Polypropylene flame-retardant material capable of being used for producing concealed bottom box and preparation method thereof

Abstract

The invention discloses a polypropylene flame-retardant material capable of being used for producing a concealed bottom box and a preparation method of the polypropylene flame-retardant material. Thepolypropylene flame-retardant material comprises the following components in parts by weight: 60-100 parts of polypropylene resin, 2-5 parts of a conventional flame retardant, 20-40 parts of an inorganic enhanced flame retardant, 2-5 parts of a toughening agent, 0.2-0.6 part of an antioxidant and 0.5-1.0 part of a lubricant. The polypropylene flame-retardant material disclosed by the invention iscompletely free of corrosion to a mold, small in damage to a screw rod of an injection molding machine, wide in processing temperature range, stable in product color and lighter in product piece weight, is more suitable for a low-temperature environment after toughening modification, and has a higher vicat softening point and lower cost compared with PVC. The material can be applied to the field of electrical products such as extension sockets, power boxes and switch backseats, and can completely meet various standard requirements in the field of electrical application.

Description

technical field [0001] The invention relates to the technical field of polypropylene flame-retardant materials, in particular to a polypropylene flame-retardant material that can be used in the production of concealed bottom boxes and a preparation method thereof. Background technique [0002] At present, the concealed bottom box is widely used in the field of home decoration and electrical engineering. The commonly used material is mineral-filled PVC compound. The range is narrow, the color of the product is unstable, the product has high low-temperature brittleness and is not suitable for low-temperature environments, and the low Vicat softening point is not suitable for places with high room temperature. Therefore, it is necessary to develop a product that does not corrode the mold at all, has little damage to the screw of the injection molding machine, has a wide processing temperature range, stable product color, lighter product weight, lower cost, and is more suitable ...

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Problems solved by technology

[0002] At present, the concealed bottom box is widely used in the field of home decoration and electrical engineering. The commonly used material is mineral-filled PVC compound. Narrow range, unstable product color, high cold brittleness at low temperature, not suitable for low temperature environment, low Vicat softening point, not suitable for places with high room temperature

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