CF TPU High Toughness polymer
LCF TPU compound resin is a composite material prepared through the pultrusion process, which perfectly combines long carbon fibers with a thermoplastic polyurethane matrix. This material breaks the boundaries of traditional perception: it not only possesses the ultra-high strength and rigidity of carbon fibers but also retains the excellent toughness and wear resistance of the TPU matrix.
Technical Performance Perspective (What it is)
"Before this, rigidity and toughness were often mutually exclusive." From the perspective of materials science, the performance of LCF TPU is an extremely rare "dual combination":
Excellent impact resistance and high modulus coexist: Usually, rigid materials (such as LCF PA/PP) tend to be brittle, while tough materials (such as pure TPU) are too soft. LCF TPU plastic pellet can maintain a high bending modulus (hardness) while providing astonishing impact resistance. When subjected to severe impacts, it will not crack like ordinary hard plastics.
Outstanding fatigue resistance: Due to the long carbon fibers forming a framework network within the matrix, they can withstand repeated bending and loading without breaking, and their lifespan is much longer than that of short fiber reinforced materials.
Low density, high strength (light weighting): The addition of carbon fibers significantly reduces the material's density (compared to metals), while providing a strength-to-weight ratio even surpassing that of aluminum alloys.
Electrical conductivity and electromagnetic interference (EMI) shielding: Carbon fibers inherently possess electrical conductivity, endowing the material with excellent anti-static and electromagnetic shielding properties, without the need for additional addition of carbon black or metal powders.
Wear resistance and chemical resistance: It inherits the characteristics of the TPU matrix, has good resistance to oils, greases and solvents, and is also resistant to wear.
Market Value Perspective (Why It Matters)
"Re-defining the material selection standards for high-end manufacturing". What does the emergence of LCF TPU composite in the market signify? It represents the trend of "functionalization of structural components".
Filling the gap between metal and plastic: There has always been a lack of a material on the market that can bear weight like metal and absorb shock like rubber. LCF TPU fills this gap and has become the preferred choice for "flexible structural components".
High-end alternative solution: It is an upgraded replacement for LCF PA (nylon) or LCF PP, especially in situations where both structural support and dynamic damping (deceleration) are required.
Simplified process cost: LCF TPU can simultaneously meet the requirements of structural strength and touch sensation through a single injection molding process, thereby reducing production complexity and costs.
Application Scenario Perspective
Where it is used
High-end sports equipment
Professional running shoes arch plates (carbon plates), ski boot shells, skateboard decks
By leveraging its high rebound performance, it provides energy feedback and is less prone to cracking even in extremely low temperatures.
Drones and Aviation
Passing through the frame and blade protection cover of the aircraft requires extremely high shock resistance (no damage even if the aircraft is blown up) and rigidity. At the same time, the damping properties of the materials should be utilized to reduce the impact of motor vibrations on the flight control system.
Industrial protection
Safety shoe toe cap (Safety Toe Cap)
An alternative to steel toe. It can withstand heavy objects falling (high impact resistance), is lightweight, comfortable to wear, and unlike steel toe, it does not conduct heat or cold.
Electronic consumer products
Mobile phone/tablet protective case holders, smartwatch strap connectors
Provide high strength under ultra-thin wall thickness, while having electromagnetic shielding function to protect the internal chips.
Electric tools
Handle and housing of handheld tools
Excellent performance in drop test, resistant to oil stains, good grip feel.
FAQ
Q: What is the greatest advantage of LCF TPU compared to LCF PA material?
A: The main difference lies in "high impact resistance and high toughness". Although LCF PA has a high rigidity, it is prone to brittle fracture when subjected to severe impacts. LCF TPU takes advantage of the elasticity of the TPU matrix. While maintaining a high modulus (hardness), it possesses excellent dynamic fatigue life and impact resistance.
Q: What are the common options for the content (in percentage) of carbon fiber?
A: We can adjust the carbon fiber content according to the specific application scenario, usually ranging from 20% to 60%.
Q: Do the materials need to be dried?
A: Required. TPU is a hygroscopic material. To prevent bubble formation and hydrolytic degradation, thorough drying must be carried out before processing.
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