Insulation Film
Your Professional Insulation Film Supplier
Hangzhou Weshare Import & Export Co.,Ltd. is a leading Chinese manufacturer and exporter of transformer components, electrical insulation materials and consulting company. Weshare founded in 2005 by one specialized sales in transformer accessories. Most of our products are used in oil and dry transformers, electrical motors, generators and electronic products.Our mission is to ensure appropriate product quality while satisfying the needs of our customers is our prime objective and represents the core principle of our business activities.
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Why Choose Us
Quality Assurance
Certified by UL, SGS, and ISO9001, Weshare upholds stringent quality standards.
Extensive Experience
Weshare, since 2005, excels in transformer accessories and electrical engineering.
Export markets
With a strong focus on export markets, we have successfully captured significant market share in East Asia, North Europe, the Middle East, South America, Egypt, and East Africa. Our dedication to ensuring appropriate product quality while meeting customer needs is the cornerstone of our business philosophy.
Product Application
Our company boasts a wide array of products used in oil and dry transformers, electrical motors, generators, and electronic devices.
Advantages of Polyimide Film
Exceptional Heat Resistance
It works well in very hot or freezing places.
01
Durability
This film is strong and lasts a long time.
02
Chemical Resistance
It can handle strong acids and solvents without damage.
03
Flexibility
It bends easily, making it great for flexible electronics.
04
Tip
Use polyimide film if your project needs heat or chemical resistance.
05
Product Paramenters
|
Item |
H Type Film |
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|
Appearance |
Transparent or semi-transparent golden film with smooth and flat surface and without any needle cavities, bubbles or electrically conductive impurities. |
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|
Thickness Nominal(μm) |
20.0 |
25.0 |
30.0 |
40.0 |
50.0 |
75.0 |
100.0 |
125.0 |
150.0 |
175.0 |
|
Thickness Tolerance(μm) |
±3.0 |
±3.0 |
±3.0 |
±4.0 |
±5.0 |
±7.5 |
±10 |
±12.5 |
±15.0 |
±17.5 |
|
Width(mm) |
6~ 1040 |
6~1000 |
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Length (m) |
1000+5 |
500+5 |
300+5 |
200+5 |
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Tensile Strength Mpa ≥ |
140 |
120 |
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|
Elongation at Rupture % ≥ |
40 |
60 |
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|
Dielectric Strength MV/m ≥ |
150 |
120 |
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Surface Resistivity ≥ |
1.0×1013 |
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|
Volume Resistivity Ω.cm ≥ |
1.0×1015 |
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|
Dielectric Constant(106H) |
3～4 |
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|
Dielectric Tangent(106H)≤ |
1.0×10-3 |
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General-purpose polyimide film
General-purpose polyimide film is the most common type of polyimide film and is widely used in industrial fields. Its main feature is high heat resistance.
Ultra-high heat-resistant polyimide film
Ultra-high heat-resistant polyimide film is a film with higher heat resistance than general-purpose polyimide film. Their heat resistance temperature is generally above 300℃, and they are widely used in harsh industrial fields and aerospace industries that need to be used in high-temperature environments.
Transparent polyimide film
Transparent polyimide film has the same characteristics as ordinary polyimide film, but is also transparent. Ordinary polyimide film is generally opaque, while transparent polyimide film becomes transparent through special processing.
Adhesive polyimide film
Adhesive-backed polyimide film is a polyimide film with an adhesive on one side. This makes it easy to apply and is particularly useful for assembling and protecting electronic devices and electrical components.
Tips For Proper Handling And Storage Of Polyimide Films
Polyimide films are an essential component in a wide range of industries, including electronics, aerospace, and automotive. These versatile films are known for their high thermal stability, excellent mechanical properties, and superior chemical resistance, making them ideal for a variety of applications. However, in order to ensure optimal performance and longevity, it is crucial to handle and store polyimide films properly. In this article, we will provide some useful tips for proper handling and storage of polyimide films.
When it comes to handling polyimide films, it is important to take precautions to prevent damage or contamination. One of the most common issues that can arise during handling is the introduction of foreign particles onto the film surface. To avoid this, it is recommended to use clean, lint-free gloves when handling polyimide films. Additionally, it is important to handle the films with care to avoid creasing or tearing. When cutting or manipulating the films, be sure to use sharp, clean tools to minimize the risk of damage.
Proper storage is also crucial for maintaining the quality of polyimide films. Exposure to sunlight, heat, moisture, or chemicals can degrade the performance of the films over time. Therefore, it is best to store polyimide films in a cool, dry, and dark environment. Ideally, the films should be stored in their original packaging or in a sealed container to protect them from dust and contaminants. It is also important to store the films in a vertical position to prevent bending or warping.
It is also recommended to keep an inventory of the polyimide films in order to track their usage and shelf life. This can help you ensure that the films are used in a timely manner and that older films are not inadvertently used in critical applications. When storing polyimide films, it is important to follow the manufacturer's recommendations for temperature and humidity conditions. Some films may require special storage conditions to maintain their optimal properties.
In addition to proper handling and storage, it is also important to consider the selection of the right polyimide film for your specific needs. When choosing a polyimide film, consider factors such as the desired thickness, thermal properties, dielectric strength, and chemical resistance. It is important to select a film that meets the specific requirements of your application to ensure optimal performance and reliability.
Proper handling and storage of polyimide films are essential to maintaining their performance and longevity. By following the tips outlined in this article, you can ensure that your polyimide films remain in top condition and continue to meet your needs for years to come. Remember to handle the films with care, store them in a suitable environment, and select the right film for your specific application. With proper care and attention, polyimide films can provide reliable and durable performance in a variety of applications.
Key Applications of Polyimide Film
Flexible Electronics
Polyimide films are used as substrates in flexible printed circuits, where they provide a robust yet flexible base that withstands bending and folding without losing functionality. For example, in a laptop computer, the cable that connects the main logic board to the display (which must flex every time the laptop is opened or closed) is often a polyimide base with copper conductors.
Aerospace
In aerospace design, every gram counts. Due to their lightweight nature and high resistance to temperature and radiation, polyimide films are used in space and air craft insulation and various aerospace components. Multi-layer insulation used on spacecraft is usually made of polyimide coated with thin layers of aluminum, silver, gold, or germanium.
Automotive
In the automotive industry, these films are integral to high-temperature insulating tapes, pressure-sensitive tapes, and gaskets. Polyimide film is utilised in the manufacturing of sensors that monitor various parameters in vehicles, including temperature and pressure.
FAQ
As one of the leading insulation film suppliers in China, we warmly welcome you to wholesale high-grade insulation film made in China here from our factory. All our products are with high quality and competitive price.