Halogen-free flame-retardant polypropylene material and preparation method thereof

Abstract

The invention discloses a halogen-free flame-retardant polypropylene material and a preparation method thereof. The halogen-free flame-retardant polypropylene material comprises components in parts by weight as follows: 100 parts of polypropylene resin, 20-35 parts of a halogen-free composite flame retardant, 5-20 parts of a toughening agent and 0.05-0.12 parts of a complex antioxidant, wherein the halogen-free composite flame retardant comprises diphosphonate piperazine, pentaerythritol diphosphate melamine salt, melamine urate and organic montmorillonite in the weight ratio being (5-20) : (5-20) : (1-5) : (1:5). According to the halogen-free flame-retardant polypropylene material, a halogen-free composite flame retardant system comprises diphosphonate piperazine, pentaerythritol diphosphate melamine salt, melamine urate and organic montmorillonite and has an excellent flame-retardant synergistic effect and excellent high-temperature resistance, particularly, hydrolysis-resistant performance can be acquired without any treatment, and the flame retardant system is not easily hydrolyzed in the forming process.

Description

technical field [0001] The invention relates to a polymer material and a preparation method thereof, in particular to a halogen-free flame-retardant polypropylene material and a preparation method thereof. Background technique [0002] Polypropylene is widely used in the manufacture of components such as electronic appliances, auto parts, and modern office supplies due to its good heat resistance, low water absorption, and high comprehensive mechanical properties. However, due to the disadvantage of flammability of polypropylene, its application in some fields is limited. [0003] Currently used flame retardant polypropylene materials include halogen / antimony flame retardant polypropylene and halogen-free flame retardant polypropylene materials. The former type of flame-retardant polypropylene is prone to secondary disasters due to thermal cracking and a large amount of corrosive toxic gases and smoke generated during combustion. Therefore, according to the application and...

AI Technical Summary

Problems solved by technology

This document uses a hyperdispersant with a special structure in combination with stearic acid and oxidized polyethylene wax to effectively treat the surface with piperazine pyrophosphate, so as to achieve the effect of resistance to hydrolysis and non-migration, which not only greatly increases the production cost, but also increases the production cost. The production process is affected, which affects the production efficiency

Images