Sizing material composition containing recyclable reinforcing material and tire
By using a rubber composition with recyclable reinforcement materials to replace traditional petrochemical-based carbon black, the problem of large resource consumption in tire production is solved, the tire performance is maintained or improved, and the production goal of green and environmental protection is achieved.
Patent Information
- Application Number
- CN202510701183.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-28
- Publication Date
- 2025-08-12
AI Technical Summary
The traditional petrochemical-based carbon black reinforcement materials used in the production of existing tires consume a large amount of non-renewable resources, resulting in environmental problems, and the existing technology is difficult to replace these materials while ensuring tire performance.
The rubber composition is prepared through the BR Banbury refining mechanism to replace traditional petrochemical-based carbon black with a recyclable reinforcement material, including diene rubber rubber, reinforcement filler, plasticizer, porous structural nanomaterial, chemical anti-aging agent, protective wax and vulcanizing agent.
It achieves the maintenance or improvement of the mechanical strength and durability of the tire while reducing the use of traditional petrochemical-based carbon black, and meets the environmental protection requirements of sustainable development.
Smart Images
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Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of spraying, in particular to a rubber composition containing a recyclable reinforcing material and a tire. Background Art
[0002] With economic development and advancements in rubber product development technology, demand for tires for various motor vehicles and other transportation vehicles has increased significantly annually. Tens of millions of tons of rubber products are produced worldwide annually, nearly half of which are tires. Tires are a composite of rubber, fillers, and various additives, produced by mixing and processing a variety of chemical raw materials. The vast majority of these raw materials are petrochemical products, which are non-renewable resources.
[0003] In tire production, fillers reinforce and fill the rubber, ensuring it achieves the desired mechanical strength and performance. The most widely used traditional reinforcing material is process carbon black, produced through the incomplete combustion of petroleum products, asphalt, and coal tar at high temperatures. This consumes significant amounts of energy. Furthermore, with the substantial increase in tire production and usage, the depletion of non-renewable resources is a significant environmental concern.
[0004] To meet the broader demand for low-carbon, environmentally friendly, and green initiatives, and to respond to the national call for carbon peak and carbon neutrality, our company is researching the scrap tire recycling market and conducting research and testing on the application of recyclable reinforcement materials. To effectively implement green production, we prioritize research on areas where fillers are most commonly used, such as the tire rim and sidewall. The use of recyclable reinforcement materials cannot compromise tire performance; performance must be prioritized.
[0005] Based on this, a rubber composition and a tire containing a recyclable reinforcing material are now provided, which can eliminate the disadvantages of the existing devices. Summary of the Invention
[0006] The object of the present invention is to provide a rubber composition containing a recyclable reinforcing material and a tire, which solves the problem of inconvenience in use in the prior art.
[0007] To achieve the above object, the present invention provides the following technical solutions:
[0008] A rubber composition containing recyclable reinforcing materials. The rubber composition comprises the following raw materials in parts by weight relative to 100 parts by weight of a rubber component: 1-100 parts by weight of diene rubber, 30-60 parts by weight of a reinforcing filler, 1-20 parts by weight of a plasticizer, 1-5 parts by weight of stearic acid, 2-6 parts by weight of a porous structure nanomaterial, 1.5-8 parts by weight of a chemical antioxidant, 1-8 parts by weight of a protective wax, and 2-5 parts by weight of a vulcanizing agent.
[0009] On the basis of the above technical solutions, the present invention also provides the following optional technical solutions:
[0010] In an optional embodiment, the invention further comprises 0-50 parts by weight of a cis-1,4-polyisoprene polymer and 0-50 parts by weight of a polybutadiene polymer.
[0011] In an optional embodiment, the reinforcing filler is carbon black.
[0012] In an optional solution, the carbon black is one or a mixture of N300, N500, N600 series carbon black and bio-based carbon black.
[0013] In an optional solution, the plasticizer is one or a mixture of environmentally friendly cycloparaffin oil, environmentally friendly alkane oil, environmentally friendly aromatic oil, and bio-based oil.
[0014] In an optional solution, the reinforcing filler has an iodine absorption value of 70-100 g / kg and an oil absorption value of 65-7910 -5 m 3 / kg, external specific surface area is 51-6510 3 m 2 / kg.
[0015] In an optional solution, the vulcanizing agent is 1-2.5 parts by weight of oil-extended sulfur powder and 1-2.5 parts by weight of an accelerator.
[0016] A tire is made using the rubber composition.
[0017] Compared with the prior art, the present invention has the following beneficial effects:
[0018] The beneficial effect of the present invention is to reduce the use of traditional petrochemical-based carbon black reinforcing fillers through recyclable reinforcing materials to meet the challenges brought by sustainable development requirements without losing rubber compound performance. DETAILED DESCRIPTION
[0019] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described 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.
[0020] The rubber composition, as specified in Table 1, was prepared in a BR Banbury internal mixer using two separate mixing stages: a non-productive mixing stage and a productive mixing stage. The non-productive mixing stage lasted approximately 10 minutes, until the rubber and various fillers were uniformly mixed. The mixing method employed was standard in tire manufacturing, and the resulting mixture was recovered and cooled. In the productive stage, sulfur and an accelerator (sulfenamide) were added to an external mixer and mixed for a period sufficient to achieve a rubber temperature of 115°C.
[0021] The rubber compositions are referred to herein as Sample 1 and Sample 2. Sample 1 is used as a control sample, that is, the rubber composition does not contain the optimized rubber filler material and ratio.
[0022] All samples were vulcanized at about 151° C. for about 30 minutes. Table 2 shows the key performance index data of the vulcanized samples 1-2 of the above-mentioned mixed rubber compounds.
[0023] The hardness value is the modulus of the rubber under small deformation. The higher the value, the harder the rubber. The hardness requirement of the rubber is within a specific range.
[0024] Test the elongation value. The higher the value, the better the flexural resistance of the rubber compound.
[0025] Testing the 300% modulus stress value indicates the modulus value of the rubber under large deformation. The larger the value, the greater the cross-linking density and the better the filler effect. The rubber's demand for 300% modulus stress is within a specific range.
[0026] All samples were aged at about 100° C. for about 48 hours. Table 3 shows the physical properties of aged samples 1-2.
[0027] Table 1
[0028]
[0029] Table 2
[0030] 151℃*60min vulcanization 1 2 Hardness, ° 49.9 50.2 300% tensile strength, MPa 6.0 5.8 Elongation at break, % 598 611
[0031] Table 3
[0032]
[0033]
[0034] The results show that the mechanical properties of the rubber compounds using recycled reinforcement materials are comparable to those of rubber compositions using carbon black as a reinforcing filler.
[0035] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.
Claims
1. A rubber composition containing a recyclable reinforcing material, characterized in that: The rubber composition comprises the following raw materials by weight relative to 100 parts by weight of the rubber component: 1-100 parts by weight of diene rubber, 30-60 parts by weight of a reinforcing filler, 1-20 parts by weight of a plasticizer, 1-5 parts by weight of stearic acid, 2-6 parts by weight of a porous structure nanomaterial, 1.5-8 parts by weight of a chemical antioxidant, 1-8 parts by weight of a protective wax, and 2-5 parts by weight of a vulcanizing agent.
2. The rubber composition containing recyclable reinforcing material according to claim 1, characterized in that: It also includes 0-50 parts by weight of cis-1,4-polyisoprene polymer and 0-50 parts by weight of polybutadiene polymer.
3. The rubber composition containing recyclable reinforcing material according to claim 1, characterized in that: The reinforcing filler is carbon black.
4. The rubber composition containing recyclable reinforcing material according to claim 3, characterized in that: The carbon black is one or a mixture of N300, N500, N600 series carbon black and bio-based carbon black.
5. The rubber composition containing recyclable reinforcing material according to claim 1, characterized in that: The plasticizer is one or a mixture of environmentally friendly naphthenic oil, environmentally friendly alkane oil, environmentally friendly aromatic oil, and bio-based oil.
6. The rubber composition containing recyclable reinforcing material according to claim 1, characterized in that: The reinforcing filler has an iodine absorption value of 70-100 g / kg and an oil absorption value of 65-7910 -5 m 3 / kg, external specific surface area is 51-6510 3 m 2 / kg.
7. The rubber composition containing recyclable reinforcing material according to claim 1, characterized in that: The vulcanizing agent comprises 1-2.5 parts by weight of oil-extended sulfur powder and 1-2.5 parts by weight of an accelerator.
8. A tire made from the rubber composition according to any one of claims 1 to 7.