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Lignin-modified whole bio-based PBSA biodegradable plastic and preparation method thereof

A technology of biodegradable plastics and biodegradable resins, applied in flat products, other household appliances, household appliances, etc., can solve the problems of high carbon dioxide, consumption of petroleum resources, etc., and achieve the effects of low production cost, cost reduction and convenient operation.

Active Publication Date: 2017-04-26
济宁曼特尔新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The raw materials of PBSA are succinic acid, adipic acid and butanediol. Although PBSA plastic is a biodegradable plastic, judging from the current industrialized production equipment, its three sources of raw materials are still from petrochemical industry. Extracted, so PBSA plastic consumes petroleum resources and produces more carbon dioxide during the production process

Method used

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  • Lignin-modified whole bio-based PBSA biodegradable plastic and preparation method thereof
  • Lignin-modified whole bio-based PBSA biodegradable plastic and preparation method thereof
  • Lignin-modified whole bio-based PBSA biodegradable plastic and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Embodiment 1 Preparation of lignin-modified PBSA biodegradable plastics

[0037] (1) In terms of parts by weight, the proportioning ratio of each raw material used is as follows:

[0038]

[0039]

[0040] (2) Concrete preparation method, comprising the following steps:

[0041] (1) Synthesize the full bio-based PBSA biodegradable resin raw material according to the above method;

[0042] (2) Dry a certain amount of bio-based PBSA and lignin powder (150 mesh) at 25°C and 0-5000Pa for 2.0h;

[0043] (3) Add dry bio-based PBSA, lignin powder and bisphenol A, dibutyl hydroxytoluene, triethyl citrate, epoxidized soybean oil, zinc stearate in the high mixer, and control the material temperature to 100-105°C, mix for 15 minutes, the speed is 900r / min;

[0044] (4) extruding and granulating the obtained mixed material through a twin-screw extruder, controlling the extrusion temperature to be 120-130° C. to obtain lignin-bio-based PBSA composite plastic particles;

[...

Embodiment 2

[0046] Example 2 Preparation of lignin-modified bio-based PBSA biodegradable plastics

[0047] (1) In terms of parts by weight, the proportioning ratio of each raw material used is as follows:

[0048]

[0049] (2) Concrete preparation method, comprising the following steps:

[0050] (1) Synthesize the full bio-based PBSA biodegradable resin raw material according to the above method;

[0051] (2) Dry a certain amount of bio-based PBSA and lignin (200 mesh) at 25°C and 0-5000Pa for 3 hours;

[0052] (3) Add dry bio-based PBSA, lignin and acetyl tri-n-butyl citrate, resorcinol dihydroxyethyl ether, butyl hydroquinone, epoxidized soybean oil, stearin into the high mixer Calcium acid, control the material temperature to 110°C, mix for 20 minutes, and the rotating speed is 1000r / min;

[0053] (4) extruding and granulating the obtained mixed material through a twin-screw extruder, controlling the extrusion temperature to be 130-140° C. to obtain lignin-PBSA composite plastic ...

Embodiment 3

[0055] Example 3 Preparation of lignin-modified bio-based PBSA biodegradable plastics

[0056] (1) In terms of parts by weight, the proportioning ratio of each raw material used is as follows:

[0057]

[0058] (2) Concrete preparation method, comprising the following steps:

[0059] (1) Synthesize the full bio-based PBSA biodegradable resin raw material according to the above method;

[0060] (2) Dry a certain amount of bio-based PBSA and lignin (250 mesh) at 25°C and 0-5000Pa for 3 hours;

[0061] (3) Add dried bio-based PBSA, lignin, maleic anhydride, glycerol triacetate, butyl hydrodiphenol, 1,4-butanediol, zinc stearate to the high mixer to control The material temperature is 105°C, mixed for 25 minutes, and the rotation speed is 1000r / min;

[0062] (4) extruding and granulating the obtained mixed material through a twin-screw extruder, controlling the extrusion temperature to be 155-160° C. to obtain lignin-PBSA composite plastic granules;

[0063] (5) The lignin-...

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Abstract

The present invention discloses a method for preparation of lignin-modified whole bio-based PBSA biodegradable plastic, and the method comprises the following steps: (1) whole bio-based PBSA is synthesized; (2) the whole bio-based PBSA and lignin are dried in vacuum, respectively; (3) the well-dried whole bio-based PBSA and lignin and a certain amount of chain extender, antioxidant, plasticizer, lubricant and heat stabilizer are added into a high-speed mixing machine and fully mixed; (4) mixed materials are extruded and granulated by a twin-screw extrusion machine; and (5) film blowing is performed to obtain the lignin modified whole bio-based PBSA biodegradable plastic. By introducing the biomass material lignin and performing compound modification, the prepared lignin-PBSA composite plastic meets the requirements of complete degradation, and the mechanical properties of the whole bio-based PBSA resin are enhanced and the cost of the plastic is effectively reduced, thus making the plastic more conducive to market promotion.

Description

technical field [0001] The invention relates to the technical field of biological plastics, in particular to a lignin-modified all-biological-based PBSA biodegradable plastic and a preparation method thereof. Background technique [0002] At present, with the continuous development of the national economy, the consumption of plastic products is increasing, and synthetic plastics are playing an increasingly important role in production and life. However, since most of the plastic products cannot be degraded after being discarded, they exist for a long time, and the continuous accumulation has caused serious white pollution. Environmentally friendly plastic products are becoming more and more urgent and have aroused extensive interest of researchers. Among them, degradable resins have become a research hotspot due to their degradation characteristics and economic characteristics. [0003] Polybutylene teresuccinate / adipate (PBSA) is a completely biodegradable polyester materi...

Claims

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Application Information

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IPC IPC(8): C08L67/02C08L97/00C08L91/00C08K5/13C08K5/11C08K5/098C08K5/053C08K5/103C08K5/526C08G63/16B29D7/01
CPCB29D7/01C08G63/16C08J5/18C08J2367/02C08J2497/00C08K2201/014C08L67/02C08L2201/06C08L2203/16C08L2205/03C08L97/005C08L91/00C08K5/13C08K5/11C08K5/098C08K5/053C08K5/103C08K5/526
Inventor 施晓旦邵威金霞朝
Owner 济宁曼特尔新材料有限公司
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