550CA30 Carbon-Fiber-Reinforced PEEK

Features of 550CA30 Carbon-Fiber-Reinforced PEEK

1. Mechanical Properties

The addition of carbon fiber significantly boosts the mechanical performance of 550CA30. Typical properties include:

• Tensile Strength: ~165 MPa (at 23°C), exceeding that of pure PEEK (around 100 MPa) due to the reinforcing effect of carbon fibers.

• Flexural Strength: ~165 MPa (at 23°C), providing excellent rigidity for structural components.

• Compressive Strength: ~125 MPa (at 23°C), ensuring resistance to deformation under heavy loads.

• Charpy Impact Strength (Notched): ~7 kJ/m² (at 23°C), indicating improved toughness compared to unreinforced PEEK.

• These properties make 550CA30 suitable for applications requiring high strength and durability.

2. Thermal Properties

550CA30 retains PEEK’s excellent thermal stability, with enhanced performance due to carbon fiber:

• Glass Transition Temperature (Tg): ~143°C (onset), maintaining dimensional stability at elevated temperatures.

• Melting Point: ~343°C, consistent with neat PEEK, allowing use in high-temperature environments.

• Heat Deflection Temperature (HDT): ~152°C (under 1.8 MPa load), indicating the material can withstand thermal deformation in loaded conditions.

• Thermal Conductivity: ~3 W/m·K, three times higher than pure PEEK (1 W/m·K), improving heat dissipation in applications like electronics.

3. Physical & Chemical Properties

• Density: ~1.52 g/cm³ (higher than pure PEEK’s 1.32 g/cm³ due to carbon fiber), contributing to reduced part weight compared to metals.

• Water Absorption: ~0.1% (24 hours, 23°C), ensuring dimensional stability in humid or wet environments.

• Chemical Resistance: Resistant to most chemicals, including oils, fuels, and acids (except concentrated sulfuric acid), similar to pure PEEK. This makes it ideal for harsh chemical environments.

4. Electrical Properties

Despite being a PEEK-based composite, 550CA30 maintains good electrical insulation properties:

• Dielectric Strength: ~23 kV/mm (2 mm thickness), suitable for insulating applications in electrical systems.

• Volume Resistivity: ~10¹⁶ Ω·cm (at 10 V), ensuring minimal electrical leakage.

• Dielectric Constant: ~3.5 (at 1 kHz), stable across a wide frequency range.

Specifications of 550CA30 Carbon-Fiber-Reinforced PEEK

PEEK®—550CA30
Test Item	Test Standard	Test Conditions	Unit	Test Data
Mechanical Properties
Tensile Strength	ISO 527	Fracture, 23°C	MPa	250
Elongation at Break	ISO 527	Fracture, 23°C	%	1.6
Flexural Strength	ISO 178	Fracture, 23°C	MPa	370
Flexural Modulus	ISO 178	23°C	GPa	22
Compressive Strength	ISO 604	23°C	MPa	300
Impact Strength of Simply Supported Beam	ISO 179/1eA	Notched	kJ m-2	7
	ISO 179/1U	Unnotched	kJ m-2	45
Impact Strength of Cantilever Beam	ISO 180/A	Notched	kJ m-2	9
	ISO 180/U	Unnotched	kJ m-2	45
Forming Shrinkage Rate	ISO 294-4	Parallel to flow direction	%	0.1
		Perpendicular to flow direction	%	0.5
Thermal Performance
Melting point	ISO 11357	-	℃	343
Glass transition temperature	ISO 11357	Initial	℃	143
Specific heat capacity	DSC	23°C	kJ kg-1  ℃-1	1.8
Thermal expansion coefficient	ISO 11359	Below Tg along flow direction	ppm K-1	5
		Above Tg along flow direction	ppm K-1	6
Heat deflection temperature	ISO 75-f	1.8 Mpa	℃	336
Thermal conductivity	ISO 22007-4	23℃	W m-1 K-1	0.95
Liquidity
Melt Index	ISO 1133	380℃, 5kg	g 10min-1	5
Others
Density	ISO 1183	Crystalline	g cm-3	1.4
		Non-crystalline	g cm-3	-
Shore D Hardness	ISO 868	23°C		88
Water Absorption Rate (3.2mm Thick Tensile Rod) (Immersion Test)	ISO 62-1	24 hours, 23°C	%	0.04
		Equilibrium, 23°C	%	0.3
Electrical Properties
Dielectric Strength	IEC 60243-1	2mm	kV mm-1	-
Compared to Tracking Index	IEC 60112	-	V	-
Dielectric Constant	IEC 60250	23℃, 1kHz	-	-
		23℃, 50Hz	-	-
Tangent of Loss	IEC 60250	23℃, 1MHz	-	-
Volume Resistivity	IEC 60093	23℃, 1V	Ω cm	105
		275℃	Ω cm	-

Applications of 550CA30 Carbon-Fiber-Reinforced PEEK

The combination of mechanical strength, thermal stability, and chemical resistance makes 550CA30 a versatile material for various industries:

• Aerospace: Used in aircraft components like balance devices, engine parts, and fairings. Its lightweight and high-temperature resistance reduce fuel consumption and improve aircraft performance.

• Automotive: Ideal for replacing metal in ABS functional parts, electronic pumps, and brake systems. It lowers component weight, reduces rotational inertia, and enhances system response speed.

• Medical: Suitable for biomedical implants such as bone plates, spinal fusion devices, and hip joints. Its biocompatibility, wear resistance, and proximity to human bone elasticity make it a preferred alternative to metal implants.

• Electronics: Used in IC chip carriers, test sockets, and vacuum suction cups. Its high thermal conductivity and electrical insulation properties ensure reliable performance in high-temperature and high-humidity environments.

• Industrial: Applied in compressor valve seats, piston rings, and seals. The material’s wear resistance and thermal stability allow it to withstand harsh operating conditions in pumps and valves.