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Modified pyridine styrene butadiene rubber latex and preparation method and application thereof

A technology for modification of benzopyridine latex, which is applied in textiles, papermaking, fiber treatment, etc., and can solve problems such as chemical stability, poor heat and cold resistance, low solid content of benzopyridine latex, and uneven latex particles , to achieve the effects of simple and safe production and use, excellent adhesion and low production cost

Active Publication Date: 2010-02-03
SHANDONG HEYI GAS CO LTD DONGYING CITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The solid content of the butylfenpyr latex is low, and the latex particles are not uniform, so a series of post-processing procedures are required, which increases the production cost
Its chemical stability, heat resistance and cold resistance are poor, and the bonding force decreases under extreme weather conditions, which cannot meet the needs of relevant parties.
In terms of cost, because the price of raw material butadiene is rising year by year, which is much higher than that of isoprene, the traditional styrene-butadiene pyridine latex is no longer competitive in terms of product cost

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] First, 100 g of deionized water, 20 g of sodium lauryl sulfate with a weight content of 10%, and 16 g of fatty alcohol polyoxyethylene ether with a weight content of 40% were added to the reactor, and stirred and emulsified for 30 minutes;

[0026] Next, add 20 grams of styrene and heat up to 40°C to continue stirring and emulsifying for 30 minutes;

[0027] Then add 3g of ammonium persulfate with a weight content of 10%, 3g of sodium bisulfite with a weight content of 10%, heat up to 70±2°C and react for 3 hours; then cool down to 20±5°C, and then add 50g of isoprene , 25 grams of butadiene, 5 grams of 2-vinylpyridine, after 2 hours of reaction, the temperature was raised to 40±3°C, and the reaction was continued for 3 hours; 1.5g of terminator, sodium dimethyldithiocarbamate, was added to stop the reaction and drop Discharging to room temperature to obtain the product.

[0028] The product was tested according to the SH / T 1593-1609-1994 standard, and the results are ...

Embodiment 2

[0032] First, 100 g of deionized water, 20 g of sodium lauryl sulfate with a weight content of 10%, and 16 g of fatty alcohol polyoxyethylene ether with a weight content of 40% were added to the reactor, and stirred and emulsified for 30 minutes;

[0033] Next, add 20 grams of styrene and heat up to 40°C to continue stirring and emulsifying for 30 minutes;

[0034] Then add 6g of ammonium persulfate with a weight content of 10%, 6g of sodium bisulfite with a weight content of 10%, heat up to 70±2°C and react for 3 hours; then cool down to 20±5°C, and then add 75g of isoprene , 5 grams of 2-vinylpyridine, after 3 hours of reaction, the temperature was raised to 40±3°C, and the reaction was continued for 3 hours; 1.5g of terminator sodium dimethyldithiocarbamate was added to stop the reaction, and the material was cooled to room temperature to obtain product.

[0035] The product was tested according to the SH / T 1593-1609-1994 standard, and the results are as follows:

[0036]...

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Abstract

The invention provides modified pyridine styrene butadiene rubber latex and a preparation method and application thereof. The modified pyridine styrene butadiene rubber latex is prepared from raw materials, namely mixed monomers, an initiator, an emulsifying agent, a dispersing agent and water, wherein the dosage of the initiator is 0.2 to 0.6 percent of the weight of the mixed monomers; the dosage of the emulsifying agent is 1 to 2 percent of the weight of the mixed monomers; the dosage of the dispersing agent is 2 to 4 percent of the weight of the mixed monomers; the dosage of the water is 95 to 105 percent of the weight of the mixed monomers; the mixed monomers comprise the following components in percentage by weight: 20 to 80 percent of isoprene, 0 to 50 percent of butadiene, 10 to 30percent of styrene or acrylonitrile, and 2 to 9 percent of 2-vinylpyridine. The modified pyridine styrene butadiene rubber latex has high solid content and percent conversion of the rubber latex, uniform latex particles and low content of residual dialkene, is nontoxic and odorless, has simple, convenient and safe operations in production and use, has better chemical stability, heat resistance and cold resistance than the conventional pyridine styrene butadiene rubber latex, and has low production cost.

Description

technical field [0001] The present invention relates to a kind of modified butadiene pyridine latex and its preparation method and application. Background technique [0002] Pyroxybutadiene latex is mainly used for impregnating cord fabrics and fabrics. It is widely used in the bonding of rubber products such as automobile tires, aircraft tires, rubber hoses, conveyor belts, and spouts. It is an important raw material for rubber products. [0003] At present, the widely used latex is pyridine-butadiene latex, which is a terpolymer of butadiene, styrene and 2-vinylpyridine. The solid content of the butylfenpyr latex is low, the latex particles are uneven, and a series of post-processing procedures are required, which increases the production cost. Its chemical stability, heat resistance and cold resistance are poor, and its cohesive force decreases under extreme weather conditions, which cannot meet the needs of relevant parties. In terms of cost, because the price of raw m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F236/08C08F236/06C08F212/08C08F220/44C08F226/06C08F2/26D06M15/693
Inventor 于景东孙光福孙景辉员建华
Owner SHANDONG HEYI GAS CO LTD DONGYING CITY
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