Ultrathin ultra-transparent full-biodegrade film blowing level material and preparation method thereof

A degradable film and all-biological technology, applied in the field of materials, can solve the problems of decreased tensile strength and tear strength, large haze, and difficult opening of film bubbles, and achieve good processing performance and excellent mechanical properties.

Active Publication Date: 2017-11-14
SHANDONG AGRICULTURAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, we have found through experiments that ultra-thin films below 6 μm have problems such as difficulty in opening bubbles during processing, a sharp drop in tensile strength and tear strength, and large haze.

Method used

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  • Ultrathin ultra-transparent full-biodegrade film blowing level material and preparation method thereof
  • Ultrathin ultra-transparent full-biodegrade film blowing level material and preparation method thereof
  • Ultrathin ultra-transparent full-biodegrade film blowing level material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] An ultra-thin and ultra-transparent fully biodegradable film blown film grade material, the main components of which are calculated by weight:

[0027] 87 parts of polyadipate / butylene terephthalate, 10 parts of polylactic acid, 3 parts of reinforced, toughened and anti-reflective masterbatch for ultra-thin and ultra-transparent fully biodegradable film;

[0028] Wherein said poly(butylene adipate / terephthalate) is used as carrier resin, its melt flow rate is 5g / 10min, and hydroxyl value is less than 15; Described polylactic acid melt flow rate is 2.5g / 10min;

[0029] The preparation method of the ultra-thin ultra-transparent fully biodegradable film blown film grade material is as follows:

[0030] Put polyadipate / butylene terephthalate, polylactic acid, and ultra-thin ultra-transparent fully biodegradable film special reinforced, toughened and anti-reflective masterbatches into a high-speed mixer at a stirring speed of 700-1000r / min for 5-8 minutes; The uniformly mix...

Embodiment 2

[0038] An ultra-thin and ultra-transparent fully biodegradable film blown film grade material, the main components of which are calculated by weight:

[0039]85 parts of polyadipate / butylene terephthalate, 10 parts of polylactic acid, 5 parts of reinforced, toughened and anti-reflective masterbatch for ultra-thin and ultra-transparent fully biodegradable film;

[0040] Wherein said poly(butylene adipate / terephthalate) is used as carrier resin, its melt flow rate is 5g / 10min, and hydroxyl value is less than 15; Described polylactic acid melt flow rate is 2.5g / 10min;

[0041] The preparation method of the ultra-thin ultra-transparent fully biodegradable film blown film grade material is as follows:

[0042] Put polyadipate / butylene terephthalate, polylactic acid, and ultra-thin ultra-transparent fully biodegradable film special reinforced, toughened and anti-reflective masterbatches into a high-speed mixer at a stirring speed of 700-1000r / min for 5-8 minutes; The uniformly mixe...

Embodiment 3

[0049] An ultra-thin and ultra-transparent fully biodegradable film blown film grade material, the main components of which are calculated by weight:

[0050] 90 parts of polyadipate / butylene terephthalate, 5 parts of polylactic acid, 5 parts of reinforced, toughened and anti-reflective masterbatch for ultra-thin and ultra-transparent fully biodegradable film;

[0051] Wherein said polyadipate / butylene terephthalate is used as carrier resin, and its melt flow rate is 5g / 10min; Described polylactic acid melt flow rate is 2.5g / 10min;

[0052] The preparation method of the ultra-thin ultra-transparent fully biodegradable film blown film grade material is as follows:

[0053] Put polyadipate / butylene terephthalate, polylactic acid, and ultra-thin ultra-transparent fully biodegradable film special reinforced, toughened and anti-reflective masterbatches into a high-speed mixer at a stirring speed of 700-1000r / min for 5-8 minutes; The uniformly mixed mixture is put into a twin-screw...

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Abstract

The invention belongs to the field of a biodegrade high polymer material and especially relates to an ultrathin ultra-transparent full-biodegrade film blowing level material and a preparation method thereof. The material is prepared from the following raw materials: poly-adipic acid/butylene terephthalate, polylactic acid and special reinforced and toughened anti-reflection master batch. The preparation method of the film blowing level material is simple and is easy in operation; an ultrathin film in the thickness below 6um can be directly blown; the acquired film is stable under normal temperature, can be stored for 12 months in dark place, has excellent mechanical properties and can be widely applied to the fields, such as, film packaging, shopping bag, agricultural plastic mulching film and garbage classification backfilling compost treatment.

Description

technical field [0001] The invention belongs to the field of materials, and in particular relates to a plastic masterbatch, in particular to an ultra-thin, ultra-transparent fully biodegradable film blown film grade material and a preparation method thereof. Background technique [0002] Plastic films play a huge role in daily life and industrial and agricultural production. However, most of the plastic films currently used are polyolefin films that are difficult to degrade in a short period of time or incompletely degradable polyolefin films that have been added with starch and photodegradants. film. The use of these film materials has caused "white pollution" of the environment and brought safety hazards to the sustainable development of human beings. Fully biodegradable film is made of completely biodegradable plastics through blow molding, casting or calendering. It can be completely decomposed by microorganisms. The final products of its degradation are carbon dioxide ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08L67/04C08L33/12C08L91/00C08K3/36
CPCC08J5/18C08J2367/02C08J2467/04C08K2201/003C08K2201/011C08K2201/014C08L67/02C08L2201/06C08L2201/10C08L2203/16C08L2205/025C08L2205/035C08L67/04C08L33/12C08L91/00C08K3/36
Inventor 米庆华徐静艾仕云张坤
Owner SHANDONG AGRICULTURAL UNIVERSITY
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