Fluorine-containing auxiliary agent and product thereof

Abstract

The invention relates to the technical field of polymer processing, in particular to a fluorine-containing auxiliary and a product thereof. The fluorine-containing auxiliary agent is prepared from a fluorine-containing mixture and an anti-yellowing agent; the fluorine-containing mixture is added, in the polymer processing process, the lubricating effect is achieved, melt fracture is reduced, so that the brightness and smoothness of a product are improved, the fluorine-containing mixture and the anti-yellowing agent jointly act, surface performance is improved, meanwhile, migration of the anti-yellowing agent to the surface of an object is reduced, and the anti-yellowing performance is more sufficiently achieved; the fluorine-containing auxiliary agent is obtained by adding chitosan grafted acrylic ester and carrying out melt blending with a fluorine-containing mixture and an anti-yellowing agent, so that dispersion is promoted, serious yellowing and even breakage of partial areas are reduced, and long-term color fading is avoided. When the fluorine-containing auxiliary agent provided by the invention is used for processing macromolecules, especially macromolecules with low melt index, the consumption of electric energy can be reduced, the production speed can be increased, and the prepared product has high additional value.

Description

technical field [0001] The present invention relates to the technical field of polymer processing, and more particularly, to a fluorine-containing auxiliary and its products. Background technique [0002] As a commonly used material in daily life, polymer materials can be used in various fields such as daily chemicals, medicine, building materials, etc. PP, PE, PVC, PLA, PB, mPE, etc. are all common thermoplastic polymers. However, pure polymer materials are prone to problems such as extrusion and cracking during processing. [0003] And for thermoplastic polymers, especially polymers with low melt index, molecular breakage and yellowing are prone to occur during exposure to light, heat, pH or long-term storage. In order to improve the anti-yellowing performance, anti-yellowing agents can be added. However, with the prolongation of use or storage time, there will still be problems such as yellowing. [0004] In addition, during long-term use or storage, the mechanical prop...

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Problems solved by technology

[0002] As commonly used materials in daily life, polymer materials can be used in various fields such as daily chemicals, medicine, building materials, etc. PP, PE, PVC, PLA, PB, mPE, etc. are common thermoplastic polymers, which can be extruded by screw, heated Processing and preparation in various ways such as pressing, but pure polymer materials are prone to problems such as extrusion and cracking during processing

[0003] And for thermoplastic polymers, especially those with low melt index, they are prone to molecular fracture and yellowing when exposed to light, heat, pH or long-term storage. In order to improve the anti-yellowing performance, anti-yellowing agents can be added etc., but with the prolongation of use or storage time, there will still be problems such as yellowing

[0004] In addition, during long-term use or storage, the mechanical properties of materials may also change, resulting in creep and cracking, etc., which will adversely affect the service life of polymer materials.