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High-strength rainbow film and preparation method thereof

An iridescent, high-strength technology, applied in the direction of chemical instruments and methods, flat products, and other household appliances, can solve the problems of reducing iridescent elongation at break, decreasing iridescent strength, and weak layer-to-layer bonding. Achieve the effect of increasing strength, reducing the probability of delamination, and interacting strongly

Inactive Publication Date: 2022-08-02
晋江鑫泰塑料有限公司
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  • Abstract
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  • Claims
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Problems solved by technology

[0003] However, due to the low compatibility between PP and PS, the bonding force between the layers is weak, which makes the iridescent film prone to delamination, and when the iridescent film is stretched, the layers will be separated. Debonding occurs and voids are formed, reducing the overall elongation at break of the iridescent film and reducing the overall strength of the iridescent film

Method used

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  • High-strength rainbow film and preparation method thereof

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Embodiment Construction

[0021] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. In the description of the present invention, it should be understood that the terms "up", "lower", "front "," "back", "left", "right", "top", "bottom", "inside", "outside" and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, only In order to facilitate the description of the present invention and simplify the description, it is not indicated or implied that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as a limitation of the present invention. Obviously, the described embodiments It is only a part of the embodiments of the present invention, but not all of...

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Abstract

The invention discloses a high-strength rainbow film and a preparation method thereof, and belongs to the technical field of thin films, the high-strength rainbow film comprises a plurality of A layers, B layers and C layers which are arranged by combining ACBCACB... A. The A layers comprise polystyrene resin, the B layers comprise polypropylene resin, the C layers comprise a copolymer mixture of polypropylene and polystyrene, and the copolymer mixture of the polypropylene resin and the polystyrene resin is a copolymer mixture of the polypropylene resin and the polystyrene resin. The copolymer mixture of polypropylene and polystyrene is formed by mixing polystyrene powder and modified polypropylene, and the modified polypropylene is obtained by grafting styrene on a polypropylene molecular chain through an initiator. According to the high-strength rainbow film and the preparation method thereof disclosed by the invention, the copolymer mixture of polypropylene and polystyrene has good compatibility with polypropylene and polystyrene at the same time, so that connection among the layer C, the layer A and the layer B can be increased, the layering probability of the rainbow film is reduced, stress transfer between layers is increased, and the tensile strength of the rainbow film is improved. The overall strength of the rainbow film is improved.

Description

technical field [0001] The invention relates to the technical field of thin films, in particular to a high-strength rainbow film and a preparation method thereof. Background technique [0002] Multilayer light interference film is a kind of film with light interference effect made of two or more thermoplastic transparent resins with different refractive indices through multi-layer composite co-extrusion. In the wavelength range of visible light, according to the thickness of the film It can emit different colors, which is called iridescent film commercially, but there are not many kinds of raw resin used to produce iridescent film, mainly because the raw resin generally requires a high refractive index and the refractive index difference between different raw resins is required. At present, the rainbow films produced in the world are generally PMMA / PBT, PMMA / PET, and combinations of LLDPE, LDPE, PP / propylene-ethylene copolymers, propylene homopolymers, etc., of which PP / PS i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/32B32B27/08B32B27/06C08J5/18C08L51/06C08L25/06B29D7/01
CPCB32B27/302B32B27/32B32B27/08C08J5/18B29D7/01C08J2351/06C08J2425/06
Inventor 杨新龙
Owner 晋江鑫泰塑料有限公司
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