Flame-retardant polyolefin composition and preparation method thereof

Abstract

The invention discloses a flame-retardant polyolefin composition which comprises the following components in parts by weight: 100 parts of polyolefin resins, 0.5-10 parts of tris(tribromoneopenthyl) phosphate, 0.5-10 parts of a phosphorus based flame retardant and 0.1-2 parts of a flame retardant synergist. The phosphorus based flame retardant is selected from at least one of hypophosphite, phosphate and polyphosphates. The flame-retardant polyolefin composition disclosed by the invention has the advantages of excellent flame-retardant property, surface gloss, transparency and the like, and particularly under the condition that the tris(tribromoneopenthyl) phosphate is compounded with the phosphate and the flame retardant synergist, the surface gloss and the transparency are excellent.

Description

technical field

[0001] The invention relates to the technical field of polymers, in particular to a flame-retardant polyolefin composition and a preparation method thereof. Background technique

[0002] Polyolefin resins include polyethylene, polypropylene, polyvinyl acetate and various olefin copolymers, among which polypropylene has become one of the most widely used general-purpose plastics due to its excellent comprehensive performance, good cost performance, and wide processing and molding conditions. one. Most polyolefin resins are flammable materials. For example, the limiting oxygen index of polypropylene is 17-18%. Flame retardant modification must be carried out.

[0003] The flame retardants used for polyolefins are mainly divided into brominated flame retardants and halogen-free flame retardants. In the existing flame-retardant modified polyolefins, in order to meet the requirements of halogen-free, it is necessary to choose to add phosphorus, nitrogen or other...

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