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Coffee-flavored completely biodegradable plant-based material as well as preparation method and application thereof

A biodegradable, plant-based technology, applied in the field of polymer modification, can solve the problems of large organic load, high moisture content, high acidity value, etc., and achieve the effects of decreased crystallization performance, increased molecular weight, and reduced molecular regularity

Inactive Publication Date: 2021-06-15
SIIICO TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] ①High moisture content;
[0005] ②High acidity value;
[0006] ③ Large load of organic matter;

Method used

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  • Coffee-flavored completely biodegradable plant-based material as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Dry the polylactic acid resin, toughened resin, and coffee grounds, and grind the coffee grounds to a particle size of 40 mesh, then weigh 67.2% polylactic acid resin, 10% PBAT, 20% coffee grounds, 0.5% Nucleating agent, 2% plasticizer, 0.3% antioxidant, polylactic acid resin, PBAT, and additives were added to the high-speed mixer and mixed for 1 minute, then coffee grounds were added and mixed for 5 minutes, and then pulled The elongational rheological plasticizing extrusion equipment performs melt extrusion granulation. The elongational rheological eccentric rotor structure is designed with an eccentricity e of 1.5mm, the number of straight segments in the functional section is 4, and the compression ratio between the maximum pitch and the minimum pitch is 2.0.

Embodiment 2

[0042] Dry the polylactic acid resin, toughened resin, and coffee grounds, and grind the coffee grounds to a particle size of 60 mesh, then weigh 67.2% polylactic acid resin, 10% PBS, 20% coffee grounds, 0.5% Nucleating agent, 2% plasticizer, 0.3% antioxidant, polylactic acid resin, PBS, and additives were added to the high-speed mixer and mixed for 1 minute, then coffee grounds were added and mixed for 5 minutes, and then pulled The elongational rheological plasticizing extrusion equipment is used for melt extrusion and granulation. The elongational rheological eccentric rotor structure is designed with an eccentricity e of 1.5mm, the number of straight segments in the functional section is 4, and the compression ratio between the maximum pitch and the minimum pitch is 3.6.

Embodiment 3

[0044] Dry the polylactic acid resin, toughened resin, and coffee grounds, and grind the coffee grounds to a particle size of 150 mesh, then weigh 70.2% polylactic acid resin, 10% PBAT, 15% coffee grounds, 0.5% Nucleating agent, 2% plasticizer, 0.3% antioxidant, polylactic acid resin, PBAT, and additives were added to the high-speed mixer and mixed for 1 minute, then coffee grounds were added and mixed for 5 minutes, and then pulled The elongational rheological plasticizing extrusion equipment performs melt extrusion and granulation. The elongational rheological eccentric rotor structure is designed with an eccentricity e of 3mm, the number of straight segments in the functional section is 6, and the compression ratio between the maximum pitch and the minimum pitch is 2.0.

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Abstract

The invention discloses a coffee-flavored completely biodegradable plant-based material as well as a preparation method and application thereof, and belongs to the technical field of polymer modification. The material comprises the following components in percentage by mass: 40-90% of polylactic acid; 3-30% of toughening resin; 1-50% of coffee grounds; and the balance of auxiliaries. The coffee-flavored completely biodegradable plant-based material is obtained by extrusion granulation or molding through extensional rheological plasticizing extrusion equipment. The material can be applied to food contact materials such as disposable catering materials and food packaging materials, the environmental protection pressure is reduced, and the application level of the coffee grounds is improved. The material has the advantages of simple preparation process and controllable and adjustable reaction process.

Description

technical field [0001] The invention discloses a completely biodegradable coffee-flavored plant-based material and its preparation method and application. The material can be used for food contact materials and belongs to the technical field of polymer modification. Background technique [0002] Coffee is one of the most popular beverages and one of the most widely traded commodities internationally. Coffee grounds are the by-products left after coffee is extracted from coffee beans, accounting for about 2 / 3 of the weight of dry coffee beans. Coffee grounds are rich in oil, sugar and protein, cellulose, acids (amino acid, chlorogenic acid, other fatty acids), etc., of which coffee oil content is about 14%. Coffee oil contains 4 main fatty acids, accounting for 95.25% of the total, respectively linoleic acid 34.79%, oleic acid 9.85%, palmitic acid 42.12%, stearic acid 8.49%. Coffee grounds have a strong coffee aroma, and the volatile fat is the main source of coffee aroma, ...

Claims

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Application Information

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IPC IPC(8): C08L67/04C08L99/00C08L67/02
CPCC08L67/04C08L2201/06C08L2205/03C08L99/00C08L67/02
Inventor 邝清林冯绮琳李保银陈立彬
Owner SIIICO TECH CO LTD
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