Oxygen-separating and degradable thin plastic film

A technology of plastic film and degradable material, which is applied in the field of plastic film materials, can solve the problems of affecting the quality of packaging, lack of mechanical properties of film materials, poor oxygen barrier properties of films, etc. It is easy to implement in industrialization, realizes environmental friendliness and production efficiency high effect

Inactive Publication Date: 2013-06-19
TIANJIN JINSHENGYU PLASTIC PROD SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This new type of plasma display panel (Plasma Display) uses an improved version made from special materials called Stabilized Plastin Polymer Film(SPF). These films have better gas impermeabilities than regular polymers used for their main components like liquid crystals or electrodes. They also allow air bubbles between them when they break down into small particles that help prevent damage caused by external factors such as impacts during manufacturing processes. Overall these improvements make it more durably resistant against harmful gases found inside buildings while still being effective at keeping out germs.

Problems solved by technology

Technological Problem addressed in this patents relates to developing a novel type of plasma wrap package material that meets both aerobiobility and imperviousness against gas leakage while maintaining excellent biocompatibility. Current plastisized plastic packages use nonbiodescent polytetrafluoroacetamide (PTAN) but they still suffer from poor moisture resistance due to the presence of water vapor within them. There is a technical problem being solved by these innovative technologies such as starch based plastsheets and biopolystrans.

Method used

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  • Oxygen-separating and degradable thin plastic film
  • Oxygen-separating and degradable thin plastic film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A kind of oxygen barrier and degradable plastic film, its preparation method comprises the following steps:

[0027] (1) Weigh LDPE, 100Kg; PBM degradation material, 50Kg; Pullulan polysaccharide, 40Kg; antioxidant 1010, 4 Kg; phenyl salicylate, 0.5Kg;

[0028] ⑵According to the step ⑴ formula, mix LDPE, Pullulan polysaccharide, antioxidant 1010, phenyl salicylate, etc. in a conventional high-speed mixer for 30 minutes, extrude and granulate in a twin-screw extruder to form a masterbatch; extrude The temperatures of the four sections in the back section of the granulator barrel are 180°C, 190°C, 190°C, and 200°C respectively, the temperatures in the four sections in the front section of the barrel are 200°C, 210°C, 210°C, and 230°C, and the temperatures in the two sections of the machine head are respectively 230°C, 230°C;

[0029] (3) Mix the masterbatch and PBM degradation material in step (2), extrude and blow the film by the plastic film blowing machine, the temper...

Embodiment 2

[0031] A kind of oxygen barrier and degradable plastic film, its preparation method comprises the following steps:

[0032] (1) Weigh LDPE, 100Kg; PBM degradation material, 70Kg; Pullulan, polysaccharide 40Kg; antioxidant 1010, 4 Kg; phenyl salicylate, 1Kg;

[0033] ⑵According to the step ⑴ formula, mix LDPE, Pullulan polysaccharide, antioxidant 1010, phenyl salicylate, etc. in a conventional high-speed mixer for 30 minutes, extrude and granulate in a twin-screw extruder to form a masterbatch; extrude The temperatures of the four sections in the back section of the granulator barrel are 180°C, 190°C, 190°C, and 200°C respectively, the temperatures in the four sections in the front section of the barrel are 200°C, 210°C, 210°C, and 230°C, and the temperatures in the two sections of the machine head are respectively 230°C, 230°C;

[0034](3) Mix the masterbatch and PBM degradation material in step (2), extrude and blow the film by the plastic film blowing machine, the temperatu...

Embodiment 3

[0036] A kind of oxygen barrier and degradable plastic film, its preparation method comprises the following steps:

[0037] (1) Weigh LDPE, 100Kg; PBM degradation material, 60Kg; Pullulan, polysaccharide 30Kg; antioxidant 1010, 3 Kg; phenyl salicylate, 1Kg;

[0038] ⑵According to the step ⑴ formula, mix LDPE, Pullulan polysaccharide, antioxidant 1010, phenyl salicylate, etc. in a conventional high-speed mixer for 25 minutes, extrude and granulate in a twin-screw extruder to form a masterbatch; extrude The temperatures of the four sections in the back section of the granulator barrel are 180°C, 190°C, 190°C, and 200°C respectively, the temperatures in the four sections in the front section of the barrel are 200°C, 210°C, 210°C, and 230°C, and the temperatures in the two sections of the machine head are respectively 230°C, 240°C;

[0039] (3) Mix the masterbatch and PBM degradation material in step (2), extrude and blow the film by the plastic film blowing machine, the temperat...

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Abstract

The invention relates to an oxygen-separating and degradable thin plastic film which contains the following raw constituents in parts by weight: 100 parts of low-density polyethylene, 50-70 parts of PBM (Plant Base Master batch), 20-40 parts of pullulan, 2-4 parts of antioxidant, and 0.5-1 part of ultraviolet light absorber. The excellent mechanical property of the thin film is guaranteed by utilizing the characteristics of LDPE (Low-Density Polyethylene), the environment friendliness of the thin film material is realized by utilizing the degradability of the PBM and the pullulan; the oxygen separating property of the thin film material is increased by utilizing the high oxygen separating property of the pullulan; the whole compatibility of the thin film material is increased by utilizing the structural similarity of starch and the pullulan as carbohydrates; and the oxygen separating property, the degradability and the like can be adjusted and controlled by controlling the blending proportion of LDPE/PBM/Pullulan systems.

Description

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Claims

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Application Information

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Owner TIANJIN JINSHENGYU PLASTIC PROD SCI & TECH CO LTD
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