CN103350621A - Puncture preventing and air leakage preventing run-flat tire - Google Patents

Puncture preventing and air leakage preventing run-flat tire Download PDF

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Publication number
CN103350621A
CN103350621A CN2013102967151A CN201310296715A CN103350621A CN 103350621 A CN103350621 A CN 103350621A CN 2013102967151 A CN2013102967151 A CN 2013102967151A CN 201310296715 A CN201310296715 A CN 201310296715A CN 103350621 A CN103350621 A CN 103350621A
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tire
adhesive
gas
puncture
polyurethane
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CN103350621B (en
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沈仁元
王宏海
沈乐恩
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Hangzhou Green Technology Co., Ltd.
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Hangzhou Novoland Imp & Exp Co Ltd
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Abstract

The invention relates to a puncture preventing and air leakage preventing run-flat tire which comprises a tire casing, wherein the run-flat tire is prepared by adopting the following process: (1), preparing liquid adhesive; (2), carrying out atomizing spraying; using a spraying machine to evenly spray the adhesive on the inner surface of the tire casing treated through cleaning; (3), heating, drying and shaping the coating;(4), repeating the steps (2) and (3) in a circulating manner for times until a tire internal coating with the thickness of 0.2 to 10 mm is formed. The puncture preventing and air leakage preventing run-flat tire provided by the invention is characterized in that traffic accidents caused by tire burst and the like can be effectively reduced, and the driving safety is improved; the functions of tire replacement free and tire repair free are achieved, and the driving efficiency is improved; the airtightness of the tire is improved; dynamic balance deviation is reduced, the running resistance of the tire is reduced, and consumption reduction and oil saving can be achieved; the temperature adaptability is superstrong; the high speed carefree driving is achieved; tire noise is reduced during the driving; abrasion is alleviated, and the service life of the tire is prolonged.

Description

A kind of puncture anti-gas-leak safety tyre of guaranteeing
Technical field
The present invention relates to a kind of tire, especially relate to a kind of puncture anti-gas-leak safety tyre of guaranteeing.
Background technology
Along with developing rapidly of auto-industry, being gradually improved of traffic route network, to improving the performance of motor vehicle tire, develop safe, durable, the low price product has become one of important brainstorm project of current research and production department at a high speed.According to the incomplete statistics of relevant professional institution, there is potential safety hazard in 95% above motor tire, 60% pressure of tire mal, there is nail at 37% above tyre crown position or stabs, the traffic accident of domestic express highway 70% is caused that by tire hidden danger the death by accident high rate of blowing out when automobile travels reaches 100% more than 120km/h speed.High-speed tire is blown out has become vehicle safety accident four large arch-criminals with furious driving, fatigue driving, drunken driving.It is startling that traffic accident is made us, and tire has become the automotive safety Dai-ichi Mutual Life Insurance.According to now to the tyre performance analysis, need further to improve every technology, the economy index of tire, emphasis is explosion-proof, the anti-gas-leak problem that solves tire, the research and development of safety tyre more and more cause the attention of manufacturer with producing.
Safety tyre is called again " zero pressure type ", and its English is run-flat tire, has meant the tire that can also walk flat, and the literal translation of industry custom is " Runflat tire ".After conventional tyre suffered the foreign object puncture, the sidewall then occured and stays in before this very fast gas leakage, and tyre bead breaks away from wheel rim, gently then can't continue to travel, and is heavy then cause vehicle to topple.By comparison, safety tyre is after suffering puncture, and it is very slow can not leak gas or leak gas, and can keep the profile that travels, and tyre bead still is fixed on the wheel rim, thereby the assurance automobile can be for a long time or temporarily stablized and travel.After automobile was loaded onto this tire, not only safety performance improved greatly, and no longer needed the carrying about standby tire.
Chinese patent CN102582364A disclose a kind of can improve the traffic safety probability add the core safety tyre.In the automobiles without inner tubes tire of current use, be close to the real core tire of rubber of wheel rim cover, two sides are designed to 4 well-distributed tongues, and Main Function is that the heat of tire arrives wheel hub by groove part, has solved the problem that continues by the wheel hub heat radiation.Article 4, every groove height of well-distributed tongue is 45mm, and flute length is 150mm, and groove width is that the section of the real core tire of rubber is high.The wide wheel rim that mates with automobile of the tire of the real core tire of rubber is with wide, and its section height is 60mm.Although this structure tire can guarantee certain safety performance, its weight obviously increases, and Fabrication procedure is comparatively loaded down with trivial details, and manufacturing cost is higher.
Existing safety tyre, although certain improvement has been arranged technically,, on the technical performance aspect, mainly also have following defective: (1) coat thickness homogeneity can not guarantee that coating limit section and interior thickness are uneven; Existing technique often adopts centrifugal action that coating is distributed at tire inner surface, with reference to Fig. 1, carcass 1 inside face of tire is provided with coating 2, and this technique is easy to the phenomenon that causes the thick middle both sides thin; Interior thickness occurs sometimes and reached 10~15mm, and thickness of two sides only has the phenomenon of 1~2 mm; (2) the heatproof degree comformability of coating is limited, and the Applicable temperature interval is less, uses to be subjected to regional restriction; (3) it is relatively poor that the irregularity of coating has caused the dynamic balance of car body, and noise reduction is poor, and traveling comfort is not good; (4) glue consumption is large, thick coating, poor radiation; (5) tire internal coating tack is relatively poor, and Using Life of Tyre is relatively short, can not adapt to the high vehicle speeds demand; (6) narrow application range, the product specification limited amount can not satisfy all types of user demand.
Summary of the invention
The deficiency that exists in order to overcome prior art the present invention relates to that a kind of Fabrication procedure is simple, internal coating good uniformity, thin thickness, lightweight puncture anti-gas-leak are guaranteed the safety tyre method.
A kind of puncture anti-gas-leak safety tyre of guaranteeing comprises carcass, and described safety tyre adopts following technique preparation and gets:
(1) prepares liquid adhesive;
(2) carry out atomizing spraying: utilize flush coater that adhesion agent is uniformly sprayed on the process carcass inside face of clean;
(3) the coating heat drying is finalized the design;
(4) be cycled to repeat step (2), (3) several times until formation thickness is the tire internal coating of 0.2~10mm.
Preferably, in the step (1), described liquid adhesive adopts the adhesive solvent by obtaining behind the dissolution with solvents adhesion agent, and solid content is 7~91% in the described adhesive solvent; Described adhesion agent is following one or more combination in any: polyacrylic resin, modified polypropene acid resin, polyurethane, modified polyurethane, polyester, modified poly ester, polyamide, modified polyamide, hot melt adhesive, modified hot melt adhesive, sealant, modification sealant; Described solvent adopts the organic solvent suitable with above-mentioned adhesion agent.
The solvent that the present invention adopts can be determined according to the physicochemical property of the selected different adhesion agent kinds of reality, described solvent is such as the combination in any of one or more in gasoline, benzene, toluene, acetone, methylene chloride, methenyl choloride, carbon tetrachloride, ethanol, ethyl acetate, the DMF etc.
Preferably, in the step (1), described liquid adhesive adopts water-based adhesive one of following or combination in any more than two kinds: waterborne polyurethane adhesive, water-based modification polyurethane adhesive, water base acrylate resin, water-based modification acrylate resin, waterborne epoxy adhesives, water-based modification epoxy adhesive, water base organic silicon adhesive, water-based modification organic silicon adhesive, water base polyvinyl acetate class emulsion glue, water-based modification polyvinyl acetate class emulsion glue.
Preferably, the scope of described internal coating setting is that whole the reaching of crown extends to tire article one kerbing rib to the tire shoulder direction.The position of coating generally extends to article one kerbing rib, but also can be evenly distributed in the whole carcass.
Preferably, described adhesion agent is the combination of polyurethane, polyamide and hot melt adhesive, wherein the weight ratio of polyurethane, polyamide and hot melt adhesive is 1:0.8~1.5:0.2~0.8, one of described solvent employing is following: benzene, toluene, acetone, methylene chloride, methenyl choloride, carbon tetrachloride, ethyl acetate, DMF.
Preferably, described adhesion agent is the combination of polyurethane and polyacrylic resin, and the weight ratio of described polyurethane and polyacrylic resin is 1:0.4~1.2.Polyurethane has good physical and mechanical properties, excellent resistance to cold, elasticity, high glaze, and the advantages such as soft durometer varies with temperature not too greatly, organic solvent-resistant, still, the urethane resin water-resistant coating is bad, mechanical strength is not as good as acrylic resin, this and polyacrylates have certain complementation in nature, and both are compound, can overcome shortcoming separately, separately advantage of performance, make coating performance be improved significantly.
Preferably, described adhesion agent is the combination of waterborne polyurethane adhesive and water base acrylate resin, and wherein the weight ratio of waterborne polyurethane adhesive and water base acrylate resin is 1:0.4~0.8.
The composite adhesion agent internal coating material of the present invention possesses excellent initial bonding strength, holds the characteristics such as viscous force and screen resilience.When tread surface is suffered certain size with interior nail or other foreign matter puncture, this adhesion agent internal coating material can according to its above-mentioned characteristic that has, coat sealing to foreign matter rapidly; Behind the tire foreign bodies removal, this adhesion agent internal coating material can be repaired sealing automatically to damage location, keeps the air-tightness of tire, make tire can be non-maintaining, be excused from a college course benefit, continue safety traffic.
Preferably, described atomizing comprises hydraulic atomizing and binary air atomizing; The shower nozzle that described flush coater adopts is a kind of in Fan spray head, Conic nozzle, fluid column stream shower nozzle, atomizer, the flat shower nozzle, and capacity of sprinkler is controlled to be 1~99g/s, and the shower nozzle operating pressure is controlled to be 0.2~10Mpa.The shower nozzle that flush coater of the present invention adopts can be selected suitable nozzle type according to concrete actual conditions, and is effective to reach atomizing spraying, the purpose that coating is evenly distributed.
Preferably, described safety tyre adopts following technique preparation and gets:
(1) be that the mixed glue of polyurethane, polyamide and the hot melt adhesive of 1:0.8:0.5 is dissolved in the DMF getting adhesive solvent with weight ratio; Solid content is 52% in the described adhesive solvent;
(2) carry out atomizing spraying: utilize flush coater that adhesive solvent is uniformly sprayed at the carcass inside face through clean; The shower nozzle that described flush coater adopts is Fan spray head, and capacity of sprinkler is 76.3g/s, and the shower nozzle operating pressure is 5Mpa;
(3) the coating heat drying is finalized the design;
(4) be cycled to repeat step (2), (3) 200 times until to form thickness be the tire internal coating of 3.7mm.
Preferably, described safety tyre adopts following technique preparation and gets:
(1) be that waterborne polyurethane adhesive and the water base acrylate resin of 1:0.6 is mixed to get liquid adhesive with weight ratio;
(2) carry out atomizing spraying: utilize flush coater that liquid adhesive is uniformly sprayed at the carcass inside face through clean; The shower nozzle that described flush coater adopts is Fan spray head, and capacity of sprinkler is 42.8g/s, and the shower nozzle operating pressure is 4Mpa;
(3) the coating heat drying is finalized the design;
(4) be cycled to repeat step (2), (3) 300 times until to form thickness be the tire internal coating of 4.5mm.
Adhesion agent of the present invention can also add suitable tackifier, wax class, antioxidant, plasticizer and filler according to actual needs in right amount; Wherein, described tackifier can be selected rosin and derivant thereof, terpene resin, C 5Petroleum resin or C 9Petroleum resin; Described wax class can be selected microcrystalline wax or synthetic wax; Described antioxidant can be selected 2,6-toluene di-tert-butyl phenol or 4,4 '-sulfydryl two (3 methy 6 tert butyl phenol); Described plasticizer can be selected dibutyl phthalate (DBP) or o-phthalic acid dibutyl ester (DOP); Described filler can be selected french talc, quartz, calcium carbonate, barium oxider, asbestos, titanium dioxide, barium sulfate or white carbon.
Tire of the present invention is applied widely, can be used for storage battery car, motor bike, car, gently card or truck; Above-mentioned tire construction is the inner tube free structure, wherein, the truck tire can be selected the steel wire and meridian line structure inner tube free, and passenger car tire can be selected semi-steel radial structure inner tube free, motor cycle tire can be selected oblique nylon structure inner tube free, and light truck tire can be selected half steel structure inner tube free.
The present invention adopts liquid material, atomization process, control spraying flow, by dryness finalization, produces at last and obtains the puncture anti-gas-leak safety tyre of guaranteeing, and beneficial effect of the present invention is:
(1) improves original tyre lunge-proof, leak resistance, can save time in order to avoid tire patching, do not change tire, have the driving of raising efficient and safety;
(2) use spraying technology, avoid the generation of the thin phenomenon in tire coating thick middle both sides in the prior art, have the internal coating good uniformity, thin thickness, lightweight, thermal diffusivity is excellent:
(3) effectively dwindle the tire dynamic and balance deviation, have good noise elimination effect, can alleviate vibrations and noise in the Vehicle Driving Cycle, thereby improve the Vehicle Driving Cycle traveling comfort;
(4) improve tyre air tightness, reduce rolling resistance, thereby reduce oil consumption, realize energy-conservation;
(5) the internal coating tack is good, and heat stability is good, and internal coating can be slowed down wear on tyres, prolongs the tire normal service life;
(6) can be applicable to the tire of various brands, specification, model on the market, can satisfy all types of user demand.
Description of drawings
Fig. 1 is the section structure scheme drawing of existing safety tyre.
Fig. 2 is section structure scheme drawing of the present invention.
The specific embodiment
The invention will be further described below in conjunction with the drawings and specific embodiments, but protection scope of the present invention is not limited to this.
Embodiment 1
With reference to Fig. 2, a kind of puncture anti-gas-leak safety tyre of guaranteeing comprises carcass 3, on described carcass 3 inside faces evenly spray establish one deck adhesion agent internal coating 4, the thickness of described internal coating 3 is 0.5mm; Described adhesion agent is the combination of polyacrylic resin adhesion agent, polyurethane adhesive.The present invention is in tire inner wall coated with adhesive internal coating 4 equably, and coat thickness is even, and tyre beads section is consistent with interior thickness, positive and negative 0.1mm.
The guarantee production technology of safety tyre of described puncture anti-gas-leak comprises the steps:
(1) be that the mixed glue of polyacrylic resin adhesion agent, the polyurethane adhesive of 1:1.5 is dissolved in the acetone getting adhesive solvent with weight ratio; Solid content is 63% in the described adhesive solvent;
(2) carry out atomizing spraying: utilize flush coater that adhesive solvent is uniformly sprayed at the carcass inside face through clean; The shower nozzle that described flush coater adopts is Conic nozzle, and capacity of sprinkler is 55.2g/s, and the shower nozzle operating pressure is 3Mpa;
(3) the coating heat drying is finalized the design;
(4) be cycled to repeat step (2), (3) 50 times until to form thickness be the tire internal coating of 0.5mm.
Polyurethane has good physical and mechanical properties, excellent resistance to cold, elasticity, high glaze, and the advantages such as soft durometer varies with temperature not too greatly, organic solvent-resistant, still, the urethane resin water-resistant coating is bad, mechanical strength is not as good as acrylic resin, this and polyacrylates have certain complementation in nature, if both are compound, must overcome shortcoming separately, separately advantage of performance, make coating performance be improved significantly.
Safety performance detects:
Above-mentioned tire is installed on common sedan wheel hub, be filled with standard pressure in the tire, the steel nail through hammering into 4 centimetres of length, 0.5 centimetre of diameter, travels a week in the city at random behind puncture 5 places in crown part, tire shoulder section respectively, after testing, the gas leak phenomenon of not blowing out; Above-mentioned tire is installed on the general car wheel hub, is filled with standard pressure in the tire, the steel nail through hammering into 4 centimetres of length, 0.5 centimetre of diameter is respectively in crown part, tire shoulder section at random behind puncture 5 places, in highway driving 24h, after testing, the phenomenon of blowing out do not occur, leakage rate can be ignored.
The internal coating of present embodiment tire is adhered to stability detect, the result is shown in table 1, table 2.
Table 1
Figure 64626DEST_PATH_IMAGE002
Table 2
Figure 2013102967151100002DEST_PATH_IMAGE003
Condition for surveys: 38.4~39.6 ℃ of ambient temperatures, show that from result shown in table 1, the table 2 test completely, tire is intact, the tyre cavity internal coating illustrates that without significant change its internal coating 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 tyre of guaranteeing comprises carcass 3, on described carcass 3 inside faces evenly spray establish one deck adhesion agent internal coating 4, the thickness of described internal coating 4 is 3.7mm; Described adhesion agent is the combination of polyurethane adhesive, polyamide adhesion agent and hot melt adhesive.The present invention is in tire inner wall coated with adhesive internal coating 4 equably, and coat thickness is even, and tyre beads section is consistent with interior thickness, positive and negative 0.1mm.
The guarantee production technology of safety tyre of described puncture anti-gas-leak comprises the steps:
(1) be that the mixed glue of polyurethane adhesive, polyamide adhesion agent and the hot melt adhesive of 1:0.8:0.5 is dissolved in the DMF getting adhesive solvent with weight ratio; Solid content is 52% in the described adhesive solvent;
(2) carry out atomizing spraying: utilize flush coater that adhesive solvent is uniformly sprayed at the carcass inside face through clean; The shower nozzle that described flush coater adopts is Fan spray head, and capacity of sprinkler is 76.3g/s, and the shower nozzle operating pressure is 5Mpa;
(3) the coating heat drying is finalized the design;
(4) be cycled to repeat step (2), (3) 200 times until to form thickness be the tire internal coating of 3.7mm.
Safety performance detects:
Above-mentioned tire is installed on common sedan wheel hub, be filled with standard pressure in the tire, the steel nail through hammering into 5 centimetres of length, 0.5 centimetre of diameter, travels a week in the city at random behind puncture 10 places in crown part, tire shoulder section respectively, after testing, the gas leak phenomenon of not blowing out; Above-mentioned tire is installed on the general car wheel hub, is filled with standard pressure in the tire, the steel nail through hammering into 5 centimetres of length, 0.5 centimetre of diameter is respectively in crown part, tire shoulder section at random behind puncture 10 places, in highway driving 24h, after testing, the phenomenon of blowing out do not occur, leakage rate can be ignored.
The internal coating of present embodiment tire is adhered to stability detect, the result is shown in table 3, table 4.
Table 3
Figure 2013102967151100002DEST_PATH_IMAGE005
Table 4
Figure 541744DEST_PATH_IMAGE006
Condition for surveys: 38.4~39.6 ℃ of ambient temperatures, show that from result shown in table 3, the table 4 test completely, tire is intact, the tyre cavity internal coating illustrates that without significant change its internal coating 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 tyre of guaranteeing comprises carcass 3, on described carcass 3 inside faces evenly spray establish one deck adhesion agent internal coating 4, the thickness of described internal coating 4 is 4.5mm; Described adhesion agent is the combination of waterborne polyurethane adhesive and water base acrylate resin.The scope that internal coating 4 arranges is that whole the reaching of crown extends to tire article one kerbing rib 5 to the tire shoulder direction.The present invention is in tire inner wall coated with adhesive internal coating 4 equably, and coat thickness is even, and tyre beads section is consistent with interior thickness, positive and negative 0.1mm.
The guarantee production technology of safety tyre of described puncture anti-gas-leak comprises the steps:
(1) be that waterborne polyurethane adhesive and the water base acrylate resin of 1:0.6 is mixed to get liquid adhesive with weight ratio;
(2) carry out atomizing spraying: utilize flush coater that liquid adhesive is uniformly sprayed at the carcass inside face through clean; The shower nozzle that described flush coater adopts is Fan spray head, and capacity of sprinkler is 42.8g/s, and the shower nozzle operating pressure is 4Mpa;
(3) the coating heat drying is finalized the design;
(4) be cycled to repeat step (2), (3) 300 times until to form thickness be the tire internal coating of 4.5mm.
Safety performance detects:
Above-mentioned tire is installed on common sedan wheel hub, be filled with standard pressure in the tire, the steel nail through hammering into 5 centimetres of length, 0.5 centimetre of diameter, travels a week in the city at random behind puncture 10 places in crown part, tire shoulder section respectively, after testing, the gas leak phenomenon of not blowing out; Above-mentioned tire is installed on the general car wheel hub, is filled with standard pressure in the tire, the steel nail through hammering into 5 centimetres of length, 0.5 centimetre of diameter is respectively in crown part, tire shoulder section at random behind puncture 10 places, in highway driving 24h, after testing, the phenomenon of blowing out do not occur, leakage rate can be ignored.
The internal coating of present embodiment tire is adhered to stability detect, the result is shown in table 5, table 6.
Table 5
Table 6
Condition for surveys: 38.4~39.6 ℃ of ambient temperatures, show that from result shown in table 5, the table 6 test completely, tire is intact, the tyre cavity internal coating illustrates that without significant change its internal coating 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 tyre of guaranteeing comprises carcass 3, on described carcass 3 inside faces evenly spray establish one deck adhesion agent internal coating 4, the thickness of described internal coating 4 is 9.5mm; Described adhesion agent is polyurethane sealant.The scope that internal coating 4 arranges is that whole the reaching of crown extends to tire article one kerbing rib 5 to the tire shoulder direction.The present invention is in tire inner wall coated with adhesive internal coating 4 equably, and coat thickness is even, and tyre beads section is consistent with interior thickness, positive and negative 0.1mm.
The guarantee production technology of safety tyre of described puncture anti-gas-leak comprises the steps:
(1) polyurethane sealant is dissolved in the ethanol getting adhesive solvent; Solid content is 65% in the described adhesive solvent;
(2) carry out atomizing spraying: utilize flush coater that polyurethane adhesive solution is uniformly sprayed at the carcass inside face through clean; The shower nozzle that described flush coater adopts is Fan spray head, and capacity of sprinkler is 62.8g/s, and the shower nozzle operating pressure is 7Mpa;
(3) the coating heat drying is finalized the design;
(4) be cycled to repeat step (2), (3) 750 times until to form thickness be the tire internal coating of 9.5mm.
Above-mentioned tire is installed on common sedan wheel hub, be filled with standard pressure in the tire, the steel nail through hammering into 6 centimetres of length, 0.5 centimetre of diameter, travels a week in the city at random behind puncture 15 places in crown part, tire shoulder section respectively, after testing, the gas leak phenomenon of not blowing out; Above-mentioned tire is installed on the general car wheel hub, is filled with standard pressure in the tire, the steel nail through hammering into 6 centimetres of length, 0.5 centimetre of diameter is respectively in crown part, tire shoulder section at random behind puncture 15 places, in highway driving 24h, after testing, the phenomenon of blowing out do not occur, leakage rate can be ignored.
The internal coating of present embodiment tire is adhered to stability detect, the result is shown in table 7, table 8.
Table 7
Figure 2013102967151100002DEST_PATH_IMAGE011
Table 8
Figure 548325DEST_PATH_IMAGE012
Condition for surveys: 38.4~39.6 ℃ of ambient temperatures, show that from result shown in table 7, the table 8 test completely, tire is intact, the tyre cavity internal coating illustrates that without significant change its internal coating 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 tyre of guaranteeing comprises carcass 3, on described carcass 3 inside faces evenly spray establish one deck adhesion agent internal coating 4, the thickness of described internal coating 4 is 6.8mm; Described adhesion agent is polyvinyl acetate class emulsion glue.The scope that internal coating 4 arranges is that whole the reaching of crown extends to tire article one kerbing rib 5 to the tire shoulder direction.The present invention is in tire inner wall coated with adhesive internal coating 4 equably, and coat thickness is even, and tyre beads section is consistent with interior thickness, positive and negative 0.1mm.
The guarantee production technology of safety tyre of described puncture anti-gas-leak comprises the steps:
(1) with 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 inside face through clean; The shower nozzle that described flush coater adopts is Fan spray head, and capacity of sprinkler is 48.7g/s, and the shower nozzle operating pressure is 9Mpa;
(3) the coating heat drying is finalized the design;
(4) be cycled to repeat step (2), (3) 420 times until to form thickness be the tire internal coating of 6.8mm.
Safety performance detects:
Above-mentioned tire is installed on common sedan wheel hub, be filled with standard pressure in the tire, the steel nail through hammering into 5 centimetres of length, 0.3 centimetre of diameter, travels a week in the city at random behind puncture 20 places in crown part, tire shoulder section respectively, after testing, the gas leak phenomenon of not blowing out; Above-mentioned tire is installed on the general car wheel hub, is filled with standard pressure in the tire, the steel nail through hammering into 5 centimetres of length, 0.3 centimetre of diameter is respectively in crown part, tire shoulder section at random behind puncture 20 places, in highway driving 24h, after testing, the phenomenon of blowing out do not occur, leakage rate can be ignored.
The internal coating of present embodiment tire is adhered to stability detect, the result is shown in table 9, table 10.
Table 9
Figure 155893DEST_PATH_IMAGE014
Table 10
Figure 2013102967151100002DEST_PATH_IMAGE015
Condition for surveys: 38.4~39.6 ℃ of ambient temperatures, show that from result shown in table 9, the table 10 test completely, tire is intact, the tyre cavity internal coating illustrates that without significant change its internal coating 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 tyre of guaranteeing comprises carcass 3, on described carcass 3 inside faces evenly spray establish one deck adhesion agent internal coating 4, the thickness of described internal coating 4 is 2.6mm; Described adhesion agent is the combination of polyamide and polyester.The scope that described internal coating 4 arranges is that whole the reaching of crown extends to tire article one kerbing rib 5 to the tire shoulder direction.
The present invention is in tire inner wall coated with adhesive internal coating 4 equably, and coat thickness is even, and tyre beads section is consistent with interior thickness, positive and negative 0.1mm.
The guarantee production technology of safety tyre of described puncture anti-gas-leak comprises the steps:
(1) be that the mixed glue of the polyamide of 1:1.8 and polyester is dissolved in benzene-chloroform soln that volume ratio is 1:1 getting mixed glue solution with weight ratio; Solid content is 56% in the described mixed glue solution;
(2) carry out atomizing spraying: utilize flush coater that mixed solution is uniformly sprayed at the carcass inside face through clean; The shower nozzle that described flush coater adopts is Fan spray head, and capacity of sprinkler is 56.3g/s, and the shower nozzle operating pressure is 0.9Mpa;
(3) the coating heat drying is finalized the design;
(4) be cycled to repeat step (2), (3) 160 times until to form thickness be the tire internal coating of 2.6mm.
Safety performance detects:
Above-mentioned tire is installed on common sedan wheel hub, be filled with standard pressure in the tire, the steel nail through hammering into 4 centimetres of length, 0.4 centimetre of diameter, travels a week in the city at random behind puncture 10 places in crown part, tire shoulder section respectively, after testing, the gas leak phenomenon of not blowing out; Above-mentioned tire is installed on the general car wheel hub, is filled with standard pressure in the tire, the steel nail through hammering into 4 centimetres of length, 0.4 centimetre of diameter is respectively in crown part, tire shoulder section at random behind puncture 10 places, in highway driving 24h, after testing, the phenomenon of blowing out do not occur, leakage rate can be ignored.
The internal coating of present embodiment tire is adhered to stability detect, the result is shown in table 11, table 12.
Table 11
Figure 2013102967151100002DEST_PATH_IMAGE017
Table 12
Figure 566146DEST_PATH_IMAGE018
Condition for surveys: 38.4~39.6 ℃ of ambient temperatures, show that from result shown in table 11, the table 12 test completely, tire is intact, the tyre cavity internal coating illustrates that without significant change its internal coating 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 tyre of guaranteeing comprises carcass 3, on described carcass 3 inside faces evenly spray establish one deck adhesion agent internal coating 4, the thickness of described internal coating 3 is 0.2mm; Described adhesion agent is the combination of polyacrylic acid adhesion agent, polyurethane adhesive.The present invention is in tire inner wall coated with adhesive internal coating 4 equably, and coat thickness is even, and tyre beads section is consistent with interior thickness, positive and negative 0.1mm.
The described puncture anti-gas-leak safety tyre of guaranteeing adopts the preparation of following technique and gets:
(1) be that the mixed glue of polyacrylic acid adhesion agent, the polyurethane adhesive of 1:1.2 is dissolved in the acetone getting adhesive solvent with weight ratio; Solid content is 73% in the described adhesive solvent;
(2) carry out atomizing spraying: utilize flush coater that adhesive solvent is uniformly sprayed at the carcass inside face through clean; The shower nozzle that described flush coater adopts is Conic nozzle, and capacity of sprinkler is 75.2g/s, and the shower nozzle operating pressure is 3Mpa;
(3) the coating heat drying is finalized the design;
(4) be cycled to repeat step (2), (3) 20 times until to form thickness be the tire internal coating of 0.2mm.
Safety performance detects:
Above-mentioned tire is installed on common sedan wheel hub, be filled with standard pressure in the tire, the steel nail through hammering into 4 centimetres of length, 0.2 centimetre of diameter, travels a week in the city at random behind puncture 10 places in crown part, tire shoulder section respectively, after testing, the gas leak phenomenon of not blowing out; Above-mentioned tire is installed on the general car wheel hub, is filled with standard pressure in the tire, the steel nail through hammering into 4 centimetres of length, 0.2 centimetre of diameter is respectively in crown part, tire shoulder section at random behind puncture 10 places, in highway driving 24h, after testing, the phenomenon of blowing out do not occur, leakage rate can be ignored.
The internal coating of present embodiment tire is adhered to stability detect, the result is shown in table 13, table 14.
Table 13
Figure 356292DEST_PATH_IMAGE017
Table 14
Figure 219206DEST_PATH_IMAGE018
Condition for surveys: 38.4~39.6 ℃ of ambient temperatures, show that from result shown in table 13, the table 14 test completely, tire is intact, the tyre cavity internal coating illustrates that without significant change its internal coating 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 tyre of guaranteeing comprises carcass 3, on described carcass 3 inside faces evenly spray establish one deck adhesion agent internal coating 4, the thickness of described internal coating 4 is 8.2mm; Described adhesion agent is the combination of waterborne epoxy adhesives, water base organic silicon adhesive.The scope that internal coating 4 arranges is that whole the reaching of crown extends to tire article one kerbing rib 5 to the tire shoulder direction.The present invention is in tire inner wall coated with adhesive internal coating 4 equably, and coat thickness is even, and tyre beads section is consistent with interior thickness, positive and negative 0.1mm.
The described puncture anti-gas-leak safety tyre of guaranteeing adopts the preparation of following technique and gets:
(1) be that the waterborne epoxy adhesives of 1:0.4, water base organic silicon adhesive are mixed to get liquid adhesive with weight ratio;
(2) carry out atomizing spraying: utilize flush coater that liquid adhesive is uniformly sprayed at the carcass inside face through clean; The shower nozzle that described flush coater adopts is Fan spray head, and capacity of sprinkler is 48.2g/s, and the shower nozzle operating pressure is 10Mpa;
(3) the coating heat drying is finalized the design;
(4) be cycled to repeat step (2), (3) 600 times until to form thickness be the tire internal coating of 8.2mm.
Safety performance detects:
Above-mentioned tire is installed on common sedan wheel hub, be filled with standard pressure in the tire, the steel nail through hammering into 5 centimetres of length, 0.5 centimetre of diameter, travels a week in the city at random behind puncture 10 places in crown part, tire shoulder section respectively, after testing, the gas leak phenomenon of not blowing out; Above-mentioned tire is installed on the general car wheel hub, is filled with standard pressure in the tire, the steel nail through hammering into 5 centimetres of length, 0.5 centimetre of diameter is respectively in crown part, tire shoulder section at random behind puncture 10 places, in highway driving 24h, after testing, the phenomenon of blowing out do not occur, leakage rate can be ignored.
The internal coating of present embodiment tire is adhered to stability detect, the result is shown in table 15, table 16.
Table 15
Table 16
Condition for surveys: 38.4~39.6 ℃ of ambient temperatures, show that from result shown in table 15, the table 16 test completely, tire is intact, the tyre cavity internal coating illustrates that without significant change its internal coating 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 tyre of guaranteeing comprises carcass 3, on described carcass 3 inside faces evenly spray establish one deck adhesion agent internal coating 4, the thickness of described internal coating 3 is 1.7mm; Described adhesion agent is the combination of acrylic acid modified polyurethane adhesion agent.The present invention is in tire inner wall coated with adhesive internal coating 4 equably, and coat thickness is even, and tyre beads section is consistent with interior thickness, positive and negative 0.1mm.
The described puncture anti-gas-leak safety tyre of guaranteeing adopts the preparation of following technique and gets:
(1) the acrylic acid modified polyurethane adhesion agent is dissolved in the tetrahydrofuran getting adhesive solvent; Solid content is 67% in the described adhesive solvent;
(2) carry out atomizing spraying: utilize flush coater that adhesive solvent is uniformly sprayed at the carcass inside face through clean; The shower nozzle that described flush coater adopts is Conic nozzle, and capacity of sprinkler is 75.2g/s, and the shower nozzle operating pressure is 6Mpa;
(3) the coating heat drying is finalized the design;
(4) be cycled to repeat step (2), (3) 100 times until to form thickness be the tire internal coating of 1.7mm.
Tire safe capability detects:
Above-mentioned tire is installed on common sedan wheel hub, be filled with standard pressure in the tire, the steel nail through hammering into 5 centimetres of length, 0.5 centimetre of diameter, travels a week in the city at random behind puncture 5 places in crown part, tire shoulder section respectively, after testing, the gas leak phenomenon of not blowing out; Above-mentioned tire is installed on the general car wheel hub, is filled with standard pressure in the tire, the steel nail through hammering into 5 centimetres of length, 0.5 centimetre of diameter is respectively in crown part, tire shoulder section at random behind puncture 5 places, in highway driving 24h, after testing, the phenomenon of blowing out do not occur, leakage rate can be ignored.
The internal coating of present embodiment tire is adhered to stability detect, the result is shown in table 17, table 18.
Table 17
Table 18
Figure 326522DEST_PATH_IMAGE003
Condition for surveys: 38.4~39.6 ℃ of ambient temperatures, show that from result shown in table 17, the table 18 test completely, tire is intact, the tyre cavity internal coating illustrates that without significant change its internal coating tack is good, is difficult for peeling off with tire.
The anti-bundle of the present invention, anti-gas-leak, after wheel crown part, shoulder suffered that diameter≤5mm foreign matter puncture is worn, internal coating can realize automatic repair function, and is non-maintaining behind the tire foreign bodies removal, be excused from a college course benefit, can continue safety traffic.
The present invention utilizes the tack of internal coating material and holds the characteristics of viscosity, has increased the function that still can keep tyre air tightness behind the tyre puncture.When sharp objects penetrated tire, adhesion agent internal coating 4 can tightly wrap sharp object, thereby played the anti-gas-leak effect; When sharp object was extracted, meeting automatic necking in adhesion agent internal coating 4 cut places relied on viscosity to make cut place adhesion agent internal coating 4 bonding.Can effectively play anti-puncture, anti-gas-leak effect.
The present invention not only can effectively reduce the traffic accident that is caused by the reason such as blow out, and improves driving safety; Exempt to change tire, exempt from the tire patching function but also have, improve driving efficient; Improve tyre air tightness; Dwindle the kinetic balance deviation, reduce the tire running resistance, it is fuel-efficient to lower consumption; Superpower thermal adaptability; It is carefree to run at high speed; Reduce tire noise in the driving process; Alleviate wearing and tearing, prolong the characteristics such as Using Life of Tyre.

Claims (10)

1. puncture anti-gas-leak safety tyre of guaranteeing comprises carcass, it is characterized in that: described safety tyre adopts following technique preparation and gets:
(1) prepares liquid adhesive;
(2) carry out atomizing spraying: utilize flush coater that adhesion agent is uniformly sprayed on the process carcass inside face of clean;
(3) the coating heat drying is finalized the design;
(4) be cycled to repeat step (2), (3) several times until formation thickness is the tire internal coating of 0.2~10mm.
2. the puncture anti-gas-leak according to claim 1 safety tyre of guaranteeing, it is characterized in that: in the step (1), described liquid adhesive adopts the adhesive solvent by obtaining behind the dissolution with solvents adhesion agent, and solid content is 7~91% in the described adhesive solvent; Described adhesion agent is following one or more combination in any: polyacrylic resin, modified polypropene acid resin, polyurethane, modified polyurethane, polyester, modified poly ester, polyamide, modified polyamide, hot melt adhesive, modified hot melt adhesive, sealant, modification sealant; Described solvent adopts the organic solvent suitable with above-mentioned adhesion agent.
3. the puncture anti-gas-leak according to claim 1 safety tyre of guaranteeing, it is characterized in that: in the step (1), described liquid adhesive adopts water-based adhesive one of following or combination in any more than two kinds: waterborne polyurethane adhesive, water-based modification polyurethane adhesive, water base acrylate resin, water-based modification acrylate resin, waterborne epoxy adhesives, water-based modification epoxy adhesive, water base organic silicon adhesive, water-based modification organic silicon adhesive, water base polyvinyl acetate class emulsion glue, water-based modification polyvinyl acetate class emulsion glue.
4. the puncture anti-gas-leak according to claim 1 safety tyre of guaranteeing is characterized in that: the scope of described internal coating setting be crown all and extend to tire article one kerbing rib to the tire shoulder direction.
5. the puncture anti-gas-leak according to claim 2 safety tyre of guaranteeing, it is characterized in that: described adhesion agent is the combination of polyurethane, polyamide and hot melt adhesive, wherein the weight ratio of polyurethane, polyamide and hot melt adhesive is 1:0.8~1.5:0.2~0.8, one of described solvent employing is following: benzene, toluene, acetone, methylene chloride, methenyl choloride, carbon tetrachloride, ethyl acetate, DMF.
6. the puncture anti-gas-leak according to claim 2 safety tyre of guaranteeing, it is characterized in that: described adhesion agent is the combination of polyurethane and polyacrylic resin, the weight ratio of described polyurethane and polyacrylic resin is 1:0.4~1.2.
7. the puncture anti-gas-leak according to claim 3 safety tyre of guaranteeing, it is characterized in that: described adhesion agent is the combination of waterborne polyurethane adhesive and water base acrylate resin, and wherein the weight ratio of waterborne polyurethane adhesive and water base acrylate resin is 1:0.4~0.8.
8. the puncture anti-gas-leak according to claim 1 safety tyre of guaranteeing, it is characterized in that: described atomizing comprises hydraulic atomizing and binary air atomizing; The shower nozzle that described flush coater adopts is a kind of in Fan spray head, Conic nozzle, fluid column stream shower nozzle, atomizer, the flat shower nozzle, and capacity of sprinkler is controlled to be 1~99g/s, and the shower nozzle operating pressure is controlled to be 0.2~10Mpa.
9. the puncture anti-gas-leak according to claim 2 safety tyre of guaranteeing, it is characterized in that: described safety tyre adopts following technique preparation and gets:
(1) be that the mixed glue of polyurethane, polyamide and the hot melt adhesive of 1:0.8:0.5 is dissolved in the DMF getting adhesive solvent with weight ratio; Solid content is 52% in the described adhesive solvent;
(2) carry out atomizing spraying: utilize flush coater that adhesive solvent is uniformly sprayed at the carcass inside face through clean; The shower nozzle that described flush coater adopts is Fan spray head, and capacity of sprinkler is 76.3g/s, and the shower nozzle operating pressure is 5Mpa;
(3) the coating heat drying is finalized the design;
(4) be cycled to repeat step (2), (3) 200 times until to form thickness be the tire internal coating of 3.7mm.
10. the puncture anti-gas-leak according to claim 3 safety tyre of guaranteeing, it is characterized in that: described safety tyre adopts following technique preparation and gets:
(1) be that waterborne polyurethane adhesive and the water base acrylate resin of 1:0.6 is mixed to get liquid adhesive with weight ratio;
(2) carry out atomizing spraying: utilize flush coater that liquid adhesive is uniformly sprayed at the carcass inside face through clean; The shower nozzle that described flush coater adopts is Fan spray head, and capacity of sprinkler is 42.8g/s, and the shower nozzle operating pressure is 4Mpa;
(3) the coating heat drying is finalized the design;
(4) be cycled to repeat step (2), (3) 300 times until to form thickness be the tire internal coating of 4.5mm.
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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
CN113185934A (en) * 2021-05-10 2021-07-30 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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CN113185934A (en) * 2021-05-10 2021-07-30 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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