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Preparation method of degradable foam packing material

A packaging material and plant fiber technology, applied in the field of preparation of degradable foamed packaging materials, can solve the problems of difficult to find process means, large volume, high product density, etc., and achieve light weight, wide source of raw materials, and good heat preservation Effect

Inactive Publication Date: 2014-05-28
WUXI HUANGSHENG PACKING PROD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The common problems they have are: 1. It is difficult to make thicker and larger products; 2. It is difficult to find a process suitable for the drying process in industry; 3. The product has a high density, generally 0.2g / cm 3 Above, some even exceed 0.3g / cm 3 , which is more than ten times or even twenty times the density of EPS foam

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A method for preparing a degradable foam packaging material, the packaging material is composed of the following components in parts by weight: 50 parts of straw fiber, 46 parts of corn starch, 6 parts of silicon oxide powder, 14 parts of talcum powder, modified plant fiber 6 parts of agent, 4 parts of silicone release agent, 6 parts of aluminum powder, 210 parts of 4% sodium hydroxide solution; Described preparation method is:

[0018] 1) Knead the straw in a plant fiber kneading machine for 10 minutes to make fibers;

[0019] 2) Add straw fiber, appropriate amount of water, and plant fiber modifier into the mixer to disperse evenly;

[0020] 3) Put corn starch, silica powder, talc powder and aluminum powder into the mixer, heat to 60°C, mix well, and then make a paste;

[0021] 4) Then add 4% sodium hydroxide solution and stir while adding;

[0022] 5) Coat the surface of the mold wall with a silicone release agent, fill the mixed slurry into the mold, and place it ...

Embodiment 2

[0025] A method for preparing a degradable foam packaging material, the packaging material is composed of the following components in parts by weight: 54 parts of straw fiber, 42 parts of corn starch, 8 parts of silicon oxide powder, 12 parts of talc powder, modified plant fiber 8 parts of agent, 2 parts of silicone release agent, 8 parts of aluminum powder, 210 parts of 6% sodium hydroxide solution; Described preparation method is:

[0026] 1) Knead the straw in a plant fiber kneading machine for 14 minutes to make fibers;

[0027] 2) Add straw fiber, appropriate amount of water, and plant fiber modifier into the mixer to disperse evenly;

[0028] 3) Put corn starch, silica powder, talc powder and aluminum powder into the mixer, heat to 70°C, mix well, and then make a paste;

[0029] 4) Then add 6% sodium hydroxide solution and stir while adding;

[0030] 5) Coat the surface of the mold wall with a silicone release agent, fill the mixed slurry into the mold, and place it at...

Embodiment 3

[0033] A method for preparing a degradable foam packaging material, the packaging material is composed of the following components in parts by weight: 52 parts of straw fiber, 44 parts of corn starch, 7 parts of silicon oxide powder, 13 parts of talcum powder, modified plant fiber 7 parts of agent, 3 parts of organosilicon release agent, 7 parts of aluminum powder, 205 parts of 5% sodium hydroxide solution; Described preparation method is:

[0034] 1) Knead the straw in a plant fiber kneading machine for 12 minutes to make fibers;

[0035] 2) Add straw fiber, appropriate amount of water, and plant fiber modifier into the mixer to disperse evenly;

[0036] 3) Put corn starch, silica powder, talc powder and aluminum powder into the mixer, heat to 65°C, mix well, and then make a paste;

[0037] 4) Add 5% sodium hydroxide solution and stir while adding;

[0038] 5) Coat the surface of the mold wall with a silicone release agent, fill the mixed slurry into the mold, and place it ...

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Abstract

The invention discloses a preparation method of a degradable foam packing material. The preparation method comprises the following steps: 1) rubbing straw to prepare straw fibers; 2) adding 50-54 parts of straw fibers, appropriate amount of water, and 6-8 parts of a plant fiber modifier in a mixer for dispersing uniformly; 3) putting 42-46 parts of corn starch, 6-8 parts of silicon oxide powder, 12-14 parts of talcum powder and 6-8 parts of powdered aluminum into the mixer, heating to 60-70 DEG C, mixing uniformly to prepare a pasty material; 4) adding 200-210 parts of a 4-6% sodium hydroxide solution, and stirring at the same time; 5) coating the wall surface of a mold with 2-4 parts of an organic silicon releasing agent, filling the mold with the mixed slurry, continuously foaming and expanding for 16-18 minutes at the temperature of 125-135 DEGC; 6) drying at 100-110 DEG C to release the mold,so that the finished packing material is obtained.

Description

technical field [0001] The invention relates to the technical field of packaging materials, in particular to a preparation method of degradable foam packaging materials. Background technique [0002] With the gradual deepening of human's understanding of their own living environment and its influencing factors, people's awareness of environmental protection has rapidly increased. strict restrictions. At present, the cushioning packages of various industrial products in the world are mostly made of lightweight and convenient synthetic resin foam materials, such as expanded polystyrene (EPS), polyvinyl chloride (PVC) and the like. Due to the non-degradability of these materials, their waste has caused quite serious pollution to the environment. Moreover, the chlorofluorocarbon gas released by these materials during the production process has caused serious damage to the atmospheric ozone layer that humans are resistant to care. Over the years, people have been working tirel...

Claims

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Application Information

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IPC IPC(8): C08L97/02C08L3/02C08K3/34C08K3/36C08J9/06B65D65/38
CPCY02W90/10
Inventor 黄盛
Owner WUXI HUANGSHENG PACKING PROD
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