CN111777806A - Maintenance-free tire rubber material and preparation method thereof - Google Patents

Maintenance-free tire rubber material and preparation method thereof Download PDF

Info

Publication number
CN111777806A
CN111777806A CN202010707039.2A CN202010707039A CN111777806A CN 111777806 A CN111777806 A CN 111777806A CN 202010707039 A CN202010707039 A CN 202010707039A CN 111777806 A CN111777806 A CN 111777806A
Authority
CN
China
Prior art keywords
parts
carbon black
maintenance
agent
tire
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN202010707039.2A
Other languages
Chinese (zh)
Other versions
CN111777806B (en
Inventor
郑昌福
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sichuan Yuanxing Rubber Co Ltd
Original Assignee
Sichuan Yuanxing Rubber Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sichuan Yuanxing Rubber Co Ltd filed Critical Sichuan Yuanxing Rubber Co Ltd
Priority to CN202010707039.2A priority Critical patent/CN111777806B/en
Publication of CN111777806A publication Critical patent/CN111777806A/en
Application granted granted Critical
Publication of CN111777806B publication Critical patent/CN111777806B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
    • C08J9/06—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
    • C08J9/10—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing nitrogen, the blowing agent being a compound containing a nitrogen-to-nitrogen bond
    • C08J9/102—Azo-compounds
    • C08J9/103—Azodicarbonamide
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C1/00—Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
    • B60C1/0016—Compositions of the tread
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/0014—Use of organic additives
    • C08J9/0023—Use of organic additives containing oxygen
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/0014—Use of organic additives
    • C08J9/0028—Use of organic additives containing nitrogen
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/0014—Use of organic additives
    • C08J9/0033—Use of organic additives containing sulfur
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/0066—Use of inorganic compounding ingredients
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/009—Use of pretreated compounding ingredients
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/0095—Mixtures of at least two compounding ingredients belonging to different one-dot groups
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2203/00—Foams characterized by the expanding agent
    • C08J2203/04—N2 releasing, ex azodicarbonamide or nitroso compound
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2307/00—Characterised by the use of natural rubber
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
    • C08J2323/16—Ethene-propene or ethene-propene-diene copolymers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2407/00—Characterised by the use of natural rubber
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
    • C08J2423/16—Ethene-propene or ethene-propene-diene copolymers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
    • C08K13/06—Pretreated ingredients and ingredients covered by the main groups C08K3/00 - C08K7/00
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C08K2003/2296—Oxides; Hydroxides of metals of zinc
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00—Specific properties of additives
    • C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/02—Elements
    • C08K3/04—Carbon
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/02—Elements
    • C08K3/06—Sulfur
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/04—Oxygen-containing compounds
    • C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/16—Nitrogen-containing compounds
    • C08K5/17—Amines; Quaternary ammonium compounds
    • C08K5/18—Amines; Quaternary ammonium compounds with aromatically bound amino groups
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/16—Nitrogen-containing compounds
    • C08K5/34—Heterocyclic compounds having nitrogen in the ring
    • C08K5/3412—Heterocyclic compounds having nitrogen in the ring having one nitrogen atom in the ring
    • C08K5/3432—Six-membered rings
    • C08K5/3437—Six-membered rings condensed with carbocyclic rings
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/16—Nitrogen-containing compounds
    • C08K5/34—Heterocyclic compounds having nitrogen in the ring
    • C08K5/3467—Heterocyclic compounds having nitrogen in the ring having more than two nitrogen atoms in the ring
    • C08K5/3477—Six-membered rings
    • C08K5/3492—Triazines
    • C08K5/34924—Triazines containing cyanurate groups; Tautomers thereof
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/36—Sulfur-, selenium-, or tellurium-containing compounds
    • C08K5/45—Heterocyclic compounds having sulfur in the ring
    • C08K5/46—Heterocyclic compounds having sulfur in the ring with oxygen or nitrogen in the ring
    • C08K5/47—Thiazoles
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K7/00—Use of ingredients characterised by shape
    • C08K7/22—Expanded, porous or hollow particles
    • C08K7/24—Expanded, porous or hollow particles inorganic
    • C08K7/26—Silicon- containing compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K9/00—Use of pretreated ingredients
    • C08K9/04—Ingredients treated with organic substances
    • C08K9/06—Ingredients treated with organic substances with silicon-containing compounds
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
    • Y02T10/86—Optimisation of rolling resistance, e.g. weight reduction 

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Emergency Medicine (AREA)
  • Mechanical Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)

Abstract

The invention discloses a maintenance-free tire rubber material which comprises the following components in parts by weight: natural rubber: 30-70 parts of ethylene propylene diene monomer: 70-30 parts of carbon black: 5-25 parts of white carbon black: 45-35 parts of zinc oxide: 2-3 parts of stearic acid: 1-1.5 parts of an anti-aging agent: 0.5-1.5 parts of accelerator: 0.1-0.6 parts of sulfur: 0.5-1.0 part of foaming agent: 2-3.0 parts of foaming auxiliary agent: 1.0-1.5 parts of super silane: 5-8% of white carbon black. The sum of the use amounts of the natural rubber and the ethylene propylene diene monomer is 100 parts. The tire rubber material has the advantages of low compression heat generation, better rebound resilience and less abrasion; the invention adopts the raw materials with low heat generation, high ground gripping and low rolling resistance and is matched with reasonable combination component design, thereby greatly reducing the hidden troubles to processors and users in the production and use processes, and having wider safety, economy and adaptability of the product.

Description

Maintenance-free tire rubber material and preparation method thereof
Technical Field
The invention relates to a tire technology, in particular to a maintenance-free tire rubber material and a preparation method thereof.
Background
The tire is formed by combining a plurality of materials, and the current tire is generally a tire with an inner tube or a tubeless tire, a solid tire or a porous solid tire. The prior pneumatic tire is easy to puncture in the using process, and is easy to explode after puncture, slow in air leakage and the like, so that the tire with an inner tube or without the inner tube can be continuously driven by repairing the punctured tire. The other type of tire is a solid tire, and the solid tire or the porous solid tire does not need to be inflated, so the solid tire or the porous solid tire cannot be exploded due to puncture, and although the tire can continue to run after being punctured, most of solid tires have overlarge weight, high hardness, poor ground gripping performance in the running process and long braking distance, so the application of the solid tire is limited. The maintenance-free tire refers to a tire which can continuously run without being repaired after being punctured by a tire with an inner tube or a tire without an inner tube, and the tire also needs to meet the comfort, meet the performances of low heat generation, high resilience, low abrasion and the like, and is more economic and safe.
Nowadays, the society and economy are rapidly developing, and the maintenance-free property of the tire becomes the development trend of the tire industry. At present, in the tire industry, the requirements of meeting the maintenance-free requirement, meeting the requirements of low heat generation, high resilience and low abrasion performance and obtaining better results in the material cost and the processing cost of tires are always the direction of industry development and research.
Disclosure of Invention
The invention discloses a maintenance-free tire rubber material and a preparation method thereof according to the defects of the prior art. The invention aims to solve the first problem of providing a tire tread rubber material combination which can meet the maintenance-free requirement of a tire, meet the comfortableness, meet the requirements of high ground gripping, low rolling resistance and more economy and safety, and the second problem of the invention is to provide a preparation method of the tire tread rubber material.
In order to solve the technical problem, one embodiment of the present invention adopts the following technical solutions:
the maintenance-free tire rubber material comprises the following components in parts by weight: natural rubber: 30-70 parts of ethylene propylene diene monomer: 70-30 parts of carbon black: 5-25 parts of white carbon black: 45-35 parts of zinc oxide: 2-3 parts of stearic acid: 1-1.5 parts of an anti-aging agent: 0.5-1.5 parts of accelerator: 0.1-0.6 parts of sulfur: 0.5-1.0 part of foaming agent: 2-3.0 parts of foaming auxiliary agent: 1.0-1.5 parts of super silane: 5-8% of white carbon black. The sum of the use amounts of the natural rubber and the ethylene propylene diene monomer is 100 parts.
The further technical scheme is that the maintenance-free tire rubber material comprises the following components in parts by weight: natural rubber: 60 parts of ethylene propylene diene monomer: 40 parts of carbon black: 15 parts of white carbon black: 40 parts, zinc oxide: 3 parts, stearic acid: 1.5 parts, 1.5 parts of anti-aging agent, accelerator: 0.6 part, sulfur: 0.8 part, foaming agent: 2.5 parts of foaming auxiliary agent: 1.2 parts, super silane: 5-8% of white carbon black.
The further technical scheme is that the foaming agent used by the maintenance-free tire rubber material is an AC foaming agent; the foaming auxiliary agent is TAIC.
The anti-aging agent used by the maintenance-free tire rubber material is a mixture of anti-aging agents 4020 and RD;
the accelerator is a mixture of accelerator CZ and accelerator NS.
The carbon black used in the maintenance-free tire compound is N234.
The preparation method of the maintenance-free tire rubber material comprises the following steps:
(1) mixing ethylene propylene diene monomer rubber and carbon black in an internal mixer for 240 seconds to prepare carbon black master batch, and standing for more than 2 hours;
(2) plasticating carbon black master batch in an internal mixer for 30 seconds, adding white carbon black, zinc oxide, stearic acid, an anti-aging agent and super silane, and mixing in the internal mixer for 120 seconds to prepare rubber compound;
(3) standing the mixed rubber for more than 4 hours, and then adding an accelerator, sulfur and an AC foaming agent on an open mill for mixing to obtain the maintenance-free tire rubber material.
When the white carbon black and the carbon black are used together, the super silane is used in the formula, and great help is provided for reducing the heat generation and rolling resistance of the tire. The super silane can react with the hydroxyl on the surface of the white carbon black, so that the dispersibility of the white carbon black is improved.
Although the use of the super silane improves the dispersibility of the carbon black and the white carbon black, so that the heat generation and rolling resistance of the tire are reduced compared with a formula without the super silane, the material has poor resilience, the Akron abrasion does not reach the ideal state of a maintenance-free tire, and the heat generation of the tire under compression is high. Under the premise of combined use of the AC foaming agent and the super silane, the use of the TAIC further improves the mechanical properties of the tire, including strength, 100% stress at definite elongation and elongation, and the heat generation of the tire in compression is obviously reduced, the rebound resilience is obviously improved, and the abrasion is also obviously reduced. The tire has better resilience by using the foaming agent and the foaming auxiliary agent, but the TAIC foaming auxiliary agent and the super silane are matched with the AC foaming agent, so that the tire has better resilience, the strength of the tire is obviously improved, and the abrasion is reduced. According to the invention, the AC foaming agent, the TAIC foaming auxiliary agent and the super silane are used together, so that the abrasion is further reduced, the rebound resilience is improved, and the compression heat generation is also obviously reduced.
The super silane is a commercial super silane raw material, such as NXT super silane.
The tire rubber material has the advantages of low compression heat generation, better rebound resilience and less abrasion; the invention adopts the raw materials with low heat generation, high ground gripping and low rolling resistance and is matched with reasonable combination component design, thereby greatly reducing the hidden troubles to processors and users in the production and use processes, and having wider safety, economy and adaptability of the product.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below by way of examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1
Preparing raw materials in parts by weight as follows:
natural rubber SVR 3L: 30 parts of (1);
ethylene propylene diene monomer EPDM 4045: 70 parts of (B);
carbon black N234: 15 parts of (1);
white carbon black: 40;
zinc oxide: 2.5 parts;
stearic acid: 1.5 parts;
anti-aging agent 4020: 1 part;
accelerator CZ: 0.6 part;
sulfur: 0.85 part;
foaming agent AC: 2.5 parts;
foaming aid TAIC: 1.1 parts;
NXT super silane: 3.2 parts (8% of white carbon).
And (3) mixing the ethylene propylene diene monomer rubber and the natural rubber with carbon black in an internal mixer for 240 seconds to prepare carbon black master batch, and standing for more than 2 hours. Plasticating the carbon black master batch in an internal mixer for 30 seconds, adding the white carbon black, the zinc oxide, the stearic acid, the anti-aging agent and the super silane, and mixing in the internal mixer for 120 seconds to prepare the rubber compound. Standing the mixed rubber for more than 4 hours, and then adding an accelerator, sulfur, an AC foaming agent and a TAIC foaming auxiliary agent on an open mill for mixing to obtain the maintenance-free tire rubber material.
Example 2
Preparing raw materials in parts by weight as follows:
natural rubber SVR 3L: 70 parts of (B);
ethylene propylene diene monomer EPDM 4045: 30 parts of (1);
carbon black N234: 15 parts of (1);
white carbon black: 40 portions of
Zinc oxide: 2.5 parts;
stearic acid: 1.5 parts;
anti-aging agent 4020: 1 part;
accelerator CZ: 0.6 part;
sulfur: 0.85 part;
foaming agent AC: 2.5 parts;
TAIC: 1.5 parts;
NXT super silane: 2.0 parts (5% of white carbon black);
the preparation method is the same as that of example 1, and the maintenance-free tire rubber material is obtained.
Example 3
Preparing raw materials in parts by weight as follows:
natural rubber SVR 3L: 60 parts;
ethylene propylene diene monomer EPDM 4045: 40 parts of a mixture;
carbon black N234: 15 parts of (1);
white carbon black: 40 portions of
Zinc oxide: 3 parts of a mixture;
stearic acid: 1.5 parts;
anti-aging agent 4020: 1.4 parts; anti-aging agent RD: 0.1 part;
accelerator CZ: 0.5 part; and (2) an accelerator NS: 0.1 part;
sulfur: 0.8 part;
foaming agent AC: 2.5 parts;
TAIC: 1.2 parts;
NXT super silane: 2.4 parts (6% of white carbon).
The preparation method is the same as that of example 1, and the maintenance-free tire rubber material is obtained.
Comparative example 1
Preparing raw materials in parts by weight as follows:
natural rubber SVR 3L: 60 parts; ethylene propylene diene monomer EPDM 4045: 40 parts of a mixture; carbon black N234: 15 parts of (1); white carbon black: 40 parts of zinc oxide: 3 parts of a mixture; stearic acid: 1.5 parts; anti-aging agent 4020: 1.4 parts; anti-aging agent RD: 0.1 part; accelerator CZ: 0.5 part; and (2) an accelerator NS: 0.1 part; sulfur: 0.8 part; foaming agent AC: 2.5 parts; TAIC: 1.2 parts; SI69 general silane: 2.4 parts (6% of white carbon).
The raw material types and amounts were the same as in example 3, except that the silane type used was different from that of example 3. The procedure is as in example 1 to give a tire compound.
Comparative example 2
Preparing raw materials in parts by weight as follows:
natural rubber SVR 3L: 60 parts; ethylene propylene diene monomer EPDM 4045: 40 parts of a mixture; carbon black N234: 15 parts of (1); white carbon black: 40 parts of zinc oxide: 3 parts of a mixture; stearic acid: 1.5 parts; anti-aging agent 4020: 1.4 parts; anti-aging agent RD: 0.1 part; accelerator CZ: 0.5 part; and (2) an accelerator NS: 0.1 part; sulfur: 0.8 part; foaming agent H: 2.5 parts; TAIC: 1.2 parts; super silane: 2.4 parts (6% of white carbon).
The raw material types and amounts were the same as in example 3, except that the blowing agent type was different from that in example 3. The procedure is as in example 1 to give a tire compound.
Comparative example 3
Natural rubber SVR 3L: 60 parts; ethylene propylene diene monomer EPDM 4045: 40 parts of a mixture; carbon black N234: 15 parts of (1); white carbon black: 40 parts of zinc oxide: 3 parts of a mixture; stearic acid: 1.5 parts; anti-aging agent 4020: 1.4 parts; anti-aging agent RD: 0.1 part; accelerator CZ: 0.5 part; and (2) an accelerator NS: 0.1 part; sulfur: 0.8 part; foaming agent OBSH: 2.5 parts; TAIC: 1.2 parts; super silane: 2.4 parts (6% of white carbon).
The raw material types and amounts were the same as in example 3, except that the blowing agent type was different from that in example 3. The procedure is as in example 1 to give a tire compound.
Comparative example 4
Natural rubber SVR 3L: 60 parts; ethylene propylene diene monomer EPDM 4045: 40 parts of a mixture; carbon black N234: 15 parts of (1); white carbon black: 40 parts of zinc oxide: 3 parts of a mixture; stearic acid: 1.5 parts; anti-aging agent 4020: 1.4 parts; anti-aging agent RD: 0.1 part; accelerator CZ: 0.5 part; and (2) an accelerator NS: 0.1 part; sulfur: 0.8 part; foaming agent AC: 2.5 parts; super silane: 2.4 parts (6% of white carbon).
The raw material types and amounts were the same as in example 3, except that no TAIC blowing agent was used. The procedure is as in example 1 to give a tire compound.
The performance of the examples and comparative examples was tested according to the requirements and test methods of the following national standards:
shore hardness: GB/T9867-;
strength, elongation, deformation: GB/T528-2009;
rebound resilience: GB 1681-;
abrasion: GB/T9867-.
Compression heat generation: GB/T1687 1993.
The test results of examples 1-3 and comparative examples 1-4 are shown in Table 1.
TABLE 1 results of tire performance tests made with materials of examples and comparative examples
Figure BDA0002595194610000071
Figure BDA0002595194610000081
As can be seen from Table 1, the properties are better with the compound AC + TAIC + supersilane than with comparative examples 1 to 4, and it is remarkable that the strength is high, the heat generation under compression is low, the resilience is good, the abrasion is low, and the materials of examples 1 to 3 can satisfy these advantages at the same time as compared with comparative examples 1 to 4. The synergistic effect of the three materials of AC + TAIC + super silane is best.
Carrying out real vehicle verification:
and (3) pricking 5 holes with the depth of 20mm in the circumferential direction of the finished product by using iron nails with the diameters of 12-18 mm. A vehicle is fixed, the load is fixed at 100Kg, and the change of the finished product is observed according to the running speed of 50Km at 60 Km/h.
Two hour test was stopped after driving: the size of the outer edge is increased or reduced, and the size of the punctured hole is enlarged, which is not in accordance with the use requirement of the tire.
And (3) verification and comparison:
example 1 to example 3: after the automobile runs, the appearance size is not changed, and the holes are not enlarged.
Comparative example 1: the appearance size after driving is the same as: the circumference is reduced by 25mm, the width of the break is reduced by 4mm, and the hole is enlarged by 3 mm.
Comparative example 2: the appearance size after driving is the same as: the circumference is reduced by 30mm, the width of the break is reduced by 4mm, and the hole is enlarged by 4.5 mm.
Comparative example 3: the appearance size after driving is the same as: the circumference is reduced by 26mm, the width of the cut is reduced by 3.5mm, and the hole is enlarged by 3.5 mm.
Comparative example 4: the appearance size after driving is the same as: the circumference is reduced by 18mm, the width of the break is reduced by 3mm, and the hole is enlarged by 3 mm.
As seen from practical vehicle verification experiments, the tire prepared from the rubber material has the maintenance-free performance after puncture, the use requirement of the tire is met after the tire runs by 50Km, the outer edge sizes of comparative examples 1 to 4 are obviously changed, and the punctured holes are also expanded to a certain extent and do not meet the use requirement of the tire.
Although the invention has been described herein with reference to illustrative embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the spirit and scope of the principles of this disclosure.

Claims (8)

1. The maintenance-free tire rubber material is characterized by comprising the following components in parts by weight: natural rubber: 30-70 parts of ethylene propylene diene monomer: 70-30 parts of carbon black: 5-25 parts of white carbon black: 45-35 parts of zinc oxide: 2-3 parts of stearic acid: 1-1.5 parts of an anti-aging agent: 0.5-1.5 parts of accelerator: 0.1-0.6 parts of sulfur: 0.5-1.0 part of foaming agent: 2-3.0 parts of foaming auxiliary agent: 1.0-1.5 parts of super silane: 5-8% of white carbon black.
2. Maintenance-free tire compound according to claim 1, characterized by consisting of the following ingredients, measured in parts by weight: natural rubber: 60 parts of ethylene propylene diene monomer: 40 parts of carbon black: 15 parts of white carbon black: 40 parts, zinc oxide: 3 parts, stearic acid: 1.5 parts, 1.5 parts of anti-aging agent, accelerator: 0.6 part, sulfur: 0.8 part, foaming agent: 2.5 parts of foaming auxiliary agent: 1.2 parts, super silane: 5-8% of white carbon black.
3. Maintenance-free tire compound according to claim 1 or 2, characterized in that the blowing agent is an AC blowing agent.
4. Maintenance-free tire compound according to claim 3, characterized in that the foaming aid is TAIC.
5. Maintenance-free tire compound according to claim 3, characterized in that the antioxidant is a mixture of antioxidants 4020, RD.
6. Maintenance-free tire compound according to claim 3, characterized in that said accelerator is a mixture of accelerators CZ, NS.
7. The maintenance-free tire compound according to claim 3, wherein said carbon black is N234.
8. Process for the preparation of a maintenance-free tire compound according to any one of claims 4 to 7, characterized by comprising the steps of:
(1) mixing natural rubber and ethylene propylene diene monomer rubber with carbon black in an internal mixer for 240 seconds to prepare carbon black master batch, and standing for more than 2 hours;
(2) plasticating carbon black master batch in an internal mixer for 30 seconds, adding white carbon black, zinc oxide, stearic acid, an anti-aging agent and super silane, and mixing in the internal mixer for 120 seconds to prepare rubber compound;
(3) standing the mixed rubber for more than 4 hours, and then adding an accelerator, sulfur, an AC foaming agent and a TAIC foaming auxiliary agent on an open mill for mixing to obtain the maintenance-free tire rubber material.
CN202010707039.2A 2020-07-21 2020-07-21 Maintenance-free tire rubber material and preparation method thereof Active CN111777806B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010707039.2A CN111777806B (en) 2020-07-21 2020-07-21 Maintenance-free tire rubber material and preparation method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010707039.2A CN111777806B (en) 2020-07-21 2020-07-21 Maintenance-free tire rubber material and preparation method thereof

Publications (2)

Publication Number Publication Date
CN111777806A true CN111777806A (en) 2020-10-16
CN111777806B CN111777806B (en) 2022-04-26

Family

ID=72763192

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010707039.2A Active CN111777806B (en) 2020-07-21 2020-07-21 Maintenance-free tire rubber material and preparation method thereof

Country Status (1)

Country Link
CN (1) CN111777806B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112793367A (en) * 2021-01-08 2021-05-14 四川远星橡胶有限责任公司 Novel integrated configuration's non-maintaining tire
CN113072753A (en) * 2021-04-07 2021-07-06 四川远星橡胶有限责任公司 Traceless tire tread rubber and preparation method thereof

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1931910A (en) * 2006-09-01 2007-03-21 刘俭 Puncture resistant leak-less material for tyre without inner tuber and its prepn process
US20100108239A1 (en) * 2008-10-30 2010-05-06 Carla Recker Tire composition with improved vulcanizing agent
CN102666130A (en) * 2009-11-27 2012-09-12 米其林集团总公司 Tire for a vehicle having a tread comprising a heat-expandable rubber composition
CN108084576A (en) * 2017-10-24 2018-05-29 固比斯特科技(宁波）有限公司 A kind of inner tube of a tyre rubber composition and the pricking-proof explosion-proof tire with the inner tube of a tyre
CN109503913A (en) * 2017-09-14 2019-03-22 中国石油化工股份有限公司 One kind is exempted to inflate fretting map rickshaw tire raw material and exempts to inflate fretting map rickshaw tire and preparation method thereof
CN109679172A (en) * 2018-12-29 2019-04-26 浙江宽途智能科技有限公司 A kind of pricking-proof explosion-proof tire material and preparation method thereof
CN109762220A (en) * 2019-01-04 2019-05-17 中策橡胶集团有限公司 A kind of Tire tread rubber composition and its preparation method and application with microcellular structure
CN109836629A (en) * 2019-02-25 2019-06-04 朝阳浪马轮胎有限责任公司 A kind of all-steel load-bearing radial tire tyre surface formula sizing material and preparation method and tire
CN111320788A (en) * 2020-03-24 2020-06-23 东营市方兴橡胶有限责任公司 Preparation method of anti-reversion sidewall rubber for run-flat tire

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1931910A (en) * 2006-09-01 2007-03-21 刘俭 Puncture resistant leak-less material for tyre without inner tuber and its prepn process
US20100108239A1 (en) * 2008-10-30 2010-05-06 Carla Recker Tire composition with improved vulcanizing agent
CN102666130A (en) * 2009-11-27 2012-09-12 米其林集团总公司 Tire for a vehicle having a tread comprising a heat-expandable rubber composition
CN109503913A (en) * 2017-09-14 2019-03-22 中国石油化工股份有限公司 One kind is exempted to inflate fretting map rickshaw tire raw material and exempts to inflate fretting map rickshaw tire and preparation method thereof
CN108084576A (en) * 2017-10-24 2018-05-29 固比斯特科技(宁波）有限公司 A kind of inner tube of a tyre rubber composition and the pricking-proof explosion-proof tire with the inner tube of a tyre
CN109679172A (en) * 2018-12-29 2019-04-26 浙江宽途智能科技有限公司 A kind of pricking-proof explosion-proof tire material and preparation method thereof
CN109762220A (en) * 2019-01-04 2019-05-17 中策橡胶集团有限公司 A kind of Tire tread rubber composition and its preparation method and application with microcellular structure
CN109836629A (en) * 2019-02-25 2019-06-04 朝阳浪马轮胎有限责任公司 A kind of all-steel load-bearing radial tire tyre surface formula sizing material and preparation method and tire
CN111320788A (en) * 2020-03-24 2020-06-23 东营市方兴橡胶有限责任公司 Preparation method of anti-reversion sidewall rubber for run-flat tire

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112793367A (en) * 2021-01-08 2021-05-14 四川远星橡胶有限责任公司 Novel integrated configuration's non-maintaining tire
CN113072753A (en) * 2021-04-07 2021-07-06 四川远星橡胶有限责任公司 Traceless tire tread rubber and preparation method thereof
CN113072753B (en) * 2021-04-07 2022-11-15 四川远星橡胶有限责任公司 Traceless tire tread rubber and preparation method thereof

Also Published As

Publication number Publication date
CN111777806B (en) 2022-04-26

Similar Documents

Publication Publication Date Title
EP2341099B1 (en) Rubber composition for tire and studless tire
EP2345693B1 (en) Rubber composition for inner liner and pneumatic tire
US8658730B2 (en) Rubber composition for tire, and pneumatic tire
CN111777806B (en) Maintenance-free tire rubber material and preparation method thereof
US8857482B2 (en) Rubber composition for tread, method for producing the same, and heavy-load tire
CN109384965B (en) Rubber composition for tire side wall of tire, vulcanized rubber, and preparation method and application thereof
EP2586820A1 (en) Rubber composition for clinch apex and pneumatic tire
EP1593693A1 (en) Natural rubber and rubber composition containing the same
CN109929149B (en) Rubber composition for tire side wall of tire, vulcanized rubber, and preparation method and application thereof
CN111808377A (en) Self-repairing tire inner liner rubber material and preparation method thereof
CN114805954B (en) Carbon black reinforced tire lower tread rubber material, mixing method and double-layer tread pneumatic tire
EP3093159B1 (en) Pneumatic tire
CN116178812A (en) Engineering tire tread rubber with high wear resistance and high tear resistance and preparation method thereof
CN113234261B (en) Mining engineering tire tread rubber containing 4-ethoxyphenol and preparation method thereof
JP3038501B2 (en) Radial tire
JP5524701B2 (en) Rubber composition for breaker / ply strip layer and pneumatic tire
CN113072753B (en) Traceless tire tread rubber and preparation method thereof
CN113603941A (en) Rubber composite material containing white carbon black and mixing method for reducing agglomeration of white carbon black in rubber matrix
CN109929148B (en) Rubber composition for tire side wall of tire, vulcanized rubber, and preparation method and application thereof
CN114437415B (en) Rubber composition for light tire sidewall and application thereof, vulcanized rubber and preparation method and application thereof
CN116444871A (en) Low-rolling-resistance tread rubber material and preparation method thereof
CN114672080A (en) High-wear-resistance bicycle tire rubber composition
CN116693957A (en) Crown rubber material with low energy consumption and short braking distance and preparation method thereof
CN112625307A (en) Solid tire with strong flexibility and preparation method thereof
CN113462090A (en) Preparation method of white carbon black-containing RIIR/IIR/EPDM inner tube

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant