A kind of degradable antirust masterbatch and preparation method thereof, degradable gas phase antirust film containing the same and application

Abstract

The invention provides a degradable antirust masterbatch and a preparation method thereof, a degradable gas phase antirust film comprising the same, and application thereof. In terms of mass percentage, the degradable antirust masterbatch includes the following components: PLA: PLA 30‑50%; PBAT 20‑30%; Compound Corrosion Inhibitor 20‑35%; Auxiliary 5‑10%. The degradable gas-phase rust preventive film provided by the invention has excellent rust preventive function and is degradable at the same time, and the degradation products are carbon dioxide and water, which do not pollute the environment.

Description

technical field [0001] The invention belongs to the technical field of metal rust prevention, and relates to a degradable rust-proof master batch, a preparation method thereof, a degradable gas-phase rust-proof film comprising the same, and applications. Background technique [0002] Anti-rust film is the abbreviation of VCI anti-rust plastic film (VCI anti-rust film), which is a new generation of innovative high-tech products based on the combination of polymer materials and VCI technology. After packaging and sealing the rust-proof metal objects with rust-proof film (which can also be made into various plastic bag shapes), the VCI contained in the film begins to sublime and volatilize the rust-proof gas factor, which diffuses and penetrates to the surface of the rust-proof item and absorbs it. On the surface, a single-molecule-thick dense protective film layer is formed to isolate various factors that induce rust from contact with the surface of the rust-proof article, the...

AI Technical Summary

Problems solved by technology

Photodegradation is to add a photosensitizer to polyethylene, which decomposes into fine particles and enters the soil under long-term light conditions. The fine particles of polyethylene materials are difficult to degrade in the soil, but it will deteriorate the soil; biodegradation is to add starch to increase The degradation efficiency of plastics, the use of starch-based degradation materials to produce gas-phase anti-rust films will affect the physical properties of the film, so it is not suitable for the production of anti-rust films; chemical degradation is to add inorganic materials (such as calcium carbonate, etc.) to polyethylene, the same Use non-degradable polyethylene material as the carrier, which will pollute the environment

[0005] CN107868421A discloses a degradable antirust bag and a preparation method thereof, comprising the following components in parts by weight: 60-100 parts of polylactic acid, 20-100 parts of animal and plant polysaccharides, 10-20 parts of antirust agent, modifier 5-10 parts, 1-5 parts of coupling agent, 1-5 parts of plasticizer, 0.1-1 part of silicone lubricant; 10-20 parts of halogen-free flame retardant and 1-3 parts of moisture-proof agent; the patent application The anti-rust bag provided has a degradable function, but its physical properties are poor

CN103756273A discloses an environmentally friendly degradable antirust film and a preparation method thereof. The antirust film includes the following components in parts by weight: 50-70 parts of polylactic acid, 45-60 parts of EVA resin, octenyl succinic acid 30-50 parts of starch ester, 1-2 parts of rosin resin, 0.5-1 part of microcrystalline paraffin, 0.1-0.5 part of 2-(2'-hydroxy-5'-methylphenyl)benzotriazole, 4- (N,N-Di-n-butyl)-aminomethylmorpholine 6-13 parts, urea 2-3 parts, ammonia water 2.5-4 parts, antioxidant 0.5-2 parts, antistatic agent 1-2 parts, water 1-2 parts; the anti-rust film provided by this patent application has a good gas-phase anti-rust function, and can be automatically degraded within 60-90 days, but some materials cannot be degraded, which will still cause some harm to the environment

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