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Formed film capable of automatically absorbing moisture and improving toughness

A film and toughness technology, applied in the field of formed film, can solve the problems of decreased toughness, brittle film, affecting the performance of formed film, etc., and achieve the effect of reliable and convenient use and good humidification effect

Pending Publication Date: 2021-05-04
刘烈新
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the molding process of composite materials, a large number of forming films are used. This forming film needs a certain humidity to ensure the stability of its properties. If the surface is too dry, it is easy to make the film brittle and reduce its toughness. Steam is used for wet treatment, but during transportation and use, it is often exposed to a dry environment, which greatly affects the performance of the formed film

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0008] A molded film with automatic moisture absorption and increased toughness of the present invention is covered with a layer of superabsorbent resin on the surface of the molded film, and the superabsorbent resin is bonded to the surface of the molded film through an adhesive, or by blending and co-extruding It is integrated with the forming film. The super absorbent resin is SPA. The main chemical composition of SPA is low cross-linked polyacrylic acid sodium salt, which belongs to a new type of functional polymer water-absorbing material. This polymer water-absorbing material SPA can effectively absorb the air Water molecules are integrated into the surface of the formed film to adjust the humidity of the surface of the formed film.

[0009] Through experimental comparison, it is found that ordinary films and formed films bonded with superabsorbent resin have obvious differences in water absorption, elongation and other properties. The following table shows the comparativ...

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PUM

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Abstract

The invention relates to the technical field of composite materials, in particular to a formed film capable of automatically absorbing moisture and improving toughness. Compared with the prior art, the formed film capable of automatically absorbing moisture and improving toughness is characterized in that the surface of the formed film is covered with a layer of super absorbent resin SPA, water molecules in air are absorbed through the super absorbent resin SPA, therefore, the surface of the formed film is humidified, the toughness of the formed film is not influenced by the environment and is hardly influenced by the use and transportation environment, and the formed film has the advantages of being good in humidifying effect, reliable and convenient to use and the like.

Description

technical field [0001] The invention relates to the technical field of composite materials, in particular to a molded film with self-absorbing moisture that can increase toughness. Background technique [0002] In the molding process of composite materials, a large number of forming films are used. This forming film needs a certain humidity to ensure the stability of its properties. If the surface is too dry, it is easy to make the film brittle and reduce its toughness. Steam is used for wet treatment, but during transportation and use, it is often exposed to a dry environment, which greatly affects the performance of the formed film. Contents of the invention [0003] In order to solve the defects and problems existing in the moisturizing of the formed film in the prior art, a formed film with automatic moisture absorption and increased toughness is provided. [0004] The technical solution adopted by the present invention to solve the technical problem is: a molded film...

Claims

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Application Information

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IPC IPC(8): B32B27/30B32B27/06B32B7/12B32B33/00
CPCB32B27/308B32B27/06B32B7/12B32B33/00B32B2307/726B32B2307/558
Inventor 刘烈新
Owner 刘烈新