Product Name: 3M Adhesive Flexible And High Corrosion Resistance PI Electric Polyimide Heating Film
Product Description
Polyimide film type heater is a kind of sandwich structure of the translucent metal flexible electric heating piece. Also known as metal electric film, its upper and lower sides of good heat resistance, good insulation properties of the polyimide film, intermediate resistive circuit is made of special alloy foil. It because of the characteristics of temperature and resistance to chemical corrosion and widely used.I n the limited space and weight, electrothermal film exposed to vacuum, oil or chemicals such as environment, is the ideal choice for metallic electrothermal film. electrothermal film exposed to vacuum, oil or chemicals such as environment, is the ideal choice for metallic electrothermal film. Metal electrothermal film has excellent dielectric strength, excellent resistance to electric intensity and excellent heat transfer efficiency, heating element using special gold, has excellent resistance stability and electro-thermal conversion rate.. Which makes it can be widely used in heating area and be able to get fairly high temperature control precision.
2.Extremely soft, the minimum bending radius of only about 0.8mm.
3.The shape and size of flexible, especially suitable for making tiny flexible electric components.
4.Using the planar heating way, allowing the surface power density greatly. Therefore, this product series has uniform heating performance better, faster heating rate.
5.In the different area of the site can meet the requirements of different heating power and heating temperature requirements, according to the design requirements, to achieve the heating surface temperature distribution.
6.Thermal inertia of small, high precision of temperature control, speed.
7.As the insulating film protection layer with low saturated vapor pressure, low gas release, and has excellent chemical resistance, radiation resistance and antibacterial properties. Therefore, the product is suitable for thin-film heater vacuum environment, oil and most chemicals (eg, acid, chemical solvents, generally lye) contact with the environment.
8.Can be easily integrated into the thin insulation materials, providing light electric heating component with a heat insulation layer.
9.Good radiation resistance. Polyimide film 5 × 109rad dose radiation, the intensity remains 86%; certain polyimide fiber by 1 × 1010rad fast electron radiation, its strength retention rate of 90%.
10.It is self-extinguishing polymer, fuming rate.
11.A little gas in high vacuum.
12.Resistant to extremely low temperature, such as liquid helium at -60 °C will not rattle.
13.A good chemical stability and resistance to hot and humid. Polyimide materials generally insoluble in organic solvents, corrosion resistance, resistance to hydrolysis..Change the molecular structure of the design can be of different varieties. Some varieties amenable to 2, 120 °C under atmospheric pressure, 500h boiled.
14.Non-toxic, used to make cutlery and medical equipment, and withstand thousands of disinfection. Some electric film also has good biocompatibility, for example, blood compatibility test in a non-hemolytic, non-toxic in vitro cytotoxicity assays.
15.This series of product safety, reliability and long service life.
Polyimide electric heat membrane technology indicators | |
Designation | Define |
Power density | Electrothermal radiant power per unit area on the surface, unit is W/cm2. |
Normal work | When connected to the mains, its work according to the state of normal use. |
Use the temperature | Voltage Working conditions and sufficient heat, the average surface temperature. |
Temperature rise time | Surface temperature from room temperature up to a maximum 90% of the time required. |
| Performance index |
External requirements | Surface should be smooth, flat, no scratch, no brittle, no rupture, no deformation, no delamination, no pollution and so on. |
Outer shape size | The largest area 300X300mm, arbitrary shape, the deviation should not exceed 2%. |
Thick degree | 0.09~0.15mm |
Allow the power density | < 0.8 W/cm2(Decided by the cooling condition) |
Electric resistance value precision | 1%~8% Optional |
Temperature range | -269~+400°C |
Temperature uniformity | The maximum surface temperature and the minimum temperature difference between the maximum temperature should not exceed 5% °C. |
Temperature rise time | Electrically heated from room temperature to reach a steady state maximum temperature should not exceed the time 10min. |
Insulation resistance | Thermal insulation resistance and cold insulation resistance should not be less than 100MΩ. |
Electric source | AC or DC voltage. |
Installation mode | Adhesive or mechanical fixation. |
Eervice life | >10 years |
Anti-stretch performance | Electric film length and width of two directions should be able to withstand 100N tensile test and after test,, electric film should not be significantly deformed, layered phenomenon, and should be able to work properly. |
Peeling strength | Electric film electrically insulating flexible sheet material peeling force of not less than 3.0N. |
Flame retardant properties | Electric film electrically insulating layer and the heating resistor should have sufficient flame resistance. |
Tolerance to low temperature performance | At a temperature of -269 °C for 96 hours under the conditions of storage, should not be brittle, damage, deformation, delamination phenomenon, to work properly. |
Polyimide film electric heater advantage
1.Planar heating, high thermal efficiency, energy saving
Polyimide film electric heater is planar heating material, with the heated body formed to maximize the thermal conductivity, small heat transfer resistance.Ohmic heating heat can be quickly transferred to the heated body, and because of this heating good thermal conductivity, so the heating temperature is not too high,not red, glowing, radiant heat loss is very small,hence the electric membrane made of electric appliances, thermal efficiency is very high, generally around 90%. As the traditional point of heat dissipation area is small, and other objects to be heated depends on indirect conduction, the electrothermal conversion process, the heat generated by power transmitted can be heated quickly, resulting in the heat of the heating element is too concentrated, the element itself becomes hot quickly, a large part of energy into a light energy loss, resulting in electric conversion efficiency is low.
Polyimide film type electric heater can be heated for the location of the heating. You only need to put them in need to heating the surface of the parts. The light-weight structures in the electric leaf provide close thermal coupling between components and radiator. In the area of heat loss is bigger, you can even specify the configuration using higher power density heating mode.
2.Preheat fast, long life, easy to damage
For larger surface area of the polyimide film-type electric heater of the heat transfer element plates foil effect higher than the winding type heater. Therefore polyimide electrothermal film is formed between the resistive element and heat sink thermal difference is not very obvious, electric film remains relatively low temperature state. General electric heat source is always used under hot condition, so it is prone to oxidation, joint caused by open circuit. The electric film work due to a large contact surface, fast heat conduction, so its temperature is low, which improves the ohmic heating electric film material in the oxidation state of their own problems, prolongthe service life.
3.Overall optional strong, wide application
Electric membrane can be made in film, linear, can according to the need of the interception of different length and size, with wrap, paste and winding is fixed in the heated surface, the complex shape of the vessel or the work surface can be coated. The characteristics of electric heating film application range of the electrothermal film heating element is much wider than the traditional.
4.No open flame, safety and reliability
Electric film in electric conversion process does not produce fire. When the electric film heater is heated to 100 °C boiling state, the electric film does not burn paper, cotton, matches, it will not ignite in contact with. Therefore, it is suitable for some electric film heating insulation needs, but does not allow application of special places exposed to open flames.
5. Save space,reduce weight
Polyimide metal electric heating film weight usually only (0.04 q/cm2), measuring the thickness of element only (0.12mm). For areas with limited space, such as defense electronics, aerospace equipment, portable medical equipment, high-density electronic devices, polyimide film electric heater can meet your requirement.
6.Anti-corrosion, anti-radiation
Resistant to most chemicals, such as acid and solvent corrosion. Resistant to 106 rads of radiation.
7.Custom Device
Custom options can provide the perfect complete solution, significantly reducing assembly time and improve productivity. Custom configuration provides a balanced heating output performance, in order to improve the processing capacity and productivity.
Polyimide film type electric heater Application
1.Medical diagnostic equipment and analyzers.
4.Maintain stable optoelectronic components.
5.The reader, LCD, or ruggedized laptop computers and other outdoor electronic equipment can operate normally under the condition of low temperature.
6.Maintain a constant temperature analysis test equipment.
7.Car rearview mirror defroster tablets, or radar antenna snow removal, defrost heating element.
| How To Order | |||
| Catalog Heaters Chose from the tables of common sizes of Kapton in round or rectangular shapes. The heaters listed are 5 W/in2. Standard configuration includes 10" Teflon leads, exit style A or L (see page 9-7) and no mounting option. | Custom Engineered/Manufactured Heaters | ||
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Standard Flexible Specifications
| Polyimide Heater Specifications | ||
Physical Size and Construction Limitations | ||
| Maximum Size: Dimensional Tolerance: Less than 6": 6" to 12": Over 12": Nominal Thickness: Weight: Performance Ratings Maximum Operating Temperature: Minimum Operating Temperature: Physically Resistant To: Electrical Ratings Resistance: Maximum Operating Voltage: Dielectric Strength: Standard Leads: | 10" × 22" (25.4 × 56.9 cm) | |
Flexible heaters furnish fast warm-up, precise heat, and long life in virtually any shape, size, and wattage.
Flexible Kapton heaters provide highly efficient heat transfer over a wide temperature range. The thin, lightweight, and flexible design provides superior surface conformance.. extending heater life by minimizing the thermal gradient between resistive element and heat sink. In addition, flexible heaters feature low outgassing, tear resistance, and dimensional stability.
Limitless Designs
Flexible heaters are available with integral RTD's, thermocouples, or thermistors for optimum response time and gradient control. Sensors can be laminated inside a heater, adhered to the heater surface, or installed at specific locations within the system to prevent overshoot and heat fluctuations.
Factory Bonding
Proper heat-to-part installation is critical to achieving a tight bond, superior performance, and high reliability. For optimum heater performance and cost effectiveness, we can factory mount a heater to your thermal subassembly. You can supply the heat sinks or have us fabricate them to your specification, giving you a guaranteed bond, superior reliability, and the benefit of our extensive experience in bonding techniques.
Contact us today for an innovative and custom solution for your heater needs. We also offer a variety of standard sized heaters with different resistence values allowing you to test your prototypes.
Materials
Polyimide H Film
Polyimide H film is synthesized by polymerizing PMDA and ODA in strong polar solvents through
the process of film forming and imine treatment at high temperature, which possesses excellent
physical, chemical, and electrical properties; it is also radiation resistant, solvent resistant, low &
high temperature resistant, It can be applied successfully in a wide range of temperature as low
as -452F (-269c) and as high as +500F (+260c). Thanks to its unique excellent properties, it is
the ideal candidate in many applications.
FH&FHF Polymide Film
Description
The Polyimide FEP Film is a dry adhesive tape, which is made by a polyimide film coated with TeflonFEP fluoropolymer adhesive on one side(FH) or both sides (FHF) upon high-temperature baking.
Overall speaking, this film combines the excellent properties of Polyimide film and FEP(F46)
resin, and it has a unique balance of excellent electrical, thermal durability, and chemical properties over a wide range of temperatures. It resists both high and low temperatures, radiation, and
it is mechanically and electrically stable. In addition, it is self-adhesive. It also acts as a
moisture barrier which enhances the chemical corrosion resistance.
FPC polyimide Film
Description
The FPC Polyimide Film is synthesized by polymerizing an aromatic dianhhydride and an aromatic diamine. It has an excellent balance of electrical, thermal, mechanical, physical, and chemical properties over a wide temperature range (from_269℃(_452℉) to 400℃(752℉)). In particular, it is high_temperature resistant and exhibits excellent thermal stability
Polyimide Tape
Polyimide Tape,is also known as the imitation of kapton tape,is with polyimide film as the basic carrier, and coated with imported pressure sensitive silicone adhesive.It can endure
high temperature up to 260°C within half an hour, and it also features like: electrical insulation, radiation resistance, solvement resistance etc. It’s mostly applied for the motor
insulation, gold finger protection of PCB during wave soldering etc.Without any residue after the tape
is removed from the gold finger.