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Completely-biodegradable casting polypropylene film and manufacturing method thereof

A salivating polypropylene, biodegradation technology, applied in the direction of chemical instruments and methods, synthetic resin layered products, coatings, etc., can solve the problems of reduced mechanical properties of plastics, limited utilization of solar radiation, etc., to achieve good degradation effect, The effect of achieving degradation controllability

Active Publication Date: 2014-07-02
浙江蓝也科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The transition metal ions such as cobalt and cerium contained in this type of oxidative-biodegradable plastic can only absorb visible light, and the utilization rate of solar radiation is still limited, and the mechanical properties of the plastic are reduced due to the doping of a large number of small molecules.

Method used

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  • Completely-biodegradable casting polypropylene film and manufacturing method thereof
  • Completely-biodegradable casting polypropylene film and manufacturing method thereof
  • Completely-biodegradable casting polypropylene film and manufacturing method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0040] Embodiment 1: A kind of fully biodegradable salivating polypropylene (CPP) composite film, its outer layer selects the weight percentage to be respectively 96.5% of copolymerized polypropylene, anti-adhesion masterbatch 2.5% AB05PS, the component preparation of completely biodegradable material 1.0% and the melt index of the copolymerized polypropylene ranges from 5.5 to 8.0 g / 10min; the core layer is selected from the components of homopolypropylene 97.5%, smooth masterbatch 1.5% SE07PP, and fully biodegradable material 1.0% by weight. The melt index range of homopolypropylene is 2.8-8.5 g / 10min; the inner surface layer is made of homopolypropylene 96.5%, anti-adhesion masterbatch 2.5% AB05PS, and fully biodegradable material 1.0% by weight. The melt index range of homopolypropylene is 2.8-8.5 g / 10min; the thickness of the outer layer is controlled at 5 μ, the thickness of the core layer is controlled at 29.5 μ, and the thickness of the inner layer is controlled at 4.5 ...

Embodiment 2

[0042] Example 2: A completely biodegradable salivating polypropylene (CPP) anti-fog film, the outer layer of which is selected from a composition of 96.5% by weight of copolymerized polypropylene, 2.5% of anti-adhesion masterbatch AB05PS, and 1.0% of completely biodegradable materials. and the melt index range of the copolymerized polypropylene is 5.5-8.0 g / 10min; the weight percentages of the core layer are homopolypropylene 96.0%, smooth masterbatch 0.5% SE07PP, anti-fog masterbatch 2.5% AF20PP1, complete It is made of biodegradable materials with 1.0% components, and the melt index range of homopolypropylene is 2.8-8.5 g / 10min; the inner and surface layers are made of copolymer polypropylene 95.0%, anti-adhesion masterbatch 2.5% AB05PS, anti-adhesion Fog masterbatch 1.5% AF20PP1, fully biodegradable material 1.0% is formulated, and the melt index range of copolymerized polypropylene is 5.5-8.0g / 10min; the thickness of the outer layer is controlled at 5μ, and the thickness o...

Embodiment 3

[0044] Embodiment 3: A completely biodegradable salivating polypropylene (CPP) aluminized substrate film, the outer layer of which is selected from the group consisting of 96% by weight of copolymerized polypropylene, 3% of anti-blocking masterbatch AB05PS, and 1.0% of completely biodegradable materials. The melt index range of the copolymerized polypropylene is 5.5-8.0 g / 10min; the core layer is made of components with the weight percentages of homopolypropylene 99% and fully biodegradable materials 1.0%, and both The melt index of polypropylene ranges from 2.8 to 8.5 g / 10min. The inner surface layer is made of components whose weight percent is respectively 99.0% of copolymerized polypropylene and 1.0% of completely biodegradable material, and the melt index range of the copolymerized polypropylene is 5.5-8.0 g / 10min. The thickness of the outer surface layer is controlled to be 5μ, the thickness of the core layer is controlled to be 15.5μ, and the thickness of the inner surf...

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Abstract

The invention relates to a completely-biodegradable casting polypropylene film and a manufacturing method thereof. The completely-biodegradable casting polypropylene film comprises an outer surface layer, a core layer and an inner surface layer, wherein 0.5-1.0 weight percent of completely-biodegradable material and other ingredients are respectively added into the outer surface layer, the core layer and the inner surface layer for preparation through the existing casting equipment and process. The completely-biodegradable material is a fused blend of a pre-oxidant A, a pre-oxidant B, a slow-release agent, a natural plant cellulose and polypropylene. The completely-biodegradable casting polypropylene film is abandoned to the natural environment to be degraded for two stages, wherein the first stage is oxidation fragmentation, and the second stage is biodegradation; finally, carbon dioxide, water and humus are generated, and thereby the purpose that plastics enters the natural material circulation system is achieved. The additive amount of the completely-biodegradable material is adjusted, so that the degradation cycle can be controlled, and the film does not influence the quality of soil after being completely biodegraded.

Description

technical field [0001] The invention relates to a completely biodegradable salivating polypropylene (CPP) film and a manufacturing method thereof, belonging to the technical field of salivating polypropylene (CPP) film processing. Background technique [0002] According to the latest statistics from PIRA in the United States, the demand for plastics in the global flexible packaging industry accounted for 80% of all demanded materials in 2012, reaching 14,997 thousand tons, and the compound annual growth rate of demand for plastics from 2012 to 2017 was 7.7%. Among the market demands of global end customers for flexible packaging, the compound annual growth rate of food packaging is 4.3% from 2012 to 2017, and the compound annual growth rate of cosmetic packaging is 5.5%. The cumulative output of plastic products in China from January to October 2013 was 50.18 million tons, an increase of 8.64% over the same period. Salivating polypropylene (CPP) film, as a kind of packaging...

Claims

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Application Information

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IPC IPC(8): B32B27/06B32B27/18B32B27/32B29C69/00B29C41/52
Inventor 梁雁扬韦丽明曾令丰
Owner 浙江蓝也科技股份有限公司
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