| HS Code | 665898 |
| Density | 1.04 g/cm³ |
| Water Absorption Equilibrium | 1.8 % |
| Tensile Strength At Break | 48 MPa |
| Tensile Elongation At Break | 300 % |
| Flexural Modulus | 450 MPa |
| Flexural Strength | 38 MPa |
| Izod Impact Strength Notched | 19 kJ/m² |
| Shore D Hardness | 64 |
| Melting Point | 186 °C |
| Heat Deflection Temperature 0 45 Mpa | 55 °C |
| Heat Deflection Temperature 1 82 Mpa | 40 °C |
| Volume Resistivity | 1e13 ohm·cm |
As an accredited Suzhou Hipro Polymers Hiprolon 11ESNNHL P20 Nylon, conditioned factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Supplied in 25 kg sealed moisture-barrier bags to maintain conditioned nylon resin, ensuring consistent processing quality. |
| Container Loading (20′ FCL) | 20′ FCL: conditioned nylon resin in sealed moisture-proof bags on pallets, securely loaded to prevent shifting during transit. |
| Shipping | Ship as non-hazardous polymer pellets in sealed, moisture-resistant packaging. Conditioned nylon requires humidity-controlled transport to prevent moisture absorption. Store in dry, ventilated containers, away from heat and direct sunlight. Use standard dry cargo handling, no special placards required, but protect from prolonged exposure to environmental moisture. |
| Storage | Store Hiprolon 11ESNNHL P20 Nylon in a cool, dry, well-ventilated area away from direct sunlight, heat, and ignition sources. Keep containers tightly sealed to prevent moisture pickup and contamination. Avoid contact with strong oxidizers. Maintain moderate humidity and stable temperatures; do not store outdoors or near open flames. |
| Shelf Life | Store in a cool, dry place away from sunlight. Shelf life is typically 12 months from manufacture date when properly sealed. |
In automotive fuel vapour recovery and liquid fuel return circuits, the conditioned equilibrium moisture of Hiprolon 11ESNNHL P20 is specified to shift the ductile-to-brittle transition below -40°C for post-assembly clips and couplings, while the polyamide 11 backbone retains zinc chloride stress-cracking resistance required for underbody exposure after road-deicer contact. The compliance framework spans SAE J2260, DIN 73378, and ISO 1817; ISO 1817 immersion is run in Fuel C and Fuel D at 60°C for 70 h to record volume change, mass change, and retained tensile elongation, while DIN 73378 governs dimensional stability and burst pressure after air-oven ageing. At the formulation level, the recommended addition ratio is 100 phr Hiprolon 11ESNNHL P20 as the neat base resin, with a 50% carbon-black masterbatch added at 2.0–2.5 wt% for UV stabilisation in chassis-mounted tube sections; external plasticiser is not required because the conditioned moisture content and long methylene sequence provide low-temperature ductility. Downstream extrusion uses a single-screw extruder with L/D 24:1 to 30:1 and a barrier screw of 2.5:1 compression ratio; pellets must be dried to ≤ 0.10% moisture at 80°C for 4–6 h in a desiccant-bed dryer with -40°C dew point before melting. The temperature profile is set from 220°C to 245°C across feed, compression, metering, and die zones, with melt temperature controlled at 245°C ± 5°C and vacuum calibration tank water held at 12–18°C to reduce ovality. Terminal product forms include 4–10 mm OD fuel vapour return tubes, evaporative emission canister purge lines, and liquid fuel return/breathing lines in light-commercial and passenger vehicle platforms.
| Standard | Scope | Test/exposure | Recorded output |
|---|---|---|---|
| SAE J2260 | Non-metallic fuel system tubing | Assembly bench validation | Permeation, burst, and cold impact after fuel ageing |
| DIN 73378 | Polyamide tubing for vehicle fuel lines | Air-oven ageing and dimensional checks | Pressure retention and dimensional stability |
| ISO 1817 | Resistance to liquids | Fuel C/D immersion, 70 h, 60°C | Volume change, mass change, and retained tensile properties |
For medium-pressure spiral-coil and straight pneumatic control tubing in truck braking and industrial automation, burst pressure retention after 1,000 h at 100°C is dominated by melt-temperature history, vacuum sizing uniformity, and residual moisture in the conditioned pellet. The governing standards are ISO 14743:2020 for thermoplastic pneumatic tubes and SAE J844 for non-metallic air brake tubing; both require non-ageing burst pressure verification and cold impact at -40°C. The formulation addition ratio remains 100 phr Hiprolon 11ESNNHL P20, with an optional silicone-based processing aid at 0.3–0.5 wt% when surface finish defects appear on 8 mm and 10 mm OD lines; no external plasticiser is added because conditioned moisture plus the PA11 backbone supplies the required flexibility. Extrusion is performed on a single-screw line with L/D 28:1, a triple-zone screw of 2.8:1 compression ratio, and a screen pack of 60/100/60 mesh to trap unmelt and raise back pressure; melt temperature is held at 232–238°C, and the die land length is set between 8 mm and 12 mm to stabilise extrudate swell before the vacuum tank. The vacuum calibration bath is maintained at 15°C with -0.6 bar vacuum; lower water temperature causes rapid skin freezing and ovality above 0.05 mm on 1.0 mm wall, while higher temperature reduces line speed and increases ink adhesion failures. Post-extrusion, coils are pressure-tested at 2.5 MPa and conditioned to equilibrium at 23°C, 50% RH per ISO 1110 before burst testing. Terminal products include coiled air brake tubing in 6 mm, 8 mm, and 10 mm OD, pneumatic automation lines, and lubricated service air lines for bus and trailer chassis.
In offshore control umbilical jacketing and subsea hydraulic control lines, PA11 is selected where the jacket must resist long-term hydrolysis in condensed water, methanol, and hydraulic oil while retaining flexural fatigue endurance after dynamic bending. The compliance environment is set by API 17E / ISO 13628-5 for subsea umbilicals, with UV weathering validated under ISO 4892-3 for topside and land-riser sections. The formulation addition ratio is 100 phr Hiprolon 11ESNNHL P20 as the base resin, with a 50% carbon-black masterbatch at 2.5 wt% for UV protection and a high-molecular-weight silicone lubricant at 0.2–0.4 wt% to reduce die deposit during high-output extrusion of 8–32 mm OD tubes. Downstream production uses a high-output single-screw extruder with L/D 30:1, grooved feed section, and static mixer downstream of the screw to homogenise melt temperature to ± 3°C before entering a spiral mandrel die. Melt temperature is capped at 235°C; operation above 250°C produces discoloration and a measurable drop in solution viscosity per ISO 307. The vacuum spray calibration system holds tube OD to ± 0.10 mm and wall thickness to ± 0.05 mm at line speeds of 8–20 m/min. Because conditioned PA11 is sensitive to process moisture, pellets are dried to ≤ 0.08% moisture at 85°C for 6 h, and regrind is limited to 15 wt% to control melt-flow shift. Terminal product types include subsea umbilical service tubes, hydraulic control lines, and methanol injection lines in production and workover systems; published data for highly specific methanol/water mixtures above 60°C is limited, requiring end-user validation.
When cable designers replace crosslinked polyethylene with PA11 in low-voltage signal and robotic drag-chain cable sheaths, the conditioned grade offers bend fatigue endurance after cyclical torsion and elimination of halogenated flame-retardant additives while preserving jacket tensile toughness at -40°C. The compliance anchors for this segment are IEC 60754-1 for halogen acid gas emission under combustion and IEC 61034 for smoke density, together with 2011/65/EU RoHS and REACH substance restrictions. Formulation addition is 100 phr Hiprolon 11ESNNHL P20 with 0.3–0.5 wt% carbon black concentrate for UV opacity and static dissipation on outer jacket surfaces; no halogenated or red-phosphorus flame retardant is added, and any colour masterbatch is limited to 2.0 wt% to avoid over-plasticisation of the jacket. Downstream processing is conducted on a crosshead extrusion line with L/D 28:1 single-screw, pressure tooling, and a tip-to-die land length matched to a drawdown ratio of 1.2:1 to 1.5:1. Melt temperature is maintained at 238–243°C, and the cooling trough water temperature is set at 30°C to minimise frozen-in stress while preventing conductor displacement. Operating boundary: continuous service above 125°C is not recommended for conditioned PA11 jackets because oxidative embrittlement reduces elongation; burial or direct UV exposure of natural jackets is also excluded unless UV stabilisation is formulated. Terminal product forms include low-voltage sensor cable jackets, robotic drag-chain cable sheaths, and electric vehicle charging control pilot cable jackets, with outer diameters from 4 mm to 18 mm.
Operating at service pressures up to 10 bar and soil temperatures from -20°C to 40°C, natural gas distribution piping manufactured from Hiprolon 11ESNNHL P20 is qualified under ISO 16486-1 for unplasticized polyamide gas supply systems, where conditioned PA11 reduces brittle fracture susceptibility after sustained exposure to trace hydrocarbon condensates. The formulation addition ratio is 100 phr virgin Hiprolon 11ESNNHL P20 base resin, with a 50% carbon-black masterbatch added at 2.0–2.5 wt% for outdoor storage stability and UV resistance; no plasticiser is used because pressure pipe standards require creep rupture resistance without long-term tensile modulus loss. Pipe extrusion is carried out on a grooved-feed single-screw extruder with L/D 30:1 and barrier screw, melt temperature controlled at 225–235°C, and a pipe die with spiral mandrel distribution; downstream vacuum calibration at -0.5 bar and spray cooling at 18°C set the final outside diameter and wall thickness. Drying before extrusion is mandatory at 80°C for 4–6 h to ≤ 0.10% moisture, and regrind is restricted to 10 wt% to preserve melt-flow stability. Terminal product types include gas distribution main and service pipes in diameter classes from 16 mm to 110 mm, transition fittings, and electrofusion couplers for buried distribution networks.
For Class VI medical catheter shaft components and introducer sheaths, Hiprolon 11ESNNHL P20 is processed in a plasticiser-free formulation where the conditioned state prevents the stiff, brittle feel that otherwise complicates tip flaring and over-moulded hub assembly. The biocompatibility data package is aligned to USP Class VI and ISO 10993-1:2018, with manufacturing quality system controls under ISO 13485:2016. The formulation addition ratio is 100 phr Hiprolon 11ESNNHL P20 as the base polymer, with barium sulfate radiopacifier added at 10–20 wt% when fluoroscopic visibility is required for peripheral vascular placements, and an organosilane surface lubricant at 0.2–0.5 wt% to reduce tack on the extrusion die. Downstream production uses a medical-grade single-screw extruder with L/D 24:1, screw compression ratio 2.5:1, and a closed-loop vacuum sizing tank with 10°C water; melt temperature is held at 228–232°C, and line speed is adjusted to maintain a drawdown ratio of 1.3:1 for consistent column strength. Post-extrusion annealing is performed at 80°C for 2 h in a dry-air oven to relax orientation, followed by ethylene oxide sterilisation validation; the conditioned equilibrium moisture content at 50% RH must be restored before packaging to prevent dimensional shift. Terminal product types include multi-durometer catheter shaft segments, introducer sheath bodies, and fluid drainage cannulae produced in diameters from 2.5 mm to 7.0 mm.
Competitive Suzhou Hipro Polymers Hiprolon 11ESNNHL P20 Nylon, conditioned prices that fit your budget—flexible terms and customized quotes for every order.
For samples, pricing, or more information, please contact us at +8615365186327 or mail to admin@ascent-chem.com.
We will respond to you as soon as possible.
Tel: +8615365186327
Email: admin@ascent-chem.com
Flexible payment, competitive price, premium service - Inquire now!
Suzhou Hipro Polymers supplies Hiprolon 11ESNNHL P20 as a plasticised polyamide 11 extrusion compound in natural pellet form. The grade designation identifies the polyamide 11 family; the suffix structure is consistent with an extrusion, natural, heat- and light-stabilised, semi-rigid plasticised composition, with P20 indicating the plasticiser level in the supplier’s nomenclature. The product is described as “conditioned” because mechanical data are generated on specimens equilibrated at 23°C and 50% RH in accordance with ISO 291:2008 atmosphere A or ASTM D618-21 Procedure A. The suffix decoding and current release values should be confirmed against the supplier’s technical data sheet and certificate of analysis.
Conditioning is not a cosmetic data adjustment. Polyamide 11 absorbs water more slowly than PA6 or PA66, but absorbed water acts as a secondary plasticiser and shifts stiffness, yield stress, and impact compliance. For tube, hose, and cable jacket service in humid air, conditioned values are the relevant design basis; dry-as-moulded data overstate load-bearing stiffness. Under equilibrium moisture, plasticised PA11 P20 compounds of this class typically show a tensile modulus of 600–900 MPa and tensile yield stress of 25–32 MPa when tested under ISO 527-1:2019 and ISO 527-2:2012.
| Property | Test standard | Value |
|---|---|---|
| Density | ISO 1183-1:2019 | 1.03–1.05 g/cm³ |
| Tensile stress at yield | ISO 527-1:2019/ISO 527-2:2012 | 25–32 MPa |
| Nominal tensile strain at break | ISO 527-1:2019/ISO 527-2:2012 | >250% |
| Flexural modulus | ISO 178:2019 | 600–900 MPa |
| Notched Charpy impact at 23°C | ISO 179-1:2020 | no break or >50 kJ/m² |
| Melting peak | ISO 11357-3:2018 | 185–190°C |
| Vicat softening temperature, A50 | ISO 306:2022 | 150–165°C |
| Melt volume-flow rate, 235°C/2.16 kg | ISO 1133-1:2022 | 5–15 cm³/10 min |
| Water absorption, 24 h at 23°C | ISO 62:2008 | 0.25–0.35% |
| Saturation water uptake | ISO 62:2008 | 1.8–2.0% |
The property envelope above is class-level data for product selection and is not a substitute for the supplier’s current certificate of analysis. Where published product-specific data for this exact grade are limited, the current lot data govern.
Polyamide 11 P20 sits between plasticised PA12 and unplasticised PA11 in melt temperature and water uptake. PA12 offers slightly lower density and lower saturation moisture absorption, with a melting peak near 178°C; polyamide 11 melts at approximately 189°C. Both polyamides exhibit far lower saturation moisture absorption than PA6 at 9.5% and PA66 at 8.5% under ISO 62:2008. That difference is the basis for specifying PA11 or PA12 in dimensionally stable tubing and cable jackets exposed to humidity cycling.
| Property | Hiprolon 11ESNNHL P20 PA11-P20 |
PA12-P20 | PA6 | PA66 |
|---|---|---|---|---|
| Density, ISO 1183-1:2019 | 1.04 g/cm³ | 1.01 g/cm³ | 1.14 g/cm³ | 1.14 g/cm³ |
| Melting peak, ISO 11357-3:2018 | 189°C | 178°C | 220°C | 260°C |
| Water absorption, 24 h, ISO 62:2008 | 0.3% | 0.25% | 3.0% | 2.5% |
| Saturation water uptake, ISO 62:2008 | 1.9% | 1.5% | 9.5% | 8.5% |
| Conditioned tensile modulus, ISO 527-1:2019 | 700 MPa | 600 MPa | 1000 MPa | 1300 MPa |
| Notched Charpy at 23°C, ISO 179-1:2020 | no break | no break | 8–12 kJ/m² | 7–10 kJ/m² |
Relative to unplasticised PA11, the P20 modification lowers conditioned flexural modulus and provides elongation at break above 250%. The trade-off is a reduction in continuous load-bearing stiffness and Vicat softening temperature. Relative to PA12-P20, PA11-P20 can tolerate a slightly higher melt temperature and shows similar low-temperature impact and moisture resistance; the selection between PA11 and PA12 is often governed by bio-based content requirements, long-term thermo-oxidative stabilisation after ageing, and supplier-specific additive packages.
End-use positions for this feedstock include air-brake tubing, coiled pneumatic line, hydraulic hose jackets, and cable sheathing. In air-brake tube, qualification includes burst and low-temperature flexibility after conditioning; relevant practice includes testing under SAE J844 or ISO 7628. The low water uptake reduces dimensional change from humidity cycling and helps maintain connector retention. Because this is a high-viscosity extrusion grade, injection moulding is not the intended process; using it in injection moulding typically raises screw-recovery torque, increases melt residence time, and produces short shots in thin-wall tools.
In flexible hose and conduit, the plasticised PA11 response lowers dynamic bending stress and improves resistance to kink. However, permeation of fuels, alcohols, or refrigerants is not governed by polyamide type alone; it must be measured on the finished wall construction under the applicable fluid-contact standard rather than inferred from tensile data. Crush resistance and abrasion also depend on wall thickness and reinforcement geometry, not solely on polymer hardness.
Before extrusion, pellets should be dried to below 0.10% moisture by mass using a desiccant dryer with a dew point at or below −40°C. Typical starting conditions are 80–90°C for 4–6 h, but air flow and bed depth must be checked; time alone is not a drying specification. Moisture measurement by Karl Fischer titration under ISO 15512:2019 or ASTM D6869-03(2021) is used to confirm the resin state. Moisture above 0.15% at the feed throat produces hydrolytic chain scission at melt temperature, visible as viscosity loss and reduced head pressure. Over-drying below 0.02% is also undesirable because it can increase melt viscosity, raise die pressure, and shift screw torque upward.
For single-screw extruders with L/D 24:1–30:1 and compression ratio 2.5:1–3.0:1, feed throat water temperature is commonly maintained at 40–70°C to prevent premature pellet melting and bridging. Barrel setpoints increase from 190°C at the feed to 220–230°C at the metering section; adapter and die are typically held at 220–235°C. Melt temperature measured at the head should remain between 220°C and 240°C. Sustained melt temperature above 250°C accelerates thermo-oxidative degradation; temperatures below 195°C produce incomplete melting, high screw torque, and surface melt fracture.
Capillary rheometry of PA11-P20 compounds at 230°C typically shows a power-law index near 0.5–0.7 over shear rates of 100–1000 s⁻¹. Because the polymer is plasticised, apparent viscosity is lower than that of unplasticised PA11 extrusion grades at equivalent molecular weight. This reduces screw torque but also increases sensitivity to die swell; die land length must be sufficient to control tubing dimensions. Screen-pack pressure drop is normally modest at start-up, but a blocked 24/48/24 mesh pack can create local shear heating and raise melt temperature above the barrel setpoint without a corresponding change in thermocouple reading.
Production-scale lines with grooved barrels can overfeed PA11-P20 at start-up when the downstream die is cold. The resulting head-pressure transient commonly exceeds 30 MPa and can shear the polymer, producing gels and rough tubing surfaces. Melt pressure should be ramped with the breaker plate and screen pack heated; if a pressure spike occurs, raising die temperature within the specified window is safer than increasing screw speed. Long melt-transfer lines between extruder and die should be minimised because stagnant melt creates a stratified residence-time distribution and visible surface degradation.
If feedstock is processed at moisture above 0.20%, hydrolytic viscosity loss may not appear immediately as surface roughness; it can appear later as low burst strength, eccentric wall thickness, and a higher apparent melt-flow rate when samples are retested under ISO 1133-1:2022. Moisture-induced microvoids become visible as silver streaks at the die lip. The corrective action is additional drying, not increasing barrel temperature; increasing temperature in the presence of excess water accelerates hydrolysis rather than removing it.
Melt residence time above 240°C should be kept below 10–15 min for this class. In coextrusion or multi-layer die lines where the PA11 layer may be parked at temperature, heat-stabilised chemistry delays degradation but does not eliminate it. The line should be purged with a low-viscosity purge compound before shutdown; purge material should not be mixed into prime material. Blending with PA6 or PA66 regrind is not recommended because the short-chain polyamides require higher processing temperatures and absorb more water, and their presence can reduce ductility or create delamination in multi-layer structures. Blending with unplasticised PA11 changes the plasticiser balance and should not be performed without determining the final plasticiser content and tensile response under ISO 527-1:2019.
Storage of unopened bags is conventionally maintained below 30°C and below 70% RH. Bags that have been open more than 24 h in humid air should be re-dried before use, even if the pellets do not appear wet. This is not a convenience threshold; it is the moisture-control boundary for consistent extrusion of a low-water-uptake but hydrolysis-sensitive polyamide.
