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Enhanced starch based packaging composite material and preparation method thereof

A composite material and starch-based technology, applied in the field of materials, can solve problems such as poor mechanical properties, failure to meet application requirements, and decline in mechanical properties, and achieve the effect of solving performance deficiencies, good application value, and good mechanical properties

Inactive Publication Date: 2016-08-17
苏州倍力特物流设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, as a natural polymer material, starch has poor mechanical properties; in addition, because starch is easy to absorb water, it will cause mildew and also lead to a significant decline in mechanical properties. Therefore, starch-based packaging materials can only be used for mechanical properties. Low field, unable to meet wider application requirements

Method used

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  • Enhanced starch based packaging composite material and preparation method thereof

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Comparison scheme
Effect test

Embodiment 1

[0022] A preparation method of enhanced starch-based packaging composite material, comprising the following preparation steps:

[0023] 1) Weigh and proportion the raw materials of each component according to the above parts by weight: 22 parts of tapioca starch, 18 parts of corn starch, 15 parts of nightshade seed powder, 5 parts of calcium chloride, 4 parts of nano-attapulgite, 5 parts of boric acid, 20 -4 parts of 100 mesh wood fish stone powder, 2 parts of guanidine phosphate, 5 parts of calcium lignosulfonate, 3 parts of erucamide, 2 parts of beeswax, 4 parts of acetyl trioctyl citrate, 3 parts of methyl oxirane, hard 2 parts of zinc fatty acid, 4 parts of castor oil, 3 parts of silane coupling agent KH-560;

[0024] 2) Add tapioca starch, corn starch, nightshade seed powder, calcium lignosulfonate, erucamide, methyl oxirane and boric acid into the mixer, stir at 110°C for 20 minutes, take it out and cool it down to get Mixture A;

[0025] 3) Add nano-attapulgite, woody...

Embodiment 2

[0028] A preparation method of enhanced starch-based packaging composite material, comprising the following preparation steps:

[0029] 1) Weigh and proportion the raw materials of each component according to the above parts by weight: 37 parts of tapioca starch, 24 parts of corn starch, 23 parts of nightshade seed powder, 13 parts of calcium chloride, 9 parts of nano-attapulgite, 8 parts of boric acid, 20 parts -10 parts of Muyu stone powder of 100 mesh, 7 parts of guanidine phosphate, 11 parts of calcium lignosulfonate, 9 parts of erucamide, 5 parts of beeswax, 8 parts of acetyl trioctyl citrate, 6 parts of methyl oxirane, hard Zinc fatty acid 5 parts, castor oil 8 parts, silane coupling agent KH-171 3-6 parts;

[0030] 2) Add tapioca starch, corn starch, nightshade seed powder, calcium lignosulfonate, erucamide, methyl oxirane and boric acid into the mixer, stir at 135°C for 35 minutes, take it out and cool it down to get Mixture A;

[0031] 3) Add nano-attapulgite, woody...

Embodiment 3

[0034] A preparation method of enhanced starch-based packaging composite material, comprising the following preparation steps:

[0035] 1) Weigh and proportion the raw materials of each component according to the above parts by weight: 30 parts of tapioca starch, 21 parts of corn starch, 16 parts of nightshade seed powder, 9 parts of calcium chloride, 6 parts of nano-attapulgite, 6 parts of boric acid, 20 parts -7 parts of Muyu stone powder of 100 mesh, 3 parts of guanidine phosphate, 8 parts of calcium lignosulfonate, 6 parts of erucamide, 3 parts of beeswax, 6 parts of acetyl trioctyl citrate, 4.5 parts of methyl oxirane, hard Zinc fatty acid 3.5 parts, castor oil 6 parts, silane coupling agent KH-560 4.5 parts;

[0036] 2) Add tapioca starch, corn starch, nightshade seed powder, calcium lignosulfonate, erucamide, methyl oxirane and boric acid into the mixer, stir at 122°C for 27min, take it out and cool it, and get Mixture A;

[0037] 3) Add nano-attapulgite, woody stone ...

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Abstract

The invention discloses an enhanced starch based packaging composite material and a preparation method thereof. The enhanced starch based packaging composite material is prepared from the following raw materials in parts by weight: cassava starch, corn starch, nightshade seed powder, calcium chloride, nano attapulgite, boric acid, limonite powder, phosphoguanidine, calcium lignosulphonate, erucyl amide, beewax, trioctyl acetylcitrate, methyl ethylene oxide, zinc stearate, castor oil and a silane coupling agent. The enhanced starch based packaging composite material disclosed by the invention is good in mechanical property, the tensile strength of the material is as high as 72.5-77.9 MPa, the breakage elongation is as high as 147-164%, the tensile strength and the breakage elongation of the material are still kept being in relatively high value after the material is soaked for 1 hour, property defects of a conventional starch based packaging material are avoided, and good application values can be achieved.

Description

technical field [0001] The invention belongs to the field of materials, and in particular relates to a reinforced starch-based packaging composite material and a preparation method thereof. Background technique [0002] At present, plastic packaging and plastic packaging products are taking an increasing share in the market. However, the stability of plastic packaging materials is poor, and it will decompose under the action of heat and light, which will not only produce toxic substances and pollute the environment, but also lead to a decrease in mechanical strength. It is particularly urgent to develop packaging materials that are environmentally friendly and do not depend on petroleum resources. [0003] Nowadays, there are many types of degradable materials, among which starch, due to its low price and wide source, can be modified and compounded to prepare a variety of daily and industrial products, such as starch-based films, starch tableware, etc. However, as a natura...

Claims

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Application Information

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IPC IPC(8): C08L3/02C08L97/00C08L91/06C08L91/00C08K13/04C08K7/08C08K3/16C08K3/34C08K3/38
CPCC08K2201/011C08L3/02C08L2205/02C08L2205/025C08L2205/035C08L97/00C08L91/06C08L91/00C08K13/04C08K7/08C08K2003/162C08K3/346C08K3/38
Inventor 匡学明
Owner 苏州倍力特物流设备有限公司
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