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Composition, preparation method thereof and application thereof in field of degradable materials

A composition and polymer technology, applied in the composition, preparation method and in the field of degradable materials and degradable materials, can solve the problems of poor hydrophobicity, inability to realize industrial production, poor film-forming properties, etc., and achieve good water resistance. Effect

Inactive Publication Date: 2019-01-11
深圳市永尚环保包装材料有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In view of this, the present invention provides a composition, a preparation method and its application in the field of degradable materials, which are used to solve the problems in the prior art that starch-based degradable materials cannot be industrialized, have poor film-forming properties and Technical drawback of poor hydrophobicity

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] This embodiment is a specific embodiment for preparing product 1.

[0036] Dry 32.0Kg PLA and 40.0Kg PBAT were mixed and placed in a high-speed mixer, and stirred at 110° C. at a speed of 500 r / min for 10 minutes to obtain the first product 1; in this example, the water content of PLA was less than 0.4%.

[0037] Continue to add 1.0Kg of acetylating agent, and stir at 65°C for 25 minutes at a speed of 700r / min to obtain the second product 1; in this example, the acetylating agent is acetic anhydride.

[0038] Continue to add 10.0Kg of plasticizer, and stir at 65°C for 15 minutes at a speed of 650r / min to obtain the third product 1; in this example, the plasticizer is polyethylene glycol.

[0039] Continue to add 5.0Kg of hydrophobic modifier, and stir at 85°C for 20 min at a speed of 600r / min to obtain the fourth product 1; in this example, the hydrophobic modifier is aluminate coupling agent.

[0040] The fourth product 1 was mixed with 20.0 Kg of biomass polymer, and...

Embodiment 2

[0043] This embodiment is a specific embodiment for preparing product 2.

[0044] Dry 29.0Kg PLA and 55.0Kg PBAT were mixed and placed in a high-speed mixer, and stirred at 120° C. at a speed of 400 r / min for 10 minutes to obtain the first product 2; in this example, the water content of PLA was less than 0.4%.

[0045] Continue to add 5.0Kg of acetylation agent, and stir at 50°C for 30 minutes at a speed of 400r / min to obtain the second product 2; in this example, the acetylation agent is acetic acid.

[0046] Continue to add 4.0Kg of plasticizer, and stir at 70°C for 20 minutes at a speed of 600r / min to obtain the third product 2; in this example, the plasticizer is glycerin.

[0047]Continue to add 6.0Kg of hydrophobic modifier, and stir at 75°C for 5 min at a speed of 500r / min to obtain the fourth product 2; in this example, the hydrophobic modifier is stearic acid.

[0048] The fourth product 2 was mixed with 8.0 Kg of biomass polymer, and stirred at 85° C. for 10 min at...

Embodiment 3

[0051] This embodiment is a specific embodiment for preparing product 3.

[0052] Dry 35.0 Kg PLA and 35.0 Kg PBAT were mixed and placed in a high-speed mixer, and stirred at 90° C. at a speed of 700 r / min for 5 minutes to obtain the first product 3; in this example, the water content of PLA was less than 0.4%.

[0053] Continue to add 3.0Kg of acetylation agent, and stir at 60°C for 5 minutes at a speed of 600r / min to obtain the second product 3; in this example, the acetylation agent is acetic anhydride.

[0054] Continue to add 14.0Kg of plasticizer, and stir at 75°C for 30min at a speed of 800r / min to obtain the third product 3; in this example, the plasticizer is sorbitol.

[0055] Continue to add 3.0 Kg of hydrophobic modifier, and stir at 80° C. for 25 min at a speed of 500 r / min to obtain the fourth product 3; in this example, the hydrophobic modifier is a titanate coupling agent.

[0056] The fourth product 3 was mixed with 5.0Kg biomass polymer, and stirred at 100°C...

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Abstract

The invention belongs to the technical field of degradable materials and particularly relates to a composition, a preparation method thereof and application thereof in field of the degradable materials. The composition contains the following raw materials: polylactic acid, butanediol adipate and butanediol terephthalate copolymer, an acetylating agent, a plasticizer, a hydrophobic modifier and biomass polymer; and the water content of polylactic acid is less than 0.4%. The invention further provides a preparation method of the composition. The invention further provides appplication of the composition and a product prepared from the preparation method in the field of the degradable materials. Experimental determination results show that compared with merchant degradable starch-base materials, the product prepared by the technical scheme provided by the invention has good water tolerance, film forming performance, processability, mechanical property and degradation property; and the technical defects in the prior art that a starch-base degradable material cannot be industrially produced and is poor in film forming property and hydrophobic property are solved.

Description

technical field [0001] The invention belongs to the technical field of degradable materials, and in particular relates to a composition, a preparation method and an application in the field of degradable materials. Background technique [0002] Since the beginning of the 21st century, protecting the earth's environment, building a resource-recycling society, and taking the path of sustainable development have become a hot topic and an urgent task in the world. Biodegradable materials can be continuously recycled throughout the product life cycle, and are typical low-environment load materials. Therefore, biodegradable materials have become a hot spot in global research and development. [0003] By blending starch with biodegradable polymers, low-cost fully biodegradable starch-based materials can be obtained. However, the currently developed starch-based biodegradable materials have some defects in quality and performance, so their applications are limited. The specific per...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08L67/04C08L71/02C08K5/09C08K5/10
CPCC08K2201/014C08L67/02C08L67/04C08L2201/06C08L2205/025C08L2205/03C08L2205/035C08L71/02C08K5/09C08K5/10C08K5/053
Inventor 许家其
Owner 深圳市永尚环保包装材料有限责任公司