Bio-based degradable meal box material and preparation method thereof

A biodegradable, bio-based technology, applied in the field of bio-based degradable lunch box materials and its preparation, can solve problems such as easy to remove "powder", poor antibacterial performance, and antibacterial performance that cannot meet the requirements, so as to improve comprehensive performance, Good antibacterial performance, the effect of improving antibacterial performance

Active Publication Date: 2020-07-17
深圳国至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

However, the hydroxyl groups in straw powder are hydrophilic and have poor compatibility with biodegradable polymer compounds, which can easily lead to water and moisture absorption of composite materials, material off-grid, large internal fine gaps, and antibacterial properties. The performance cann

Method used

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  • Bio-based degradable meal box material and preparation method thereof
  • Bio-based degradable meal box material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0041] Example 1

[0042] A bio-based degradable meal box material, which is made of the following parts by weight of raw materials: 45 parts of straw powder, 1.5 parts of hydrophobic additives, 0.2 parts of lubricants, 8 parts of reactive additives, 15 parts of biodegradable polymer compounds, 0.3 parts of antioxidants, 3 parts of grafting treatment aids, 2 parts of toughening and compatibility aids, 0.3 parts of antibacterial agents.

[0043] The straw powder is a mixture of corn straw powder, wheat straw powder, and soybean straw powder in a weight ratio of 1:1:1; the straw powder is pretreated before use, and the pretreatment step is: passing the straw powder through 50 mesh Sieve, use an infrared conveyor belt oven to bake the straw powder, the baking temperature is 110 ℃, and the baking time is 15 min.

[0044] The hydrophobic auxiliary agent is KH-570 and peanut oil mixed in a weight ratio of 1:1.5.

[0045] The lubricant is microcrystalline paraffin wax.

[0046] The reactive ...

Example Embodiment

[0057] Example 2

[0058] A bio-based degradable meal box material, which is made of the following parts by weight of raw materials: 30 parts of straw powder, 1 part of hydrophobic additives, 0.1 parts of lubricants, 5 parts of reactive additives, 10 parts of biodegradable polymer compound, 0.1 part of antioxidant, 1 part of grafting treatment aid, 1 part of toughening and compatibility aid, 0.1 part of antibacterial agent.

[0059] The straw powder is a mixture of wheat straw powder, bran powder, rice husk powder, and wood powder in a weight ratio of 1:1:1; the straw powder is pretreated before use, and the pretreatment step is: Pass a 50-mesh sieve, and use an infrared conveyor belt oven to bake the straw powder at a temperature of 110°C and a baking time of 15 minutes.

[0060] The hydrophobic auxiliary agent is KH-550 and stearic acid in a weight ratio of 1:0.7.

[0061] The lubricant is liquid paraffin.

[0062] The reactive auxiliary agent is 1,4-butanediol.

[0063] The degradab...

Example Embodiment

[0073] Example 3

[0074] A bio-based degradable lunch box material, which is made of the following parts by weight of raw materials: 60 parts of straw powder, 2 parts of hydrophobic additives, 0.5 parts of lubricants, 10 parts of reactive additives, 20 parts of biodegradable polymer compounds, 0.5 parts of antioxidants, 5 parts of grafting treatment aids, 5 parts of toughening and compatibility aids, 0.5 parts of antibacterial agents.

[0075] The straw powder is a mixture of rice bran powder, rice husk powder, and wood powder in a weight ratio of 1:1:1; the straw powder is pretreated before use, and the pretreatment step is: passing the straw powder through a 50-mesh sieve , Use an infrared conveyor belt oven to bake the straw powder, the baking temperature is 110 ℃, and the baking time is 15 min.

[0076] The hydrophobic auxiliary agent is KH-590 and stearic acid mixed in a weight ratio of 1:2.

[0077] The lubricant is polyethylene wax.

[0078] The reactive auxiliary agent is sor...

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Abstract

The invention discloses a bio-based degradable meal box material and a preparation method thereof. The bio-based degradable meal box material is prepared from the following raw materials: straw powder, a hydrophobic auxiliary agent, a lubricant, a reactive auxiliary agent, a biodegradable high-molecular compound, an antioxidant, a grafting treatment auxiliary agent, a toughening compatible auxiliary agent and an antibacterial agent. The bio-based degradable meal box material disclosed by the invention can be effectively biodegraded, can be degraded by 72.3% within 60 days and can be completelydegraded within 144 days, and white pollution can be effectively solved. The straw powder is subjected to gelation, plasticization, grafting, oxidation resistance, coupling and antibacterial treatment to obtain the degradable meal box material with excellent performance, the problems that an existing straw powder bio-based degradable material is large in water absorption and moisture absorption and prone to powder removal can be solved, and the comprehensive performance is improved; the material has good antibacterial performance, the antibacterial performance is improved by adding an antibacterial agent into the material, and the modified chitosan has the best antibacterial effect.

Description

technical field [0001] The invention relates to the technical field of degradable lunch box materials, in particular to a bio-based degradable lunch box material and a preparation method thereof. Background technique [0002] At present, most of the straw produced by my country's agriculture every year is disposed of by incineration, which not only destroys the environment, but also wastes resources; realizing the industrialization of straw will surely become a new industry and a new economy in my country. The growth point, the fruits and stalks of crops, will surely become the two major achievements of agricultural planting using solar energy with the development of economy and society. At present, the comprehensive utilization of crop straws in my country mainly has the following methods: one is to return them directly to the field as land fertilizer (15%); the other is to use them as feed (16%); the third is to use them for new energy sources such as power generation and g...

Claims

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Application Information

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IPC IPC(8): C08L97/02C08L67/02C08L67/04C08L91/00C08L51/08C08L5/08C08L29/04C08K5/053C08K5/134C08K5/526C08K5/00
CPCC08L97/02C08L2201/06C08L2205/035C08L2205/025C08L67/02C08L67/04C08L91/00C08L51/08C08L5/08C08L29/04C08K5/053C08K5/1345C08K5/526C08K5/00
Inventor 孟庆栓吕敬先
Owner 深圳国至新材料科技有限公司
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