
Adhesiveless Polyimide
Adhesiveless polyimide is a kind of polyimide film with self-adhesive properties. It can be used for bonding and sealing without the need for external adhesives. This type of film is mainly used in high-temperature, high-pressure and corrosive environments, and is widely used in the aerospace,...
Description
Adhesiveless polyimide is a kind of polyimide film with self-adhesive properties. It can be used for bonding and sealing without the need for external adhesives. This type of film is mainly used in high-temperature, high-pressure and corrosive environments, and is widely used in the aerospace, automotive, electronic, chemical and other industries.
The adhesiveless polyimide film is made of a polyimide resin as the main material, and its structure is similar to that of general polyimide film. However, it has good self-adhesive properties and can be used for bonding and sealing without the need for external adhesives. This type of film has good chemical resistance, high temperature resistance, electrical insulation performance and mechanical properties, and can work normally in a wide range of temperature and humidity conditions.
The production process of adhesiveless polyimide film is relatively complex. It needs to undergo a series of chemical reactions to form a polymer with a high molecular weight, which needs to use high-purity raw materials,严格 control reaction conditions and processing parameters. In addition, the film needs to undergo special surface treatment to improve its self-adhesive properties.
The adhesiveless polyimide film has good bonding strength and sealing performance, and can be used for bonding and sealing various materials such as metal, plastic, glass, ceramic, fiber and rubber. In addition, it has good chemical resistance, high temperature resistance, electrical insulation performance and mechanical properties, so it is widely used in the aerospace, automotive, electronic, chemical and other industries.
In general, adhesiveless polyimide film is an important functional material with high application value and market prospects. With the continuous development of technology and the continuous improvement of product quality, its application scope will be further expanded in the future.
FAQ
1.Q: Are you trading company or manufacturer ?
A: We are a manufacturer, We have more than 36 years experience in producing electrical insulation material.
2.Q: Where is your factory located? How can I visit there?
A: Our factory is located in Xuchang,Henan provience.
3.Q: Which certification do you have?
A: The plant has passed the certificate of ISO 9001 quality system certification;
The products have passed ROHS test.
4.Q: Can i get a samples for free?
A: Of course we can sent you a sample for free, customers just need to pay a litter shipping change.
5.Q: How long is the delivery time?
A: Generally it is 5-15 days if polyimide film price is in stock, or it is 15-30 days.
| Item | Unit | Value | |||||||||
| Nominal thickness | um | 25 | 40 | 50 | 75 | 100 | 125 | 150 | 175 | 250 | |
| Thickness tolerance | um | 4 | 4 | 7 | 8 | 7 | 11 | 11 | 12 | 15 | |
| -3 | -4 | -6 | -6 | -7 | -7 | -7 | -8 | -10 | |||
| Tensile strength | um | 165 | 165 | 165 | 165 | 165 | 165 | 160 | 155 | 150 | |
| Breaking elongation | % | 40 | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 | |
| AC electric strength(48Hz-62Hz) | V/um | 235 | 200 | 195 | 175 | 145 | 120 | 115 | 100 | 90 | |
| Range | mm | Allowable deviation | |||||||||
| Cutting Width | <26 | ±0.4 | |||||||||
| 26~102 | ±0.8 | ||||||||||
| >102 | ±1.6 | ||||||||||
| Density | kg/m3 | 1425±10 | |||||||||
| Melting point | — | Don't melt | |||||||||
| Relative permittivity | 50Hz | — | 3.5±0.4 | ||||||||
| 23℃ | 1KHz | 3.4±0.4 | |||||||||
| Dielectric loss factor 23℃, | — | ≤4.0×10-3 | |||||||||
| 50Hz or 1Hz | |||||||||||
| Volume resistively | Ω·m | ≥1.0×1010 | |||||||||
| Surface resistivity | Ω | ≥1.0×1014 | |||||||||
| Dimensional stability (shrinkage rate in vertical and horizontal directions) (only required for thickness ≥25μm) | 150℃ | % | ≤0.35 | ||||||||
| 400℃ | ≤2.5 | ||||||||||
| Water absorption (damp for 24h) | % | ≤4.0 | |||||||||
| Long term heat resistance | ℃ | ≥200 | |||||||||
| Shelf life and conditions | Year | Store at room temperature, two years from the date of delivery. If it exceeds the storage period, it can still be used normally after passing the inspection. Keep away from heat sources, strong acids and alkalis, and avoid long-term ultraviolet light exposure. | |||||||||
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