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Biodegradable resin composition and preparation method thereof

A biodegradable resin and composition technology, applied in the field of biodegradable material production, can solve problems such as mechanical strength loss, and achieve the effects of reducing mechanical strength loss, excellent biodegradation performance, and excellent mechanical performance

Pending Publication Date: 2022-01-04
宜宾天亿新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to solve the problem of large loss of mechanical strength of biodegradable resin compositions in the prior art, the present invention provides a biodegradable resin composition and a preparation method thereof

Method used

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  • Biodegradable resin composition and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Prepare the resin composition as follows:

[0025] (1) Measure the production raw materials according to the production raw material formula shown in Table 1, wherein the antioxidant is 4-hydroxy dodecanoic acid anilide, and the chain extender is styrene-glycidyl acrylate copolymer, nucleating The agent is aryl carboxylic acid diamide, the fluorescent whitening agent is phenylpyrazoline derivative, the lignin powder is methylated lignin powder, and the methyl acrylate copolymer is methyl methacrylate.

[0026] (2) Dry butylene adipate-butylene terephthalate copolymer and methyl methacrylate at 80°C for 6h, and dry methylated lignin powder at 105°C for 8.5h. Dried butylene adipate-butylene terephthalate copolymer, methylated lignin powder, methyl methacrylate and optical brightener, antioxidant, chain extender, nucleating agent Add the agent into a high-speed mixer with a rotation speed of 1000r / min and mix for 4min.

[0027] (3) Pellet the mixed material through a twi...

Embodiment 2

[0030] Prepare the resin composition as follows:

[0031] (1) Measure the production raw materials according to the production raw material formula shown in Table 1, wherein the antioxidant is 4-hydroxy dodecanoic acid anilide, and the chain extender is styrene-glycidyl acrylate copolymer, nucleating The agent is aryl carboxylic acid diamide, the fluorescent whitening agent is phenylpyrazoline derivative, the lignin powder is methylated lignin powder, and the methyl acrylate copolymer is ethylene-methyl methacrylate copolymer.

[0032] (2) Dry butylene adipate-butylene terephthalate copolymer and ethylene-methyl methacrylate copolymer at 80°C for 6 hours, and dry methylated lignin powder at 105°C 8.5h, the dried butylene adipate-butylene terephthalate copolymer, methylated lignin powder, ethylene-methyl methacrylate copolymer and fluorescent whitening agent, antioxidant Agent, chain extender, and nucleating agent were added to a high-speed mixer with a rotation speed of 500r / ...

Embodiment 3

[0036] Prepare the resin composition as follows:

[0037] (1) Measure the production raw materials according to the production raw material formula shown in Table 1, wherein the antioxidant is 4-hydroxy dodecanoic acid anilide, and the chain extender is styrene-glycidyl acrylate copolymer, nucleating The agent is aryl carboxylic acid diamide, the fluorescent whitening agent is phenylpyrazoline derivative, the lignin powder is methylated lignin powder, and the methyl acrylate copolymer is ethylene-methyl acrylate copolymer.

[0038] (2) Dry butylene adipate-butylene terephthalate copolymer and ethylene-methyl acrylate copolymer at 80°C for 6h, and dry methylated lignin powder at 105°C for 8.5h , the dried butylene adipate-butylene terephthalate copolymer, methylated lignin powder, ethylene-methyl acrylate copolymer and fluorescent whitening agent, antioxidant, chain extender Add the agent and nucleating agent into a high-speed mixer with a rotation speed of 1000r / min and mix f...

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Abstract

The invention discloses a preparation method of a biodegradable resin composition. A production raw material formula comprises the following components in parts by mass: 100 parts of a butylene adipate-butylene terephthalate copolymer, 15-30 parts of lignin powder, 5-15 parts of a methyl acrylate copolymer, 0.5-2 parts of an antioxidant, 0.5-7 parts of a chain extender and 0.1-1 part of a nucleating agent. The biodegradable resin composition has the advantages that the mechanical strength loss of the biodegradable resin composition can be remarkably reduced, the biodegradable resin composition and the product have excellent mechanical properties and transparency, lignin is recycled, and the biodegradable resin composition and the product have excellent biodegradability.

Description

technical field [0001] The invention relates to the field of polymer material processing, in particular to a biodegradable material production technology. Background technique [0002] Plastic shopping bags are consumables in daily life. In modern agricultural production, agricultural mulch film and vegetable greenhouse film are widely used, especially in arid and water-scarce areas. Traditional mulch films and greenhouse films are mostly produced from petroleum-based raw materials, such as polyethylene bags, biaxially oriented polypropylene bags, and polystyrene. These types of materials take a very long time to decompose and will not decompose or degrade in the natural environment, producing "white pollution" and causing a heavy burden on nature. [0003] Biodegradable plastics refer to a class of plastics that are degraded by microorganisms that exist in nature, such as bacteria, molds (fungi) and algae. After being discarded, it can be completely decomposed by environ...

Claims

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Application Information

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IPC IPC(8): C08L67/02C08L97/00C08L33/00
CPCC08L67/02C08L2201/06C08L2201/10C08L97/005C08L33/00
Inventor 刘强杨建中庞磊徐伟侯丽
Owner 宜宾天亿新材料科技有限公司