Application of bio-based polyfuran polybutylene terephthalate modified polylactic resin

A technology of polybutylene furandicarboxylate and butylene furandicarboxylate is applied to bio-based polyester-modified polylactic acid resin, and bio-based polybutylene furandicarboxylate-modified polylactic acid resin is used for preparing In the field of gas barrier materials, it can solve the problems of complex preparation methods of barrier layers and poor water vapor barrier properties, and achieve the effects of good eco-friendliness and good gas barrier properties.

Inactive Publication Date: 2018-01-23
NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, CN102007001A proposes an oxygen barrier film containing a barrier layer. The preparation method of the barrier layer is relatively complicated, and the oxygen barrier performance is better, but the water vapor barrier property is poor.
Another example, a biodegradable PPC and PBS multilayer barrier film is proposed in CN104403294A, its oxygen barrier performance is better, but calcium carbonate needs to be added as the third component

Method used

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  • Application of bio-based polyfuran polybutylene terephthalate modified polylactic resin
  • Application of bio-based polyfuran polybutylene terephthalate modified polylactic resin
  • Application of bio-based polyfuran polybutylene terephthalate modified polylactic resin

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] The polylactic acid PLA (4032D), the aforementioned PBF, antioxidant AT1010, lubricant PETS-3, and ultraviolet light absorber UV-531 after vacuum drying at 90°C for 2 hours are in a mass ratio of 93.6:5:0.3:0.6: 0.5 Banburying was carried out in a Brabender torque rheometer at a banburying temperature of 185° C., a rotational speed of 50 rpm, and a banburying time of 6 minutes to obtain a blend.

[0051] The blend was molded into a film of about 200 μm at 185°C. At room temperature, the film was cut and placed in a gas barrier test instrument (VAC-V2, Labthink) for barrier tests of oxygen and carbon dioxide. After the test, the film was further cut into a water vapor barrier test instrument (W3 / 060, Labthink), and the water vapor barrier test was performed at 35°C.

Embodiment 2

[0052] Embodiment 2: the preparation process of the present embodiment is the same as embodiment 1, the difference is: the mass ratio of PLA, PBF, antioxidant AT1010, lubricant PETS-3, ultraviolet light absorber UV-531 is 88.5:10:0.4: 0.6:0.5.

Embodiment 3

[0053] Embodiment 3: the preparation process of the present embodiment is the same as embodiment 1, the difference is: the mass ratio of PLA, PBF, antioxidant AT1076, lubricant PETS-3, ultraviolet absorber UV-531 is 83.4:15:0.5: 0.6:0.5.

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Abstract

The invention discloses an application of bio-based polyfuran polybutylene terephthalate modified polylactic resin to preparation of gas barrier materials. The gas permeability of the bio-based polyfuran polybutylene terephthalate modified polylactic resin for oxygen is 0.05-1.10cm<3>/m<2>*d*atm, the gas permeability of the bio-based polyfuran polybutylene terephthalate modified polylactic resin for carbon dioxide is 0.12-0.72cm<3>/m<2>*d*atm, the water vapor permeance of the resin is 7.3-19.6g/m<2>*d, and the resin has excellent gas barrier property, accordingly can be used for fields such aspackaging fields with high requirements for the gas barrier property, and particularly can be used for preparing medicine packaging, beverage bottles, vegetable, fruit and meat preservation boxes, preservative films and the like.

Description

technical field [0001] The invention relates to a bio-based polyester modified polylactic acid resin and its application, in particular to the use of a bio-based polybutylene furandicarboxylate modified polylactic acid resin in the preparation of gas barrier materials, which belongs to the bio-based high Molecular materials and polymer molding processing. Background technique [0002] With the development of the global economy and the deepening of industrialization, the energy industry and the plastic industry based on petroleum raw materials are gradually affected by the shortage of petroleum, resulting in rising prices and shortages of raw materials. At the same time, as the country pays more and more attention to environmental protection issues, the application of various products from petrochemical sources is also subject to stricter restrictions. For example, in 2015, China's Jilin Province began to fully implement the plastic restriction order, prohibiting the sale an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/04C08L67/02B29C47/92B29B9/06B29C48/92
Inventor 龙昱王静刚张若愚黄骏成朱锦
Owner NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
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