Intercepting type antirust film and preparation method thereof

Abstract

The invention relates to an intercepting antirust film and a preparation method thereof. The antirust film is formed by mixing and granulating low-density polyethylene, nano metal powder, nano montmorillonite and a corrosion inhibitor, and then blowing the film. The preparation method comprises the following steps of: carrying out extrusion granulation on the low-density polyethylene, the nano metal powder and the nano montmorillonite according to the mass%age of (75-94%): (2.5-10%): (1-8%) by a double-screw extruder to serve as a first master batch; carrying out extrusion granulation on the low-density polyethylene and the vapor phase corrosion inhibitor by the double-screw extruder according to the mass%age of (80-95%): (5-20%) to serve as a second master batch, and blowing the first master batch, the second master batch and the low-density polyethylene by a blow molding machine according to the mass%age of (5: 5: 90) to prepare the intercepting antirust film. The intercepting antirust film prepared by the method has good blocking property and good heat resistance and water resistance, and also has high-efficiency corrosion prevention effect.

Description

technical field [0001] The invention relates to the field of antirust film packaging, in particular to an intercepting antirust film and a preparation method. Background technique [0002] With the development of science and technology, the utilization rate of metal in industrial production is getting higher and higher, but metal will inevitably have problems such as rust during use, which will directly or indirectly cause various serious losses and seriously affect the order of industrial production. It may also threaten the safety of people's lives and property. Due to the occurrence of rust and other problems, the service life of various machinery and construction facilities has been greatly reduced, and unnecessary secondary investment has increased; at the same time, many safety hazards have also arisen during the use of equipment. Therefore, the anti-rust problem is a major issue related to people's production and life and social and economic development. Patent appl...

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the problems of poor physical strength and anti-rust performance in the prior art, the present invention relates to an intercepting anti-rust film, comprising: the anti-rust film is composed of 5% of the first masterbatch and 5% by weight % of the second masterbatch and 90% of additives; the first masterbatch consists of 75-94% of low-density polyethylene, 2.5-10% of nano-metal powder, and 1-8% of nano-montmorillonite and 2.5-10% of a gas-phase corrosion inhibitor; the weight ratio of the second masterbatch is composed of 80-95% of low-density polyethylene and 5-20% of a gas-phase corrosion inhibitor; the additive is a low-density polyethylene