High Efficiency Conduction:A conductive solution for EPDM/FKM compound based on Carbon Nanotubes

I. Introduction: Challenges and Opportunities in the Era of Rubber Functionalization

The escalating performance demands from industries such as electronics, automotive, aerospace, medical, and energy have rendered high elasticity and sealing properties alone insufficient for rubber products. Traditional rubber materials face significant challenges, particularly in functional aspects like static dissipation, electrical conductivity, and electromagnetic interference (EMI) shielding.
• Challenge 1: High loading levels of traditional conductive fillers (e.g., carbon black) severely compromise rubber’s elasticity and processability, creating a need for a Cost effective Carbon Nanotube for wire and cable and other applications.
• Challenge 2: Developing Custom Rubber Formulation is complex, and SMEs often lack R&D capabilities for creating Specialty Rubber Compounds.
• Challenge 3: Balancing material performance with cost is difficult, often forcing customers to compromise.
As a top-ten FKM rubber Compound manufacturer and EPDM rubber Compound manufacturer in China, SaneZen Group, leveraging its self-developed CNT44G as a Low Loading Conductive Filler, proposes a “Material + Technology + Production” integrated functional rubber solution. We aim to provide customers with full-chain support, from formula design to finished product manufacturing.

II. CNT44G Carbon Nanotubes: The High-Efficiency Conductive Enhancer

Carbon Nanotubes (CNT), hailed as the “Black Gold of the 21st Century,” possess a unique tubular nanostructure that grants them exceptional mechanical, electrical, and thermal properties. CNT44G is a multi-walled carbon nanotube product optimized by SaneZen Group for rubber systems, offering the following core advantages:

1. Low Loading, High Conductivity
   • Adding only 1–5 phr to EPDM or FKM achieves multi-level conductivity, from antistatic (10⁶–10³ Ω) to EMI shielding (<10³ Ω), making it an ideal Carbon Nanotube for cable shielding application.
   • Significantly lower loading compared to traditional conductive carbon black (typically 20–40 phr), vastly preserving the base rubber’s elasticity and flexibility, establishing CNT44G as a superior Carbon Nanotube to replace carbon black in rubber.
2. Enhanced Mechanical Properties
   • CNT’s 3D network structure effectively disperses stress, significantly improving tensile strength, modulus, and tear strength, directly demonstrating how Carbon Nanotube to improve rubber tear strength works in practice.
   • In FKM, adding 5 phr of CNT44G can increase tensile strength from 8.77 MPa to 14.65 MPa, an improvement of over 67%.
3. Optimized Heat Aging Resistance and Compression Set
   • CNT-enhanced FKM and EPDM maintain high strength retention rates after high-temperature aging.
   • Significantly reduced compression set enhances the long-term reliability of sealing components.

III. FKM + CNT44G: The Perfect Union of High-Performance Sealing and Conductivity

Fluorocarbon Rubber (FKM) is widely used in automotive, petrochemical, and aerospace industries due to its excellent resistance to high temperatures, oils, and chemicals. However, its inherent insulating properties limit its application in scenarios requiring explosion-proofing and electromagnetic compatibility. SaneZen serves as a High performance conductive FKM compound supplier, addressing this gap.

Technical Highlights:
• Improved Curing Efficiency: CNT44G can shorten TC90 time, boosting production efficiency.
• Stable High-Temperature Performance: Minimal hardness change and high strength retention after aging at 200°C for 70 hours.
• EMI Shielding Capability: A 5.2 phr loading achieves EMI shielding levels (<10² Ω), suitable for electronic device seals.

IV. EPDM + CNT44G: Synergistic Enhancement of Elasticity and Conductivity

Ethylene Propylene Diene Monomer (EPDM) rubber is widely used in construction, automotive, and cable industries for its excellent ozone, weathering, and electrical insulation resistance. However, applications like conveyor belts, conductive rollers, and antistatic floor mats require introducing conductivity without sacrificing elasticity, creating a strong use case for Carbon Nanotube for conductive EPDM rubber compounds.

Technical Highlights:
• High Efficiency at Low Loading: Only 5 phr CNT44G achieves conductivity comparable to 20 phr conductive carbon black, while maintaining superior tear strength and wear resistance.
• Excellent Aging Performance: After aging at 120°C for 70 hours, the CNT sample showed higher strength retention and lower compression set.
• Processing Friendly: Our Carbon Nanotube masterbatch for easy processing ensures minimal impact on curing characteristics, compatible with existing production lines.

V. The SaneZen Group Turnkey Value System: More Than Materials, A Total Solution

1. Top-Ten National Compound Plant: Custom Formulation Capability
   • We possess complete compound production lines and a comprehensive formulation database, enabling us to provide Solutions for antistatic rubber parts and other Custom Rubber Formulation needs.
   • Controlled and traceable process from lab samples to ton-scale mass production.
2. Self-Developed CNT44G: Core Technological Barrier
   • CNT44G is a pre-dispersed, easy-to-process Carbon Nanotube masterbatch for easy processing specifically designed for rubber systems.
   • We provide not just materials, but also conductive performance design services.
3. Technical Synergy: Closed-Loop Support from Material to Product
   • As a Technical partner for conductive rubber development, customers can entrust us with the entire process: Formula Design → Compound Production → Sample Prototyping → Performance Testing → Mass Production Optimization.
   • Being a Carbon Nanotube supplier with compound factory ensures seamless integration and quality control throughout the production chain.

VI. Typical Application Scenarios

Industry	Product Examples	Core Requirements	SaneZen Solution
Automotive	Antistatic Seals, Conductive Oil Seals	Antistatic, Oil Resistance, Long Lifetime	FKM + CNT44G 3–5 phr
Electronics	Keyboard Rollers, Shielding Gaskets, Conductive Rollers	EMI Shielding, Low Dusting, High Elasticity	EPDM + CNT44G 2–4 phr
Medical	Conductive Electrodes, Antistatic Surgical Table Mats	Biocompatibility, Antistatic, Easy Cleaning	Silicone/EPDM + CNT44G 1–3 phr
Industrial Conveying	Antistatic Conveyor Belts, Conductive Rollers	Wear Resistance, Antistatic, Ozone Resistance	EPDM + CNT44G 3–5 phr
Energy & Aerospace	Fuel System Seals, EMI Shielding Enclosures	High-Temp Resistance, Flame Retardancy, EMC	FKM + CNT44G 4–6 phr

VII. Conclusion: Partner with SaneZen to Co-create a New Era for RubberAmid the wave of rubber functionalization and high performance, SaneZen Group has established a “Material-Formula-Process-Production” integrated service system, centered on our self-developed CNT44G conductive filler and custom compounding capabilities. We provide not just products, but a trustworthy Technical partner for conductive rubber development. Our assets include our own top-ten national rubber compounding plant, an independent color silicone rubber factory, and an R&D center and factory dedicated to specialty rubber fillers and additives.

If you are looking for:
• ✅ Solutions for antistatic rubber parts and EMI shielding functions;
• ✅ A Cost effective Carbon Nanotube for wire and cable and other rubber enhancements;
• ✅ A Carbon Nanotube supplier with compound factory for turnkey technical support from sample to mass production;

Contact us today for free CNT44G samples and Custom Rubber Formulation advice.

Website : www.sanezenrubber.com 

WhatSapp : +86-136 7164 1995

Email: yorichen@sanezen.com