Non-antimonide halogen-free flame-retardant polyamide composite material and preparation method thereof

Abstract

The invention discloses a non-antimonide halogen-free flame-retardant polyamide composite material and a preparation method thereof. The composite material comprises 20-80 parts of polyamide resin, 1-30% of bromine flame retardant and 0.01-15 parts of condensed aluminum phosphate. Condensed aluminum phosphate is adopted as a novel flame retardant, flame-retardant effect equivalent to a bromine-antimony flame-retardant system without introducing antimony white can be realized, bromine flame-retardant polyamide can be endowed with excellent electrical performance, damage to environment and humanbodies is reduced, and the composite material has wider application range than bromine-antimony flame-retardant polyamide composite materials.

Description

technical field [0001] The invention belongs to the technical field of engineering plastics, and in particular relates to a non-antimonyated halogen-containing flame-retardant polyamide composite material and a preparation method thereof. Background technique [0002] Polyamide has good flame retardancy, is a self-extinguishing material, and has good electrical insulation performance (CTI 600), but it is still combustible. It is easier to burn after adding glass fiber and other substances. In a live working environment, due to leakage, short circuit, arc, Fires caused by sparks and other conditions still exist. Therefore, polyamide materials must be flame-retardant modified before they are used in the production of electronic and electrical components, and the flame-retardant modification of polyamide materials may lead to its tracking index (CTI ) reduction, for example, the CTI value of polyamide materials flame-retardant with halogenated flame retardants will drop to abou...

AI Technical Summary

Problems solved by technology

At present, in the formulation design process of brominated flame-retardant polyamide materials, the excellent flame-retardant performance is mainly achieved through the compounding of bromine-antimony, but this formulation design also brings great benefits to the application of flame-retardant polyamide materials. There are some problems: 1. The bromine-antimony compound system has excellent carbon-forming properties, which will have a certain negative impact on the CTI of brominated flame-retardant polyamide materials; 2. Antimony-containing flame retardants will The production of gas such as antimony tribromide not only has a certain corrosive effect on instruments and equipment, but also causes great harm to the environment and human health. Some countries and regions have issued relevant laws and regulations to control the use of antimony

[0005] At this stage, although some low-antimony or antimony-free brominated flame-retardant polyamide solutions have appeared, the flame-retardant efficiency of these solutions is still slightly insufficient compared with bromine-antimony systems, and less attention has been paid to the CTI performance of materials , so that the application of these non-antimony flame retardant solutions in the electrical and electronic fields has potential risks

Images