CN1069929A - Antomatic tyre-mending liquid - Google Patents

Abstract

Automatic mending tyre liquid of the present invention injects it in tire in advance, just can prevent the gas leakage of losing heart, and contains materials such as rubber grain in the mixed solution of the present invention, and when hole appearred in tire, the subparticle in the liquid of effusion mended hole.By ethylene glycol, water, organobentonite, Xylo-Mucine, Sodium Nitrite, borax, dimethyl-silicon wet goods are formed, and can guarantee the suspended state of rubber powder as the mixed solution of rubber grain carrier.

Description

Antomatic tyre-mending liquid

(1)

Make the officers of various pneumatic-tyred vehicles very irritated be that tire loses heart in halfway or blows out.The rubber of tire has minute aperture, the contacting imprecision and can cause slowly and lose heart of tubeless tyre and wheel rim.Vehicle can be punctured by ground nail or sticker under steam, causes acute disappointing.Long distance High-speed is travelled and can be made the temperature of tire inner accumulated more and more higher, and can cause at last blowing out.More than these situations, the lighter is cast anchor vehicle, weight person can be overturned, be collided, even people's car Serious Accident of all ruining.Lose heart in whole world every year and the numeral of the human casualty accident that causes of blowing out is surprising because of tire.

Therefore, since the own pneumatic tyre, people just constantly are devoted to study the automatic mending tyre liquid how certain pre-protected tyre of perfusion loses heart in tire.The minute aperture that this product can be clogged rubber for tire prevents to lose heart slowly, can fill up hole automatically again when tire is poked by foreign matter, guarantees the safety traffic of vehicle.

One pickup monobasic tyres mending liquid is come out one after another, and effect is also constantly promoted.But up to now, product in the past all has the shortcoming and defect part, as has plenty of the gasing tank tyres mending liquid, and its composition can only make disappointing tire temporarily inflate, and drives to till the nearest service station.The tire tyres mending liquid that has can dry up or meet cold snap and freeze in tire, not only loses the mending-leakage effect, can damage the inwall of tire on the contrary.The various natural fibers of the usefulness that has or fibrous magnesium silicate and chemical substance, but these fibers can conglomeration gradually in tire, loses the tire patching effect, and the tire inner wall that can wear and tear, vehicle is trembleed in motion.Soon before, a kind of product occurring, is to expand the back as the base-material of filling up the tire hole in toluene with the regenerated rubber particle.This tyres mending liquid has certain strong point, but is distributed toluene gas by the toluene that rubber grain absorbs in tire, and the rubber of tire is become fragile, split easily, and toluene is hazardous substance, and the anxiety of blasting sometimes in the work-yard, also harmful to employee's health.Therefore also leave some room for improvement.

(2)

The principle of tire tyres mending liquid tire patching is very simple.The liquid of material that contains certain long and short fiber or subparticle material is injected in the tire by certain consumption in advance, when tire has hole to lose heart, the air handle of overflowing has fiber or particulate liquid releases together, the fiber or the particle that are squeezed in the hole sternly stop up hole, tire is no longer leaked gas, kept the enough pressure in the tire, made vehicle be continued to travel, and prevented contingent accident.

If which type of mending-leakage material above-mentioned principle simple simon says adopts so, it is but very remarkable what prescription to obtain best colloidal liquid with.This is to come half a century more, and the researchist seeks diligently.

(3)

The present invention has had new important breakthrough summing up on the basis of the relative merits of various products in the past.

Design theory of the present invention is: stops up or the material of filling up the tire hole should be harmless to the rubber of tire, and should be with the rubber homogeneous of tire, rather than heterogeneous.This material should be resilient, can extend and compress, and the granularity of this material should so that can enter the tire hole of different sizes, make its obstruction below 20 orders.The affinity of this material and rubber for tire can be combined as a whole it with the rubber of tire, to keep its eternal healing.

The big or small subparticle of this material should be to be suspended in a kind of gelationus mixing liquid, and this gelationus mixing liquid should have following characteristic: (1) makes the particle of packing material be in suspended state forever and do not precipitate.(2) make this particle be in dispersion state forever and can conglomerate.(3) the gluey mixed solution as particulate vector also should have following characteristic: a. stability-℃ do not freeze to low temperature-40, do not break up more than 110 ℃ to high temperature; B. dry-the eternal liquid that keeps in tire; C. viscosity and flowability-not only certain viscosity is arranged but also enough flowabilities are arranged can unrestricted flows in tire, can not cause wearing and tearing to tire inner wall; D. antirust and do not corrode-mixed solution must not corrode and can be antirust alloy rim.This kind mixed solution had better be nontoxic, do not burn and free of contamination.

(4)

For realizing above-mentioned design theory,, selected the natural rubber grain for material for repairing.It is very special to make natural rubber particulate technology.The natural rubber piece is refrigerated to below-70 ℃, makes it to become hard and easily crisp, repeatedly be ground to 20 orders following particle with the high-efficient grinding machine this moment.After recovering normal temperature, this micelle is flexible, and toughness slightly, can stick together under high-pressure extrusion, but usually in suspension, each particle is not wrapped and can stick together by Colloidal fluid, and this is a core of the present invention.Being fundamentally different than with toluene expands regnerated rubber powder, said above, practice proves, toluene can destroy the structure of rubber for tire, make it to become fragile and easily split, more be different from natural fiber, synthon or fibrous magnesium silicate, these materials are all heterogeneous with rubber, thereby can not guarantee secular making up.

Self-evident, when hole appearred in tire, the air band that releases gluey mixed solution and is outwards escaped together, and the big or small rubber grain that enters hole blocks hole immediately.Because the homogeneous of powerful extruding (air pressure in the tire also has 1.5 normal atmosphere at least) and rubber grain and tire can make hole for good and all mend.

With the natural rubber powder, some wood fiber powders have also been added, as subsidiary material.Wood fiber powder is effective to the minute aperture of filling up rubber for tire, and can improve the concentration and the viscosity of mixed solution.

Two major ingredient of gluey mixed solution are water and ethylene glycol.Because the low-freezing of ethylene glycol, high boiling point and be difficult for evaporation, water-soluble and can any mixed with water because it is neutral reaction, so it be important stablizer, particularly as the frostproofer of product of the present invention.When the weight ratio of mixture of water and ethylene glycol was 4: 5, the freezing tolerance of mixture reached-40 ℃; Ratio of mixture as the weight of water and ethylene glycol is 5: 4 o'clock, and the antifreeze ability of mixed solution reaches below-20 ℃.

For making mixed solution be gluey, we have adopted organobentonite and Xylo-Mucine this two kinds of good thickening materials and anti-sedimentation agent in prescription, to guarantee the glue of mixed solution of the present invention.

Organobentonite is to carry out ion-exchange by dimethyl octadecane hydroxyethyl ammonium is-ium compound with wilkinite, inorganic cation on the clay mineral character is replaced and the swelling mud acid dimethyl octadecane hydroxyethyl ammonium that obtains by organic cation.It has very strong suction force, and its aqueous solution has very big viscosity and anti-settling.And it has very big stability.

Adopted Xylo-Mucine.It is that raw material is made through suitable chemical reaction with Mierocrystalline cellulose, caustic soda and Mono Chloro Acetic Acid.Its water-intake rate and rate of expansion are big especially.Its viscosity in aqueous solution is very stable, and very high temperature resistant, is good suspension agent and anti-sedimentation agent.

In prescription, three kinds of additives have also been used: Sodium Nitrite, borax and dimethyl silicone oil.The effect of these three kinds of chemical is anticorrosive, sterilization and mildew-resistant.Dimethyl silicone oil increases lubricious and to the incorrosive effect of metal in addition, and mixed solution is had dispersiveness.

(5)

Adopt above-mentioned raw materials to realize design theory of the present invention fully.Be not difficult to find out high-tech character of the present invention.

Now the formula rate of various raw materials in tyre mending liquid is listed below (calculating by weight):

Water 40-52%

Ethylene glycol 52-40%

(water and ethylene glycol totally 92%)

Natural rubber powder 4%

Wood fiber powder 1.6%

Organobentonite 1%

Xylo-Mucine 0.6%

Sodium Nitrite 0.25%

Borax 0.25%

Dimethyl silicone oil 0.25%

The viscosity of whole mixed solution should be 50, and 000-60 is best between the 000CPS.It is neutral that its pH value should be, and as not being neutral because of relations such as water quality, then should blend adjustments, the pH value of adjustment this product, and use Di-Sodium Phosphate or monosodium phosphate are for well.

(6)

Manufacture method:

Use each agitation vat of size, capacity is respectively about 1200 liters of drum, about 120 liters of keg.Keg up, drum below, keg can discharge to drum by pipeline, the power of the stirring variable speed motor on the big keg is respectively 1.5 kilowatts and 2.5 kilowatts, rotating speed is 750--1500 rev/min.

In keg, pour 100 liter 60-65 ℃ hot water into, hotwire, slowly pour Xylo-Mucine into, be stirred to till the even pasty state, open the pipeline valve that is positioned at the keg bottom, be discharged into drum, pour the normal temperature cold water of 100 liters again in keg into, hotwire is poured organobentonite slowly into, till being stirred to even Colloidal fluid with the speed two-speed, drain into drum equally.

Pour the water of whole remainders and whole ethylene glycol in drum into, hotwire alternately is stirred to uniform gluey mixed solution with 750 rev/mins and 1500 rev/mins, and adding Sodium Nitrite, borax and dimethyl silicone oil continued at a slow speed stir about ten minutes.Last wood fiber powder and the natural rubber powder of successively dropping into, high-speed stirring gets final product approximately half an hour.Can bottle after static 24 hours.

(annotate: as the restriction of production unit because of appointed condition, can't make the natural rubber powder by oneself, or purchase less than the natural rubber powder, then also can replace with regnerated rubber powder temporarily, its particle should be below 20 orders.In the case, should mix toluene in regnerated rubber powder, make its expansion and obtain elasticity, the ratio of toluene is the 5-10% of rubber powder weight.Its method is after adding toluene, should stir, and places after three days in the stainless steel cask of tightly adding a cover and could use.Operation should be carried out in fire prevention airy insulated chamber.〕

(7)

Using method:

Vehicle tyre automatic mending tyre liquid of the present invention all is suitable for tubeless tire is arranged.During use the valve of tire is parked in 4 hours or 8 hours or position of clock and watch, backs out valve cap and take out valve inside, the wheel wheel promptly loses gas.Tyres mending liquid of the present invention is injected in the tire by inflating valve, till the appropriate amount (establishment scale in addition).Reinstall valve inside, valve cap, again the tire sufficient gas, drive after about 30 kilometers, because action of centrifugal force, this tyres mending liquid promptly forms layer protecting film in tire, and remaining liquid flows in tire.In vehicle travels, when tire is punctured by nail or other stickers, the air that releases is with sudden force brought mixed solution into hole, instantaneous time mends hole, and be nonvolatil mending, the tyres mending liquid of staying in the tire also can be brought into play prophylactic effect for a long time, with the same life-span of tire, or repeatedly mending-leakage till using up.This tyres mending liquid can also prevent tire because of running at high speed for a long time, running at high speed on the scorching hot road surface in the summer or the torrid zone particularly, and in tire the one of the main reasons of local accumulation high temperature-tyre explosion, thereby can prevent this class accident of driving a vehicle.

If find that tire has penetrated nail or other foreign matters, should pull out, and start car or rotating tire, hole is promptly mended immediately, has lost partly air pressure as tire, should be sufficient again.

Claims (3)

1, a kind of antomatic tyre-mending liquid is made up of material for repairing and gluey mixed solution, it is characterized in that: be made of ethylene glycol, water, natural rubber powder, wood fiber powder, organobentonite, carboxymethyl cellulose, borax, Sodium Nitrite and dimethyl silicone oil.

2, one of described material for repairing of claim 1 is characterized in that: the natural rubber powder, its granularity is below 20 orders.

3, the described constitute of claim 1 is characterized in that: realize that by following prescription ratio is calculated by weight:

Ethylene glycol 52-40%

Water 40-52%

Natural rubber powder 4%

Wood fibre confused 1.6%

Organobentonite 1%

Carboxymethyl cellulose 0.6%

Borax 0.25%

Sodium Nitrite 0.25%

Dimethyl silicone oil 0.25%