| HS Code | 887206 |
| Melt Flow Rate 230 C 2 16 Kg | 15 g/10 min |
| Density | 0.90 g/cm³ |
| Melting Point | 145 °C |
| Vicat Softening Point | 120 °C |
| Tensile Strength At Yield | 28 MPa |
| Elongation At Yield | 12 % |
| Flexural Modulus | 850 MPa |
| Notched Izod Impact At 23 C | 4.5 kJ/m² |
| Heat Deflection Temperature | 90 °C |
| Haze Film | 1.0 % |
| Gloss | 95 |
| Seal Initiation Temperature | 110 °C |
As an accredited Exceed™ PP7815E1 PP Copolymer factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Supplied as 25 kg sealed paper bags of uniform pellets, ensuring clean handling and consistent quality. |
| Container Loading (20′ FCL) | 20′ FCL loaded with Exceed™ PP7815E1 PP Copolymer pellets in sealed bags, ensuring safe, efficient transport. |
| Shipping | Exceed™ PP7815E1 PP Copolymer ships as non-hazardous solid pellets in 25 kg bags, octabins, or bulk trucks/railcars. Protect from moisture, heat, and sunlight. Avoid dust accumulation and static discharge. Use clean, dry handling equipment to prevent contamination. No special transport classification required under standard shipping regulations. |
| Storage | Store Exceed™ PP7815E1 PP Copolymer in a cool, dry, well-ventilated area, protected from direct sunlight and moisture. Keep containers tightly sealed to prevent contamination and water absorption. Avoid exposure to excessive heat or open flames, as polymer pellets can be combustible. Properly label and segregate from incompatible materials. No special storage requirements beyond standard polymer handling. |
| Shelf Life | Shelf life is 2 years from date of shipment when stored in dry, cool conditions away from direct sunlight. |
Injection moulding of polypropylene copolymer components for automotive interior systems operating within the cabin temperature envelope of −30 °C to +85 °C demands a precise balance between low-temperature ductility and high-stiffness retention at the upper service limit. Exceed™ PP7815E1, characterized by a melt mass-flow rate of 15 g/10 min (ISO 1133-1:2022, 230 °C/2.16 kg), a flexural modulus of 1 100 MPa (ISO 178:2019), and a notched Charpy impact strength exceeding 15 kJ/m² at 23 °C (ISO 179-1:2023), is frequently specified for Class A and Class B surface parts where the legacy use of compounded mineral-filled grades introduced weight and process-warpage constraints. The compliance matrix for this sector is driven by OEM-specific emission and odour protocols: thermal desorption analysis per VDA 278 typically yields VOC values below 50 µg/g and FOG condensation below 250 µg/g, while odour evaluation according to VDA 270 class 3 or better is routinely achieved on plaques injection-moulded at a melt temperature of 220 °C and tool surface temperature of 40 °C using a degassing unit venting at −0.02 MPa. Additionally, combustion residue and fogging behaviour under reflectance measurement (ISO 6452:2021, method B) remain within the limits prescribed by GMW 3205 and VAG PV 3015 when the resin constitutes ≥96 wt% of the formulation, the balance being a proprietary low-migration additive masterbatch comprising phenolic primary antioxidant at 0.15 wt% and phosphite processing stabilizer at 0.10 wt%. The downstream manufacturing sequence typically deploys an electric toggle-clamp injection moulding machine with a clamping force of 8 000 kN to 12 000 kN, a three-stage screw of 22:1 L/D ratio with a check-ring non-return valve, and a hot-runner manifold delivering sequential valve-gate control to minimize hesitation marks. Processing parameters converge on a barrel profile of 190°C–210°C–220°C–230°C (hopper to nozzle), a volumetric injection rate of 120 cm³/s to 180 cm³/s, and a holding pressure of 35 MPa to 45 MPa hydraulic for a duration of 4 s per millimetre of nominal wall thickness. Post-ejection handling must avoid immediate stacking; parts are conditioned on a jig at 23 °C ± 2 °C and 50 % RH for 24 h prior to dimensional conformance verification against the ±0.2 mm datum targets defined in the tooling agreement. Terminal manufactured articles include instrument panel lower retainers, door panel carrier plates with integrated energy-absorbing rib structures, A/B/C-pillar trims, and centre console side panels, many of which are produced at wall stocks as thin as 1.5 mm without incurring melt-front solidification defects.
The vertical-axis automatic washing machine imposes a severe chemical–mechanical environment: an alkaline detergent bath at 60 °C to 85 °C, oscillating torque transients transmitted through spline-hub assemblies, and prolonged contact with fabric softener residues containing quaternary ammonium compounds that accelerate environmental stress cracking (ESCR) in insufficiently engineered polyolefins. Exceed™ PP7815E1 processed as a neat resin—without mineral filler or impact modifier dilution—exhibits a critical strain for stress cracking in a 10 wt% sodium carbonate solution at 80 °C that exceeds 1.2 % when evaluated by the bent-strip method adapted from ASTM D1693, under which a 38 mm × 13 mm specimen in a constant-rig fixture at −0.5 % applied strain shows no visual crazing after 500 h of immersion. The compliance architecture for appliance components references the insulation and mechanical endurance clauses of IEC 60335-1:2020 together with the material-specific thermal ageing requirements of UL 746B and the flammability provisions of IEC 60695-11-10 (glow-wire ignition temperature 750 °C on a 2.0 mm plaque, unmodified grade attaining classification HB). Formulation is kept deliberately simple to avoid exudation: the base resin constitutes 99.0 wt%, with 0.5 wt% of a tailored stabilizer package composed of a high-molecular-weight hindered phenolic antioxidant (Irganox® 1010 equivalent, 0.25 wt%), a phosphonite secondary stabilizer (0.15 wt%), and an acid-scavenging hydrotalcite co-stabilizer (0.10 wt%), the residual being a phthalocyanine-based blue pigment masterbatch diluted at a 1:100 let-down ratio. The processing line for a twin-drum inner–outer tub assembly typically includes a two-platen injection moulding machine with an accumulator-assisted retraction and a clamping capacity of 16 000 kN to 22 000 kN, equipped with a six-zone injection unit maintaining a mass temperature of 200 °C to 225 °C measured at the screw tip. A sequential co-injection or a specialized cascade hot-runner system with 16 individually controlled valve gates is employed to manage the lengthy flow-length-to-thickness ratio, which often exceeds 250:1. After demoulding, a thermal annealing cycle of 90 °C for 45 min under nitrogen blanket is applied to relax residual hoop stress in the bearing seat region prior to CNC machining of the shaft bore. End components range from complete inner tub units (impeller-type machines) with volumetric capacities of 60 L to 120 L to front-loading outer tubs incorporating integral counterweight mounting bosses, where the creep modulus of the material under 80 °C wet condition must remain above 350 MPa at 1 000 h extrapolated per ISO 899-1:2017.
Returnable transport packaging exposed to uncontrolled cold-chain logistics—frozen food distribution down to −25 °C and pharmaceutical cold-room storage at −40 °C—requires a base resin that retains a notched impact strength above the 4 kJ/m² threshold at −20 °C without transitioning into fully brittle fracture. Exceed™ PP7815E1, when diluted with 15 wt% to 25 wt% of well-sorted, closed-loop post-industrial regrind of identical rheological fingerprint, maintains an instrumented falling-dart impact energy exceeding 28 J at −30 °C on a 3 mm plaque (ISO 6603-2:2023, puncture velocity 4.4 m/s), enabling pallet designs that forgo the thick rib sections typical of HDPE equivalents. The governing mechanical validation for export and pooling service is ISO 8611-1:2021, which prescribes floor-load corner-drop and diagonal-racking tests; pallets moulded from this resin variant consistently survive a 0.5 m flat drop at −20 °C conditioned for 24 h without structural splitting when the gate-to-flow-end distance is kept below 400 mm and the nominal wall thickness is 3.5 mm in the deck section. Food-contact compliances for secondary packaging utilize the overall migration limits of EU Regulation 10/2011 at 40 °C/10 days (simulant A: 10 % ethanol) and FDA 21 CFR §177.1520 paragraphs for olefin polymers, both of which have been satisfied in batch testing with antioxidant levels maintained at ≤0.10 wt% in the finished article. The compounding step prior to injection is managed with a co-rotating twin-screw extruder of 40:1 L/D at a screw speed of 300 r/min, where the virgin PP7815E1 and regrind streams are gravimetrically dosed and homogenized at a measured melt temperature of 215 °C before strand pelletizing. The injection process utilizes a high-speed accumulator-driven machine with a clamp force of 10 000 kN, a shot weight of 12 kg, and a mold equipped with conformal cooling channels that reduce the core temperature to 25 °C within 18 s, achieving an overall cycle time of 45 s. Terminal products include nestable Euro-pallets of 1 200 mm × 800 mm × 160 mm with skid-resistant top decks and folding crate panels that replace multi-material plywood-and-steel assemblies, reducing tare weight by 38 % relative to the legacy design.
Outdoor leisure seating manufactured through gas-assisted injection of polypropylene copolymer eliminates the corrosion-proneness of powder-coated steel frames while meeting the static load and durability schedules of EN 581-1:2017 for domestic and contract-use furniture. A composition comprising 98.0 wt% Exceed™ PP7815E1, 1.2 wt% of a UV stabilization masterbatch (containing 0.30 wt% hydroxyphenyl-benzotriazole UV absorber and 0.10 wt% oligomeric hindered amine light stabilizer on total formulation weight), and 0.8 wt% of a dark-brown pigment preparation provides a colour retention of Delta E < 3.0 after 2 000 h of xenon-arc exposure per ISO 4892-2:2013 method A (filtered radiation, 0.51 W/m² at 340 nm, black-standard temperature 65 °C, continuous light cycle). The gas-assisted process inserts nitrogen at 18 MPa through a dedicated injector into a partially filled cavity (92 % volume-fill cut-off) to core out thick armrest and leg sections of 25 mm nominal diameter, producing hollow channels with a compact skin layer of 2.3 mm to 2.8 mm, thereby eliminating sink marks opposite reinforcement ribs. Mould temperature is controlled at 35 °C with a tolerance of ±2 °C via a pressurized water thermal regulation unit to ensure consistent skin solidification that prevents gas blow-through at the melt front. The tool steel selected for high-gloss cavity surfaces is a through-hardened 1.2343 ESR (X37CrMoV5-1) with a polished finish of N2 (VDI 3400), necessary to reproduce a leather-grain texture without undercuts that would trap mould-release deposits. Finished articles include monobloc armchairs with integrated under-seat storage and side tables with an overhang-to-thickness ratio of 8:1, both designed to pass the 100 000-cycle fatigue test under a 1 200 N horizontal alternating load prescribed by the applicable European standard.
In a stationary or automotive lead-acid battery case, the polypropylene copolymer functions as both structural enclosure and electrolyte containment vessel, continuously exposed to 37 % sulphuric acid at specific gravities of 1.28 g/cm³ to 1.30 g/cm³ and internal cell temperatures that can peak at 70 °C during recharge cycling. Exceed™ PP7815E1 serves as the matrix resin in a flame-retarded, elastomer-toughened compound formulated per SAE J537:2021 and the container material requirements of IEC 60896-21:2021 for stationary valve-regulated lead-acid cells. A typical compound design comprises 67.5 wt% PP7815E1 as the continuous phase, 22.0 wt% of an ethylene–propylene–diene monomer (EPDM) masterbatch containing 60 % active EPDM with a Mooney viscosity ML (1+4) 125 °C of 50 MU, 8.5 wt% of a brominated flame retardant (decabromodiphenyl ethane with a bromine content of 82 %), and 2.0 wt% of antimony trioxide synergist with a median particle size 0.4 µm. Melt compounding on a 52:1 L/D twin-screw extruder with a downstream side-feeder introduces the flame-retardant package after the polypropylene and elastomer phases have achieved a droplet morphology of 0.8 µm to 1.2 µm, verified by scanning electron microscopy of cryo-fractured extrudate. The material must reliably achieve UL 94 V-2 classification at 1.5 mm and, in certain telecom applications, V-0 at 3.0 mm; the latter is facilitated by raising the bromine load to 12 wt% with a concomitant reduction in PP7815E1 to 63 wt%. The processing window is exceptionally narrow because decabromodiphenyl ethane undergoes thermal debromination above 240 °C, generating free bromine radicals that corrode mould steel and embrittle the polypropylene chain. For this reason, the injection barrel temperature profile is restricted to 195 °C–205 °C–215 °C–225 °C, with a maximum nozzle temperature of 228 °C, and residence time within the barrel is not permitted to exceed 6 min. Moulds are fabricated from high-chromium 1.2083 (X42Cr13) or S136 SUP stainless steel with a nitrided surface hardness of HV 950 to withstand acid-catalysed pitting. Wall thickness across the container base and partition ribs is held to 2.8 mm ± 0.15 mm, and an alternating-flow hot-runner with gear-pump melt transfer ensures shot-to-shot weight variation below 0.3 %, critical for consistent weld-line strength at the cell divider junction. Terminal containers include L5 and L6 format battery boxes for automotive starting–lighting–ignition (SLI) applications, as well as 6V/12V monobloc containers for deep-cycle stationary energy storage, where wall integrity under a 60 s inverted leak test at 35 kPa internal pressure is a go/no-go production quality gate.
Toy components injection-moulded from Exceed™ PP7815E1 designed for the global market must satisfy the chemical migration limits of EN 71-3:2019+A1:2021 (Category I, II, and III limits for nineteen elements) and the phthalate restrictions of EU REACH Annex XVII entry 51, as well as the total lead content ceiling of 100 mg/kg in accessible substrates per US CPSIA Section 101. When processed at a melt temperature not exceeding 215 °C and with a screw back-pressure of 0.8 MPa to minimize shear-induced chain scission, the neat resin combined with 3.0 wt% of a US FDA-compliant colour concentrate achieves an extractable fraction below 0.5 mg/dm² in 3 % acetic acid simulant at 40 °C over 10 days. A single-cavity cold-runner mould with electropolished gates of 0.8 mm land length controls the local shear rate below 80 000 s⁻¹, preventing the formation of low-molecular-weight oxidation by-products that would otherwise cause sensory off-notes. Finished articles include multi-colour building blocks requiring tight interlocking tolerance and push-along vehicle bodies for children aged 18 months and above.
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| Property | Test Standard | PP7815E1 | Conventional Nucleated ICP | |
|---|---|---|---|---|
| Density (g/cm³) | ISO 1183-1:2019 | 0.900 | 0.905 | |
| Tensile Stress at Yield (MPa) | ISO 527-2/50 | 26 | 24 | |
| Tensile Modulus (MPa) | ISO 527-2/50 | 1,250 | 1,100 | |
| Flexural Modulus (MPa) | ISO 178:2019 | 1,300 | 1,150 | |
| Notched Izod Impact at 23 °C (kJ/m²) | ISO 180/A | 12 | 10 | |
| Notched Izod Impact at −20 °C (kJ/m²) | ISO 180/A | 6.5 | 4.2 | |
| Vicat Softening Temperature, A50 (°C) | ISO 306:2022 | 152 | 148 | |
| Heat Deflection Temperature, 0.45 MPa (°C) | ISO 75-2/B:2013 | 95 | 90 |
| Regulation / Standard | Scope | Applicable Clause / Method |
|---|---|---|
| FDA 21 CFR 177.1520 | Olefin polymers for food contact (repeated use) | Paragraph (c) 1.1a, with extractives limts per 21 CFR 176.170(c) |
| EU 10/2011 | Plastic materials and articles intended to come into contact with food | Overall migration limit 10 mg/dm²; specific migration limits for constituents listed in Annex I |
| REACH Regulation (EC) 1907/2006 | Registration, Evaluation, Authorisation of Chemicals | Substance fully registered; no SVHC content above 0.1% w/w |
| RoHS Directive 2011/65/EU | Restriction of Hazardous Substances in electrical equipment | Lead, mercury, cadmium, hexavalent chromium, PBBs, PBDEs below maximum concentration values |
| UL 94 | Flammability of Plastic Materials for Parts in Devices | HB classification in natural color at 1.5 mm thickness |
| GM Engineering Standard GMW15702-2017 | Polypropylene — Injection Molding, Medium Impact | Specification tier 3, type A, requiring min. 5 kJ/m² Izod at −20 °C |
