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Starch-base foam material and preparing method thereof

A foam material and starch-based technology, applied in the field of starch-based foam materials and their preparation, can solve the problems of polluted air and atmospheric environment, high cost, damage to soil structure, etc. The effect of wide application

Inactive Publication Date: 2019-01-04
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the current products have many defects. For example, EPS has the characteristics of anti-aging and anti-corrosion, so it is not easy to rot and degrade in nature. If it is buried deeply, it will pollute the groundwater source and destroy the soil structure; if it is incinerated, it will seriously pollute the air and atmosphere. Environment; if it is recycled, the workload will be heavy and the cost will be high; secondly, EPS comes from petroleum, which is a non-renewable resource and cannot be recycled

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A starch-based foam was prepared following the method steps described in the Summary of the Invention.

[0027] A kind of preparation method of starch-based foam material, comprises the following steps:

[0028] 1) Stir 20-50% (proportion of total starch) polyvinyl alcohol PVA and a certain amount of distilled water evenly, place it at 65°C-80°C to dissolve to obtain a transparent viscous liquid, cool for 24 hours for later use, and obtain processed polyethylene Alcohol PVA;

[0029] 2) Stir 10-30% (the proportion of total starch) starch with a certain amount of distilled water evenly, and conduct gelatinization treatment at 70°C-90°C to obtain a transparent liquid adhesive, cool for 24 hours for later use, and prepare gelatinized starch;

[0030] 3) Take another 90-70% (accounting for the proportion of total starch) starch and 35-50% (accounting for the proportion of starch in 3)) plasticizer under the action of a high-speed mixer, stir for 2 hours to make it evenly ...

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PUM

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Abstract

The invention discloses a starch-base foam material and a preparing method thereof. Compared with an extrusion foaming preparing technology of a starch-base foam material, a mold pressing foaming technology is simple, a surface layer has the high density, multiple holes exist in the starch-base foam material, and the starch-base foam material with the complex shape can be prepared; in addition, starch plastifying, component blending and material forming are achieved through an internal mixer and an open mill with the technology method for preparing the foam material through rubber, the novel preparing method for the starch-base foam material is researched and obtained, and the application range of the starch-base foam material is widened.

Description

technical field [0001] The invention belongs to the technical field of material preparation, and relates to a buffer in a logistics packaging box, in particular to a starch-based foam material and a preparation method thereof. Background technique [0002] The existing buffers used in packaging boxes are mainly made of petroleum through extrusion and blow molding processes. The process is simple, the raw material polystyrene (EPS), mainly comes from petroleum resources, its price is low, the production process is mature, and it has been used industrially. [0003] However, the current products have many defects. For example, EPS has the characteristics of anti-aging and anti-corrosion, so it is not easy to rot and degrade in nature. If it is buried deeply, it will pollute the groundwater source and destroy the soil structure; if it is incinerated, it will seriously pollute the air and atmosphere. Environment; if it is recycled, the workload will be heavy and the cost will b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L3/02C08L29/04C08L5/00C08K5/098C08K3/34C08J9/10
CPCC08J9/0023C08J9/0061C08J9/0066C08J9/103C08J2203/04C08J2303/02C08J2403/02C08J2405/00C08J2429/04
Inventor 林涛张希娟殷学风袁枚田杏欢范晶段敏李静
Owner SHAANXI UNIV OF SCI & TECH
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