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Fully-degradable foam material using starch as base material and preparation method for fully-degradable foam material

A foam material, fully degradable technology, applied in the field of fully degradable foam material and its preparation, can solve the problems of lack of cushioning performance and thermal insulation performance, non-degradable, waste environmental pollution, etc., to achieve low price, low product cost, Get a Wide Range of Effects

Inactive Publication Date: 2013-03-27
ECOTA ENVIRONMENTAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Foaming materials (such as polystyrene, polyvinyl chloride, polyurethane and other foaming materials) widely used in the packaging industry at present, most of their raw materials are made on the basis of petroleum and cannot be degraded, and their wastes cause serious pollution to the environment
At present, although some materials containing natural polymer substances have degradable properties and are conducive to reducing environmental pollution, their buffer properties and thermal insulation properties are relatively lacking.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] First, according to the following weight ratio ratio, prepare the raw materials required for the fully degradable foaming material with starch as the base material: 66.87% of starch (both are corn starch), 25% of cellulose (both are reed cellulose) , foaming agent 1.05% (both azodicarbonamide), plasticizer 1.2% (both glycerin), antioxidant 0.80% (both 2,2`-methylenebis(4-methyl- 6-tert-butylphenol)), stabilizer 0.39% (all are zinc stearate), lubricant 2.9% (all are talcum powder), release agent 1.79% (all are stearyl alcohol).

[0024] Then, according to the following steps successively, the fully degradable foaming material with starch as the base material is prepared:

[0025] (1) Starch and water at a temperature of 80° C. are added to a mixer for mixing, and stirred for 4 minutes. The rotating speed of the agitator in the mixer is 100 rpm to obtain a starch paste;

[0026] (2) Add cellulose into the mixer and stir for 6 minutes. The speed of the agitator in the mix...

Embodiment 2

[0032] First, according to the following weight ratio proportioning, prepare the raw materials required for the fully degradable foaming material with starch as the base material: starch 72% (wherein potato starch 50%, tapioca starch 22%), cellulose 20% ( Wherein hemp cellulose 5%, straw cellulose 15%), foaming agent 1% (both Freon), plasticizer 1.5% (both epoxy soybean oil), antioxidant 0.5% (both four (β -(3,5-di-tert-butyl-4-hydroxy) phenylpropionate) pentaerythritol ester), stabilizer 1.7% (all are calcium stearate), lubricant 2.5% (all are talcum powder), release agent 0.8% (all microcrystalline wax).

[0033] Then, according to the following steps successively, the fully degradable foaming material with starch as the base material is prepared:

[0034] (1) Starch and water at a temperature of 85° C. are added to a mixer for mixing, and stirred for 3 minutes. The rotating speed of the agitator in the mixer is 120 rpm to obtain a starch paste;

[0035] (2) Add cellulose ...

Embodiment 3

[0041] First, according to the following weight ratio ratio, prepare the raw materials needed for the fully degradable foaming material with starch as the base material: starch 84.69% (all are tapioca starch), cellulose 13% (wherein straw cellulose 8% , wood cellulose 5%), foaming agent 0.5% (both are substituted butane), plasticizer 0.23% (wherein glycerol 0.15%, epoxy soybean oil 0.08%), antioxidant 0.18% (both are 2, 2`-methylenebis(4-methyl-6-tert-butylphenol)), stabilizer 0.39% (both zinc stearate), lubricant 0.78% (both talcum powder), release agent 0.23 % (both paraffin).

[0042] Then, follow the steps below to prepare the fully degradable foaming material with starch as the base material:

[0043] (1) Starch and water at a temperature of 90° C. are added to a mixer for mixing, and stirred for 5 minutes. The rotating speed of the agitator in the mixer is 80 rpm to obtain a starch paste;

[0044] (2) Add the cellulose into the mixer and stir for 8 minutes. The speed o...

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Abstract

The invention discloses a fully-degradable foam material using starch as a base material. The foam material comprises the following raw materials in percentage by weight: 65 to 84.69 percent of starch, 13 to 25 percent of cellulose, 0.5 to 1.05 percent of foaming agent, 0.23 to 1.79 percent of plasticizing agent, 0.18 to 0.80 percent of antioxidant, 0.39 to 2.38 percent of stabilizing agent, 0.78to 2.98 percent of lubricating agent and 0.23 to 1.79 percent of mould release agent. The invention also discloses a preparation method for the fully-degradable foam material using the starch as the base material. In the invention, the starch and the cellulose are used as the base material, and the fully-degradable foam material prepared by foam forming has higher elastic resilience, higher buffering performance and higher thermal insulation performance, and can be completely degraded and does not pollute the environment after being discarded; in addition, a fully-degradable foam material product has lower cost and is easy to popularize and apply.

Description

technical field [0001] The invention relates to a polymer compound composition, in particular to a starch-based fully degradable foaming material and a preparation method thereof. Background technique [0002] At present, the foaming materials (such as polystyrene, polyvinyl chloride, polyurethane and other foaming materials) widely used in the packaging industry are mostly made on the basis of petroleum, which cannot be degraded, and their wastes cause serious pollution to the environment. At present, although some materials containing natural polymer substances have degradable properties and are conducive to reducing environmental pollution, their cushioning properties and thermal insulation properties are relatively lacking. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a starch-based fully degradable foaming material and a preparation method thereof. The fully degradable foaming material can be completely d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L3/02C08L1/02C08J9/10C08J9/14B29C44/60
Inventor 王惠群
Owner ECOTA ENVIRONMENTAL TECH
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