Antibacterial halogen-free flame retardant reinforced PE/PET composite staple fiber and preparation method thereof

Abstract

The invention discloses an antibacterial halogen-free flame retardant reinforced PE / PET composite staple fiber and a preparation method thereof. The antibacterial halogen-free flame retardant reinforced PE / PET composite staple fiber is prepared from the raw materials in parts by weight: 30-50 parts of PE, 35-50 parts of PET, 8-15 parts of graphene, 10-18 parts of modified carbon nanofibers, 8-15 parts of a composite antibacterial agent, 6-10 parts of a halogen-free flame retardant, 5-10 parts of a toughening agent, 3-8 parts of a compatibilizer, 2-5 parts of an antioxidant and 0.1-2.5 parts ofother additives. The antibacterial halogen-free flame retardant reinforced PE / PET composite staple fiber is composed of selected raw materials, the content of each raw material is optimized, the PE,PET, graphene, modified carbon nanofibers, composite antibacterial agent, halogen-free flame retardant, toughening agent, compatibilizer, antioxidant and other additives with appropriate proportion are selected, the respective advantages are fully played, and mutual complementation and promotion are achieved, so that the prepared antibacterial halogen-free flame retardant reinforced PE / PET composite staple fiber has advantages of high antibacterial property, high flame retardant level, high fiber strength, excellent mechanical properties and the like.

Description

Technical field [0001] The invention relates to the technical field of polymer materials, and specifically relates to an antibacterial, halogen-free, flame-retardant reinforced PE / PET composite short fiber and a preparation method thereof. Background technique [0002] Polyethylene terephthalate (PET) is the earliest polyester material to achieve industrialization, but in the early days it was almost always used for synthetic fibers. After the 1980s, after the successful development of nucleating agents and crystallization accelerators, PET was It gradually began to be used as an engineering plastic, and together with polybutylene terephthalate (PBT) as a thermoplastic polyester, it became one of the five major engineering plastics. [0003] In recent years, PET fiber output has continued to grow. With increased industrial investment, technological breakthroughs and scale accumulation, the PET fiber industry will usher in greater development in the foreseeable future. Peopl...

AI Technical Summary

Problems solved by technology

[0006] 1. The flame retardant performance of the composite fiber is poor, easy to burn, and low in safety performance;

[0007] 2. The compatibility between the composite fibers is not good, resulting in a decrease in its mechanical properties;

[0008] 3. The toughness of the composite fiber is poor, the breaking strength is low, and the mechanical strength is not high;

[0009] 4. Composite fiber has no bactericidal function and is easy to breed bacteria

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