Silane coupling agent modified halloysite nanotube loaded antioxidant compound, polycarbonate composition and preparation method and application thereof

Abstract

The invention relates to a silane coupling agent modified halloysite nanotube loaded antioxidant compound, a polycarbonate composition as well as a preparation method and application thereof. The weight ratio of the silane coupling agent to the halloysite nanotube loaded antioxidant compound in the silane coupling agent modified halloysite nanotube loaded antioxidant compound is (0.01-0.1): 1, and the weight ratio of the silane coupling agent to the halloysite nanotube loaded antioxidant compound is (0.01-0.1): 1. The weight ratio of the antioxidant to the halloysite nanotube is 1: (5-15). Research finds that the silane coupling agent modified halloysite nanotube loaded antioxidant compound has better thermo-oxidative aging resistance and better migration resistance, and when the silane coupling agent modified halloysite nanotube loaded antioxidant compound is added into a polycarbonate composition as a heat stabilizer, the polycarbonate composition can be endowed with better long-term thermo-oxidative stability and stable mechanical properties; the material can be popularized and applied to the fields of electronics and electricity, electric tools, lighting building materials, automobile manufacturing industry, medical instruments, aerospace and the like.

Description

technical field [0001] The invention belongs to the technical field of engineering plastics, and in particular relates to a halloysite nanotube-loaded antioxidant compound modified by a silane coupling agent, a polycarbonate composition, a preparation method and application thereof. Background technique [0002] Polycarbonate is an engineering plastic with excellent comprehensive properties. It has good mechanical properties, excellent impact toughness and dimensional stability. have wide applications. However, under the action of environmental factors such as heat and oxygen in the processing and use environment, polycarbonate will undergo aging degradation, that is, the material performance will deteriorate, such as yellowing, surface cracks, and molecular chain reduction, which will lead to the deterioration of the material. The mechanical properties are reduced or even lost. Therefore, improving the long-term thermo-oxidative aging resistance of polycarbonate has impor...

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Problems solved by technology

[0005] The purpose of the present invention is to overcome the defects or deficiencies of the poor long-term thermo-oxidative stability of polycarbonate materials in the prior art, and provide a halloysite nanotube-loaded antioxidant compound modified by a silane coupling agent

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