CN103849283A - Temperature-resistant macromolecule self-seal rubber and manufacturing method thereof - Google Patents
Temperature-resistant macromolecule self-seal rubber and manufacturing method thereof Download PDFInfo
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- CN103849283A CN103849283A CN201310472475.6A CN201310472475A CN103849283A CN 103849283 A CN103849283 A CN 103849283A CN 201310472475 A CN201310472475 A CN 201310472475A CN 103849283 A CN103849283 A CN 103849283A
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Abstract
The invention discloses temperature-resistant macromolecule self-seal rubber and a manufacturing method thereof, and the self-seal rubber is composed of the following components in parts by mass: 100 parts of thermoplastic elastomer, 75-86.5 parts of tackifier, 6-11.7 parts of plasticizer, 1-3 parts of antiaging agent and/or antioxidant and 4-19 parts of foaming agent. The temperature-resistant macromolecule self-seal rubber is sprayed on the inner wall of a tire by using an automobile tire rubber sprayer without performing any traumatic processing on the inner wall of the tire and only performing cleaning and drying treatment on the inner wall of the tire to remove the release agent, a layer of temperature-resistant macromolecule self-seal rubber with thickness of more than 3.5mm is sprayed on all of the inner wall or partial crown type body of the tire, and then the tire is upgraded that the tire can normally work within low temperature of minus 40 DEG C to high temperature 120 DEG C, and has the bullet-proof, leak-proof and puncture-proof performances. The invention further discloses a manufacturing method of the temperature resistant macromolecule self-seal rubber.
Description
Technical field
The present invention relates to a kind of heatproof high molecule for automobile conventional tyre safety upgrade from sealing and manufacture method thereof.
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, progressively promotes the use of automobiles without inner tubes wheel for load-carrying vehicle national requirements.Use and the advantage such as grow interval time because automobiles without inner tubes wheel has the good and inflation of good thermal diffusivity, flexibility, stopping property, ride comfort, performance, 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 forms the brilliant elasticity that can reduce automotive wheels tire of one deck scleroma, has a strong impact on various technical features and the life-span of automotive wheels tire, do not received by market.Say that important breakthrough appears in century this technical field of the nineties, found a kind of more advanced selfsealings glue, it is the solid-state sticky jelly such as polyisoprene rubber or butene rubber or silicon rubber that sprays one deck 2～3mm in automotive wheels, 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 automobile stove 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, heat up too high and coating in tire of tire, under centrifugal action, there is local deformaton, affect 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 its popularization of restriction.
Recent years, along with the fast development of petrochemical technology, continuing to bring out of various macromolecule resin class tackiness agents, synthetic rubber and rubber composite, the external polymer of promoting has entered my domestic market from adhesive material, due to the external import of conventional raw material, price is high, the limited product simplification that causes of supplying, cause this polymer to come into the market to run into many difficulties from adhesive material, also hindered the industry development process of domestic this product simultaneously.
Therefore, founding and release a kind of high temperature resistant, low temperature resistant while has again international polymer from the constructed performance of sealing, with low cost and can domesticly complete " heatproof high molecule is from the sealing " of the purchasing of raw materials completely, become and really can make the march toward bottleneck problem of industrialization and marketability of automobile conventional tyre upgrading.
As can be seen here, above-mentioned existing automotive wheels upgrading from sealing aspect, obviously still has many defects with heatproof high molecule.But its product is simple at first view, in fact very complicated, heatproof high molecule is very high because it is the basic guarantee of vehicle operating safety from sealing technical requirements, next is along with automotive wheels tire need stand the larger high low temperature temperature difference and the test of long-time bearing pressure work, and to transient equilibrium, run at high speed, the safety index of durability of product requires high especially, bear the low temperature of-40 ℃, after in the time that vehicle high-speed moves, automotive wheels tire is punctured, pierces through, heatproof high molecule is self-complementary and keep one's end up from sealing.Vehicle at a high speed, under the long-time travel situations of high temperature, when automotive wheels tire periphery envrionment temperature can reach 120 ℃ of left and right, after tire is punctured, pierces through, heatproof high molecule is self-complementary and keep one's end up from sealing.Existing heatproof high molecule is difficult to reach this requirement or because heatproof high molecule is not firm from sealing poor adhesive force and automotive wheels tire inner wall surface adhesion from sealing, heatproof high molecule comes off or the defect of off-clip from adhesive layer, and is difficult to reach the undismayed function and efficacy of automotive wheels tire after upgrading.And need be further improved.In order to solve the problem of above-mentioned existence, relevant manufacturer and research institute, the there's no one who doesn't or isn't hard thought of institute are asked scheme solution, are found from sealing but have no for a long time applicable heatproof high molecule always.Therefore how to found a kind of new heatproof high molecule from sealing, be used for solving automotive wheels tire upgrading Explosion-Proof, make it really can make the automobile conventional tyre 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 puts aside improved target.
Summary of the invention
Adopting heatproof high molecule to be sprayed at automotive wheels tire inner wall from sealing is the key problem in technology of automotive wheels upgrading: the one, and heatproof high molecule should have high elasticity, resistance to air loss, tensile strength from sealing; Its two heatproof high molecule has strong sticking power from sealing and automotive wheels tire inner wall surface.Analyze some existing heatproof high molecules from sealing, some substantially meets key problem in technology " " requirement on functional performance, but is that the sticking power aspect on automotive wheels tire inner wall surface fails to reach key problem in technology " twos' " requirement.Its reason is, the material of automotive wheels tire is vulcanized rubber, and surface is inertia very, 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 slacken or lose the automotive wheels tire leakproof after upgrading, resistance to bundle function.Founding a kind of heatproof high molecule and both met key problem in technology " " from sealing, meet again key problem in technology " twos' " requirement, is exactly purpose of the present invention.
Particularly, the object of the invention is to, overcome the defect that existing heatproof high molecule exists from sealing, and a kind of high temperature resistant (being greater than 120 ℃), low temperature resistant (lower than-40 ℃), oil-proofness, water tolerance are provided, and the heatproof high molecule for automobile conventional tyre safety upgrade with snappiness, height resistance to air loss, high-tensile and strong adhesive force is from sealing.
Another object of the present invention is to, the preparation method of a kind of above-mentioned this heatproof high molecule from sealing is provided.
The object of the invention to solve the technical problems realizes by the following technical solutions.According to the present invention propose heatproof high molecule from sealing, its composition and proportion by weight: thermoplastic elastomer: 100; Tackifier: 75～86.5; Softening agent: 6～11.7; Anti-aging agent and/or antioxidant: 1～3; Whipping agent: 4～19.
The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.
Aforesaid heatproof high molecule is from sealing, and wherein said thermoplastic elastomer, is selected from one or more mixing in thermoplastic elastomer SIS, SBS, SEBS, SEPS; Described tackifier are selected from one or more mixing of terpine resin, ester gum, polyisobutene; Described antioxidant is selected from antioxidant 1076,1010 or its to be mixed, described anti-aging agent be selected from anti-aging agent RD, 4010 and 4010A in one or more mixing; Described softening agent is selected from naphthenic oil, dimixo-octyl phthalate or its mixing; Described whipping agent is selected from blowing agent AC, ADC or its mixing.
The object of the invention to solve the technical problems also realizes by the following technical solutions.According to the present invention propose manufacture as the aforementioned heatproof high molecule from the method for sealing, wherein: utilize crushing material equipment, solid substances be ground into <150 order particle; Utilize continous way mixing equipment that solid substances and liquid material after pulverizing are evenly mixed, mix rear metering pack.
The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.
Aforesaid heatproof high molecule, from the manufacture method of sealing, is characterized in that described continous way mixing equipment is propeller stirrer, high-shear decollator or planetary-type mixer.
Aforesaid heatproof high molecule, from the manufacture method of sealing, is characterized in that described continous way mixing equipment is planetary-type mixer.
The present invention compared with prior art has obvious advantage and beneficial effect.By technique scheme, a kind of polymer selfsealings thermosol for automobile conventional tyre safety upgrade of the present invention and preparation method thereof can reach suitable technical progress and practicality, and there is the extensive utility value in industry, polymer selfsealings hot melt colloidal sol of the present invention is applied to doughnut inwall, can combine closely with automotive wheels tire inner wall surface, form the highdensity flexible glue of a kind of polymer, it at least can reach following beneficial effect:
(1) coating that heatproof high molecule of the present invention forms in automoblie tyre inner wall surface from sealing, there is superior elasticity and ductility, be difficult for departing from automotive wheels inner wall surface 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.
(2) play certain explosion-proof.
(3) when automotive wheels tire such as, by sharp object (spike thing, blade, glass cullet etc.) from automotive wheels tyre surface thrusts, the highdensity flexible glue layer of polymer 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.
(4) when automotive wheels tire such as, by sharp object (spike thing, blade, glass cullet etc.) from automotive wheels tyre surface thrusts, at heatproof high molecule under snappiness, deep drawing quality and the high-tensile effect of adhesive layer, when penetrator is pulled out or when Automatic-falling, heatproof high molecule shrinks from sealing moment resilience, 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.
(5) in the situation of high vehicle speeds by diameter be not more than 8mm, length is not more than 10cm sharp object or steel nail pierces through, 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 heatproof high molecule forms extracting sharp object or steel nail from adhesive layer on automotive wheels tire, can moment auto-mending filling under gas pressure.
(6) can make automotive wheels run well within the scope of self-temperature-40 ℃～120 ℃, can make doughnut upgrade to, can be in automotive wheels tire periphery envrionment temperature: within the scope of low temperature-40 ℃ to high temperature+120 ℃, at a high speed or run at a low speed, by diameter be not more than 8mm, length is not more than 10cm sharp object and steel nail pierces through or bullet punctures, upgrading after automotive wheels tire keep one's end up.After upgrading, automotive wheels has shellproof, leakproof, the function and efficacy of resistance to bundle.In spraying process, without any damaging processing is carried out in automotive wheels tire inner wall surface, only tire inner wall is gone to releasing agent cleaning, drying treatment.
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.
Accompanying drawing explanation
Nothing
Embodiment
Technique means and effect of taking for reaching predetermined goal of the invention for further setting forth the present invention, below in conjunction with preferred embodiment, a kind of heatproof high molecule proposing according to the present invention, from its embodiment of sealing and preparation method thereof, feature and effect thereof, is described in detail as follows.
Heatproof high molecule for automobile conventional tyre safety upgrade of the present invention is from composition and the proportion by weight of sealing:
Thermoplastic elastomer: 100;
Tackifier: 58～135;
Softening agent: 3.5～20;
Anti-aging agent and/or antioxidant: 0.75～5;
Whipping agent: 2～5%.
Heatproof high molecule for automobile conventional tyre safety upgrade of the present invention is all right from composition and the proportion by weight of sealing:
Thermoplastic elastomer 100;
Tackifier: 75～125;
Softening agent: 6～12.5;
Anti-aging agent and/or antioxidant: 1～2.5;
Whipping agent: 4～25.
Wherein, described thermoplastic elastomer, preferably one or more in thermoplastic elastomer SIS, SBS, SEBS, SEPS mix, most preferably one or more mixing in SIS, SBS, SEBS.Described tackifier: be preferable over one or more mixing in terpine resin, ester gum, polyisobutene.Described antioxidant and anti-aging agent are preferable over respectively antioxidant 1076,1010 or it mixes, one or more mixing in anti-aging agent RD, 4010,4010A.Described softening agent is preferable over naphthenic oil, dimixo-octyl phthalate (DIOP) or its mixing; Described whipping agent is preferable over blowing agent AC, ADC or its mixing.
The present invention obtains through abundant experimental results analysis: the present invention uses tackifier, viscosity during for reducing thermoplastic elastomer hot melt, improves by viscosity and cohesive strength, adjusting heat resisting temperature and open assembly time, improves operability and reduce costs.The present invention has selected small proportion softening agent (<10%), for increasing heatproof high molecule from sealing ductility (and mobility), reduce hardness, improve elongation at break and it is high temperature resistant, low temperature resistant, make after the self-styled rubber powder hot melt of heatproof high molecule, the glue-line spraying in doughnut, adapt to tire AC and zinc oxide, Zinic stearas mixture under high temperature, low-temperature condition and run up and do not depart from, and by sharp object with steel nail pierces through or bullet can selfsealings after puncturing.
Above-mentioned this heatproof high molecule of the present invention is from the manufacture method of sealing, and equipment of resin making adopts batch-mixed equipment or continous way mixing equipment.Wherein, the preferred propeller stirrer of batch-mixed equipment, high-shear decollator or planetary-type mixer, most preferably planetary-type mixer; In continous way mixing equipment, twin screw extruder is the most effective equipment.
In the time adopting batch-mixed equipment, this heatproof high molecule from the manufacture method of sealing is: batch-mixed equipment preheating (preheating melt temperature is according to selecting raw material general control at 120～210 ℃), reaches after thermoplastic elastomer, tackifier, anti-aging agent and/or antioxidant, softening agent are added the complete melting of batch-mixed equipment by preheating melt temperature and clamp-on forming mould.
In the time adopting continuous low speed mixing equipment, this heatproof high molecule from the manufacture method of sealing is: continuous-blending equipment preheating (preheating melt temperature is according to selecting raw material general control at 120～210 ℃), first in order tackifier-softening agent-anti-aging agent and/or antioxidant are added after heat fusing, add thermoplastic elastomer heating and melting, melt temperature is according to selecting raw material general control at 120～210 ℃ again.In the time adopting continuous high speed mixing equipment, first thermoplastic elastomer, tackifier, softening agent are added together, then add other compositions, after melting, clamp-on forming mould completely.
This heatproof high molecule of the present invention is applied to automoblie tyre from sealing, by hot melting spraying technology, be sprayed at automoblie tyre inner wall surface all or inner wall surface crown type body divide, and form be greater than the uniform coating that 3.5mm is thick, for the sulfuric horizon of thickening automotive wheels tire, it is played to certain explosion-proof.Coating and doughnut inner wall surface are combined closely, and after cooling and shaping, form the highdensity flexible glue of a kind of polymer, have superior elasticity and ductility.
Embodiment 1
Heatproof high molecule from the proportioning of sealing and component (take mass parts % as standard) 100 thermoplastic elastomers, 86.5 tackifier, 11.7 softening agent, antioxidant and anti-aging agent totally 3, whipping agent 19; Take thermoplastic elastomer SIS80, thermoplastic elastomer SEBS20; Tackifier: terpine resin 75, polyisobutene 11.5; Softening agent: naphthenic oil 11, dimixo-octyl phthalate 0.7; Antioxidant 4010 A1.5, antioxidant 10761.5; Whipping agent: AC19.
Its preparation method is: utilize crushing material equipment, solid substances is ground into <150 order particle; Utilize continous way mixing equipment high-shear decollator that solid substances and liquid material after pulverizing are evenly mixed, mix rear metering pack.
Embodiment 2
Heatproof high molecule is from the proportioning of sealing and component (take mass parts % as standard) 100 thermoplastic elastomers, 75 tackifier, 6 softening agent, 1 antioxidant, whipping agent 4; Take thermoplastic elastomer SIS85, thermoplastic elastomer SEBS15; Tackifier: ester gum 65, polyisobutene 10; Softening agent: naphthenic oil 5.5, dimixo-octyl phthalate (DIOP) 0.5; Antioxidant 1010 0.5, antioxidant 3000.5; Whipping agent: ADC4.
Its preparation method is: utilize crushing material equipment, solid substances is ground into <150 order particle; Utilize continous way mixing equipment planetary-type mixer that solid substances and liquid material after pulverizing are evenly mixed, mix rear metering pack.
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 (5)
1. heatproof high molecule, from a sealing, is characterized in that its composition and proportion by weight:
Thermoplastic elastomer 100;
Tackifier: 75～86.5;
Softening agent: 6～11.7;
Anti-aging agent and/or antioxidant: 1～3;
Whipping agent: 4～19.
2. heatproof high molecule according to claim 1, from sealing, is characterized in that described thermoplastic elastomer, is selected from one or more mixing in thermoplastic elastomer SIS, SBS, SEBS, SEPS;
Described tackifier are selected from one or more mixing of terpine resin, ester gum, polyisobutene;
Described antioxidant is selected from antioxidant 1076,1010 or its to be mixed, described anti-aging agent be selected from anti-aging agent RD, 4010 and 4010A in one or more mixing;
Described softening agent is selected from naphthenic oil, dimixo-octyl phthalate or its mixing;
Described whipping agent is selected from blowing agent AC, ADC or its mixing.
3. manufacture the method for heatproof high molecule as claimed in claim 1 or 2 from sealing, it is characterized in that: utilize crushing material equipment, solid substances is ground into <150 order particle; Utilize continous way mixing equipment that solid substances and liquid material after pulverizing are evenly mixed, mix rear metering pack.
4. heatproof high molecule according to claim 3, from the manufacture method of sealing, is characterized in that described continous way mixing equipment is propeller stirrer, high-shear decollator or planetary-type mixer.
5. heatproof high molecule according to claim 3, from the manufacture method of sealing, is characterized in that described continous way mixing equipment is planetary-type mixer.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310472475.6A CN103849283A (en) | 2013-10-11 | 2013-10-11 | Temperature-resistant macromolecule self-seal rubber and manufacturing method thereof |
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| CN201310472475.6A CN103849283A (en) | 2013-10-11 | 2013-10-11 | Temperature-resistant macromolecule self-seal rubber and manufacturing method thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104231935A (en) * | 2014-09-11 | 2014-12-24 | 洛阳骏腾能源科技有限公司 | Preparation method of polymer self-sealing polymer for car tire |
| CN105349063A (en) * | 2015-12-03 | 2016-02-24 | 杭州汉高新材料科技有限公司 | Automobile hot-melt foaming pressure-sensitive adhesive and preparation method thereof |
| CN106167686A (en) * | 2016-09-05 | 2016-11-30 | 东莞市魔丽身段服装有限公司 | A kind of foaming hot melts and a kind of concealed bra |
| CN106398643A (en) * | 2016-08-31 | 2017-02-15 | 如皋市嘉好热熔胶有限公司 | Adhesive used for express delivery bag seal breaking adhesive tapes |
| CN106589632A (en) * | 2016-12-02 | 2017-04-26 | 新疆天利高新石化股份有限公司 | Mico-crosslinking thermoplastic elastomer sealing material and preparing method thereof |
| CN110283559A (en) * | 2019-07-24 | 2019-09-27 | 辽宁神州风火轮轮胎科技有限公司 | It is a kind of it is anti-tie review one's lessons by oneself to mend a tire upgrade sizing material |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106589632A (en) * | 2016-12-02 | 2017-04-26 | 新疆天利高新石化股份有限公司 | Mico-crosslinking thermoplastic elastomer sealing material and preparing method thereof |
| CN106589632B (en) * | 2016-12-02 | 2018-12-28 | 新疆天利高新石化股份有限公司 | A kind of micro- crosslinked thermoplastic elastomer sealing material and preparation method thereof |
| CN110283559A (en) * | 2019-07-24 | 2019-09-27 | 辽宁神州风火轮轮胎科技有限公司 | It is a kind of it is anti-tie review one's lessons by oneself to mend a tire upgrade sizing material |
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Application publication date: 20140611 |