Hydraulic Fracturing (Fracking): High-Pressure Packing Elements in HNBR.

Hydraulic Fracturing: High-Pressure Packing Elements in HNBR

Problem Statement

Hydraulic fracturing (fracking) demands packing elements capable of withstanding extreme pressures (up to 15,000 psi), high temperatures (up to 150°C), and aggressive chemical exposure (e.g., hydrocarbons, acids). Traditional NBR compounds fail due to chemical degradation and excessive compression set under cyclic loading.

Material Science Analysis

Hydrogenated Nitrile Butadiene Rubber (HNBR) excels in fracking applications due to its saturated polymer backbone. The hydrogenation process eliminates double bonds, enhancing thermal stability and chemical resistance. HNBR’s high acrylonitrile content ensures superior resistance to hydrocarbons, while its fluorine-free composition maintains cost-effectiveness compared to FKM.

Technical Specs

• Shore A Hardness: 80 ± 5
• Tensile Strength: 25 MPa
• Elongation at Break: 350%
• Temperature Range: -40°C to 150°C
• Compression Set (70h @ 150°C): ≤ 20%

Material Comparison

Material	HNBR	NBR	FKM
Temperature Range (°C)	-40 to 150	-30 to 120	-20 to 200
Compression Set (%)	≤ 20	≥ 40	≤ 15
Chemical Resistance	High	Moderate	Very High
Cost Efficiency	High	Very High	Low

Standard Compliance

RubberQ adheres to IATF 16949 standards, ensuring batch-to-batch consistency in HNBR compounding. Our in-house mixing process (A炼) controls polymer ratios, fillers, and curing agents to meet ASTM D2000 specifications. ISO 3601 compliance guarantees sealing performance under high-pressure conditions.

For custom material compound development or IATF 16949 documentation, consult RubberQ's engineering department.