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A kind of high-light-transmitting heat-insulating ultraviolet-shielding polyester film and preparation method thereof

A technology of polyester film and ultraviolet rays, applied in the field of polyester film, can solve the problems of coating production method pollution, high coating cost, and large loss, and achieve low production cost, no environmental pollution, and good weather resistance

Active Publication Date: 2022-07-12
温州强润新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the cost of the coating method is high, the loss is large, and the pollution of the coating production method is serious

Method used

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  • A kind of high-light-transmitting heat-insulating ultraviolet-shielding polyester film and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] (1) Weigh the materials of the upper surface layer and the lower surface layer: 30% of polyester chips, 70% of optical grade opening agent;

[0047] The middle layer is weighed: 65% of polyester chips, 25% of thermal insulation masterbatch, and 10% of ultraviolet absorber.

[0048] (2) After the weighed upper surface layer, lower surface layer and intermediate layer materials are respectively sent to different silos for mixing, then sent to the crystallizer to crystallize the particles at 140°C, and the crystallized raw materials enter the drying tower at 120°C drying to a moisture content of less than 40 ppm to obtain pretreated raw materials;

[0049] (3) Film making

[0050] ①Extrusion: The pretreated upper surface layer, lower surface layer and intermediate layer materials are melted and filtered in three extruders respectively, and then enter the T-die head. The material flows out evenly through the automatically adjustable die lip and is a sheet-like melt; the e...

Embodiment 2

[0055] (1) The materials of the upper surface layer and the lower surface layer are weighed: 65% of polyester chips, 35% of optical grade opening agent;

[0056] The middle layer is weighed: 65% of polyester chips, 25% of thermal insulation masterbatch, and 10% of ultraviolet absorber.

[0057] (2) After the weighed upper surface layer, lower surface layer and intermediate layer materials are respectively sent to different silos for mixing, then sent to the crystallizer to crystallize the particles at 170°C, and the crystallized raw materials enter the drying tower at 150°C drying to a moisture content of less than 40 ppm to obtain pretreated raw materials;

[0058] (3) Film making

[0059] ①Extrusion: The pretreated upper surface layer, lower surface layer and intermediate layer materials are melted and filtered in three extruders respectively, and then enter the T-die head. The material flows out uniformly through the automatically adjustable die lip and is a sheet-like me...

Embodiment 3

[0064] (1) Weigh the materials of the upper surface layer and the lower surface layer: 15% of polyester chips, 30% of optical grade opening agent, 50% of thermal insulation masterbatch, and 5% of ultraviolet absorber;

[0065] The middle layer is weighed: 70% of polyester chips, 22% of thermal insulation masterbatch, and 8% of ultraviolet absorber.

[0066] (2) After the weighed upper surface layer, lower surface layer and intermediate layer materials are respectively sent to different silos for mixing, then sent to the crystallizer to crystallize the particles at 150°C, and the crystallized raw materials enter the drying tower at 170°C drying to a moisture content of less than 40 ppm to obtain pretreated raw materials;

[0067] (3) Film making

[0068] ①Extrusion: The pretreated upper surface layer, lower surface layer and intermediate layer materials are melted and filtered in three extruders respectively, and then enter the T-die head. The material flows out evenly throug...

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Abstract

The invention discloses a high-light-transmitting, heat-insulating, and ultraviolet-shielding polyester film, comprising an upper surface layer, a middle layer and a lower surface layer; the upper surface layer and the lower surface layer are composed of 15-70 percent of polyester chips and 25-70 percent of an optical-grade opening agent. 70%, thermal insulation masterbatch 0-50%, UV absorber 0-5%; the middle layer is composed of polyester chips 40-85%, thermal insulation masterbatch 10-40%, UV absorber 0-15%, blue light Absorbent 0‑10%. The infrared blocking rate of the product of the present invention can reach 92%, and the visible light transmittance can reach 72%, far exceeding the polyester film on the market. The product of the present invention has better light transmittance and heat insulation effect. The additive material of the present invention is added to the film The adhesion and weather resistance of the intermediate and coated products are better. Through the production method of three-layer co-extrusion biaxial stretching, the production cost is low, the material loss is small, the environment is not polluted, and it plays an environmental protection role.

Description

technical field [0001] The invention relates to the technical field of polyester films, in particular to a high-light-transmitting, heat-insulating, and ultraviolet-shielding polyester film and a preparation method thereof. Background technique [0002] At present, the polyester film with high light transmission and high heat insulation is mainly produced by 3M Company in the United States. The film produced by magnetron sputtering has the effect of high light transmission and high heat insulation. This method has low production efficiency and high production cost. [0003] In China, mainly by coating the surface of the film, coating the surface of the film with a coating of heat insulation and UV protection can achieve the effect of heat insulation and UV protection. However, the coating method has high cost, large loss, and serious pollution caused by the coating production method. [0004] Therefore, it is an urgent technical problem to be solved by those skilled in the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B27/36B32B27/06B32B27/18B32B37/15B32B38/00C08L67/00C08K3/36C08K3/34C08K3/04C08J5/18B29C48/08B29C48/21B29C48/49
CPCB32B27/36B32B27/08B32B27/18B32B37/153B32B38/0012C08J5/18B29C48/08B29C48/21B29C48/49C08J2367/00C08K3/36C08K3/346C08K3/04B32B2038/0028B32B2307/412B32B2307/304B32B2307/71B32B2307/712
Inventor 胡培隆易永东郑菲菲
Owner 温州强润新材料科技有限公司
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