Preparation method of high-tenacity graphene/PET compound film composition

A graphene and composite film technology, applied in flexible coverings, airbag layout, packaging, etc., can solve the problems of low toughness of PET film materials, poor barrier performance of PET film materials, high cost, etc., to achieve improved tensile strength and The effect of elongation at break, improvement of barrier properties, and improvement of mechanical properties

Inactive Publication Date: 2019-10-25
SUZHOU YUXI NEW MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved in the present invention is aimed at (1) PET film material barrier performance is poor; (2) PET film material toughness is low; Industrialized production; (4) The preparation method of high-toughness graphene / PET film material is complicated, etc.

Method used

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  • Preparation method of high-tenacity graphene/PET compound film composition
  • Preparation method of high-tenacity graphene/PET compound film composition
  • Preparation method of high-tenacity graphene/PET compound film composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] 65 parts by weight of PET, 8 parts by weight of epoxy polyether terminated with hydroxyl groups, 3 parts by weight of graphene, 7 parts by weight of nano-magnesium-aluminum hydrotalcite Mg-Al-LDHs, 7 parts by weight of nano-zinc-aluminum hydrotalcite Zn-Al-LDHs Parts, nano-SO 4 2- / ZrO 2 5 parts by weight of powder, 4 parts by weight of bisbenzylbenzimidazole ionic liquid surfactant, 0.5 parts by weight of anilinomethyltriethoxysilane, and 0.5 parts by weight of γ-aminopropyltrimethoxysilane, put into reaction In the container, stir for 15min at a rotation speed of 500r / min. Then the discharged material is transferred to a screw extruder, and the graphene / PET composite film composition is obtained through blending, melt extrusion, and parallel extrusion casting.

Embodiment 2

[0025] 64 parts by weight of PET, 9 parts by weight of epoxy polyether terminated with hydroxyl groups, 3.9 parts by weight of graphene, 16 parts by weight of nano zinc aluminum hydrotalcite Zn-Al-LDHs, nanometer SO 4 2- / ZrO 2 4 parts by weight of powder, 3 parts by weight of bisbenzylbenzimidazole ionic liquid surfactant, and 0.1 part by weight of anilinomethyltrimethoxysilane were put into the reactor, and stirred for 15 minutes at a rotation speed of 300 r / min. Then the discharged material is transferred to a screw extruder, and the graphene / PET composite film composition is obtained through blending, melt extrusion, and parallel extrusion casting.

Embodiment 3

[0027] 63 parts by weight of PET, 7 parts by weight of hydroxyl-terminated epoxy polyether, 5 parts by weight of graphene, 16.9 parts by weight of nano-zinc-aluminum hydrotalcite Zn-Al-LDHs, nano-SO 4 2- / ZrO 2 1 part by weight of powder, 7 parts by weight of bisbenzylbenzimidazole ionic liquid surfactant, and 0.1 part by weight of anilinomethyltrimethoxysilane were put into the reactor and stirred for 20 minutes at a rotation speed of 500 r / min. Then the discharged material is transferred to a screw extruder, and the graphene / PET composite film composition is obtained through blending, melt extrusion, and parallel extrusion casting.

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Abstract

The invention relates to a preparation method of high-tenacity graphene / PET compound film composition. The preparation method comprises the steps of putting 62-65 parts of PET, 7-11 parts of a flexibilizer, 3-5 parts of graphene, 14-17 parts of nanometer hydrotalcite, 1-5 parts of a dispersin reagent, 2-7 parts of a dication ionic liquid type surfactant and 0.1-1 part of an amino silane silane coupling reagent into a reactor, and stirring at revolution of 200-500r / min for 10-20min; and then discharging and moving to a screw extruder, extruding through blending and melting, and obtaining the graphene / PET compound film composition in a flat extrusion and tape casting method. According to the preparation method, the flexibilizer and the graphene can jointly improve tensile strength and breaking elongation of a PET film material, and the nanometer hydrotalcite and the graphene can jointly improve barrier property of the PET film material. Prepared finished products can be used in food packaging, drug packaging, aerospace and other fields with high barrier characteristics.

Description

technical field [0001] The invention relates to a preparation method of a composite membrane material, in particular to a preparation method of a high-toughness graphene / PET composite membrane composition. In particular, it relates to a preparation method for manufacturing a high-toughness graphene / PET composite film composition with high barrier property requirements. Background technique [0002] Polyethylene terephthalate (PET) is a crystalline thermoplastic resin with excellent performance. It has ideal chemical stability and heat resistance, and is widely used in the production of film packaging materials. However, as a packaging material, PET film materials have poor barrier properties to gases such as oxygen and helium. Therefore, people have been working on improving the gas barrier properties of PET through various technical approaches. [0003] Graphene is a two-dimensional carbon material composed of a layer of carbon atoms closely packed periodically in a benze...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08L71/00C08K13/02C08K3/04C08K3/22C08K5/544C08K5/3447C08J5/18B65D65/38B64B1/58
CPCB64B1/58B65D65/38C08J5/18C08J2367/02C08J2471/00C08K3/22C08K5/3447C08K5/544C08K13/02C08K2201/011C08K3/042
Inventor 不公告发明人
Owner SUZHOU YUXI NEW MATERIAL TECH
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