CN103804837A - Macromolecular elastic sealing material for improving safety performance of automobile tyre - Google Patents
Macromolecular elastic sealing material for improving safety performance of automobile tyre Download PDFInfo
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- CN103804837A CN103804837A CN201210454872.6A CN201210454872A CN103804837A CN 103804837 A CN103804837 A CN 103804837A CN 201210454872 A CN201210454872 A CN 201210454872A CN 103804837 A CN103804837 A CN 103804837A
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- sealing material
- elastic sealing
- automobile tyre
- polymer elastic
- high polymer
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Abstract
The invention relates to a macromolecular elastic sealing material for improving safety performance of an automobile tyre. The material comprises the following components in percentage by weight: 42-62% of a thermoplastic elastomer, 34-54% of a tackifier, 3-8% of a plasticizer, 0.5-1.5% of an antioxidant, 0-15% of filler and 0-1% of a catalyst. According to the technical scheme provided by the invention, the common automobile tyre is upgraded to the automobile tyre which has bullet-proof, leakage-proof, explosion-proof and prick-proof performances.
Description
Technical field
The present invention relates to a kind of macromolecular material, particularly relate to a kind of for improving the high polymer elastic sealing material of automobile tyre security energy.
Background technology
The automotive wheels that vehicle uses at present, has two types, and one has inner tube of a tyre automotive wheels, another kind of automobiles without inner tubes wheel, and what in institute's passenger vehicle, substantially all use at present is automobiles without inner tubes wheel, automobiles without inner tubes wheel is progressively promoted the use of in load-carrying vehicle national requirements.Automobiles without inner tubes wheel has the advantages such as good thermal diffusivity, flexibility, stopping property and ride comfort performance are good, inflation use length interval time, but when automobiles without inner tubes wheel tire is punctured by sharp object, because sharp object residues in automotive wheels carcass, the high pressure gas of automotive wheels tire is known from experience and is outwards leaked or blow out puncturing position; When sharp object pierces through doughnut and departs from doughnut, the high pressure gas in automobiles without inner tubes wheel leak rapidly, if automobile is blown out or leaked rapidly two kinds of situations in the process of running at high speed, motor-vehicle accident occur dangerous large, and car crash probability is high.
On the eighties in last century market, major technique is presented as the technological method in selfsealings liquid glue perfusion automotive wheels, just has at that time multiple self-sealing tire mending-leakage glue on market, is injected in automotive wheels tire.Along with the rotation of automotive wheels is evenly distributed in the internal surface of automotive wheels tire, in the time that automotive wheels tire is punctured by sharp object, cause automotive wheels to have a flat tire, self-sealing tire mending-leakage glue and airborne oxygen reaction and solidify, reach the object of automotive wheels tire leakproof.Its technological method shortcoming is, in liquid glue and air oxygen reaction form one deck scleroma brilliant its reduce the elasticity of automotive wheels tire, have a strong impact on various technical features and the life-span of automotive wheels tire, do not received by market.There is important breakthrough in this technical field of the nineties last century, found a kind of more advanced selfsealings glue, by solid-state to the polyisoprene rubber or butene rubber or the silicon rubber etc. that spray one deck 2-3mm in automotive wheels sticky jelly, the micro-gas leakage that solves automotive wheels tire with this kind of solid-state sticky jelly, the phenomenon of gas leakage while being punctured by sharp object.Adopt polyisoprene rubber or the solid-state sticky jelly such as butene rubber or silicon rubber, make shellproof, the leakproof of automotive wheels tire, the upgrade technique of resistance to bundle use and step further to real market, but there is many disadvantages and unfavorable factor: 1) because polyisoprene rubber, butene rubber, silicon rubber are all the important members in synthetic rubber, the very wide cost of material of range of application is high; 2) activity of this type of rubber, ageing resistance all cannot obtain substantial technological breakthrough, is difficult to prolonged application under the severe Working environment of automotive wheels; 3) the solid-state sticky jelly coating of the polyisoprene rubber in automotive wheels tire, butene rubber, silicon rubber, in high-speed running automobile, automotive wheels tire and ground friction, tire intensification is too high causes the coating in tire, under centrifugal action, local deformaton occurs, and affects the transient equilibrium of automotive wheels; 4) polyisoprene rubber, butene rubber, the silicone rubber material that adopt, cost and industrialized development all become the factor of restriction popularization.
Recent years, along with the fast development of petrochemical technology, various macromolecule resin class tackiness agents, synthetic rubber and rubber composite continue to bring out, the external high polymer elastic glue-leakage-resistant material of promoting has entered domestic market, due to the external import of conventional raw material, price is high, the limited product simplification that causes of supplying, cause this high polymer elastic glue-leakage-resistant material to come into the market to run into many difficulties, also hindered the industry development process of domestic this product simultaneously.
Therefore, found and release a kind of high temperature resistant, low temperature resistant, there is again the constructed performance of international high polymer elastic glue-leakage-resistant simultaneously, with low cost and can domesticly complete " the heatproof high molecule elasticity glue-leakage-resistant " of the purchasing of raw materials completely, become and really can make the march toward bottleneck problem of industrialization and marketability of doughnut upgrading.
Existing automotive wheels polymer selfsealings hot-melt adhesive powder aspect for upgrading, still has many defects.This series products is simple at first view, in fact very complicated, and the technical requirements of polymer selfsealings hot-melt adhesive powder is very high.Because it is the basic guarantee of vehicle operating safety, in use, automotive wheels tire need stand the test of working under the larger high low temperature temperature difference and long-time bearing pressure, to its transient equilibrium, run at high speed, the safety index requirement such as weather resistance is high especially.Polymer selfsealings hot-melt adhesive powder should be at the low temperature of-40 ° of C, vehicle high-speed when operation automotive wheels tire is punctured, is pierced through rear self-complementary and keep one's end up, vehicle is under high speed, the long-time travel situations of high temperature again, automotive wheels tire periphery envrionment temperature is during up to 120 ° of C left and right, after tire is punctured, pierces through, self-complementary and keep one's end up.Existing polymer selfsealings hot-melt adhesive powder be difficult to reach this require many due to polymer selfsealings hot-melt adhesive powder poor adhesive force and automotive wheels tire inner wall surface adhesion not firm, cause polymer selfsealings hot-melt adhesive powder pull-up to fall or the defect of off-clip, and be difficult to reach the undismayed function and efficacy of automotive wheels tire after upgrading.
In order to solve the problem of above-mentioned existence, the there's no one who doesn't or isn't hard thought of relevant manufacturer and institute is asked scheme solution, is found but have no for a long time applicable polymer selfsealings hot-melt adhesive powder always.Therefore how to found a kind of novel high polymer elastic sealing material, be used for solving automotive wheels tire upgrading Explosion-Proof, make it really can make the doughnut upgrading industrialization and marketability of marching toward, real one of the current important research and development problem that belongs to, also becomes current industry and is badly in need of improved target.
Because the defect that above-mentioned existing polymer selfsealings hot-melt adhesive powder exists, practical experience and the expertise of the inventor based on being engaged in this type of product design manufacture and enriching for many years, and the utilization of cooperation scientific principle, actively research and innovation in addition, to founding a kind of novel high polymer elastic sealing material, can improve general existing polymer selfsealings hot-melt adhesive powder, make it have more practicality.Through constantly research, design, and after repeatedly studying sample and improving, finally create the present invention who has practical value.
Summary of the invention
Adopting polymer selfsealings hot-melt adhesive powder to be sprayed at automotive wheels tire inner wall is the key problem in technology of automotive wheels upgrading: the one, and polymer selfsealings hot-melt adhesive powder should have high elasticity, resistance to air loss, tensile strength; The 2nd, polymer selfsealings hot-melt adhesive powder and automotive wheels tire inner wall surface have strong sticking power.Analyze some existing polymer selfsealings hot-melt adhesive powders, some substantially meets key problem in technology " " requirement on functional performance, but in the requirement of failing to reach key problem in technology " two " aspect the sticking power on automotive wheels tire inner wall surface.Its reason is, the material of automotive wheels tire is vulcanized rubber, and surface is inertia, and most of materials and its are difficult for bonding, and the automotive wheels tire inner wall top coat after upgrading very easily separates with tire inner wall in Vehicle Driving Cycle process.Thereby automotive wheels tire leakproof, resistance to bundle function after weakening or forfeiture upgrading.Founding a kind of high polymer elastic sealing material and both met key problem in technology " ", meet again key problem in technology " twos' " requirement, is exactly purpose of the present invention.
The object of the invention is to, overcome the defect that existing polymer selfsealings hot-melt adhesive powder exists, and provide a kind of high temperature resistant (being greater than 120 ° of C), low temperature resistant (lower than-40 ° of C), oil resistant, water-fast, and there is the high polymer elastic sealing material of high elasticity, resistance to air loss, tensile strength.
Another object of the present invention is to, overcome the defect that existing polymer selfsealings hot-melt adhesive powder exists, high polymer elastic sealing material (high-air-tightness, snappiness, high-tensile and high adhesive force) with excellent function passes through hot melting spraying technology, be sprayed at automotive wheels tire inner wall surface, formation is greater than the uniform coating that 3.5mm is thick, combines closely in coating and automotive wheels tire inner wall surface, cold formed after, form the highdensity flexible glue of a kind of polymer, there is superior elasticity and ductility.Be difficult for utilizing inner wall surface to depart from automotive wheels in high vehicle speeds process coating in mid-term.Can not change the transient equilibrium of automotive wheels, not increase the shock momentum in Vehicle Driving Cycle process.
A further object of the present invention is, overcome the defect that existing polymer selfsealings hot-melt adhesive powder exists, and a kind of high polymer elastic sealing material is provided, by hot melting spraying technology, be sprayed at automotive wheels tire inner wall surface, form and be greater than the uniform coating that 3.5mm is thick.When automotive wheels tire such as, by sharp object (spike thing, blade, glass cullet etc.) from automotive wheels tyre surface thrusts, the highdensity polymer flexible glue layer of tire inner wall, under the effect of automotive wheels internal gas pressure, close penetrator, penetrator is implemented automatically to glue and wrap up in sealing, reach the function that prevents gas leak in automotive wheels tire, improve vehicle driving safety.
A further object of the present invention is, overcome the defect that existing polymer selfsealings hot-melt adhesive powder exists, and a kind of high polymer elastic sealing material is provided, by hot melting spraying technology, be sprayed at automotive wheels tire inner wall surface, form and be greater than the uniform coating that 3.5mm is thick.When automotive wheels tire such as, by sharp object (spike thing, blade, glass cullet etc.) from automotive wheels tyre surface thrusts.Under snappiness, deep drawing quality and the high-tensile effect of high polymer elastic sealing material layer, when penetrator is pulled out or when Automatic-falling, the moment resilience of high polymer elastic sealing material is shunk, under gas pressure in automotive wheels, automatically close automotive wheels tire and poke place, the repaired filling of leak of automotive wheels tire, closed obstruction, reaches and prevents that the function of gas leak in automotive wheels tire from improving vehicle driving safety.
A further object of the present invention is, overcome the defect that existing polymer selfsealings hot-melt adhesive powder exists, and a kind of high polymer elastic sealing material is provided, by hot melting spraying technology, be sprayed at automotive wheels tire inner wall surface, form and be greater than the uniform coating that 3.5mm is thick.Can make automotive wheels within the scope of ° C-120 ° C of self-temperature-40, be not more than 8mm, length 10cm sharp object or steel nail pierce through in the situation of high vehicle speeds by diameter, automotive wheels tire can not lose heart; When sharp object or steel nail are in automotive wheels tire or while finding to be pulled out, the leak that high polymer elastic sealing material layer forms on automotive wheels tire extracting sharp object or steel nail, can moment auto-mending filling under gas pressure.
An also object of the present invention is, overcome the defect that existing polymer selfsealings hot-melt adhesive powder exists, and a kind of high polymer elastic sealing material is provided, by hot melting spraying technology, be sprayed at automotive wheels tire inner wall surface, form and be greater than the uniform coating that 3.5mm is thick.For thickening the sulfuric horizon of automotive wheels tire, it is played to certain explosion-proof.
The object of the invention to solve the technical problems realizes by the following technical solutions.What propose according to the present invention is a kind of for improving the high polymer elastic sealing material of automobile tyre security energy, wherein comprises following component and weight proportion: thermoplastic elastomer 42-62%; Tackifier 34-54%; Softening agent 3-8%; Antioxidant 0.5-1.5%; Weighting agent 0-15%; Catalyzer 0-1%.
The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.
Aforesaid for improving the high polymer elastic sealing material of automobile tyre security energy, wherein said thermoplastic elastomer: select in thermoplastic elastomer SIS, SBS, SEPS.
Aforesaid for improving the high polymer elastic sealing material of automobile tyre security energy, wherein said tackifier select in C5/C9 petroleum resin, coumarone indene resin, terpine resin.
Aforesaid for improving the high polymer elastic sealing material of automobile tyre security energy, wherein said softening agent selects in naphthenic oil, dioctyl phthalate (DOP) DOP.
Aforesaid for improving the high polymer elastic sealing material of automobile tyre security energy, wherein said antioxidant selects in antioxidant RD, 1076.
Aforesaid for improving the high polymer elastic sealing material of automobile tyre security energy, wherein said weighting agent selects in silica powder, carbon black.
Aforesaid for improving the high polymer elastic sealing material of automobile tyre security energy, wherein said catalyzer selects in α-amino isopropyl alcohol, METHYLPYRROLIDONE.
The present invention compared with prior art has obvious advantage and beneficial effect.By technique scheme, the present invention is a kind of can reach suitable technical progress and practicality for the high polymer elastic sealing material that improves automobile tyre security energy, and has the extensive utility value in industry, and it at least has following advantages:
1, the present invention uses tackifier, viscosity during for reducing thermoplastic elastomer hot melt, improves by heat resisting temperature and the open assembly time of viscosity, cohesive strength, adjusting high polymer elastic sealing material, improves operability and reduce costs.
2, the present invention has selected small proportion softening agent <10%; For increasing high polymer elastic sealing material ductility (and mobility), reduce hardness, improve elongation at break and it is low temperature resistant, make high polymer elastic sealing material adapt to doughnut and in the time of low temperature, run up and do not depart from and by sharp object with steel nail pierces through or bullet can selfsealings after puncturing.
3, the glue-line that the weighting agent that the present invention uses has hot melting spraying formation has resistance to elevated temperatures and persistence, has fire-retardant, rot-resistant effect simultaneously.
4, the catalyzer that the present invention uses, accelerates to realize after high polymer elastic sealing material hot melt from liquid state to solid-state conversion.
Above-mentioned explanation is only the general introduction of technical solution of the present invention, in order to better understand technique means of the present invention, and can be implemented according to the content of specification sheets, and for above and other object of the present invention, feature and advantage can be become apparent, especially exemplified by preferred embodiment, be described in detail as follows below.
Embodiment
Technique means and effect of taking for reaching predetermined goal of the invention in order further to set forth the present invention, below in conjunction with preferred embodiment, to propose according to the present invention a kind of for improve automobile tyre security can the function of high polymer elastic sealing material, the processing method of embodiment, operation and step, feature and effect, be described in detail as follows.
Embodiment mono-
Component: thermoplastic elastomer, tackifier, softening agent, antioxidant, weighting agent; Catalyzer; Proportioning: the proportioning of polymer selfsealings hot melt adhesive and component (take weight percent as standard) 45% thermoplastic elastomer, 45% tackifier, 5% softening agent, 1.5% antioxidant, 3% weighting agent, 0.5% catalyzer; Actual amount: take thermoplastic elastomer: SIS 300g, SEPS 150g; Tackifier: C5/C9 petroleum resin 150g, coumarone indene resin 150g, terpine resin 150g; Softening agent: naphthenic oil 50g; Antioxidant RD 15g; Weighting agent: silica powder 30g; Catalyzer: METHYLPYRROLIDONE 5g.
Embodiment bis-
Component: thermoplastic elastomer, tackifier, softening agent, antioxidant, weighting agent, catalyzer; Proportioning: the proportioning of polymer selfsealings hot melt adhesive and component (take weight percent as standard) 42% thermoplastic elastomer, 50 tackifier, 3% softening agent, 1.5% antioxidant, 3% weighting agent, 0.5% catalyzer; Actual amount: take thermoplastic elastomer: SBS 300g, SEPS 120g; Tackifier: C5/C9 petroleum resin 300g, coumarone indene resin 200g; Softening agent: dioctyl phthalate (DOP) DOP 30g; Antioxidant 107615g; Weighting agent: carbon black 30g; Catalyzer: METHYLPYRROLIDONE 5g.
Embodiment tri-
Component: thermoplastic elastomer, tackifier, softening agent, antioxidant, weighting agent, catalyzer; Proportioning: the proportioning of polymer selfsealings hot melt adhesive and component (take weight percent as standard) 58% thermoplastic elastomer, 34% tackifier, 3.5%% softening agent, 1% antioxidant, 3% weighting agent, 0.5% catalyzer; ; Actual amount: take thermoplastic elastomer: SIS 300g, SBS 280g; Tackifier: terpine resin 200g, coumarone indene resin 140g; Softening agent: naphthenic oil 20g, dioctyl phthalate (DOP) (DOP) 15g; Antioxidant RD 10g; Weighting agent: silica powder 30g; Catalyzer: α-amino isopropyl alcohol 5g.
The synthetic order that the present invention proposes high polymer elastic sealing material is: utilize crushing material equipment, the solid feed of high polymer elastic sealing material is ground under second-order transition temperature to <150 order particle; Then utilize continuous mixing mixing equipment that solid substances and liquid material after pulverizing are evenly mixed, mix rear metering pack.
In use, need within the scope of 50-350 ° of C, carry out hot melt to mixed material, utilize doughnut glue-spraying machine to be greater than the high polymer elastic sealing material layer of 3.5mm in doughnut inwall crown type surface spraying a layer thickness, can make common doughnut upgrade at low temperature-40 ° C to normal operation within the scope of ° C of high temperature+120, there is the doughnut of shellproof, leakproof, explosion-proof, resistance to bundle performance.
The above, it is only preferred embodiment of the present invention, not the present invention is done to any pro forma restriction, although the present invention discloses as above with preferred embodiment, but not in order to limit the present invention, any those skilled in the art, do not departing within the scope of technical solution of the present invention, when can utilizing the technology contents of above-mentioned announcement to make a little change or being modified to the equivalent embodiment of equivalent variations, in every case be not depart from technical solution of the present invention content, according to technical spirit of the present invention, any simple modification that above embodiment is done, equivalent variations and modification, all still belong in the scope of technical solution of the present invention.
Claims (7)
1. for improving a high polymer elastic sealing material for automobile tyre security energy, it is characterized in that comprising following component and weight proportion:
Thermoplastic elastomer: 42-62%;
Tackifier: 34-54%;
Softening agent: 3-8%;
Antioxidant: 0.5-1.5%;
Weighting agent: 0-15%;
Catalyzer: 0-1%.
2. according to claim 1 for improving the high polymer elastic sealing material of automobile tyre security energy, it is characterized in that wherein said thermoplastic elastomer: select in thermoplastic elastomer SIS, SBS, SEPS.
3. according to claim 1 for improving the high polymer elastic sealing material of automobile tyre security energy, it is characterized in that wherein said tackifier select in C5/C9 petroleum resin, coumarone indene resin, terpine resin.
4. according to claim 1 for improving the high polymer elastic sealing material of automobile tyre security energy, it is characterized in that wherein said softening agent selects in naphthenic oil, dioctyl phthalate (DOP) DOP.
5. according to claim 1 for improving the high polymer elastic sealing material of automobile tyre security energy, it is characterized in that wherein said antioxidant selects in antioxidant RD, 1076.
6. according to claim 1 for improving the high polymer elastic sealing material of automobile tyre security energy, it is characterized in that wherein said weighting agent selects in silica powder, carbon black.
7. according to claim 1 for improving the high polymer elastic sealing material of automobile tyre security energy, it is characterized in that wherein said catalyzer selects in α-amino isopropyl alcohol, METHYLPYRROLIDONE.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210454872.6A CN103804837A (en) | 2012-11-13 | 2012-11-13 | Macromolecular elastic sealing material for improving safety performance of automobile tyre |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210454872.6A CN103804837A (en) | 2012-11-13 | 2012-11-13 | Macromolecular elastic sealing material for improving safety performance of automobile tyre |
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| CN103804837A true CN103804837A (en) | 2014-05-21 |
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| CN201210454872.6A Pending CN103804837A (en) | 2012-11-13 | 2012-11-13 | Macromolecular elastic sealing material for improving safety performance of automobile tyre |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100999179A (en) * | 2007-01-12 | 2007-07-18 | 张海龙 | Pricking resistant, bullet-proof, leakage-proof safety tyre, its manufacturing method and its used polymer leakage-proof mending material |
| US20090114329A1 (en) * | 2006-05-01 | 2009-05-07 | Shusaku Tomoi | Pneumatic tire having a flexible mold releasable protective layer |
-
2012
- 2012-11-13 CN CN201210454872.6A patent/CN103804837A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090114329A1 (en) * | 2006-05-01 | 2009-05-07 | Shusaku Tomoi | Pneumatic tire having a flexible mold releasable protective layer |
| CN100999179A (en) * | 2007-01-12 | 2007-07-18 | 张海龙 | Pricking resistant, bullet-proof, leakage-proof safety tyre, its manufacturing method and its used polymer leakage-proof mending material |
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Application publication date: 20140521 |