How to effectively reduce carbon black and plasticizer costs without compromising performance
1. Market Background: Cost Pressures Amid Raw Material Price Hikes
Against the backdrop of ongoing geopolitical tensions in the Middle East, global commodity markets have experienced waves of volatility. Carbon black and plasticizers—core raw materials in the rubber industry—have seen sustained price increases, placing unprecedented cost pressure on rubber product manufacturers. Carbon black serves as the primary reinforcing filler in rubber compounds, and its price fluctuations directly impact formulation costs. Plasticizers, as key processing aids for hardness adjustment, also constitute a significant portion of overall material costs.
Against this backdrop, finding ways to effectively reduce costs while maintaining product quality has become an urgent challenge for every rubber product manufacturer. As a trusted Rubber Functional filler Manufacturers and Rubber Functional filler Suppliers, Sane Zenchem offers innovative solutions to this challenge. The nano-reinforcing agents PF87 and PF88, developed by Sane Zenchem, provide an innovative approach to material cost optimization.
2. Product Innovation: The Unique Value of Nano-Reinforcing Agents
The nano-reinforcing agents PF87 and PF88, developed by Sane Zenchem, are functional fillers specifically designed for rubber and rubber/plastic alloy systems. As a leading Rubber Functional filler Factory, Sane Zenchem ensures these products deliver consistent quality. Compared to traditional carbon black, they offer the following core advantages:
- High specific surface area and nano-scale dispersion: Their unique nano-structure enables uniform dispersion within the rubber matrix, forming an efficient reinforcing network;
- Superior processing fluidity: Compared to carbon black, these nano-reinforcing agents exhibit better dispersion and flow characteristics during mixing, reducing mixing energy consumption;
- Partial plasticizer replacement functionality: Specialized surface treatment enables effective reduction of plasticizer dosage while maintaining hardness;
- Significant cost advantages: By replacing a portion of the more expensive carbon black and plasticizers while maintaining performance, overall material costs are substantially reduced. This positions Sane Zenchem among the premier Rubber reinforcing filler Manufacturers China and Rubber reinforcing filler Suppliers China.
As a recognized rubber filler supplier China, Sane Zenchem delivers high-performance solutions tailored to the needs of modern rubber compounders. The PF87 and PF88 products serve as an excellent rubber filler for NBR PVC, offering both reinforcement and cost-efficiency.
3. Experimental Validation: Performance of PF87/PF88 in NBR/PVC Systems
To validate the performance of PF87/PF88 in practical applications, systematic comparative testing was conducted using a 70 Shore A NBR/PVC (nitrile rubber/PVC) hose formulation. The experimental approach was: equivalent replacement of 60% of N550 carbon black, while reducing plasticizer dosage from 38 phr to 25 phr, maintaining consistent hardness while evaluating overall performance changes. This approach demonstrates how PF87/PF88 function as an effective Filler to reduce rubber compound cost without sacrificing key properties.
3.1 Formulation Adjustment Plan
| Component | Original Formulation | Adjusted Formulation (PF87) | Adjusted Formulation (PF88) |
| N550 Carbon Black | 100 phr | 40 phr | 40 phr |
| Nano-Reinforcing Agent | – | 60 phr | 60 phr |
| Plasticizer | 38 phr | 25 phr | 25 phr |
| Polymer Content | Higher | Slightly Lower | Slightly Lower |
3.2 Mechanical Property Test Results
Test data shows that PF87 and PF88 achieve reinforcing effects comparable to N550 carbon black. As a cost effective rubber filler manufacturer, Sane Zenchem ensures that these products deliver consistent mechanical performance:
– Tensile Strength: Formulations with PF87 and PF88 showed tensile strength comparable to the original formulation, with some samples showing slight improvement;
– Tear Strength: Slight decrease compared to the original formulation (original tear strength ~11 kN/m, replacement formulations ~10.3-10.8 kN/m), still within acceptable range;
– Hardness: By reducing plasticizer dosage, the hardness of the replacement formulations remained consistent with the original formulation.
3.3 Compression Set Performance
Compression set is a critical indicator for long-term performance of sealing products. Testing was conducted under conditions of 120°C × 24 hours × 25% compression:
| Compound ID | Compression Set Result |
| Original Formulation (936-1) | Approximately 72% |
| PF87 Replacement Formulation | Approximately 81% |
| PF88 Replacement Formulation | Approximately 82% |
The data indicates that formulations with PF87/PF88 replacement showed slightly higher compression set compared to the original formulation. However, considering the significant cost reduction achieved, this difference is acceptable for most applications.
ALT Text: Rubber compound testing in laboratory — compression set and tensile strength testing equipment in operation at Sane Zenchem R&D center.
4. Practical Application Case: Success Story in NBR/PVC Hose Manufacturing
Multiple hose manufacturers have successfully implemented the PF87/PF88 technical solution developed by Sane Zenchem. These products are widely recognized as a reliable rubber filler for reducing carbon black usage, enabling significant material cost savings while maintaining performance. Taking an automotive hose manufacturer as an example:
The customer originally used a full carbon black reinforcement system (N550 at 100 phr, plasticizer at 38 phr). After adopting PF87 to replace 60% of the carbon black while simultaneously reducing plasticizer dosage, significant results were achieved:
– Material Cost: Reduced compound cost by approximately 12-15% per kilogram;
– Processing Performance: Reduced mixing energy consumption, improved dispersion, stable extrusion surface quality;
– Finished Product Performance: Tensile strength maintained comparable levels, hardness met requirements, compression set slightly increased but remained within customer specifications;
– Overall Benefits: The customer expressed high satisfaction with the cost reduction results and has implemented the solution across multiple production lines.
This case highlights how PF87 serves as an effective rubber filler that replaces carbon black in NBR, offering a practical pathway to cost optimization. Additionally, its ability to function as a rubber filler to reduce plasticizer without increasing hardness makes it particularly valuable in formulations where hardness control is critical.
As a proven Rubber Filler for lowering rubber hose manufacturing material cost, PF87/PF88 have become a preferred choice among manufacturers seeking competitive advantage. The solution also serves as a highly effective cost effective rubber filler for NBR PVC compound, delivering performance and affordability in one package.
” In the current environment of rising raw material prices, the PF87 solution has helped us stabilize product costs while maintaining consistent product quality.” — Customer Technical Manager
For applications requiring specific reinforcement levels, PF87 and PF88 also function as a reliable Rubber filler to replace N550 carbon black, enabling formulators to maintain performance while reducing dependency on traditional carbon black grades.
5. Manufacturing Capabilities: Sane Zenchem’s Production Excellence
Sane Zenchem operates advanced nano-reinforcing agent production lines with rigorous quality control systems, ensuring consistent product quality batch after batch.
5.1 Modern Manufacturing Facility
The manufacturing facility is equipped with advanced reaction synthesis systems, precision grinding equipment, and automated packaging lines, with an annual production capacity exceeding tens of thousands of tons, capable of meeting large-volume supply requirements for domestic and international customers.
5.2 Core Production Equipment
– Nano-Grinding System: Ensures uniform particle size distribution and excellent dispersion performance;
– Surface Treatment Reactors: Enables surface functionalization of fillers, enhancing compatibility with rubber matrices;
– Automated Packaging Lines: Maintains product packaging quality and prevents moisture absorption and contamination;
– Quality Control Center: Equipped with tensile testers, rheometers, aging ovens, and comprehensive testing equipment for full-process quality monitoring.
6. Technical Summary and Application Recommendations
Based on the experimental validation and practical application cases, the following conclusions can be drawn:
6.1 Core Advantages of PF87/PF88
1. Significant Cost Effectiveness: Against the backdrop of rising carbon black and plasticizer prices, this replacement solution effectively reduces overall material costs, serving as an ideal rubber filler that lowers rubber compound cost;
2. Reliable Reinforcement Performance: After replacing 60% of carbon black, tensile strength remains comparable, and hardness can be maintained by adjusting plasticizer dosage;
3. Excellent Processability: Better dispersion than carbon black, reduced mixing energy consumption, smooth extrusion surface;
4. Broad Applicability: Particularly suitable for polar rubber systems including NBR/PVC, NBR, and EPDM.
6.2 Application Recommendations
– Replacement Ratio: Recommend starting with 30-40% replacement, gradually optimizing up to 60%;
– Plasticizer Adjustment: Reduce plasticizer dosage proportionally to maintain target hardness;
– Curing System: Minor adjustments to accelerator dosage may be required to achieve optimal cure rate;
– Application Fields: Suitable for hoses, seals, gaskets, sheets, and other cost-sensitive rubber products.
7. Frequently Asked Questions (FAQs)
- What is the difference between PF87 and PF88? How should I choose between them?
A: Both PF87 and PF88 are nano-reinforcing agents developed by Sane Zenchem. The primary differences lie in their surface treatment processes and particle size distribution. In practical applications, both can effectively replace a portion of N550 carbon black while reducing plasticizer dosage. We recommend conducting small-scale trials based on your specific rubber matrix (such as NBR/PVC, NBR, EPDM, etc.) and processing conditions to determine the optimal product. Our technical team is available to provide formulation optimization support.
- Why does compression set increase slightly after replacing 60% of carbon black? Can this be improved?
A: A slight increase in compression set is a common phenomenon when replacing carbon black, as nano-reinforcing agents function through a different reinforcement mechanism compared to traditional carbon black. Test data shows compression set increased from approximately 72% to approximately 81-82% after replacement. This change remains acceptable for most hose, seal, and gasket applications. For further improvement, consider minor adjustments to the curing system (such as slightly increasing accelerator dosage or adjusting cure temperature), or reduce the replacement ratio (e.g., from 60% to 50%) to achieve a better balance between cost and performance.
- Besides NBR/PVC systems, what other rubber types are PF87/PF88 suitable for?
A: PF87/PF88 offer good versatility. In addition to NBR/PVC rubber/plastic alloy systems, they are also suitable for various polar rubber systems including NBR (nitrile rubber), EPDM (ethylene propylene diene monomer), and CR (chloroprene rubber). Reinforcement effectiveness and optimal plasticizer replacement ratios may vary slightly depending on the base polymer. We recommend conducting formulation validation before application in new systems. Our technical team can provide customized formulation recommendations based on your specific requirements.
- What processing adjustments are needed when using PF87/PF88?
A: When using nano-reinforcing agents, mixing processes generally require no significant adjustments. Due to the excellent dispersion and flow characteristics of PF87/PF88, some customers have reported reduced mixing energy consumption. It is important to note that after replacing a portion of carbon black, the cure characteristics of the compound may change slightly. We recommend optimizing cure time (TC90) using a rheometer before production scale-up. Additionally, since plasticizer dosage is reduced, flow behavior during extrusion or molding may change slightly; processing temperature or extrusion speed may be adjusted accordingly based on actual conditions.
8. Conclusion: Seizing Opportunities, Proactively Managing Raw Material Volatility
The raw material price increases triggered by geopolitical tensions in the Middle East are unlikely to ease in the near term. Against this backdrop, rubber product manufacturers must proactively innovate and seek more cost-effective alternatives to remain competitive in the market.
The nano-reinforcing agents PF87 and PF88, developed by Sane Zenchem, provide a practical pathway to cost reduction. As a recognized Rubber Functional filler Manufacturers, Rubber Functional filler Suppliers, and Rubber Functional filler Factory, Sane Zenchem continues to support the industry with innovative, cost-effective solutions. With a strong reputation among Rubber reinforcing filler Manufacturers China, Rubber reinforcing filler Suppliers China, and as a trusted rubber filler supplier China, the company remains committed to delivering high-performance materials.
We look forward to collaborating with customers in the hose, sealing, sheet, and related industries to jointly address raw material price challenges and achieve mutually beneficial outcomes. Whether you are seeking a rubber filler for NBR PVC, a Filler to reduce rubber compound cost, or a cost effective rubber filler manufacturer, Sane Zenchem is your trusted partner.
Get in touch with us today to request a sample, technical data sheet, or to discuss your specific application requirements.
Email: yorichen@sanezen.com
Website: www.sanezenrubber.com
Phone:+ 86 – 136 7164 1995