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Biological refining lignin-compatibilized thermoplastic biodegradable polymer material and preparation method thereof

A polymer material and biorefinery technology, applied in the field of blended polymer materials, can solve problems such as reducing dependence on petroleum resources, achieve good mechanical properties, improve utilization, and prevent sticking effects.

Inactive Publication Date: 2013-12-11
INST OF CHEM IND OF FOREST PROD CHINESE ACAD OF FORESTRY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention proposes a biorefining lignin-enhanced thermoplastic degradable blended polymer material and its preparation method. At the same time, it solves the environmental problems such as accumulation space and other environmental problems caused by it, and its partial replacement of polyester materials can reduce the dependence on petroleum resources, reduce the cumbersome process of petroleum refining and the waste water generated in the process , exhaust gas, etc.

Method used

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  • Biological refining lignin-compatibilized thermoplastic biodegradable polymer material and preparation method thereof

Examples

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Effect test

Embodiment 1

[0028] The raw materials are taken, and the raw material components are 30 parts by mass of thermoplastic polyester, 20 parts of biorefined lignin, and 10 parts of additives.

[0029] The thermoplastic polyester is polycaprolactone.

[0030] The auxiliary agent includes 3 parts by mass of compatibilizer ethylene-vinyl acetate copolymer, 3 parts by mass of plasticizer ethylene glycol, and 4 parts by mass of lubricant stearic acid.

[0031] A method for preparing biorefined lignin-enhanced thermoplastic degradable polymer materials: crushed and sieved biorefined lignin and polycaprolactone are mixed at a ratio of 20 / 80, and a co-rotating twin-screw compounding extruder is used Melt extrusion of the blended material was performed. Add the resin mixture, 5 parts of diphenylmethane diisocyanate, 5 parts of ethylene glycol, and 5 parts of natural paraffin into the silo of the twin-screw extruder, and force-feed the material. The heating temperature of the extruder is 130 ° C, 160°...

Embodiment 2

[0034] The raw materials are taken, and the raw material components are 80 parts by mass of thermoplastic polyester, 70 parts of biorefined lignin, and 30 parts of additives.

[0035] The thermoplastic polyester is polylactic acid.

[0036] The auxiliary agent includes 9 parts by mass of the compatibilizer ethylene-acrylate copolymer, 9 parts by mass of the plasticizer glycerin, and 12 parts by mass of the lubricant butyl stearate.

[0037]A method for preparing biorefined lignin-enhanced thermoplastic degradable polymer materials: crushed and sieved biorefined lignin and polycaprolactone are mixed at a ratio of 20 / 80, and a co-rotating twin-screw compounding extruder is used Melt extrusion of the blended material was performed. Add the resin mixture and 2 parts of diphenylmethane diisocyanate, 3 parts of maleic anhydride grafted polyethylene, 5 parts of ethylene glycol, and 5 parts of natural paraffin into the silo of the twin-screw extruder for forced feeding. The heating ...

Embodiment 3

[0040] The raw materials are taken, and the raw material components are 60 parts by mass of thermoplastic polyester, 45 parts of biorefined lignin, and 20 parts of additives.

[0041] The thermoplastic polyester is polyhydroxybutyrate.

[0042] The auxiliary agent includes 5 parts by mass of compatibilizer diphenylmethane diisocyanate, 5 parts by mass of plasticizer ethanolamine, and 10 parts by mass of lubricant oleamide.

[0043] A method for preparing a biorefined lignin-enhanced thermoplastic degradable polymer material: the pulverized and sieved biorefined lignin and polylactic acid are mixed at a ratio of 40 / 60, and co-rotating twin-screw compounding extruder is used for co-rotation. Melt extrusion of mixed materials. Add the resin mixture, 5 parts of diphenylmethane diisocyanate, 5 parts of ethylene glycol, and 5 parts of natural paraffin into the silo of the twin-screw extruder, force feeding, and the heating temperature of the extruder is 130 ° C, 160 ° C , 160°C, 1...

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Abstract

The invention discloses a biological refining lignin-compatibilized thermoplastic biodegradable polymer material and a preparation method thereof. The material comprises the following components in parts by weight: 30-80 parts of thermoplastic polyester, 20-70 parts of biological refining lignin and 10-30 parts of assistant. The preparation method comprises the following steps: 1) crushing and screening the biological refining lignin and the polyester into 60-300 meshes through a high-speed pulverizer according to the parts by mass; 2) mixing the crushed mixture and the assistant through a high-speed mixer for 3-15 minutes at high speed under the conditions that the temperature is 65-105 DEG C and the rotating speed is 100-2000 r / min; and 3) adding the mixture and the assistant to a hopper of a twin-screw extruder, wherein the heating temperature of the extruder is 130-180 DEG C, the temperature of a handpiece is 140-180 DEG C and the rotating speed is 40-400 r / min. The biological refining lignin-compatibilized thermoplastic biodegradable polymer material has the advantages of being environment-friendly, low in cost, simple in preparation technology, and stable in product performance, and has a high promotional value.

Description

technical field [0001] The invention relates to a biorefining lignin-increased thermoplastic degradable blended polymer material and a preparation method thereof, belonging to the technical field of blended polymer materials. Background technique [0002] With the increasing shortage of oil resources in the world, traditional materials have been greatly impacted. Under this premise, the development of materials that are less dependent on petroleum resources is the focus of research and exploration by researchers from all over the world. Today, the industry of plant fiber fermentation to prepare fuel ethanol has developed rapidly. During the preparation of fuel ethanol, poplar, cork, pasture and grain straw are subjected to steam explosion treatment and then chemically separated. The separated part is used for biological fermentation and preparation of high-purity cellulose, while the remaining waste liquid is passed through After simple treatment, some slag with mixed comp...

Claims

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Application Information

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IPC IPC(8): C08L67/04C08L97/00B29C47/92B29C48/92
CPCB29C48/04B29C48/40B29C48/875B29C48/92B29C2948/9259B29C2948/92704B29C2948/92885B29C2948/92895
Inventor 金立维储富祥王春鹏谢振华
Owner INST OF CHEM IND OF FOREST PROD CHINESE ACAD OF FORESTRY
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