Nylon modified material and preparation method thereof

Abstract

The invention provides a nylon modified material product and a preparation method thereof. The nylon material comprises nylon, nano material disperse modifier, styrene / butyl acrylate binary grafting modified ethylene-propylene rubber, nano attapulgite, 2-5 parts of nano apatite whisker, 0.1-2 parts of antioxidant and 0.1-5 parts of processing assistant. The nylon modified material provided by the invention can prevent the aggregation of the nano material, and has favorable mechanical properties.

Description

technical field [0001] The invention relates to a nylon modified material, in particular to a nylon modified material with excellent mechanical properties and a preparation method thereof. Background technique [0002] Nylon is an engineering plastic with a long history and a wide range of uses. It has good physical and mechanical properties, including excellent mechanical properties, heat resistance, wear resistance, chemical resistance and self-lubrication, and it is easy to process. In the past ten years, the average annual growth rate of nylon resin for engineering plastics is about 8%, and it is widely used in automobile, electrical and electronic, packaging, machinery, construction and other industries, especially the Chinese market. Great room for development. [0003] In order to improve the material properties and overcome the shortcomings of nylon materials, glass fiber or other fillers are generally used in the industry to be filled and reinforced to improve its ...

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Problems solved by technology

[0006] The research on nano-hydroxyapatite whiskers began in the 1990s, and its chemical formula is Ca 10 (PO 4 ) 6 (OH) 2 (referred to as HA or HAP), widely used in the field of composite material reinforcement, such as the composite reinforcement of biomedical materials, but it has not been reported to apply it to the performance enhancement of polymer materials

[0007] CN101768355A discloses a method for preparing attapulgite / nylon 6 nanocomposites using anion ring-opening method, which is used to increase the heat resistance of nylon, but its preparation adopts in-situ polymerization and ultrasonic dispersion technology, which increases The complexity of the preparation process, on the other hand, cannot guarantee the uniformity of the distribution of nano-attapulgite

Similarly, CN101235198A discloses a method for preparing nylon 6 / attapulgite nanocomposites in situ by reactive extrusion, wherein the in-situ polymerization method in which nano attapulgite and polymer reaction raw materials are added simultaneously, and twin-screw extrusion The shearing effect of the extruder screw helps the dispersion of the nano-attapulgite material, but also cannot ensure the uniformity of the distribution of the nano-material, and does not significantly enhance the mechanical properties of the nylon material.

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