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Low-cost and high-resilience biodegradable shock-absorbing packaging material and preparation method thereof

A technology of biodegradable and packaging materials, which is applied in the field of low-cost and high-resilience biodegradable shock-absorbing packaging materials and its preparation, can solve the problems of easy moisture, low foaming ratio, and low rebound rate, and achieve good moisture resistance and low cost. Inexpensive, moderately flexible effect

Active Publication Date: 2019-09-06
赣州臻丰科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Aiming at the defects of low rebound rate, low foaming ratio and easy dampness in the current starch foam packaging materials, the present invention proposes a low-cost, high-resilience biodegradable shock-absorbing packaging material and a preparation method, thereby ensuring starch foaming While the material is low cost and biodegradable, it improves the material's resilience, foaming ratio and water resistance, and has excellent shock absorption and buffering effect

Method used

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  • Low-cost and high-resilience biodegradable shock-absorbing packaging material and preparation method thereof
  • Low-cost and high-resilience biodegradable shock-absorbing packaging material and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0032](1) Add starch and water to a high-speed mixer, heat to 90°C and stir at a speed of 580rpm for 16 minutes to gelatinize the starch to form a paste, then add the unbundled straw fibers to the high-speed mixer and continue to stir for 24 minutes. Make the starch paste completely adhere to the straw fiber and form a lump, then discharge, cool, and crush to obtain a fluffy floc; the starch is mung bean starch; wherein, the mass ratio of starch, water, and straw fiber is 10:6:23 ;

[0033] (2) Add starch, polyvinyl alcohol, nucleating agent, and silicone oil into a high-speed mixer, disperse evenly at room temperature, then add water, and continue stirring until semi-dry to obtain a semi-dry material; the starch is mung bean starch; The straw fiber is obtained by processing wheat straw; the nucleating agent is nano talcum powder; wherein, the mass ratio of starch, polyvinyl alcohol, nucleating agent, silicone oil, and water is 100:90:9:16:12;

[0034] (3) Send the semi-dry m...

Embodiment 2

[0041] (1) Add starch and water to a high-speed mixer, heat to 60°C and stir at a speed of 500rpm for 18 minutes to gelatinize the starch to form a paste, then add the unbundled straw fibers to the high-speed mixer and continue to stir for 20 minutes. Make the starch paste completely adhere to the straw fiber and form a lump, then discharge, cool, and crush to obtain a fluffy floc; the starch is tapioca starch; wherein, the mass ratio of starch, water, and straw fiber is 10:6:15 ;

[0042] (2) Add starch, polyvinyl alcohol, nucleating agent, and silicone oil into a high-speed mixer, disperse evenly at room temperature, then add water, and continue stirring until semi-dry to obtain a semi-dry material; the starch is tapioca starch; The straw fiber is obtained by processing rice straw; the nucleating agent is nano silicon dioxide; wherein, the mass ratio of starch, polyvinyl alcohol, nucleating agent, silicone oil, and water is 100:70:5:12:12;

[0043] (3) Send the semi-dry mat...

Embodiment 3

[0047] (1) Add starch and water to a high-speed mixer, heat to 100°C and stir at a speed of 700rpm for 12 minutes to gelatinize the starch to form a paste, then add the unbundled straw fibers to the high-speed mixer and continue stirring for 30 minutes. Make the starch paste completely adhere to the straw fiber and form a lump, then discharge, cool, and pulverize to obtain a fluffy floc; the starch is sweet potato starch; wherein, the mass ratio of starch, water, and straw fiber is 10:6:30 ;

[0048] (2) Add starch, polyvinyl alcohol, nucleating agent, and silicone oil into a high-speed mixer, disperse evenly at room temperature, then add water, and continue stirring until semi-dry to obtain a semi-dry material; the starch is sweet potato starch; Straw fibers are processed from corn stalks; the nucleating agent is nano-talc powder; wherein, the mass ratio of starch, polyvinyl alcohol, nucleating agent, silicone oil, and water is 100:100:15:18:12;

[0049] (3) Send the semi-dr...

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Abstract

The invention provides a low-cost and high-resilience biodegradable shock-absorbing packaging material and a preparation method thereof. The preparation method comprises the following steps: gelatinizing starch, stirring the gelatinized starch and unbunched straw fibers at a high speed to form a flocculent material, mixing starch, polyvinyl alcohol, a nucleating agent, silicone oil and water, performing screw extrusion on the obtained mixture, crushing the extruded mixture to form particles, uniformly mixing the flocculent material with the particles, and performing extrusion foaming by a single screw machine to prepare the shock-absorbing foamed packaging material. The shock-absorbing packaging material provided by the invention has the advantages of full degradation, low cost, excellentresilience, uniform surface gloss, good water and moisture resistance, moderate hardness, proper elasticity, soft surface and broad application prospect.

Description

technical field [0001] The invention relates to the technical field of packaging materials, in particular to a low-cost, high-resilience biodegradable shock-absorbing packaging material and a preparation method. Background technique [0002] In recent years, with the development of the commodity economy, especially the e-commerce industry, in order to avoid damage during the transportation of goods, the role of packaging materials has become increasingly prominent, and the scale of the packaging market has expanded rapidly, especially for various electronic products, ceramic products, and glass products. , Precision appliances have entered the e-commerce logistics industry, which has increased the demand for cushioning packaging materials. Among them, foamed plastics have become widely used cushioning materials in modern times due to their good cushioning properties and shock absorption properties. [0003] However, the widespread use of foamed plastic packaging materials h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L3/02C08L29/04C08L83/04C08L97/02C08K3/36C08K3/34C08J9/00B65D65/46
CPCB65D65/466C08J9/0061C08J9/0071C08J2201/03C08J2303/02C08J2429/04C08J2483/04C08J2497/02Y02W90/10
Inventor 曾军堂陈庆
Owner 赣州臻丰科技有限公司
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