How to improve the durability and functionality of Biodegradable Film & bag?

To improve the durability and functionality of Biodegradable Film and Bag, you can start from the following aspects:
1. Material selection and optimization
Increase material strength:
Choose high-strength degradable materials, such as PLA (polylactic acid), which have good mechanical properties and biodegradability.
Through blending modification, composite reinforcement, etc., the tensile strength, tear strength and wear resistance of the material can be improved. For example, blending PLA with other degradable materials (such as PBS, PHA, etc.) or compounding it with nanomaterials (such as nanocellulose, nanoclay, etc.) can significantly improve the mechanical properties of the material.
Adjust material recipe:
According to the specific application scenario, the material formula is adjusted, such as adding plasticizers, tougheners, antioxidants and other additives to improve the material's processing performance and usability.
Control key parameters such as crystallinity and molecular weight distribution of materials to optimize the physical properties and degradation properties of materials.
2. Improvement of production process
Optimizing the film blowing process:
Advanced blow molding technology and equipment are used to ensure the uniformity and thickness consistency of the film and reduce defects such as bubbles and fish eyes.
Adjust process parameters such as blow molding temperature and stretch ratio to make the film have better mechanical and optical properties.
Improve heat sealing strength:
Choose degradable materials with good heat sealing performance, or improve the heat sealing strength of the film by adding heat sealing additives, improving the structure of the heat sealing layer, etc.
Optimize heat sealing process parameters, such as heat sealing temperature, pressure and time, to ensure that the heat sealing part is firm and reliable.
3. Functional addition
Enhanced waterproof and anti-fouling properties:
Coat the surface of the degradable membrane with a waterproof and antifouling agent, or use nanotechnology to build a micro-nano structure to improve the waterproof and antifouling properties of the film.
Nanomaterials with self-cleaning functions are selected as additives to make the film surface easy to clean and maintain.
Added antibacterial ingredients:
Add natural or synthetic antibacterial agents, such as nanosilver, chitosan, etc., to the degradable film to give the film antibacterial properties and extend the shelf life of the food in the package.
Use antibacterial materials with slow-release function to ensure long-lasting and effective antibacterial effects.
4. Mechanical performance and durability testing
Conduct rigorous mechanical performance testing:
Conduct mechanical performance tests such as stretch, tear, and abrasion resistance on degradable films and bags to ensure that the products meet usage requirements.
Advanced testing equipment and methods, such as texture analyzers, are used to accurately measure and analyze the mechanical properties of materials.
Environmental suitability test:
Simulate usage scenarios under different environmental conditions (such as high temperature, low temperature, humidity, etc.), conduct environmental adaptability tests on degradable films and bags, and evaluate their durability and stability.
5. Design and application innovation
Innovative structural design:
According to the specific application scenarios and needs, reasonable film and bag structures are designed, such as handle design, self-sealing design, etc., to improve the convenience and practicality of the product.
Expand application areas:
Explore the wide application of degradable films and bags in food packaging, agricultural coverage, medical supplies, environmentally friendly shopping bags and other fields, and promote the industrialization process of degradable materials.
Improving the durability and functionality of Biodegradable Film & Bag requires starting from many aspects such as material selection and optimization, production process improvement, functional addition, mechanical performance and durability testing, and design and application innovation.