Apexazole® AT Series PBI

The Apexazole® AT series comprises modified polymers produced by blending PBI with polyaryletherketone (PEEK or PEKK) through a proprietary process, specifically engineered for injection molding and extrusion. This series combines PBI’s outstanding mechanical properties and thermal resistance with the melt-processability of polyaryletherketone, achieving a glass transition temperature of up to 320°C. It offers high strength, superior thermal stability, broad chemical resistance, and excellent wear resistance. By enabling melt processing—something pure PBI cannot achieve—it allows for the cost-effective fabrication of high‑performance, complex components. The material is ideally suited for critical high‑temperature, wear‑resistant parts such as bearings, oil‑free bushings, compressor blades, and gears, providing a highly cost‑effective solution.

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Product Details

Apexazole® AT Series Modified Materials
The Apexazole® AT series comprises modified polymers produced by blending PBI with polyaryletherketone (PEEK or PEKK) through a proprietary process, specifically engineered for injection molding and extrusion. This series combines PBI’s outstanding mechanical properties and thermal resistance with the melt-processability of polyaryletherketone, achieving a glass transition temperature of 320°C. It offers high strength, superior thermal stability, broad chemical resistance, and excellent wear resistance. By enabling melt processing—something pure PBI cannot achieve—it allows for the cost-effective production of high‑performance, complex components. The material is ideally suited for critical high‑temperature, wear‑resistant parts such as bearings, oil‑free bushings, compressor blades, and gears, providing a highly cost‑effective solution.

Product Specifications

Apexazole® AT Series PBI Product Classification

Product	Matrix system	Enhanced Type	Core Positioning	Key Advantages
ATU-60	PBI + PEEK	Unfilled	Optimal melt processability	Complex geometric adaptability, high dielectric strength (17 kV/mm)
ATL-60	PBI + PEEK	Self-lubricating	Wear-resistant/Low friction	Ultra-low coefficient of friction (kinetic friction of 0.05), high PV rating, self-lubricating environment
ATF-60C	PBI + PEEK	30% carbon fiber	High strength + low creep	240 MPa tensile strength, 390 MPa flexural strength, and still maintains 100 MPa at 260°C.
ATF-60V	PBI + PEEK	Fiberglass	Electrical insulation + dimensional stability	Excellent electrical insulation, dielectric strength of 16 kV/mm, and low thermal expansion (17 µm/m·°C)
ATK-60	PBI + PEKK	Unfilled	High-temperature wear resistance	Suitable for long-term use at 430°C, short-term exposure at 760°C, and low-temperature applications down to -196°C.
ATKL-60	PBI + PEKK	Self-lubricating enhancement	Dynamic High-Load Lubrication	TK-60 self-lubricating upgraded version, specially designed for dynamic seals and high PV‑value applications.
ATK-60C	PBI + PEKK	Carbon fiber reinforced	High-strength alternative metal	TK-60 is carbon-fiber reinforced, offering a substantial increase in strength and stiffness, along with excellent wear resistance.

Mechanical and Thermal Performance Parameters

Parameter	ATU-60	ATL-60	ATF-60C	ATF-60V	ATK-60	ATKL-60
Tensile strength	100 MPa	—	240 MPa	175 MPa	100 MPa	—
Tensile modulus	5,030 MPa	—	25,600 MPa	13,700 MPa	5,100 MPa	—
Flexural strength	175 MPa	—	390 MPa	—	175 MPa	—
Flexural modulus	5,000 MPa	—	22,700 MPa	—	5,200 MPa	—
Compressive strength	207 MPa	123 MPa	—	—	—	—
Compression modulus	2,960 MPa	5,100 MPa	—	—	—	—
Heat Deflection Temperature at 1.8 MPa	—	310°C	320°C	310°C	330°C	—
TGA 5% weight loss	499°C	—	599°C	—	—	—
Coefficient of Friction (Dynamic)	—	0.05	—	—	—	Very low

Electrical Performance and Other Characteristic Parameters

Parameter	ATU-60	ATL-60	ATF-60V	ATK-60	Note
Dielectric strength	17 kV/mm	—	16 kV/mm	—	TF-60V optimal
Volume resistivity	2×10¹⁶ Ω·cm	—	1×10¹⁶ Ω·cm	—	Excellent insulation
Dielectric constant at 10 kHz	3.40	—	135 seconds	—	—
Arc resistance			R 83	R 70 (E)	TF-60V optimal
Rockwell hardness			—	R 83	—
Specific gravity	1.30	1.43	—	1.30	—
Coefficient of thermal expansion	3.4×10⁻⁵ cm/cm/°C	—	17 µm/m·°C	The lowest among all unfilled plastics	TK-60 optimal

Typical application scenarios

Product	Typical Applications
ATU-60	Lamp holders, connectors, spare seals, and injection-molded parts with complex geometries
ATL-60	Rotor blades, thrust bearings, sliding bearings, bushings, high-load friction components
ATF-60C	Planetary gears, office equipment, semiconductor/electronic mechanical components, high-temperature structural parts
ATF-60V	High-temperature electrical insulators, plasma torch protective shields, swirl baffles, and thermally expandable sensitive components
ATK-60	Vacuum chamber components, semiconductor insulator bushings, valve seat seals, clamping rings, probe tips
ATKL-60	Dynamic seals, bearings, self-lubricating valve components, and high-temperature, high-pressure lubrication applications
ATK-60C	Alternative metal wear parts, high-strength bearings, high-temperature structural seals, semiconductor vacuum chamber components

Selection Guide

Operating Condition Requirements	Recommended grade
Complex-shaped injection-molded parts / Optimal processability	ATU-60
Sliding bearing / Low-friction self-lubricating	ATL-60
High-strength structural components / High-temperature creep environment	ATF-60C
High-temperature electrical insulation / Low thermal expansion	ATF-60V
Extreme high-temperature (>400°C) wear environment	ATK-60
Dynamic High-Load Lubrication / Dynamic Sealing	ATKL-60
Alternative Metal / High-Load Wear Resistance	ATK-60C