Preparation method of high-performance antioxidant of butyronitrile rubber latex

A high-performance, antioxidant technology, applied in the field of antioxidant preparation, can solve the problems of physical properties such as impact strength, flexural strength, tensile strength and elongation reduction, material fading and hardening, etc. Good effect, anti-aging yellowing, high thermal stability

Inactive Publication Date: 2014-06-18
JIANGSU FEIYA CHEM IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Nowadays, ABS, MBS, rubber, plastic, latex, etc. are important raw materials in daily life, and their application fields are constantly expanding. However, whether natural or synthetic, polymer materials are prone to oxidation reactions, which will cause the materials to fade, yellow, Hardening and cracking will lead to the reduction of physical properties such as impact strength, bending strength, tensile strength and elongation, which will affect the use

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] Embodiment one: a kind of preparation method of nitrile latex high-performance antioxidant, comprises the main antioxidant emulsion that mass percent is 60%, the auxiliary antioxidant emulsion of 40%, concrete steps are as follows.

[0011] (1) To prepare the main antioxidant emulsion, 90g of 2,2'-methylene bis-(4-methyl-6-tert-butylphenol), p-cresol and dicyclopentadiene butyl The compounded product, at least one of 10.8g of sodium lauryl sulfate and fatty alcohol polyoxyethylene ether sodium sulfate, and 79.2g of deionized water were mixed and stirred, thereby making the main antioxidant emulsion.

[0012] (2) To prepare auxiliary antioxidant emulsion, 60 g of tris[2.4-di-tert-butylphenyl] phosphite, 7.2 g of sodium lauryl sulfate and sodium fatty alcohol polyoxyethylene ether sulfate At least one, and 52.8g of deionized water are mixed and stirred to make auxiliary antioxidant emulsion.

[0013] (3) In a 500ml four-hole flask, add 180g of primary antioxidant emulsio...

Embodiment 2

[0014] Embodiment two: a kind of preparation method of nitrile latex high-performance antioxidant, comprise the main antioxidant emulsion that mass percentage is 50%, the auxiliary antioxidant emulsion of 50%, concrete steps are as follows.

[0015] (1) Prepare the main antioxidant emulsion by mixing 30g of 2,2'-methylene bis-(4-methyl-6-tert-butylphenol), p-cresol and dicyclopentadiene butyl The product, at least one of sodium lauryl sulfate and fatty alcohol polyoxyethylene ether sodium sulfate of 18g, and 102g deionized water are mixed and stirred, thereby making the main antioxidant emulsion.

[0016] (2) To prepare auxiliary antioxidant emulsion, at least One, and 102g deionized water are mixed and stirred, thereby making auxiliary antioxidant emulsion.

[0017] (3) In a 500ml four-hole flask, add 150g of primary antioxidant emulsion and 150g of auxiliary antioxidant emulsion prepared above, heat to 60°C under mechanical stirring, and stir for 30min at 250rpm to reach E...

Embodiment 3

[0018] Embodiment three: a kind of preparation method of nitrile latex high-performance antioxidant, comprises the main antioxidant emulsion that mass percent is 55%, the auxiliary antioxidant emulsion of 45%, concrete steps are as follows.

[0019] (1) Prepare the main antioxidant emulsion by mixing 49.5g of 2,2'-methylene bis-(4-methyl-6-tert-butylphenol), p-cresol and dicyclopentadiene butadiene The alkylation product, at least one of 16.5g of sodium lauryl sulfate and sodium fatty alcohol polyoxyethylene ether sulfate, and 99g of deionized water were mixed and stirred to prepare the main antioxidant emulsion.

[0020] (2) To prepare a secondary antioxidant emulsion, 40.5 g of tris[2.4-di-tert-butylphenyl] phosphite, 13.5 g of sodium lauryl sulfate and sodium fatty alcohol polyoxyethylene ether sulfate At least one of them, and 81g of deionized water are mixed and stirred to make auxiliary antioxidant emulsion.

[0021] (3) In a 500ml four-hole flask, add 165g of primary a...

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PUM

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Abstract

The invention relates to the technical field of antioxidant preparation methods, and in particular relates to a preparation method of a high-performance antioxidant of butyronitrile rubber latex. The preparation method disclosed by the invention comprises the following steps: mixing an emulsion type primary antioxidant of 2,2'-methylene-bis-(4-methyl-6-tert-butylphenol), paracresol and dicyclopentadiene butylated products with a tri[2,4-di-tertiary butyl-phenyl] phosphite ester emulsion type auxiliary antioxidant according to a certain proportion, and uniformly dispersing by stirring mechanically, wherein the viscosity of the formed emulsion is 0.2-2 pa.s, and the average particle size is less than or equal to 2 mu m. Compared with the prior art, firstly, the antioxidant prepared by the preparation method disclosed by the invention has the advantages of being good in antioxidant effect, high in heat-resistant stability, environment-friendly, convenient for use and the like; simultaneously, by adopting tri[2,4-di-tertiary butyl-phenyl] phosphite ester, the butyronitrile rubber latex can be effectively prevented from becoming aged and yellow; the instability effect of the rubber latex does not exist.

Description

technical field [0001] The invention relates to the technical field of antioxidant preparation methods, in particular to a preparation method of a nitrile latex high-performance antioxidant. Background technique [0002] Nowadays, ABS, MBS, rubber, plastic, latex, etc. are important raw materials in daily life, and their application fields are constantly expanding. However, whether natural or synthetic, polymer materials are prone to oxidation reactions, which will cause the materials to fade, yellow, Hardening and cracking will lead to the reduction of physical properties such as impact strength, bending strength, tensile strength and elongation, which will affect the use. So adding antioxidants to these materials is the simplest and most effective method. Since the anti-oxidation effect of a single phenolic antioxidant is relatively single, the method of combining the phenolic antioxidant as the main antioxidant and at least one of the thioester and phosphite as the secon...

Claims

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Application Information

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IPC IPC(8): C08L9/02C08K5/13C08K5/526
Inventor 曹宏生吴开赟张泽民
Owner JIANGSU FEIYA CHEM IND
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