CN103350621B - A kind of puncture anti-gas-leak safety tread of guaranteeing - Google Patents
A kind of puncture anti-gas-leak safety tread of guaranteeing Download PDFInfo
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- CN103350621B CN103350621B CN201310296715.1A CN201310296715A CN103350621B CN 103350621 B CN103350621 B CN 103350621B CN 201310296715 A CN201310296715 A CN 201310296715A CN 103350621 B CN103350621 B CN 103350621B
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Abstract
The present invention relates to a kind of puncture anti-gas-leak safety tread of guaranteeing, comprise carcass, described safety tread adopts following technique preparation and obtains: (1) prepares liquid adhesive; (2) carry out atomizing spraying: utilize flush coater that adhesive is uniformly sprayed on the process carcass inner surface of cleaning; (3) coating heat drying is shaped; (4) be cycled to repeat step (2), (3) several times until form the tire undercoating that thickness is 0.2～10mm. The present invention not only can effectively reduce the traffic accident being caused by the reason such as blow out, and improves driving safety; Exempt to change tire, exempt from tire patching function but also have, improve driving efficiency; Improve tyre air tightness; Dwindle dynamic balancing deviation, reduce tire running resistance, lower consumption fuel-efficient; Superpower thermal adaptability; Run at high speed carefree; Reduce tire noise in driving process; Alleviate wearing and tearing, extend the characteristics such as Using Life of Tyre.
Description
Technical field
The present invention relates to a kind of tire, especially relate to a kind of puncture anti-gas-leak safety tread of guaranteeing.
Background technology
Along with developing rapidly of auto industry, being gradually improved of traffic route network, to improving the property of motor vehicle tireCan, develop safe, durable, at a high speed at a low price product has become one of important brainstorm project of current research and production department. According to relevantProfessional institution's incomplete statistics, there is potential safety hazard in 95% above automobile tire, and 60% pressure of tire is undesired, more than 37%There is nail at tyre crown position or stabs, and the traffic accident of domestic highway 70% causes by tire hidden danger, and automobile existsThe death by accident of blowing out when 120km/h speed is travelled above high rate reaches 100%. High-speed tire is blown out and furious driving, fatigueDrive, driving when intoxicated becomes the large arch-criminal of vehicle safety accident four. It is startling that traffic accident is made us, and tire has become vapourCar safety first life. To tyre performance analysis, need further to improve every technology, the economic indicator of tire according to now,Emphasis is explosion-proof, the anti-gas-leak problem that solves tire, and the research and development of safety tread more and more cause the attention of manufacturer with production.
Safety tread is called again " zero-pressure pneumatic ", and its English is run-flattire, has meant the tire that can also walk flat,The literal translation of industry custom is " Runflat tire ". Conventional tyre suffers after foreign object puncture, leaks gas very soon before this, and sidewall then occurredStay, tyre bead departs from wheel rim, gently cannot continue to travel, heavy cause vehicle to topple. By comparison, safety tread is being stungAfter bundle, can not leak gas or leak gas and be very slow, can keep the profile that travels, tyre bead be still fixed on wheel rim, thereby ensuresAutomobile can be stablized and travel for a long time or temporarily. Automobile is loaded onto after this tire, and not only security performance improves greatly, and notNeed again carrying about standby tire.
Chinese patent CN102582364A disclose a kind of can improve traffic safety probability add core safety tread. Working asIn the automobiles without inner tubes tire of front use, be close to the real core tire of rubber of wheel rim cover, two sides be designed to 4 equally distributed protrudingGroove, Main Function is that the heat of tire arrives wheel hub by groove part, has solved the problem that continuation is dispelled the heat by wheel hub. Article 4, equalThe high 45mm that is of every groove of tongue of even distribution, flute length is 150mm, and groove width is that the section of the real core tire of rubber is high. The real core of rubberThe wide wheel rim mating with automobile of tire of tire is with wide, and its profile height is 60mm. Although this structure tire can ensure certain safetyPerformance, but its weight obviously increases, manufacturing process is comparatively loaded down with trivial details, and manufacturing cost is higher.
Existing safety tread, although there is technically certain improvement,, from technical performance aspect, mainTo also there is following defect: (1) coating layer thickness uniformity can not ensure, coating limit portion and interior thickness inequality; Existing technique is pastToward adopting centrifugal action that coating is distributed at tire inner surface, with reference to Fig. 1, carcass 1 inner surface of tire is provided withCoating 2, this technique is easy to the phenomenon that causes thick middle both sides thin; Occur that sometimes interior thickness has reached 10～15mm,And thickness of two sides only has the phenomenon of 1～2mm; (2) the resistance to thermal adaptability of coating is limited, and Applicable temperature interval is less, and application is subject toRegional restriction; (3) it is poor that the inhomogeneities of coating has caused the dynamic balance of car body, and noise reduction is poor, and comfortableness is not good; (4)Glue consumption is large, thick coating, poor radiation; (5) tire undercoating tack is poor, and Using Life of Tyre is relatively short, Bu NengshiAnswer high vehicle speeds demand; (6) narrow application range, product specification limited amount, can not meet all types of user demand.
Summary of the invention
The deficiency existing in order to overcome prior art, the present invention relates to that a kind of manufacturing process is simple, undercoating good uniformity,Thin thickness, the lightweight puncture anti-gas-leak safety tread method of guaranteeing.
A kind of puncture anti-gas-leak safety tread of guaranteeing, comprises carcass, and described safety tread adopts following technique preparation and obtains:
(1) prepare liquid adhesive;
(2) carry out atomizing spraying: utilize flush coater that adhesive is uniformly sprayed in the process carcass of cleaning and shownOn face;
(3) coating heat drying is shaped;
(4) be cycled to repeat step (2), (3) several times until form the tire undercoating that thickness is 0.2～10mm.
Preferably, in step (1), described liquid adhesive adopts by the adhesive obtaining after dissolution with solvents adhesiveSolution, in described adhesive solvent, solid content is 7～91%; Described adhesive is following one or more any groupClose: polyacrylic resin, modified polypropene acid resin, polyurethane, modified polyurethane, polyester, modified poly ester, polyamide, modificationPolyamide, PUR, modified hot melt adhesive, fluid sealant, modification fluid sealant; Described solvent adopts and suitable the having of above-mentioned adhesiveMachine solvent.
The present invention adopt solvent can determine according to the physicochemical property of the selected different adhesive kinds of reality, described inSolvent is as gasoline, benzene, toluene, acetone, carrene, chloroform, carbon tetrachloride, ethanol, ethyl acetate, N, N-dimethylAny combination of one or more in formamide etc.
Preferably, in step (1), described liquid adhesive adopts the water base of one of following or more than two kinds any combinationType adhesive: waterborne polyurethane adhesive, water-based modification polyurethane adhesive, water base acrylate resin, water-based modificationAcrylate resin, waterborne epoxy adhesives, water-based modification epoxy adhesive, water base organic silicon adhesive, water-based modificationOrganic silicon adhesive, water base polyvinyl acetate class emulsion glue, water-based modification polyvinyl acetate class emulsion glue.
Preferably, the scope of described undercoating setting be crown all and to extend to tire Article 1 to tire shoulder direction anti-frictionLine. The position of coating generally extends to Article 1 kerbing rib, but also can be evenly distributed in whole carcass.
Preferably, described adhesive is the combination of polyurethane, polyamide and PUR, wherein polyurethane, polyamide and heatThe weight ratio of melten gel is 1:0.8～1.5:0.2～0.8, and one of described solvent employing is following: benzene, toluene, acetone, dichloromethaneAlkane, chloroform, carbon tetrachloride, ethyl acetate, DMF.
Preferably, described adhesive is the combination of polyurethane and polyacrylic resin, described polyurethane and polyacrylic acid treeThe weight ratio of fat is 1:0.4～1.2. Polyurethane has good physical and mechanical properties, excellent cold resistance, elasticity, high glaze,And soft durometer varies with temperature the advantages such as not too large, organic solvent-resistant, still, polyurethane resin water-resistant coating is bad, machineTool intensity is not as good as acrylic resin, and this and polyacrylate have certain complementation in nature, and both are compound, energy gramShortcoming separately of clothes, performance advantage separately, make coating performance be improved significantly.
Preferably, described adhesive is the combination of waterborne polyurethane adhesive and water base acrylate resin, whereinThe weight ratio of waterborne polyurethane adhesive and water base acrylate resin is 1:0.4～0.8.
The composite adhesive undercoating material of the present invention possesses excellent initial bonding strength, holds the characteristic such as viscous force and screen resilience.Suffer that when tread surface certain size is with interior nail or other foreign matter puncture, this adhesive undercoating material can be according to itThe above-mentioned characteristic having, is coated sealing to foreign matter rapidly; After tire foreign bodies removal, this adhesive undercoating material canDamage location is carried out to repair automatically sealing, keep the air-tightness of tire, make tire can be non-maintaining, be excused from a college course benefit, continueContinuous safety traffic.
Preferably, described atomization comprises hydraulic atomizing and binary air atomizing; The shower nozzle that described flush coater adopts is fanOne in shape shower nozzle, Conic nozzle, fluid column stream shower nozzle, atomizer, flat shower nozzle, capacity of sprinkler control is 1～99g/s,The control of shower nozzle operating pressure is 0.2～10Mpa. The shower nozzle that flush coater of the present invention adopts can be selected according to concrete actual conditionsSuitable nozzle type, effective to reach atomizing spraying, the object that coating is evenly distributed.
Preferably, described safety tread adopts following technique preparation and obtains:
(1) mixed glue of the polyurethane, polyamide and the PUR that are 1:0.8:0.5 by weight ratio is dissolved in N, N-diformazanIn base formamide, obtain adhesive solvent; In described adhesive solvent, solid content is 52%;
(2) carry out atomizing spraying: utilize flush coater that adhesive solvent is uniformly sprayed at the carcass through cleaningInner surface; The shower nozzle that described flush coater adopts is Fan spray head, and capacity of sprinkler is 76.3g/s, and shower nozzle operating pressure is 5Mpa;
(3) coating heat drying is shaped;
(4) be cycled to repeat step (2), (3) 200 times until form the tire undercoating that thickness is 3.7mm.
Preferably, described safety tread adopts following technique preparation and obtains:
(1) waterborne polyurethane adhesive that is 1:0.6 by weight ratio and water base acrylate resin are mixed to get liquid stateAdhesive;
(2) carry out atomizing spraying: utilize flush coater that liquid adhesive is uniformly sprayed at the carcass through cleaningInner surface; The shower nozzle that described flush coater adopts is Fan spray head, and capacity of sprinkler is 42.8g/s, and shower nozzle operating pressure is 4Mpa;
(3) coating heat drying is shaped;
(4) be cycled to repeat step (2), (3) 300 times until form the tire undercoating that thickness is 4.5mm.
Adhesive of the present invention, can also appropriate add according to actual needs suitable tackifier, wax class,Antioxidant, plasticizer and filler; Wherein, described tackifier can be selected rosin and derivative thereof, terpene resin, C5OilResin or C9Petropols; Described wax class can be selected microcrystalline wax or synthetic wax; Described antioxidant can be selected 2,6-bis-Tert-butyl group p-cresol or 4,4 '-sulfydryl two (3 methy 6 tert butyl phenol); Described plasticizer can be selected phthalic acidDibutyl ester (DBP) or o-phthalic acid dibutyl ester (DOP); Described filler can select talcum powder, quartz, calcium carbonate, barium monoxide,Asbestos, titanium dioxide, barium sulfate or white carbon.
Tire of the present invention is applied widely, can be used for battery truck, motorcycle, car, gently card or truck; Above-mentioned tireStructure is tubeless structure, and wherein, truck tire can be selected steel wire and meridian line structure tubeless, and tyres for passenger cars can be selectedSemi-steel radial structure tubeless, motorcycle tyre can be selected oblique nylon structure tubeless, and light truck tire can be selected half steel knotStructure tubeless.
The present invention adopts liquid material, atomization process, control spraying flow, by dryness finalization, finally produces and is stungPrick the anti-gas-leak safety tread of guaranteeing, beneficial effect of the present invention is:
(1) improve original tyre lunge-proof, leak resistance, can, in order to avoid tire patching, do not change tire, save time, there is the driving of raisingEfficiency and safety;
(2) application spraying technology, avoids the generation of the thin phenomenon in tire coating thick middle both sides in prior art, has interior paintingLayer good uniformity, thin thickness, lightweight, thermal diffusivity is excellent:
(3) effectively dwindle tire dynamic and balance deviation, there is good noise elimination effect, can alleviate in Vehicle Driving Cycle vibrations and make an uproarSound, thus Vehicle Driving Cycle comfortableness improved;
(4) improve tyre air tightness, reduce resistance to rolling, thereby reduce oil consumption, realize energy-conservation;
(5) undercoating tack is good, and heat endurance is good, and undercoating can slow down tire wear, extends tire and normally uses the longevityLife;
(6) can be applicable to the tire of various brands, specification, model on market, can meet all types of user demand.
Brief description of the drawings
Fig. 1 is the section structure schematic diagram of existing safety tread.
Fig. 2 is section structure schematic diagram of the present invention.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the invention will be further described, but protection scope of the present invention is not limitIn this.
Embodiment 1
With reference to Fig. 2, a kind of puncture anti-gas-leak safety tread of guaranteeing, comprises carcass 3, evenly spray on described carcass 3 inner surfacesIf one deck adhesive undercoating 4, the thickness of described undercoating 4 is 0.5mm; Described adhesive be polyacrylic resin adhesive,The combination of polyurethane adhesive. The present invention is in tire inner wall coated with adhesive undercoating 4 equably, and coating layer thickness is even, tireLimit portion is consistent with interior thickness, positive and negative 0.1mm.
Described puncture anti-gas-leak adopts following technique preparation and obtains:
(1) the polyacrylic resin adhesive that is 1:1.5 by weight ratio, the mixed glue of polyurethane adhesive are dissolved in thirdIn ketone, obtain adhesive solvent; In described adhesive solvent, solid content is 63%;
(2) carry out atomizing spraying: utilize flush coater that adhesive solvent is uniformly sprayed at the carcass through cleaningInner surface; The shower nozzle that described flush coater adopts is Conic nozzle, and capacity of sprinkler is 55.2g/s, and shower nozzle operating pressure is 3Mpa;
(3) coating heat drying is shaped;
(4) be cycled to repeat step (2), (3) 50 times until form the tire undercoating that thickness is 0.5mm.
Polyurethane has good physical and mechanical properties, excellent cold resistance, elasticity, high glaze, and soft durometer is with temperatureThe advantages such as degree changes not too greatly, organic solvent-resistant, still, polyurethane resin water-resistant coating is bad, and mechanical strength is not as good as propyleneAcid resin, this and polyacrylate have certain complementation in nature, if both are compound, must overcome separately lackPoint, advantage separately of performance, make coating performance be improved significantly.
Security performance detects:
Above-mentioned tire is installed on to common sedan wheel hub, in tire, is filled with standard pressure, through hammer into 4 centimetres of length,The steel nail that diameter is 0.5 centimetre behind crown part, random puncture 5 places of tire shoulder portion, travels a week in city respectively, after testing, and notThe gas leak phenomenon of blowing out; Above-mentioned tire is installed on to general car wheel hub, in tire, is filled with standard pressure, through hammering into length 4Centimetre, the steel nail of 0.5 centimetre of diameter is respectively behind crown part, random puncture 5 places of tire shoulder portion, in highway driving 24h, through inspectionSurvey, do not occur the phenomenon of blowing out, leak rate can be ignored.
The undercoating of the present embodiment tire is adhered to stability and detect, result is as shown in table 1, table 2.
Table 1
Table 2
Test condition: 38.4～39.6 DEG C of environment temperatures, show from result shown in table 1, table 2, test completely, tire is completeGood, tyre cavity undercoating, without significant change, illustrates that its undercoating tack is good, is difficult for peeling off with tire.
Embodiment 2
With reference to Fig. 2, a kind of puncture anti-gas-leak safety tread of guaranteeing, comprises carcass 3, evenly spray on described carcass 3 inner surfacesIf one deck adhesive undercoating 4, the thickness of described undercoating 4 is 3.7mm; Described adhesive is polyurethane adhesive, polyamideThe combination of adhesive and hot melt adhesive. The present invention is in tire inner wall coated with adhesive undercoating 4 equably, and coating layer thickness is equalEven, tyre beads portion is consistent with interior thickness, positive and negative 0.1mm.
The described puncture anti-gas-leak safety tread of guaranteeing adopts the preparation of following technique and obtains:
(1) epoxy glue of the polyurethane adhesive that is 1:0.8:0.5 by weight ratio, polyamide adhesive and hot melt adhesiveStick is dissolved in DMF obtaining adhesive solvent; In described adhesive solvent, solid content is 52%;
(2) carry out atomizing spraying: utilize flush coater that adhesive solvent is uniformly sprayed at the carcass through cleaningInner surface; The shower nozzle that described flush coater adopts is Fan spray head, and capacity of sprinkler is 76.3g/s, and shower nozzle operating pressure is 5Mpa;
(3) coating heat drying is shaped;
(4) be cycled to repeat step (2), (3) 200 times until form the tire undercoating that thickness is 3.7mm.
Security performance detects:
Above-mentioned tire is installed on to common sedan wheel hub, in tire, is filled with standard pressure, through hammer into 5 centimetres of length,The steel nail that diameter is 0.5 centimetre behind crown part, random puncture 10 places of tire shoulder portion, travels a week in city respectively, after testing, and notThe gas leak phenomenon of blowing out; Above-mentioned tire is installed on to general car wheel hub, in tire, is filled with standard pressure, through hammering into length 5Centimetre, the steel nail of 0.5 centimetre of diameter is respectively behind crown part, random puncture 10 places of tire shoulder portion, in highway driving 24h, warpDetect, do not occur the phenomenon of blowing out, leak rate can be ignored.
The undercoating of the present embodiment tire is adhered to stability and detect, result is as shown in table 3, table 4.
Table 3
Table 4
Test condition: 38.4～39.6 DEG C of environment temperatures, show from result shown in table 3, table 4, test completely, tire is completeGood, tyre cavity undercoating, without significant change, illustrates that its undercoating tack is good, is difficult for peeling off with tire.
Embodiment 3
With reference to Fig. 2, a kind of puncture anti-gas-leak safety tread of guaranteeing, comprises carcass 3, evenly spray on described carcass 3 inner surfacesIf one deck adhesive undercoating 4, the thickness of described undercoating 4 is 4.5mm; Described adhesive is waterborne polyurethane adhesive and waterThe combination of based polyacrylic acid ester gum stick. The scope that undercoating 4 arranges is that crown all and to tire shoulder direction extends to tire the, a kerbing rib 5. The present invention is in tire inner wall coated with adhesive undercoating 4 equably, and coating layer thickness is even, tyre beads portion with inPortion's consistency of thickness, positive and negative 0.1mm.
The described puncture anti-gas-leak safety tread of guaranteeing adopts the preparation of following technique and obtains:
(1) waterborne polyurethane adhesive that is 1:0.6 by weight ratio and water base acrylate resin are mixed to get liquid stateAdhesive;
(2) carry out atomizing spraying: utilize flush coater that liquid adhesive is uniformly sprayed at the carcass through cleaningInner surface; The shower nozzle that described flush coater adopts is Fan spray head, and capacity of sprinkler is 42.8g/s, and shower nozzle operating pressure is 4Mpa;
(3) coating heat drying is shaped;
(4) be cycled to repeat step (2), (3) 300 times until form the tire undercoating that thickness is 4.5mm.
Security performance detects:
Above-mentioned tire is installed on to common sedan wheel hub, in tire, is filled with standard pressure, through hammer into 5 centimetres of length,The steel nail that diameter is 0.5 centimetre behind crown part, random puncture 10 places of tire shoulder portion, travels a week in city respectively, after testing, and notThe gas leak phenomenon of blowing out; Above-mentioned tire is installed on to general car wheel hub, in tire, is filled with standard pressure, through hammering into length 5Centimetre, the steel nail of 0.5 centimetre of diameter is respectively behind crown part, random puncture 10 places of tire shoulder portion, in highway driving 24h, warpDetect, do not occur the phenomenon of blowing out, leak rate can be ignored.
The undercoating of the present embodiment tire is adhered to stability and detect, result is as shown in table 5, table 6.
Table 5
Table 6
Test condition: 38.4～39.6 DEG C of environment temperatures, show from result shown in table 5, table 6, test completely, tire is completeGood, tyre cavity undercoating, without significant change, illustrates that its undercoating tack is good, is difficult for peeling off with tire.
Embodiment 4
With reference to Fig. 2, a kind of puncture anti-gas-leak safety tread of guaranteeing, comprises carcass 3, evenly spray on described carcass 3 inner surfacesIf one deck adhesive undercoating 4, the thickness of described undercoating 4 is 9.5mm; Described adhesive is polyurethane sealant. Undercoating 4The scope arranging be crown all and extend to tire Article 1 kerbing rib 5 to tire shoulder direction. The present invention is even at tire inner wallGround coated with adhesive undercoating 4, coating layer thickness is even, and tyre beads portion is consistent with interior thickness, positive and negative 0.1mm.
The described puncture anti-gas-leak safety tread of guaranteeing adopts the preparation of following technique and obtains:
(1) polyurethane sealant is dissolved in ethanol obtaining to adhesive solvent; In described adhesive solvent, solid content is 65%;
(2) carry out atomizing spraying: utilize flush coater that polyurethane adhesive solution is uniformly sprayed in process cleaningCarcass inner surface; The shower nozzle that described flush coater adopts is Fan spray head, and capacity of sprinkler is 62.8g/s, and shower nozzle operating pressure is7Mpa；
(3) coating heat drying is shaped;
(4) be cycled to repeat step (2), (3) 750 times until form the tire undercoating that thickness is 9.5mm.
Above-mentioned tire is installed on to common sedan wheel hub, in tire, is filled with standard pressure, through hammer into 6 centimetres of length,The steel nail that diameter is 0.5 centimetre behind crown part, random puncture 15 places of tire shoulder portion, travels a week in city respectively, after testing, and notThe gas leak phenomenon of blowing out; Above-mentioned tire is installed on to general car wheel hub, in tire, is filled with standard pressure, through hammering into length 6Centimetre, the steel nail of 0.5 centimetre of diameter is respectively behind crown part, random puncture 15 places of tire shoulder portion, in highway driving 24h, warpDetect, do not occur the phenomenon of blowing out, leak rate can be ignored.
The undercoating of the present embodiment tire is adhered to stability and detect, result is as shown in table 7, table 8.
Table 7
Table 8
Test condition: 38.4～39.6 DEG C of environment temperatures, show from result shown in table 7, table 8, test completely, tire is completeGood, tyre cavity undercoating, without significant change, illustrates that its undercoating tack is good, is difficult for peeling off with tire.
Embodiment 5
With reference to Fig. 2, a kind of puncture anti-gas-leak safety tread of guaranteeing, comprises carcass 3, evenly spray on described carcass 3 inner surfacesIf one deck adhesive undercoating 4, the thickness of described undercoating 4 is 6.8mm; Described adhesive is polyvinyl acetate class emulsion glue.The scope that undercoating 4 arranges be crown all and extend to tire Article 1 kerbing rib 5 to tire shoulder direction. The present invention is in tireWall is coated with adhesive undercoating 4 equably, and coating layer thickness is even, and tyre beads portion is consistent with interior thickness, positive and negative 0.1mm.
The described puncture anti-gas-leak safety tread of guaranteeing adopts the preparation of following technique and obtains:
(1) using polyvinyl acetate class emulsion glue as liquid adhesive;
(2) carry out atomizing spraying: utilize flush coater that liquid adhesive is uniformly sprayed at the carcass through cleaningInner surface; The shower nozzle that described flush coater adopts is Fan spray head, and capacity of sprinkler is 48.7g/s, and shower nozzle operating pressure is 9Mpa;
(3) coating heat drying is shaped;
(4) be cycled to repeat step (2), (3) 420 times until form the tire undercoating that thickness is 6.8mm.
Security performance detects:
Above-mentioned tire is installed on to common sedan wheel hub, in tire, is filled with standard pressure, through hammer into 5 centimetres of length,The steel nail that diameter is 0.3 centimetre behind crown part, random puncture 20 places of tire shoulder portion, travels a week in city respectively, after testing, and notThe gas leak phenomenon of blowing out; Above-mentioned tire is installed on to general car wheel hub, in tire, is filled with standard pressure, through hammering into length 5Centimetre, the steel nail of 0.3 centimetre of diameter is respectively behind crown part, random puncture 20 places of tire shoulder portion, in highway driving 24h, warpDetect, do not occur the phenomenon of blowing out, leak rate can be ignored.
The undercoating of the present embodiment tire is adhered to stability and detect, result is as shown in table 9, table 10.
Table 9
Table 10
Test condition: 38.4～39.6 DEG C of environment temperatures, show from result shown in table 9, table 10, test completely, tire is completeGood, tyre cavity undercoating, without significant change, illustrates that its undercoating tack is good, is difficult for peeling off with tire.
Embodiment 6
With reference to Fig. 2, a kind of puncture anti-gas-leak safety tread of guaranteeing, comprises carcass 3, evenly spray on described carcass 3 inner surfacesIf one deck adhesive undercoating 4, the thickness of described undercoating 4 is 2.6mm; Described adhesive is the combination of polyamide and polyester.The scope that described undercoating 4 arranges be crown all and extend to tire Article 1 kerbing rib 5 to tire shoulder direction.
The present invention is in tire inner wall coated with adhesive undercoating 4 equably, and coating layer thickness is even, and tyre beads portion and middle part are thickDegree is consistent, positive and negative 0.1mm.
The described puncture anti-gas-leak safety tread of guaranteeing adopts the preparation of following technique and obtains:
(1) polyamide that is 1:1.8 by weight ratio and the mixed glue of polyester are dissolved in benzene-trichlorine that volume ratio is 1:1In methane solution, obtain mixed glue solution; In described mixed glue solution, solid content is 56%;
(2) carry out atomizing spraying: utilize flush coater that mixed solution is uniformly sprayed in the process carcass of cleaningSurface; The shower nozzle that described flush coater adopts is Fan spray head, and capacity of sprinkler is 56.3g/s, and shower nozzle operating pressure is 0.9Mpa;
(3) coating heat drying is shaped;
(4) be cycled to repeat step (2), (3) 160 times until form the tire undercoating that thickness is 2.6mm.
Security performance detects:
Above-mentioned tire is installed on to common sedan wheel hub, in tire, is filled with standard pressure, through hammer into 4 centimetres of length,The steel nail that diameter is 0.4 centimetre behind crown part, random puncture 10 places of tire shoulder portion, travels a week in city respectively, after testing, and notThe gas leak phenomenon of blowing out; Above-mentioned tire is installed on to general car wheel hub, in tire, is filled with standard pressure, through hammering into length 4Centimetre, the steel nail of 0.4 centimetre of diameter is respectively behind crown part, random puncture 10 places of tire shoulder portion, in highway driving 24h, warpDetect, do not occur the phenomenon of blowing out, leak rate can be ignored.
The undercoating of the present embodiment tire is adhered to stability and detect, result is as shown in table 11, table 12.
Table 11
Table 12
Test condition: 38.4～39.6 DEG C of environment temperatures, show from result shown in table 11, table 12, test completely, tire is completeGood, tyre cavity undercoating, without significant change, illustrates that its undercoating tack is good, is difficult for peeling off with tire.
Embodiment 7
With reference to Fig. 2, a kind of puncture anti-gas-leak safety tread of guaranteeing, comprises carcass 3, evenly spray on described carcass 3 inner surfacesIf one deck adhesive undercoating 4, the thickness of described undercoating 4 is 0.2mm; Described adhesive is polyacrylic acid adhesive, poly-ammoniaThe combination of ester gum stick. The present invention is in tire inner wall coated with adhesive undercoating 4 equably, and coating layer thickness is even, tyre beads portionConsistent with interior thickness, positive and negative 0.1mm.
The described puncture anti-gas-leak safety tread of guaranteeing adopts the preparation of following technique and obtains:
(1) the polyacrylic acid adhesive that is 1:1.2 by weight ratio, the mixed glue of polyurethane adhesive are dissolved in acetoneObtain adhesive solvent; In described adhesive solvent, solid content is 73%;
(2) carry out atomizing spraying: utilize flush coater that adhesive solvent is uniformly sprayed at the carcass through cleaningInner surface; The shower nozzle that described flush coater adopts is Conic nozzle, and capacity of sprinkler is 75.2g/s, and shower nozzle operating pressure is 3Mpa;
(3) coating heat drying is shaped;
(4) be cycled to repeat step (2), (3) 20 times until form the tire undercoating that thickness is 0.2mm.
Security performance detects:
Above-mentioned tire is installed on to common sedan wheel hub, in tire, is filled with standard pressure, through hammer into 4 centimetres of length,The steel nail that diameter is 0.2 centimetre behind crown part, random puncture 10 places of tire shoulder portion, travels a week in city respectively, after testing, and notThe gas leak phenomenon of blowing out; Above-mentioned tire is installed on to general car wheel hub, in tire, is filled with standard pressure, through hammering into length 4Centimetre, the steel nail of 0.2 centimetre of diameter is respectively behind crown part, random puncture 10 places of tire shoulder portion, in highway driving 24h, warpDetect, do not occur the phenomenon of blowing out, leak rate can be ignored.
The undercoating of the present embodiment tire is adhered to stability and detect, result is as shown in table 13, table 14.
Table 13
Table 14
Test condition: 38.4～39.6 DEG C of environment temperatures, show from result shown in table 13, table 14, test completely, tire is completeGood, tyre cavity undercoating, without significant change, illustrates that its undercoating tack is good, is difficult for peeling off with tire.
Embodiment 8
With reference to Fig. 2, a kind of puncture anti-gas-leak safety tread of guaranteeing, comprises carcass 3, evenly spray on described carcass 3 inner surfacesIf one deck adhesive undercoating 4, the thickness of described undercoating 4 is 8.2mm; Described adhesive is waterborne epoxy adhesives, water baseThe combination of organic silicon adhesive. The scope that undercoating 4 arranges be crown all and to extend to tire Article 1 to tire shoulder direction anti-Wipe line 5. The present invention is in tire inner wall coated with adhesive undercoating 4 equably, and coating layer thickness is even, tyre beads portion and interior thicknessUnanimously, positive and negative 0.1mm.
The described puncture anti-gas-leak safety tread of guaranteeing adopts the preparation of following technique and obtains:
(1) waterborne epoxy adhesives that is 1:0.4 by weight ratio, water base organic silicon adhesive are mixed to get liquid adhesive;
(2) carry out atomizing spraying: utilize flush coater that liquid adhesive is uniformly sprayed at the carcass through cleaningInner surface; The shower nozzle that described flush coater adopts is Fan spray head, and capacity of sprinkler is 48.2g/s, and shower nozzle operating pressure is 10Mpa;
(3) coating heat drying is shaped;
(4) be cycled to repeat step (2), (3) 600 times until form the tire undercoating that thickness is 8.2mm.
Security performance detects:
Above-mentioned tire is installed on to common sedan wheel hub, in tire, is filled with standard pressure, through hammer into 5 centimetres of length,The steel nail that diameter is 0.5 centimetre behind crown part, random puncture 10 places of tire shoulder portion, travels a week in city respectively, after testing, and notThe gas leak phenomenon of blowing out; Above-mentioned tire is installed on to general car wheel hub, in tire, is filled with standard pressure, through hammering into length 5Centimetre, the steel nail of 0.5 centimetre of diameter is respectively behind crown part, random puncture 10 places of tire shoulder portion, in highway driving 24h, warpDetect, do not occur the phenomenon of blowing out, leak rate can be ignored.
The undercoating of the present embodiment tire is adhered to stability and detect, result is as shown in table 15, table 16.
Table 15
Table 16
Test condition: 38.4～39.6 DEG C of environment temperatures, show from result shown in table 15, table 16, test completely, tire is completeGood, tyre cavity undercoating, without significant change, illustrates that its undercoating tack is good, is difficult for peeling off with tire.
Embodiment 9
With reference to Fig. 2, a kind of puncture anti-gas-leak safety tread of guaranteeing, comprises carcass 3, evenly spray on described carcass 3 inner surfacesIf one deck adhesive undercoating 4, the thickness of described undercoating 4 is 1.7mm; Described adhesive is that acrylic acid modified polyurethane is gluingThe combination of agent. The present invention is in tire inner wall coated with adhesive undercoating 4 equably, and coating layer thickness is even, tyre beads portion and middle partConsistency of thickness, positive and negative 0.1mm.
The described puncture anti-gas-leak safety tread of guaranteeing adopts the preparation of following technique and obtains:
(1) acrylic acid modified polyurethane adhesive is dissolved in oxolane obtaining to adhesive solvent; Described adhesive solventMiddle solid content is 67%;
(2) carry out atomizing spraying: utilize flush coater that adhesive solvent is uniformly sprayed at the carcass through cleaningInner surface; The shower nozzle that described flush coater adopts is Conic nozzle, and capacity of sprinkler is 75.2g/s, and shower nozzle operating pressure is 6Mpa;
(3) coating heat drying is shaped;
(4) be cycled to repeat step (2), (3) 100 times until form the tire undercoating that thickness is 1.7mm.
Tire safe capability detects:
Above-mentioned tire is installed on to common sedan wheel hub, in tire, is filled with standard pressure, through hammer into 5 centimetres of length,The steel nail that diameter is 0.5 centimetre behind crown part, random puncture 5 places of tire shoulder portion, travels a week in city respectively, after testing, and notThe gas leak phenomenon of blowing out; Above-mentioned tire is installed on to general car wheel hub, in tire, is filled with standard pressure, through hammering into length 5Centimetre, the steel nail of 0.5 centimetre of diameter is respectively behind crown part, random puncture 5 places of tire shoulder portion, in highway driving 24h, through inspectionSurvey, do not occur the phenomenon of blowing out, leak rate can be ignored.
The undercoating of the present embodiment tire is adhered to stability and detect, result is as shown in table 17, table 18.
Table 17
Table 18
Test condition: 38.4～39.6 DEG C of environment temperatures, show from result shown in table 17, table 18, test completely, tire is completeGood, tyre cavity undercoating, without significant change, illustrates that its undercoating tack is good, is difficult for peeling off with tire.
The resistance to bundle of the present invention, anti-gas-leak, after wheel crown part, shoulder suffer that diameter≤5mm foreign matter puncture is worn, undercoating canRealize automatic repair function, non-maintaining after tire foreign bodies removal, be excused from a college course benefit, can continue safety traffic.
The present invention utilizes the tack of undercoating material and holds the feature of viscosity, still can keep wheel after having increased tyre punctureThe bubble-tight function of tire. In the time that sharp objects penetrates tire, adhesive undercoating 4 can tightly wrap sharp object, thereby playsAnti-gas-leak effect; In the time that sharp object is extracted, adhesive undercoating 4 cut places meeting automatic neckings, rely on viscosity to make cut place gluingAgent undercoating 4 is bonding. Can effectively play anti-puncture, anti-gas-leak effect.
The present invention not only can effectively reduce the traffic accident being caused by the reason such as blow out, and improves driving safety; AndAlso have and exempt to change tire, exempt from tire patching function, improve driving efficiency; Improve tyre air tightness; Dwindle dynamic balancing deviation, reduce tire capableSail resistance, lower consumption fuel-efficient; Superpower thermal adaptability; Run at high speed carefree; Reduce tire noise in driving process; Alleviate wearing and tearing,Extend the characteristics such as Using Life of Tyre.
Claims (9)
1. the puncture anti-gas-leak safety tread of guaranteeing, comprises carcass, it is characterized in that: described safety tread adopts following techniquePrepare and obtain:
(1) prepare liquid adhesive;
(2) carry out atomizing spraying: utilize flush coater that adhesive is uniformly sprayed on the process carcass inner surface of cleaning;
(3) coating heat drying is shaped;
(4) be cycled to repeat step (2), (3) several times until form the tire undercoating that thickness is 0.2～10mm;
In step (1), described liquid adhesive adopts by the adhesive solvent obtaining after dissolution with solvents adhesive, described glueIn stick solution, solid content is 7～91%; Described adhesive is following one or more any combination: polyacrylic acid treeFat, modified polypropene acid resin, polyurethane, modified polyurethane, polyester, modified poly ester, polyamide, modified polyamide, PUR,Modified hot melt adhesive, fluid sealant, modification fluid sealant; Described solvent adopts the organic solvent suitable with above-mentioned adhesive.
2. the puncture anti-gas-leak according to claim 1 safety tread of guaranteeing, is characterized in that: in step (1), describedLiquid adhesive can also adopt water-based adhesive one of following or more than two kinds any combination: water-based polyurethane is gluingAgent, water-based modification polyurethane adhesive, water base acrylate resin, water-based modification acrylate resin, water base ringOxygen adhesive, water-based modification epoxy adhesive, water base organic silicon adhesive, water-based modification organic silicon adhesive, water base poly-acetic acidVinyl emulsion glue, water-based modification polyvinyl acetate class emulsion glue.
3. the puncture anti-gas-leak according to claim 1 safety tread of guaranteeing, is characterized in that: described undercoating arrangesScope be crown all and extend to tire Article 1 kerbing rib to tire shoulder direction.
4. the puncture anti-gas-leak according to claim 1 safety tread of guaranteeing, is characterized in that: described adhesive is poly-ammoniaThe combination of ester, polyamide and PUR, wherein the weight ratio of polyurethane, polyamide and PUR be 1:0.8～1.5:0.2～0.8, it is one of following that described solvent adopts: benzene, toluene, acetone, carrene, chloroform, carbon tetrachloride, ethyl acetate,DMF.
5. the puncture anti-gas-leak according to claim 1 safety tread of guaranteeing, is characterized in that: described adhesive is polyurethaneWith the combination of polyacrylic resin, the weight ratio of described polyurethane and polyacrylic resin is 1:0.4～1.2.
6. the puncture anti-gas-leak according to claim 2 safety tread of guaranteeing, is characterized in that: described adhesive is water base poly-The combination of ammonia ester gum stick and water base acrylate resin, wherein waterborne polyurethane adhesive and water base polyacrylic acid ester gumThe weight ratio of stick is 1:0.4～0.8.
7. the puncture anti-gas-leak according to claim 1 safety tread of guaranteeing, is characterized in that: described atomization comprises liquidPress atomization and binary air atomizing; The shower nozzle that described flush coater adopts is Fan spray head, Conic nozzle, fluid column stream shower nozzle, atomizationOne in shower nozzle, flat shower nozzle, capacity of sprinkler control is 1～99g/s, the control of shower nozzle operating pressure is 0.2～10Mpa.
8. the puncture anti-gas-leak according to claim 1 safety tread of guaranteeing, is characterized in that: under described safety tread adoptsState technique preparation and obtain:
(1) mixed glue of the polyurethane, polyamide and the PUR that are 1:0.8:0.5 by weight ratio is dissolved in N, N-dimethyl methylIn acid amides, obtain adhesive solvent; In described adhesive solvent, solid content is 52%;
(2) carry out atomizing spraying: utilize flush coater that adhesive solvent is uniformly sprayed in the process carcass of cleaning and shownFace; The shower nozzle that described flush coater adopts is Fan spray head, and capacity of sprinkler is 76.3g/s, and shower nozzle operating pressure is 5Mpa;
(3) coating heat drying is shaped;
(4) be cycled to repeat step (2), (3) 200 times until form the tire undercoating that thickness is 3.7mm.
9. the puncture anti-gas-leak according to claim 2 safety tread of guaranteeing, is characterized in that: under described safety tread adoptsState technique preparation and obtain:
(1) waterborne polyurethane adhesive that is 1:0.6 by weight ratio and water base acrylate resin are mixed to get liquid gluingAgent;
(2) carry out atomizing spraying: utilize flush coater that liquid adhesive is uniformly sprayed in the process carcass of cleaning and shownFace; The shower nozzle that described flush coater adopts is Fan spray head, and capacity of sprinkler is 42.8g/s, and shower nozzle operating pressure is 4Mpa;
(3) coating heat drying is shaped;
(4) be cycled to repeat step (2), (3) 300 times until form the tire undercoating that thickness is 4.5mm.
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20180290407A1 (en) * | 2015-05-15 | 2018-10-11 | Bridgestone Corporation | Tyre sealant layer |
| CN105219067A (en) * | 2015-10-26 | 2016-01-06 | 青岛喜乐途轮胎科技有限公司 | A kind of novel tire leakproof selfreparing macromolecular material |
| CN108973537B (en) * | 2018-08-06 | 2020-12-01 | 上海为彪汽配制造有限公司 | Tire wear detection device and tire wear detection method |
| CN109187537A (en) * | 2018-08-17 | 2019-01-11 | 新华三技术有限公司 | The opening method and failure analysis method of component sealing lysate and component |
| CN112208125A (en) * | 2020-09-29 | 2021-01-12 | 南通骏标自密封安全轮胎科技有限公司 | Processing technology of puncture-proof air-leakage-proof self-sealing rubber layer tire |
| CN113185934B (en) * | 2021-05-10 | 2023-03-17 | 四川远星橡胶有限责任公司 | Self-repairing adhesive composition and preparation method and use method thereof |
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| US5295525A (en) * | 1992-06-22 | 1994-03-22 | Michelin Recherche Et Technique S.A. | Puncture sealant formulation |
| CN1569501A (en) * | 2003-07-21 | 2005-01-26 | 萧宗吉 | Tyre self-repairing method using glue stock and product thereof |
| EP2335913A1 (en) * | 2009-12-18 | 2011-06-22 | The Goodyear Tire & Rubber Company | Pneumatic tire having a built-in seamless polyurethane sealant layer and preparation thereof |
| CN102189898A (en) * | 2010-03-18 | 2011-09-21 | 固特异轮胎和橡胶公司 | Pneumatic tire with built-in sealant layer composite |
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| JPS5284605A (en) * | 1975-12-29 | 1977-07-14 | Bridgestone Corp | Method of forming puncture prevent layer in pneumatic tire |
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| US4068027A (en) * | 1976-01-07 | 1978-01-10 | Rocket Research Corporation | Sealant application method |
| US5295525A (en) * | 1992-06-22 | 1994-03-22 | Michelin Recherche Et Technique S.A. | Puncture sealant formulation |
| CN1569501A (en) * | 2003-07-21 | 2005-01-26 | 萧宗吉 | Tyre self-repairing method using glue stock and product thereof |
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