Green and sustainable tire base rubber composition and preparation method

Abstract

A green and sustainable tire base rubber composition and a preparation method, relating to the technical field of tire production. The composition comprises a tire base. The tire base comprises 100 parts by weight of cis-1,4-polyisoprene, 20-40 parts by weight of bio-based carbon black, 0-20 parts by weight of bio-based silicon, 0-20 parts by weight of a silane coupling agent, 1-3 parts by weight of stearic acid, 2-7 parts by weight of zinc oxide, 0.5-2 parts by weight of a carbon black coupling agent, 1.5-3.5 parts by weight of the antioxidant 6PPD, 0.5-2 parts by weight of the antioxidant TMQ, 1.5-2 parts by weight of oil-extended sulfur powder, and 1.5-3.0 parts by weight of the accelerator CZ. The use of the carbon black coupling agent reduces the heat build-up of a rubber material, however, the Mooney viscosity of the rubber is significantly increased. Once a dedicated process has been used, the viscosity of the rubber material is controlled, and the tanδ value of the heat build-up of the rubber material at 60°C is significantly reduced, so that the rolling resistance of a tire is reduced, and the tire maintains good physical and mechanical properties.

Description

Green sustainable development tire base rubber composition and preparation method TECHNICAL FIELD

[0001] The present application relates to the tire production technical field, specifically a green sustainable development tire base rubber composition and preparation method. BACKGROUND

[0002] Automobile has become an indispensable part of human daily life, and is an important tool for industry, agriculture, transportation and new industry. As the only part in contact with the ground, the tire is one of the most important parts of the tens of thousands of parts of the car.

[0003] In recent years, in order to reduce the rolling resistance of tire base rubber, most of the tire rubber parts use less filler, use large particle size filler and nano silicon material, but these fillers are not renewable, on the one hand, it seriously affects the production process control and mechanical properties of the rubber, on the other hand, it can't meet the needs of future sustainable development.

[0004] Based on this, a green sustainable development tire base rubber composition and preparation method is provided, which can eliminate the disadvantages of the existing device. SUMMARY

[0005] The purpose of the present application is to provide a green sustainable development tire base rubber composition and preparation method to solve the problem that the existing tire filler is not renewable and can't meet the needs of future sustainable development.

[0006] To achieve the above purpose, the present application provides the following technical scheme:

[0007] A green sustainable development tire base rubber composition, comprising a tire base, the tire base comprising: 100 parts by weight of cis-1,4 polyisoprene, 20-40 parts by weight of bio-based carbon black, 0-20 parts by weight of bio-based silicon, 0-20 parts by weight of silane coupling agent, 1-3 parts by weight of stearic acid, 2-7 parts by weight of zinc oxide, 0.5-2 parts by weight of carbon black coupling agent, 1.5-3.5 parts by weight of antioxidant 6PPD, 0.5-2 parts by weight of antioxidant TMQ, 1.5-2 parts by weight of oil extended sulfur powder, 1.5-3.0 parts by weight of accelerator CZ.

[0008] On the basis of the above technical scheme, the present application further provides the following optional technical scheme:

[0009] In an optional scheme: the 20-40 parts by weight of bio-based carbon black is made of one or two of bio-based carbon black N326, N330 and N660.

[0010] In an alternative, the nitrogen adsorption specific surface area of the 0-20 parts by weight of the bio-based silica white carbon black is between 150-170 m2 / g, and the silica content of the 0-20 parts by weight of the bio-based silica reaches 90%.

[0011] The application also discloses a preparation method of the green and sustainable tire base rubber composition.

[0012] Step one: set the speed of the mixing roll of the internal mixer to 35-50 rpm, and the top plate pressure to 0.55 MPa, and add the natural rubber, silicone and carbon black, carbon black and silane coupling agent together, press the weight for 25-35 s, then lift the weight, clean for 5 s, then press the weight again to 140-150 DEG C, lift the weight, press the weight again to 155-165 DEG C, and discharge the rubber, to obtain a first-stage masterbatch which is cooled and stored;

[0013] Step two: set the speed of the mixing roll of the internal mixer to 30-40 rpm, and the top plate pressure to 0.55 MPa, and add the first-stage masterbatch prepared and stored for 4-72 h, zinc oxide, stearic acid and antioxidant together, press the weight for 20-35 s, then lift the weight, clean for 5 s, then press the weight again to 135-145 DEG C, and discharge the rubber, to obtain a second-stage masterbatch which is cooled and stored;

[0014] Step three: set the speed of the mixing roll of the internal mixer to 20-30 rpm, and the top plate pressure to 0.4 MPa, and add the second-stage masterbatch prepared and stored for 4-72 h, sulfur and accelerator together, press the weight for 20-25 s, then lift the weight, press the weight for 15-20 s, then lift the weight, press the weight to 100-110 DEG C, and discharge the rubber, to obtain an inventive mixture which is cooled and stored.

[0015] A mixer comprises a mixing chamber, a collecting box is fixedly connected to the lower surface of the mixing chamber through a support, a connecting plate is fixedly connected to the side wall of the collecting box, supporting rods are arranged on the lower surfaces of the collecting box and the connecting plate, discharge doors are rotationally connected to the opposite side walls of the mixing chamber through hinges, a top plate hole is formed in the top wall of the mixing chamber, a top plate is slidably connected to the inner side wall of the top plate hole, a feeding assembly is arranged on the upper surface of the mixing chamber to facilitate the feeding of mixing materials, a discharging assembly is arranged between the mixing chamber and the collecting box to facilitate discharging, a pushing assembly is arranged in the collecting box to facilitate the taking out of the mixed rubber, and a mixing assembly is arranged in the mixing chamber, the mixing assembly comprises a mixing roll, four slide plate grooves are formed in the opposite side walls of the mixing chamber, slide plates are slidably connected to the inner side walls of the four slide plate grooves, a third rotating shaft is rotationally connected to the opposite slide plates through bearings, and the part of the third rotating shaft located in the mixing chamber is fixedly connected with the mixing roll.

[0016] In an optional scheme, the outer side wall of the mixing chamber is rotatably connected with two second rotating shafts through bearings, the first synchronous pulleys are fixedly connected with the two second rotating shafts, the damping springs are fixedly connected between the slide plates and the inner side walls of the slide plate grooves, the outer side wall of the mixing chamber is rotatably connected with two first rotating shafts through bearings, the cams and the third synchronous pulleys are fixedly connected with the two first rotating shafts, the fixed rods are fixedly connected with the slide plate side walls close to the cams, the two cams are in abutment with the two fixed rods, and the two first synchronous pulleys are driven by the two third synchronous pulleys through synchronous belts.

[0017] In an optional scheme, the part of the third rotating shaft outside the mixing chamber is fixedly connected with a second synchronous pulley, the two second rotating shafts are fixedly connected with gears and fifth synchronous pulleys, the two gears are in meshing connection, the outer side wall of the mixing chamber is provided with two opposite second slide block grooves, the second slide blocks are slidably connected with the inner side walls of the two second slide block grooves, the fourth rotating shafts are rotatably connected with the side walls, away from the second slide block grooves, of the two second slide blocks through bearings, the second rotating shafts are fixedly connected with the two fourth rotating shafts, the damping springs are fixedly connected between the second slide blocks and the inner side walls of the second slide block grooves, the second synchronous pulley, the fourth synchronous pulley and the fifth synchronous pulley are driven by synchronous belts, the motor is fixedly connected with the outer side wall of the mixing chamber through a support, and the output end of the motor is fixedly connected with one of the second slide blocks.

[0018] In an optional scheme, the feeding assembly comprises a first hydraulic cylinder, the first hydraulic cylinder is fixedly connected with the support frame on the upper surface of the mixing chamber, and the output end of the first hydraulic cylinder is fixedly connected with the upper surface of the top plate.

[0019] In an optional scheme, the discharging assembly comprises baffles, third hydraulic cylinders and first slide blocks, the upper surface of the collecting box is provided with two third hydraulic cylinder grooves, the third hydraulic cylinders are fixedly connected with the inner side walls of the two third hydraulic cylinder grooves, the baffles are fixedly connected with the outer side walls of the two discharging doors, the first slide block grooves are formed in the side walls of the two baffles, the first slide blocks are slidably connected with the inner side walls of the two first slide block grooves, and the output end of the third hydraulic cylinder is rotatably connected with the side wall of the first slide block through a hinge.

[0020] In an optional scheme, the pushing assembly comprises second hydraulic cylinders and a push plate, the second hydraulic cylinders are fixedly connected with the upper surface of the connecting plate, the push plate is slidably connected with the inner side wall of the collecting box, and the output end of the second hydraulic cylinder extends through the collecting box and is fixedly connected with the side wall of the push plate.

[0021] Compared with the prior art, the application has the following beneficial effects:

[0022] The application uses carbon black coupling agent, the heat generation of the compound is reduced, the Mooney viscosity of the compound is obviously increased, the viscosity of the compound is controlled by using a special process, the heat generation of the compound is obviously reduced, the rolling resistance of the tire is reduced, and the physical and mechanical properties of the tire are good.

[0023] The mixer of the application drives the two first rotating shafts to rotate through the cooperation of the first synchronous pulley, the third synchronous pulley and the synchronous belt driven by the two second rotating shafts rotating in opposite directions, the first rotating shaft drives the two cams to rotate, the two cams abut against the fixed rod, under the action of the damping spring, the cam rotates to drive the two sliding plates to move transversely and reciprocally, the two sliding plates drive the two mixing rollers to move transversely and reciprocally through the third rotating shaft, so that the two mixing rollers are continuously squeezed to the middle during the process of rotating in opposite directions, thereby improving the mixing effect of the tire rubber. BRIEF DESCRIPTION OF DRAWINGS

[0024] Fig. 1 is a structural schematic view of the mixer of the application.

[0025] Fig. 2 is a first perspective view of the mixer of the application.

[0026] Fig. 3 is a schematic view of the unloading door of the application being opened.

[0027] Fig. 4 is a schematic view of the top plate of the application being opened.

[0028] Fig. 5 is a schematic view of the internal structure of the mixing box of the application.

[0029] Fig. 6 is an enlarged view of A in Fig. 4 of the application.

[0030] Fig. 7 is a schematic view of the pushing assembly structure of the application.

[0031] Fig. 8 is a schematic view of the unloading assembly structure of the application.

[0032] Fig. 9 is a first perspective view of the mixing assembly of the application.

[0033] Fig. 10 is a second perspective view of the mixing assembly of the application.

[0034] Marked annotations: 1 mixing box, 2 collecting box, 3 connecting plate, 4 first hydraulic cylinder, 6 second hydraulic cylinder, 7 top plate, 8 unloading door, 9 baffle, 10 push plate, 11 third hydraulic cylinder, 12 first sliding block, 13 mixing roller, 15 sliding plate, 16 fixed rod, 17 cam, 18 first rotating shaft, 19 second rotating shaft, 20 third rotating shaft, 21 fourth rotating shaft, 22 motor, 23 gear, 24 first synchronous pulley, 25 second synchronous pulley, 26 third synchronous pulley, 27 fourth synchronous pulley, 28 fifth synchronous pulley, 29 second sliding block. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application is further described in detail below in combination with the drawings and examples.

[0036] In one embodiment, as shown in FIGS. 1-10, a green and sustainable tire base rubber composition, comprising a tire base, the tire base comprising: 100 parts by weight of cis-1,4 polyisoprene, 20-40 parts by weight of bio-based carbon black, 0-20 parts by weight of bio-based silica, 0-20 parts by weight of silane coupling agent, 1-3 parts by weight of stearic acid, 2-7 parts by weight of zinc oxide, 0.5-2 parts by weight of carbon black coupling agent, 1.5-3.5 parts by weight of antioxidant 6PPD, 0.5-2 parts by weight of antioxidant TMQ, 1.5-2 parts by weight of oil-extended sulfur powder, 1.5-3.0 parts by weight of accelerator CZ.

[0037] In one embodiment, as shown in FIGS. 1-10, the 20-40 parts by weight of bio-based carbon black is made of one or two of bio-based carbon black N326, N330, N660.

[0038] In one embodiment, as shown in FIGS. 1-10, the 0-20 parts by weight of bio-based silica has a nitrogen adsorption specific surface area of 150-170 m2 / g, and the 0-20 parts by weight of bio-based silica has a silica content of 90%.

[0039] A method for preparing a green and sustainable tire base rubber composition, comprising the following steps:

[0040] Step one: set the speed of the mixing roll 13 of the internal mixer to 35-50 rpm, the pressure of the top plate 7 to 0.55 MPa, and add the natural rubber, silicone, and carbon black, carbon black and silane coupling agent together, press the weight 25-35 s, then lift the weight, clean for 5 s, then press the weight to 140-150 °C and lift the weight, then press the weight to 155-165 °C and discharge the gum, to prepare a first-stage masterbatch and cool and store it;

[0041] Step two: set the speed of the mixing roll 13 of the internal mixer to 30-40 rpm, the pressure of the top plate 7 to 0.55 MPa, and add the first-stage masterbatch prepared and stored for 4-72 h, zinc oxide, stearic acid, and antioxidants together, press the weight 20-35 s, then lift the weight, clean for 5 s, then press the weight to 135-145 °C and discharge the gum, to prepare a second-stage masterbatch and cool and store it;

[0042] Step three: set the speed of the mixing roll 13 of the internal mixer to 20-30 rpm, the pressure of the top plate 7 to 0.4 MPa, and add the second-stage masterbatch prepared and stored for 4-72 h, sulfur, and accelerators together, press the weight 20-25 s, then lift the weight, press the weight 15-20 s, then lift the weight, press the weight to 100-110 °C and discharge the gum, to prepare an inventive mixture and cool and store it.

[0043] In one embodiment, as shown in FIG. 1, FIG. 5, FIG. 9, it comprises a banbury mixer 1, the lower surface of the banbury mixer 1 is fixedly connected with a collecting box 2 through a support, the side wall of the collecting box 2 is fixedly connected with a connecting plate 3, the lower surface of the collecting box 2 and the connecting plate 3 is provided with a supporting rod, the opposite side walls of the banbury mixer 1 are rotatably connected with a discharge door 8 through a hinge, the top wall of the banbury mixer 1 is provided with a top plate hole, the inner side wall of the top plate hole is slidably connected with a top plate 7, the upper surface of the banbury mixer 1 is provided with a feeding assembly for conveniently feeding mixing materials, the banbury mixer 1 and the collecting box 2 are provided with a discharging assembly for conveniently discharging, the collecting box 2 is provided with a pushing assembly for conveniently taking out the mixed rubber, the banbury mixer 1 is provided with a mixing assembly, the mixing assembly comprises a mixing roller 13, the opposite side walls of the banbury mixer 1 are provided with four slide plate grooves opposite to each other, the inner side walls of the four slide plate grooves are slidably connected with a slide plate 15, the opposite two slide plates 15 are rotatably connected with a third rotating shaft 20 through a bearing penetrating therebetween, and the part of the third rotating shaft 20 located in the banbury mixer 1 is fixedly connected with the mixing roller 13.

[0044] In one embodiment, as shown in FIG. 6, FIG. 9, FIG. 10, the outer side wall of the banbury mixer 1 is rotatably connected with two second rotating shafts 19 through bearings, the two second rotating shafts 19 are fixedly connected with a first synchronous pulley 24, the slide plate 15 and the inner side wall of the slide plate groove are fixedly connected with a damping spring, the outer side wall of the banbury mixer 1 is rotatably connected with two first rotating shafts 18 through bearings, the two first rotating shafts 18 are fixedly connected with a cam 17 and a third synchronous pulley 26, the side walls of the two slide plates 15 close to the cam 17 are fixedly connected with a fixed rod 16, the two cams 17 are respectively abutted with the two fixed rods 16, and the two first synchronous pulleys 24 are respectively driven by the two third synchronous pulleys 26 through a synchronous belt. The two second rotating shafts 19 are reversely rotated to drive the two first rotating shafts 18 to rotate through the cooperation of the first synchronous pulley 24, the third synchronous pulley 26 and the synchronous belt, the first rotating shaft 18 drives the two cams 17 to rotate, the two cams 17 are abutted with the fixed rod 16, and under the action of the damping spring, the cam 17 drives the two slide plates 15 to move transversely and reciprocally, the two slide plates 15 drive the two mixing rollers 13 to move transversely and reciprocally through the third rotating shaft 20, so that the two mixing rollers 13 are constantly reciprocated and pressed to each other in the process of rotating and mixing in opposite directions, thereby improving the mixing effect of the tire rubber.

[0045] In one embodiment, as shown in FIG. 6, FIG. 9, FIG. 10, the third rotating shaft 20 is fixedly connected with the second synchronous pulley 25 outside the mixing chamber 1, both the second rotating shafts 19 are fixedly connected with the gear 23 and the fifth synchronous pulley 28, the two gears 23 are engaged, two opposite second sliding block grooves are arranged on the outer side wall of the mixing chamber 1, both the inner side walls of the two second sliding block grooves are slidably connected with the second sliding block 29, both the side walls of the two second sliding blocks 29 away from the second sliding block grooves are rotatably connected with the fourth rotating shaft 21 through the bearing, both the fourth rotating shafts 21 are fixedly connected with the second rotating shaft 19, the second sliding block 29 is fixedly connected with the inner side wall of the second sliding block groove through the damping spring, the second synchronous pulley 25, the fourth synchronous pulley 27 and the fifth synchronous pulley 28 are driven through the synchronous belt, the outer side wall of the mixing chamber 1 is fixedly connected with the motor 22 through the support, and the output end of the motor 22 is fixedly connected with one of the second sliding blocks 29. Start the motor 22, the motor 22 drives the second rotating shaft 19 to rotate, the two second rotating shafts 19 rotate in opposite directions through the engagement of the two gears 23, the two second rotating shafts 19 rotate in opposite directions through the fifth synchronous pulley 28 and the second synchronous pulley 25 to drive the two third rotating shafts 20 to rotate in opposite directions through the synchronous belt, and the two third rotating shafts 20 drive the two mixing rollers 13 to rotate in opposite directions, so that the material is mixed; through the cooperation of the fourth synchronous pulley 27, the second sliding block 29 and the damping spring, the synchronous belt between the second synchronous pulley 25 and the fifth synchronous pulley 28 is always kept tensioned.

[0046] In one embodiment, as shown in FIG. 4 and FIG. 5, the feeding assembly comprises a first hydraulic cylinder 4, the first hydraulic cylinder 4 is fixedly connected with the support frame on the upper surface of the mixing chamber 1, and the output end of the first hydraulic cylinder 4 is fixedly connected with the upper surface of the top plate 7. Start the first hydraulic cylinder 4 to open the top plate 7, which is convenient for feeding.

[0047] In one embodiment, as shown in FIG. 3 and FIG. 5, the discharging assembly comprises a baffle 9, a third hydraulic cylinder 11 and a first sliding block 12, two third hydraulic cylinder grooves are arranged on the upper surface of the collecting box 2, both the inner side walls of the two third hydraulic cylinder grooves are fixedly connected with the third hydraulic cylinder 11, both the outer side walls of the two discharge doors 8 are fixedly connected with the baffle 9, both the side walls of the two baffles 9 are provided with the first sliding block groove, both the inner side walls of the two first sliding block grooves are slidably connected with the first sliding block 12, and the output end of the third hydraulic cylinder 11 is rotatably connected with the side wall of the first sliding block 12 through the hinge. Start the two third hydraulic cylinders 11, the third hydraulic cylinder 11 drives the two discharge doors 8 to flip and open, which is convenient for the rubber material after mixing to fall into the collecting box 2 through its own gravity

[0048] In one embodiment, as shown in FIG. 2 and FIG. 7, the pushing assembly includes a second hydraulic cylinder 6 and a pushing plate 10, the second hydraulic cylinder 6 is fixedly connected to the upper surface of the connecting plate 3, the pushing plate 10 is slidably connected to the inner side wall of the collecting box 2, and the output end of the second hydraulic cylinder 6 extends through the collecting box 2 and is fixedly connected to the side wall of the pushing plate 10. Start the second hydraulic cylinder 6, the second hydraulic cylinder 6 drives the pushing plate 10 to move, and the rubber material is pushed out of the collecting box 2.

[0049] The above embodiment discloses a green and sustainable development tire base rubber composition and a preparation method:

[0050] Step one: set the speed of the mixing roll 13 of the internal mixer to 35-50 rpm, the pressure of the top plate 7 to 0.55 MPa, and add natural rubber, silicone, carbon black, carbon black and silane coupling agent at the same time. After pressing the weight for 25-35 s, the weight is lifted, the cleaning is performed for 5 s, and then the weight is pressed again to 140-150℃, the weight is lifted, and the rubber is discharged after being pressed again to 155-165℃. A segment of masterbatch is prepared and cooled and stored;

[0051] Step two: set the speed of the mixing roll 13 of the internal mixer to 30-40 rpm, the pressure of the top plate 7 to 0.55 MPa, and add the segment of masterbatch prepared and stored for 4-72 h, zinc oxide, stearic acid, and antioxidant at the same time. After pressing the weight for 20-35 s, the weight is lifted, the cleaning is performed for 5 s, and then the weight is pressed again to 135-145℃, the rubber is discharged, and a segment of masterbatch is prepared and cooled and stored;

[0052] Step three: set the speed of the mixing roll 13 of the internal mixer to 20-30 rpm, the pressure of the top plate 7 to 0.4 MPa, and add the segment of masterbatch prepared and stored for 4-72 h, sulfur, and accelerator at the same time. After pressing the weight for 20-25 s, the weight is lifted, the weight is pressed for 15-20 s, the rubber is discharged after being pressed to 100-110℃, and the invention mixture is prepared and cooled and stored.

[0053] After the tire rubber after mixing is calendered in a sheet form, the related samples for testing physical properties are formed, and after vulcanization at 150℃ for 30 minutes, the related physical and mechanical properties and dynamic properties are tested. The physical and mechanical properties are all performed in accordance with the national standards, the dynamic properties are obtained by temperature scanning using the dynamic viscoelasticity instrument produced by the German GABO company, the detection conditions are compression mode: dynamic strain is 5%, static strain is 0.2%, frequency is 10 Hz, and temperature rising speed is 2℃ / min.

[0054] After using the carbon black coupling agent, the heat generation of the rubber compound is reduced, but the Mooney viscosity of the rubber compound is obviously increased. After using the special process, the viscosity of the rubber compound is controlled, and the heat generation of the rubber compound is obviously reduced, and the tire rolling resistance is reduced, and the tire maintains good physical and mechanical properties.

[0055] Start the motor 22, the motor 22 drives the second rotating shaft 19, two second rotating shaft 19 through two gear 23 meshing reverse rotation, two second rotating shaft 19 reverse rotation through the fifth synchronous pulley 28 and the second synchronous pulley 25 with synchronous belt drive two third rotating shaft 20 reverse rotation, two third rotating shaft 20 reverse rotation drive two mixing roll 13 reverse rotation, the material is mixed;

[0056] Through the fourth synchronous pulley 27, the second slider 29 and the damping spring, the synchronous belt between the second synchronous pulley 25 and the fifth synchronous pulley 28 is always kept tensioned;

[0057] At the same time, two second rotating shaft 19 reverse rotation through the first synchronous pulley 24, the third synchronous pulley 26, the synchronous belt of cooperation drive two first rotating shaft 18 rotation, first rotating shaft 18 drive two cam 17 rotation, two cam 17 and fixed rod 16 abutment, under the action of damping spring, cam 17 rotation drive two slide plate 15 transverse reciprocating movement, two slide plate 15 through the third rotating shaft 20 drive two mixing roll 13 transverse reciprocating movement, so that two mixing roll 13 in the process of rotating mixing, constantly reciprocating to the middle of the squeeze, improve the mixing effect of tire rubber;

[0058] Start two third hydraulic cylinder 11, third hydraulic cylinder 11 drive two discharge door 8 overturn open, convenient mixing good rubber material through its own gravity drop into the collection box 2 in;

[0059] Start the second hydraulic cylinder 6, the second hydraulic cylinder 6 drive push plate 10 movement, push out the rubber material from the collection box 2.

[0060] The above, only for the specific implementation of the present application, but the protection scope of the present application is not limited to this, any skilled in the art of the technical personnel in the technical range of the present application, can easily think of changes or replacement, should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be limited by the protection scope of the claims.

Claims

1. A green and sustainable tyre base rubber composition comprising a tyre base, characterized in that, The tire base comprises: 100 parts by weight of cis-1,4 polyisoprene, 20-40 parts by weight of bio-based carbon black of the third rotation axis, 0-20 parts by weight of bio-based silicon, 0-20 parts by weight of silane coupling agent, 1-3 parts by weight of stearic acid, 2-7 parts by weight of zinc oxide, 0.5-2 parts by weight of carbon black coupling agent, 1.5-3.5 parts by weight of antioxidant 6PPD, 0.5-2 parts by weight of antioxidant TMQ, 1.5-2 parts by weight of oil-extended sulfur powder, 1.5-3.0 parts by weight of accelerator CZ.

2. A green and sustainable tyre based rubber composition as claimed in claim 1, wherein, The 20-40 parts by weight of bio-based carbon black is made of one or two of bio-based carbon black N326, N330 and N660.

3. A green and sustainable tyre based rubber composition as claimed in claim 2, wherein, The nitrogen adsorption specific surface area of the 0-20 parts by weight of bio-based silicon white carbon black is between 150-170 m2 / g, and the silica content of the 0-20 parts by weight of bio-based silicon reaches 90%.

4. A process for the preparation of a green and sustainable tyre base rubber composition as claimed in any one of claims 1 to 3, characterized in that, The method comprises the following steps: Step one: set the speed of the mixing roller (13) of the internal mixer to 35-50 rpm, the pressure of the top plate (7) to 0.55 MPa, and add natural rubber, silicone and carbon black, carbon black and silane coupling agent at the same time, press the weight for 25-35 s, then lift the weight, clean for 5 s, then press the weight again to 140-150℃, lift the weight, press the weight again to 155-165℃, discharge the glue, and obtain a first-stage masterbatch cooled and parked; Step two: set the speed of the mixing roller (13) of the internal mixer to 30-40 rpm, the pressure of the top plate (7) to 0.55 MPa, and add the first-stage masterbatch prepared and parked for 4-72 h, zinc oxide, stearic acid and antioxidants at the same time, press the weight for 20-35 s, then lift the weight, clean for 5 s, then press the weight again to 135-145℃, discharge the glue, and obtain a second-stage masterbatch cooled and parked; Step three: set the speed of the mixing roller (13) of the internal mixer to 20-30 rpm, the pressure of the top plate (7) to 0.4 MPa, and add the second-stage masterbatch prepared and parked for 4-72 h, sulfur and accelerators at the same time, press the weight for 20-25 s, then lift the weight, press the weight for 15-20 s, then lift the weight, press the weight to 100-110℃, discharge the glue, and obtain an inventive mixture cooled and parked.

5. An internal mixer according to claim 4, characterized in that Including the banbury mixer (1), the lower surface of the banbury mixer (1) is fixedly connected with the collecting box (2) through the support, the side wall of the collecting box (2) is fixedly connected with the connecting plate (3), the lower surface of the collecting box (2) and the connecting plate (3) is provided with the supporting rod, the opposite side wall of the banbury mixer (1) is rotatably connected with the discharge door (8) through the hinge, the top wall of the banbury mixer (1) is provided with the top plate hole, the inner side wall of the top plate hole is slidably connected with the top plate (7), the upper surface of the banbury mixer (1) is provided with the feeding assembly, for conveniently putting in mixing material, the discharge assembly is arranged between the banbury mixer (1) and the collecting box (2), for conveniently discharging, the collecting box (2) is provided with the pushing assembly, for conveniently taking out the mixed rubber, the banbury mixer (1) is provided with the banbury assembly, the banbury assembly comprises the banbury roller (13), the opposite side wall of the banbury mixer (1) is provided with four slide plate grooves, the inner side wall of the four slide plate grooves is slidably connected with the slide plate (15), the opposite two slide plates (15) are rotatably connected with the third rotating shaft (20) through the bearing penetrating, and the part of the third rotating shaft (20) in the banbury mixer (1) is fixedly connected with the banbury roller (13).

6. An internal mixer according to claim 5, characterized in that The outer side wall of the banbury mixer (1) is rotatably connected with two second rotating shafts (19) through the bearing, the first synchronous pulley (24) is fixedly connected on the two second rotating shafts (19), the damping spring is fixedly connected between the slide plate (15) and the inner side wall of the slide plate groove, the outer side wall of the banbury mixer (1) is rotatably connected with two first rotating shafts (18) through the bearing, the cam (17) and the third synchronous pulley (26) are fixedly connected on the two first rotating shafts (18), the side wall of the two slide plates (15) close to the cam (17) is fixedly connected with the fixed rod (16), the two cams (17) abut against the two fixed rods (16) respectively, and the two first synchronous pulleys (24) are driven by the synchronous belt and the two third synchronous pulleys (26) respectively.

7. An internal mixer according to claim 6, characterized in that The part of the third rotating shaft (20) outside the banbury mixer (1) is fixedly connected with the second synchronous pulley (25), the gear (23) and the fifth synchronous pulley (28) are fixedly connected on the two second rotating shafts (19), the two gears (23) are engaged, the outer side wall of the banbury mixer (1) is provided with two opposite second slide block grooves, the second slide block (29) is slidably connected on the inner side wall of the two second slide block grooves, the side wall away from the second slide block groove of the two second slide blocks (29) is rotatably connected with the fourth rotating shaft (21) through the bearing, the second rotating shaft (19) is fixedly connected on the two fourth rotating shafts (21), the damping spring is fixedly connected between the second slide block (29) and the inner side wall of the second slide block groove, the second synchronous pulley (25), the fourth synchronous pulley (27) and the fifth synchronous pulley (28) are driven by the synchronous belt, the motor (22) is fixedly connected on the outer side wall of the banbury mixer (1) through the support, and the output end of the motor (22) is fixedly connected with one of the second slide blocks (29).

8. An internal mixer according to claim 7, characterized in that The feeding assembly comprises a first hydraulic cylinder (4), the upper surface support frame of the mixing chamber (1) is fixedly connected with the first hydraulic cylinder (4), and the output end of the first hydraulic cylinder (4) is fixedly connected with the upper surface of the top plate (7).

9. An internal mixer according to claim 8, characterized in that The discharging assembly comprises a baffle (9), a third hydraulic cylinder (11) and a first sliding block (12), two third hydraulic cylinder grooves are formed in the upper surface of the collecting box (2), the inner side walls of the two third hydraulic cylinder grooves are fixedly connected with the third hydraulic cylinder (11), the outer side walls of the two discharging doors (8) are fixedly connected with the baffle (9), the side walls of the two baffles (9) are provided with the first sliding block grooves, the inner side walls of the two first sliding block grooves are slidably connected with the first sliding block (12), and the output end of the third hydraulic cylinder (11) is rotatably connected with the side wall of the first sliding block (12) through a hinge.

10. An internal mixer according to claim 9, characterized in that The pushing assembly comprises a second hydraulic cylinder (6) and a push plate (10), the upper surface of the connecting plate (3) is fixedly connected with the second hydraulic cylinder (6), the inner side wall of the collecting box (2) is slidably connected with the push plate (10), and the output end of the second hydraulic cylinder (6) extends through the collecting box (2) and is fixedly connected with the side wall of the push plate (10).

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