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A kind of bisphenol compound modified resorcinol resin, rubber composition and preparation method thereof

A technology of resorcinol resin and rubber composition, applied in the field of rubber, can solve problems such as lack of attention, and achieve the effects of improving cross-linking network density, good physical properties, and reducing industrial waste water

Active Publication Date: 2021-03-05
BEIJING RED AVENUE INNOVA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, the general concern about methylene acceptors is the health and environmental problems that may be caused by free resorcinol in resins with high resorcinol content or due to smoke during rubber processing and heating. And the adhesion between the steel cord and the vulcanized rubber, but no attention has been paid to how to improve or improve the physical and mechanical properties of the vulcanized rubber itself by adding resin

Method used

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  • A kind of bisphenol compound modified resorcinol resin, rubber composition and preparation method thereof
  • A kind of bisphenol compound modified resorcinol resin, rubber composition and preparation method thereof
  • A kind of bisphenol compound modified resorcinol resin, rubber composition and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0071] Embodiment 1 prepares bisphenol compound modified resorcinol resin

[0072] Add 0.5mol of bisphenol A, 50g of distilled water, 100ml of toluene, and 1.2g of p-toluenesulfonic acid into a reaction flask equipped with a stirring device, a thermometer and a reflux condenser, gradually raise the temperature to 70°C, stir to completely dissolve bisphenol A, and gradually Add 1.1 mol of solid formaldehyde in batches, react under reflux for 2 hours, then add 1.25 mol of resorcinol to react for 1 hour, change the distillation state, then gradually raise the temperature to 180°C, neutralize diethanolamine, and then distill under reduced pressure to obtain a red modified bis The phenol-resorcinol resin has a resin softening point of 123.5° C. and a free bisphenol A content of 0.05% by weight.

Embodiment 2～5

[0073] Embodiment 2~5 prepares bisphenol compound modified resorcinol resin

[0074] Except changing the molar ratio of raw materials bisphenol A, formaldehyde and resorcinol, the preparation process of the resin in Example 1 was repeated. See Table 2 below for specific data.

[0075] Table 2

[0076] Example Example 2 Example 3 Example 4 Example 5 Bisphenol A(mol) 0.5 0.5 0.5 0.8 Formaldehyde (mol) 1.9 1.3 1 0.5 Resorcinol (mol) 1.6 1.5 1.9 0.5 Softening point (℃) 135.2 121.6 85.7 73.7 Free bisphenol A parts by weight (%) 0.08 0.04 0.09 0.10

Embodiment 6

[0077] Embodiment 6 prepares bisphenol compound modified resorcinol resin

[0078] Add 0.5mol of bisphenol E, 50g of distilled water, 150ml of xylene, and 3g of triethanolamine into a reaction flask equipped with a stirring device, a thermometer and a reflux condenser, gradually raise the temperature to 80°C, stir to completely dissolve bisphenol E, and gradually batch Add 1.5 mol of acetaldehyde, react for 2 hours under reflux, then add 1.5 mol of resorcinol and react for 1 hour, change the distillation state, gradually increase the temperature to 180°C, then distill under reduced pressure, and obtain red modified bisphenol- The resorcinol resin has a resin softening point of 110.6° C. and a free bisphenol E content of 0.12% by weight.

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Abstract

The invention relates to a bisphenol compound modified resorcinol resin, a rubber composition and a preparation method thereof, wherein the rubber composition is prepared from raw materials comprising the following components: 100 parts by mass of rubber, 30- 70 parts by mass of filler, 0.5-5 parts by mass of methylene donor, 1-5 parts by mass of sulfur and 0.5-15 parts by mass of the bisphenol compound modified resorcinol resin. The resin of the present invention can endow the rubber composition of the present invention with good physical properties, mechanical properties and adhesive properties. In addition, the method of the present invention has the advantages of environmental protection, economy and cost saving.

Description

technical field [0001] The invention relates to the field of rubber, in particular to a bisphenol compound modified resorcinol resin, a rubber composition and a preparation method thereof. Background technique [0002] Rubber material is one of the important basic materials in social life and is widely used in all aspects of social life. As an important application field of rubber materials, the automobile tire industry needs to add rigid materials as effective reinforcement materials in the production process, especially the ply ply that uses steel wire as the skeleton material, because there is a huge difference in properties between steel wire and rubber. These combinations have a huge impact on tire performance. On the one hand, the adhesion between the steel cord and rubber directly affects the service life of the tire; on the other hand, the vulcanized rubber bonded to the steel cord also needs to have high physical and mechanical properties, and its performance and s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L7/00C08L61/14C08K13/02C08K3/06C08K5/09C08K3/22C08G8/28C08G8/22C08G8/20
CPCC08G8/20C08G8/22C08G8/28C08K2003/2296C08L7/00C08L61/14C08K13/02C08K3/06C08K5/09C08K3/22
Inventor 张洁阮振刚张成董栋张宁
Owner BEIJING RED AVENUE INNOVA
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