Elastic tire flap with deodorizing rubber compound and manufacturing method of elastic tire flap

Abstract

The invention provides an elastic tire flap with a deodorizing rubber compound and a manufacturing method thereof, and relates to the technical field of tire manufacturing. The elastic tire flap with the deodorized rubber compound is prepared from the following raw materials in parts by weight: 100 to 300 parts of natural rubber, 30 to 100 parts of latex reclaimed rubber, 100 to 200 parts of desulfurized rubber powder, 20 to 30 parts of flap leftover material rubber edge powder, 5 to 10 parts of deodorizer and 10 to 20 parts of additive. The deodorant is added into the formula, so that the purposes of removing peculiar smell and reducing emission are achieved, and the environmental protection performance is improved; secondly, the latex reclaimed rubber is added into the formula, so that the elongation and the elasticity of the cushion belt are increased, the cost is effectively reduced, and the market competitiveness of the product is improved; and secondly, the rubber edge of the rim band offal is ground into powder and then added into the formula to prepare a rubber compound, so that the recycling of the rim band offal is realized, the resource waste is reduced, the cost and the environmental pollution are reduced, and meanwhile, the elasticity of the rim band is also increased.

Description

Technical Field

[0001] The invention relates to the technical field of tire manufacturing, in particular to an elastic tire flap with deodorized mixed rubber and a manufacturing method thereof. Background Art

[0002] With the rise and booming development of the automobile industry, people have higher and higher requirements on the quality of rubber tires. In the tire manufacturing process, elastic tire flaps are usually used.

[0003] The traditional tire flap production process is designed according to the formula. Raw rubber, reclaimed rubber and compounding agents are mixed into mixed rubber on an internal mixer or an open mixer, and then extruded into embryonic strips after hot refining, and vulcanized into tire flaps. The disadvantages of this technology are: the large pieces of reclaimed rubber need to be broken into small pieces until they become viscous in the internal mixer, so that the compounding agents can be mixed with raw rubber and reclaimed rubber under the pressure of the upper bolt and the extrusion and shearing of the rotor. The reclaimed rubber takes a certain amount of time and energy in the crushing process; the process control is relatively complex, and a moderate Mooney viscosity is required to make the compounding agents dispersed evenly. Too high or too low Mooney viscosity will cause the compounding agents to be concentrated in local positions and dispersed unevenly.

[0004] Secondly, there are some problems with traditional elastic tire belts. For example, the strong odor affects the environment and user experience, the high cost affects the market competitiveness, the lack of elasticity affects its performance, and the improper handling of the scraps of the belts causes waste of resources and environmental pollution. Summary of the invention

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies of the prior art, the present invention provides an elastic tire flap with deodorized mixed rubber and a manufacturing method thereof, which solves the problems raised by the above-mentioned background technology.

[0007] (II) Technical solution

[0008] To achieve the above objectives, the present invention is implemented through the following technical scheme: an elastic tire flap with deodorized mixed rubber, comprising the following raw materials in parts by weight: 100-300 parts of natural rubber, 30-100 parts of latex reclaimed rubber, 100-200 parts of desulfurized rubber powder, 20-30 parts of rubber edge powder from scraps of the flap, 5-10 parts of a deodorizer, and 10-20 parts of an additive.

[0009] Among them, the purpose of adding deodorant to the formula is to remove odor, reduce emissions, and thus increase environmental performance. In this way, the rubber tire flap will not produce unpleasant odor during use, which is more friendly to the environment and users.

[0010] Secondly, latex recycled rubber is added to the formula, which has the advantage of high elongation, and is superior to natural rubber and synthetic rubber. And its price is greatly reduced, only 1 / 3 of the unit price of natural rubber and synthetic rubber. By adding latex recycled rubber, not only the elongation and elasticity of the pad are increased, but also the cost is effectively compressed, which improves the market competitiveness of the product.

[0011] Secondly, the rubber edges of the scraps of the pads are ground into powder and added to the formula to make mixed rubber. This design not only realizes the recycling of the scraps of the pads, reduces resource waste, reduces costs and environmental pollution, but also increases the elasticity of the pads.

[0012] Preferably, the elastic tire pad with deodorized mixed rubber comprises the following raw materials in parts by weight: 200 parts of natural rubber, 80 parts of latex recycled rubber, 150 parts of desulfurized rubber powder, 25 parts of rubber edge powder from pad scraps, 8 parts of deodorizer, and 15 parts of additives.

[0013] Preferably, the deodorant comprises the following raw materials in parts by weight: 2-4 parts of plant extract, 2-4 parts of spices, and 1-2 parts of adsorbent.

[0014] Preferably, the plant extract is green tea extract, the flavor is natural flavor, and the adsorbent is activated carbon.

[0015] Preferably, the auxiliary agent comprises the following raw materials in parts by weight: 2-4 parts of accelerator, 2-4 parts of active agent, 2-4 parts of antioxidant, 2-4 parts of filler, and 2-4 parts of softener.

[0016] Preferably, the accelerator is a vulcanization accelerator, the active agent is a combination of zinc oxide and stearic acid, the antioxidant is antioxidant 4010NA, the filler is a mixture of one or more of calcium carbonate, talcum powder, and mica powder, and the softener is paraffin oil.

[0017] The present invention further discloses a method for manufacturing an elastic tire flap with deodorized mixed rubber, which is characterized by comprising the following steps:

[0018] Step 1: Raw material preparation:

[0019] Prepare raw materials in a certain proportion, the raw materials including natural rubber, latex regenerated rubber, desulfurized rubber powder, rubber edge powder of padding strips, deodorizer and additives;

[0020] Step 2: Preliminary mixing:

[0021] Add natural rubber and desulfurized rubber powder into an internal mixer for preliminary mixing, and add additives and deodorizer during the mixing process;

[0022] Step 3: Continue mixing:

[0023] Add latex reclaimed rubber and continue mixing;

[0024] Step 4: Make the rubber compound:

[0025] Add the rubber edge powder of the lower scraps of the pad belt and continue to mix to make a mixed rubber;

[0026] Step 5: Molding and vulcanization:

[0027] The rubber mixture is molded and vulcanized to obtain the finished elastic tire flap.

[0028] Preferably, in step 2, the mixer temperature of the internal mixer is 100-120° C., the mixing time is 10-20 minutes, and the auxiliary agent and deodorant are added at the 5th to 10th minute of mixing.

[0029] Preferably, in step three, when the latex regenerated rubber is added and the mixing is continued, the temperature of the internal mixer is maintained at 120-130° C. and the mixing time is 15-20 minutes.

[0030] Preferably, in step 4, when adding the rubber edge powder of the scraps from the pad belt for mixing, the temperature of the internal mixer is adjusted to 130-150° C. and the mixing time is 20-25 minutes.

[0031] (III) Beneficial effects

[0032] The present invention provides an elastic tire flap with deodorized mixed rubber and a manufacturing method thereof, which has the following beneficial effects:

[0033] 1. Adding deodorant to the formula is to remove odor, reduce emissions, and thus increase environmental performance. This will prevent the rubber tire belt from producing unpleasant odors during use, making it more friendly to the environment and users.

[0034] 2. Adding latex recycled rubber to the formula has the advantage of high elongation, which is superior to natural rubber and synthetic rubber, and its price is greatly reduced, only 1 / 3 of the unit price of natural rubber and synthetic rubber. By adding latex recycled rubber, not only the elongation and elasticity of the pad are increased, but also the cost is effectively compressed, which improves the market competitiveness of the product.

[0035] 3. Grind the rubber edges of the scraps from the pad into powder and add them into the formula to make mixed rubber. This design not only realizes the recycling of the scraps from the pad, reduces resource waste, reduces costs and environmental pollution, but also increases the elasticity of the pad.

[0036] 4. Through optimized manufacturing process, production efficiency is improved, energy consumption is reduced, and the stability of product quality is ensured. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1It is a schematic diagram of the manufacturing method of the present invention. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] Embodiment 1:

[0040] The embodiment of the present invention provides an elastic tire pad with deodorized mixed rubber, comprising the following raw materials in parts by weight: 100 parts of natural rubber, 30 parts of latex recycled rubber, 100 parts of desulfurized rubber powder, 20 parts of rubber edge powder of pad scraps, 5 parts of deodorizer, and 10 parts of additives.

[0041] The deodorant comprises the following raw materials in parts by weight: 2 parts of plant extract, 2 parts of spices, and 1 part of adsorbent. Specifically, the plant extract is green tea extract, the spices are natural spices, and the adsorbent is activated carbon.

[0042] Secondly, the auxiliary agent includes the following raw materials in parts by weight: 2 parts of accelerator, 2 parts of active agent, 2 parts of antioxidant, 2 parts of filler, and 2 parts of softener. Specifically, the accelerator is a vulcanization accelerator, the active agent is a combination of zinc oxide and stearic acid, the antioxidant is antioxidant 4010NA, the filler is calcium carbonate, and the softener is paraffin oil.

[0043] like Figure 1 As shown, the embodiment of the present invention also provides a method for manufacturing an elastic tire flap with a deodorized rubber compound, comprising the following steps:

[0044] Step 1: Raw material preparation:

[0045] Prepare raw materials in a certain proportion, including natural rubber, latex regenerated rubber, desulfurized rubber powder, rubber edge powder of padding strips, deodorizer and additives;

[0046] Step 2: Preliminary mixing:

[0047] The natural rubber and desulfurized rubber powder are added into an internal mixer for preliminary mixing, and auxiliary agents and deodorizers are added during the mixing process; wherein, the internal mixer temperature of the internal mixer is 100°C, the mixing time is 10 minutes, and the auxiliary agents and deodorizers are added at the 5th minute of mixing.

[0048] Step 3: Continue mixing:

[0049] Add latex reclaimed rubber and continue mixing. When adding latex reclaimed rubber and continue mixing, the temperature of the internal mixer is maintained at 120°C and the mixing time is 15 minutes.

[0050] Step 4: Make the rubber compound:

[0051] Add the rubber edge powder of the scraps of the pad belt and continue to mix to make a mixed rubber; when adding the rubber edge powder of the scraps of the pad belt for mixing, the temperature of the internal mixer is adjusted to 130°C, and the mixing time is 20 minutes;

[0052] Step 5: Molding and vulcanization:

[0053] The mixed rubber is molded and vulcanized to obtain a finished elastic tire flap; specifically, the mixed rubber is placed in a mold for molding, the molding pressure is 5MPa, and the molding time is 20 minutes; secondly, the molded product is placed in a vulcanization tank for vulcanization, the vulcanization temperature is 150°C, and the vulcanization time is 30 minutes, to obtain a finished elastic tire flap.

[0054] Embodiment 2:

[0055] The embodiment of the present invention provides an elastic tire pad with deodorized mixed rubber, comprising the following raw materials in parts by weight: 200 parts of natural rubber, 80 parts of latex recycled rubber, 150 parts of desulfurized rubber powder, 25 parts of rubber edge powder of pad scraps, 8 parts of deodorizer, and 15 parts of additives.

[0056] The deodorant comprises the following raw materials in parts by weight: 3 parts of plant extract, 3 parts of spices, and 2 parts of adsorbent. Specifically, the plant extract is green tea extract, the spices are natural spices, and the adsorbent is activated carbon.

[0057] Secondly, the auxiliary agent includes the following raw materials in parts by weight: 3 parts of accelerator, 3 parts of active agent, 3 parts of antioxidant, 3 parts of filler, and 3 parts of softener. Specifically, the accelerator is a vulcanization accelerator, the active agent is a combination of zinc oxide and stearic acid, the antioxidant is antioxidant 4010NA, the filler is talcum powder, and the softener is paraffin oil.

[0058] like Figure 1 As shown, the embodiment of the present invention also provides a method for manufacturing an elastic tire flap with a deodorized rubber compound, comprising the following steps:

[0059] Step 1: Raw material preparation:

[0060] Prepare raw materials in a certain proportion, including natural rubber, latex regenerated rubber, desulfurized rubber powder, rubber edge powder of padding strips, deodorizer and additives;

[0061] Step 2: Preliminary mixing:

[0062] The natural rubber and desulfurized rubber powder are added into an internal mixer for preliminary mixing, and auxiliary agents and deodorizers are added during the mixing process; wherein, the internal mixer temperature of the internal mixer is 110°C, the mixing time is 15 minutes, and the auxiliary agents and deodorizers are added at the 7th minute of mixing.

[0063] Step 3: Continue mixing:

[0064] Add latex reclaimed rubber and continue mixing. When adding latex reclaimed rubber and continue mixing, the temperature of the internal mixer is maintained at 125°C and the mixing time is 17 minutes.

[0065] Step 4: Make the rubber compound:

[0066] Add the rubber edge powder of the scraps of the pad belt and continue to mix to make a mixed rubber; when adding the rubber edge powder of the scraps of the pad belt for mixing, the temperature of the internal mixer is adjusted to 140°C, and the mixing time is 22 minutes;

[0067] Step 5: Molding and vulcanization:

[0068] The mixed rubber is molded and vulcanized to obtain a finished elastic tire flap; specifically, the mixed rubber is placed in a mold for molding, the molding pressure is 8MPa, and the molding time is 25 minutes; secondly, the molded product is placed in a vulcanization tank for vulcanization, the vulcanization temperature is 180°C, and the vulcanization time is 35 minutes, to obtain a finished elastic tire flap.

[0069] Embodiment three:

[0070] The embodiment of the present invention provides an elastic tire pad with deodorized mixed rubber, comprising the following raw materials in parts by weight: 300 parts of natural rubber, 100 parts of latex recycled rubber, 200 parts of desulfurized rubber powder, 30 parts of rubber edge powder of pad scraps, 10 parts of deodorizer, and 20 parts of additives.

[0071] The deodorant comprises the following raw materials in parts by weight: 4 parts of plant extract, 4 parts of spices, and 2 parts of adsorbent. Specifically, the plant extract is green tea extract, the spices are natural spices, and the adsorbent is activated carbon.

[0072] Secondly, the auxiliary agent includes the following raw materials in parts by weight: 4 parts of accelerator, 4 parts of active agent, 4 parts of antioxidant, 4 parts of filler, and 4 parts of softener. Specifically, the accelerator is a vulcanization accelerator, the active agent is a combination of zinc oxide and stearic acid, the antioxidant is antioxidant 4010NA, the filler is a mixture of calcium carbonate, talc, and mica powder, and the softener is paraffin oil.

[0073] like Figure 1 As shown, the embodiment of the present invention also provides a method for manufacturing an elastic tire flap with a deodorized rubber compound, comprising the following steps:

[0074] Step 1: Raw material preparation:

[0075] Prepare raw materials in a certain proportion, including natural rubber, latex regenerated rubber, desulfurized rubber powder, rubber edge powder of padding strips, deodorizer and additives;

[0076] Step 2: Preliminary mixing:

[0077] The natural rubber and desulfurized rubber powder are added into an internal mixer for preliminary mixing, and auxiliary agents and deodorizers are added during the mixing process; wherein, the internal mixer temperature of the internal mixer is 120°C, the mixing time is 20 minutes, and the auxiliary agents and deodorizers are added at the 10th minute of mixing.

[0078] Step 3: Continue mixing:

[0079] Add latex reclaimed rubber and continue mixing. When adding latex reclaimed rubber and continue mixing, the temperature of the internal mixer is maintained at 130°C and the mixing time is 20 minutes.

[0080] Step 4: Make the rubber compound:

[0081] Add the rubber edge powder of the scraps of the pad belt and continue to mix to make a mixed rubber; when adding the rubber edge powder of the scraps of the pad belt for mixing, the temperature of the internal mixer is adjusted to 150° C. and the mixing time is 25 minutes;

[0082] Step 5: Molding and vulcanization:

[0083] The mixed rubber is molded and vulcanized to obtain a finished elastic tire flap; specifically, the mixed rubber is placed in a mold for molding, the molding pressure is 10MPa, and the molding time is 30 minutes; secondly, the molded product is placed in a vulcanization tank for vulcanization, the vulcanization temperature is 200°C, and the vulcanization time is 30-40 minutes, to obtain a finished elastic tire flap.

[0084] Comparative Example:

[0085] An elastic tire pad with deodorized mixed rubber comprises the following raw materials in parts by weight: 100 parts of natural rubber, 100 parts of desulfurized rubber powder and 10 parts of additives.

[0086] Secondly, the auxiliary agent includes the following raw materials in parts by weight: 2 parts of accelerator, 2 parts of active agent, 2 parts of antioxidant, 2 parts of filler, and 2 parts of softener. Specifically, the accelerator is a vulcanization accelerator, the active agent is a combination of zinc oxide and stearic acid, the antioxidant is antioxidant 4010NA, the filler is calcium carbonate, and the softener is paraffin oil.

[0087] A method for manufacturing an elastic tire flap with a deodorized rubber compound comprises the following steps:

[0088] Step 1: Raw material preparation:

[0089] Prepare raw materials according to a certain proportion, including natural rubber, desulfurized rubber powder and additives;

[0090] Step 2: Mixing:

[0091] Add natural rubber and desulfurized rubber powder into an internal mixer for preliminary mixing, and add additives during the mixing process; wherein the internal mixer temperature is 100°C, the mixing time is 10 minutes, and the additives are added at the 5th minute of mixing;

[0092] Step 3: Molding and vulcanization:

[0093] The mixed rubber is molded and vulcanized to obtain a finished elastic tire flap; specifically, the mixed rubber is placed in a mold for molding, the molding pressure is 5MPa, and the molding time is 20 minutes; secondly, the molded product is placed in a vulcanization tank for vulcanization, the vulcanization temperature is 150°C, and the vulcanization time is 30 minutes, to obtain a finished elastic tire flap.

[0094] Experimental example:

[0095] The performance of the finished elastic tire fenders manufactured in Examples 1, 2, 3 and the comparative example was tested, and the results are shown in the following table:

[0096] Example Elongation at break (%) Tensile strength(MPa) odor Embodiment 1 451 9.21 No obvious odor Embodiment 2 467 9.54 No obvious odor Embodiment 3 459 9.35 No obvious odor Comparative Example 278 7.24 Has a pungent smell

[0097] According to the above table, the elastic tire flaps of Examples 1, 2, and 3 are superior to the control examples in terms of elongation at break and tensile strength, and have no obvious odor in the odor test, indicating that the addition of the deodorizing rubber compound effectively improves the performance and user experience of the product. By comparison, it can be seen that the specific raw material ratio and manufacturing process used in the embodiments of the present invention can significantly improve the physical properties of the tire flaps, and effectively remove or reduce odors, meeting the market demand for high-quality, environmentally friendly tire flaps. Therefore, the elastic tire flap with deodorizing rubber compound and its manufacturing method provided by the present invention have high practical value and market application prospects.

[0098] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An elastic tire flap with deodorized rubber compound, characterized in that: The invention comprises the following raw materials in parts by weight: 100-300 parts of natural rubber, 30-100 parts of latex regenerated rubber, 100-200 parts of desulfurized rubber powder, 20-30 parts of rubber edge powder of padding strip scraps, 5-10 parts of deodorant and 10-20 parts of auxiliary agent.

2. The elastic tire flap with deodorized rubber compound according to claim 1, characterized in that: The invention comprises the following raw materials in parts by weight: 200 parts of natural rubber, 80 parts of latex recycled rubber, 150 parts of desulfurized rubber powder, 25 parts of rubber edge powder of the lower scraps of the pad, 8 parts of deodorizer and 15 parts of auxiliary agent.

3. The elastic tire flap with deodorized rubber compound according to claim 2, characterized in that: The deodorant comprises the following raw materials in parts by weight: 2-4 parts of plant extract, 2-4 parts of spices, and 1-2 parts of adsorbent.

4. The elastic tire flap with deodorized rubber compound according to claim 3, characterized in that: The plant extract is green tea extract, the fragrance is natural fragrance, and the adsorbent is activated carbon.

5. The elastic tire flap with deodorized rubber compound according to claim 2, characterized in that: The auxiliary agent comprises the following raw materials in parts by weight: 2-4 parts of accelerator, 2-4 parts of active agent, 2-4 parts of antioxidant, 2-4 parts of filler and 2-4 parts of softener.

6. The elastic tire flap with deodorized rubber compound according to claim 5, characterized in that: The accelerator is a vulcanization accelerator, the active agent is a combination of zinc oxide and stearic acid, the antioxidant is antioxidant 4010NA, the filler is a mixture of one or more of calcium carbonate, talcum powder, and mica powder, and the softener is paraffin oil.

7. A method for manufacturing an elastic tire flap with a deodorized rubber compound, characterized in that: The following steps are involved: Step 1: Raw material preparation: Prepare raw materials in a certain proportion, the raw materials including natural rubber, latex regenerated rubber, desulfurized rubber powder, rubber edge powder of padding strips, deodorizer and additives; Step 2: Preliminary mixing: Add natural rubber and desulfurized rubber powder into an internal mixer for preliminary mixing, and add additives and deodorizer during the mixing process; Step 3: Continue mixing: Add latex reclaimed rubber and continue mixing; Step 4: Make the mixed rubber: Add the rubber edge powder of the lower scraps of the pad belt and continue to mix to make a mixed rubber; Step 5: Molding and vulcanization: The rubber mixture is molded and vulcanized to obtain the finished elastic tire flap.

8. The method for manufacturing an elastic tire flap with deodorized rubber compound according to claim 7, characterized in that: In step 2, the mixer temperature of the internal mixer is 100-120° C., the mixing time is 10-20 minutes, and the auxiliary agent and deodorant are added at the 5th to 10th minute of mixing.

9. The method for manufacturing an elastic tire flap with deodorized rubber compound according to claim 8, characterized in that: In step 3, when the latex regenerated rubber is added and the mixing is continued, the temperature of the internal mixer is maintained at 120-130° C. and the mixing time is 15-20 minutes.

10. The method for manufacturing an elastic tire flap with deodorized rubber compound according to claim 9, characterized in that: In step 4, when adding the rubber edge powder of the scraps from the pad belt for mixing, the temperature of the internal mixer is adjusted to 130-150° C. and the mixing time is 20-25 minutes.

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