Antibacterial-plant-pigment-added biodegradable packaging material and preparation method thereof

A biodegradable material and biodegradable technology, applied in the field of biodegradable packaging materials added with antibacterial plant pigments and its preparation, can solve the problems of high production cost and waste of resources, and achieve the effect of low equipment requirements and simple process operation

Active Publication Date: 2015-11-25
陕西鼎夏生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a leader in biodegradable plastics, polybutylene succinate (PBS) has good thermal and mechanical properties, excellent molding performance and biodegradability, and is considered to be a substitute for polyethylene (PE). One of the general-purpose plastic materials such as polypropylene (PP), but its production cost is relatively high, which limits its popularization and application
[0004] In recent years, with the development of liquor technology and the wide-scale promotion of fuel ethanol, the global production of distiller's grains has increased rapidly. In 2014, the production of distiller's grains reached 39 million tons, which will cause a huge waste of resources after being discarded.

Method used

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  • Antibacterial-plant-pigment-added biodegradable packaging material and preparation method thereof
  • Antibacterial-plant-pigment-added biodegradable packaging material and preparation method thereof
  • Antibacterial-plant-pigment-added biodegradable packaging material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A preparation method of distiller's grains / PBS biodegradable packaging material added with antibacterial plant-derived pigments, comprising the following steps:

[0034] 1) Using an alkali solution containing 3 parts of 5% NaOH solution and 2 parts of fiber protection additive (sodium sulfide), pretreating 180 μm distiller's grain fibers in a 40°C water bath for 40 minutes to obtain modified distiller's grain fibers;

[0035] 2) Prepare PBS polyester by melting polycondensation method. The specific method is to mix 0.11 parts of diacid (succinic acid), 0.1 part of diol (butanediol), and 10 μL of catalyst (ethylene glycol antimony) under normal pressure at 130 ° C. The dehydration condensation reaction is 5h, and the pressure reduction polymerization reaction is 3h at 200°C.

[0036] The PBS biodegradable material was purified by organic solvent precipitation, and vacuum-dried at 60°C to obtain the PBS biodegradable material. 100 parts of PBS biodegradable material, 1.2...

Embodiment 2

[0040] A preparation method of distiller's grains / PBS biodegradable packaging material added with antibacterial plant-derived pigments, comprising the following steps:

[0041] 1) Using an alkali solution containing 5 parts by mass fraction of 5% NaOH solution and 3 parts of a fiber protection aid (sodium sulfite), pretreating 150 μm distiller's grain fibers in a water bath at 55°C for 50 minutes to obtain modified distiller's grain fibers;

[0042] 2) Prepare PBS polyester by melting polycondensation method. The specific method is to dehydrate 1.1 parts of diacid (succinic acid), 1 part of diol (butylene glycol), and 20 μL of catalyst (stannous octoate) at 150 ° C under normal pressure. Condensation reaction for 6 hours, pressure reduction polymerization reaction at 220°C for 4 hours. The PBS biodegradable material was purified by organic solvent precipitation, and vacuum-dried at 60°C to obtain the PBS biodegradable material. 100 parts of PBS biodegradable material, 1.5 par...

Embodiment 3

[0046] A preparation method of distiller's grains / PBS biodegradable packaging material added with antibacterial plant-derived pigments, comprising the following steps:

[0047] 1) Using an alkali solution containing 7 parts of 3% NaOH solution and 4 parts of fiber protection additive (sodium thiosulfate), pretreat 120 μm distiller's grain fibers in a water bath at 80°C for 40 minutes to obtain modified distiller's grains fiber;

[0048] 2) Prepare PBS polyester by melting polycondensation method. The specific method is to use 3.3 parts of diacid (succinic acid), 3 parts of diol (butylene glycol), 50 μL of catalyst (tin protochloride) at 150 ° C under normal pressure The dehydration condensation reaction is 6h, and the compression polymerization reaction is 4h at 240°C. The PBS biodegradable material was purified by organic solvent precipitation, and vacuum-dried at 60°C to obtain the PBS biodegradable material. 100 parts of PBS biodegradable material, 2 parts of plasticizer ...

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Abstract

The invention discloses an antibacterial-plant-pigment-added biodegradable packaging material and a preparation method thereof, belonging to the technical field of packaging material production. The biodegradable packaging material comprises the following components in parts by mass: 70-90 parts of material body, 5-30 parts of modified vinasse fiber, 0.1-5 parts of coupling agent, 0.2-3 parts of heat stabilizer, 0.3-1.5 parts of antioxidant and 0.5-15 parts of plant-derived pigment. The packaging material has the advantages of favorable biodegradability, favorable antibacterial property, favorable thermodynamic stability, high tensile strength, favorable hydrophilicity and high degradation rate. The preparation method of the antibacterial-plant-pigment-added biodegradable packaging material comprises the following steps: banburying and blending the raw materials, carrying out melt extrusion at 100-120 DEG C, and carrying out blow molding forming. The preparation method has the advantages of simple technical operation, low facility request and environment friendliness, and is suitable for industrial large-scale production.

Description

technical field [0001] The invention belongs to the technical field of production of functional green packaging materials, and relates to a biodegradable packaging material and a preparation method thereof, in particular to a biodegradable packaging material added with antibacterial plant pigments and a preparation method thereof. Background technique [0002] With the development of plastic industry technology, the current world plastic production has exceeded 117×10 8 Its use has penetrated into various fields of industry, agriculture and people's lives and has become the four pillar materials of the national economy alongside steel, wood and cement. However, general-purpose plastics have many problems such as refractory degradation, serious environmental pollution after being discarded, and low recycling rate. The development and utilization of biodegradable plastics has become an ideal way to solve this world problem. [0003] Driven by the wave of green consumption, pe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08L63/02C08K5/12C08K5/54C08K5/098C08K5/134C08K5/00C08G63/16
Inventor 李成涛张敏王政宏盛思丽许小玲宋洁卫春会刘春
Owner 陕西鼎夏生物科技有限公司
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