8011 অ্যালুমিনিয়াম ফয়েল এবং 8021 aluminum foil are both popular types of aluminum foils used for various applications, but they have some differences in their chemical composition and properties. Here’s a comparison based on key factors:

খাদ রচনা:

8011 অ্যালুমিনিয়াম ফয়েল: It is a typical alloy of the 8xxx series and contains aluminum as its primary element with small amounts of other elements like iron, সিলিকন, এবং তামা.
8021 অ্যালুমিনিয়াম ফয়েল: It also belongs to the 8xxx series and is an alloy that consists of aluminum as the primary element, with additional elements such as iron, সিলিকন, and other trace elements.

আবেদন:

8011 অ্যালুমিনিয়াম ফয়েল: This type of foil is commonly used in various packaging applications, such as for food packaging, ফার্মাসিউটিক্যাল প্যাকেজিং, and household foil.
8021 অ্যালুমিনিয়াম ফয়েল: It is specifically used for blister packaging in the pharmaceutical industry due to its excellent barrier properties against moisture, oxygen, and light.

যান্ত্রিক বৈশিষ্ট্য:

8011 অ্যালুমিনিয়াম ফয়েল: It has good mechanical properties, making it suitable for general-purpose packaging requirements.
8021 অ্যালুমিনিয়াম ফয়েল: This foil has higher tensile strength and elongation compared to 8011 ফয়েল, which is crucial for blister packaging that requires easy formation and sealing.

বাধা বৈশিষ্ট্য:

8011 অ্যালুমিনিয়াম ফয়েল: It provides a moderate barrier to moisture, আলো, এবং গ্যাস, making it suitable for standard packaging needs.
8021 অ্যালুমিনিয়াম ফয়েল: Due to its enhanced barrier properties, it is an excellent choice for pharmaceutical blister packaging, protecting drugs from external elements.

Softness:

8011 অ্যালুমিনিয়াম ফয়েল: It has a relatively softer structure, making it easy to bend and fold for various packaging applications.
8021 অ্যালুমিনিয়াম ফয়েল: This foil is slightly harder than 8011, but it remains pliable enough to be formed into blister packs without compromising the barrier properties.

খরচ:

8011 অ্যালুমিনিয়াম ফয়েল: It is generally more cost-effective compared to 8021 ফয়েল, making it preferable for cost-sensitive applications like household foil.
8021 অ্যালুমিনিয়াম ফয়েল: Being specialized for pharmaceutical blister packaging, it may be more expensive than 8011 foil due to its unique properties.