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A kind of montmorillonite modified pet high temperature resistant optical polyester material and preparation method thereof

A polyester material, high temperature resistant technology, applied in the field of polymer materials, can solve the problems of no cross-linking reactive functional group, PET degradation, interface incompatibility, etc., to achieve low price, increase compatibility, increase light transmittance Effect

Active Publication Date: 2022-04-15
SOUTHWEAT UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the aryl quaternary phosphonium salts currently used in the research on the modification of montmorillonite are not only expensive, but also do not have functional groups that can cross-link with the PET matrix. When the modified organic montmorillonite is used in PET optical polyester materials It is easy to cause problems such as interface incompatibility and PET degradation, and still cannot meet the current requirements for optical properties, heat resistance, tensile strength, and barrier properties of PET optical polyester materials.

Method used

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  • A kind of montmorillonite modified pet high temperature resistant optical polyester material and preparation method thereof
  • A kind of montmorillonite modified pet high temperature resistant optical polyester material and preparation method thereof
  • A kind of montmorillonite modified pet high temperature resistant optical polyester material and preparation method thereof

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Effect test

specific Embodiment 1

[0027] First, add 10g of triphenylphosphine and 10mL of epichlorohydrin into the reaction kettle, stir at room temperature until completely dissolved; then, under the protection of nitrogen, react at room temperature for 6 hours; then distill under reduced pressure to remove unreacted epichlorohydrin propane to obtain a yellow reaction product, which was purified with ethyl acetate, filtered, and dried to prepare 2-oxiranylmethyltriphenylphosphine chloride.

specific Embodiment 2

[0029] First, add 10g of triphenylphosphine and 10mL of epichlorohydrin into the reaction kettle, stir at room temperature until completely dissolved; then, under the protection of nitrogen, react at 60°C for 6h; then distill under reduced pressure to remove unreacted epoxy Chloropropane to obtain a yellow reaction product, which was purified with ethyl acetate, filtered, and dried to prepare 2-oxiranylmethyltriphenylphosphine chloride.

specific Embodiment 3

[0031] First, add 10g of triphenylphosphine and 10mL of epichlorohydrin into the reaction kettle, stir at room temperature until completely dissolved; then, under the protection of nitrogen, react at 80°C for 6h; then distill under reduced pressure to remove unreacted epoxy Chloropropane to obtain a yellow reaction product, which was purified with ethyl acetate, filtered, and dried to prepare 2-oxiranylmethyltriphenylphosphine chloride.

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Abstract

The invention relates to a montmorillonite modified PET high-temperature-resistant optical polyester material and a preparation method thereof, which is characterized in that it is prepared by blending and extruding organic montmorillonite and PET, and the organic montmorillonite is prepared from 2‑ Obtained by modifying sodium montmorillonite with oxiranylmethyltriphenylphosphonium chloride. The modification method is as follows: 1. The montmorillonite is surface modified by using 2-oxiranylmethyl triphenyl phosphorus chloride. 2. After blending the modified montmorillonite and PET, melt extrusion, granulation and drying to obtain a PET high temperature resistant optical polyester film material. The present invention has the advantages that: the 2-oxiranyl methyl triphenyl phosphorus chloride supported by montmorillonite can react with the carboxyl and hydroxyl groups at both ends of the PET chain segment, which increases the compatibility of organic montmorillonite and PET It improves the light transmittance, mechanical properties, gas barrier properties and heat resistance of PET, and reduces the haze of PET. The preparation process is simple, green and environment-friendly, and can be widely used in the field of optical polyester materials.

Description

technical field [0001] The invention relates to a montmorillonite-modified PET high-temperature-resistant optical polyester material and a preparation method thereof, belonging to the field of polymer materials. Background technique [0002] Optical thin films are an important class of optical components, which are widely used in modern optics, optoelectronics, optical engineering and other related fields of science and technology. It plays an irreplaceable role in the transmission and modulation of light, the division and synthesis of spectrum and energy, and the conversion of light and other energy states. [0003] In recent years, the rapid development of a new generation of information industry represented by flexible electronics and flexible displays has put forward urgent application requirements for optical film materials. Polymer optical film materials, including polyethylene terephthalate (PET), polyethylene naphthalate (PEN), cellulose triacetate (TAC), polyvinyl ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L67/02C08K3/34C08K9/04C08J5/18
CPCC08K3/346C08K9/04C08J5/18C08L2201/08C08L2201/14C08J2367/02C08L67/02
Inventor 陈福德马寒冰
Owner SOUTHWEAT UNIV OF SCI & TECH