Maintenance-free tire rubber material and preparation method thereof

A maintenance-free, tire technology, applied in special tires, tire parts, rolling resistance optimization, etc., can solve the problems of poor grip, heavy solid tires, slow air leakage, etc., to achieve economical and adaptability, compression The effect of low heat generation and reduction of hidden dangers

Active Publication Date: 2020-10-16
SICHUAN YUANXING RUBBER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing pneumatic tires are easy to be punctured during use. After being punctured, they are prone to bursting and slow air leakage. Therefore, tires with inner tubes or tubeless tires need to be repaired after being punctured before continuing to drive.
Another kind of tire is a solid tire. A solid tire or a porous solid tire does not need to be inflated, so it will not burst due to a puncture. Although it can continue to drive after being punctured, most solid tires are too heavy and have high hardness. Poor grip and long braking distance limit its application

Method used

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  • Maintenance-free tire rubber material and preparation method thereof
  • Maintenance-free tire rubber material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Prepare raw materials according to the following parts by weight:

[0023] Natural rubber SVR3L: 30 parts;

[0024] Three yuan ethylene propylene rubber EPDM4045: 70 parts;

[0025] Carbon black N234: 15 parts;

[0026] White carbon black: 40;

[0027] Zinc oxide: 2.5 parts;

[0028] Stearic acid: 1.5 parts;

[0029] Antiaging agent 4020: 1 part;

[0030] Accelerator CZ: 0.6 parts;

[0031] Sulfur: 0.85 parts;

[0032] Foaming agent AC: 2.5 parts;

[0033] Foaming aid TAIC: 1.1 parts;

[0034] NXT Super Silane: 3.2 parts (8% of silica).

[0035] Mix EPDM rubber and natural rubber with carbon black in an internal mixer for 240 seconds to make carbon black masterbatch, and park for more than 2 hours. After masticating the carbon black masterbatch in the internal mixer for 30 seconds, add white carbon black, zinc oxide, stearic acid, anti-aging agent and super silane, and knead in the internal mixer for 120 seconds to make a mixed rubber. Park the rubber mixture...

Embodiment 2

[0037] Prepare raw materials according to the following parts by weight:

[0038] Natural rubber SVR3L: 70 parts;

[0039] EPDM4045: 30 parts;

[0040] Carbon black N234: 15 parts;

[0041] White carbon black: 40 parts

[0042] Zinc oxide: 2.5 parts;

[0043] Stearic acid: 1.5 parts;

[0044] Antiaging agent 4020: 1 part;

[0045] Accelerator CZ: 0.6 parts;

[0046] Sulfur: 0.85 parts;

[0047] Foaming agent AC: 2.5 parts;

[0048] TAIC: 1.5 copies;

[0049] NXT Super Silane: 2.0 parts (5% of silica);

[0050] The preparation method is the same as in Example 1 to obtain a maintenance-free tire compound.

Embodiment 3

[0052] Prepare raw materials according to the following parts by weight:

[0053] Natural rubber SVR3L: 60 parts;

[0054] EPDM4045: 40 parts;

[0055] Carbon black N234: 15 parts;

[0056] White carbon black: 40 parts

[0057] Zinc oxide: 3 parts;

[0058] Stearic acid: 1.5 parts;

[0059] Antiaging agent 4020: 1.4 parts; Antiaging agent RD: 0.1 parts;

[0060] Accelerator CZ: 0.5 parts; Accelerator NS: 0.1 parts;

[0061] Sulfur: 0.8 parts;

[0062] Foaming agent AC: 2.5 parts;

[0063] TAIC: 1.2 copies;

[0064] NXT Super Silane: 2.4 parts (6% of silica).

[0065] The preparation method is the same as in Example 1 to obtain a maintenance-free tire compound.

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Abstract

The invention discloses a maintenance-free tire rubber material. The tire rubber material is prepared from the following components in parts by weight: 30-70 parts of natural rubber, 70-30 parts of ethylene propylene diene monomer, 5-25 parts of carbon black, 45-35 parts of white carbon black, 2-3 parts of zinc oxide, 1-1.5 parts of stearic acid, 0.5-1.5 parts of an anti-aging agent, 0.1-0.6 partof an accelerant, 0.5-1.0 part of sulfur, 2-3.0 parts of a foaming agent, 1.0-1.5 parts of a foaming aid and super silane accounting for 5 to 8% of white carbon black, wherein the sum of the use amounts of natural rubber and ethylene propylene diene monomer is 100 parts. The tire rubber material has the advantages of low compression heat generation, better rebound resilience and smaller abrasion;by adopting the raw materials with low heat generation, high grip and low rolling resistance and a reasonable formula, the hidden danger to a processor and a user in the production and use process isgreatly reduced, and the safety, the economy and the adaptability of the product are wider.

Description

technical field [0001] The invention relates to tire technology, more specifically, the invention relates to a maintenance-free tire compound and a preparation method thereof. Background technique [0002] Tires are made up of multiple materials. At present, tires generally have inner tube tires or tubeless tires, solid tires or porous solid tires. Existing pneumatic tires are easy to puncture during use, and after the puncture, they are prone to bursting and slow air leakage. Therefore, after the puncture of the inner tube tire or the tubeless tire, it needs to be repaired before continuing to drive. Another type of tire is a solid tire. A solid tire or a porous solid tire does not need to be inflated, so it will not burst due to punctures. Although it can continue to drive after being punctured, most solid tires are too heavy and have high hardness. Poor grip and long braking distance limit its application. Maintenance-free tires refer to tires with inner tubes or tubele...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L7/00C08L23/16C08K13/06C08K9/06C08K7/26C08K3/04C08K3/22C08K5/09C08K3/06C08K5/18C08K5/3437C08K5/47C08K5/3492C08J9/10B60C1/00
CPCC08J9/103C08J9/009C08J9/0095C08J9/0066C08J9/0023C08J9/0028C08J9/0033B60C1/0016C08J2203/04C08J2307/00C08J2323/16C08J2407/00C08J2423/16C08K13/06C08K9/06C08K7/26C08K3/04C08K2003/2296C08K5/09C08K3/06C08K5/18C08K5/3437C08K5/47C08K2201/014C08K5/34924Y02T10/86
Inventor 郑昌福
Owner SICHUAN YUANXING RUBBER
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