solution better dispersiveness and leak stopping can be arranged.
Sodium dodecylbenzene sulfonate is a kind of dispersion agent and wetting agent, and addition is 0.01～0.1%.The strengthening agent moistening with wetting agent can mix with the latex base-material well.
Polypropene staple can increase the polymkeric substance sprue intensity of tire Zha Kongchu, and is increased in the duration of service in the tire.The consumption of polypropene staple is between 1～3%, and addition is bad less than the effect of leak stopping in 1% o'clock, and addition was greater than 3% o'clock, and the easy conglomeration of fiber causes this product to be obstructed when valve inside pours into tire.Staple length is 0.1～7mm, and length-to-diameter ratio is 5～40, this fibre density 0.91g/cm3, can be evenly in being dispersed in product and do not precipitate.
For prevent this product after adding tire with other material generation chemical reaction, can add a small amount of alkaline matter and regulate the pH value, as sodium hydroxide, potassium hydroxide etc., self-mending agent for tyre puncture pH value is controlled between 7～9.Certainly, if the self-mending agent for tyre puncture pH value itself for preparing has been between 7～9, so then need not to add again alkaline matter.Its control method is: after preparation method the 7th stops heating in the step, be cooled to room temperature and test gains pH value again, if the pH value not between 7～9 then add alkaline matter it is adjusted to 7～9, stirred 55～65 minutes then, bottle after being cooled to room temperature again.
Below provide the embodiment of several formula for a product.
| Component | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 |
| Isobutylene-isoprene latex | 50％ | 55％ | 55％ | 55％ | 60％ |
| Sodium salicylate | 0.7％ | 0.5％ | 0.7％ | 0.9％ | 0.7％ |
| Paregal O | 0.3％ | 0.2％ | 0.3％ | 0.5％ | 0.3％ |
| Ethylene glycol | 20％ | 11％ | 20％ | 22.5％ | 18％ |
| Glycerine | 8％ | 5％ | 8％ | 9％ | 8％ |
| Sodium oleyl p-anisidine sulfonate | 1.4％ | 2％ | 1.4％ | 0.8％ | 1.4％ |
| Carbon black | 1.5％ | 2％ | 1.5％ | 0.5％ | 1.5％ |
| Rubber powder | 5％ | 7％ | 5％ | 1％ | 4％ |
| Wood powder | 2.5％ | 5％ | 2.5％ | 1％ | 2.5％ |
| Sodium dodecylbenzene sulfonate | 0.01％ | 0.05％ | 0.01％ | 0.1％ | 0.01％ |
| Polypropylene fibre | 2.2％ | 3％ | 2.2％ | 1％ | 2.2％ |
| Water | 8.39％6 | 9.25％ | 3.39％ | 7.7％ | 1.39％ |
One of them concrete preparation method is:
1, isobutylene-isoprene latex is added in the reactor, add sodium salicylate and paregal O under the gentle agitation;
2, ethylene glycol and glycerine are mixed, pour in the still and stirred 30 minutes;
3, add carbon black, be warming up to 50 ℃, stirred 30 minutes;
4, add sodium oleyl p-anisidine sulfonate, be warming up to 70 ℃, stirred 60 minutes;
5, rubber powder is steeped in potassium permanganate solution, take out after 15 minutes, water cleans 3 times;
6, rubber powder after will handling and wood powder mix, and add in the aqueous solution of Sodium dodecylbenzene sulfonate and stir, till all moistening;
7, above-mentioned the 6th step solidliquid mixture is thrown in the reactor, stirred 45 minutes;
8, add polypropylene fibre, stirs and stop after 25 minutes heating;
9, add sodium hydroxide, regulating the pH value is between 7～9, stirs 60 minutes, is cooled to room temperature, bottling.
Performance test to this product:
1, pierces through toolability
The valve inside of an off-road tire is pulled up, after gas has been let out, packed into from tonic 450～600ml, load onto valve inside, be inflated to tire standards air pressure from valve inside.Awl with diameter 6mm punctures tire, drives immediately to travel, and wheel rotation 2 circles were both mended with interior acanthopore.Repeat 5 times acanthopore, tire is still mended acanthopore live in the time of rotation 2 circles behind each acanthopore, carries out tire pressure and measures the loss that almost can't find tire pressure.Then Der Gelaendewagen was used 3 months under the road conditions condition of severe, tire is not carried out tonifying Qi, punctured tire does not still have gas leak phenomenon to take place after 3 months.
2, freeze-proof
With preserving 3 hours down in-40 ℃ of preparation from tonic, do not freeze from tonic, still have good flowability.Return to room temperature, state does not still change.Repeat 5 times freezing, should not change all the time from the tonic state.
3, high-temperature stability
To under 110 ℃ high temperature, place 1 day from tonic, be cooled to room temperature then, the change of proterties will not still take place from tonic.
4, the vehicle balance of travelling
The to the utmost point speed limit degree that when tire does not add from tonic vehicle travelled is brought to a halt to stopping by very fast state again.According to the different kinds of tyre specification, the 300～600ml that adds equivalent in each tire of vehicle carries out above-mentioned speed-raising and brake driving from tonic then, does not feel that the vehicle that has added from tonic has obvious difference in motion with the vehicle that does not add from tonic.
Claims (6)
1, a kind of self-sealing agent for vehicular tyre is characterized in that: it is prepared from by following raw materials by weight percent,
Isobutylene-isoprene latex 45～70%
Sodium salicylate 0.5～0.9%
Paregal O 0.2～0.5%
Compound antifreezer 15～30%
Sodium oleyl p-anisidine sulfonate 0.8～2%
Carbon black 0.5～2%
Rubber powder 2～7%
Wood powder 1～5%
Sodium dodecylbenzene sulfonate 0.01～0.1%
Polypropylene fibre 1～3%
Water 1～10%,
Its preparation method is:
1., isobutylene-isoprene latex is added in the reactor adding sodium salicylate and paregal O under 2～3 revolutions per seconds stir speed (S.S.);
2., compound antifreezer is poured into stirred 25～35 minutes in the reactor;
3., add carbon black, be warming up to 45 ℃～55 ℃, stirred 25～35 minutes;
4., add sodium oleyl p-anisidine sulfonate, be warming up to 65 ℃～75 ℃, stirred 55～65 minutes;
5., in Sodium dodecylbenzene sulfonate, add entry and form sodium dodecyl benzene sulfonate aqueous solution, rubber powder and wood powder are mixed the back add in the sodium dodecyl benzene sulfonate aqueous solution, stir while adding, till all moistening;
6., with the 5th the step solidliquid mixture throw into the 4th the step reactor in, stirred 40～50 minutes;
7., add polypropylene fibre, stirs and stops heating after 20～30 minutes, bottle after stirring allows it be cooled to room temperature.
2, self-sealing agent for vehicular tyre according to claim 1 is characterized in that: described compound antifreezer is the mixture of glycerine and ethylene glycol, and its ratio of mixture is 1: 2～2.5.
3, self-sealing agent for vehicular tyre according to claim 1 and 2, it is characterized in that: mix with wood powder again after earlier rubber powder being handled with potassium permanganate solution in the preparation process, potassium permanganate and rubber powder mass ratio are 1: 20～60, its treatment process is: rubber powder is steeped in potassium permanganate solution, take out after 10～20 minutes, water cleans 3 times.
4, self-sealing agent for vehicular tyre according to claim 1, it is characterized in that: described preparation method stops to heat postcooling the 7th step to room temperature test gains pH value, if its pH value is not adjusted to 7～9 with it between 7～9, stirred then 55～65 minutes, bottle after being cooled to room temperature again.
5, self-sealing agent for vehicular tyre according to claim 1 is characterized in that: the weight percent of described raw material is,
Isobutylene-isoprene latex 50～60%
Sodium salicylate 0.6～0.8%
Paregal O 0.3～0.4%
Compound antifreezer 25～30%
Sodium oleyl p-anisidine sulfonate 1.2～1.6%
Carbon black 1.4～1.6%
Rubber powder 4～6%
Wood powder 2～3%
Sodium dodecylbenzene sulfonate 0.01～0.05%
Polypropylene fibre 2～2.5%
Water 3～7.5%.
6, self-sealing agent for vehicular tyre according to claim 5 is characterized in that: the weight percent of described raw material is,
Isobutylene-isoprene latex 55%
Sodium salicylate 0.7%
Paregal O 0.3%
Compound antifreezer 28%
Sodium oleyl p-anisidine sulfonate 1.4%
Carbon black 1.5%
Rubber powder 5%
Wood powder 2.5%
Sodium dodecylbenzene sulfonate 0.01%
Polypropylene fibre 2.2%
Water 3.39%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100952221A CN100500789C (en) | 2006-11-21 | 2006-11-21 | Self-sealing agent for vehicular tyre |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100952221A CN100500789C (en) | 2006-11-21 | 2006-11-21 | Self-sealing agent for vehicular tyre |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1962803A true CN1962803A (en) | 2007-05-16 |
| CN100500789C CN100500789C (en) | 2009-06-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100952221A Expired - Fee Related CN100500789C (en) | 2006-11-21 | 2006-11-21 | Self-sealing agent for vehicular tyre |
Country Status (1)
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| CN (1) | CN100500789C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103849155A (en) * | 2012-12-07 | 2014-06-11 | 成都俊马密封制品有限公司 | Fiber cork rubber sealing material and preparation method thereof |
| CN105860929A (en) * | 2016-04-07 | 2016-08-17 | 四川理工学院 | Environment-friendly efficient automatic-inflation tire repair fluid and preparation method thereof |
| CN109312210A (en) * | 2016-06-29 | 2019-02-05 | 横滨橡胶株式会社 | Tyre puncture sealant and tyre puncture repairing external member |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW201219549A (en) * | 2010-11-08 | 2012-05-16 | qing-chuan Lin | directly and rapidly accumulating at the pierced puncture of the tire to prevent leakage of the gas |
| CN103031109B (en) * | 2011-09-29 | 2015-07-22 | 比亚迪股份有限公司 | Automatic tire patching agent |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4919183A (en) * | 1983-09-28 | 1990-04-24 | The Goodyear Tire & Rubber Company | Self sealing pneumatic tire |
| CN1096044A (en) * | 1993-05-29 | 1994-12-07 | 郑州市少林精细化工厂 | Self-mending agent for tyre puncture |
| US7073550B2 (en) * | 2004-03-17 | 2006-07-11 | The Goodyear Tire & Rubber Company | Pneumatic tire having built-in colored sealant layer and preparation thereof |
| US20060254687A1 (en) * | 2005-05-11 | 2006-11-16 | Sandstrom Paul H | Pneumatic tire with built-in sealant containing pre-hydrophobated silica |
-
2006
- 2006-11-21 CN CNB2006100952221A patent/CN100500789C/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103849155A (en) * | 2012-12-07 | 2014-06-11 | 成都俊马密封制品有限公司 | Fiber cork rubber sealing material and preparation method thereof |
| CN103849155B (en) * | 2012-12-07 | 2016-09-28 | 成都俊马密封制品有限公司 | Fibre cork rubber encapsulant and preparation method thereof |
| CN105860929A (en) * | 2016-04-07 | 2016-08-17 | 四川理工学院 | Environment-friendly efficient automatic-inflation tire repair fluid and preparation method thereof |
| CN109312210A (en) * | 2016-06-29 | 2019-02-05 | 横滨橡胶株式会社 | Tyre puncture sealant and tyre puncture repairing external member |
| CN109312210B (en) * | 2016-06-29 | 2021-07-09 | 横滨橡胶株式会社 | Sealant for tire puncture and repair kit for tire puncture |
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| Publication number | Publication date |
|---|---|
| CN100500789C (en) | 2009-06-17 |
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Granted publication date: 20090617 Termination date: 20121121 |