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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, and non-degradable after use. These problems hinder the widespread use of plastic packaging materials

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

Embodiment 1

[0040] Put 1.0 g of montmorillonite organically modified by quaternary ammonium salts into 100 ml of deionized water, ultrasonicate for 2 hours at a frequency of 50KHz, seal the system and stir vigorously at a speed of 120rpm for one week; take 1g of polyvinyl alcohol ( PVA) was put into the above system, and the stirring was continued for 24 hours to obtain a PVA-intercalated montmorillonite solution, which was macroscopically transparent and uniform, and the system was stable. Dip the polymethylethylene carbonate film with a thickness of 40um into the montmorillonite solution intercalated with PVA, take it out and put it in 80 oC After drying in an oven for 10 minutes, a biodegradable high-barrier plastic film material is obtained, 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.

Embodiment 2

[0042] Put 1.5 g of montmorillonite organically modified by quaternary ammonium salts into 100 ml of deionized water, ultrasonicate for 2 hours, the ultrasonic frequency is 60KHz, seal the system and stir vigorously at a speed of 160rpm for one week; take 1g of polyvinyl alcohol ( PVA) was put into the above system, and the stirring was continued for 24 hours to obtain a PVA-intercalated montmorillonite solution, which was macroscopically transparent and uniform, and the system was stable. Dip the 200um thick polymethylethylene carbonate film into the montmorillonite solution intercalated with PVA, take it out and put it in 80 o C drying in an oven for 10 minutes to obtain a biodegradable high-barrier plastic film material, 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.

Embodiment 3

[0044]Put 1.0 g of hydrotalcite organically modified by 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 a speed of 130rpm for one week; take 1 g poly Put vinyl alcohol (PVA) into the above system and continue to stir for 24 hours to obtain a PVA-intercalated hydrotalcite solution. The solution is macroscopically transparent and uniform, and the system is stable. Dip the polymethylethylene carbonate film with a thickness of 500um into the PVA-intercalated hydrotalcite solution, take it out and put it in 80 o C drying in an oven for 10 minutes to obtain a biodegradable high-barrier plastic film material, 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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