Polyimide sheet is a sheet product made from polyimide (PI). It is often mentioned alongside other polyimide products, such as PI rods, in related material classifications. As one of the key polyimide forms, it inherits the core properties of PI and is a common product form in the industrial field for specific application requirements (such as those requiring high-temperature resistance and insulation properties).
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Features & Advantages of PI
Ultra-high temperature polyimide (PI) polymer characteristics and advantages
UL certified for long-term use at 260℃; maintains strength even at 300℃.
Excellent durability under high temp, heavy load and corrosive conditions.
Low friction — works oil-free and in oil, water, steam, mild acids/alkalis.
Insoluble in common solvents; resists organic and inorganic chemicals.
Superior mechanical strength, rigidity and surface hardness.
Supports injection molding, machining, bonding and ultrasonic welding.
Works for thousands of hours in steam above 250℃ or pressurized water.
UL94 V-0 at 1.45 mm thickness without additives.
Produces very low smoke and toxic gases when burned.
Stable electrical performance across wide temp/frequency ranges.
Retains mechanical properties under high-dose gamma radiation.
Excellent dimensional stability under demanding conditions.
PI Properties Table
Ultra-high temperature polyimide (PI) polymer performance table
| Test Item | Test Standard | Unit | JHPI-10 | JHPI-10-21 | JHPI-10-22 | JHPI-HT | JHPI-YS | JSJHTPI-01 | JSJHTPI-02 |
| Density | ISO 1183 | g/cm3 | 1.40 | 1.43 | 1.7 | 1.4 | 1.36 | 1.32 | 1.36 |
| Tensile Strength | ISO 527 | Mpa | 96 | 90 | 60 | 92 | 121 | 90 | 97 |
| Elongation at Break | ISO 527 | % | 10 | 5 | 2.5 | 8 | 13 | 8 | 8 |
| Flexural Strength | ISO 178 | Mpa | 148 | 126 | 90 | 140 | 171 | 130 | 138 |
| Charpy Impact Strength | ISO 179 | MPa | 90 | 135 | 13 | 88 | No Break | 100 | No Break |
| Heat Deflection Temperature | ISO 75-1/-2 | ℃ | 300 | 300 | 300 | 320 | 255 | 230 | 250 |
| Continuous Service Temp. | UL746B | ℃ | 350 | 350 | 350 | 380 | 250 | 250 | 250 |
High-Performance Polyimide (PI) Solutions
Discover the versatile applications of high-temperature polyimide (PI) polymer, a material engineered for extreme environments and superior performance.
Key Characteristics & Applications
High-temperature polyimide is a high-performance polymer widely used across various industries, including automotive, semiconductors, electronics, and more. Its exceptional properties make it a go-to material for demanding applications.
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Low friction and wear-resistant components under high speed and pressure.
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Excellent creep or plastic deformation resistance.
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Superb self-lubricating or oil-lubricating properties.
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Liquid sealing components for high-temperature and high-pressure environments.
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High bending, tensile, and impact strength.
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Corrosion, radiation, and rust-resistant components.
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Components for long-term use at temperatures above 300°C, with short-term resistance up to 400-450°C.
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High-temperature structural adhesives for extreme conditions.
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Microelectronics applications including stress-buffering coatings and dielectric films.
Typical Products
- Mold hot runner insulation plates and rings
- Piston rings, valve seats
- Chip test sockets
- Copier separation claws
- Laser imprinting rollers
- Semiconductor chip nozzles
- Semiconductor industry fixtures and jigs
- Gas chromatography seals
- Rolling, sliding, and thrust washers
- Plasma torch vortex rings
- Gears, Automotive engine gaskets
- Glass industry brackets
- Microwave components
Application Industries
- Aerospace
- Medical devices
- Analytical and testing equipment
- Petrochemicals
- Gears and seals
- Electronics, Semiconductors, Photovoltaics, FPD
- Food processing, packaging, and beverage filling
- New energy vehicles
- Textile printing and dyeing machinery
- Composites
- General machinery