In the modern packaging industry, choosing the appropriate packaging materials is crucial.PET aluminum plated filmAs a high-performance packaging material, it stands out among many materials due to its unique properties. This article will provide a detailed comparison of the performance of PET aluminum coated film with several other common packaging materials, and explain it through data comparison and experimental data.
1、 Basic properties of PET aluminum coated film
PET aluminum plated filmIt is made of polyethylene terephthalate (PET) as the substrate, and a layer of aluminum is formed on its surface through vacuum aluminum plating technology. This material not only has the high strength, high modulus, high temperature resistance, weather resistance, and chemical resistance of PET substrate, but also enhances its oxygen resistance, moisture resistance, and UV resistance through aluminum coating.
- Mechanical properties:
- Tensile strength: Longitudinal ≥ 130 MPa, transverse ≥ 130 MPa
- Fracture elongation: 90% -140%
- Temperature range for use: -70 ℃ to 150 ℃
- Barrier performance:
- Water vapor permeability: ≤ 8 g/m²·24hr
- Oxygen permeability: ≤ 100 cm³/m²·24h·0.1MPa
- Aluminum plating layer performance:
- Aluminum plating thickness: generally 0.02-0.06 μ m
- Uniformity of aluminum plating layer: Measure 10 points within 120m longitudinally, with a thickness error of less than 10%; Horizontally measure 18 points with an error of less than 5%
2、 Comparison with other packaging materials
1. PE aluminum plated film
PE (polyethylene) aluminum plated filmUsing PE as the base material, the aluminum layer is attached to the PE film through hot pressing or adhesive bonding.
- Material characteristics: PE aluminum plated film has good flexibility, water resistance, and chemical corrosion resistance, but its high temperature resistance is relatively weak.
- Usage: Commonly used for packaging lightweight and moisture resistant products, such as food, textiles, etc.
- Performance comparison:
- Mechanical properties: PE aluminum coated film has lower tensile strength compared to PET aluminum coated film.
- Barrier performance: PE aluminum plated film has relatively high water vapor permeability and oxygen permeability, and its barrier performance is not as good as PET aluminum plated film.
- Temperature range: The use temperature range of PE aluminum plated film is relatively narrow (-60 ℃ to 100 ℃), and it is not as heat-resistant as PET aluminum plated film.
2. BOPP (biaxially oriented polypropylene)
BOPP is a type of polypropylene film produced through a biaxial stretching process.
- Material characteristics: light weight, high glossiness, good hardness, good mechanical strength, good chemical stability, but poor solution resistance, moderate oxygen resistance.
- Usage: Commonly used as a substrate for composite films, printed as flower trays, decorative films, etc.
- Performance comparison:
- Mechanical properties: The tensile strength and elongation at break of BOPP are similar to those of PET aluminum coated film, but its heat resistance and barrier properties are not as good as PET aluminum coated film.
- Barrier performance: BOPP has lower oxygen and moisture resistance compared to PET aluminum coated film.
3. NY (polyamide film)
NY film is a thin film made of polymer compounds with many repeated amide gene groups on the main chain.
- Material characteristics: high transparency, good gloss, good printability, excellent mechanical properties, good flexibility, high pinhole resistance, good temperature resistance, and good barrier performance.
- Usage: Used for packaging materials (such as boiling, aluminum foil composite, ordinary food), electronic component integrated circuits, etc.
- Performance comparison:
- Mechanical properties: NY has higher tensile strength and elongation at break, but its overall mechanical properties are slightly lower than PET aluminum coated film.
- Barrier performance: NY has better oxygen and moisture resistance, but not as good as PET aluminum plated film.
4. CPP (Cast Polypropylene Film)
CPP is a non stretch, non oriented polypropylene film.
- Material characteristics: Light weight, good transparency, firm yet flexible, non-toxic, odorless, and tasteless, but high brittleness, not suitable for storage below 0 ℃.
- Usage: Used as an inner layer material for single-layer packaging film, composite film, etc.
- Performance comparison:
- Mechanical properties: CPP has lower tensile strength and elongation at break compared to PET aluminum coated film.
- Barrier performance: CPP has high water vapor permeability and oxygen permeability, but poor barrier performance.
3、 Advanced Institute (Shenzhen) Technology Co., Ltd.'s PET aluminum plated film products
Advanced Institute (Shenzhen) Technology Co., Ltd. is a company specializing in thermal conductive materials, shielding materialsConductive silver pasteEnterprises engaged in the research and production of high-performance materials. itsPET aluminum plated reflective filmIt has a wide range of applications in optical instruments, display screens, solar devices, and other fields.
- Product features: High reflectivity, good oxygen and moisture resistance, and excellent high temperature resistance.
- Application scenarios: Suitable for glass glaze potentiometers, thick film speed control circuits, etc.
- Experimental data:
- Aluminum plating thickness: 0.10 ± 0.03 mm
- Reflectivity: High (specific value customized according to application requirements)
- High temperature resistance: capable of long-term stable operation in high temperature environments
4、 Conclusion
By comparing common packaging materials such as PE aluminum plated film, BOPP, NY, and CPP,PET aluminum plated filmExcellent performance in mechanical properties, barrier properties, high temperature resistance, and other aspects. Especially in fields such as electronic product packaging, automotive components, aerospace, etc. that require high protective performance, PET aluminum plated film has more advantages. The PET aluminum plated reflective film of Advanced Institute (Shenzhen) Technology Co., Ltd. has become the preferred material in many fields due to its high reflectivity, good oxygen and moisture resistance, and excellent high temperature resistance.
When choosing packaging materials, the applicability of different materials should be evaluated based on specific needs and application scenarios, and PET aluminum plated film is undoubtedly a high-performance option worth considering.
The above data is for reference only, and specific performance may vary due to production processes and product specifications.
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