A kind of superhydrophobic self-cleaning PVC composite material and preparation method thereof

Abstract

The invention provides a superhydrophobic self-cleaning PVC composite material and a preparation method thereof, and relates to the field of new materials and processing technology. The composite material comprises the following components in parts by weight: 100 parts of PVC, 30-100 parts of polytetrafluoroethylene, 3-6 parts of heat stabilizer, 0.1-0.5 parts of internal lubrication, 0.5-2 parts of external lubrication, 1-10 parts of chlorinated polyethylene, 1-15 parts of processing aid. The method is as follows: uniformly mix at high speed according to the weight fraction; extrude the mixed material into sheet material, the processing temperature range is 170~210°C; perform grinding surface treatment on the high temperature sheet just out of the die. The super-hydrophobic self-cleaning PVC composite material prepared by the invention has a simple and convenient method, is environmentally friendly, can be processed and shaped at one time, and is suitable for industrial production.

Description

technical field [0001] The invention relates to a new material and a processing method, in particular to a superhydrophobic self-cleaning PVC composite material and a preparation method thereof. Background technique [0002] Superhydrophobic materials have many unique surface properties, such as self-cleaning, anti-corrosion, superhydrophobicity, etc., so they have broad application scenarios in production and life, such as anti-fog and anti-scaling on glass surfaces, water collection in deserts, self- Clean building materials, waterproof and anti-fouling of textiles, and waterproof and anti-fouling treatment. In recent years, as superhydrophobic materials have attracted more and more attention, artificially prepared superhydrophobic materials have emerged, such as superhydrophobic coatings, superhydrophobic films, superhydrophobic gels, superhydrophobic fabrics, superhydrophobic metal surfaces, etc. . However, studies on superhydrophobicity of commonly used general-purpos...

AI Technical Summary

Problems solved by technology

For example, PVC drainage pipes, the impurities in the discharged sewage are easy to adhere to the inner wall of the pipe to form dirt, which will increase the fluid resistance of the pipe and reduce the sewage discharge capacity.

[0004] At present, most methods to improve the hydrophobicity of materials are surface spraying with super-hydrophobic coating or simple surface treatment, but the coating is easy to peel off and has a short service life; surface treatment mostly uses etching methods, which cause relatively large environmental pollution