Method for preparing high-performance composite cobalt boroacylate

A cobalt boroacylate and composite technology, which is applied in the field of preparation of cobalt boroacylate, can solve the problems of difficulty in controlling the degree of boroacylation, poor dispersion of cobalt boroacylate, and irregular substitution, so as to increase the cobalt content and Reactivity, controllable acyl carbon content, and improved dispersibility

Inactive Publication Date: 2017-08-04
JIANGYIN SANLIANG CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since there are many types of acids in the raw materials in the neutralization reaction, and the neutralization reaction is carried out in one pot, the substitution in the neutralization reaction product is disordered. The carbon number of the hydrocarbyl group in cobalt acylate is widely distributed, and the degree of boroacylation is difficult to control, resulting in poor dispersion of cobalt boroacylate

Method used

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  • Method for preparing high-performance composite cobalt boroacylate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046]In a 500ml three-neck flask equipped with a moisture collector, a back distillation condenser, and a vacuum pump, respectively add 50g of propionic acid and 66g of cobalt hydroxide, control the reaction temperature at 100-150°C, and the reaction time for 2 hours, release the waste water, and then Add 60g of neodecanoic acid and 100g of stearic acid, control the reaction temperature at 150-190°C, and the reaction time is 2 hours, release waste water, then add 55g of tributyl borate and stir, control the heating temperature at 190-195°C and keep it warm for 1 hour , steam the butyl propionate, control the temperature at 180-190°C, and discharge the material after half an hour. Cobalt content of the reaction product: 23%, melting point: 125°C, appearance is blue-purple solid.

Embodiment 2

[0048] In a 1000ml three-necked flask equipped with a moisture collector, a back distillation condenser, and a vacuum pump, add 74g of propionic acid and 93g of cobalt hydroxide respectively, control the reaction temperature at 120-170°C, and the reaction time for 2.5 hours, release the waste water, and then Add 84 g of neodecanoic acid and 134 g of stearic acid, control the reaction temperature at 170-190 ° C, and react for 1.5 hours, release waste water, then add 75 g of tributyl borate and stir, control the heating temperature at 190-195 ° C and keep warm for reaction 1 hour, distilled butyl propionate, the temperature was controlled at 180°C~190°C, and the material was discharged after half an hour. Cobalt content of the reaction product: 22.5%, melting point: 122°C, appearance is blue-purple solid.

Embodiment 3

[0050] In a 500ml three-neck flask equipped with a moisture collector, a back distillation condenser, and a vacuum pump, respectively add 52g of propionic acid and 66g of cobalt hydroxide, control the reaction temperature at 100-150°C, and the reaction time for 2 hours, release the waste water, and then Add 62g of neodecanoic acid and 62g of stearic acid, control the reaction temperature at 150-190°C, and react for 3 hours, release waste water, then add 50g of tributyl borate and stir, control the heating temperature at 190-195°C and keep it warm for 1 hour , steam the butyl propionate, control the temperature at 180-190°C, and discharge the material after half an hour. The reaction product contains 24% cobalt, melting point: 125°C, and appears as a rich blue-purple solid.

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Abstract

The invention relates to a method for preparing a high-performance composite cobalt boride, which mainly includes a salt-forming reaction, an acid replacement reaction, and a borylation reaction, and the degree of borylation can be achieved by replacing neodecanoic acid with stearic acid and propionic acid. Controlling, the number of carbon groups in the cobalt boroacylate molecule includes 3, 10, and 18 carbons, and the average value is controlled at 10, which improves the dispersion of the cobalt boroacylate product, improves the uniformity of rubber covering the surface of the steel cord, and solves the problem of adhesive adhesion. Practical application problems of dot, line, and surface exposure make the rubber and steel cord adhesion rate reach more than 90%, promote the bonding performance of rubber and steel cord, and prolong the service life of the tire.

Description

technical field [0001] The invention relates to a preparation method of cobalt boroacylate. Background technique [0002] Cobalt boroacylate, its theoretical molecular formula is: (R m CO-C o -O-) 3 B, (where m=3~11, mainly 9). Cobalt boroacylate is a highly active adhesion promoter, mainly used for natural rubber, synthetic rubber or these glues and brass, zinc, bare copper and brass or zinc-plated steel cords, ropes, metal plates adhesion promotion. It uses cobalt hydroxide, acetic acid and related organic acids as raw materials, first undergoes acid-base salt formation reaction, and then performs boroacylation reaction. The cobalt boroacylate prepared by this method has a relatively high cobalt content. When the rubber is vulcanized, they have a large reactivity and play a major role in strengthening the adhesion between the rubber and the steel wire. The glue (glue rate: the degree to which the rubber penetrates into the steel cord and covers the surface of the ste...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07F5/02C08K5/55
CPCC07F5/022C08K5/55
Inventor 徐京海陶秀军李雷
Owner JIANGYIN SANLIANG CHEM
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