Rice husk powder/PBAT biomass-based fully degradable material and preparation method thereof

A rice husk powder, fully degradable technology, applied in the field of rice husk powder/PBAT biomass-based fully degradable materials and preparation, can solve incompatibility and other problems, achieve good thermal stability, reduce production costs, and increase tensile strength Effect

Inactive Publication Date: 2019-08-16
YINGKOU XIAOJIAZU IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because the cellulose, hemicellulose and lignin of biomass contain a large number of polar alcoholic and phen...

Method used

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  • Rice husk powder/PBAT biomass-based fully degradable material and preparation method thereof
  • Rice husk powder/PBAT biomass-based fully degradable material and preparation method thereof
  • Rice husk powder/PBAT biomass-based fully degradable material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] This embodiment provides a kind of rice husk powder / PBAT biomass-based fully degradable material, including the following components by weight:

[0042]

[0043]

[0044]Described coupling agent is silane coupling agent KH560, and described chain extender is BASF chain extender ADR, and described lubricant is stearic acid; Described plasticizer is acetyl tri-n-butyl citrate ATBC; Described The antioxidant was BASF Antioxidant 1010.

[0045] Adopt rice husk powder and polybutylene terephthalate-butylene adipate copolyester PBAT among the present invention as main material, plasticizer, coupling agent, chain extender, lubricant, thermal stabilizer, Biomass-based fully degradable materials prepared with antioxidants as auxiliary materials have high tensile strength, high elongation at break, and good thermal stability.

[0046] The rice husk powder has a mesh number of 800 mesh, and the rice husk powder undergoes the steps of alkaline hydrolysis, sulfuric acid swell...

Embodiment 2

[0068] This embodiment provides a kind of rice husk powder / PBAT biomass-based fully degradable material, including the following components by weight:

[0069]

[0070]

[0071] Wherein, the coupling agent is silane coupling agent KH560, the chain extender is BASF chain extender ADR, and the lubricant is stearic acid; the plasticizer is acetyl tri-n-butyl citrate ATBC; The antioxidant is BASF antioxidant 1010.

[0072] The rice husk powder has a mesh number of 700 mesh, and the rice husk powder undergoes the steps of alkaline hydrolysis, sulfuric acid swelling, and ultrasonic wall breaking in sequence, including:

[0073] The 700-mesh rice husk powder was hydrolyzed by adding a 6% sodium hydroxide solution at a mass fraction of 175° C. for 20 minutes, washed with distilled water until neutral after hydrolysis, and dried to obtain hydrolyzed rice husk powder;

[0074] Then, the hydrolyzed rice husk powder was stirred while adding concentrated sulfuric acid with a mass fr...

Embodiment 3

[0090] This embodiment provides a kind of rice husk powder / PBAT biomass-based fully degradable material, including the following components by weight:

[0091]

[0092] Wherein, the coupling agent is silane coupling agent KH560, the chain extender is BASF chain extender ADR, and the lubricant is stearic acid; the plasticizer is acetyl tri-n-butyl citrate ATBC; The antioxidant is BASF antioxidant 1010.

[0093] The rice husk powder has a mesh number of 600 mesh, and the rice husk powder undergoes the steps of alkaline hydrolysis, sulfuric acid swelling, and ultrasonic wall breaking in sequence, including:

[0094] The 600-mesh rice husk powder was hydrolyzed by adding a sodium hydroxide solution with a mass fraction of 6% at a hydrolysis temperature of 170° C. for 15 minutes, washed with distilled water until neutral after hydrolysis, and dried to obtain hydrolyzed rice husk powder;

[0095] Then, the hydrolyzed rice husk powder was stirred under the condition of 38°C while...

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Abstract

The invention discloses a rice husk powder/PBAT biomass-based fully degradable material and a preparation method thereof. The rice husk powder/PBAT biomass-based fully degradable material comprises, by weight, 20-40 parts of rice husk powder, 35-60 parts of PBAT, 2-4 parts of a plasticizer, 2-4 parts of a coupling agent, 1-3 parts of a chain extender, 3-5 parts of a lubricant, 2-4 parts of a heatstabilizer and 0.1-0.3 part of an antioxidant. The PBAT and rice husk powder are mixed to obtain the material with good comprehensive performances, the addition of the rice husk powder reduces the production cost, and many choices are provided for the application and development of degradable plastics.

Description

technical field [0001] The invention relates to the technical field of polymer materials, more specifically, to a rice husk powder / PBAT biomass-based fully degradable material and a preparation method thereof. Background technique [0002] Environmental protection, as a worldwide issue, is getting more and more attention. As a material widely used in various fields, plastic has a huge output, and most of the plastics are difficult to decompose in the natural environment because of their stable structure. The long-term accumulation of a large number of waste plastics has caused serious pollution to the environment. , so people have carried out research and development on degradable plastics. [0003] Fully degradable plastics refer to materials that can be degraded by microorganisms or their secretions under the action of enzymes or chemical decomposition, and decomposed into H2O, CO2, CH4 or some small molecular weight polymers, and finally only the products that are non-to...

Claims

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Application Information

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IPC IPC(8): C08L67/02C08L97/02C08L91/00C08K5/00C08K5/11C08K5/09C08K5/5435C08K5/134
CPCC08L67/02C08L2201/06C08L2205/03C08L2205/16C08L97/02C08L91/00C08K5/00C08K5/11C08K5/09C08K5/5435C08K5/1345
Inventor 文博葛铁军郝天禹李智武任传鉴赵媛媛刘晓洋
Owner YINGKOU XIAOJIAZU IND
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