Preparation method of rubber or resin light stabilizer

A light stabilizer and rubber resin technology, which is applied in the field of chemical stabilizer preparation, can solve problems such as cracking, stickiness, physical and mechanical properties, and reduced chemical properties, and achieve improved light stability, expanded application range, and good anti-aging effect of effect
CN104292148AInactive Publication Date: 2015-01-21SOUTHWEAT UNIV OF SCI & TECH
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Patent Information

Authority / Receiving Office
CN Β· China
Current Assignee / Owner
SOUTHWEAT UNIV OF SCI & TECH
Publication Date
2015-01-21
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention discloses a preparation method of a rubber or resin light stabilizer. The synthesis of the light stabilizer comprises two steps: firstly, with piperazine hexahydrate and methyl acrylate as raw materials, synthesizing a piperazine light stabilizer through Michael addition reaction under catalysis of graphene oxide; and carrying out transesterification on the stabilizer and 1,2,2,6,6-pentamethyl-4-piperidinol under catalysis of sodium methoxide to obtain the light stabilizer containing piperazine and piperidine functional groups. According to the preparation method disclosed by the invention, the original light stability is improved; meanwhile, the rubber or resin light stabilizer is a high-efficiency thermal antioxidant; and the service life can be prolonged by adding the rubber or resin light stabilizer to rubber or resin.
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Description

Technical field

[0001] The invention relates to a method for preparing a chemical stabilizer, in particular to a method for preparing a light stabilizer. Background technique

[0002] The application of polymer materials based on rubber or resin is wide, especially outdoor applications are increasing. However, in outdoor applications, polymer materials are affected by many factors, especially the effects of light, heat, and oxygen, which often cause aging, such as discoloration, stickiness, and cracking, which ultimately leads to degradation of their physical and mechanical properties and chemical properties. , Greatly shortening its service life.

[0003] Natural rubber is the most commonly used base material in rubber products because of its high cost performance. However, because its structure contains unsaturated double bonds, it becomes the weak part of aging. In order to delay or prevent the aging of rubber, it is most often The method used is to add antioxidants during the...

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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