Easily degradable packaging material and preparation method thereof

A packaging material and easily degradable technology, applied in the field of packaging materials, can solve the problems of the impact of animal and microbial life activities, poor natural degradability of plastic materials, and not easy to reduce, and achieve improved mechanical properties, high structural strength, and extended service life. Effect

Inactive Publication Date: 2021-11-02
YUYAO SUN RAIN SPRAYER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, due to the poor natural degradability of plastic materials, it is not easy to degrade in the environment. If it cannot be effectively treated after a large amount of use, it will produce a large amount of white pollution, which will affect the life activities of animals and microorganisms in nature.

Method used

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  • Easily degradable packaging material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment example 1

[0057] Weigh 50 parts of high-viscosity starch and 100 parts of deionized water and put them into the reaction kettle, stir at a temperature of 68°C to obtain a starch solution, add 15 parts of sodium hydroxide solution dropwise to the starch solution, and adjust the pH value of the starch solution to 9.1 , and then uniformly stirred at a speed of 75r / min for 2min, weighed 10 parts of titanium dioxide, 15 parts of dextran, 10 parts of fucoidan and 5 parts of coupling agent and put them into the reaction kettle, stirred until the materials were evenly dispersed, and continued to Keep the temperature at 65°C for 0.75h, then add 3 parts of acid inhibitor, adjust the pH value to 6.52, then add 1 part of aluminum sulfate, continue to heat and stir for 30 minutes, wash, concentrate, dry and pulverize the product in the reaction kettle to obtain The powdery solid is the desired modified starch;

[0058] Weigh 10 parts of boron oxide, 15 parts of wollastonite, 30 parts of isooctyl met...

Embodiment example 2

[0062]Weigh 50 parts of high-viscosity starch and 100 parts of deionized water and put them into the reaction kettle, stir at a temperature of 68°C to obtain a starch solution, add 15 parts of sodium hydroxide solution dropwise to the starch solution, and adjust the pH value of the starch solution to 9.1 , and then uniformly stirred at a speed of 75r / min for 2min, weighed 10 parts of titanium dioxide, 15 parts of dextran, 10 parts of fucoidan and 5 parts of coupling agent and put them into the reaction kettle, stirred until the materials were evenly dispersed, and continued to Keep the temperature at 65°C for 0.75h, then add 3 parts of acid inhibitor, adjust the pH value to 6.52, then add 1 part of aluminum sulfate, continue to heat and stir for 30 minutes, wash, concentrate, dry and pulverize the product in the reaction kettle to obtain The powdery solid is the desired modified starch;

[0063] Weigh 10 parts of boron oxide, 15 parts of wollastonite, 30 parts of isooctyl meth...

Embodiment example 3

[0067] Weigh 50 parts of high-viscosity starch and 100 parts of deionized water and put them into the reaction kettle, stir at a temperature of 68°C to obtain a starch solution, add 15 parts of sodium hydroxide solution dropwise to the starch solution, and adjust the pH value of the starch solution to 9.1 , and then uniformly stirred at a speed of 75r / min for 2min, weighed 10 parts of titanium dioxide, 15 parts of dextran, 10 parts of fucoidan and 5 parts of coupling agent and put them into the reaction kettle, stirred until the materials were evenly dispersed, and continued to Keep the temperature at 65°C for 0.75h, then add 3 parts of acid inhibitor, adjust the pH value to 6.52, then add 1 part of aluminum sulfate, continue to heat and stir for 30 minutes, wash, concentrate, dry and pulverize the product in the reaction kettle to obtain The powdery solid is the desired modified starch;

[0068] Weigh 10 parts of boron oxide, 15 parts of wollastonite, 30 parts of isooctyl met...

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Abstract

The invention relates to the technical field of packaging materials, in particular to an easily degradable packaging material and a preparation method thereof. The easily degradable packaging material comprises polylactic acid, polycaprolactone, wood fibers, modified starch, modified polyethylene, a photodegradation agent, an anti-ultraviolet agent, a plasticizer, an antioxidant and a stabilizer. The easily degradable packaging material is prepared from the following components in parts by weight: 30 to 50 parts of polylactic acid, 20 to 30 parts of polycaprolactone, 40 to 50 parts of the wood fibers, 50 to 60 parts of the modified starch, 35 to 40 parts of modified polyethylene, 15 to 20 parts of the photodegradation agent, 18 to 28 parts of the anti-ultraviolet agent, 2 to 7 parts of the plasticizer, 3 to 7 parts of the antioxidant and 1 to 6 parts of the stabilizer. According to the invention, the problems that due to the fact that the plastic material is poor in natural degradability, and not easy to degrade in the environment, a large amount of white pollution can be generated if a lot of plastic material is used and cannot be effectively treated, and life activities of animals and microorganisms in the nature are affected are solved.

Description

technical field [0001] The invention relates to the technical field of packaging materials, in particular to an easily degradable packaging material and a preparation method thereof. Background technique [0002] Packaging materials refer to the materials used to make packaging containers, packaging decoration, packaging printing, packaging and transportation to meet product packaging requirements, including metal, plastic, glass, ceramics, paper, bamboo, wild mushrooms, natural fibers, Main packaging materials such as chemical fibers and composite materials, as well as auxiliary materials such as strapping, decoration, and printing materials. [0003] At present, the existing packaging materials are generally made of plastics, and the packaging garbage bags made of plastics are cheap, durable, good sealing, water-resistant, oil-resistant, and not easy to break; they are widely welcomed by users. [0004] However, due to the poor natural degradability of plastic materials, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L3/04C08L67/04C08L97/02C08L23/06C08L5/08C08K3/22C08K3/38C08K3/34C08K5/3445
CPCC08L3/04C08L2201/06C08L2205/16C08K2201/011C08K2003/2296C08K2003/2241C08L2207/066C08L2201/08C08L67/04C08L97/02C08L23/06C08L5/08C08K3/22C08K3/38C08K3/34C08K5/3445
Inventor 毛寅
Owner YUYAO SUN RAIN SPRAYER
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