阅读说明：本技术 一种迷彩轮胎及其加工工艺 (Camouflage tire and processing technology thereof ) 是由 耿鹏 黄应平 于 2019-11-06 设计创作，主要内容包括：本发明公开了一种迷彩轮胎及其加工工艺,属于轮胎制造领域,其技术方案要点是原料包括以下重量份的配套白胎面塑料胶72-78份、天然橡胶10-22份、丁苯橡胶5.5-11.5份、白炭黑23-33份、橡胶操作油1-7份、氧化锌2-6份、硬脂酸1.1-2.7份、活性剂0.1-0.7份、防老剂1-5份、防护蜡1-2份、色母胶2.5-4.5份、促进剂2.5-3.5份、硫磺1-3份、钛白粉1.1-3.1份；配套白胎面橡胶油天然橡胶和三元乙丙橡胶硫化形成的混合胶料,其中天然橡胶与三元乙丙橡胶混合的重量比为70-80：30-20,达到使得迷彩轮胎具有优良的耐候性能的效果。(The invention discloses a camouflage tire and a processing technology thereof, belonging to the field of tire manufacturing, and the technical scheme is characterized in that the raw materials comprise 72-78 parts of matched white tread plastic rubber, 10-22 parts of natural rubber, 5.5-11.5 parts of styrene butadiene rubber, 23-33 parts of white carbon black, 1-7 parts of rubber operating oil, 2-6 parts of zinc oxide, 1.1-2.7 parts of stearic acid, 0.1-0.7 part of active agent, 1-5 parts of anti-aging agent, 1-2 parts of protective wax, 2.5-4.5 parts of color master batch, 2.5-3.5 parts of accelerator, 1-3 parts of sulfur and 1.1-3.1 parts of titanium pigment by weight; the white tread rubber oil is matched with a mixed rubber material formed by vulcanizing natural rubber and ethylene propylene diene monomer, wherein the weight ratio of the natural rubber to the ethylene propylene diene monomer is 70-80:30-20, so that the camouflage tire has excellent weather resistance.)

1. A camouflage tire characterized by: the raw materials comprise, by weight, 72-78 parts of matched white tread plastic rubber, 10-22 parts of natural rubber, 5.5-11.5 parts of styrene butadiene rubber, 23-33 parts of white carbon black, 1-7 parts of rubber operating oil, 2-6 parts of zinc oxide, 1.1-2.7 parts of stearic acid, 0.1-0.7 part of an active agent, 1-5 parts of an anti-aging agent, 1-2 parts of protective wax, 2.5-4.5 parts of color master batch, 2.5-3.5 parts of an accelerator, 1-3 parts of sulfur and 1.1-3.1 parts of titanium dioxide;

the white tread rubber oil is matched with a mixed rubber material formed by vulcanizing natural rubber and ethylene propylene diene monomer, wherein the weight ratio of the natural rubber to the ethylene propylene diene monomer is 70-80: 30-20.

2. The camouflage tire of claim 1, wherein: the raw materials also comprise 1.2 to 2.8 parts by weight of C5 resin.

3. The camouflage tire of claim 1, wherein: the raw materials also comprise 1.2 to 3.0 parts by weight of sodium silicate.

4. The camouflage tire of claim 1, wherein: the anti-aging agent comprises 1 to 3 weight parts of anti-aging agent 264 and 0.5 to 1.5 weight parts of anti-aging agent 2246.

5. The camouflage tire of claim 1, wherein: the color master batch comprises 0.8 to 1.6 parts of ultramarine blue master batch and 1.8 to 2.6 parts of blue master batch in parts by weight.

6. The camouflage tire of claim 1, wherein: the accelerant comprises 0.3 to 0.7 portion of accelerant TMTD, 0.3 to 0.7 portion of accelerant CZ and 1.4 to 2.2 portions of accelerant MIX-4 according to parts by weight.

7. The camouflage tire of claim 1, wherein: YC-4000 is adopted as the active agent.

8. A process for manufacturing a camouflage tire according to any one of claims 1 to 7, comprising the steps of:

s1, a mixing procedure, namely weighing the raw materials according to the parts by weight, mixing the matched white tread plastic rubber, natural rubber, styrene butadiene rubber, white carbon black, rubber process oil, zinc oxide, stearic acid, an active agent, an anti-aging agent, protective wax, color masterbatch and titanium dioxide for 550-650S at the temperature of 140-160 ℃, then adding an accelerator and sulfur to mix for 100-140S to form a rubber material, and discharging the rubber material at the temperature of 140-150 ℃;

s2, extruding, namely extruding the rubber to form a tread and a tire side;

s3, rolling;

s4, forming a tire bead;

s5, cutting the cord fabric;

s6, pasting a triangular adhesive tape;

s7, forming a belt layer;

s8, tire molding, namely brushing adhesive cement on the molded tire tread, wherein the adhesive cement comprises the following components in parts by weight: 100 parts of natural rubber, 80-90 parts of carbon black master batch, 60-76 parts of carbon black, 55-75 parts of light calcium carbonate, 10-22 parts of rubber operating oil, 15-27 parts of zinc oxide, 5-15 parts of stearic acid, 3-11 parts of rosin and 03-11 parts of PEG-40003; wherein the carbon black master batch comprises 40-50 parts of natural rubber, 28-36 parts of carbon black, 5.7-9.7 parts of rubber operating oil and 0.5-1.1 parts of stearic acid;

and S9, vulcanizing at the temperature of 150-160 ℃ for 450-550S to form the finished tire.

9. The process of claim 8, wherein the step of forming a camouflage tire comprises: the finished tire obtained in step S9 includes a tread and sidewalls, and a camouflage layer is provided on the tread.

Technical Field

The invention relates to the field of tire manufacturing, in particular to a camouflage tire and a processing technology thereof.

Background

With the development of automobile technology and the improvement of the living standard of people, automobiles become necessities of life of people, so that the demand of tires is increased.

The existing tires are basically black, and because the black color wheel is added with a carbon black component, the black tires have special functions of strengthening, resisting ultraviolet radiation, resisting outdoor aging and shielding light besides dirt resistance, but people know from practice that the consumption of the tires needs to be bright and attractive besides the performance of the tires, so that in order to meet the requirements of young people, a proper coloring method or a proper coloring agent is selected to improve the appearance quality of the tires.

Compared with the tire only added with carbon black, the tire has the advantage that the weather resistance of the tire is reduced after partial coloring agent is used for replacing the carbon black, so that the service life of the colored tire is relatively short.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a camouflage tire, which achieves the effect of enabling the camouflage tire to have excellent weather resistance.

The technical purpose of the invention is realized by the following technical scheme:

a camouflage tire comprises the following raw materials, by weight, 72-78 parts of white tread plastic cement, 10-22 parts of natural rubber, 5.5-11.5 parts of styrene-butadiene rubber, 23-33 parts of white carbon black, 1-7 parts of rubber operating oil, 2-6 parts of zinc oxide, 1.1-2.7 parts of stearic acid, 0.1-0.7 part of an active agent, 1-5 parts of an anti-aging agent, 1-2 parts of protective wax, 2.5-4.5 parts of color master batch, 2.5-3.5 parts of an accelerator, 1-3 parts of sulfur and 1.1-3.1 parts of titanium dioxide; the white tread rubber oil is matched with a mixed rubber material formed by vulcanizing natural rubber and ethylene propylene diene monomer, wherein the weight ratio of the natural rubber to the ethylene propylene diene monomer is 70-80: 30-20.

By adopting the technical scheme, the ethylene propylene diene monomer rubber is used as a base material of the tire, has poor self-adhesion but strong ozone resistance, so that the ethylene propylene diene monomer rubber, the natural rubber and the styrene butadiene rubber are mixed for use, the weather resistance of the tire can be improved, and the wear resistance, the heat resistance and the aging resistance of the tire can be effectively improved.

The natural rubber, the ethylene propylene diene monomer and the styrene butadiene rubber are mixed to form a rubber material, the rubber material enables the ethylene propylene diene monomer, the natural rubber and the styrene butadiene rubber to have good self-adhesion under the action of sulfur, the bonding strength between crosslinking is improved, the bonding performance of steel wires and the rubber in the tire manufacturing process is effectively improved, and meanwhile, the sulfur is insoluble in the rubber, so that the phenomenon of frosting caused by migration to the surface of the rubber material is avoided, and the appearance quality of the tire is ensured.

The white carbon black has a certain reinforcing effect, can increase the adhesiveness of the steel wire and the sizing material, and can effectively reduce the rolling resistance of the tire and improve the ozone resistance of the tire, so that the weather resistance of the tire is indirectly improved.

The addition of the rubber operating oil has good softening and dispersing effects on the white carbon black, the rubber material and the sulfur, increases the viscosity of the rubber material, and is beneficial to the sufficient dispersion of the white carbon black and the sulfur in the rubber material after the rubber material is softened, so that the cold resistance of the tire is improved, and the rubber operating oil has an activating effect on the accelerator. The rubber material and the sulfur are crosslinked to form a net structure in the mixing process, and the addition of the rubber oil can relax the net structure formed by the sulfur and the rubber material, increase the distance between molecular chains and the permeation of oxygen, and contribute to the sufficient diffusion of white carbon black, an accelerant, an active agent and the like, so that the sufficient reaction in the tire processing engineering is facilitated, the plasticity is strong, the pollution is small, and the gel phenomenon of the rubber material can be inhibited.

The zinc oxide plays a promoting role in the vulcanization process of the rubber material, the zinc oxide reacts with the promoter to generate a zinc salt complex, the zinc ion containing empty orbits has strong polarization capacity and is easy to promote the cracking of sulfur annular molecules so as to promote the vulcanization of the rubber, and meanwhile, the zinc oxide is matched with stearic acid for use, and the generated zinc stearate increases the intermiscibility of the zinc oxide and the rubber material, so that the zinc oxide is favorably and fully dispersed in the rubber material. Meanwhile, the zinc oxide has good reinforcing and coloring effects, is beneficial to fully mixing the color masterbatch in the rubber material, improves the coloring performance of the color masterbatch on the rubber material, and prolongs the service life of the camouflage tire. The zinc stearate generated by the zinc oxide and the stearic acid can effectively improve the diffusion of the masterbatch in the rubber material, thereby being beneficial to the uniform color of the tire, and meanwhile, the addition of the protective wax can obviously improve the tinting strength of the masterbatch and effectively prolong the service life of the camouflage tire.

The activator is helpful to improve the activity of the accelerator, reduce the dosage of the accelerator and effectively shorten the vulcanization time. The zinc oxide, the stearic acid and the activator are used in a matching way, so that the production cost of the tire can be effectively reduced, and the crosslinking density of rubber and sulfur can be improved, and the aging resistance of the tire can be effectively improved.

The addition of the color masterbatch makes the color of the tire not single any more, can meet the requirements of the public, and simultaneously can not influence the weather resistance of the tire.

The titanium dioxide has the functions of reinforcement, aging resistance and filling, and the tire is sun-proof, non-cracking and non-discoloring when the titanium dioxide is added, so that the color resistance of the camouflage tire is improved, and the durability of the camouflage tire is improved.

The invention is further provided that the raw material also comprises 1.2-2.8 parts of C5 resin.

By adopting the technical scheme, the compatibility of the C5 petroleum resin with natural rubber, ethylene propylene diene monomer and styrene butadiene rubber is good, meanwhile, the C5 petroleum resin has excellent water resistance and acid resistance, meanwhile, the C5 petroleum resin has excellent tackifying property and stability, the bonding property of rubber materials can be improved, meanwhile, the C5 petroleum resin has excellent stability, the phenomenon of color change of the camouflage tire in the using process is effectively prevented, and therefore the durability of the camouflage tire is improved.

The invention is further provided that the raw material also comprises 1.2-3.0 parts of sodium silicate.

By adopting the technical scheme, the sodium silicate is coated on the surface of the titanium dioxide to form a layer of uniform amorphous silicon oxide hydrate surface-form film, the surface-form film has uniform thickness, structural connection and stable chemical property, and the generated amorphous silicon oxide hydrate is firmly bonded on the surface of the titanium dioxide in a hydroxyl form, so that the titanium dioxide is not easy to be chemically corroded, and meanwhile, the covering power of the masterbatch can be effectively improved, and the chalking resistance of a tire can be improved.

The invention is further provided that the anti-aging agent comprises 1-3 parts of anti-aging agent 264 and 0.5-1.5 parts of anti-aging agent 2246 by weight.

By adopting the technical scheme, the antioxidant 264 can inhibit and delay the oxidative degradation of the tire, so that the service life of the tire can be prolonged, meanwhile, the antioxidant 264 is matched with white carbon black and protective wax for use, so that the tire can be prevented from being damaged by various factors in weather, the tire is protected, the service life of the tire is prolonged, and meanwhile, the antioxidant 264 is easy to disperse in rubber materials, and the aggregation phenomenon cannot occur. The anti-aging agent 2246 is a non-pollution anti-aging agent, and the anti-aging agent 264 and the anti-aging agent 2246 are used in combination for inhibiting thermal oxidation, aging, flex aging and valence-variable metals, so that the anti-aging performance of the tire can be effectively improved, and the service life of the tire can be effectively prolonged.

The invention is further set that the color master batch comprises 0.8-1.6 parts of ultramarine blue master batch and 1.8-2.6 parts of blue master batch by weight.

By adopting the technical scheme, the ultramarine blue master batch ultramarine toner belongs to non-toxic inorganic pigment, is alkali-resistant and high-temperature-resistant, and is extremely stable to sunlight and wind and rain in the atmosphere; the blue master batch adopts blue master powder, the dispersion performance and the coloring performance of the blue master powder are good, and the blue master powder and the coloring performance are matched for use, so that the service life of the camouflage tire is prolonged.

The invention is further set that the accelerant comprises 0.3 to 0.7 portion of accelerant TMTD, 0.3 to 0.7 portion of accelerant CZ and 1.4 to 2.2 portions of accelerant MIX-4 according to the parts by weight.

By adopting the technical scheme, the accelerator TMTD, the accelerator CZ and the accelerator MIX-4 are used in a matched manner, namely, the accelerator CZ is a high-activity after-effect accelerator which plays a role in accelerating the early vulcanization of the rubber material, and is excellent in scorching resistance, safe to process, short in vulcanization time, strong in accelerating effect in the later period and capable of effectively improving the crosslinking degree of the rubber material. The accelerator MIX-4 can also be used as a flowing dispersant, which is beneficial to the full diffusion of an active agent, sulfur, white carbon black and color masterbatch in a sizing material, and meanwhile, the accelerator MIX-4 also has the capability of ultraviolet absorption resistance, so that the aging resistance of the tire is effectively improved, and the durability of the tire is further improved.

The invention further provides that the active agent adopts YC-4000.

Object two of the present invention: the processing technology of the camouflage tire comprises the following steps:

s1, a mixing procedure, namely weighing the raw materials according to the parts by weight, mixing the matched white tread plastic rubber, natural rubber, styrene butadiene rubber, white carbon black, rubber operating oil, zinc oxide, stearic acid, an active agent, an anti-aging agent, protective wax, color masterbatch and titanium dioxide for 550-650S at the temperature of 140-160 ℃, then adding an accelerator and sulfur to mix for 100-140S to form a rubber material, and discharging the rubber material at the temperature of 140-150 ℃;

s2, extruding, namely extruding the rubber to form a tread and a tire side;

s3, rolling;

s4, forming a tire bead;

s5, cutting the cord fabric;

s6, pasting a triangular adhesive tape;

s7, forming a belt layer;

s8, tire molding, namely brushing adhesive cement on the molded tire tread, wherein the adhesive cement comprises the following components in parts by weight: 100 parts of natural rubber, 80-90 parts of carbon black master batch, 60-76 parts of carbon black, 55-75 parts of light calcium carbonate, 10-22 parts of rubber operating oil, 15-27 parts of zinc oxide, 5-15 parts of stearic acid, 3-11 parts of rosin and 03-11 parts of PEG-40003; wherein the carbon black master batch comprises 40-50 parts of natural rubber, 28-36 parts of carbon black, 5.7-9.7 parts of rubber operating oil and 0.5-1.1 parts of stearic acid;

and S9, vulcanizing at the temperature of 150-160 ℃ for 450-550S to form the finished tire.

By adopting the technical scheme, the rubber materials of the tire tread and the tire side are the same, so that the performance of the tire side is the same as that of the tire tread, and the tire side is blue after the rubber materials of the tire side are the same as that of the tire tread, and the attractiveness of the tire is improved.

The sidewall is an outer layer rubber which can protect the surface of the tire body from weather erosion, so the sidewall has the performances of good weather resistance, ozone aging resistance, abrasion resistance, circumferential and radial crack resistance and the like, and when the anti-aging agent in the sidewall is exhausted, the white carbon black in the sidewall rubber can further play the roles of crack resistance and ozone aging resistance, thereby improving the durability of the tire.

The addition of the light calcium carbonate in the mucilage can reduce the use amount of the natural rubber, so that the cost is saved, and meanwhile, the addition of the light calcium carbonate enables the mucilage to have excellent wear resistance and tear resistance, so that the phenomenon that the camouflage on the tire falls off after being used for a period of time is prevented, and the durability of the camouflage tire is improved.

The PEG-4000 is used as a vulcanization activator, can adjust the bonding performance of the semi-finished product tread and light calcium carbonate and the like, and also has the effect of improving the vulcanization speed, so that the vulcanization speed and the crosslinking degree of the rubber cement and the tread are effectively improved, and simultaneously, the PEG-4000 and zinc oxide are used in a matched manner, so that the acid generated in the vulcanization process can be neutralized, and the durability of the camouflage tire is effectively improved.

The rosin is used as tackifying resin, so that the initial viscosity of the mucilage can be increased, the mucilage can be coated on the surface of the tire tread quickly, and meanwhile, the bonding strength between the mucilage and the tire tread is also effectively improved.

The tire has the advantages that after the mucilage is coated on the tire surface, vulcanization is carried out again, so that the mucilage and the tire rubber are fully mixed to form the camouflage tire, and compared with the camouflage tire which is sprayed in the later period, after the mucilage and the semi-finished product of the tire are vulcanized together, the durability of camouflage on the tire is effectively improved, and the influence on the attractiveness of the tire caused by fading in the using process is prevented.

The invention is further arranged that the finished tire obtained in step S9 comprises a tread and sidewalls, the tread being provided with a camouflage layer.

In conclusion, the invention has the following beneficial effects:

1. the wear resistance and weather resistance of the tire can be effectively improved by the matched use of the natural rubber, the ethylene propylene diene monomer rubber and the styrene butadiene rubber, and the dispersibility of the color master batch in the rubber material and the coloring performance of the color master batch are effectively improved by the matched use of the zinc oxide, the stearic acid and the titanium dioxide, so that the durability of the camouflage tire is effectively improved;

2. the addition of C5 resin and sodium silicate, the combination of sodium silicate and titanium white powder effectively improves the hiding power of masterbatch in the tire, can also effectively improve anti pulverization performance simultaneously, and the addition of C5 resin can increase the adhesive property between the sizing material, has certain stabilizing effect to the masterbatch simultaneously, prevents that the phenomenon of discolouring from appearing in the use of camouflage tire, improves the durability of camouflage tire.

Detailed Description

The present invention will be described in further detail with reference to examples.