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Full-degradable cushion packaging bag and preparation method thereof

A packaging bag, fully degradable technology, applied in the field of fully degradable cushioning packaging bags, can solve the problem of white pollution of cushioning packaging bags, and achieve good mechanical properties and barrier properties

Inactive Publication Date: 2018-01-09
WUHAN HUALI BIOLOGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the above technical problems, the present invention provides a packaging bag with cushioning function made of fully degradable materials and its preparation method to solve the white pollution problem of the existing traditional cushioning packaging bags

Method used

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  • Full-degradable cushion packaging bag and preparation method thereof
  • Full-degradable cushion packaging bag and preparation method thereof
  • Full-degradable cushion packaging bag and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] 40 parts of PBAT were weighed and dried in a blast oven at 80°C for 6 hours, and 20 parts of PLA were dried in a blast oven at 60°C for 12 hours for later use. Then add 15 parts of talcum powder to a high-speed mixer with a temperature of 120°C and stir at a speed of 600r / min for 10 minutes, then add 2 parts of silane coupling agent modification additive in two times, and stir for 5 minutes each time. 800r / min to obtain modified talcum powder for subsequent use. Finally add 2 parts of compatibilizer oligomeric epoxy chain extender, 1 part of epoxidized soybean oil, 15 parts of modified talc powder and dry PBAT and PLA, add them to the high-speed mixer and mix them evenly, then add them to the twin-screw extruder In the machine, melt and blend, extrude strands, cut pellets, and use a three-layer co-extrusion blown film machine to blown film products. After bag making, cutting, inflation, heat sealing and packaging, a fully degradable cushioning packaging bag is obtained....

Embodiment 2

[0026] 50 parts of PBAT were weighed and dried in a blast oven at 80°C for 6 hours, and 15 parts of PLA were dried in a blast oven at 60°C for 12 hours for later use. Then add 16 parts of mica stone powder to a high-speed mixer at a temperature of 120°C and stir at a speed of 600r / min for 10 minutes, then add 1.5 parts of aluminate coupling agent modification aid twice, and stir for 5 minutes each time. The stirring speed is 800r / min, and the modified mica stone powder is obtained for later use. Finally, add 1.5 parts of compatibilizer GMA, 1 part of white oil, 16 parts of modified mica stone powder and dry PBAT and PLA to a high-speed mixer and mix evenly, then add them to a twin-screw extruder for melt blending and extrusion. Strips and pellets are blown into film products using a three-layer co-extrusion blown film machine, and fully degradable cushioning packaging bags are obtained through bag making, slitting, inflation, heat sealing and packaging.

Embodiment 3

[0028] 55 parts of PBAT were weighed and dried in a forced air oven at 80°C for 6 hours, and 10 parts of PLA were dried in a forced air oven at 60°C for 12 hours for later use. Then add 16.5 parts of kaolinite powder to a high-speed mixer with a temperature of 120°C and stir at a speed of 600r / min for 10 minutes, then add 1.5 parts of zinc stearate modification additive in two times, stir for 5 minutes each time, and stir The speed is 800r / min, and the modified kaolinite powder is obtained for later use. Finally, add 2 parts of compatibilizer GMA, 0.5 parts of citric acid, 16.5 parts of modified kaolinite powder and dry PBAT and PLA, add them to a high-speed mixer and mix them evenly, then add them to a twin-screw extruder for melt blending and extrusion Stretch, pelletize, use three-layer co-extrusion blown film machine to blow mold film products, and get fully degradable cushioning packaging bags through bag making, cutting, inflation, heat sealing and packaging.

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Abstract

The invention discloses a full-degradable cushion packaging bag and a preparation method thereof. The packaging bag comprises the following raw material components in parts by mass: 40-70 parts of PBAT (Poly(butyleneadipate-co-terephthalate)), 5-20 parts of PLA (Polylactic Acid), 5-20 parts of PPC (Chlorinated Polypropylene), 0-2 parts of a compatilizer, 0-1 part of a plasticizer, 0-20 parts of alayered inorganic filler and 0-3 parts of a performance additive. The preparation method comprises the following steps: drying raw materials; modifying the layered inorganic filler; fully and uniformly mixing the PBAT, PLA, PPC, the compatilizer and the modified layered inorganic filler; adding the mixed materials into a twin-screw extruder for performing melt blending extrusion and drawing, dicing to obtain a granular blended material; and performing blow molding through a three-layer co-extrusion film blowing machine, thereby obtaining the thin film product. The full-degradable cushion packaging bag disclosed by the invention has excellent mechanical property and barrier property, and is high in oxygen permeability and fully degradable. The full-degradable cushion packaging bag is a goodsubstitute of an existing non-degradable cushion packaging bag and is worthy of popularization and application.

Description

technical field [0001] The invention relates to the field of degradable cushioning packaging bags used in logistics, express delivery and other industries, in particular to a fully degradable cushioning packaging bag. Background technique [0002] Under the premise of the rapid development of e-commerce economy, plastic cushioning packaging materials are widely used in people's daily life due to their advantages of cheap price and convenient use. However, traditional plastic cushioning packaging materials (such as polyethylene, polypropylene and polyamide, etc.) have caused great "white pollution" to the environment. With the sustainable development of society, people's demand for low-carbon economic development is increasingly urgent, and the development of fully degradable cushioning packaging materials has become an inevitable trend. At the same time, research and development of fully degradable cushioning bubble or air column packaging bags can effectively Solve the pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08L67/04C08K13/06C08K9/04C08K9/06C08K3/34B29B9/06B29C47/92B29C55/28B29C48/92
Inventor 孟庆阳丁正方磊张立斌
Owner WUHAN HUALI BIOLOGY CO LTD
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