CN116061472A - A method for preparing self-repairing adhesive for high-viscosity tires and self-repairing adhesive - Google Patents

Abstract

The invention provides a method for preparing self-repairing adhesive for a high-viscosity tire and the self-repairing adhesive. The method comprises the following steps: uniformly mixing raw materials including raw rubber, carbon black, white carbon black, an anti-aging agent, a plasticizer, a crosslinking agent and a crosslinking auxiliary agent to obtain a mixed master batch; adding the obtained mixed master batch into a single-screw extruder or a conical double-screw extruder, preheating and pre-plasticizing, and then feeding into a parallel co-rotating double-screw extruder; and (3) melting tackifying resin, adding the melted tackifying resin into a feeding section of a double-screw extruder, adding polyisobutylene into the mixture for multiple times through a plurality of liquid injection ports on a machine barrel, and extruding the mixture to obtain the self-repairing adhesive for the high-viscosity tire. The self-repairing adhesive prepared by the invention is coated on the inner wall of a tire, has better fluidity and adhesion strength to the tire under the low temperature condition, and can keep better ageing resistance and tensile strength under the high temperature condition.

Description

A method for preparing self-repairing adhesive for high-viscosity tires and self-repairing adhesive

technical field

The invention relates to the field of rubber processing, in particular to a method for preparing a self-repairing rubber for high-viscosity tires and the self-repairing rubber.

Background technique

After the traditional tire is punctured, it will cause a blowout due to air leakage. As for run-flat tires, although they meet the minimum driving requirements of the vehicle and can be replaced in time under the condition of complete phosphogas leakage, run-flat tires are not only expensive, but also have poor performance and have disadvantages such as loud tire noise. Difficult to popularize.

A layer of self-repairing glue with "memory function" evenly coated on the inner wall of the tire, when it is pierced by a sharp object, the self-repairing glue inside the tire can still be maintained under high and low temperature conditions (-40°C ~ 120°C) Good viscosity, it will automatically adhere to the puncture to ensure no air leakage, and it has good adhesion to the inner layer of the tire, even if it is pierced by a sharp object, it will not affect driving safety; and when the sharp object is pulled out, the layer The self-repairing glue will automatically penetrate into the leaks of the tire under pressure, and solidify instantly to completely plug the leaks, so that the tires can be repaired automatically, and the repaired tires can still work normally.

However, in use, there is a problem that the self-repairing glue diffuses to the periphery because the viscosity is too low, and there is also a problem that the local self-repairing glue falls off from the tire surface due to poor adhesion, which needs to be improved.

At the same time, in order to improve the performance of self-repairing rubber, after the formula is improved, the existing problems in processing will be highlighted. Traditional rubber processing equipment is difficult to process rubber formula with too much liquid raw materials. It is necessary to improve the existing rubber processing equipment. Efficient mixing of rubber materials to ensure the performance of self-repairing adhesives.

Contents of the invention

In order to solve the technical problems in the prior art, the invention provides a method for preparing a self-repairing adhesive for high-viscosity tires and the self-repairing adhesive.

The purpose of the present invention is to overcome the deficiencies in the existing self-repairing adhesive preparation technology, and propose a method for rapidly preparing self-repairing adhesive for high-viscosity tires. By rationally designing the formula system, it is ensured that the final product can meet the requirements of various performances, and the use of The internal mixer prepares the solid mixing masterbatch, and then uses the screw extruder unit to realize the uniform mixing of the solid mixing masterbatch and high-volume liquid polyisobutylene, and obtains self-repairing rubber products with excellent performance through the control of process parameters.

One of the purposes of the present invention is to provide a method for preparing self-repairing glue for high-viscosity tires, comprising:

(1) uniformly mixing raw materials including raw rubber, carbon black, white carbon black, anti-aging agent, plasticizer, crosslinking agent and crosslinking auxiliary agent to obtain a mixing masterbatch;

(2) Add the mixed masterbatch obtained into a single-screw extruder or a conical twin-screw extruder, and after preheating and preplasticizing, send it into a parallel co-rotating twin-screw extruder;

(3) After melting the tackifying resin, add it to the feeding section of the twin-screw extruder, then add polyisobutylene several times through multiple liquid injection ports on the machine barrel, and obtain the high-viscosity self-repairing rubber for tires after extrusion.

In a preferred embodiment of the present invention,

The Mooney viscosity of the mixing masterbatch is 15-50, preferably 35-45; and/or,

The number average molecular weight of the polyisobutylene is 600-2500, preferably 800-1200; and/or,

The mass ratio of the mixing masterbatch to the tackifying resin is 1: (0.12-0.3), preferably 1: (0.15-0.2); and/or,

The mass ratio of mixing masterbatch to polyisobutylene is 1:(1.2-2.8); preferably 1:(1.6-2.6).

In a preferred embodiment of the present invention,

mixing the masterbatch in an internal mixer; and/or,

The tackifying resin is melted in the weightless side feeding extruder, and the weightless side feeding extruder and the second or third barrel of the feeding section of the parallel co-rotating twin-screw extruder pass through the melt gear pump connections; and/or,

The parallel co-rotating twin-screw extruder includes a feeding and conveying pre-mixing section, a mixing and kneading section, a compression exhaust section and an exhaust discharge section; and/or,

The polyisobutylene is added at a temperature of 55°C to 100°C, preferably 60°C to 85°C; and/or,

The temperature of the feeding and conveying pre-mixing section is 50°C to 95°C, preferably 60°C to 70°C; and/or,

The temperature of the mixing and kneading section is 55°C to 85°C, preferably 75°C to 85°C; and/or,

The temperature of the compression exhaust section is 80°C to 120°C, preferably 75°C to 85°C; and/or,

The residence time in the parallel co-rotating twin-screw extruder is 1 minute to 4 minutes, preferably 3 to 4 minutes.

In a preferred embodiment of the present invention,

There are 3 to 6 liquid injection ports, preferably 4 to 6 liquid injection ports, in the barrel of the feeding and conveying premixing section and the mixing and kneading section of the parallel twin-screw extruder; preferably, the first and second The first injection port is in the feeding and conveying pre-mixing section, and the two injection ports are separated by at least 1 section of the machine barrel; the third injection port is at the end of the feeding and conveying pre-mixing section or the mixing and mixing section, and the third injection port is connected to the second injection port. There are at least 2 barrels at intervals; further preferably, the fourth, fifth or sixth injection port is set in the mixing and kneading section.

In a preferred embodiment of the present invention,

The raw rubber is at least one of butyl rubber, natural rubber, isoprene rubber and thermoplastic elastomer;

The carbon black is commercial carbon black commonly used in the art, preferably at least one of N330, N234 or N550;

The silica is commercial silica commonly used in this field, preferably at least one of precipitated silica or fumed silica;

The anti-aging agent is an anti-aging agent commonly used in the art, preferably at least one of anti-aging agent 4020, anti-aging agent RD, and anti-aging agent 2246;

The tackifying resin is at least one of C5 resin, C9 resin, rosin, and terpene resin;

The plasticizer is a plasticizer commonly used in the art, preferably at least one of paraffin oil, naphthenic oil, and environmentally friendly aromatic oil;

The crosslinking agent is at least one of sulfur or organic peroxide;

The cross-linking aid is a common cross-linking aid in the field, preferably at least one of zinc oxide, accelerator DM, accelerator CZ, and accelerator NS.

In a preferred embodiment of the present invention,

The single-screw feeding extruder used is equipped with a forced pressing device, the compression ratio of the single-screw extruder is 1.05-2.5, and the temperature is 50°C-100°C; and/or,

The inside of the screw of the conical twin-screw feeding extruder used is heated by heat conduction oil, and the temperature is 60°C to 135°C.

In a preferred embodiment of the present invention,

The weight loss side feeding extruder is a single-screw extruder or a parallel co-rotating twin-screw extruder; and/or,

The temperature of the weight loss side feeding extruder is 90°C-150°C, preferably 120°C-150°C, and the outlet pressure is 1MPa-7Mpa, preferably 3MPa-5Mpa; and/or,

The number of barrels in the feeding and conveying pre-mixing section, mixing and kneading section, compression and exhaust section, and exhaust discharge section of the parallel co-rotating twin-screw extruder are respectively 4-10 sections, 3-8 sections, 1-2 2 knots, 1 knot, preferably 6-8 knots, 3-4 knots, 2 knots, 1 knot, respectively.

In a preferred embodiment of the present invention,

The screws of the parallel co-rotating twin-screw extruder are assembled from screw elements on a mandrel; and/or,

The screw elements of the feeding and conveying pre-mixing section are at least two of conveying elements, shearing elements, and meshing blocks; and/or,

The elements of the mixing and kneading section are at least two of conveying elements, shearing elements, meshing blocks, and toothed discs; and/or,

The compression exhaust section is at least one of a conveying element and a shearing element.

In a preferred embodiment of the present invention,

When polyisobutylene is added in three liquid injection ports, the mass ratio of adding in order is 1: (1.3~3): (1.5~10);

When polyisobutylene is added into 4 liquid injection ports, the mass ratio of adding in sequence is 1: (1.3~2.5): (1.5~6): (2~10);

When polyisobutylene is added in 5 liquid injection ports, the mass ratio of adding in order is 1: (1.1~2): (1.5~5): (2~8): (2.5~10);

When polyisobutylene is added in 6 liquid injection ports, the mass ratio of adding in sequence is 1: (1~2): (1.35~4): (1.5~6): (2~8): (2.5~10).

The second object of the present invention is to provide a self-repairing rubber for high-viscosity tires prepared by the above-mentioned method.

The present invention specifically can adopt following technical scheme:

Mix raw rubber, carbon black, white carbon black, anti-aging agent, plasticizer, cross-linking agent and cross-linking auxiliary agent in an internal mixer to prepare a mixing masterbatch with a Mooney viscosity of 15-50; mix 100 Add the mixed masterbatch in parts by weight to a single-screw feeding extruder or conical twin-screw feeding extruder. The masterbatch is butted into a parallel co-rotating twin-screw extruder, and 12 to 30 parts of tackifying resin is connected to the second or third barrel of the feeding section of the parallel co-rotating twin-screw extruder The loss-in-weight side feeding extruder is added quantitatively after melting, and the barrel of the pre-mixing section is controlled by parallel twin-screw extruder. There are three or four or five or six liquid injection ports, and the liquid metering and feeding device is sequential A total of 120-280 parts by weight of polyisobutylene PIB with a number-average molecular weight of 600-2500 is added, the temperature of adding PIB is controlled at 55-100°C, the temperature of the barrel in the feeding and conveying pre-mixing section is at 50-95°C, and then through the twin-screw In the mixing and mixing section (temperature 55-85°C) and compression exhaust section (temperature 80-120°C) of the extruder, after a residence time of 1-4 minutes, it is extruded through the exhaust discharge section and the head of the extruder. A self-repairing adhesive that is uniformly mixed, free of solid particles and bubbles is obtained.

The raw rubber used is preferably one or more mixtures of butyl rubber, natural rubber, isoprene rubber and thermoplastic elastomer.

The tackifying resin used is preferably one or more mixtures of C5 resin, C9 resin, rosin, and terpene resin.

The single-screw feeding extruder used is preferably equipped with a forced pressing device, the compression ratio of the single-screw extruder is preferably 1.05-2.5, and the temperature is preferably 50-100°C.

The inside of the screw of the conical twin-screw feeding extruder is preferably heated by heat conduction oil, and the temperature is preferably 60-135°C.

The weightless side-feeding extruder is preferably a single-screw extruder or a parallel co-rotating twin-screw extruder. The temperature of the extruder is preferably controlled at 90-150°C. The pressure is preferably between 1MPa and 7Mpa.

The number of barrels in the feeding section, conveying pre-mixing section, mixing and kneading section, compression exhaust section, and exhaust discharge section of the co-rotating twin-screw extruder are 2-3 sections, 4-10 sections, 3-8 sections, respectively. Sections, 1~2 sections, and 1 section are appropriate.

The screw of the co-rotating twin-screw extruder used is composed of screw elements on the mandrel. The screw elements in the feeding section are preferably two or three of the conveying element, the shearing element and the meshing block. The conveying pre-mixed The screw elements of the section are preferably two or three of the conveying elements, shearing elements and meshing blocks, and the original parts of the mixing and kneading section are preferably two of the conveying elements, shearing elements, meshing blocks and toothed discs , three or four, the compression and exhaust section is preferably one or two of the conveying element and the shearing element.

The ratio of polyisobutylene is preferably 1:1.3~3:1.5~10 when adding three liquid injection ports; the ratio when adding four liquid injection ports is preferably 1:1.3~2.5:1.5~6:2~10; When adding 5 liquid injection ports, the preferred ratio is 1:1.1～2:1.5～5:2～8:2.5～10; when adding 6 liquid injection ports, the preferred ratio is 1:1～2:1.35～ 4: 1.5～6: 2～8: 2.5～10.

Compared with prior art, the beneficial effect of the present invention:

By comparing and analyzing the current self-repairing adhesive products and the disclosed technical means, the key problems of the self-repairing adhesive products are: the self-repairing adhesive has high viscosity, poor fluidity, and poor high temperature resistance. The strength of the rubber compound becomes poor, reducing the adhesiveness of the rubber compound; in addition, the adhesion of the self-repairing rubber is not good, and the rubber material will fall off, turn over, shift and accumulate during the running of the tire. In order to solve the problems existing in the prior art, the present invention first adds a large amount of liquid polyisobutylene PIB with good airtightness, good fluidity and good compatibility with the rubber matrix from the design of the formula system, so as to ensure that the self-repairing glue is It still has good fluidity and tightness under low temperature conditions; a cross-linking system is added to the formula to make the self-repairing adhesive micro-cross-linked during the spraying process to form a certain degree of network structure, so that the self-repairing adhesive can withstand high temperature conditions It will not flow down; in addition, adding tackifying resin to the formula system to improve the adhesive performance, the addition of more tackifying resin will affect the use of existing rubber mixing equipment, such as internal mixer in the processing of solid mixing masterbatch Back-discharging, cutting, storage, etc. have a great impact, which is not conducive to the delivery and addition of the solid mixing masterbatch to the screw feeding extruder in the subsequent process. Mixing is carried out in the twin-screw extruder, and the resin solid particles are melted by the weight-loss side-feeding screw extruder, and then added into the twin-screw extruder in the form of melt, so that it can be mixed with the solid masterbatch quickly Mix evenly, solve the problems caused by the addition of a large amount of tackifying resin, such as difficult processing, difficult discharging, difficult packaging and operation, and difficult measurement in the pre-preparation and mixing masterbatch process; in addition, carbon black/white carbon is added to the formula system Black reinforcing agent and anti-aging agent ensure the tensile strength and anti-aging performance of the self-repairing adhesive. Now the attached self-repairing glue spreads to the periphery, causing viscosity problems; local self-repairing glue falls off from the tire surface, causing adhesion problems.

In addition, the self-repairing adhesive must be evenly coated on the inner side of the tire, and the self-repairing adhesive product has no obvious particles and no air bubbles, which is the prerequisite for achieving uniform coating of the self-repairing adhesive, that is, to ensure that the self-repairing adhesive is a homogeneous system. Due to the addition of more than 120 parts of PIB liquid in the formula system, it is difficult for traditional rubber processing equipment such as internal mixers and open mills to mix and process such a large amount of liquid and solid masterbatch, such as in internal mixers If a large amount of liquid is added to the internal mixer, it will cause slippage and be difficult to process, and even the material cannot be discharged from the internal mixer. Aiming at this formula system, the present invention adopts the linkage mixing equipment of a single-screw extruder and a twin-screw extruder, and matches a suitable process. First, on the basis of computer simulation calculations, through the design and combination of screw elements, the solid mixing masterbatch forms multiple changes in flow direction and flow velocity, and a twin-screw extruder that meets the requirements for rubber mixing and extrusion is designed, and through The screw configuration and combination, the temperature control of each section, the temperature control of solid masterbatch and liquid PIB, and the control of the amount of liquid PIB added in the process of mixing masterbatch, finally realized the high mixing ratio of liquid and solid mixing masterbatch Uniform mixing of rubber; through the study of the viscosity change of solid mixing masterbatch under different temperature and time conditions, the solid mixing masterbatch is preheated to a suitable viscosity in the first single-screw extruder; through different PIB Research on the effect of liquid addition on the viscosity of mixed masterbatches with different viscosities and temperatures, the uniform dispersion of PIB liquid in the continuous phase of mixed masterbatch during the mixing process and the controllability of viscosity evolution and distribution uniformity during extrusion Chemical technology research, designing and simulating the combination of screw elements in the feeding and conveying pre-mixing section of the twin-screw extruder and different injection liquid sections, so that a large amount of liquid can be uniformly mixed and dispersed in the rubber continuous phase during the progress of the solid mixing masterbatch , Gradually change the stroke viscosity gradient and compatibility, eliminate the existence of solid particles; at the same time, in the mixing and mixing section of the twin-screw extruder, further realize the distribution and mixing of materials to form a homogeneous system; On the one hand, the screw groove depth is reduced while mixing with the screw, and the gas in the material is discharged by exhausting while mixing; on the other hand, in the material discharge section, by increasing the lead and groove depth of the screw element , adopt the vacuum method to further extract the internal gas of the material and the power gas contained in the material transportation from the outside.

In addition, the entire preparation process of the present invention is simple, the existing rubber mixing equipment is still used in the stage of mixing masterbatch preparation, no new equipment investment is required, and single screw feeding is used in the mixing and mixing stage of mixing masterbatch and liquid The tandem screw extruder unit of pretreatment extruder and twin-screw mixing and venting extruder has short time and high efficiency, and the process is continuous and automatic, saving labor, and the production process is stable and controllable. Finally, the self-repairing rubber product obtained by using the present invention is not only uniformly mixed, free of particles and air bubbles, which is beneficial to the next coating process, but also has excellent performance after being coated on the inner wall of the tire: under low temperature conditions, it can still have better Fluidity and adhesion to tires; under high temperature conditions, it can still maintain good aging resistance and tensile strength without softening and flowing.

Detailed ways

The present invention is specifically described below in conjunction with specific embodiment, it is necessary to point out here that following embodiment is only used for the further description of the present invention, can not be interpreted as the restriction to protection scope of the present invention, those skilled in the art can understand the present invention according to the content of the present invention Some non-essential improvements and adjustments made by the invention still belong to the protection scope of the present invention.

The raw materials used in the examples are conventional commercially available raw materials.

The parts mentioned in the examples all refer to parts by weight.

Example 1

Mix butyl rubber, natural rubber, carbon black N330, white carbon black, anti-aging agent 4020, plasticizer paraffin oil, crosslinking agent sulfur and crosslinking aids in an internal mixer to prepare a compound with a Mooney viscosity of 45 Mix masterbatch.

Add 100 parts by weight of the prepared mixing masterbatch into a single-screw extruder with a diameter of 120 mm and a length-to-diameter ratio of 8:1 with a forced pressing device. The compression ratio of the single-screw extruder is 2.5 , the temperature is 100°C, the end of the single-screw extruder is connected with the rubber metering and conveying device, and the preheated and pre-plasticized mixing masterbatch is quantitatively butted into a parallel co-rotating twin-screw extruder (diameter 90mm, The length-to-diameter ratio is 68:1, 17-section barrel), and 15 parts by weight of C5 resin is extruded through a weightless side-feeding single-screw extruder connected to the second barrel of the parallel co-rotating twin-screw extruder feeding section. Extruder (diameter 50mm, length-diameter ratio 12:1) is added quantitatively after melting, the temperature of the side feeding extruder is controlled at 120°C, the outlet pressure is 5MPa, and the conveying pre-mixing section of the twin-screw extruder is 8 The screw element includes conveying elements, shearing elements and meshing blocks; the mixing and kneading section is 4 sections, and the elements are conveying elements, meshing blocks and toothed discs; the compression and exhaust section is 2 sections, and the elements are shear compression elements, The number of barrels in the exhaust discharge section is 1 section, and the barrel of the feeding and conveying premixing section of the twin-screw extruder has six liquid injection ports. The first and second injection ports are in the feeding and conveying premixing section. The two injection ports are separated by 1 section of machine barrel; the third injection port is at the end of the feeding and conveying premixing section, and the third injection port and the second injection port are separated by 2 sections of machine barrel; the fourth, fifth and sixth injection ports The entrance is set in the mixing and kneading section. A total of 260 parts by weight of polyisobutylene PIB with a number average molecular weight of 1200 is added successively through the liquid metering and feeding device. The ratio of the six liquid injection ports is 1:1.1:2.5:4:6:8. The feeding temperature of the inlet is 65°C, the feeding temperature of polyisobutylene at the 4th and 5th injection port is 75°C, the feeding temperature of the 6th injection port is 85°C, the temperature of the barrel in the feeding section is 60°C, and then through the twin-screw The mixing and mixing section (temperature 80°C) and the compression exhaust section (temperature 90°C) of the extruder, after a residence time of 4 minutes, are extruded through the discharge section and the head of the extruder to obtain the self-sealing rubber product.

The obtained sealant product has no particles, and it is magnified 30 times by a microscope. There are still no obvious solid particles. After 24 hours of parking, there are no obvious bubbles on the surface of the product. The adhesion strength at -40 ° C is 5% lower than that at 20 ° C. The adhesion strength The retention rate is good; under the condition of 150°C, the viscosity of the product is 2% lower than that at 20°C, the viscosity retention rate is good, and there is no softening and flowing phenomenon. In the subsequent spraying process, it is sprayed at 135°C, which can be evenly coated on the inside of the tire.

Example 2

The Mooney viscosity 35 mixed masterbatch.

Add 100 parts by weight of the prepared mixing masterbatch into a conical twin-screw feeding extruder, the temperature of the heat transfer oil inside the screw is 95°C, and the end of the conical twin-screw feeding extruder is connected to the rubber metering and conveying device , quantitatively butt the preheated and preplasticized mixing masterbatch into a parallel co-rotating twin-screw extruder (90mm in diameter, 52:1 in aspect ratio, 14 barrels), 20 parts by weight The C9 resin is quantified after melting through a weightless side-feeding twin-screw extruder (30 mm in diameter and 8:1 in length-to-diameter ratio) connected to the second barrel of the feeding section of the parallel co-rotating twin-screw extruder. Adding, the temperature of the side feeding extruder is controlled at 150°C, the outlet pressure is 3MPa, the feeding and conveying premixing section is 6 sections, and the screw element includes conveying elements, shearing elements and meshing blocks; the mixing and kneading section is 3 sections, The components are conveying elements, meshing blocks and toothed discs, the compression and exhaust section is 2 sections, the components use shear compression elements, the number of barrels in the exhaust and discharge section is 1 section, and the twin-screw extruder feeds and conveys the pre-mixing section There are five liquid injection ports in the barrel, the first and second injection ports are in the feeding and conveying pre-mixing section, and the two injection ports are separated by one section of the barrel; the third injection port is at the end of the feeding and conveying pre-mixing section, The third injection port is separated from the second injection port by 2 barrels; the fourth and fifth injection ports are set in the mixing section. A total of 180 parts by weight of polyisobutylene PIB with a number average molecular weight of 800 is added successively through the liquid metering and feeding device. The ratio of the five liquid injection ports is 1:1.5:3:5:10. The addition temperature is 60°C, the addition temperature of polyisobutylene at the last two injection ports is 70°C, the temperature of the barrel in the feeding section is 65°C, and then through the mixing section (temperature 85°C) of the twin-screw extruder, compression Exhaust section (temperature 100°C), after a residence time of 3 minutes, extrude through the discharge section and the head of the extruder to obtain the self-sealing product.

The resulting sealant product has no particles. It is magnified by a microscope 30 times, and there are still no obvious solid particles. After 24 hours of parking, there are no obvious bubbles on the surface of the product. The adhesion strength at -40 ° C is 2% lower than that at 20 ° C. The adhesion strength The retention rate is good; under the condition of 150°C, the viscosity of the product is 5% lower than that at 20°C, the viscosity retention rate is good, and there is no softening and flowing phenomenon. In the subsequent spraying process, it is sprayed at 130°C, which can be evenly coated on the inside of the tire.

Claims (10)

1. A method of preparing a self-repairing adhesive for a high-viscosity tire, the method comprising:

(1) Uniformly mixing raw materials including raw rubber, carbon black, white carbon black, an anti-aging agent, a plasticizer, a crosslinking agent and a crosslinking auxiliary agent to obtain a mixed master batch;

(2) Adding the obtained mixed master batch into a single-screw extruder or a conical double-screw extruder, preheating and pre-plasticizing, and then feeding into a parallel co-rotating double-screw extruder;

(3) And (3) melting tackifying resin, adding the melted tackifying resin into a feeding section of a double-screw extruder, adding polyisobutylene into the mixture for multiple times through a plurality of liquid injection ports on a machine barrel, and extruding the mixture to obtain the self-repairing adhesive for the high-viscosity tire.

2. The method of manufacturing according to claim 1, wherein:

the Mooney viscosity of the mixing master batch is 15-50, preferably 35-45; and/or the number of the groups of groups,

the polyisobutene has a number average molecular weight of 600 to 2500, preferably 800 to 1200; and/or the number of the groups of groups,

the mass ratio of the mixing master batch to the tackifying resin is 1: (0.12 to 0.3), preferably 1: (0.15-0.2); and/or the number of the groups of groups,

the mass ratio of the mixing master batch to the polyisobutene is 1: (1.2 to 2.8), preferably 1: (1.6-2.6).

3. The method of manufacturing according to claim 1, wherein:

mixing the master batch in an internal mixer; and/or the number of the groups of groups,

the tackifying resin is melted in a weight-loss-side feeding extruder, and the weight-loss-side feeding extruder is connected with a second section or a third section of machine barrel of a feeding section of the parallel homodromous double-screw extruder through a melt gear pump; and/or the number of the groups of groups,

the parallel homodromous double-screw extruder comprises a feeding and conveying premixing section, a mixing and mixing section, a compression exhaust section and an exhaust discharging section; and/or the number of the groups of groups,

the addition temperature of the polyisobutene is 55-100 ℃, preferably 60-85 ℃; and/or the number of the groups of groups,

the temperature of the feeding and conveying premixing section is 50-95 ℃, preferably 60-70 ℃; and/or the number of the groups of groups,

the temperature of the mixing section is 55-85 ℃, preferably 75-85 ℃; and/or the number of the groups of groups,

the temperature of the compressed exhaust section is 80-120 ℃, preferably 75-85 ℃; and/or the number of the groups of groups,

the residence time in the parallel co-rotating twin-screw extruder is from 1 to 4 minutes, preferably from 3 to 4 minutes.

4. A method of preparation as claimed in claim 3, wherein:

the feeding conveying premixing section and the mixing section of the parallel double-screw extruder are provided with 3-6 liquid injection ports, preferably 4-6 liquid injection ports; preferably, the first and second injection ports are spaced apart by at least 1 barrel in the feed delivery premixing section; the third injection port is arranged at the tail end of the feeding and conveying premixing section or the mixing and kneading section, and the third injection port is separated from the second injection port by at least 2 barrels; further preferably, the fourth, fifth or sixth injection port is provided in the mixing section.

5. The method of manufacturing according to claim 1, wherein:

the raw rubber is at least one of butyl rubber, natural rubber, isoprene rubber and thermoplastic elastomer; and/or the number of the groups of groups,

the tackifying resin is at least one of C5 resin, C9 resin, rosin and terpene resin; and/or the number of the groups of groups,

the white carbon black is at least one of precipitation white carbon black and gas phase white carbon black; and/or the number of the groups of groups,

the plasticizer is at least one of paraffin oil, naphthenic oil and environment-friendly aromatic oil; and/or the number of the groups of groups,

the cross-linking agent is at least one of sulfur or organic peroxide; and/or the number of the groups of groups,

the cross-linking auxiliary agent is at least one of zinc oxide, accelerator DM, accelerator CZ or accelerator NS.

6. The method of manufacturing according to claim 1, wherein:

the single screw feeding extruder is provided with a forced material pressing device, the compression ratio of the single screw extruder is 1.05-2.5, and the temperature is 50-100 ℃; and/or the number of the groups of groups,

the screw of the conical double-screw feeding extruder is internally provided with heat conducting oil for heating, and the temperature is 60-135 ℃.

7. A method of preparation as claimed in claim 3, wherein:

the weight loss side feeding extruder is a single-screw extruder or a parallel homodromous double-screw extruder; and/or the number of the groups of groups,

the temperature of the weight-loss side feeding extruder is 90-150 ℃, preferably 120-150 ℃, and the outlet pressure is 1-7 MPa, preferably 3-5 MPa; and/or the number of the groups of groups,

the quantity of the machine barrels of the feeding and conveying premixing section, the mixing section, the compression exhaust section and the exhaust discharging section of the parallel homodromous double-screw extruder is respectively 4-10 sections, 3-8 sections, 1-2 sections and 1 section, and is preferably respectively 6-8 sections, 3-4 sections, 2 sections and 1 section.

8. A method of preparation as claimed in claim 3, wherein:

the screws of the parallel homodromous double-screw extruder are formed by combining screw elements on a mandrel; and/or the number of the groups of groups,

the screw elements of the feeding, conveying and premixing section are at least two of conveying elements, shearing elements and meshing blocks; and/or the number of the groups of groups,

the elements of the mixing section are at least two of a conveying element, a shearing element, a meshing block and a toothed disc; and/or the number of the groups of groups,

the compressed exhaust section is at least one of a conveying element and a shearing element.

9. The method of manufacturing according to claim 4, wherein:

the adding mass ratio of polyisobutene to 3 liquid injection ports according to the sequence is 1: (1.3 to 3): (1.5-10);

the adding mass ratio of polyisobutene to 4 liquid injection ports according to the sequence is 1: (1.3-2.5): (1.5-6): (2-10);

the mass ratio of the polyisobutene added into the mixture through 5 liquid injection ports according to the sequence is 1: (1.1-2): (1.5-5): (2-8): (2.5-10);

the adding mass ratio of polyisobutene to 6 liquid injection ports according to the sequence is 1: (1-2): (1.35-4): (1.5-6): (2-8): (2.5-10).

10. A self-repairing adhesive for high-viscosity tires prepared by the method of any one of claims 1 to 9.