Low-halogen flame-retardant PP (polypropylene) material as well as preparation method and application thereof

Abstract

The invention discloses a low-halogen flame-retardant PP (polypropylene) material as well as a preparation method and application thereof, and belongs to the technical field of polymer modified materials. The low-halogen flame-retardant PP material is prepared from the following components in parts by weight: 80 to 98 parts of PP resin, 0.5 to 3 parts of phosphorus-nitrogen flame retardant and 0.025 to 0.1 part of halogen flame retardant, and the bromine content of the halogen flame retardant is 200 to 900 ppm. According to the low-halogen flame-retardant PP material, the use amount of the halogen-containing flame retardant is low, the low-halogen requirement is met, the problem of environmental pollution of the halogen-containing flame retardant is solved, the halogen-containing flame retardant with the bromine content of 200-900 ppm and the phosphorus-nitrogen flame retardant are compounded, the low-halogen flame-retardant PP material can have the good impact property retention rate and the good flame retardant property, and the impact property retention rate is 85% or above.

Description

technical field [0001] The invention relates to the technical field of polymer modified materials, and more particularly, to a low-halogen flame-retardant PP material and a preparation method and application thereof. Background technique [0002] Polypropylene (PP) is a thermoplastic synthetic resin with excellent performance. It has the advantages of excellent physical properties, chemical resistance, easy molding and processing. At the same time, it is light in weight and low in price. , packaging and many other fields have been widely used, with the continuous improvement of environmental protection and safety requirements, flame retardant PP has also been widely used. [0003] At present, 80% of flame retardant PP is a halogen flame retardant. During the combustion process, a large amount of smoke and toxic corrosive gases are generated, which affect human health and pollute the environment. The development of halogen-free or low-halogen antimony-free flame retardant PP ...

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Problems solved by technology

[0005] The purpose of the present invention is to overcome the defects and deficiencies of existing polypropylene PP materials that cannot maintain a good impact strength retention rate while improving flame retardancy, and provide a low-halogen flame-retardant PP material, which can be used through phosphorus-nitrogen flame retardants and The compounding of halogenated flame retardants can effectively maintain the impact performance retention rate of PP materials while improving the flame retardant performance of PP materials

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