High heat-resistant, halogen-free and flame-retardant type jute fiber-reinforced polypropylene composite material and preparation method thereof

Abstract

The invention discloses a high heat-resistant, halogen-free and flame-retardant type jute fiber-reinforced polypropylene composite material and a preparation method thereof. The jute fiber-reinforced polypropylene composite material is prepared from the following raw materials in parts by weight: 30 to 80 parts of polypropylene, 10 to 40 parts of jute fiber, 1 to 5 parts of whisker, 1 to 10 parts of halogen-free flame-retardant agent, 1 to 10 parts of compatilizer, 1 to 2 parts of coupling agent, 0.1 to 2 parts of antioxidant, and 0.2 to 1 part of lubricating agent. The jute fiber-reinforced polypropylene composite material has the advantages that the jute fiber with low cost, rich resource, high specific modulus and low density is used for preparing the vehicle reinforced polypropylene composite material, so that the production cost is reduced; by adding a certain amount of alkaline type magnesium sulfate whiskers into the polymer composite material on the basis of original basic formula, the high temperature-resistant property is improved; by adding a smaller amount of novel phosphor-containing organosilsesquioxane halogen-free flame-retardant agent, the flame-retardant property of the jute fiber-reinforced polypropylene composite material is improved.

Description

technical field [0001] The invention belongs to the technical field of hemp fiber reinforced composite materials, and relates to a high heat-resistant halogen-free flame-retardant hemp fiber reinforced polypropylene composite material and a preparation method thereof. Background technique [0002] With the rapid development of automotive composite materials and people's increasing concern for environmental resources, how to prepare a lightweight and green automotive material has become a research hotspot for the entire automotive materials. The use of traditional glass fiber, synthetic fiber and carbon fiber to prepare reinforced composite materials, while giving people convenience, also brings new environmental problems such as non-recyclable and resource shortage. As a kind of natural plant fiber, hemp fiber is a renewable ecological and environmental protection material. Because of its rich source, it has the advantages of environmental friendliness, easy degradation, low...

AI Technical Summary

Problems solved by technology

As a general-purpose thermoplastic resin with the fastest growth rate at present, polypropylene also has the characteristics of low strength, poor dimensional stability of products, and poor heat resistance. Therefore, the performance of polypropylene composite materials prepared by hemp fiber reinforcement is also It will have a certain degree of sensitivity to temperature, and some studies have also shown that the performance of hemp fiber reinforced polypropylene composites decreases to a greater extent with the increase of temperature

At the same time, as a plant fiber, hemp fiber is easy to burn, and polypropylene itself is relatively flammable, and dripping occurs when burning, which is easy to cause fire, which limits its practical application. Therefore, in the preparation of hemp fiber reinforced For polypropylene materials, in order to further improve the performance of the material and expand its application range in home appliances, electronics, automotive interior and exterior trim, etc., it is necessary to consider the heat resistance and flame retardancy of hemp fiber reinforced polypropylene composite materials

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