Polyimide Rods | PI Plastic Rod

As polyimide rod manufacturers, we have rich experience in producing and processing PI rods. We can choose unfilled and 15% graphite-filled PI rods to provide you with abundant choices. If you have any needs, please contact us!

Color:Natural amber, Black, other colors can be custmoized

PI Plastic Rod

Available sizes of Polyimide Rods

NO	size(mm)	NO	size(mm)
1	Φ2*305	14	Φ17.3*305
2	Φ3*305	15	Φ18*305
3	Φ4*305	16	Φ19.3*305
4	Φ5*305	17	Φ20*305
5	Φ6*305	18	Φ21*305
6	Φ8*305	19	Φ22*305
7	Φ10*305	20	Φ23*305
8	Φ11.3*305	21	Φ25*305
9	Φ12*305	22	Φ26*305
10	Φ13.3*305	23	Φ30*305
11	Φ14*305	24	Φ32*305
12	Φ15.3*305	25	Φ35*305
13	Φ16*305	26	Φ36*305

Applications of Polyimide Rod

Electronic and Electrical: The most common application for this PI plastic rod is the manufacture of cable insulation, printed circuit boards (PCBs), electrical motor insulation, semiconductor insulation bushings, bearings, centering pins, locating pins, screws, and fasteners.
Aerospace: PI plastic rod is used widely in a variety of aerospace applications from jet engine parts such as gaskets, bumpers, seals, and bearings due to its high temperature and chemical resistance.
Automotive: PI plastic rod are used in the manufacture of high-temperature resistant seals and insulation materials such as gaskets or piston rings in the automotive industry.

Processing of Polyimide Rod

Molding Methods: Many molding methods can be used to process PI plastic rod, including injection molding, extrusion, and hot pressing.
Cutting and machining: Conventional machining is suitable for cutting, drilling, and milling but the tools need to wear out quickly.
Bonding and Welding: PI plastic rod has to be bonded with specific adhesives, and must be welded in a way that avoids material damage due to its surface characteristics.

Polyimide Rod Disadvantages

Higher cost: However, PI plastic rod is more expensive to manufacture compared with other plastic materials.
Difficult to process: Its hardness and abrasion resistance make it unworkable using more standard equipment and techniques.
Brittleness problem: Low temperatures may reduce it to brittleness, shortening its service life.

Storage of Polyimide Plastic Rod

Environmental conditions: Since the material should not be placed in the sun or moisture, the material should not be stored in a place that stays dry and cool.
Packaging Requirements: It is recommended to pack sealed to avoid moisture absorption or contamination.
Storage Life: Polyimide has a long storage life, however, should be periodically checked on condition so that the performance of this material is not jeopardized.

Polyimide Material Data Sheet

Properties	Temperature	Test Standard	Unit	Natre-PI	Graphite-PI
Color		-	-	Brown	Black
Density		GB1033	g/cm³	1.38-1.42	1.42-1.45
Tensile Strength	23℃	GB/T1040-2006	MPa	85	89
Tensile Strength	260℃	GB/T1040-2006	MPa	49.4	54
Elongation at Break	23℃	GB/T1040-2006	%	6.3	3.7
Elongation at Break	260℃	-	-	-	-
Tensile Modulus	23℃	GB/T1040-2006	MPa	3140	4400
Tensile Modulus	260℃	GB/T1040-2006	MPa	-	-
Flexural Strength	23℃	GB/T1040-2000	MPa	110	137
Flexural Strength	260℃	GB/T1040-2000	MPa	60	99
Flexural Modulus	23℃	GB/T1040-2000	MPa	2990	4500
Flexural Modulus	260℃	GB/T1040-2000	MPa	1640	3000
Compress Strength	23℃	GB/T1040-2000	MPa	135	124
Compress Strength	260℃	GB/T1040-2000	MPa	83.8	100
Compress Modulus	23℃	GB/T1040-2000	MPa	1620	1600
Compress Modulus	260℃	GB/T1040-2000	MPa	1410	1400
Izod Unotched Strength	23℃	GB/T16420-1996	Kj/m²	83.2	45
Izod Unotched Strength	260℃	-	-	-	-
Coefficient of Linear		296-573K	µm/m/°C	53	49
Deflection Temperature		GB/T 1634.2	℃	>360	>360
Surface Resistivity		GB1410	Ω	10¹⁴	-
Volume Resistivity		GB1410	Ω·cm	10¹⁵	-
Dielectric Strength		-	KV/mm	22	-
Dielectric Constant		-	-	3.6	-

Polyimide Rods Performance Advantages

Thermal properties

Thermal stability: Polyimide rod can be used for long-term use in the 300°C environment and some types of polyimide can withstand short-time use in the 500°C environment. It can also used at very low temperatures. But it also works quite well down to 1k.
Coefficient of Thermal Expansion: Its low coefficient of thermal expansion means that it does not expand or contract dimensionally with temperature changes.

Mechanical Properties

Tensile strength: The tensile strength of polyimide rods is usually between 70 - 100 MPa.
Toughness: Although it will maintain some toughness at fairly low temperatures its wide range of useful applications makes it an attractive possibility.

Electrical Properties

Electrical insulation: Polyimide rod has excellent electrical insulation properties, a dielectric strength of up to 20 kV/mm (25,000 V/mm), and can be used in high-frequency electronic equipment.
Low dielectric constant: Polyimide's dielectric constant is usually about 3.3, which is acceptable for high-frequency electronic equipment.

Chemical stability

Chemical resistance: Good chemical resistance to many chemicals (e.g. solvents, acids, and alkalis) appropriate for use in harsh environments.
Radiation resistance: Polyimide is highly resistant to radiation compared to standard polymers and is well suited for applications in aerospace and medicine.

Physical Properties

Density: Polyimide rod usually has a density of about 1.42 g/cm3, which is good for use in lightweight materials.
Transparency: Polyimide rod are some that have good optical transparency for use with optical clarity for applications.

Related Products

Polyimide Rods | PI Plastic Rod

PI Plastic Rod

Available sizes of Polyimide Rods

Applications of Polyimide Rod

Processing of Polyimide Rod

Polyimide Rod Disadvantages

Storage of Polyimide Plastic Rod

Polyimide Material Data Sheet

Polyimide Rods Performance Advantages

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