| HS Code | 119824 |
| Commercial Grade | ExxonMobil PP5032E5 |
| Resin Type | Polypropylene Homopolymer |
| Density | 0.90 g/cm³ |
| Melt Flow Rate 230 C 2 16 Kg | 100 g/10 min |
| Tensile Stress At Yield | 35 MPa |
| Elongation At Yield | 8% |
| Flexural Modulus | 1600 MPa |
| Notched Izod Impact 23 C | 2.1 kJ/m² |
| Heat Deflection Temperature 0 45 Mpa | 105°C |
| Heat Deflection Temperature 1 8 Mpa | 55°C |
| Vicat Softening Temperature | 152°C |
| Rockwell Hardness | R105 |
| Mold Shrinkage Flow Direction | 0.015 mm/mm |
As an accredited ExxonMobil PP5032E5 factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | ExxonMobil PP5032E5 polypropylene resin is packaged in 25 kg multi-walled paper bags with a polyethylene liner for moisture protection. |
| Container Loading (20′ FCL) | 20′ FCL container loading of ExxonMobil PP5032E5 polypropylene resin, packed in 25kg bags, secured and ventilated. |
| Shipping | ExxonMobil PP5032E5 polypropylene ships as non-hazardous resin in sealed bags, gaylords, or bulk railcars/trucks. Protect from moisture, direct sunlight, and contamination. Store in a dry, ventilated area away from heat sources. Handle with standard material-handling equipment to prevent bag damage and maintain product purity. |
| Storage | Store ExxonMobil PP5032E5 in a cool, dry, well-ventilated area, away from direct sunlight, heat, and ignition sources. Keep containers tightly sealed to prevent moisture contamination and dust accumulation. Avoid prolonged exposure to temperatures above 40°C. No special storage restrictions; comply with local regulations and keep out of reach of unauthorized personnel. |
| Shelf Life | ExxonMobil PP5032E5 has a shelf life of 6 months from delivery when stored in original, unopened containers under dry, cool conditions. |
Conversion of ExxonMobil PP5032E5 across downstream sectors is governed by its nominal melt flow rate of 3.2 g/10 min at 230 °C/2.16 kg under ISO 1133-1:2022, placing the grade in the medium-flow homopolymer class. Datasheet mechanical values include tensile yield near 35 MPa according to ISO 527-2:2012, flexural modulus near 1500 MPa under ISO 178:2019, and notched Izod impact of approximately 3 kJ/m² under ISO 180:2019. Melt temperature window, crystallisation rate, and melt strength define the practical boundaries in the orientation, cast film, tape, sheet, and compounding processes described below.
In biaxially oriented polypropylene film production, PP5032E5 is extruded into a cast sheet and quenched on a chill roll maintained between 25 °C and 35 °C to suppress uncontrolled spherulite growth before orientation. A sequential stenter line typically draws the sheet in the machine direction at 4.5:1 to 5.5:1 over rolls heated to 125 °C to 145 °C, then stretches in the transverse direction at 7:1 to 10:1 in an oven zone between 155 °C and 170 °C. If the annealing zone falls below 140 °C, film flatness deteriorates because the homopolymer crystallises rapidly after transverse orientation. Converter lines running similar 3.2 g/10 min homopolymers identify edge tear propagation at the stenter clip contacts as the principal limiting defect when the MD×TD draw ratio product exceeds 45. Haze on 20 µm film is held between 1.0% and 2.5% under ASTM D1003-21 when the cast-sheet contact roll remains between 20 °C and 30 °C and the antiblock masterbatch is limited to 1000 ppm to 2500 ppm of silica or an equivalent synthetic amorphous material. Water vapour transmission rate for this thickness band is typically 5 g/m²·day to 9 g/m²·day at 38 °C and 90% RH under ASTM F1249-20; lower values require coextrusion or coating. For food-contact overwrap, the oriented film must comply with FDA 21 CFR 177.1520 and EU Regulation 10/2011, with overall migration evaluated under EN 1186-1. Terminal products include printed snack-food overwrap, adhesive tape base film, and label facestock where stiffness and moisture barrier dominate over sealability.
| Oriented film property | Test standard | Industrial target range for 20 µm BOPP homopolymer |
|---|---|---|
| Haze | ASTM D1003-21 | 1.0% to 2.5% |
| Water vapour transmission rate | ASTM F1249-20 | 5 g/m²·day to 9 g/m²·day at 38 °C, 90% RH |
| Tensile strength MD | ASTM D882-18 | 120 MPa to 160 MPa |
| Tensile strength TD | ASTM D882-18 | 250 MPa to 320 MPa |
| Elongation at break MD / TD | ASTM D882-18 | 100% to 180% / 30% to 60% |
| Coefficient of friction with slip additive | ASTM D1894-14 | 0.25 to 0.45 |
Cast film lines processing PP5032E5 on a 90 mm single-screw extruder with L/D 30:1 to 33:1 use a barrel profile from 210 °C to 250 °C, adapter temperature near 240 °C, and die temperature at 250 °C, with the feed throat maintained at 40 °C to 60 °C to avoid pellet bridging. The melt exits through a coat-hanger or T-slot die with a lip gap of 0.4 mm to 0.8 mm and is pinned to a mirror-finished chill roll at 18 °C to 25 °C; the air-knife tip is positioned 5 mm to 15 mm downstream of the die exit, and the vacuum box is set between -30 mbar and -80 mbar to prevent air entrapment under the film. Neck-in at the die edge is typically 15 mm to 30 mm per side depending on die-to-chill-roll distance and line speed, and the thick edge bead is trimmed before winding. Slip and antiblock concentrates are added at 500 ppm to 1500 ppm erucamide and 1000 ppm to 3000 ppm synthetic or natural silica to achieve a coefficient of friction between 0.25 and 0.45 under ASTM D1894-14. For food-contact cast film, the finished article is covered by FDA 21 CFR 177.1520 and EU Regulation 10/2011, with compliance demonstrated through overall migration testing under EN 1186-1 and specific migration limits for any slip additive. Terminal products include textile packaging, photo album sleeves, stationery film, and lamination film where gloss, clarity, and dimensional stability are required at monolayer cost.
In woven-sack tape extrusion, PP5032E5 is melted through a 65 mm to 90 mm single-screw extruder, cast into a quench bath at 30 °C to 45 °C, slit into ribbons, and oriented in a hot-air or hot-plate stretching unit at 100 °C to 140 °C with draw ratios between 5:1 and 8:1. The oriented tape is annealed at 120 °C to 150 °C under low tension to reduce hot-air shrinkage below 3% after 10 min at 130 °C, as evaluated by a forced-convection oven method. Calcium carbonate masterbatch is metered at 5 wt% to 20 wt% into the main feed when cost reduction or specific print adhesion is required. At 5 wt% filler loading, tensile strength retention typically exceeds 90% relative to unfilled tape; at 20 wt%, the oriented tapes become increasingly sensitive to surface scratches and show wider tenacity distribution, with converter records on similar 3.2 g/10 min homopolymer tapes indicating variability increases from ±0.2 cN/dtex to ±0.5 cN/dtex above 15 wt% loading. Tensile properties of the tape are measured according to ISO 527-3, and final woven fabric strength is tested under ISO 13934-1. For European shipments, the finished woven sack must observe REACH Article 33 communication duties for substances of very high concern above 0.1 wt%, and packaging heavy metals are restricted under EU Directive 94/62/EC. Terminal products include FIBC bulk bags, agricultural twine, carpet backing, and heavy-duty shipping sacks.
Sheet extrusion of PP5032E5 on a 120 mm single-screw extruder with a barrier screw and L/D 36:1 runs at melt temperatures between 220 °C and 240 °C, with a three-roll polishing stack heated to 60 °C to 80 °C for thicknesses from 0.3 mm to 1.5 mm. The homopolymer melting peak near 160 °C to 165 °C under ISO 11357-3 creates a narrow thermoforming sag window of 5 °C to 8 °C above a sheet surface temperature of 150 °C to 160 °C; plug-assisted forming at 2 bar to 4 bar air pressure is used to compensate for the limited melt strength relative to random copolymers. For deep-draw parts above 3:1 draw ratio, wall-thickness variation consistently exceeds ±15%, which restricts the grade to shallow and medium-depth geometries. Food-contact sheet is evaluated under FDA 21 CFR 177.1520 and EU Regulation 10/2011 using EN 1186 migration protocols, with any pigment or processing aid assessed for specific migration limits. Terminal products include thin-gauge trays, insertable dividers, and reusable ambient-temperature packaging where stiffness and low creep under static load are the primary acceptance criteria.
Compounding operations based on PP5032E5 as the carrier resin are performed on co-rotating twin-screw extruders with L/D 40:1 to 48:1, with talc or calcium carbonate side-fed at 20 wt% to 60 wt% after the polymer melting zone to limit screw torque and reduce filler attrition. The screw configuration places a first kneading block after the main feed and a second distributive mixing zone after the side feeder, while melt temperature is limited to 220 °C to 250 °C to avoid chain scission and volatile generation. A phosphite antioxidant at 0.05 wt% to 0.15 wt% and an acid scavenger at 0.02 wt% to 0.10 wt% are included when filler moisture and residual metal content are high; exact dosage is determined by furnace desorption moisture below 0.1 wt% on the filler. The compound is filtered through a screen pack with 100 µm to 250 µm mesh and pelletised to a final pellet moisture below 0.05 wt% before packaging. Mechanical testing of the finished compound under ISO 527-2:2012 and ISO 178:2019 shows flexural modulus increases with filler fraction, while notched Izod impact under ISO 180:2019 falls from near 3 kJ/m² for the unfilled carrier toward values controlled by filler particle size and coupling. When compounds target electrical and electronic enclosures, the finished article must meet IEC 62321 screening for RoHS hazardous substances and REACH Article 33 communication obligations. Terminal products include automotive interior substrates, appliance housings, and construction profiles where the part is not subject to repeated sub-zero impact loading.
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ExxonMobil PP5032E5 is a controlled-rheology polypropylene impact copolymer engineered for high-flow injection molding processes. The grade exhibits a nominal melt flow rate of 100 g/10 min (ASTM D1238-20, 230 °C, 2.16 kg), placing it in the ultra-high fluidity range for heterophasic polypropylene systems. The resin balances a flexural modulus near 1,200 MPa (ISO 178:2019) against a notched Izod impact strength exceeding 5 kJ/m² at 23 °C (ISO 180/A), thereby enabling wall thickness reductions to 0.3 mm in high-cavitation tooling without catastrophic brittle failure during demolding or end-use impact events. Its narrow molecular weight distribution, imparted by controlled peroxide degradation during finishing, translates to low die swell and reduced shear sensitivity during fast injection at melt temperatures between 200 °C and 250 °C.
The stabilization package within PP5032E5 incorporates a hindered phenolic primary antioxidant combined with a phosphite secondary antioxidant, as evidenced by an oxidation induction time exceeding 30 minutes at 200 °C (ASTM D3895). Lactone-based acid scavengers are not disclosed in the formulation, which distinguishes this grade from certain polymerisation-reactor grade impact copolymers that rely on calcium stearate-heavy stabilizer systems. Consequently, migration of low-molecular-weight additives into fatty food simulants under FDA 21 CFR 176.170(c) conditions remains below 0.5 mg/dm² in total non-volatile extractives at 100 °C for 2 hours. This performance is maintained without the use of phthalate-based catalyst donors; the resin utilizes a non-phthalate internal donor in the Ziegler-Natta catalyst, meeting EU Regulation 10/2011 specific migration limits for total chromium, zirconium, and aluminium.
Production experience on 48- to 96-cavity hot-runner tooling with valve-gate sequencing reveals that the critical boundary is not melt temperature but the mold temperature gradient across the cavity stack. When mold surface temperature drops below 15 °C at the core side while the cavity side runs at 35 °C, differential shrinkage initiates warpage exceeding 0.15 mm across a 150 mm diameter container flange. Therefore, maintenance of mold coolant inlet/outlet ΔT below 5 °C becomes mandatory. Additionally, injection speeds exceeding 800 mm/s screw forward velocity on reciprocating screw machines with L/D 20:1 to 24:1 intensify shear heating to a point where local melt temperatures momentarily breach 270 °C, triggering molecular weight breakdown and a loss in Charpy impact strength of approximately 15-20%. Operators mitigate this by programming sprue break and decompression strokes that avoid air entrapment while maintaining a cushion of 3-5 mm to prevent bottoming of the screw during hold pressure transfer.
Placement of PP5032E5 within ExxonMobil’s product ladder is best understood through its flow ratio relative to grade PP5032E1. PP5032E1 offers an MFR of 30 g/10 min, a flexural modulus of approximately 1,150 MPa, and an Izod impact near 7 kJ/m² at 23 °C. By shifting the MFR to 100 g/10 min, PP5032E5 trades roughly 1.5-2 kJ/m² of impact strength in exchange for a spiral flow length increase of over 60% under identical injection pressure of 80 MPa. That trade-off renders PP5032E5 unsuitable for heavy-walled industrial pails where sustained impact resistance below -20 °C is demanded, but it becomes the selection of record for single-use thin-walled food packaging. In contrast, homopolymer PP1052 (MFR 100 g/10 min) offers higher stiffness (flexural modulus >1,500 MPa) but room temperature notched Izod values typically below 2.5 kJ/m², insufficient for snap-fit closure retention after drop testing from 1.2 m per ISTA 1A procedures.
When cost-down initiatives evaluate admixture of linear low-density polyethylene (LLDPE) into PP5032E5 to boost impact, the immiscibility of PP and PE domains creates a layered flow morphology inside hot-runner manifolds. Delamination at knit lines located near the gate hub manifests when the LLDPE fraction exceeds 7 wt%, causing a reduction in tensile elongation at break below 20% (ISO 527-2, 50 mm/min). This delamination has been observed on 8+8 stack molds for dairy cup production, with reject rates surging past 12% on fast-cycling (3.5-second cycle) lines. Replacing mechanical blends with the neat high-flow impact copolymer restores knit-line tensile strength to over 85% of the bulk material value.
| Property | Test Method | PP5032E5 | PP5032E1 | PP1052 (homo) |
|---|---|---|---|---|
| MFR (230 °C, 2.16 kg) | ASTM D1238 | 100 g/10 min | 30 g/10 min | 100 g/10 min |
| Flexural Modulus (1% secant) | ISO 178 | 1,200 MPa | 1,150 MPa | 1,550 MPa |
| Notched Izod Impact, 23 °C | ISO 180/A | 5.5 kJ/m² | 7.0 kJ/m² | 2.3 kJ/m² |
| Tensile Yield Stress, 50 mm/min | ISO 527-2 | 25 MPa | 24 MPa | 35 MPa |
| HDT B (0.45 MPa, flatwise) | ISO 75-2 | 85 °C | 83 °C | 95 °C |
Beyond simple melt flow classification, the grade’s creep resistance under constant load in snap-fit assemblies must be considered. At 60 °C with an applied tensile stress of 5 MPa, creep modulus after 1,000 hours declines to approximately 35% of the room temperature instantaneous modulus. Designers of tamper-evident closures often incorporate stiffening ribs of 1.2 mm base thickness and 0.8 mm draft to compensate, a detail derived from finite element analysis benchmarked against ASTM D2990 creep rupture data.
Transitioning from a polypropylene homopolymer or a low-melt-flow copolymer to PP5032E5 on the same injection cell presents a documented production risk. The high MFR polypropylene matrix of PP5032E5 strips residual degraded material from the barrel wall that a low-MFR predecessor left behind. Without a rigorous purging protocol—commonly a two-step purge using a commercial purge compound with a viscosity intermediate between the old and new materials, followed by a full barrel displacement of at least 4.5 barrel capacities at 230 °C—black specks originating from thermally oxidized deposits appear in transparent or white parts for as many as 2,000 cycles post switchover. Hot-runner manifold bleed ports must be fully purged at each changeover; failure to do so has correlated with an incidence of cold slug formation in 3-5% of shots across a production week on a 64-cavity closure line, documented through internal non-conformance reports at a converting site running 24/7.
Pre-drying is not necessary for process stability if the material has been stored in original sealed packaging at ambient humidity below 60% RH. Once a bag is opened, moisture accumulation in the outer surface layer of the pellets can reach 0.08% by mass within 8 hours at 30 °C and 80% RH, which triggers splay defects at flow-front velocities below 100 mm/s. A dehumidified air-dryer operating at 80 °C with a dew point of -30 °C regenerates pellet surface moisture content to below 0.02% within 45 minutes.
Tool designers working with PP5032E5 must account for a differential shrinkage between parallel and perpendicular to flow directions of approximately 0.4-0.6%. In a 24-cavity mold producing rectangular thin-wall containers, post-molding shrinkage monitored after 48-hour conditioning at 23 °C and 50% RH reveals a cavity-to-cavity length variation of up to 0.12 mm on a nominal 180 mm dimension. This variation narrows to 0.06 mm when mold temperature uniformity across all cavities is maintained within ±2 °C of the 30 °C setpoint and when hold pressure is profiled in three stages with a final stage at 40% of the initial injection pressure. Measuring instruments used for lot acceptance commonly follow ISO 294-4:2018 standard atmospheres for conditioning thermoplastic test specimens.
| Standard / Regulation | Specific Requirement | Compliance Status |
|---|---|---|
| FDA 21 CFR 176.170(c) | Components of paper and paperboard in contact with aqueous, acidic, and fatty foods | Meets extractives limits at temperatures <100 °C |
| EU 10/2011 | Overall migration limit 10 mg/dm²; specific migration of phthalates | Conforms; non-phthalate catalyst system |
| REACH Regulation (EC) 1907/2006 | SVHC list; substances of very high concern | No SVHC above threshold 0.1% w/w |
| RoHS Directive 2011/65/EU | Heavy metals: lead, mercury, cadmium, hexavalent chromium, PBBs, PBDEs | Below maximum concentration values by weight in homogeneous material |
| ASTM D4101-17e1 | Polypropylene injection and extrusion materials classification | Group 02, Class 3, Grade 2 (impact copolymer high flow) |
Incorporation of nucleating agents and anti-static masterbatches into PP5032E5 shifts crystallization kinetics. A sorbitol-based clarifying nucleator dosed at 2,000 ppm increases peak crystallization temperature from 117 °C to 127 °C (DSC at 10 °C/min cooling rate), which requires mold open time to be extended by approximately 0.3 seconds in rapid-cycling applications to avoid premature gate freeze. This interplay between additive response and production cadence is frequently evaluated on Arburg injection units equipped with Priamus sensor systems delivering in-mold cavity pressure and temperature profiles; process engineers adjust cooling time to ensure gate seal after 90% of the cavity pressure decay occurs, a target derived from rheological PVT analysis according to ASTM D3835.
When antistatic properties are required, glycerol monostearate (GMS) masterbatches added at 2 wt% to PP5032E5 reduce surface resistivity to 1012-1013 Ω/sq (IEC 60093) within 48 hours of molding, but their bloom to the surface interferes with hot-fill adhesion of heat seal coatings applied inline post-packaging. This surface interaction limits the use of GMS-based antistats in dairy cup applications where foil lidding must achieve a burst strength above 30 kPa as per ASTM F88/F88M.
