Biodegradable high-barrier plastic film material and preparation method thereof

A plastic film and biodegradable technology, which is applied in polyether coatings, fibrous fillers, dyed low-molecular organic compounds, etc., can solve the problems of high price, hindering the widespread use of plastic packaging materials, narrow processing window, etc., and achieve high barrier Performance, good biodegradability, simple and effective method

Active Publication Date: 2014-12-10
SUN YAT SEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The common characteristics of these plastics are: few varieties, high price, narrow processing window,

Method used

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  • Biodegradable high-barrier plastic film material and preparation method thereof
  • Biodegradable high-barrier plastic film material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0039] Example 1

[0040] Put 1.0 g of montmorillonite organically modified with quaternary ammonium salt into 100 ml of deionized water, ultrasonicate for 2 hours at an ultrasonic frequency of 50KHz, seal the system and stir vigorously at 120rpm for one week; take 1g of polyvinyl alcohol ( PVA) Put it into the above system, continue to stir for 24 hours to obtain the PVA intercalated montmorillonite solution, which is macroscopically transparent and uniform, and the system is stable. Dip the polymethylethylene carbonate film with a thickness of 40um into the PVA intercalated montmorillonite solution, take it out and place it at 80 oC Dry in an oven for 10 minutes to obtain a biodegradable high-barrier plastic film material, and the thickness of the coating layer is 1.2um. The results of oxygen transmission rate and water vapor transmission rate are shown in Table 1.

Example Embodiment

[0041] Example 2

[0042] Put 1.5 g of montmorillonite organically modified with quaternary ammonium salt into 100 ml of deionized water, ultrasonicate for 2 hours at an ultrasonic frequency of 60KHz, seal the system and stir vigorously at 160rpm for one week; take 1g of polyvinyl alcohol ( PVA) Put it into the above system, continue to stir for 24 hours to obtain the PVA intercalated montmorillonite solution, which is macroscopically transparent and uniform, and the system is stable. Dip the 200um polymethylethylene carbonate film into the PVA intercalated montmorillonite solution, take it out and place it in 80 o Dried in oven C for 10 minutes to obtain a biodegradable high-barrier plastic film material, and the thickness of the coating layer is 1.25um. The results of oxygen transmission rate and water vapor transmission rate are shown in Table 1.

Example Embodiment

[0043] Example 3

[0044] Put 1.0 g of the hydrotalcite organically modified with sodium lauryl sulfate into 100 ml of deionized water, ultrasonicate for 2 hours at an ultrasonic frequency of 40KHz, seal the system and stir vigorously at 130rpm for one week; take 1 g of poly Put vinyl alcohol (PVA) into the above system and continue to stir for 24 hours to obtain a PVA intercalated hydrotalcite solution, which is macroscopically transparent and uniform, and the system is stable. Dip the polymethylethylene carbonate film with a thickness of 500um into the hydrotalcite solution of PVA intercalation, and place it in 80 o After drying in oven C for 10 minutes, the biodegradable high-barrier plastic film material is obtained, and the thickness of the coating layer is 1.15um. The results of oxygen transmission rate and water vapor transmission rate are shown in Table 1.

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Abstract

The invention relates to a biodegradable high-barrier plastic film material and a preparation method thereof. According to the preparation method, the biodegradable high-barrier plastic film material is prepared by applying water-soluble polymer intercalated organically modified phyllosilicate maceration steeping liquor to a matrix polymer film and drying. The biodegradable high-barrier plastic film material prepared by the method has excellent damp-proofing and air-proofing performances, and has the advantages of relatively low cost, excellent biodegradability and the like.

Description

technical field [0001] The invention relates to a degradable high-barrier plastic film material, and more specifically, to a biodegradable high-barrier plastic film material and a preparation method thereof. Background technique [0002] In recent years, the research and development of high-barrier materials has become a hot topic in the field of plastic packaging materials. This type of material has high barrier properties to oxygen, water vapor and carbon dioxide, making it moisture-proof, color-preserving, and fragrance-preserving. , so it can be well adapted to the needs of various special plastic packaging materials. [0003] Plastic packaging materials are closely related to human life from industrial products to daily life, and are the fastest growing and most widely used varieties in the field of plastic products. With the progress and development of society, high efficiency, energy saving and environmental protection have become the development trend of plastic pac...

Claims

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Application Information

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IPC IPC(8): C08J7/04C08L69/00C09D129/04C09D171/08C09D7/12C09C1/42C09C3/08
Inventor 孟跃中李高峰郑洁肖敏王拴紧韩东梅
Owner SUN YAT SEN UNIV
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