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PET film with good oxygen barrier performance

A technology of oxygen barrier and performance, applied in the field of new materials, it can solve the problems of poor oxygen barrier property and can not meet the barrier packaging, etc., and achieve the effect of improving tensile strength, reducing the gap between molecules, and improving mechanical properties.

Inactive Publication Date: 2019-05-07
张海涛
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, commonly used plastics such as polyethylene, polypropylene, polyester, etc. have poor oxygen barrier properties and cannot meet the requirements of barrier packaging.

Method used

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  • PET film with good oxygen barrier performance
  • PET film with good oxygen barrier performance

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A PET film with good oxygen barrier performance, made of the following components in parts by weight: 4-chloro-2-nitroaniline modified PET polyester chip 90, dopamine modified rosin resin 31, nanometer zinc dioxide 8 , trioctyl phosphate 1.2, glyceryl stearate 2, hydroxypropyl acrylate 1.8, sodium sulfosuccinate 0.5; the dopamine-modified rosin resin contains 20% of its quality nano-sericite.

[0021] Further, the preparation method of the 4-chloro-2-nitroaniline modified PET polyester chip comprises the following steps:

[0022] (1) Dissolving 4-chloro-2-nitroaniline in a hydrochloric acid solution with a concentration of 2.3mol / L to obtain a modified solution;

[0023] (2) Add PET polyester chips to the modified solution prepared above, under the protection of inert gas, heat to 90°C, stir at 200r / min for 2 hours, then filter, vacuum dry to constant weight, and get Pre-modified PET polyester chips;

[0024] (3) Add the PET polyester chips obtained above into the rea...

Embodiment 2

[0034] A PET film with good oxygen barrier performance, made of the following components in parts by weight: 4-chloro-2-nitroaniline modified PET polyester chip 93, dopamine modified rosin resin 35, nanometer zinc dioxide 12 , trioctyl phosphate 1.5, glyceryl stearate 5, hydroxypropyl acrylate 2.2, sodium sulfosuccinate 0.8; the dopamine-modified rosin resin contains 25% of its quality nano-sericite.

[0035] Further, the preparation method of the 4-chloro-2-nitroaniline modified PET polyester chip comprises the following steps:

[0036] (1) Dissolving 4-chloro-2-nitroaniline in a hydrochloric acid solution with a concentration of 2.3mol / L to obtain a modified solution;

[0037] (2) Add PET polyester chips to the modified solution prepared above, under the protection of inert gas, heat to 92°C, stir at 200r / min for 2 hours, then filter, vacuum dry to constant weight, and get Pre-modified PET polyester chips;

[0038] (3) Add the PET polyester chips obtained above into the re...

Embodiment 3

[0048] A PET film with good oxygen barrier performance, made of the following components in parts by weight: 4-chloro-2-nitroaniline modified PET polyester chip 91, dopamine modified rosin resin 32, nano zinc dioxide 10 , trioctyl phosphate 1.3, glyceryl stearate 4, hydroxypropyl acrylate 1.9, sodium sulfosuccinate 0.6; the dopamine-modified rosin resin contains 22% of its quality nano-sericite.

[0049] Further, the preparation method of the 4-chloro-2-nitroaniline modified PET polyester chip comprises the following steps:

[0050] (1) Dissolving 4-chloro-2-nitroaniline in a hydrochloric acid solution with a concentration of 2.3mol / L to obtain a modified solution;

[0051] (2) Add PET polyester chips to the modified solution prepared above, under the protection of inert gas, heat to 91°C, stir at 200r / min for 2 hours, then filter, vacuum dry to constant weight, and get Pre-modified PET polyester chips;

[0052] (3) Add the PET polyester chips obtained above into the reactio...

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Abstract

Relating to the technical field of new materials, the invention discloses a PET film with good oxygen barrier performance. The PET film with good oxygen barrier performance is prepared from the following components: 4-chloro-2-nitroaniline modified PET chip, dopamine modified rosin resin, nano-zinc dioxide, trioctyl phosphate, glyceryl stearate, hydroxypropyl acrylate and sodium succinate sulfonate. The PET film prepared according to the invention has excellent oxygen barrier performance.

Description

technical field [0001] The invention belongs to the technical field of new materials, and in particular relates to a PET film with good oxygen barrier performance. Background technique [0002] The research and development of polymer barrier properties can be traced back to the 1970s, but until the past 10 years, with the rapid development of the food industry, the development of high-barrier packaging materials for quality preservation, freshness preservation, flavor preservation, extended storage time and cost reduction With the increasing requirements, polymer barrier materials have been rapidly developed and widely used in the packaging industry. The barrier property of a polymer usually refers to its ability to prevent gas and liquid from passing through the polymer. Barrier polymers are mainly used in protective packaging, that is, to protect food or other electronic components, etc., from the environment. It can limit the transfer of substances from the environment ...

Claims

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Application Information

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IPC IPC(8): C08L67/08C08L93/04C08K13/02C08K3/22C08K5/521C08K5/103C08K5/42C08J5/18
Inventor 张海涛
Owner 张海涛
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