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Rubber composition including phenolic resin containing polysulfur structure, and application and tire thereof

A technology of rubber composition and phenolic resin, which is applied in special tires, tire parts, transportation and packaging, etc. It can solve the problems of high dynamic heat generation, poor flexural properties of rubber compounds, and lack of flexibility of cross-linking bonds. , to improve the mechanical properties

Active Publication Date: 2020-03-13
BEIJING RED AVENUE INNOVA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the monosulfide bonds or disulfide bonds in the sulfur-containing phenolic resin structure are directly connected to the rigid structure of the benzene ring in the phenolic resin structure, which makes the crosslinks lack flexibility, which will lead to poor flexibility properties of the rubber compound. Good, high dynamic heat generation

Method used

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  • Rubber composition including phenolic resin containing polysulfur structure, and application and tire thereof
  • Rubber composition including phenolic resin containing polysulfur structure, and application and tire thereof
  • Rubber composition including phenolic resin containing polysulfur structure, and application and tire thereof

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preparation example Construction

[0049] The phenolic resin containing methylene polysulfide structure shown in the formula (I) mentioned in the present invention can be prepared by the general method in the prior art, enumerate a kind of optional preparation method as example below, phenolic The preparation method of resin specifically comprises the following steps:

[0050] Step 1. Add sodium hydroxide or sodium sulfide, sulfur, and water into a reactor equipped with a stirring device, a thermometer and a back distillation device, raise the temperature to 80°C to 100°C, and react for 2 to 6 hours to obtain an aqueous solution of product A ;

[0051] Step 2, adding the product A aqueous solution, phenol or alkylphenol with a mass percent concentration of 10% to 50% into a reactor equipped with a stirring device, a thermometer and a back distillation device, and heating to 60°C to 100°C, After adding the aldehyde, stir the reaction at 60°C-100°C for 2-6 hours. After the reaction is completed, neutralize the r...

Embodiment 2

[0095] The phenolic resin that contains polysulfide structure among the embodiment 2 is shown in formula (VI),

[0096]

[0097] Wherein m=2-4, n=4-6.

Embodiment 3

[0098] The phenolic resin containing polysulfide structure in embodiment 3 is as shown in formula (VII),

[0099]

[0100] Wherein m=2-4, n=4-6.

[0101] The instruments and equipment adopted in each embodiment and comparative examples are as follows:

[0102] 1.6LBR1600 internal mixer, product of Farrel Company in the United States;

[0103] XK-160 open mill, product of Qingdao Xincheng Yiming Machinery Factory;

[0104] XLB-D600×600 flat vulcanizing machine, product of Zhejiang Huzhou Hongqiao Machinery Factory;

[0105] Model 3365 tensile machine, product of Instron Corporation of the United States;

[0106] Dynamic cutting test machine, a product of American Tap Company;

[0107] Compression heat generation instrument, the product of Alpha Company in the United States.

[0108] Table 1 comparative example and embodiment 1-3 formula table

[0109]

[0110] Table 2 Embodiment 4-6 formula table

[0111]

[0112] According to the formula shown in Table 1 and Ta...

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Abstract

The invention relates to the technical field of rubber products, and concretely relates to a rubber composition including phenolic resin containing a polysulfur structure, an application of the rubbercomposition, and a tire produced by using the rubber composition. The rubber composition comprises 100 parts by weight of a rubber component and 1.0-20.0 parts by weight of the phenolic resin containing the polysulfur structure, and further comprises a methylene donor accounting for 3.0-25 wt% of the mass content of the phenolic resin containing the polysulfur structure. The rubber composition including phenolic resin containing the polysulfur structure can effectively improve the mechanical properties, the tear resistance, the cutting resistance and the puncture resistance of the rubber material under the same processing conditions, can reduce dynamic heat generation and improve the flexural property of the rubber compound, and is particularly suitable for the sidewall of the tire.

Description

technical field [0001] The present application relates to the technical field of rubber products, in particular, to a rubber composition having a polysulfide-containing structure phenolic resin, the application of the rubber composition, and a tire prepared by using the rubber composition. Background technique [0002] With the rapid development of the mining industry, construction machinery tires have developed in the direction of specialization. The demand for construction machinery tires in my country is large and the coverage is wide. Construction machinery tires are mainly operated in harsh environments such as mountainous areas and mining areas, and are easily cut by stones. The phenomenon of chipping and chipping occurs, which affects the quality of the tire and reduces the service life of the tire. [0003] The sidewall of the tire is one of the main pressure and heat-receiving parts of the OTR tire, which requires the sidewall of the OTR tire to have good resistance ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L9/06C08L7/00C08L61/14C08K13/02C08K3/04C08K5/09C08K3/22B60C1/00
CPCC08L9/06C08L7/00B60C1/0025C08K2201/006C08K2201/014C08L2205/035C08L2205/02C08K2003/2296C08L61/14C08K13/02C08K3/04C08K5/09C08K3/22
Inventor 姚居峰甄博明陈强蒋小强王文芳董栋张宁
Owner BEIJING RED AVENUE INNOVA
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