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HPP-LCF30B | The High-Modulus Rigid PP CF30

HPP-LCF30B | The High-Modulus Rigid PP CF30

Details
Model: LFT-G® PP-LCF30-BC03B
Material Type: Long Carbon Fiber Reinforced Polypropylene (LCF)
Fiber Content: 30% Carbon Fiber
Color: Black /
Custom Processing: Injection Molding
Category
PP LCF Compound
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Description
Technical Parameters

LFT-G® HPP-LCF30B | The High-Modulus Rigid PP CF30 (Homo-PP)

LFT-G® 30% Long Carbon Fiber PP (Homo Grade)

LFT-G® HPP-LCF30B - High Modulus Carbon PPWhile Copolymer PP is known for toughness, Homopolymer PP (Homo-PP) is the king of stiffness and heat resistance. LFT-G® HPP-LCF30B leverages this rigid matrix reinforced with 30% Long Carbon Fiber to create a material that offers maximum structural stability.

This "High Modulus" grade utilizes cost-effective Domestic Carbon Fiber to deliver exceptional performance without the high price tag. With a flexural modulus exceeding 16,000 MPa, it resists creep (deformation under load) significantly better than Copo-PP or Glass Fiber grades, making it ideal for high-speed rotating parts and precision frames that must hold tight tolerances under heat.

  • √ Maximum Static Stiffness: The Homo-PP matrix provides higher crystallinity, resulting in a harder surface and greater resistance to bending under sustained loads.
  • √ Ultra-Lightweight (1.12 g/cm³): Replaces aluminum and zinc die-castings, reducing part weight by 50% while offering sufficient rigidity for non-impact structural parts.
  • √ Electrical Conductivity: The 30% carbon network provides excellent EMI shielding and static dissipation (ESD), protecting sensitive electronics.
  •  

 

Homo-PP vs. Copo-PP: Heat Rigidity

At elevated temperatures (80°C+), Homopolymer PP holds its shape better.

 
Copo-PP CF30 Softens earlier
VS
+20% Modulus
LFT-G® HPP-LCF30 Stiff at 100°C

Typical Material Properties (HPP-LCF30B)

The following values are typical data for LFT-G® HPP-LCF30B (National Carbon / Homopolymer) and are for reference only. Data is for Dry-As-Molded (DAM) state. Please contact us for the official Technical Data Sheet (TDS).

Mechanical Properties

Property Test Method Value (DAM)
Tensile Modulus ISO 527 18,000 MPa
Tensile Strength ISO 527 125 MPa
Tensile Strain at Break ISO 527 1.4 %
Flexural Modulus ISO 178 13,500 MPa
Notched Izod Impact (23°C) ISO 180/A 44 kJ/m²
Surface Resistivity ASTM D257 103 - 10⁴ Ω/sq (EMI Shielding)

 

Thermal & Physical Properties

Property Test Method Value
Density ISO 1183 1.02 g/cm³
HDT/A (1.8 MPa) ISO 75 160 °C
HDT/C (8.0 MPa) ISO 75 115 °C
Melting Temperature ISO 11357 ~168 °C
Mold Shrinkage (Flow) ISO 294-4 0.1 - 0.2 %

 

 

 

Processing Information

The following values are recommendations. We recommend desiccant / dry air dryers (moisture content below 0.1%).

Homo-PP is more heat resistant; slight increases in mold temperature improve surface finish.

Parameter Recommendation
Drying Temperature 80 - 100 °C
Drying Time 2 - 3 hours
Melt Temperature (Nozzle ③) 230 - 260 °C
Mold Temperature (Zone ②) 50 - 80 °C
Back Pressure Low (to minimize fiber damage)

Injection molding Process info

 

 

Case Study: Industrial Centrifugal Fan Impeller

Large centrifugal fan impeller made of LFT Homo-PP Carbon

Large diameter industrial fan (600mm). Moves hot air (80°C). Must not deform (creep) to maintain aerodynamic efficiency.

Aerodynamic Efficiency Report

The Problem (Copo-PP GF30):
At 80°C, the Copo-PP blades "crept" (bent) under centrifugal force. Airflow efficiency dropped by 15% after 1 month.
The Solution (LFT-G® HPP-LCF30B):
  • Rigidity: Homo-PP base maintained stiffness at 80°C. Zero blade deformation.
  • Weight: 30% lighter than aluminum, allowing faster motor spin-up.
  • Safety: Carbon fiber dissipated static, preventing dust explosion risks in grain silos.

Precision Stability Zones

📷

Camera Gimbals

Requires zero vibration and light weight. Homo-PP carbon provides the stiffness to keep footage stable without weighing down the drone.

🧵

Textile Swing Arms

Fast-moving parts in looms. High modulus reduces deflection, ensuring precise thread placement at high speeds.

💾

Electronic Trays

ESD safe handling trays. Homo-PP resists warping during high-temperature washing cycles better than Copo-PP.

People Also Ask (Google PAA)

1. What is the difference between Homo-PP and Copo-PP carbon fiber?

A: It comes down to Stiffness vs. Toughness. Homo-PP (Homopolymer) is highly crystalline, offering higher stiffness and better heat resistance (deflection temp). Copo-PP (Copolymer) has rubbery blocks for better impact resistance but is slightly softer. Choose HPP-LCF30B (Homo) for fans and structural frames; choose Copo for car bumpers.

2. Is 30% Carbon Fiber PP conductive?

A: Yes. At 30% loading, the carbon fibers form a conductive network. LFT-G® HPP-LCF30 typically has a surface resistivity of 103 - 10⁴ Ω/sq. This provides excellent EMI/RFI shielding for electronics and Anti-Static (ESD) properties for industrial environments, eliminating the need for conductive paints.

3. Which is better: GF50 or CF30?

A: CF30 (Carbon) wins on weight. While 50% Glass Fiber (GF50) might match the stiffness of 30% Carbon Fiber (CF30), the Carbon part will be 30-40% lighter (1.12 g/cm³ vs 1.50 g/cm³). For moving parts like drone arms or robot effectors, Carbon Fiber is the superior choice to reduce inertia and energy consumption.

Ready for Rigid Performance?

Get the maximum stiffness and heat resistance with LFT-G® HPP-LCF30B. Contact our material specialists today to discuss your project or request a sample.

 

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