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Preparation method of environment-friendly multifunctional polyester film

A kind of polyester film, environment-friendly technology, applied in the field of preparation of environment-friendly multi-functional polyester film, can solve the problem that does not involve antibacterial, anti-ultraviolet, heat insulation, anti-fog, anti-static, single anti-infrared performance, single anti-corrosion Ultraviolet function and other problems, to achieve the effect of good infrared reflection effect

Active Publication Date: 2019-03-05
上海沪正实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Chinese patent CN105505174A discloses a method for preparing ATO thermal insulation film. The infrared blocking rate of this patent is greater than 83%, and the visible light transmittance is 81%. Antibacterial, anti-ultraviolet, heat insulation, anti-fog, anti-static and other multi-functional film
[0006] In Chinese patent CN105001437A, a preparation method of a UV-shielding light-transmitting and heat-insulating film is disclosed, and a UV-shielding type of light-transmitting and heat-insulating polyester is disclosed. The UV absorption of this patent is greater than 60%, and the visible light transmittance is greater than 74%. , but the patent only involves a polyester film with a single anti-ultraviolet function, and does not involve a polyester film with multiple functions such as antibacterial, anti-ultraviolet, heat insulation, anti-fog, and anti-static

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] (1) The preparation of base film middle layer polyester raw material comprises the following steps:

[0030] (1) Prepare 150ml of oxalic acid solution of 0.2mol / l in a 500ml beaker; add 1.5ml of sodium hexadecylbenzenesulfonate surfactant, and stir magnetically for 2 hours; then add 0.2mol / l of Yttrium acetate solution and lanthanum acetate solution 100ml (yttrium acetate: lanthanum acetate=90wt%: 10wt%), adjust pH to 2, after reacting for 10 minutes, obtain the precipitation of yttrium oxalate and lanthanum oxalate; Centrifuge at a speed of 5000 rpm The precipitate was removed, and the precipitate was washed with deionized water for 3 times; then dried at 80°C for 16 hours, and finally placed in a muffle furnace for calcination at 800°C for 18 hours to obtain nano-yttrium lanthanum oxide powder with a particle size range of 20 -50nm.

[0031] (2) Polyester raw material (mass ratio) of the middle layer of the base film: 99% of PET masterbatch and 1% of nano-scale yttri...

Embodiment 2

[0037] (1) The preparation of base film middle layer polyester raw material comprises the following steps:

[0038] (1) Prepare 150ml of oxalic acid solution of 0.2mol / l in a 500ml beaker; add 1.5ml of sodium hexadecylbenzenesulfonate surfactant, and stir magnetically for 2 hours; then add 0.2mol / l of Yttrium acetate solution and lanthanum acetate solution 100ml (yttrium acetate: lanthanum acetate=90wt%: 10wt%), adjust pH to 2, after reacting for 10 minutes, obtain the precipitation of yttrium oxalate and lanthanum oxalate; Centrifuge at a speed of 5000 rpm The precipitate was washed with deionized water for 3 times; then dried at 80°C for 18 hours, and finally placed in a muffle furnace for calcination at 800°C for 16 hours to obtain nano-yttrium lanthanum oxide powder with a particle size range of 20 -50nm.

[0039] (2) Polyester raw material (mass ratio) of the middle layer of the base film: 98% of PET masterbatch and 2% of nano-scale yttrium oxide lanthanum powder are uni...

Embodiment 3

[0045] (1) The preparation of base film middle layer polyester raw material comprises the following steps:

[0046] (1) Prepare 150ml of oxalic acid solution of 0.2mol / l in a 500ml beaker; add 1.5ml of sodium hexadecylbenzenesulfonate surfactant, and stir magnetically for 2 hours; then add 0.2mol / l of Yttrium acetate solution and lanthanum acetate solution 100ml (yttrium acetate: lanthanum acetate=90wt%: 10wt%), adjust pH to 3, after reacting for 10 minutes, obtain the precipitation of yttrium oxalate and lanthanum oxalate; Centrifuge at a speed of 5000 rpm The precipitate was removed, and the precipitate was washed with deionized water for 3 times; then dried at 80°C for 20 hours, and finally placed in a muffle furnace for calcination at 800°C for 22 hours to obtain nano-yttrium lanthanum oxide powder with a particle size range of 20 -50nm.

[0047] (2) Polyester raw material (mass ratio) of the middle layer of the base film: 97% of PET masterbatch and 3% of nano-scale yttri...

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Abstract

The invention discloses a preparation method of an environment-friendly multifunctional polyester film. The preparation method comprises the steps that an infrared reflecting medium is added into basic film intermediate layer polyester raw materials; a basic film surface layer and a basic film bottom layer are prepared in the mode that an environment-friendly ultraviolet-proof absorbent, an ultraviolet shielding agent, the infrared reflecting medium, an antibacterial agent, an anti-reflection agent, an antistatic agent and an antifogging agent are added into PET polyester raw materials and mixed uniformly, and composite polyester raw materials are prepared; and the environment-friendly multifunctional polyester film with the thickness of 20-100 micrometers is prepared from the basic film intermediate layer polyester raw materials, the basic film surface layer polyester raw materials and the basic film bottom layer polyester raw materials by adopting a two-way stretching three-layer co-extrusion technology. The polyester film prepared through the method not only has the antibacterial property, the antistatic property, the antifogging property and the high transparency, but also hasthe infrared-proof and ultraviolet-proof energy conservation, environment protection and high weatherability effects; and the polyester film not only can be applied to food window display or other glass surfaces with the high environment-friendly requirements, but also can be applied to the glass surfaces of airplanes, automobiles, trains, ships and common building windows.

Description

technical field [0001] The invention relates to a preparation method of an environment-friendly multifunctional polyester film. Background technique [0002] With the rapid development of modern society, people pay more and more attention to the environment. All countries in the world have formulated many laws and regulations to protect the environment, and have stepped up efforts to promote technological innovation and develop green and environmentally friendly products. The continuous acceleration of the urbanization process and the development of the construction industry and the automobile industry have increased the task of energy conservation and emission reduction. Window glass is a part of high energy loss in the construction and automotive industries. Countries all over the world are vigorously developing heat insulation and energy-saving films for various window glass parts. [0003] A method for preparing rare earth-doped yttrium oxide is disclosed in Chinese pa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C69/02B32B27/08B32B27/18B32B27/36C08L67/02C08L39/06C08K5/17C08K3/22B29L7/00B29L9/00
CPCB29L2007/00B29L2009/00B32B27/08B32B27/18B32B27/36B32B2250/03B32B2250/244B32B2307/21B32B2307/412B32B2307/714B32B2307/7145C08J5/18C08J2367/02C08J2439/06C08K3/22C08K5/17C08K2003/221C08K2201/011C08K2201/017C08L67/02C08L2201/04C08L2201/10C08L2203/16C08L39/06
Inventor 李佳怡尤先锋
Owner 上海沪正实业有限公司
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