Preparation method of carboxylated acrylonitrile-butadiene latex for disposable gloves

A carboxylated nitrile latex, a disposable technology, applied in gloves, applications, clothing, etc., can solve the problems of unfavorable and stable storage and use, difficult control of process flow, restrictions on production and application, etc., so as to facilitate popularization and use and reduce oxidative damage , Improve the effect of the right amount of product

Inactive Publication Date: 2019-12-27
DONGYING JIUZHOU AOHUA CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] But the preparation method of existing nitrile latex is more complicated, and technological process is difficult for controlling, has restricted its production and application greatly, and after the nitrile latex of preparation is produced gloves, is easy to oxidative aging, is unfavorable for stable storage and use, poor treatment, needs to be improved

Method used

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Examples

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Effect test

preparation example Construction

[0026] A preparation method for carboxylated nitrile latex for disposable gloves, the preparation method for disposable gloves carboxylated nitrile latex is made of the following raw materials: 30%-50% of butadiene, 10%-25% of methacrylic acid %, acrylonitrile 20%-30%, non-ionic emulsifier 15%-20%, deionized water 5%-15%, catalyst 1%-5% and antioxidant 3%-5%.

[0027] As preferably, described comprises the steps:

[0028] S1. Weigh each raw material according to the mass percentage, and set aside;

[0029] S2, adding butadiene, methacrylic acid, acrylonitrile, nonionic emulsifier and deionized water into the reaction kettle, stirring evenly to obtain mixed raw materials;

[0030] S3, then vacuumize the reactor and then fill it with nitrogen for replacement, raise the temperature to 45°C to 50°C, keep the temperature for 30 minutes to 45 minutes, and obtain the heating raw material;

[0031] S4, drop into catalyst in reactor, be heated to 65 ℃ to 70 ℃, heat preservation react...

Embodiment 1

[0046] A method for preparing carboxylated nitrile latex for disposable gloves. The preparation method for disposable gloves is made of the following raw materials: 40% butadiene, 10% methacrylic acid, and 20% acrylonitrile , non-ionic emulsifier 15%, deionized water 10%, catalyst 2% and antioxidant 3%.

[0047] As preferably, described comprises the steps:

[0048] S1. Weigh each raw material according to the mass percentage, and set aside;

[0049] S2, adding butadiene, methacrylic acid, acrylonitrile, nonionic emulsifier and deionized water into the reaction kettle, stirring evenly to obtain mixed raw materials;

[0050] S3, then vacuumize the reactor and then fill it with nitrogen for replacement, raise the temperature to 45°C to 50°C, keep the temperature for 30 minutes to 45 minutes, and obtain the heating raw material;

[0051] S4, drop into catalyst in reactor, be heated to 65 ℃ to 70 ℃, heat preservation reaction 5 hours to 6 hours, obtain carboxylated nitrile latex...

Embodiment 2

[0065] A method for preparing carboxylated nitrile latex for disposable gloves. The preparation method for disposable gloves is made of the following raw materials: 30% butadiene, 10% methacrylic acid, and 25% acrylonitrile , 15% non-ionic emulsifier, 10% deionized water, 5% catalyst and 5% anti-aging agent.

[0066] As preferably, described comprises the steps:

[0067] S1. Weigh each raw material according to the mass percentage, and set aside;

[0068] S2, adding butadiene, methacrylic acid, acrylonitrile, nonionic emulsifier and deionized water into the reaction kettle, stirring evenly to obtain mixed raw materials;

[0069] S3, then vacuumize the reactor and then fill it with nitrogen for replacement, raise the temperature to 45°C to 50°C, keep the temperature for 30 minutes to 45 minutes, and obtain the heating raw material;

[0070] S4, drop into catalyst in reactor, be heated to 65 ℃ to 70 ℃, heat preservation reaction 5 hours to 6 hours, obtain carboxylated nitrile ...

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PUM

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Abstract

The invention discloses a preparation method of carboxylated acrylonitrile-butadiene latex for disposable gloves. The preparation method utilizes following raw materials: 30%-50% of butadiene, 10%-25%of methacrylic acid, 20%-30% of acrylonitrile, 15%-20% of a nonionic emulsifier, 5%-15% of deionized water, 1%-5% of a catalyst and 3%-5% of an antioxidant. According to the method, the butadiene, the methacrylic acid, the acrylonitrile and other raw materials are adopted for preparation, the reaction efficiency is high, high strength and small shrinkage are achieved, and the catalyst is preheated and subjected to heat preservation, so that the reaction efficiency is effectively improved, the temperature runaway phenomenon is avoided, the antioxidant is added in a candidate manner, the quality of a finished product is effectively improved, and the oxidative damage is reduced, so that the technological process can be greatly simplified, the control is facilitated, quality of the product isimproved, and popularization and application are facilitated.

Description

technical field [0001] The invention relates to the technical field of nitrile latex, in particular to a method for preparing carboxylated nitrile latex for disposable gloves. Background technique [0002] In current work and life, disposable gloves are widely used and require a large amount of nitrile latex for production. [0003] But the preparation method of existing nitrile latex is more complicated, and technological process is difficult for controlling, has restricted its production and application greatly, and after the nitrile latex of preparation is produced gloves, is easy to oxidative aging, is unfavorable for stable storage and use, poor treatment, Improvements could be made. Contents of the invention [0004] The purpose of the present invention is in order to solve the shortcoming that exists in the prior art, and proposes a kind of preparation method that is used for disposable gloves carboxylated nitrile latex. [0005] In order to achieve the above obje...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L9/04C08L29/04C08K5/375C08K5/12C08K5/09C08K5/20C08F236/12C08F220/06C08F220/46A41D19/015
CPCA41D19/0055A41D2500/50C08F2/30C08F236/12C08K5/09C08K5/20C08L9/04C08L2201/08C08L29/04C08K5/375C08K5/12C08F220/06C08F220/46
Inventor 王旭
Owner DONGYING JIUZHOU AOHUA CHEM
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