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Modified resorcinol phenolic resin and preparation method thereof and rubber compound

A technology of resorcinol phenolic resin and rubber composition, which is applied in the field of modified resorcinol phenolic resin and its preparation, and can solve the problems of reducing resorcinol reactive sites, functional impact, environmental pollution, etc.

Active Publication Date: 2013-01-16
BEIJING RED AVENUE INNOVA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Although the above method has solved the problem of environmental pollution caused by the thermal volatilization of resorcinol during use, the modification of unsaturated olefins and alkylphenols has reduced the reactive sites of resorcinol, making the resin as a sub- The function of the methyl acceptor is affected to some extent by

Method used

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  • Modified resorcinol phenolic resin and preparation method thereof and rubber compound
  • Modified resorcinol phenolic resin and preparation method thereof and rubber compound
  • Modified resorcinol phenolic resin and preparation method thereof and rubber compound

Examples

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Embodiment 1

[0059] Add 100 parts by mass of resorcinol to a reaction flask equipped with a mechanical stirrer, thermometer, reflux condenser and dropping funnel, heat up to 120°C to melt, add 0.32 parts by mass of p-toluenesulfonic acid monohydrate (Beijing Chemical Reagent Company, purity>98%) were mixed. Add dropwise the 2-allyl phenol of 30 parts by mass (Alfa Aisha (Tianjin) Chemical Co., Ltd., purity > 98%), control the reaction temperature between 120-135 ° C, and drop it in 30 minutes. The reaction was carried out at a temperature of 130° C. for 1 hour. Then, 48 parts by mass of formaldehyde (37% by weight aqueous solution) was slowly added dropwise over 1 hour to perform a reaction. After the dropwise addition of formaldehyde, add 0.3 parts by mass of NaOH aqueous solution (25% by weight) to neutralize, then carry out atmospheric distillation to 150-160°C to remove water and other volatile substances in the reaction system, and obtain a softening point of 120.2 ℃ red resin, free...

Embodiment 2

[0061] Add 100 parts by mass of resorcinol to a reaction flask equipped with a mechanical stirrer, thermometer, reflux condenser and dropping funnel, heat up to 120°C to melt, add 0.32 parts by mass of p-toluenesulfonic acid monohydrate (Beijing Chemical Reagent Company, purity>98%) were mixed. Add dropwise the 2-allyl phenol of 35 parts by mass (Alfa Aisha (Tianjin) Chemical Co., Ltd., purity > 98%), control the reaction temperature between 120-135 ° C, and drop it in 30 minutes. The reaction was carried out at a temperature of 130° C. for 1 hour. Then, 44 parts by mass of formaldehyde (37% by weight aqueous solution) was slowly added dropwise over 1 hour to perform a reaction. After the dropwise addition of formaldehyde, add 0.3 parts by mass of NaOH aqueous solution (25% by weight) to neutralize, then carry out atmospheric distillation to 150-160°C to remove water and other volatile substances in the reaction system, and obtain a softening point of 103.5 ℃ red resin, free...

Embodiment 3

[0063] Add 100 parts by mass of resorcinol to a reaction flask equipped with a mechanical stirrer, thermometer, reflux condenser and dropping funnel, heat up to 120°C to melt, add 0.32 parts by mass of p-toluenesulfonic acid monohydrate (Beijing Chemical Reagent Company, purity>98%) were mixed. Add dropwise the 2-allyl phenol of 40 parts by mass (Alfa Aisha (Tianjin) Chemical Co., Ltd., purity > 98%), control the reaction temperature between 120-135 ° C, and drop it in 30 minutes. The reaction was carried out at a temperature of 130° C. for 1 hour. Then, 44 parts by mass of formaldehyde (37% by weight aqueous solution) was slowly added dropwise over 1 hour to perform a reaction. After the dropwise addition of formaldehyde, add 0.3 parts by mass of NaOH aqueous solution (25% by weight) to neutralize, then carry out atmospheric distillation to 150-160°C to remove water and other volatile substances in the reaction system, and obtain a softening point of 98.4 ℃ red resin, free ...

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Abstract

The invention relates to modified resorcinol phenolic resin and a preparation method thereof. Reactivity of resorcinol phenolic resin is maintained by using phenolic materials with reactivity to modify the resorcinol phenolic resin. The invention further discloses a rubber compound material which is composed of (i) rubber constituents selected from natural rubber or synthetic rubber; (ii) methylene donors; and (iii) the modified resorcinol phenolic resin serving as a methylene acceptor.

Description

technical field [0001] The invention relates to a modified resorcinol phenolic resin and a preparation method thereof, and a rubber composition containing the modified resorcinol phenolic resin, and the modified resorcinol phenolic resin is especially suitable for rubber and steel wire Tightly bonded composites. Background technique [0002] In the production of rubber materials, various rigid materials are often used as effective reinforcing materials, especially steel wire is used as the skeleton material, which is already a common practice in the tire industry. Due to the huge difference in properties between the two materials, rubber and steel wire, the combination of the two has a huge impact on the final properties of the material. In order to improve the bonding between steel wire and rubber, chemical methods are widely used in current tire production. [0003] The chemical method refers to adding the methylene donor and the methylene acceptor to the rubber at the s...

Claims

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Application Information

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IPC IPC(8): C08G8/30C08L61/14C08L7/00C08L9/00C08L11/00C08L9/02C08L9/06C08L23/22C08L23/16
Inventor 张成罗朝霞王文芳胡小娜董栋
Owner BEIJING RED AVENUE INNOVA