A kind of graphene-based antioxidant and its preparation method and application

A graphene-based, antioxidant technology, applied in the production of bulk chemicals, etc., can solve the problems of no anti-aging, long reaction cycle, lack of comparative experiments, etc., achieve high initial degradation temperature, improve thermal oxygen stability, Increase the effect of the interface
CN109651649BActive Publication Date: 2020-03-17SICHUAN UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SICHUAN UNIV
Publication Date
2020-03-17

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Abstract

The invention relates to the field of polymer composite materials, in particular to a graphene-based antioxidant and its preparation method and application. The invention provides a preparation method of a graphene-based antioxidant. The preparation method is as follows: firstly, graphene oxide is subjected to the action of a solvent and a carboxyl activator to obtain carboxyl-activated graphene oxide, and then the antioxidant is grafted to the obtained carboxyl-activated graphene oxide, and finally filtered, washed and dried to obtain a graphene-based antioxidant. The polyolefin-based composite material obtained by adding the graphene-based antioxidant obtained in the present invention to the polyolefin matrix has the characteristics of long oxidation induction period, high initial degradation temperature and resistance to solvent extraction.
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Description

technical field

[0001] The invention relates to the field of polymer composite materials, in particular to a graphene-based antioxidant and its preparation method and application. Background technique

[0002] Polyolefin materials are often affected by light, oxygen, and heat during processing and use, causing aging and degradation, which affects the use effect and service life. Therefore, stabilizing additives are often added in the processing and production of polyolefin materials to delay its aging and increase its thermal oxygen and light oxygen stability. Stabilizing additives are mainly divided into three categories: light stabilizers, heat stabilizers and antioxidants. Among them, the most effective and widely used method in industry is to add antioxidants to polyolefin materials. Among them, the primary antioxidant can terminate the transmission and growth of free radical chains in the oxidation process, and the secondary antioxidant can delay the generation of free...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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