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Multifunctional rubber modifier for all-steel radial tire and preparation technology thereof

A rubber modifier and multi-functional technology, applied in the field of rubber modifiers, can solve the problems of poor hydrolytic stability and single function of borate esters, and achieve the effects of easy production, simple operation, and improved cost performance

Active Publication Date: 2011-04-06
QINGDAO SIWEI CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Hu Xiaolan and Liang Guozheng (Hu Xiaolan, Liang Guozheng; Synthesis and Characterization of Borate Ester Coupling Agent[J]; Journal of Functional Polymer Science; 2003 Issue 02) synthesized a nitrogen-boron internal coordination structure through molecular structure design The unique borate coupling agent solves the problem of poor hydrolysis stability of borate
However, the existing modifiers generally have a single effect on rubber modification, and multifunctional rubber modifiers that can modify all-steel radial tires in many ways have become a research hotspot.

Method used

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  • Multifunctional rubber modifier for all-steel radial tire and preparation technology thereof
  • Multifunctional rubber modifier for all-steel radial tire and preparation technology thereof
  • Multifunctional rubber modifier for all-steel radial tire and preparation technology thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0019] A multifunctional rubber modifier for all-steel radial tires, which is prepared by the following steps:

[0020] First put glycerin with a set number of moles into a stainless steel reaction kettle, raise the temperature to 100°C, put in boric acid equal to the mole of glycerin, then seal the reaction kettle, heat up to 160°C under stirring conditions to react, and separate the small molecules through the oil-water separator. The by-products were removed, and the reaction was completed after the temperature in the kettle rose to 180° C. for 3-5 hours.

[0021] Then add PEG-1000 equimolar to glycerin, stir at 150 rpm, react for 3 hours under negative pressure of 300-500 mm Hg, extract and separate the by-products, and raise the temperature in the kettle to 220°C to complete the reaction. Then add diethanolamine in an equimolar amount to glycerin, maintain the temperature in the kettle at 180° C. for two hours, and the reaction ends; all the above processes are carried ou...

Embodiment 2

[0026] A kind of modified borate surfactant, it is made by following steps:

[0027] First put glycerin with a set number of moles into a stainless steel reaction kettle, raise the temperature to 60°C, put in boric acid equal to the mole of glycerin, then seal the reaction kettle, heat up to 120°C under stirring conditions to react, and separate the small molecules through the oil-water separator The by-products were removed, and the reaction was completed after the temperature in the kettle rose to 180° C. for 3-5 hours.

[0028] Then add equimolar C with glycerol 18 Fatty alcohol, stirred at 100 rpm, reacted for 5 hours under negative pressure of 300-500 mm Hg, extracted and separated the by-products, and raised the temperature in the kettle to 220°C to complete the reaction. Then add monoethanolamine in an equimolar amount to glycerol, maintain the temperature in the kettle at 160° C. for two hours, and the reaction ends; all the above-mentioned processes are carried out u...

Embodiment 3

[0033] A kind of modified borate surfactant, it is made by following steps:

[0034] First, put glycerin with a set number of moles into a stainless steel reaction kettle, raise the temperature to 80°C, put in boric acid equal to the mole of glycerin, then seal the reaction kettle, heat up to 140°C under stirring conditions to react, and separate the small molecules through the oil-water separator. The by-products were removed, and the reaction was completed after the temperature in the kettle rose to 180° C. for 3-5 hours.

[0035] Then add equimolar C with glycerol 18 Fatty acid, stirred at 120 rpm, reacted for 4 hours under negative pressure of 300-500 mm Hg, extracted and separated the by-products, and raised the temperature in the kettle to 220°C to complete the reaction. Then put in an equimolar amount of C with glycerol 18 Alkyl primary amines, maintain the temperature in the kettle at 170°C for two hours, and the reaction ends; all the above processes are carried out...

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Abstract

The invention discloses a multifunctional rubber modifier for an all-steel radial tire. The molecule of the rubber modifier which is an in-situ grafted modified borate molecule of which the central atom is a boron element; and the molecular configuration is a three-arm telechelic structure and is in an amphiphilic nonionic configuration. The multifunctional rubber modifier has functions of internal and external lubrication and interfacial activation, can reduce the Mooney viscosity of mixed rubber, and improves the abrasive resistance, flexibility and ageing and fatigue resistance of vulcanized rubber. The multifunctional rubber modifier also can improve the cost performance of rubber products so as to reduce the product cost and improve the performance. The provided preparation method issimple in technology, can achieve higher efficiency and reduce the environmental pollution, is mild in reaction conditions, easy and convenient to operate, ensures that the products are easy to separate, and has large-scale application prospects.

Description

technical field [0001] The invention relates to a rubber modifier, in particular to a multifunctional rubber modifier for all-steel radial tires and a preparation process thereof. Background technique [0002] Researchers at the University of Akron in the United States found that carbon black has been used to reinforce rubber for nearly a hundred years. Carbon black has been used as a rubber reinforcing agent until now. Although people have been studying it continuously in order to improve its reinforcing effect and other properties, Especially to improve the wear resistance of tire tread rubber, but there is still no major progress. During the processing of many polymer materials such as rubber and plastics, multiple material systems with very different surface energies are involved. In this way, in the process of mixing, the compatibility of various materials is not good, which affects the dispersion performance, and then It will affect the mechanical properties of materi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L21/00C08G65/48C07F5/04C08K9/04C08K3/04C09C3/08C09C3/10
Inventor 王源理陈占勋
Owner QINGDAO SIWEI CHEM
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