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Antioxidant for silicon oil

A technology of antioxidant and silicone oil, which is applied in the field of preparations that can improve the oxidation resistance of silicone oil, and can solve problems such as low temperature resistance

Inactive Publication Date: 2011-07-20
BEIJING UNIV OF CHEM TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Although simethicone itself has good oxidation resistance, it is usually not resistant to high temperature

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0013] 1. Preparation of antioxidant additives:

[0014] 1. After hydrolyzing 1kg of trivalent cerium salt (cerium chloride or cerous nitrate), heat it to 35-40°C;

[0015] 2. Add 1 to 5 kg of bisphenol A aqueous solution dropwise into cerium chloride or cerous nitrate aqueous solution, and stir to form bisphenol A cerium floc;

[0016] 3. Dry and dehydrate at 100°C to obtain a high-temperature antioxidant.

[0017] 2. Application:

[0018] 1. Weigh 1-50kg of the above antioxidant additives and mix them evenly with 1000kg of dimethyl silicone oil to make high antioxidant dimethyl silicone oil.

[0019] The high anti-oxidation simethicone oil is used as the release agent of the chemical fiber spinneret. The process requires the release agent to be kept at 300°C for more than 72 hours. The simethicone oil after adding antioxidant can last for more than 240 hours.

[0020] and collect data.

[0021] 2. Weigh 1-50kg of the above antioxidant additives and mix them evenly with ...

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Abstract

The present invention relates to an antioxidant used in silicon oil, belonging to the technical field of chemical additive, particularly the technology for improving the antioxidation property of silicon oil. The antioxidant is consisted of trivalent cerium compounds and organic phenols. Comparing to the traditional organic antioxidant which can work but lack the ability to survive under high temperature, the present antioxidant of which 0.1% to 5% is added to simethicone and polymethylphenyl siloxane fluid can realize an antioxidation that lasts more than 240 hours under 300 DEG C without forming polymers.

Description

technical field [0001] The invention relates to the technical field of chemical additives, in particular to the technology of formulations capable of improving the oxidation resistance of silicone oil. Background technique [0002] Silicone oil is a kind of non-toxic, odorless, non-corrosive, non-flammable polysiloxane liquid oil with various viscosities. Silicone oil has many special properties, such as low temperature viscosity coefficient, high and low temperature resistance, oxidation resistance, high flash point, low volatility, good insulation, low surface tension, non-corrosive to metal, non-toxic, etc. Due to these properties, silicone oils are used in many ways with excellent results. [0003] Simethicone oil has various excellent properties, so it has been widely used in various departments of industrial and agricultural production, national defense industry, scientific research and medical and health departments. It is widely used in electrical insulation, demou...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L83/04C08K13/02C08K3/28C08K5/13
Inventor 周云山张立娟叶宁
Owner BEIJING UNIV OF CHEM TECH
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