Rubber anti-aging agent, preparation method thereof, and rubber

A rubber antioxidant, methyl technology, applied in the rubber field, can solve problems such as toxicity and environmental pollution

Active Publication Date: 2013-08-21
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The rubber anti-aging agent is cheap and has a good protective effect, but it al...

Method used

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  • Rubber anti-aging agent, preparation method thereof, and rubber
  • Rubber anti-aging agent, preparation method thereof, and rubber
  • Rubber anti-aging agent, preparation method thereof, and rubber

Examples

Experimental program
Comparison scheme
Effect test

preparation Embodiment 1

[0030] This preparation example is used to illustrate the rubber antioxidant of the present invention and its preparation.

[0031] At room temperature (25°C), 12 g of tris(2,4-di-tert-butylphenyl) phosphite, 10 g of dilauryl dithiodipropionate, 45 g of 2,2'-methylene Bis-(4-methyl-6-tert-butylphenol), 25 g of 4,4′-thiobis-(3-methyl-6-tert-butylphenol), 5 g of 2-hydroxy-4-n-octyl Oxybenzophenone and 3g of 2-(2-hydroxy-5-tert-octylphenyl)benzotriazole were uniformly mixed to obtain rubber antioxidant X1.

preparation Embodiment 2

[0033] This preparation example is used to illustrate the rubber antioxidant of the present invention and its preparation.

[0034] At room temperature (25°C), 10 g of tris(2,4-di-tert-butylphenyl) phosphite, 15 g of dilauryl dithiodipropionate, 15 g of 2,2'-methylene Bis-(4-methyl-6-tert-butylphenol), 115 g of 4,4′-thiobis-(3-methyl-6-tert-butylphenol) and 3 g of 2-(2-hydroxy-5 - tert-octylphenyl) benzotriazole mixed uniformly to obtain rubber antioxidant X2.

preparation Embodiment 3

[0036] This preparation example is used to illustrate the rubber antioxidant of the present invention and its preparation.

[0037] At room temperature (25°C), 15g of tris(2,4-di-tert-butylphenyl)phosphite, 4g of dilauryl dithiodipropionate, 30g of 4,4'-thiobis -(3-methyl 6-tert-butylphenol) and 30 g of 2-hydroxyl-4-n-octyloxybenzophenone were mixed uniformly to obtain rubber antioxidant X3.

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Abstract

The invention provides a rubber anti-aging agent, a preparation method thereof, and rubber. The rubber anti-aging agent comprises tris(2,4-di-tert-butylphenyl)phosphite, dilauryl dithiodipropionate, and 4,4'-thiobis-(3-methyl-6-tert-butyl phenol) and/or 2,2'-methylenebis-(4-methyl-6-tert-butyl-phenol). The rubber anti-aging agent preparation method comprises the step that the tris(2,4-di-tert-butylphenyl)phosphite, dilauryl dithiodipropionate, and 4,4'-thiobis-(3-methyl-6-tert-butyl phenol) and/or 2,2'-methylenebis-(4-methyl-6-tert-butyl-phenol) are well mixed. With the rubber anti-aging agent provided by the invention, prepared rubber has excellent aging resistance and high strength.

Description

technical field [0001] The invention relates to a rubber antioxidant, a preparation method thereof and a rubber. Background technique [0002] Rubber anti-aging agent can not only resist thermal oxygen aging, anti-ozone aging, but also have remarkable effects on copper ion, light and flexing aging. At present, the anti-aging agents used in rubber products can be roughly divided into two types: amines and hindered phenols. The protective effect of amine anti-aging agents is the most prominent, and it is also a type of anti-aging agents that was discovered the earliest, has the most varieties, and is most widely used. However, amine antioxidants can change the color of the rubber or cause pollution to the surrounding environment. At present, amine antiaging agents are only used in the tire industry that does not require high toxicity and color pollution, but cannot be used in medical rubber products, plastics and fibers. Hindered phenolic anti-aging agents are less pollutin...

Claims

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Application Information

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IPC IPC(8): C08K5/00C08K5/526C08K5/372C08K5/375C08K5/13C08K5/07C08K5/3467C08L21/00
Inventor 王丽丽李传清曲亮靓于国柱赵青松李静刘苹刘翠云李绍宁乔勋昌
Owner CHINA PETROLEUM & CHEM CORP
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