A kind of anti-ultraviolet barrier film and preparation method thereof

A technology of anti-ultraviolet and barrier film, applied in the direction of chemical instruments and methods, synthetic resin layered products, layered products, etc., can solve the problems of overall strength decrease and tensile strength decrease

Active Publication Date: 2020-12-11
中塑新材料科技(杭州)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, the high-barrier film in the prior art will lead to a decrease in tensile strength after long-term use, especially after being exposed to sunlight, which will cause a significant decrease in overall strength.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] An anti-ultraviolet barrier film, a composite film obtained by co-extruding A1 / B1 / C / B2 / A2 / D / A3 / B3 / E1 / E2 / E3 structures;

[0044] E3 is the outer layer that is in contact with the outside world during packaging, and E1, E2, and E3 together form an anti-ultraviolet layer. Among them, the thickness ratio of E1, E2, and E3 is 1:1:2. Three layers of ultraviolet protection layers can improve the anti-ultraviolet Persistence and barrier properties. The anti-ultraviolet layer includes by weight components: 30 parts of polyethylene, 15 parts of polytetrafluoroethylene, 10 parts of hexafluoroisopropanol, 4 parts of dicumyl peroxide, 5 parts of sodium hydroxymethyl cellulose, 3 parts of Nano-titanium dioxide, 2 parts of nano-zinc oxide, 1 part of free radical quencher, 4 parts of curing agent I (m-phenylenediamine), 8 parts of ultraviolet absorbing microbead solution, 1 part of oleamide, 5 parts of hydroxyethylidene diphosphonic acid , 13 parts of methanol solvent; among them, pol...

Embodiment 2

[0065] An anti-ultraviolet barrier film, a composite film obtained by co-extruding A1 / B1 / C / B2 / A2 / D / A3 / B3 / E1 / E2 / E3 structures;

[0066] E3 is the outer layer that is in contact with the outside world during packaging, and E1, E2, and E3 together form an anti-ultraviolet layer. Among them, the thickness ratio of E1, E2, and E3 is 1:1:2. Three layers of ultraviolet protection layers can improve the anti-ultraviolet Persistence and barrier properties. The anti-ultraviolet layer includes by weight components: 35 parts of polyethylene, 19 parts of polytetrafluoroethylene, 11.5 parts of hexafluoroisopropanol, 5 parts of dicumyl peroxide, 6.5 parts of sodium hydroxymethyl cellulose, 3.5 parts of Nano-titanium dioxide, 2.5 parts of nano-zinc oxide, 2 parts of free radical quencher, 5 parts of curing agent I (m-phenylenediamine), 9 parts of ultraviolet absorbing microbead solution, 1.5 parts of oleamide, 6 parts of hydroxyethylidene diphosphonic acid , 19 parts of methanol solvent; amo...

Embodiment 3

[0087] An anti-ultraviolet barrier film, a composite film obtained by co-extruding A1 / B1 / C / B2 / A2 / D / A3 / B3 / E1 / E2 / E3 structures;

[0088]E3 is the outer layer that is in contact with the outside world during packaging, and E1, E2, and E3 together form an anti-ultraviolet layer. Among them, the thickness ratio of E1, E2, and E3 is 1:1:2. Three layers of ultraviolet protection layers can improve the anti-ultraviolet Persistence and barrier properties. The anti-ultraviolet layer includes by weight components: 40 parts of polyethylene, 23 parts of polytetrafluoroethylene, 13 parts of hexafluoroisopropanol, 6 parts of dicumyl peroxide, 8 parts of sodium hydroxymethyl cellulose, 4 parts of Nano-titanium dioxide, 3 parts of nano-zinc oxide, 3 parts of free radical quencher, 6 parts of curing agent I (m-phenylenediamine), 10 parts of ultraviolet absorbing microbead solution, 2 parts of oleamide, 7 parts of hydroxyethylidene diphosphonic acid , 25 parts of methanol solvent; among them, p...

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Abstract

The invention discloses an anti-ultraviolet barrier film and a preparation method thereof, and belongs to the technical field of barrier film materials. The barrier film is a composite film obtained by co-extrusion of A1 / B1 / C / B2 / A2 / D / A3 / B3 / E1 / E2 / E3 structures, wherein E3 is an outer layer that is in contact with the outside during packaging, and E1, E2, and the E3 form an anti-ultraviolet layer; A1 is an inner layer that is in contact with a package material during packaging, and the A1, A2, and A3 are base material layers; C is a toughening layer, and the entire tensile strength of the barrier film is increased by addition of a silk fibroin-polyurethane hydrogel and a modifier; D is a gas barrier layer, and the problem that the gas barrier layer has reduced gas barrier performance under high-humidity conditions is greatly improved by addition of hydroxyl-terminated polybutadiene and isocyanate; and B1, B2, and B3 are adhesive layers, and the wettability degree is increased by additionof high-energy refined fish oil. In summary, the anti-ultraviolet barrier film disclosed by the invention has the advantages of high aging resistance, a high ultraviolet light absorption rate, and high tensile strength.

Description

technical field [0001] The invention belongs to the technical field of barrier film materials, and in particular relates to an anti-ultraviolet barrier film and a preparation method thereof. Background technique [0002] Ultraviolet light refers to electromagnetic waves with a wavelength between 10-400 nanometers, which can kill bacteria and promote the synthesis of vitamin D in the human body. However, excessive ultraviolet light irradiation can damage the skin of the human body and cause cancer, and it is directly irradiated on the eyes Can cause eye damage. In addition, the irradiation of ultraviolet light on the surface of polymer materials will lead to photodegradation, which will cause the material to lose luster, discoloration, embrittlement and cracks, greatly reducing the strength and service life of the material, especially the polymer-based structure. Materials without effective UV protection are at risk of sudden failure. In recent years, due to the gradual exp...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B7/12B32B27/08B32B27/20B32B27/30B32B27/32B32B27/34B32B33/00B29B7/00
CPCB29B7/002B32B7/12B32B27/08B32B27/20B32B27/306B32B27/32B32B27/322B32B27/34B32B33/00B32B2250/24B32B2307/304B32B2307/54B32B2307/552B32B2307/71B32B2307/714B32B2307/7244
Inventor 杨世京
Owner 中塑新材料科技(杭州)有限公司
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