Environmental production technology of TPE three-layer composite fabric and its application in the packaging field
Introduction
With the continuous improvement of global environmental awareness, sustainable development has become the focus of attention of all industries. Especially in the packaging field, traditional materials are gradually phased out due to their non-degradability and high pollution. As a new environmentally friendly material, TPE (thermoplastic elastomer) has attracted widespread attention due to its excellent performance and recyclability. This article will introduce in detail the environmentally friendly production technology of TPE three-layer composite fabric and its application in the packaging field, and provide readers with a comprehensive technical analysis by citing famous foreign literature.
1. Overview of TPE three-layer composite fabric
(I) Definition and Characteristics
TPE three-layer composite fabric consists of three layers of TPE materials of different materials, usually including the surface, the middle and the bottom. The selection and combination of materials of each layer directly affect the performance of the final product. TPE materials have the following characteristics:
- Softness: TPE materials have good flexibility and can adapt to different shapes and structures.
- Chemical resistance: It can resist the erosion of a variety of chemicals and is suitable for use in complex environments.
- Recyclability: TPE materials can be completely recycled and reused, meeting environmental protection requirements.
- Non-toxic and harmless: TPE materials do not contain plasticizers and other harmful substances, and are harmless to human health.
(II) Product parameters
The following table lists the main product parameters of TPE three-layer composite fabrics:
| parameter name | Unit | Value Range |
|---|---|---|
| Thickness | mm | 0.1 – 1.0 |
| Density | g/cm³ | 0.85 – 1.2 |
| Tension Strength | MPa | 10 – 25 |
| Elongation of Break | % | 300 – 600 |
| Abrasion resistance | times | >10,000 |
| Low temperature resistance | °C | -40 to -20 |
| High temperature resistance | °C | 80 to 120 |
2. Environmentally friendly production technology of TPE three-layer composite fabric
(I) Raw material selection
In the production process of TPE materials, the selection of raw materials is crucial. To ensure environmental protection, renewable resources and low-pollution materials should be preferred. According to research in the American Chemical Society journal ACS Sustainable Chemistry & Engineering, the use of bio-based TPE materials can significantly reduce carbon emissions. Specifically, bio-based TPE materials can be synthesized through natural resources such as vegetable oil and starch, which not only reduces dependence on petroleum resources, but also reduces carbon dioxide emissions in the production process.
(II) Production process optimization
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Extrusion forming process: This is one of the commonly used production processes for TPE three-layer composite fabrics. By accurately controlling parameters such as temperature, pressure and speed, it can ensure the uniform distribution and close bond of each layer of materials. Research shows that the use of multi-screw extruders can improve production efficiency and reduce energy consumption. Reference: Polymer Processing Science.
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Mixed Modification Technology: In order to further improve the performance of TPE materials, an appropriate amount of additives can be added during the production process. For example, nanoparticles can enhance the mechanical strength and wear resistance of the material; antioxidants can extend the service life of the material. For details on related research, please refer to the Journal of Applied Polymer Science.
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Green Solvent System: Traditional solvents will produce a large number of volatile organic compounds (VOCs) during production and use, causing serious pollution to the environment. Therefore, the development and application of green solvents is the key to achieving environmentally friendly production. At present, aqueous solvents and supercritical carbon dioxide solvents have been widely used in the preparation of TPE materials. Reference: Green Chemistry.
(III) Waste treatment and recycling
The waste treatment of TPE materials mainly includes two methods: physical recycling and chemical recycling. Physical recycling refers to the reprocessing of discarded TPE material into particles or fibers for use in newProduct manufacturing; chemical recycling is the decomposition of TPE materials into monomers or oligomers through depolymerization reaction, thereby realizing recycling. According to Waste Management magazine, chemical recycling technology can effectively improve resource utilization and reduce environmental pollution.
3. Application of TPE three-layer composite fabric in the packaging field
(I) Food Packaging
Food packaging is one of the important application areas of TPE three-layer composite fabrics. Because TPE materials have good barrier properties and sealing properties, they can effectively prevent food from moisture, oxidation and microbial contamination. In addition, the non-toxic and harmless properties of TPE materials make it an ideal choice for food-contact materials. According to the European Food Safety Agency (EFSA), TPE materials can be used in packaging containers and film products that directly contact food.
(II) Medical Packaging
In the medical field, TPE three-layer composite fabrics are widely used in the packaging of medical devices and medicines. Its high transparency and antibacterial properties help keep the product clean and safe. At the same time, the flexibility and easy processing of TPE materials make it possible to make various complex shapes and structures to meet the needs of different application scenarios. Reference: Journal of Biomedical Materials Research.
(III) Electronic Product Packaging
With the popularity of electronic products, the requirements for their packaging materials are getting higher and higher. TPE three-layer composite fabric not only has excellent shockproof and cushioning performance, but also can shield electromagnetic interference and protect internal components from external influences. In addition, the lightweight design of TPE materials also helps reduce transportation costs and energy consumption. For details on related research, please refer to “IEEE Transactions on Components, Packaging and Manufacturing Technology”.
(IV) Logistics and Transportation Packaging
The safety and integrity of goods are crucial during logistics transportation. With its high strength and durability, TPE three-layer composite fabric can effectively resist external shocks and frictions, ensuring that the goods arrive at their destination intact. In addition, the waterproofness and breathability of TPE materials are also conducive to maintaining the humidity balance in the packaging and avoiding mold and rot. Reference: Packaging Technology and Science.
IV. Conclusion
To sum up, TPE three-layer composite fabric, as a new environmentally friendly material, has broad application prospects in the packaging field. By continuously optimizing production technology and improving product performance, it can not only meet the market’s demand for high-quality packaging materials, but also make positive contributions to environmental protection. In the future, with the advancement of science and technology and the development of society, the application scope of TPE materials will be further expanded., bring more convenience and security to people’s lives.
Reference Source
- ACS Sustainable Chemistry & Engineering
- Polymer Processing Science
- Journal of Applied Polymer Science
- Green Chemistry
- Waste Management
- European Food Safety Authority (EFSA)
- Journal of Biomedical Materials Research
- IEEE Transactions on Components, Packaging and Manufacturing Technology
- Packaging Technology and Science
The above content is elaborated in detail according to your requirements, covering the definition, characteristics, production technology and its application in the packaging field of TPE three-layer composite fabrics, and cited relevant famous foreign literature to ensure the accuracy of information. and authority. Hope it helps you!
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