Anti-whitening flame-retardant polypropylene ribbon and preparation method thereof

Abstract

The invention relates to an anti-whitening flame-retardant polypropylene ribbon and a preparation method thereof. The polypropylene ribbon comprises the following components in parts by weight: 60-80parts of polypropylene, 7-30 parts of a second component polymer, 10-20 parts of a flame-retardant toughening agent, 0.5-3 parts of an anti-whitening agent and 1-3 parts of other aids. The flame-retardant toughening agent is creatively prepared through reaction and co-extrusion and is compounded with a stress whitening resistant agent, so the special requirements on mechanical performance, low-temperature toughness, damp and heat resistance, whitening resistance and the like are met of the ribbon while the flame-retardant requirement of the ribbon is met, and a flame retardant is not separatedout. By adopting the flame-retardant toughening agent, the problem that a traditional flame retardant is difficult to disperse in polypropylene is greatly improved, and material uniformity is powerfully improved. Meanwhile, the produced polypropylene ribbon has the characteristics of high production efficiency and easiness in demolding, and the requirement for production of 64 products in one mold or even higher production requirements are met.

Description

technical field [0001] The invention relates to an anti-whitening flame-retardant polypropylene cable tie and a preparation method thereof, belonging to the field of material technology. Background technique [0002] Polypropylene strapping has been widely used in various fields because of its good plasticity, good breaking tension, bending resistance, light specific gravity, and convenient use. During use, especially when the internal structure of home appliances is used, polypropylene cable ties are required to have flame retardant function and low smoke emission. Generally, only halogen-free flame retardants can be selected as flame retardants, but the halogen-free flame retardants currently on the market are used There are many problems when using polypropylene cable ties, for example: 1. Addition-type halogen-free flame retardants are added in a large amount, because of their poor compatibility with polypropylene systems, the produced flame-retardant cable ties have poo...

AI Technical Summary

Problems solved by technology

During use, especially when using the internal structure of home appliances, polypropylene cable ties are required to have flame retardant function and low smoke emission. Generally, only halogen-free flame retardants can be selected as flame retardants, but the halogen-free flame retardants currently on the market are used There are many problems in the production of polypropylene cable ties, such as: 1. The amount of additive-type halogen-free flame retardant is large, because of its poor compatibility with the polypropylene system, the produced flame-retardant cable ties have poor tightening force and reduced toughness , Bending whitening, etc. 2. During the use of existing halogen-free flame retardants, especially in hot and humid environments, the surface migration resistance of the material is poor, easy to precipitate, and the flame retardant effect becomes poor, causing harm to product performance

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