Long glass fiber enhanced polypropylene material, and preparation method and application thereof

Abstract

The invention discloses a long glass fiber enhanced polypropylene material, which is mainly prepared from the following raw materials in parts by weight: 20 to 70 parts of polypropylene resin, 20 to 50 parts of continuous glass fiber, 3 to 10 parts of glass fiber compatilizers, 5 to 30 parts of fire retardants, 1 to 10 parts of polyethylene resin, 0.5 to 5 parts of smoke suppressors, 0.2 to 0.5 part of light stabilizers, 0.2 to 0.5 part of heat stabilizers, 0.1 to 2 parts of lubricating agents and 1 to 3 parts of color master. The invention also discloses a preparation method of the long glass fiber enhanced polypropylene material and application of the long glass fiber enhanced polypropylene material to a fan blade. The long glass fiber enhanced polypropylene material provided by the invention has the performance of flame resistance, weather resisting property and high heat resistance; when the long glass fiber enhanced polypropylene material is applied to the field of high-speed rotation blade products, the products can meet the requirements of long-time use in high-temperature high-humidity and photo-oxidation environment.

Description

technical field [0001] The invention relates to the field of polymer materials, in particular to a long glass fiber reinforced polypropylene material with weather resistance, flame retardancy and high heat resistance, its preparation method and application. Background technique [0002] Although the current lightweight and high-strength long glass fiber reinforced polypropylene material technology has developed rapidly, the application of long glass fiber reinforced polypropylene materials and their products in the electrical and electronic industry is still limited. The main reasons are: (1) conventional long glass fiber Reinforced polypropylene does not have the characteristics of UV aging resistance, flame retardancy, high heat resistance, etc., thus restricting the use environment of long glass fiber reinforced polypropylene materials; (2) During the preparation process of conventional long glass fiber reinforced polypropylene materials, it is very difficult to It is dif...

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Problems solved by technology

[0002] Although the current lightweight and high-strength long glass fiber reinforced polypropylene material technology has developed rapidly, the application of long glass fiber reinforced polypropylene materials and their products in the electrical and electronic industry is still limited. The main reasons are: (1) conventional long glass fiber Reinforced polypropylene does not have the characteristics of UV aging resistance, flame retardancy, high heat resistance, etc., thus restricting the use environment of long glass fiber reinforced polypropylene materials; (2) During the preparation process of conventional long glass fiber reinforced polypropylene materials, it is very difficult to It is difficult to ensure the uniform dispersion of glass fiber and additives in the material, that is, it is difficult to ensure that the mass distribution of each component in the long glass fiber reinforced polypropylene material is uniform, which leads to the fact that the long glass fiber material cannot be applied to high-speed rotating machines with high requirements for dynamic balance. In leaf products

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