Anti-friction polypropylene material and preparation method thereof

Abstract

The invention discloses an anti-friction polypropylene material and a preparation method thereof, belonging to the technical field of the anti-friction polypropylene materials. An anti-friction polypropylene composite material with relatively good wear resistance, rigidity and heat resistance is prepared by compounding a calcium carbonate crystal whisker with a certain length-diameter ratio and aramid pulp. According to the anti-friction polypropylene material disclosed by the invention, a high-anti-shock polypropylene copolymer is adopted as base resin, and the calcium carbonate crystal whisker and the aramid pulp which are helpful for improving the anti-friction performance of the material are adopted for increasing the rigidity of the material so as to ensure that the material can obtain good anti-friction performance and rigidity at the same time. By compounding the calcium carbonate crystal whisker and the aramid pulp, the anti-friction polypropylene material ensures that the rigidity, wear resistance and heat resistance of the material can be improved to a certain extent, and the comprehensive performance of the material can be more balanced.

Description

technical field [0001] The invention belongs to the technical field of friction-resistant polypropylene materials, in particular to a method for preparing a polypropylene composite material with the characteristics of wear resistance, high rigidity and high heat resistance. Background technique [0002] As a general-purpose plastic, polypropylene has been widely used in furniture, home appliances, automobiles, aerospace and other fields. However, due to the rigidity and low heat resistance of polypropylene, it is difficult to meet various practical requirements of various industries. When polypropylene is used as a friction material, it has the fatal weakness of prominent low-temperature brittleness, high friction coefficient and high wear rate. Aiming at this problem, people try to adopt various methods to solve it. Application No. 201210214387.1 discloses a scratch-resistant polypropylene material and its preparation method. The method improves the scratch resistance of t...

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Problems solved by technology

Application No. 201210214387.1 discloses a scratch-resistant polypropylene material and its preparation method. The method improves the scratch resistance of the material by adding wear-resistant carbon black. However, the appearance of the material is greatly affected by the addition of carbon black, which limits the Its scope of application; application number 201310189025.6 discloses a wear-resistant PP / PE composite material. This method mainly uses inorganic nanomaterials to improve the wear resistance of PP / PE plastic alloy materials, but the use of inorganic nanomaterials makes the cost higher

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