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Silage packaging film and preparation method thereof

A technology of silage and packaging film, which is applied in the field of silage packaging film and its preparation, which can solve the problems of packaging film rupture, affecting the storage of plant feed, poor toughness, etc., and achieve the effect of improving strength

Inactive Publication Date: 2020-04-17
XIAMEN JUFU PLASTIC PRODS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, in the process of sealing and packaging plant-based feeds with packaging films, it was found that plant-based feeds mostly contain sharp straws, and the packaging film has low strength and poor toughness, which is extremely easy to cause the packaging film to rupture, affecting the storage of plant-based feeds, and even lead to spoilage of vegetable feed

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] In order to further explain the technical solution of the present invention, the present invention will be described in detail below through specific examples.

[0021] A preferred embodiment of a packaging film for silage in the present invention, which includes an upper film, a middle film and a lower film adhered together in sequence, wherein the composition of the upper film is: linear low density polyethylene 10%-50% , metallocene 25%-85%; the composition of the middle film is: linear low density polyethylene 20%-60%, metallocene 25%-85%; the composition of the lower film is: linear low density polyethylene 10%- 50%, metallocene 25%-85%, propylene-based elastomer 1%-5%.

[0022] After comparing multiple sets of test data, it is found that the packaging film made according to the above-mentioned structure and composition has a longitudinal tensile breaking strength of greater than or equal to 30 MPa and a longitudinal tensile breaking elongation of greater than or e...

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PUM

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Abstract

The invention discloses a silage packaging film and a preparation method thereof. The silage packaging film comprises an upper-layer film, a middle-layer film and a lower-layer film which are sequentially bonded together, wherein the upper-layer film is composed of the components: 10% to 50% of linear low-density polyethylene and 25% to 85% of metallocene; the middle-layer film is composed of thecomponents: 20% to 60% of linear low-density polyethylene and 25% to 85% of metallocene; the lower-layer film is composed of the components: 10% to 50% of linear low-density polyethylene, 25% to 85% of metallocene and 1% to 5% of an allyl elastomer; the packaging film is provided with the upper-layer film, the middle-layer film and the lower-layer film, and is prepared from the components, so thatthe puncture resistance, the fracture resistance and the tensile strength of the packaging film can be enhanced, and the strength and the toughness of the packaging film are improved.

Description

technical field [0001] The invention relates to the technical field of packaging films, in particular to a packaging film for silage and a preparation method thereof. Background technique [0002] Silage is a kind of feed, which is made of vegetable feed with high moisture content, which is sealed and packaged with a packaging film, and fermented during storage. It is mainly used to feed ruminants. Silage is more resistant to storage than fresh feed, and its nutritional content is stronger than dry feed. [0003] However, in the process of using the packaging film to seal the plant feed, it was found that the plant feed mostly contains sharp straws, and the packaging film has low strength and poor toughness, which is extremely easy to cause the packaging film to rupture, affecting the storage of the plant feed, and even Lead to spoilage of vegetable feed. [0004] In view of this, the present inventor has made in-depth ideas for the many defects and inconveniences caused b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/32B32B27/08B32B27/18B32B37/00C08L23/08C08L23/10C08L23/20C08J5/18
CPCB32B27/08B32B27/18B32B27/327B32B37/00C08J5/18C08J2323/08C08J2423/08C08J2423/10C08J2423/22
Inventor 陈建朝杨胜利
Owner XIAMEN JUFU PLASTIC PRODS