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Mining specific Polyester Polyol is a high-performance polyol engineered for rigid polyurethane and polyurea elastomers used in harsh mining environments. Formulated to withstand abrasion, chemical exposure, and mechanical impact, this polyol features a cross-linked molecular structure with high functionality (3.5–4.0) and hydroxyl number of 250–350 mg KOH/g. Its reinforced backbone (incorporating aromatic segments) delivers superior tensile strength and wear resistance, critical for equipment subjected to ore, slurry, and heavy loads. With a viscosity of 6,000–12,000 cps at 25°C, it supports cast-in-place and spray-applied manufacturing processes.
Abrasion Resistance
Elastomers produced with this polyol exhibit Taber abrasion loss ≤30 mg/1000 cycles (CS-10 wheel, 1kg load), outperforming standard polyols by 40–50% in mining applications like chute liners and conveyor belts.
Chemical and Hydrolytic Stability
Resists degradation from mineral acids (pH 2–12), alkaline slurries, and oil contamination, maintaining tensile strength retention ≥80% after 1,000 hours of exposure. This stability reduces maintenance frequency in wet mining environments.
Impact Resistance
Formulated for high toughness, with Izod impact strength ≥25 kJ/m² and elongation at break ≥200%, enabling elastomers to absorb shock from falling ore and equipment vibration.
Adhesion to Substrates
Bonds strongly to steel, concrete, and rubber substrates (adhesion strength ≥2.0 MPa), ensuring long-term integrity in lined pipes and structural components.
Mining Equipment Components
Chute Liners: Protects steel chutes from abrasion during ore transport, extending service life from 3–6 months to 12–18 months.
Conveyor Rollers: Coats roller surfaces with wear-resistant elastomers, reducing friction and lowering energy consumption by 10–15%.
Pipe and Hose Systems
Slurry Pipes: Lined with PU elastomers to resist erosion from mineral slurries, with service life 3–5 times longer than unlined steel pipes.
Hydraulic Hoses: Reinforces hose inner layers for abrasion resistance against particulate-laden fluids, reducing leak risks.
Structural and Safety Components
Shock Absorbers: Used in buffer blocks for mine shafts, absorbing impact from ore carts with energy absorption ≥50 J/cm³.
Grouting Materials: Forms high-strength PU grouts for stabilizing mine tunnels, with compressive strength ≥30 MPa and low shrinkage (≤0.5%).
Container: Store in corrosion-resistant drums (stainless steel or HDPE) to prevent contamination.
Conditions: Maintain temperatures at 10–35°C with humidity ≤60%, away from direct sunlight and heat sources.
Handling: Avoid contact with strong oxidizers and water (water content ≤0.2% to prevent hydrolysis during curing).
Parameter | Value |
Appearance | Dark amber viscous liquid |
Hydroxyl Number | 250–350 mg KOH/g |
Viscosity (25°C) | 6,000–12,000 cps |
Functionality | 3.5–4.0 |
Tensile Strength (cured) | ≥30 MPa |
Elongation at Break (cured) | ≥200% |
Density (25°C) | 1.08–1.12 g/cm³ |
Mining specific Polyester Polyol is a high-performance polyol engineered for rigid polyurethane and polyurea elastomers used in harsh mining environments. Formulated to withstand abrasion, chemical exposure, and mechanical impact, this polyol features a cross-linked molecular structure with high functionality (3.5–4.0) and hydroxyl number of 250–350 mg KOH/g. Its reinforced backbone (incorporating aromatic segments) delivers superior tensile strength and wear resistance, critical for equipment subjected to ore, slurry, and heavy loads. With a viscosity of 6,000–12,000 cps at 25°C, it supports cast-in-place and spray-applied manufacturing processes.
Abrasion Resistance
Elastomers produced with this polyol exhibit Taber abrasion loss ≤30 mg/1000 cycles (CS-10 wheel, 1kg load), outperforming standard polyols by 40–50% in mining applications like chute liners and conveyor belts.
Chemical and Hydrolytic Stability
Resists degradation from mineral acids (pH 2–12), alkaline slurries, and oil contamination, maintaining tensile strength retention ≥80% after 1,000 hours of exposure. This stability reduces maintenance frequency in wet mining environments.
Impact Resistance
Formulated for high toughness, with Izod impact strength ≥25 kJ/m² and elongation at break ≥200%, enabling elastomers to absorb shock from falling ore and equipment vibration.
Adhesion to Substrates
Bonds strongly to steel, concrete, and rubber substrates (adhesion strength ≥2.0 MPa), ensuring long-term integrity in lined pipes and structural components.
Mining Equipment Components
Chute Liners: Protects steel chutes from abrasion during ore transport, extending service life from 3–6 months to 12–18 months.
Conveyor Rollers: Coats roller surfaces with wear-resistant elastomers, reducing friction and lowering energy consumption by 10–15%.
Pipe and Hose Systems
Slurry Pipes: Lined with PU elastomers to resist erosion from mineral slurries, with service life 3–5 times longer than unlined steel pipes.
Hydraulic Hoses: Reinforces hose inner layers for abrasion resistance against particulate-laden fluids, reducing leak risks.
Structural and Safety Components
Shock Absorbers: Used in buffer blocks for mine shafts, absorbing impact from ore carts with energy absorption ≥50 J/cm³.
Grouting Materials: Forms high-strength PU grouts for stabilizing mine tunnels, with compressive strength ≥30 MPa and low shrinkage (≤0.5%).
Container: Store in corrosion-resistant drums (stainless steel or HDPE) to prevent contamination.
Conditions: Maintain temperatures at 10–35°C with humidity ≤60%, away from direct sunlight and heat sources.
Handling: Avoid contact with strong oxidizers and water (water content ≤0.2% to prevent hydrolysis during curing).
Parameter | Value |
Appearance | Dark amber viscous liquid |
Hydroxyl Number | 250–350 mg KOH/g |
Viscosity (25°C) | 6,000–12,000 cps |
Functionality | 3.5–4.0 |
Tensile Strength (cured) | ≥30 MPa |
Elongation at Break (cured) | ≥200% |
Density (25°C) | 1.08–1.12 g/cm³ |
