| HS Code | 974424 |
| Product | MARPOL COPP 10.2.0 PP Copolymer |
| Polymer Type | Polypropylene Copolymer |
| Melt Flow Rate 230 C 2 16 Kg | 10 g/10 min |
| Density | 0.90 g/cm³ |
| Tensile Strength At Yield | 28 MPa |
| Elongation At Break | >100% |
| Flexural Modulus | 1200 MPa |
| Izod Impact Strength 23 C | 5 kJ/m² |
| Melting Point | 165 °C |
| Heat Deflection Temperature 0 45 Mpa | 95 °C |
| Vicat Softening Temperature | 152 °C |
| Rockwell Hardness | R85 |
As an accredited MARPOL COPP 10.2.0 PP Copolymer factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | MARPOL COPP 10.2.0 PP Copolymer supplied in 25 kg sealed bags, with proper labeling for safe handling and storage. |
| Container Loading (20′ FCL) | Load 20′ FCL with MARPOL COPP 10.2.0 PP Copolymer in clean, dry containers, secure pallets, avoid contamination and moisture. |
| Shipping | MARPOL COPP 10.2.0 PP Copolymer ships as an environmentally hazardous substance, solid, n.o.s. (polypropylene copolymer), UN 3077, Class 9, Packing Group III. It is a marine pollutant and must be transported in approved packaging, marked and labeled accordingly, with proper documentation and placarding as required. |
| Storage | Store MARPOL COPP 10.2.0 PP Copolymer in a cool, dry, well-ventilated area, away from direct sunlight, heat, and ignition sources. Keep containers tightly sealed to prevent moisture absorption and contamination. Avoid stacking excessively high to prevent deformation. Use within a reasonable timeframe to ensure optimal properties. |
| Shelf Life | Shelf life is 12 months from manufacture date when stored in original, unopened packaging in a cool, dry area. |
Automotive interior programmes that call for door panel lower substrates, seat side shields, and centre console carrier sections can accept a medium-flow heterophasic polypropylene copolymer when low-temperature ductility is specified at −35 °C or lower and the part is intentionally opaque. MARPOL COPP 10.2.0 is a PP impact copolymer whose designation indicates a nominal melt flow rate of 10 g/10 min under ISO 1133-1:2022 at 230 °C/2.16 kg. The ethylene–propylene rubber phase content and the melt viscosity are lot-specific; the converter must release each batch against the supplier certificate of analysis before production. Door panel lower inserts and map pocket attachments are usually injection moulded in tools with hot-runner valve gates. A rising barrel profile from 190 °C at the feed throat to 230 °C at the metering zone keeps the melt at the nozzle between 210 °C and 240 °C. Mould surface temperatures of 20 °C to 45 °C reproduce grain textures from the cavity surface, but raising the mould temperature above 60 °C can extend cooling time beyond 55 s for a 2.5 mm nominal wall and lowers production output in high-cavitation tools. Injection pressure typically ranges from 80 MPa to 100 MPa, with switch-over set after 95% of the shot volume by screw position. Hold pressure is applied in 10 MPa increments to reduce sink marks over bosses with diameter greater than 8 mm. Injection speeds below 40 mm/s produce hesitation lines in ribs deeper than 3.0 mm; speeds above 90 mm/s increase jetting risk at gates below 1.2 mm.
Gate design in multi-cavity tools influences the low-temperature impact of grain-finished surfaces. Valve gate diameters below 1.5 mm produce high shear rates above 10,000 s-1 and can orient the rubber phase parallel to the flow direction, reducing ductility perpendicular to flow. If the part has a side wall height above 80 mm, a sequential valve gate programme is preferred to move the weld line into a low-stress area. Back pressure is set between 5 MPa and 10 MPa to homogenise additive distribution without overheating the melt; higher back pressure reduces screw recovery but improves colour dispersion. Compliance for cockpit interior parts is assessed under VDA 277:2018 for total carbon emission and DIN 75201:2019 for fogging; published data for MARPOL COPP 10.2.0 under these methods is limited and should be requested for each lot. Scratch resistance on grained surfaces is validated under PV 3952 with a 10 N tip after 10 cycles; if scratch resistance is required, a siloxane masterbatch at 0.5 wt% to 1.0 wt% is used. A typical modification for black interior parts is 2.0 wt% carbon black masterbatch, 0.3 wt% to 0.5 wt% hindered amine light stabilizer, and 0.5 wt% to 1.0 wt% of an ultra-high-molecular-weight siloxane masterbatch. Low-temperature impact of finished parts is checked under ISO 179-1/1eA at −30 °C; weld lines at speaker grille bosses should retain at least 60% of the bulk Charpy impact value. The terminal parts are assembled with metal clip towers moulded from the same resin; clip retention force is tested under ISO 8374 for snap-fit assemblies.
The mouldability of an opaque PP impact copolymer with a nominal 10 g/10 min MFR is acceptable for thin-wall containers only when the flow length-to-thickness ratio is kept below 250:1. At wall thicknesses of 0.8 mm to 1.2 mm, the injection speed must be raised to 120 mm/s to 180 mm/s to prevent premature freeze-off of the flow front. Melt temperatures are held at 235 °C to 245 °C at the nozzle; above 250 °C, the heterophasic rubber phase begins to degrade and food-contact extractives increase. Mould temperatures of 20 °C to 40 °C are common for fast cycle times, but cold mould walls increase moulded-in stress in corner radii below 1.5 mm. When cavity pressure exceeds 90 MPa, clamp force must be adjusted based on projected area and melt compressibility; production tools with hydraulic clamping typically require 4 kN/cm² to 6 kN/cm² on the projected part area. Food-contact compliance for this grade must be verified under EU No 10/2011 and FDA 21 CFR 177.1520. The converter is responsible for confirming overall migration below 10 mg/dm² in the intended simulant and for checking the finished article under any applicable national regulation. The ratio of processing additives is kept low: 0.1 wt% to 0.3 wt% antioxidant blend, 0.05 wt% to 0.15 wt% acid scavenger, and 0.2 wt% to 0.5 wt% slip/antiblock masterbatch. Reusable food storage containers, opaque lunch boxes, and container bases can be produced from this grade; transparent containers are excluded because the copolymer is heterophasic and lacks clarity. Microwave reheating of containers at 100 °C is limited by distortion of flat bases with unsupported spans above 200 mm.
| Regulation / standard | Requirement | Test condition / limit |
|---|---|---|
| EU No 10/2011 | Overall migration | 10 mg/dm² in 10 days at 40 °C |
| FDA 21 CFR 177.1520 | Olefin polymer for food contact | Extraction limits specified in the regulation |
| ISO 1133-1:2022 | Melt flow rate | 230 °C/2.16 kg |
In lead-acid battery container production, MARPOL COPP 10.2.0 is processed at melt temperatures of 200 °C to 230 °C, which is lower than the window used for thin-wall packaging. The lower melt temperature preserves molecular weight and reduces the formation of extractable residues that can interact with sulfuric acid. Mould temperature is held at 15 °C to 30 °C for cycle-time control, but shrinkage along the container rim must be compensated by a hold pressure of 60 MPa to 80 MPa. Wall thicknesses from 3.0 mm to 5.0 mm require hold times of 20 s to 30 s to seal the gate and prevent vacuum voids in the base. Large battery containers above 2 kg shot weight are sometimes produced by injection compression moulding to reduce orientation and improve flatness of the base. The compression stroke is set at 2 mm to 4 mm after filling 90% of the cavity; this reduces clamp force requirement and minimises warpage. Weld lines around terminal bushings and handle bosses are critical; increasing local wall thickness by 0.5 mm to 1.0 mm and adding flow leaders reduces weld-line depth. Flammability of the unfilled grade is generally classed as HB under UL 94 at 1.5 mm and 3.0 mm; V-0 is not achievable without a separate flame-retardant formulation. Acid resistance is assessed under ISO 175 by immersion in 30% sulfuric acid at 60 °C for 90 days; mass change should remain below 1%. Typical black battery case compounds contain 1.5 wt% to 2.5 wt% carbon black masterbatch and 0.2 wt% antioxidant. Finished containers are closed by hot-plate welding of the lid at 220 °C to 240 °C, and the welded seam is tested for burst pressure according to the relevant OEM specification.
Twin-screw compounding of MARPOL COPP 10.2.0 with talc or short glass fibre follows a different thermal profile than direct injection moulding. In a 75 mm corotating twin-screw extruder with an L/D ratio of 40:1, the polymer is starve-fed at 200 °C to 210 °C, while talc is introduced through a side feeder located 16D to 20D upstream of the die. Talc loadings of 20 wt% to 30 wt% reduce the melt flow rate from 10 g/10 min to 6 g/10 min to 8 g/10 min and raise flexural modulus from approximately 1,200 MPa to 2,100 MPa under ISO 178:2019. The torque rise is not linear; if the talc particle size D50 is below 2 µm, screw torque can exceed 90% of the drive rating at 500 rpm, and melt temperature at the die increases by 15 °C solely from viscous dissipation. Vacuum venting below 0.03 MPa absolute pressure is necessary; higher vent pressure retains moisture and produces splay in subsequent injection moulding.
Formulation ratios for mineral-filled compounds are typically 62 wt% to 82 wt% base resin, 10 wt% to 30 wt% talc, 5 wt% to 15 wt% ethylene–propylene impact modifier, 0.1 wt% to 0.3 wt% primary antioxidant, 0.1 wt% to 0.3 wt% secondary antioxidant, and 0.05 wt% to 0.15 wt% calcium stearate. For glass-filled grades, 1.0 wt% to 2.0 wt% maleic anhydride grafted PP is added when glass fibre content exceeds 10 wt%. Tensile strength at break for a 20 wt% short glass compound is typically between 50 MPa and 60 MPa under ISO 527-2:2012; published data for MARPOL COPP 10.2.0 in glass-filled form is limited and must be generated on the production compounding line. The screw configuration and side-feeder position affect fibre length retention by approximately ±20%, so a laboratory mixer cannot substitute for production validation. These compounds feed downstream parts such as appliance brackets, automotive air filter housings, fan shrouds, and washing machine tub components.
| Formulation | Talc content | Flexural modulus under ISO 178:2019 |
|---|---|---|
| Unfilled base resin | 0 wt% | 1,200 MPa to 1,400 MPa |
| Mineral-filled compound | 10 wt% | 1,600 MPa to 1,800 MPa |
| Mineral-filled compound | 20 wt% | 1,900 MPa to 2,100 MPa |
Sheet extrusion of MARPOL COPP 10.2.0 for refrigerator liner stock requires control of melt strength because a nominal 10 g/10 min MFR is at the upper practical limit for thermoforming. The resin is extruded on a 90 mm single-screw sheet line with an L/D ratio of 30:1, using a barrel profile from 200 °C to 230 °C and a die temperature of 220 °C to 230 °C. Sheet thicknesses from 1.0 mm to 3.0 mm are cooled on polishing rolls at 70 °C to 90 °C. If the sheet is intended for deep-draw liners with draw ratios above 1.5:1, sag becomes visible in the oven at sheet surface temperatures above 160 °C. A blend of 10 wt% to 30 wt% high melt strength PP is used in such cases to restore sag resistance; published data for MARPOL COPP 10.2.0 in deep-draw thermoforming is limited. Shallow trays and panels with draw depths below 150 mm can be produced without modification. Food-contact liners require compliance with EU No 10/2011 and FDA 21 CFR 177.1520; no additional plasticizer is used. Terminal applications include chemical-resistant industrial packaging trays, appliance panels, and refrigerator door liners where the olefin surface resists condensation-related stress cracking.
Washing machine base frames and dryer air ducts are injection moulded from mineral-filled PP impact copolymer to combine hot detergent resistance with low-temperature transport impact. The compound for these parts typically contains 15 wt% to 20 wt% talc, 0.2 wt% antioxidant, and 0.5 wt% to 1.0 wt% carbon black masterbatch. Melt temperatures are maintained from 220 °C to 240 °C; below 200 °C, the talc-filled melt shows uneven flow and can produce tiger stripes at flow lengths above 300 mm. Mould temperatures should stay above 30 °C to reduce cold slugs and to improve weld line strength at pump mounting bosses. Weld line tensile retention is assessed under ISO 527-2:2012; the acceptance criterion is usually 70% of the bulk tensile yield strength. Long-term thermal stability is evaluated under IEC 60216 or UL 746B, but published data for MARPOL COPP 10.2.0 with this filler package is limited. Hot detergent exposure is simulated at 90 °C in 0.5 wt% sodium carbonate and 0.5 wt% sodium dodecylbenzene sulfonate solution for 500 h; surface gloss change is measured under ISO 2813 at a 60° angle. Screw bosses for self-tapping screws use a pilot hole diameter of 0.75 times the screw nominal diameter to reduce hoop stress cracking. The final parts are assembled into washing machine bases, dryer duct housings, and access panels where vibration fatigue and detergent exposure occur simultaneously.
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Material classification for MARPOL COPP 10.2.0 PP Copolymer should begin with the supplier’s data block, because the generic term “PP copolymer” alone does not distinguish a heterophasic impact copolymer from a random copolymer. The numeric string 10.2.0 is consistent with a nominal melt mass-flow rate of 10.2 g/10 min when measured at 230 °C under a 2.16 kg piston load in accordance with ISO 1133-1:2022; the trailing zero may encode an internal stabilization level or generation marker rather than a standardized data-block character. For this technical description, the grade is interpreted as an unfilled medium-flow heterophasic impact copolymer, which is the common downstream interpretation for a PP copolymer positioned for injection moulding and extrusion. If optical clarity or low seal-initiation temperature is required, the converter must verify whether the actual product is a random copolymer instead.
Two property-shaping parameters are typically controlled in this material class: total ethylene content and dispersion of the rubber phase. The propylene matrix may contain limited ethylene in the crystalline phase, while the dispersed ethylene–propylene rubber domains often contain 30% to 50% ethylene by mass. This structural arrangement lowers the brittle point relative to a comparable PP homopolymer and distinguishes the product from random copolymers, whose lower ethylene content improves contact clarity but limits sub-ambient energy absorption. The 10.2 g/10 min melt flow value further separates the grade from low-flow impact copolymers used in thick-wall profiles and high-flow grades used for multi-cavity thin-wall packaging. Published certificate data for this exact grade are limited outside the supplier’s controlled documentation, so the numeric ranges included here are literature-derived windows for unfilled medium-flow PP impact copolymers and are not warranted as lot-specific values.
The melt flow rate directly affects injection pressure, melt cushion stability, and orientation. A 10.2 g/10 min medium-flow grade fills thin sections more readily than a 3 g/10 min to 5 g/10 min impact copolymer, but it retains enough molecular weight to provide better notched impact than a 25 g/10 min to 35 g/10 min controlled-rheology product. In published spiral-flow studies of comparable unfilled impact copolymers, flow length at 2 mm wall thickness has been reported between 800 mm and 1,050 mm at 80 MPa injection pressure; product-specific spiral-flow data are not available. The 10.2 value is positioned for converters that need faster cycle times than a low-flow block copolymer without accepting the property losses associated with high-flow grades.
The following comparative windows are normalized to standard test methods and represent literature ranges for unfilled materials, not manufacturer-certified data for MARPOL COPP 10.2.0.
| Polymer class | MFR at 230 °C/2.16 kg | Tensile yield stress | Flexural modulus | Charpy notched impact at 23 °C | Low-temperature impact behavior |
|---|---|---|---|---|---|
| PP homopolymer | 8–12 g/10 min | 32–38 MPa | 1400–1800 MPa | 3–5 kJ/m² | Brittle at −20 °C unless modified |
| PP random copolymer | 8–12 g/10 min | 24–28 MPa | 950–1200 MPa | 4–8 kJ/m² | Limited energy absorption at −20 °C |
| PP impact copolymer, MARPOL COPP 10.2.0 class | 8–12 g/10 min | 24–30 MPa | 1100–1500 MPa | 6–15 kJ/m² | Ductile crack arrest at −20 °C in moderate wall sections |
| High-flow PP impact copolymer | 25–35 g/10 min | 22–28 MPa | 1000–1350 MPa | 4–9 kJ/m² | Reduced low-temperature toughness |
Test methods referenced for the table are ISO 527-2:2012 for tensile yield stress, ISO 178:2019 for flexural modulus, and ISO 179-1/1eA for Charpy notched impact. The comparative differences are most visible in notched impact testing: a homopolymer with similar MFR often exhibits Charpy values below 5 kJ/m² at 23 °C and fails in a brittle mode at −20 °C, whereas an impact copolymer may absorb 10 kJ/m² or more at ambient conditions depending on rubber content. Random copolymers should be selected when seal initiation below 115 °C or high contact clarity is required; impact copolymer should be selected when low-temperature crack arrest and high modulus are more important than transparency.
On a 1500 kN hydraulic injection moulding line using a 60 mm three-zone general-purpose screw with a check-ring non-return valve and a compression ratio of 2.2:1 to 2.5:1, the melt temperature profile for this MFR class is typically set from 210 °C in the rear zone to 250 °C at the nozzle. The mould temperature is held between 30 °C and 50 °C; below 25 °C, frozen-layer growth can generate visible flow lines and anisotropic shrinkage, while above 60 °C cycle time increases without proportional toughness gain. Hold pressure is applied at 60% to 80% of the injection peak, with a hold time of 1.0 s to 1.5 s per mm of nominal wall thickness. Back pressure is maintained between 0.5 MPa and 1.5 MPa, and screw retraction speed is limited to avoid air entrapment.
Capillary rheometry under ISO 11443:2021 for comparable medium-flow impact copolymers at 230 °C gives apparent shear viscosities of 120 Pa·s to 180 Pa·s at 1000 s⁻¹ and 40 Pa·s to 70 Pa·s at 5000 s⁻¹. These values are method-sensitive and should not be substituted for product-specific Cross-WLF or Carreau parameters in mould-filling simulation. Product-specific rheological data should be generated on a capillary rheometer with a 1 mm die diameter, 20 mm die length, and 180° entry angle.
Moisture uptake in unfilled polypropylene impact copolymer is normally low. If sacks are opened at relative humidity above 60% or surface condensation occurs, a dehumidifying dryer should be used at 80 °C for 2 h to 3 h with a dew point below −20 °C. Residence time above 250 °C should not exceed 15 min because chain scission will reduce Charpy notched impact strength and can shift the melt flow rate above the specified window. For sheet or profile extrusion, a single-screw extruder with L/D 30:1 to 34:1, a barrier screw, and a screen pack of 60/80/60 mesh is appropriate; die melt temperature should not exceed 245 °C to limit gel accumulation and yellowing.
Shrinkage in unfilled PP impact copolymers is generally anisotropic and ranges from 1.2% to 1.8% according to ISO 294-4:2018 after 24 h at 23 °C, with lower values along the flow direction and higher values across flow. Mould cooling circuits should be balanced to reduce warpage in flat parts, and gate location should be placed to avoid long flow paths that freeze before packing.
Candidate end-use evaluations for MARPOL COPP 10.2.0 PP Copolymer include appliance housings, automotive interior trims, crates, totes, and industrial containers, because the heterophasic impact structure maintains a lower brittle-to-ductile transition than unfilled homopolymer while retaining adequate flexural stiffness. Notched Charpy testing according to ISO 179-1/1eA after conditioning for 48 h at 23 °C and 50% relative humidity is used to compare batches. Low-temperature tests are performed after conditioning at −20 °C in a calibrated freezer; literature ranges for unfilled medium-flow impact copolymers are 6 kJ/m² to 15 kJ/m² at 23 °C and 2.5 kJ/m² to 6.0 kJ/m² at −20 °C. Product-specific certificate data must be obtained before part qualification.
The rubber-phase morphology controls the brittle-to-ductile transition. After preferential etching, scanning electron microscopy of comparable impact copolymers typically reveals dispersed rubber particles with diameters of 0.2 μm to 2.0 μm. Larger rubber domains increase impact resistance and reduce surface gloss, while smaller domains improve surface appearance and flexural modulus at the expense of low-temperature crack arrest. A converter should therefore request the manufacturer’s lot-to-lot impact-property control limits when qualifying the grade for frozen-food containers or automotive load-floor parts.
Multi-axial impact testing under ISO 6603-2 may be more relevant for crates and large containers than notched Charpy because it measures energy absorption under biaxial loading. Published data for this specific configuration is limited; if the part must withstand drop loads at −20 °C, a full-scale component test is required. Creep is another boundary: unfilled PP impact copolymer should not be used for sustained load-bearing service above 80 °C unless creep modulus data under ISO 899-1:2017 are available for the wall thickness and loading duration expected in service.
Regulatory classification for MARPOL COPP 10.2.0 PP Copolymer depends on the additive package, catalyst residues, and conversion history. For European food-contact applications, users should request lot-specific documentation against Regulation (EU) No 10/2011, including overall migration measured by EN 1186 and, where applicable, specific migration methods under EN 13130. The polypropylene type may be covered as a permitted polyolefin, but additives such as phenolic antioxidants, phosphites, acid scavengers, and nucleating agents have individual specific migration limits or restrictions. The grade should not be assumed compliant for food contact without an explicit supplier statement.
| Evaluation | Referenced method or regulation | Typical acceptance basis | Product-specific status |
|---|---|---|---|
| Melt mass-flow rate | ISO 1133-1:2022 | 10.2 g/10 min nominal; upper and lower lot limits per supplier | Confirm on certificate of analysis |
| Tensile yield stress and elongation | ISO 527-2:2012 | Class window 24–30 MPa; elongation at yield 4–8% | Product-specific data limited outside datasheet |
| Flexural modulus | ISO 178:2019 | 1100–1500 MPa for medium-flow impact copolymer class | Supplier datasheet required |
| Charpy notched impact | ISO 179-1/1eA | 6–15 kJ/m² at 23 °C; 2.5–6.0 kJ/m² at −20 °C | Supplier lot data required |
| Food-contact migration | EU 10/2011, EN 1186, EN 13130 | Overall migration below 10 mg/dm²; specific migration limits by additive | Not assumed; supplier statement required |
| Restricted substances | RoHS 2011/65/EU as amended by (EU) 2015/863 | Lead, cadmium, mercury, chromium VI, PBB, and PBDE each ≤0.1% by weight in homogeneous material | Verify with supplier; unfilled PP usually compliant |
| REACH SVHC | Regulation (EC) No 1907/2006 | Supplied mixture or article must not contain SVHC above 0.1% w/w unless communicated | Lot-specific additive disclosure required |
Thermal processing above 260 °C can generate low concentrations of formaldehyde, acrolein, and other volatile degradation products; high-output lines should use local exhaust ventilation and maintain melt temperature control. Emissions from moulded parts for automotive interiors are commonly assessed by VDA 277, with total VOC target often below 100 μg C/g; whether MARPOL COPP 10.2.0 meets this target depends on stabilizer loading, monomer removal, and melt residence time. Published data for this specific grade are limited.
The base stabilization package in a commercial impact copolymer protects the melt during compounding and processing, but it does not automatically confer long-term heat or UV resistance. Oxidative induction time can be measured by differential scanning calorimetry under ISO 11357-6:2018 at 200 °C; comparable medium-flow impact copolymers often show isothermal OIT values between 20 min and 60 min. A decreasing OIT across re-extrusion cycles indicates stabilizer consumption and is a practical method for monitoring regrind levels. For outdoor weatherability, a hindered amine light stabilizer package is necessary; the unmodified grade should not be used in continuous UV and condensation environments unless a weatherable formulation is sourced.
Chemical incompatibility should be evaluated before adding masterbatches. Acidic or copper-based additives can accelerate thermo-oxidative degradation, and certain halogenated flame retardants may require acid-scavenger adjustment. Lot-to-lot variance in regrind ratio is a more common production bottleneck: adding more than 20% regrind can reduce Charpy notched impact and change melt flow rate, especially if the regrind has been exposed to multiple heat histories. A production trial should compare virgin, 10% regrind, and 20% regrind batches using ISO 527-2:2012, ISO 178:2019, and ISO 179-1/1eA before fixing the recycling allowance.
For applications requiring long-term heat exposure, oven aging at 120 °C for 1000 h followed by tensile testing according to ISO 527-2:2012 is a practical screening method. Unfilled PP impact copolymers without special heat stabilization can fall below 70% tensile strength retention after this exposure depending on stabilizer type and sample thickness. The maximum service temperature should therefore be defined by the required lifetime and mechanical safety factor, not solely by the heat deflection temperature value under ISO 75-2:2013 Method B.
