| HS Code | 595452 |
| Density | 0.918 g/cm³ |
| Melt Flow Index | 1.0 g/10 min (190°C/2.16 kg) |
| Melting Point | 122 °C |
| Vicat Softening Point | 100 °C |
| Brittleness Temperature | -75 °C |
| Tensile Strength At Yield | 9.0 MPa |
| Tensile Strength At Break | 15.0 MPa |
| Elongation At Break | 600 % |
| Flexural Modulus | 260 MPa |
| Secant Modulus 1 | 220 MPa |
| Shore D Hardness | 50 |
| Film Dart Drop Impact | 130 g |
As an accredited NOVAPOL LLDPE PF-0118-C factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | NOVAPOL LLDPE PF-0118-C is supplied as free-flowing pellets in 25 kg heat-sealed polyethylene bags, palletized and wrapped. |
| Container Loading (20′ FCL) | 20′ FCL: NOVAPOL LLDPE PF-0118-C loaded on pallets, shrink-wrapped, secured for safe container transport. |
| Shipping | NOVAPOL LLDPE PF-0118-C is a linear low-density polyethylene resin supplied as free-flowing pellets. It is non-hazardous and not regulated as dangerous goods for transport. Ship in clean, dry containers or railcars, protected from moisture and contamination. Avoid excessive heat and keep away from ignition sources during transit. |
| Storage | Store NOVAPOL LLDPE PF-0118-C in a cool, dry, well-ventilated area away from direct sunlight, heat, and ignition sources. Keep containers tightly closed when not in use. Protect from moisture, contamination, and mechanical damage. Avoid generating dust and static electricity; use proper grounding during transfer. No special temperature controls are required under normal conditions. |
| Shelf Life | Shelf life is indefinite if stored in original, unopened packaging in a dry, cool area away from direct sunlight. |
On three-layer blown-film lines with die diameters between 350 mm and 450 mm, die gaps from 1.9 mm to 2.3 mm, and blow-up ratios controlled at 2.2:1 to 2.8:1, NOVAPOL LLDPE PF-0118-C heavy-duty shipping sack film is processed with melt temperatures from 196 °C to 220 °C. The resin’s nominal melt index of 1.0 g/10 min (ASTM D1238-20, 190 °C/2.16 kg) and density of 0.918 g/cm³ (ASTM D792-20) set the die-pressure envelope between 240 bar and 300 bar on grooved-feed extruders with 30:1 L/D. Formulation for an 80 µm industrial sack film commonly contains 70–80 wt% PF-0118-C, 10–20 wt% LDPE, and 10–20 wt% HDPE; a fluoropolymer processing aid masterbatch is added at 0.3–0.8 wt% when die pressures exceed 280 bar. Tensile properties are assessed under ASTM D882-18 using type IV specimens at 500 mm/min, with machine-direction tensile strength qualification levels held at 38–45 MPa. Elmendorf tear is tested according to ASTM D1922-15 and dart impact according to ASTM D1709-19; lot-to-lot dart impact variation on a 400 mm die line remains below 8% when melt temperature is held within ±5 °C. Compliance for non-food industrial sacks references DIN EN ISO 527-3:2019 for tensile testing and ISO 6383-2:2004 for tear propagation. Finished product types include 25 kg and 50 kg chemical resin sacks, mineral powder liners, and heavy-duty liners for bulk packaging. The operational boundary is formed by HDPE fractions above 20 wt%, which degrade machine-direction tear sharply, and erucamide slip levels above 0.15 wt%, which lower coefficient of friction below 0.10 (ASTM D1894-14) through surface migration kinetics and induce roll telescoping during slitting.
Because silage wrap must retain elongation after 12 months of UV exposure while resisting puncture from stem stubble and bunker-wall abrasion, PF-0118-C is incorporated as the core toughness layer at 75–85 wt%, with LDPE at 10–15 wt% and an EVA-rich sealing layer at 5–10 wt%. Blown-film equipment is configured for 25–60 µm wrap at blow-up ratios of 3.0:1 to 4.0:1 to balance machine-direction and transverse-direction elongation; greenhouse-grade films are run at 150–200 µm using the same base formulation with an additional hindered amine light stabilizer masterbatch at 0.3–0.8 wt% and a benzotriazole UV absorber at 0.1–0.4 wt%. Residual tensile retention after 1,500 h in accelerated weathering per ISO 4892-2:2021 is specified at 65–75%. Puncture resistance is measured by ISO 7765-1:2004, tear resistance by ISO 6383-2:2004, tensile elongation by ISO 527-3:2019, and round-bale wrap load retention by EN 13206:2017. For silage wrap, polyisobutylene tackifier is limited to 1.0–2.0 wt% to maintain seal performance without excessive oxygen transmission. Finished product types include 25 µm round-bale wrap in 750 mm widths, bunker silo covers, and greenhouse cover films. Metallic stearate antiblock additions above 0.2 wt% are not recommended due to increased oxygen transmission and corrosive residue on extrusion die lips.
Capacities above 500 kg demand liner structures where the 60 µm bottom gusset remains the limiting dimension for static load and seal creep. PF-0118-C is used in the inner sealing layer at 90–95 wt%, with a metallocene polyolefin plastomer at 3–5 wt% for hot tack and a silica antiblock at 0.05–0.10 wt%; outer layers may contain HDPE at 20 wt% to resist abrasion during filling of 500–1,500 kg containers. Down-gauging below 60 µm shifts failure from puncture to seal creep at static loads exceeding 800 kg, particularly where bottom-gusset thickness variation exceeds ±5%. Heat seal settings on rotary bag machines are 105–125 °C at 0.4–0.6 MPa for 0.5–1.0 s, with seal strength tested per ASTM F88/F88M-21 and hot tack per ASTM F1921-18. Coefficient of friction is controlled between 0.20 and 0.35 (ASTM D1894-14) to allow filling-station insertion without blocking. Puncture resistance is qualified by ASTM F1306-19 at 0.3 mm/min and dart impact by ASTM D1709-19. For food-grade liners, compliance is based on FDA 21 CFR 177.1520(c) and EU Regulation 10/2011 Annex I overall migration limits. Terminal products include 500–1,500 kg liners for polymer pellets, mineral powders, and food ingredients. Published lab-scale data for PF-0118-C in FIBC liner structures below 60 µm is limited; the stated windows are derived from production-scale audits on 450 mm three-layer lines. Pre-drying is not required at relative humidity below 60%; above this threshold, surface condensation must be removed at 60 °C for 4 h to avoid bubble instability.
Frozen food film structures at 40 µm to 80 µm use PF-0118-C as the core layer at 70–85 wt%, with LDPE at 10–20 wt% and EVA in the sealing layer at 5–10 wt%. Processing is carried out at melt temperatures of 200–220 °C, blow-up ratios from 2.5:1 to 3.5:1, and frost-line heights of 3–5 die diameters. Low-temperature dart impact is evaluated at -20 °C according to ASTM D1709-19, and tear resistance is measured by ASTM D1922-15. Seal initiation is determined by hot tack testing per ASTM F1921-18; with an EVA content of 8 wt%, a 10 N/25 mm seal threshold is achieved between 100 °C and 115 °C. For frozen food contact, compliance relies on FDA 21 CFR 177.1520(c) and EU Regulation 10/2011 overall migration test conditions appropriate to the intended food category. Terminal products include frozen vegetable pouches, ice cream bags, and IQF food liners. Formulations containing more than 5 wt% HDPE are not suitable for service at -40 °C because of brittle failure, and the structure is not recommended for high-fat foods heated above 95 °C.
Stretch hood lines running 80–140 µm gauge with PF-0118-C as 70–85 wt% base resin, LDPE at 10–20 wt%, and EVA or polyolefin plastomer at 10–15 wt% qualify films with machine-direction tensile strength set at 45–52 MPa under ISO 527-3:2019 and elongation at break of 700–900% under ASTM D882-18. Unlike cast-film stretch hood grades with melt indices above 2.0 g/10 min, PF-0118-C is processed on blown-film lines with die gaps from 1.8 mm to 2.2 mm, blow-up ratios of 3.0:1 to 4.0:1, and die temperatures from 210 °C to 225 °C. The principal process risk is melt fracture in the die land; addition of 0.5–1.0 wt% fluoropolymer processing aid is necessary when output exceeds 350 kg/h on a 450 mm die line to keep die pressure below 320 bar. Puncture resistance according to ASTM D5748-19 is used for release testing; values below 8 N in 80 µm film indicate insufficient melt temperature or LDPE above 20 wt%. Rewinding tension is maintained at 15–25 N/mm to prevent pre-stretch activation before pallet application. Terminal products include 1,200 mm stretch hoods for palletized beverage bottles, construction materials, and chemical drums. Industrial packaging compliance is guided by REACH 1907/2006/EC and RoHS 2011/65/EU; no food-contact status is claimed for this converted article. The formulation is not suitable for cast-film lines with die gaps below 0.8 mm due to excessive melt pressure.
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Designated within the NOVAPOL linear low-density polyethylene range as a butene-based cast-film grade, NOVAPOL LLDPE PF-0118-C carries a nominal melt index of 1.0 g/10 min determined under ASTM D1238 at 190 °C with a 2.16 kg load, and a nominal density of 0.918 g/cm³ determined under ASTM D792. The resin is produced by gas-phase polymerization over a Ziegler-Natta catalyst, yielding heterogeneous incorporation of butene across the molecular-weight distribution. This short-chain branching distribution limits crystal thickness and produces a broad melting endotherm; differential scanning calorimetry under ASTM D3418 on similarly structured butene LLDPE typically shows a primary melting peak between 120 °C and 125 °C. The C suffix corresponds to a cast-film additive formulation, and exact slip and antiblock loadings differ from other suffix versions within the same PF-0118 density/MI family. Those additive concentrations are reported on the lot certificate of analysis rather than as fixed nominal values.
Because the resin has no long-chain branching, its shear sensitivity is reduced compared with high-pressure LDPE. Capillary rheometry at 190 °C for a linear polyethylene of 1.0 g/10 min melt index typically shows a power-law index between 0.40 and 0.50, implying less shear thinning than an LDPE of equivalent melt index. The absence of long-chain branching also lowers melt strength, so the cast-film melt curtain must be stabilized by minimizing air-gap distance and controlling melt temperature rather than by relying on strain-hardening. Published data for this specific configuration is limited; the processing descriptions below combine standard LLDPE industrial practice with resin-structure logic.
| Property | Test method | Representative value or range |
|---|---|---|
| Density | ASTM D792 | 0.918 g/cm³ |
| Melt index | ASTM D1238 | 1.0 g/10 min at 190 °C, 2.16 kg |
| Primary melting peak | ASTM D3418 | 120–125 °C for similarly structured butene LLDPE |
| Comonomer | — | 1-butene |
| Production process | — | Gas-phase, Ziegler-Natta catalyst |
| Additive package | Lot-specific | Cast-film slip/antiblock formulation denoted by C suffix |
On a single-screw extruder with barrel L/D ratio between 24:1 and 30:1, a barrier screw with a Maddock mixer is preferred over a simple three-zone screw when running NOVAPOL LLDPE PF-0118-C at high throughput. Barrel zones are commonly profiled from 180 °C at the feed section to 240 °C at the metering section, with adapter and die zones maintained between 250 °C and 270 °C. Melt temperature should remain below 290 °C because oxidative consumption of the antioxidant package accelerates at higher temperatures and carbonyl species develop in the melt. Die-lip buildup and black specks increase when the melt is held above this threshold for extended residence times. Below 220 °C, high-molecular-weight chains relax too slowly in the die-entry region, and surface melt fracture or sharkskin may appear. On a 90 mm cast-film extruder, screw speeds between 40 rpm and 90 rpm commonly generate head pressures of 20–35 MPa, depending on screen-pack loading and die restriction.
Drying is not required when the resin is stored in sealed containers and transferred to the hopper under dry conditions. If pellets are exposed to ambient air with relative humidity above 60%, surface condensation can enter the feed throat and create steam during melting. The resulting film defects include surface pitting and disruption of the pinning line. A desiccant-bed hopper dryer operating at 60 °C with a dew point of -30 °C for 2 h is sufficient to remove surface moisture. Regrind should be dried before reintroduction above 20 wt%, because edge trim and roll-wrap scrap can contain adsorbed moisture and oxidized low-molecular-weight fractions.
Cast-film gauge is controlled by the ratio of die gap to final film thickness. For PF-0118-C, die gaps of 0.5–0.8 mm are used for final gauges between 15 µm and 80 µm. A die gap of 0.6 mm and a final gauge of 25 µm corresponds to a draw ratio of 24:1. This drawdown orientation raises machine-direction tensile strength and Elmendorf tear resistance while reducing transverse-direction tear resistance. The pinning device, either an air knife or vacuum box, is positioned 10–30 mm from the die exit to minimize neck-in and preserve edge uniformity. The chill roll is maintained at 15–30 °C; higher temperatures reduce quench rate and may improve optical clarity, but they also increase blocking risk before the slip additive has bloomed to the surface. Thickness variation, measured by an in-line beta or X-ray scanner, is typically held below ±0.5 µm at a 25 µm target. Edge bead is controlled by trimming 2–8 mm from the film edge and by maintaining die-lip temperature uniformity within 3 °C.
Mechanical properties of cast films from this product are governed by orientation state, gauge uniformity, and cooling rate. Tensile properties are measured under ASTM D882 at 23 °C and 50% RH after 48 h conditioning. For similarly structured butene LLDPE cast films at 25 µm, tensile strength at break in the machine direction typically falls between 35 MPa and 45 MPa, while transverse-direction values are often 20–30% lower. Elmendorf tear resistance under ASTM D1922 is strongly anisotropic; machine-direction values are commonly 60–120 g and transverse-direction values range from 250–400 g. Dart impact strength under ASTM D1709A for similarly structured films at 25 µm commonly ranges from 80 g to 130 g, but the value is nonlinear with thickness and must be measured on the final converter-line output. These ranges are industrial benchmarks for verification rather than product release limits.
In blown-film conversion, the low melt strength associated with the linear chain architecture of PF-0118-C can cause bubble instability on air-ring systems optimized for high-pressure LDPE. Blending with a high-pressure LDPE of melt index 0.25–2.0 g/10 min at 20–30 wt% raises melt tenacity and reduces bubble-breathing and helical instability. Pure PF-0118-C in a conventional blown-film die with a die gap above 1.2 mm may exhibit instability at screw speeds above 60 rpm; the same resin in cast-film conversion is not subject to this failure mode because the melt curtain is quenched directly onto a chill roll. LDPE addition also reduces extruder backpressure and improves drawdown at low gauges but lowers dart impact strength relative to the neat resin.
Although the primary application is cast film, PF-0118-C can be processed on blown-film lines with a low-pressure die and a dual-lip air ring. The reduced melt strength of a linear polymer compared with LDPE requires a lower blow-up ratio, typically 2.0:1 to 2.5:1, and a frost-line height of 2–4 die diameters. At higher blow-up ratios, bubble motion may produce gauge bands and unstable web tension. Blown film from this resin exhibits lower haze after blending with LDPE but higher dart impact strength than LDPE of equivalent melt index. Published data for this specific configuration is limited; line trials are required to set the cooling profile and frost-line height.
In extrusion coating and lamination, PF-0118-C is applied to paper, paperboard, aluminium foil, or oriented films at coating weights from 10 g/m² to 30 g/m². Melt temperature in the coating die is typically set between 280 °C and 320 °C, higher than cast-film extrusion, to promote melt oxidation and adhesion to polar substrates. The air gap between the die exit and laminating nip is maintained between 100 mm and 250 mm; shorter gaps reduce neck-in and improve melt-curtain stability, while longer gaps allow oxidative modification of the melt surface to increase foil adhesion. Adhesion to paperboard is typically lower than that of high-pressure LDPE at equivalent coating weight because the linear polymer does not penetrate the fibre mat as deeply. Corona treatment of the substrate to 38–42 mN/m surface energy or the use of an adhesion primer is common when peel strength above 2 N/15 mm is required.
Seal performance of cast film based on PF-0118-C is determined by the melting endotherm distribution and by the surface-additive bloom. Heat-seal initiation temperature for a butene LLDPE film of 0.918 g/cm³ density typically lies between 100 °C and 110 °C when sealed under a 0.3 MPa jaw pressure and 0.5 s dwell. The seal-initiation temperature is lower than that of higher-density LLDPE grades and higher than very-low-density grades. Blocking force and coefficient of friction are measured under ASTM D1894; these surface properties depend on migration of the slip additive to the film surface. Migration rate increases with temperature and storage time. A film wound at high tension immediately after extrusion may show blocking because the additive has not yet bloomed. Conversely, storage above 40 °C can accelerate additive bloom and cause excessive slip on downstream packaging lines. Converters must evaluate both properties on actual roll stock after storage at the intended warehouse temperature.
Food-contact evaluation is conducted under 21 CFR 177.1520 for olefin polymers used in food-contact applications. PF-0118-C may be used in food-packaging structures when the film is fabricated under good manufacturing practices and when extractable levels meet the applicable specifications in the regulation. In the European Union, compliance is assessed under Regulation (EU) No 10/2011, including overall migration testing with food simulants selected according to the intended food type and use temperature. The final migration value depends on film thickness, additive selection, and thermal processing history; therefore, the converter must perform migration testing on the final article. The slip and antiblock additives present in the C suffix can contribute to overall migration at elevated temperatures, so suitability for fatty foods above 40 °C should be verified on the final structure.
NOVAPOL LLDPE PF-0118-C differs from fractional-melt linear grades primarily in drawability and extruder torque. A fractional-melt LLDPE of 0.5 g/10 min provides higher dart impact and puncture resistance at equivalent density, but it requires higher motor torque and can develop surface roughness on cast-film lines at high screw speeds. By comparison, a high-flow LLDPE of 2.0–3.0 g/10 min draws down more readily for thin-gauge extrusion coating but yields lower melt strength and reduced bubble stability in blown-film conversion. The 1.0 g/10 min melt index of PF-0118-C provides a midpoint suitable for cast-film producers needing sufficient melt strength to maintain the melt curtain over an air gap while retaining enough shear thinning for high-speed winding.
On production-scale cast-film lines, the principal failure modes observed for this class of butene LLDPE are die-lip deposit accumulation, gauge bands associated with chill-roll speed oscillation, and roll blocking in high-humidity storage. Die-lip cleaning intervals are commonly between 8 h and 24 h depending on melt temperature and output. Chill-roll drives should maintain speed variation below ±0.5% to avoid periodic thickness bands. Roll stock should be stored at 25–40 °C before slitting to allow additive bloom and stress relaxation. No additional antioxidant masterbatch is normally required for monolayer cast-film extrusion when the melt temperature is held below 290 °C and the extruder is purged after shutdown with a low-MI HDPE or commercial purging compound.
