Compostable degradable plastic packaging box and preparation method thereof
By using fully biodegradable PHA, PBAT, PBS and plant fiber to prepare packaging boxes, the environmental pollution caused by the non-degradable existing plastic lunch boxes is solved, and the complete degradation of the packaging boxes and the degraded organic matter utilization are achieved, thereby improving the degradation efficiency.
CN119708795APending Publication Date: 2025-03-28SUZHOU H & FINE PLASTIC CO LTD
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Patent Information
- Application Number
- CN202411946936.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-27
- Publication Date
- 2025-03-28
AI Technical Summary
Technical Problem
Existing plastic lunch boxes are non-degradable, resulting in environmental pollution. The existing degradation technology cannot completely solve the problem of plastic waste pollution.
Method used
The packaging box is prepared using completely biodegradable PHA, PBAT, PBS and plant fibers. Through specific component ratios and preparation methods, the packaging box has excellent degradation and mechanical properties.
Benefits of technology
Complete degradation of packaging boxes is achieved, which reduces the harm to the natural environment. The degraded waste can be used as fertilizer, improving the degradation efficiency.
✦ Generated by Eureka AI based on patent content.
Abstract
The invention provides a compostable and degradable plastic packaging box, which is prepared from the following ingredients in parts by mass: 60 to 70 parts of PHA (Polyhydroxyalkanoate), 10 to 20 parts of PBAT (Poly (Butyleneadipate-co-Terephthalate) or PBS (Phosphate Buffer Solution), 15 to 25 parts of fillers, 0.3 to 0.4 part of antioxidants, 0.3 to 0.4 part of white oil, 0.2 to 0.4 part of hydrolysis-resistant stabilizers, 0.2 to 0.4 part of heat stabilizers and 30 to 40 parts of plant fibers. The invention further provides a preparation method of the plastic packaging box capable of being composted and degraded. The packaging box is produced from PHA, PBAT, PBS and plant fibers which are completely biodegradable, and the packaging box not only has excellent complete degradation performance, but also has excellent mechanical properties and processability.
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