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Conductive Polyimide Thin Film membrane Sensor Base Material for Automotive
| MOQ: | Negotiation |
| Price: | $300-$30000 |
| Standard Packaging: | Standard Packing |
| Delivery Period: | Negotiation |
| Payment Method: | L/C,T/T |
| Supply Capacity: | Negotiation |
Detail Information
Place of Origin
China
Brand Name
Guofeng
Certification
UL ISO ROHS
Model Number
7.5um
Chemical Resistance:
Excellent
Surface:
Smooth
Application:
Electronics, Aerospace, Automotive
Color:
Amber
Material:
Polyimide
Adhesive Type:
Silicone
Highlight:
Automotive Polyimide Thin Film
,Sensor Base Polyimide Thin Film
,polyimide membrane Material
Product Description
The Thin-Film Sensor Base Material: Conductive Polyimide for Harsh Operating Conditions is a cutting-edge foundational material crafted to meet the rigorous demands of thin-film sensor systems operating in challenging environments. It integrates the inherent robustness of polyimide with enhanced conductive properties, serving as a reliable support and functional layer that ensures thin-film sensors maintain accurate performance even when exposed to extreme temperatures, chemical corrosion, or mechanical stress. This material addresses the critical gap in traditional sensor substrates, which often fail to balance conductivity, durability, and environmental resilience—making it a vital solution for industries requiring high-precision sensing in harsh settings.
1. Core Product Characteristics
1.1 Stable Electrical Conductivity
This conductive polyimide base material boasts consistent surface resistivity ranging from 10³ to 10⁶ Ω/sq (customizable based on application needs), ensuring reliable electrical signal transmission for thin-film sensors. Unlike conventional conductive substrates that suffer from conductivity degradation under temperature fluctuations, it maintains >90% of its initial conductivity when exposed to temperatures ranging from -196°C to 300°C. This stability prevents signal loss or distortion, a key requirement for sensors in high-temperature industrial processes or cryogenic research.
1.2 Exceptional Resistance to Harsh Environments
Engineered for durability, the material exhibits outstanding chemical resistance—it remains unaffected by exposure to strong acids (e.g., 5% H₂SO₄), alkalis (e.g., 10% NaOH), and organic solvents (e.g., ethanol) for up to 1000 hours without surface degradation or conductivity loss. Additionally, it offers excellent anti-oxidation and anti-humidity performance: after 5000 hours of exposure to 85°C/85% relative humidity (RH), there is no measurable corrosion, delamination, or change in mechanical properties—critical for sensors in marine, offshore, or chemical processing environments.
1.3 Robust Mechanical Performance
The conductive polyimide base material retains the mechanical strength of traditional polyimide, with a tensile strength of >150 MPa and elongation at break of >40%. It also demonstrates superior wear resistance, with a Taber abrasion loss of <0.01 g after 1000 cycles (CS-10 wheel, 500 g load), ensuring longevity even in high-vibration or friction-prone applications (e.g., automotive engine sensors, industrial machinery monitors). Furthermore, its thin profile (standard thickness: 25–125 μm) allows for seamless integration with thin-film sensor fabrication processes, such as sputtering or vapor deposition, without adding excessive bulk.
1.4 Compatibility with Thin-Film Fabrication
Designed to support thin-film sensor manufacturing, the material features a smooth surface finish (Ra < 0.1 μm) that enables uniform deposition of sensor layers (e.g., metal oxides, semiconductors) with strong adhesion. It can withstand the high temperatures and vacuum conditions of thin-film deposition processes (up to 350°C for short durations) without warping or dimensional change. Additionally, it is compatible with standard patterning techniques (e.g., photolithography, laser etching), allowing for precise customization of sensor geometries—from microscale sensing elements to large-area arrays.
2. Key Application Fields
2.1 Industrial Process Monitoring
In high-temperature industrial processes (e.g., steel smelting, glass manufacturing), this conductive polyimide base material serves as the substrate for thin-film temperature, pressure, and gas sensors. For example, in a steel mill, sensors built on this material can withstand 280°C temperatures and molten metal splashes, providing real-time data on furnace conditions to optimize production efficiency and prevent equipment failure. Its chemical resistance also makes it ideal for sensors in chemical reactors, where it monitors pH levels or toxic gas concentrations without being damaged by corrosive process fluids.
2.2 Aerospace & Automotive
In the aerospace industry, the material is used for thin-film sensors in aircraft engines and spacecraft components. For instance, sensors mounted on jet engine turbine blades (using this conductive polyimide substrate) monitor vibration, temperature, and stress levels under extreme heat (up to 280°C) and high-speed airflow, ensuring engine safety and reducing maintenance costs. In automotive applications, it supports thin-film sensors in exhaust systems (resisting high temperatures and exhaust gas corrosion) and battery management systems (BMS) for electric vehicles (EVs)—where its humidity resistance prevents sensor failure in battery enclosures.
2.3 Environmental & Marine Sensing
For environmental monitoring (e.g., air quality sensors, soil moisture detectors) in harsh outdoor conditions, the material’s anti-humidity and anti-oxidation properties ensure long-term reliability. In marine or offshore settings, it serves as the base for thin-film salinity, pressure, and corrosion sensors—withstanding saltwater immersion and marine atmospheric corrosion for up to 5 years. These sensors provide critical data for oceanographic research, offshore oil drilling safety, and coastal erosion monitoring.
2.4 Medical & Scientific Research
In medical and scientific applications, the material is used for thin-film sensors in cryogenic research (e.g., monitoring temperatures in liquid nitrogen storage) and high-temperature sterilization processes (e.g., autoclave-compatible sensors for medical equipment). Its biocompatibility (compliant with ISO 10993-5) also makes it suitable for implantable or wearable medical sensors—such as glucose monitors or vital sign trackers—that need to withstand body fluids and temperature variations without causing adverse reactions.
3. Compliance & Customization
The Thin-Film Sensor Base Material: Conductive Polyimide for Harsh Operating Conditions adheres to international standards, including ISO 10365-2 (polyimide films for electrical applications) and ASTM D882 (tensile properties of thin plastic sheeting). It is available in standard sheet sizes (300×300 mm to 1000×1000 mm) and roll formats (width: 300–1500 mm, length: 100–500 m). Customization options include tailored surface resistivity, thickness, and additional coatings (e.g., anti-reflective layers for optical sensors, hydrophobic coatings for high-humidity environments) to meet specific application requirements. It also undergoes rigorous quality testing—including conductivity measurement, environmental exposure trials, and mechanical strength assessments—to ensure consistency and performance.
Product pictures
Handling & Storage Instructions
To ensure the longevity and performance of our Polyimide film, please adhere to the following guidelines:
- Shelf Life: 6 months from the date of manufacture.
- Storage Conditions:
· Store in a cool, dry place away from direct sunlight will be necessary.
· Avoid exposure to high humidity or extreme temperature fluctuations.
Tags:
Polyimide film
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