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Modified poly(ethylene furandicarboxylate) as well as preparation method and application thereof

A technology of polyethylene furandicarboxylate and ethylene furandicarboxylate, applied in the field of modified polyethylene glycol furandicarboxylate, which can solve the problem of high brittleness, PEF strength, rigidity and barrier properties at the same time And other problems, to achieve the effect of high rigidity, conducive to large-scale production and application, and good toughness

Active Publication Date: 2021-06-15
宁波昌亚新材料科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] To sum up, for the application of PEF in the field of plastic packaging, it is necessary to solve the shortcomings of high brittleness.
However, there are still many deficiencies in the toughening of PEF. The specific performance is that it is difficult to simultaneously improve the toughness and maintain the strength, rigidity and barrier properties of PEF.

Method used

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  • Modified poly(ethylene furandicarboxylate) as well as preparation method and application thereof
  • Modified poly(ethylene furandicarboxylate) as well as preparation method and application thereof
  • Modified poly(ethylene furandicarboxylate) as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] The polyethylene furandicarboxylate and polybutylene succinate were dried in a vacuum oven at 80 °C for 4 h. Take by weighing 93.9 parts of polyethylene furandicarboxylate, 5 parts of polybutylene succinate, 0.5 part of styrene-acrylate-glycidyl acrylate copolymer and 0.6 part of antioxidant (antioxidant 1010 and Antioxidant 168 compounded at a ratio of 1:1), mixed evenly, and then added to a twin-screw extruder for melt blending for 5 minutes and then extruded to pelletize. The melt blending temperature was 230 ° C, and the screw speed was 100 rpm.

Embodiment 2

[0031]The polyethylene furandicarboxylate and polybutylene succinate were dried in a vacuum oven at 80 °C for 4 h. Take by weighing 93.4 parts of polyethylene furandicarboxylate, 5 parts of polybutylene succinate, 1 part of styrene-acrylate-glycidyl acrylate copolymer and 0.6 part of antioxidant (antioxidant 1010 and Antioxidant 168 compounded at 1:1), mixed evenly and added to the rod extruder to melt and blend for 6 minutes, then extrude and pelletize. The melt blending temperature was 230°C and the screw speed was 100rpm.

Embodiment 3

[0033] The polyethylene furandicarboxylate and polybutylene succinate were dried in a vacuum oven at 80 °C for 4 h. Take by weighing 88.9 parts of polyethylene furandicarboxylate, 10 parts of polybutylene succinate, 0.5 part of styrene-acrylate-glycidyl acrylate copolymer and 0.6 part of antioxidant (antioxidant 1010 and Antioxidant 168 compounded at a ratio of 1:1), mixed evenly, and then added to a twin-screw extruder for melt blending for 5 minutes and then extruded to pelletize. The melt blending temperature was 235° C., and the screw speed was 110 rpm.

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Abstract

The invention relates to modified poly(ethylene furandicarboxylate). The modified poly(ethylene furandicarboxylate) is prepared from the following components in parts by weight: 88 to 96.6 parts of poly(ethylene furandicarboxylate), 3 to 10 parts of poly(butylene succinate), 0.3 to 1 part of chain extender and 0.1 to 1 part of antioxidant. The modified poly(ethylene furandicarboxylate) disclosed by the invention has the characteristics of high strength, high rigidity, good toughness and the like, and keeps excellent gas barrier property. The preparation method of the modified poly(ethylene furandicarboxylate) is simple, and the modified poly(ethylene furandicarboxylate) can be applied to the field of plastic packaging materials with high requirements on gas barrier property.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a modified polyethylene furandicarboxylate, and at the same time, the application also relates to a preparation method and application of the polymer material. Background technique [0002] Polyethylene furandicarboxylate (PEF) is a polymer material that has been paid more and more attention at present. Compared with petroleum-based polyethylene terephthalate (PET), bio-based polyfuran Ethylene glycol formate (PEF) has more excellent mechanical properties, heat resistance and gas barrier properties, and has extremely broad application prospects in the field of high barrier packaging materials. However, the asymmetry of the furan ring itself and the greater polarity endowed by the oxygen atom on the furan ring to PEF make the molecular chains of PEF difficult to move. Also only 3KJ / m 2 left and right, which greatly limits the application of PEF in the field of plastic ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08L25/14C08K5/134C08K5/526
CPCC08L67/02C08L2205/025C08L2205/03C08L2201/14C08L25/14C08K5/1345C08K5/526
Inventor 徐建海
Owner 宁波昌亚新材料科技股份有限公司
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