阅读说明：本技术 一种用于汽车轮胎安全升级的粘合剂及其制备方法 (Adhesive for safety upgrade of automobile tires and preparation method thereof ) 是由 邓京成 于 2021-05-24 设计创作，主要内容包括：本发明公开了一种用于汽车轮胎安全升级的粘合剂及其制备方法,本粘合剂对轮胎内壁橡胶具有极强的粘性和回弹性,且本粘合剂粘接的轮胎在环境温度在-20℃到-35℃条件下使用时不脆化、不开裂,在80℃到90℃高温条件下不流淌、不变质,能适应恶劣环境温度,因此本粘合剂能在-35℃-90℃之间仍保持优异的防扎防刺密封效果。(The invention discloses an adhesive for safe upgrade of automobile tires and a preparation method thereof, the adhesive has strong viscosity and rebound resilience to tire inner wall rubber, and tires bonded by the adhesive are not embrittled and cracked when used at the ambient temperature of-20 ℃ to-35 ℃, do not flow and deteriorate at the high temperature of 80 ℃ to 90 ℃, and can adapt to severe ambient temperature, so the adhesive can still keep excellent anti-prick and anti-prick sealing effects at the temperature of-35 ℃ to 90 ℃.)

1. The adhesive for the safety upgrade of the automobile tires is characterized in that every 100 parts by weight of the adhesive is composed of the following raw materials:

2. the adhesive for automobile tire safety upgrade according to claim 1, characterized in that: the main body resin is a mixture obtained by blending SBS, SIS and SEPS according to the weight ratio of 2:2: 1.

3. The adhesive for automobile tire safety upgrade according to claim 1, characterized in that: the plasticizer is naphthenic oil.

4. The adhesive for automobile tire safety upgrade according to claim 1, characterized in that: the tackifying resin is alicyclic petroleum resin.

5. The adhesive for automobile tire safety upgrade according to claim 1, characterized in that: the filler is lignin.

6. The adhesive for automobile tire safety upgrade according to claim 1, characterized in that: the toughening agent is ethylene propylene rubber.

7. The adhesive for automobile tire safety upgrade according to claim 1, characterized in that: the activating agent is a nano silicate mixture.

8. The adhesive for automobile tire safety upgrade according to claim 1, characterized in that: the coupling agent is a silane coupling agent.

9. The adhesive for automobile tire safety upgrade according to claim 1, characterized in that: the low-temperature auxiliary agent is bis (2-ethyl) hexyl peroxydicarbonate.

10. A method for preparing an adhesive for the safety upgrade of automobile tires according to any one of claims 1 to 9, characterized in that: the method comprises the following steps:

s1, accurately weighing the components in proportion, adding the main body resin and the high cohesion petroleum resin into a stirring reactor, sequentially adding the plasticizer, the filling material, the antioxidant, the toughening agent and the coupling agent, and stirring for 2-4 hours;

s2, adding tackifying resin, softening agent and activating agent into the composition at room temperature and normal pressure for three times, wherein the interval is 10 minutes each time, stirring and mixing for 5-10 minutes after all the components are added, and standing at 20-25 ℃;

s3, heating and melting, and stirring and reacting at the temperature of 180-220 ℃ for 2-8 hours;

s4, cooling to 25-30 ℃ after complete dissolution, and adding a low-temperature assistant;

s5, performing vacuum pumping on the mixture to eliminate bubbles;

s6, pressurizing and extruding to form the die;

s7, packaging the prepared composition to obtain the adhesive for automobile tire safety upgrade.

Technical Field

The invention relates to the technical field of wastewater treatment, in particular to an adhesive for safety upgrade of automobile tires and a preparation method thereof.

Background

With the popularization of the domestic use of Chinese automobiles, more and more accidents of the automobiles are caused by the safety problem of tires. And therefore the safety requirements for tires are increasing. The tyre safety technology is a tyre upgrading method for uniformly coating a leakage-proof protective layer on the inner wall of a tyre on the basis of not changing the original performance of the tyre, the protective layer material mainly comprises elastic rubber, tackifying resin and the like, the hardness of the protective layer material is between 20 and 25 of Shore A type, and the protective layer material has extremely high viscosity and rebound resilience. When the sharp object is inserted, the leak-proof tight-repairing layer can tightly wrap the sharp object, so that the leak-proof effect is achieved; when the sharp object is pulled out, the opening of the leak-proof mending layer can be automatically closed, the leak-proof mending layer at the opening is adhered by the viscosity, the puncture-proof mending layer can not only have the puncture-proof and leak-proof effects, but also have the effects of preventing bullets and buffering burst tires.

The existing automobile tire safety upgrading adhesive has greatly reduced toughness in a high-temperature environment and greatly reduced viscosity in a low-temperature environment, so that the performance of an automobile tire cannot be guaranteed.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides an adhesive for safely upgrading automobile tires and a preparation method thereof, which solve the technical problem that the performance of the adhesive is greatly reduced under severe conditions in the prior art.

The invention solves the technical problems through the following technical scheme, and the adhesive for the safety upgrade of the automobile tires comprises the following raw materials in parts by weight:

by adopting the technical scheme, the adhesive has extremely strong viscosity and rebound resilience to tire inner wall rubber, and the tire bonded by the adhesive is not embrittled and cracked when used at the ambient temperature of-20 ℃ to-35 ℃, does not flow and deteriorate at the high temperature of 80 ℃ to 90 ℃, and can adapt to severe ambient temperature, so that the adhesive has excellent anti-prick and anti-prick sealing effects at the temperature of-35 ℃ to-90 ℃.

Preferably, the main body resin is a mixture obtained by blending SBS, SIS and SEPS according to the weight ratio of 2:2: 1.

By adopting the technical scheme, SBS is a block copolymer of butadiene and styrene, SIS is a block copolymer of isoprene and styrene, both of which are thermoplastic elastomers with excellent performance, and the rubber can display the elasticity at normal temperature and can be plasticized and molded at high temperature; SEPS are saturated polyolefin elastomers with good weatherability.

Preferably, the plasticizer is naphthenic oil.

By adopting the technical scheme, the naphthenic oil as the plasticizer has good initial viscosity, long lasting adhesion time and high peel strength, and improves the surface wettability of the adhesive to the adhered material.

Preferably, the tackifying resin is a cycloaliphatic petroleum resin.

By adopting the technical scheme, the alicyclic petroleum resin has no double bonds in molecules, so that the alicyclic petroleum resin has good aging resistance.

Preferably, the filler is lignin.

By adopting the technical scheme, the lignin is a cross-linked phenol polymer, contains abundant aromatic ring structures, aliphatic and aromatic hydroxyl groups and quinone-based active groups, and has good cohesiveness, dispersibility and chelation as a filling agent.

Preferably, the toughening agent is ethylene propylene rubber.

By adopting the technical scheme, the ethylene propylene rubber has no double bonds on the molecular chain, becomes a saturated state, and has good ozone resistance, weather resistance, aging resistance and impact resistance.

Preferably, the activating agent is a nano silicate mixture.

By adopting the technical scheme, the nano silicate mixture has a layered silicate structure, and the mixing speed of the raw materials can be improved.

Preferably, the coupling agent is a silane coupling agent.

By adopting the technical scheme, the silane coupling agent obviously improves the bonding strength of each resin in the raw materials and other materials.

Preferably, the low-temperature auxiliary agent is bis (2-ethyl) hexyl peroxydicarbonate.

By adopting the technical scheme, the bis (2-ethyl) hexyl peroxydicarbonate can keep the toughness and the elasticity of the adhesive in a low-temperature state, and does not embrittle or crack.

The invention also discloses a preparation method of the adhesive for the safety upgrade of the automobile tire, which comprises the following steps:

s1, accurately weighing the components in proportion, adding the main body resin and the high cohesion petroleum resin into a stirring reactor, sequentially adding the plasticizer, the filling material, the antioxidant, the toughening agent and the coupling agent, and stirring for 2-4 hours;

s2, adding tackifying resin, softening agent and activating agent into the composition at room temperature and normal pressure for three times, wherein the interval is 10 minutes each time, stirring and mixing for 5-10 minutes after all the components are added, and standing at 20-25 ℃;

s3, heating and melting, and stirring and reacting at the temperature of 180-220 ℃ for 2-8 hours;

s4, cooling to 25-30 ℃ after complete dissolution, and adding a low-temperature assistant;

s5, performing vacuum pumping on the mixture to eliminate bubbles;

s6, pressurizing and extruding to form the die;

s7, packaging the prepared composition to obtain the adhesive for automobile tire safety upgrade.

Compared with the prior art, the adhesive has extremely strong viscosity and rebound resilience to tire inner wall rubber, and the tire bonded by the adhesive is not embrittled and cracked when used at the environmental temperature of-20 ℃ to-35 ℃, does not flow and deteriorate at the high temperature of 80 ℃ to 90 ℃, and can adapt to severe environmental temperature, so the adhesive has excellent anti-prick and anti-prick sealing effects at the temperature of-35 ℃ to 90 ℃.

Detailed Description

The technical solution of the present invention is further illustrated by the following examples.

Example 1, an adhesive for automobile tire safety upgrade, comprising a main resin prepared from BS, SIS, SEPS in a weight ratio of 2:2:1, naphthenic oil, alicyclic petroleum resin, a softening agent, high cohesion petroleum resin, an antioxidant, lignin, ethylene propylene rubber, nano silicate compound, a silane coupling agent, and bis (2-ethyl) hexyl peroxydicarbonate. The weight of each component per 100 parts by weight of the starting materials is shown in table one.

Example 2, an adhesive for safety upgrade of automobile tires, is different from example 1 in that the components and weights of the raw materials are shown in table one.

Example 3, an adhesive for safety upgrade of car tires, differs from example 1 in that the components and weights of the raw materials are as shown in table one.

Example 4, an adhesive for safety upgrade of car tires, differs from example 1 in that the components and weights of the raw materials are as shown in table one.

Example 5, an adhesive for safety upgrade of car tires, is different from example 1 in that the components and weights of the raw materials are shown in table one.

Comparative example 1, an adhesive for safety upgrade of automobile tires, is different from example 1 in that the components and weights of the raw materials are shown in table one.

Comparative example 2, an adhesive for safety upgrade of automobile tires, differs from example 1 in that the components and weights of the raw materials are as shown in table one.

Table one example shows the components and the proportion of the anticorrosive paint for the inner wall of the flue of the waste heat boiler per 100 parts by weight

The adhesives of the above examples and comparative examples were subjected to performance tests, which included tensile strength, tear strength and hot melt strength of the adhesives at-30 ℃ and 90 ℃, and the results of the performance tests of the adhesives obtained in the above examples are shown in Table II.

TABLE two or more Performance test results of the adhesives prepared in each of the examples and comparative examples

From the test results, the addition of the plasticizer into the adhesive can improve the peel strength of the adhesive, the addition of the tackifying resin can improve the weather resistance of the clay, the addition of the toughening agent can enable the adhesive to have good oxidation resistance, weather resistance, aging resistance and impact resistance, the addition of the coupling agent can improve the tensile strength of the adhesive, and the addition of the low-temperature auxiliary agent can enable the adhesive not to be embrittled under the low-temperature condition and keep good flexibility.

The adhesive has strong viscosity and rebound resilience to tire inner wall rubber, and the tire bonded by the adhesive is not brittle and cracked when used at the environmental temperature of-20 ℃ to-35 ℃, does not flow and deteriorate at the high temperature of 80 ℃ to 90 ℃, and can adapt to severe environmental temperature, so the adhesive has excellent anti-prick and anti-prick sealing effects at the temperature of-35 ℃ to 90 ℃.

Embodiment 6, a method for preparing an adhesive for safety upgrade of automobile tires, comprising the steps of:

s1, accurately weighing the components in proportion, adding the main body resin and the high-cohesion petroleum resin into a stirring reactor, sequentially adding the plasticizer, the filling material, the antioxidant, the toughening agent and the coupling agent, and stirring for 3 hours;

s2, adding tackifying resin, softening agent and activating agent into the composition at room temperature and normal pressure for three times, wherein each time interval is 10 minutes, stirring and mixing for 10 minutes after all the tackifying resin, the softening agent and the activating agent are added, and standing at 25 ℃;

s3, heating to melt, and stirring to react for 6 hours at 200 ℃;

s4, cooling to 30 ℃ after complete dissolution, and adding a low-temperature assistant;

s5, performing vacuum pumping on the mixture to eliminate bubbles;

s6, pressurizing and extruding to form the die;

s7, packaging the prepared composition to obtain the adhesive for automobile tire safety upgrade.

The adhesive prepared by the adhesive preparation method in the embodiment has the advantages of uniform mixing and long product storage time.

Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.