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A kind of antistatic biodegradable film and preparation method thereof

A biodegradable and antistatic technology, applied in the field of materials, can solve the problems that the film properties need to be further improved, limit the application of biodegradable material films, and have no antistatic properties, so as to reduce electrostatic aggregation, complete degradation, and excellent mechanical properties. Effect

Active Publication Date: 2018-04-27
SHANGHAI GENIUS ADVANCED MATERIAL (GRP) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Chinese patent 201019050017.7 introduces a production method of a biodegradable film that prevents damage to the soil structure. Starch, polyvinyl alcohol, biodegradable polyester, etc. are mixed and granulated in proportion to prepare film products. The method is simple, but the film performance is not good. Further improvement is needed; Chinese patent 200910109765.8 discloses an antistatic degradable film material and its preparation method, which uses low-density polyethylene, linear low-density polyethylene, starch-based degradable plastic raw materials and antistatic masterbatch to prepare the film. The finished product has good antistatic effect, but this kind of film material is only partially degraded, which still has a certain impact on the environment
However, the existing degradable plastic film packaging materials generally do not have antistatic properties, which limits the application of biodegradable material films in the electronics industry

Method used

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  • A kind of antistatic biodegradable film and preparation method thereof
  • A kind of antistatic biodegradable film and preparation method thereof
  • A kind of antistatic biodegradable film and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] (1) Dry the PBAT at a drying temperature of 70°C and a drying time of 9 hours;

[0031] (2) Weigh 70 parts of polybutylene terephthalate / adipate, 15 parts of polyethylene glycol, 3 parts of antistatic agent (polyamide), and 12 parts of lubricant (stearic acid amide). Mix evenly in the mixer, and the mixing time is 5 minutes;

[0032] (3) Add the mixed materials into a twin-screw extruder for melt blending, then strand and pelletize to obtain blended polyester pellets, and the extrusion temperature is 110°C;

[0033] (4) Blow the blended polyester particles and lubricant through a film blowing machine to obtain an antistatic degradable polyester film. The feeding temperature of the film blowing machine is set at 130°C, and the temperature of the plasticizing section is set at 165°C , and the die temperature was set to 155°C.

Embodiment 2

[0035] (1) Dry the PBAT at a drying temperature of 60°C and a drying time of 10 hours;

[0036] (2) Weigh 60 parts of polybutylene terephthalate / adipate, 25 parts of polyethylene glycol, 5 parts of antistatic agent (polyoxyethylene ether), 15 parts of lubricant (methylene bis stearamide) Parts, mix evenly in a high mixer, mixing time 3min;

[0037] (3) Put the mixed material into a twin-screw extruder for melt blending, then strand and pelletize to obtain blended polyester pellets, and the extrusion temperature is 100°C;

[0038] (4) Blow the blended polyester particles and lubricant through a film blowing machine to obtain an antistatic degradable polyester film. The feeding temperature of the film blowing machine is set at 120°C, and the temperature of the plasticizing section is set at 150°C , the die temperature was set to 150 °C.

Embodiment 3

[0040] (1) Dry the PBAT at a drying temperature of 80°C and a drying time of 8 hours;

[0041] (2) Weigh 80 parts of polybutylene terephthalate / adipate, 10 parts of polyethylene glycol, 2 parts of antistatic agent (trialkylaniline salt), lubricant (calcium stearate, stearin Zinc acid) 4 parts each, mix evenly in a high-speed mixer, and the mixing time is 7 minutes;

[0042] (3) Put the mixed material into a twin-screw extruder for melt blending, then strand and pelletize to obtain blended polyester pellets, and the extrusion temperature is 120°C;

[0043] (4) Blow the blended polyester particles and lubricant through a film blowing machine to obtain an antistatic degradable polyester film. The feeding temperature of the film blowing machine is set at 135°C, and the temperature of the plasticizing section is set at 160°C , the die temperature was set to 160 °C.

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Abstract

The invention belongs to the field of biological materials, and relates to an antistatic biodegradable film material and a production method thereof. The antistatic biodegradable film material is made of components comprising the following parts by weight: polybutylene terephthalate / adipate 60-90 parts, polyethylene glycol 5-25 parts, antistatic agent 1 ‑5 parts, lubricant 5‑15 parts. Compared with the prior art, the antistatic degradable film prepared by the present invention can adapt to different climatic conditions in various places, and can start to degrade after a certain period of time, and the degradation is uniform and thorough, without causing secondary pollution, and has great impact on the environment. It has important practical significance; the film has stable and long-lasting antistatic properties, and is suitable for electronic product packaging, especially for the production of diffusion films, anti-scratch films and other films for flat panel display backlight modules. By reducing static electricity accumulation, The problem that packaged goods are easily damaged by static electricity is solved; the preparation method has simple process, is easy to control, and is suitable for industrialized production.

Description

technical field [0001] The invention belongs to the technical field of materials, and relates to a biodegradable film and a preparation method thereof. Background technique [0002] Petrochemical plastic products have already penetrated into various fields of human life. While bringing convenience to people, they inevitably bring about problems such as energy consumption and environmental pollution. At present, the "white pollution" caused by the extensive use of plastic products has brought serious harm to the ecological environment, such as the reduction of production in many fertile fields, land desertification, and river blockage. As an environmentally friendly material, degradable plastics have become a research and development hotspot in the world today. Its development has alleviated environmental conflicts and resource constraints to a certain extent. Therefore, the research and development and application of biodegradable materials meet the requirements of sustainab...

Claims

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Application Information

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IPC IPC(8): C08L67/02C08L71/08
Inventor 杨桂生严莉莉
Owner SHANGHAI GENIUS ADVANCED MATERIAL (GRP) CO LTD
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