Preparation method of nano modified polypropylene board

Abstract

The invention relates to the technical field of polymer composite materials, in particular to a preparation method of a nano modified polypropylene board. The preparation method has the advantages that the nano modified polypropylene board is prepared by using molten modified polypropylene as the base material, modified nano mixed powder dispersion liquid and modified basalt fibers as the modifiers and maleic anhydride grafted polypropylene, calcium carbonate, citric acid and the like as auxiliaries; the polypropylene is modified first, then the maleic anhydride grafted polypropylene is addedinto the polypropylene, a hydroxide solution is used to perform surface modification on the basalt fibers to enhance the affinity of the basalt fibers with nano particles, butyl titanate and anhydrousethanol are subjected to mixing and stirring reaction under the effect of a stabilizer to obtain gel, plant liquid is extracted from phoenix tree leaves, nano zinc oxide powder is evenly dispersed onthe surface of nonpolar base material under a polar adsorption effect so as to lower ultraviolet strength in the irradiation direction, the aging resistance of the polypropylene board is further increased, and promising application prospect is achieved.

Description

technical field [0001] The invention relates to the technical field of polymer composite material preparation, in particular to a method for preparing a nano-modified polypropylene plate. Background technique [0002] Polypropylene (PP) is a thermoplastic resin obtained by polymerizing propylene. Polypropylene (PP) sheet is a plastic sheet made of PP resin with various functional additives through extrusion, calendering, cooling, cutting and other processes. Polypropylene sheet is odorless, non-toxic and tasteless in line with national health standards. It has a low density and is the lightest type of general-purpose plastic. It can be used without deformation for a long time at 100 ° C. It also has excellent electrical insulation properties and chemical stability. It hardly absorbs water, and has no effect in contact with most chemicals. At present, polypropylene sheet has been widely used in various fields of packaging and daily life such as industry, agriculture, medica...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention: the current common polypropylene sheet has poor wear resistance, low impact strength, poor aging resistance, and is easy to burn. The compatibility of inorganic fillers is poor, which limits its application as raw materials or special materials for injection molding, fibers, films and other products, and provides a preparation method for nano-modified polypropylene sheets

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