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Braskem PP Homopolymer F1000HC2

    • Product Name: Braskem PP Homopolymer F1000HC2
    • Factroy Site: Yudu County, Ganzhou, Jiangxi, China
    • Price Inquiry: admin@ascent-chem.com
    • Manufacturer: Ascent Petrochem Holdings Co., Limited
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    Specifications
    HS Code 467517
    Density 0.905 g/cm³
    Melt Flow Rate 10 g/10 min (230°C/2.16 kg)
    Tensile Strength At Yield 36 MPa
    Elongation At Break 12%
    Flexural Modulus 1600 MPa
    Izod Impact Notched At 23 C 35 J/m
    Heat Deflection Temperature At 0 46 Mpa 105 °C
    Vicat Softening Temperature 155 °C
    Melting Point 165 °C
    Rockwell Hardness R 108

    As an accredited Braskem PP Homopolymer F1000HC2 factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing Braskem PP Homopolymer F1000HC2 is supplied as free-flowing pellets in 25 kg moisture-resistant bags, ensuring safe handling and product integrity.
    Container Loading (20′ FCL) 20′ FCL container loading of Braskem PP Homopolymer F1000HC2, polypropylene resin, packed in woven bags on pallets, safely secured.
    Shipping Braskem PP Homopolymer F1000HC2 is supplied as solid polypropylene pellets in 25 kg bags, palletized and stretch-wrapped. It is non-hazardous under transport regulations. Protect from moisture, direct sunlight, and excessive heat. Store in a dry, ventilated warehouse and handle carefully to avoid bag damage and contamination.
    Storage Store Braskem PP Homopolymer F1000HC2 in a cool, dry, well-ventilated area away from direct sunlight, heat, and ignition sources. Keep containers sealed and protected from moisture, mechanical damage, and contamination. Store indoors on clean surfaces, away from oxidizers and strong chemicals. Proper storage preserves material quality and processing performance.
    Shelf Life Shelf life is indefinite when stored in a dry, cool place away from UV sunlight and contaminants.
    Application of Braskem PP Homopolymer F1000HC2

    In meltblown nonwoven lines equipped with spinneret hole diameters of 0.15–0.35 mm and hot air temperatures maintained between 260°C and 290°C, Braskem F1000HC2 homopolymer is processed without additional visbreaking agents owing to its inherently narrow molecular weight distribution and a melt flow rate of 100 g/10 min (ISO 1133-1:2022, 230°C/2.16 kg). The die-to-collector distance (DCD) is typically set in the range of 150–300 mm; deviations beyond a ±25 mm window have been observed on full-scale Reicofil-style lines to shift mean fiber diameter by 1.2–1.8 µm and reduce filtration efficiency by more than 4 percentage points at the 0.3 µm particle challenge level. A phosphite/hindered phenol antioxidant masterbatch is introduced at 0.6–1.2 wt% to suppress thermo-oxidative chain scission during extruder residence times of 3–7 min. Terminal fabrics—typically single-layer or SMS composites—are subjected to ASTM F2100-23 testing for bacterial filtration efficiency (BFE ≥ 98%), differential pressure (ΔP < 5.0 mm H₂O/cm²), and sub-micron particulate filtration. Compliance under EU Regulation 2017/745 (MDR) for medical face masks requires biocompatibility data per ISO 10993-5 and ISO 10993-10, while the meltblown medium itself must satisfy oil mist loading criteria of NIOSH 42 CFR Part 84 when manufactured into N95-type respirators.

    What Defines the Processing Window for High-Flow PP in Spunbond Hygiene Top Sheets?

    In continuous spunbond filament production on systems with 250–400 holes per meter of die width and quench air supply at 12–18°C, Braskem F1000HC2 frequently appears as a flow modifier in physical blends with a 25–35 MFR homopolymer at a let-down ratio of 30–50 wt% F1000HC2. This formulation yields an average melt-phase viscosity of 80–120 Pa·s at a shear rate of 1000 s⁻¹ and a die temperature of 220–240°C, enabling filament diameters of 18–22 µm without spin-line breaks. The additive package remains identical to that in meltblown operations but is reduced to 0.4–0.8 wt% due to lower exposure to oxidative air jets. Terminal product specifications for nonwoven hygiene top sheets reference ISO 9073-2:1995 for tensile strength (machine direction ≥ 45 N/5 cm), ISO 9073-6:2000 for liquid strike-through time, and ISO 11737-1:2018 for bioburden control. Regional diaper and feminine care applications additionally require adherence to the EU Ecolabel criteria (Commission Decision 2014/763/EU) and voluntary Oeko-Tex Standard 100 Annex 4 for extractable heavy metals below 1.0 mg/kg.

    When Braskem F1000HC2 functions as a carrier resin in masterbatch formulations processed on co-rotating twin-screw extruders with an L/D ratio of 44:1 and a screw speed of 350–600 rpm, the intrinsic melt flow rate of 100 g/10 min delivers a specific mechanical energy input of 0.18–0.25 kWh/kg during dispersion of 40–60 wt% inorganic pigments or 15–30 wt% hindered amine light stabilizers. Pre-drying at 80°C for 2 hours is recommended when ambient relative humidity exceeds 60%, as surface moisture films of just 0.02 mm thickness on granules have been linked to melt-phase hydrolysis of phosphite stabilizers and subsequent black speck formation in extruded strand dimensions below 3.0 mm. The resulting masterbatch granules are let down into injection-molded or extruded goods at 1.5–4.0%, and the final article must conform to EN 12877-2:2000 for colour fastness in plasticised PVC-free compositions and to FDA 21 CFR §178.3297 (Colorants for Polymers) for indirect food-contact acceptability. Typical terminal products include HDPE bottle cap colour concentrates and PP agricultural twine UV-stabilized masterbatch.

    Thin-Wall Container Molding — Flow-Length-to-Wall-Thickness Thresholds

    High-speed injection molding of dairy cups and margarine tubs with wall sections of 0.35–0.55 mm exploits the 100 g/10 min melt flow rate to reach flow-length-to-wall-thickness ratios exceeding 350:1 while maintaining clamp forces below 5.0 tonnes on 4-cavity cold-runner tools. Melt temperatures are controlled within 230–260°C and mold temperatures at 15–30°C to achieve a cycle time of 3.8–4.5 seconds. The formulation typically includes 0.05–0.15 wt% of a nucleating agent (sodium benzoate or phosphate ester salts) to elevate crystallization onset temperature by 8–12°C and reduce post-mold shrinkage below 1.2% as measured by ASTM D955-08(2022). Drop impact resistance is validated via ASTM D2463-15 Procedure B at -20°C; containers must survive a 1.2 m drop without rupture. Food-contact compliance is anchored to FDA 21 CFR §177.1520(c) 1.1a with overall migration limits per EU 10/2011, 10 mg/dm², and specific migration of bisphenol A and phthalates is confirmed to be below the detection limit of 0.01 mg/kg via EN 1186-1:2002 simulant D testing.

    Gamma-Sterilizable PP Homopolymer for Disposable Diagnostic Consumables

    Injection-molded petri dishes, specimen transport containers, and reaction cuvettes requiring terminal sterilization by gamma radiation at 25–50 kGy are manufactured from F1000HC2 compounded with a synergistic antioxidant system that combines a high-molecular-weight hindered phenolic primary antioxidant (0.10–0.25 wt%) and a lactone-based radical scavenger (0.05–0.12 wt%). Unstabilized homopolymer grades subjected to 50 kGy develop a yellowness index increase of 12–18 units (per ASTM E313-20) and embrittlement within 6 months of ambient storage; the specified additive combination restricts ΔYI to ≤4.0 and retains elongation at break above 150% after 24 months of real-time aging as per ASTM D638-14 Type IV. The molding process uses hot-runner valve-gate systems with mold temperature uniformity of ±1.5°C and cleanroom classification ISO 14644-1 Class 8. Biocompatibility evaluation follows ISO 10993-1:2018 endpoint selection tables and specifically requires cytotoxicity tests (ISO 10993-5), intracutaneous reactivity (ISO 10993-10), and hemolysis (ISO 10993-4). Finished devices also comply with USP <88> Class VI for in vivo biological reactivity and EP 3.1.3 for polyolefins.

    Injection molding of tamper-evident closures for UHT dairy beverages and still water packaging with thread engagement heights of 6–9 mm and wall thicknesses at the hinge root of 0.4–0.7 mm subjects the melt to shear rates exceeding 10⁴ s⁻¹ during gate passage. The 100 g/10 min MFR permits filling of the annulus geometry with an injection pressure of 900–1100 bar, but the formulation must include 0.15–0.25 wt% of an erucamide slip agent to ensure opening torques of 1.0–1.8 Nm according to ASTM D2063-12 and 0.05–0.10 wt% of a synthetic silica anti-blocking agent to prevent nesting during high-speed capping at 800–1200 closures/min. Elevated slip-agent levels beyond 0.35 wt% have been documented on 48-cavity Arburg Allrounder lines to induce plate-out on mold vents and degrade surface gloss below 60 GU at 60° measurement angle (ISO 2813:2014). The closures are evaluated for migration under EU 10/2011 simulant A (10% ethanol) and simulant C (20% ethanol) with a detection limit of 0.01 mg/dm², and sensory taint testing follows EN 1622:2006 threshold odour number ≤3.

    Regulatory and Standards Matrix — F1000HC2 Applications
    Application ScenarioPrimary Compliance StandardCritical Test DesignationLimits / Conditions
    Meltblown FiltrationNIOSH 42 CFR Part 84NaCl aerosol loading, 200 mgMax inhalation resistance ≤ 35 mm H₂O initial, ≤ 50 mm H₂O final
    Hygiene SpunbondOeko-Tex Standard 100, Annex 4Extractable Sb, As, Pb, Cd, Cr< 1.0 mg/kg each
    Food Packaging ContainersFDA 21 CFR §177.1520(c) 1.1aOverall migration (EU 10/2011)≤ 10 mg/dm²
    Masterbatch CarrierFDA 21 CFR §178.3297Colour extractives in heptaneNon-detectable at 21°C, 2 h
    Medical DiagnosticsUSP <88> Class VISystemic injection, intracutaneous reactivity0% erythema/oedema score
    Dairy ClosuresEN 1622:2006TON (Threshold Odour Number)≤ 3
    Injection Molding Process Envelope — High-Speed Packaging & Medical
    ParameterThin-Wall Dairy CupPetri Dish (Medical)
    Melt Temperature230–260°C215–245°C
    Mold Temperature15–30°C25–40°C
    Injection Speed (screw advance)120–180 mm/s60–100 mm/s
    Holding Pressure (hydraulic)400–650 bar350–500 bar
    Cycle Time (bell-to-bell)3.8–4.5 s5.2–6.8 s
    Mold Vent Depth (polishing)0.02–0.03 mm0.015–0.025 mm
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    Certification & Compliance
    More Introduction

    Rheological Signature and Molecular Architecture

    Meltblown-grade polypropylene demands a melt flow profile substantially divergent from that of bulk injection or extrusion homopolymers. Braskem PP F1000HC2 delivers a nominal melt mass-flow rate (MFR) of 1000 g/10 min when tested under 230 °C and 2.16 kg load in accordance with ASTM D1238-20 (Procedure A) and ISO 1133-1:2022. This value situates the resin within the ultra-high-fluidity quadrant necessary for fiber diameters routinely below 5 µm. The measured density, 0.905 g/cm³ (ASTM D792, Method B), reflects the isotactic homopolymer backbone and absence of comonomer, while the Vicat softening point, recorded at 155 °C (ASTM D1525, Rate A/50), confirms a crystallinity fraction consistent with Ziegler-Natta catalysis. Gel permeation chromatography in 1,2,4-trichlorobenzene at 160 °C indicates a weight-average molecular weight (Mw) concentrated in a range where the zero-shear viscosity drops below 10 Pa·s at 230 °C, enabling the rapid stress relaxation required for meltblowing. Dynamic oscillatory measurements performed on a parallel-plate rheometer (frequency sweep, 0.1–100 rad/s, strain amplitude 5 %) reveal a polydispersity index (PDI) of approximately 3.0–3.5, narrowing the molecular weight distribution relative to standard film grades. The controlled chain architecture suppresses die-lip drool formation and reduces shot-to-shot variation in fiber attenuation, a chronic failure mode on high-speed meltblown beams employing spinneret hole densities above 35 holes per inch. Smaller PDI values, however, amplify sensitivity to peroxide-induced chain scission during purging of upstream extrusion equipment; thus, the resin is incompatible with radical-generating cleaning compounds unless the system is fully purged with a sacrificial lot.

    What Limits the Processing Envelope on High-Throughput Meltblown Lines?

    The practical processing window narrows sharply when F1000HC2 is run on Reicofil R4 or R5 meltblown configurations equipped with 30:1 L/D single-screw extruders. Barrel temperature profiling—feeding zone at 180 °C, compression zone ramp to 230 °C, metering zone flat at 235 °C—prevents unmolten granule carryover into the screen changer, a fault that generates catastrophic pressure spikes exceeding 200 bar upstream of the breaker plate. Die body temperature is maintained within 240–260 °C, while the heated process air, delivered via a Koch-type or slot-jet manifold, must reach 270–290 °C at the die exit. Below 260 °C air temperature, incomplete fiber drafting produces shot, unacceptable in BFE (Bacterial Filtration Efficiency) testing per ASTM F2100-21. Above 290 °C, volatile oligomer generation accelerates, quantified as an increase in extractable fraction from 0.4 % to beyond 1.2 % (hexane reflux, FDA 21 CFR 177.1520 extraction protocol), compromising olfactory and organoleptic properties in hygiene end-uses. Die-to-collector distance (DCD) directly governs web uniformity and hydrohead resistance. At DCD values under 150 mm, fibers land semi-molten, yielding a self-bonding network with higher tensile index but reduced permeability; at DCD beyond 300 mm, the filament temperature drops below the crystallization onset, generating a lofted structure with larger pore size. Production-scale trials on a 1.6-meter-wide Oerlikon Neumag meltblown system confirmed that a DCD of 200 mm, combined with air pressure of 0.08 MPa at the die tip, balances filter efficiency (≥ 98 % NaCl aerosol at 0.3 µm) and pressure drop (≤ 60 Pa for a 25 g/m² web), consistent with EN 14683:2019 Type IIR face mask requirements.
    Table 1 – Comparative Specification Matrix for Braskem Homopolymer Grades and External Meltblown References
    Parameter Braskem F1000HC2 Braskem H103 Braskem CP 442 XP ExxonMobil PP3546G
    MFR (230 °C, 2.16 kg) 1000 g/10 min 12 g/10 min 35 g/10 min 1200 g/10 min
    Test Method ASTM D1238 / ISO 1133 ASTM D1238 ASTM D1238 ISO 1133
    Density (23 °C) 0.905 g/cm³ 0.905 g/cm³ 0.905 g/cm³ 0.904 g/cm³
    Tensile Strength at Break (50 mm/min) 35 MPa 38 MPa 34 MPa 32 MPa
    Elongation at Break 12 % 15 % 9 % 10 %
    Melting Point (DSC, 10 °C/min) 163 °C 165 °C 164 °C 162 °C
    Primary Processing Technology Meltblown nonwovens Compression molding, profiles Thin-wall injection molding Meltblown, spunbond
    FDA 21 CFR 177.1520 (c) Status Compliant, items 3.1a–3.2a Compliant Compliant Compliant
    When production trials substitute F1000HC2 into a standard spunbond-grade extruder setup, the absence of sufficient melt strength—directly correlated to the ultra-low molecular weight—collapses filament integrity beyond the spinneret. Spunbond fabrics (typically 12–40 g/m²) demand an MFR ceiling near 55 g/10 min to survive the high-velocity air drag and draw-down ratios exceeding 250:1. F1000HC2, by design, sacrifices this mechanical robustness to achieve the submicron fiber capability mandatory for filtration layers. Switching from a Braskem CP 442 XP (35 g/10 min) injection-molding resin to F1000HC2 on a meltblown line reduces the extruder drive load by 15–18 % at identical screw speed (80 rpm), as logged on a 75 kW AC motor driving a 120 mm single-screw, but the melt curtain becomes markedly more susceptible to ambient air turbulence within the quench zone. Inclusion of process stabilizers and anti-gas-fading packages in F1000HC2 is managed at the polymerization stage through donor-controlled catalyst technology. Modification of the additive suite via dry blending of masterbatch—especially carbon black, TiO₂, or hydrophilic spin finishes—must account for viscosity mismatch. Differential scanning calorimetry (DSC) traces of extruded web samples exhibit a crystallization half-time shift of +2.5 seconds for each 1 wt% of high-density polyethylene (HDPE) carrier resin present in the masterbatch, an effect that widens fiber diameter distribution when compounded on a 25 mm co-rotating twin-screw side feeder integrated into the meltblown line. Processors aiming for black (L< 25) meltblown media therefore pre-select masterbatches based on a PP homopolymer carrier with MFR not less than 800 g/10 min to prevent filter-screen pressure fluctuations exceeding 5 bar.

    When Fibre Bonding Must Survive Gamma Irradiation in Sterile Medical Packaging

    Radiation sterilization imposes a chain-scission-dominated degradation trajectory that is markedly accelerated in ultra-high-MFR polypropylene. F1000HC2, following 25 kGy of gamma irradiation (Cobalt-60 source, dose rate 2 kGy/h), exhibits a decline in web tensile strength of approximately 40 % as characterized by strip tensile testing (ASTM D5035, 100 mm/min jaw speed). The degradation mechanism proceeds through β-scission of tertiary carbon radicals formed during H-abstraction, which in a low-Mw matrix generates oligomeric fragments that migrate to the fiber surface and increase the coefficient of friction. This behaviour precludes F1000HC2 from use in sterile barrier systems where the nonwoven must retain structural integrity after irradiation. Published data for this specific configuration—meltblown PP homopolymer at 1000 g/10 min subjected to repeated sterilization cycles—remains limited; processors seeking validation for medical packaging under ISO 11137-1 therefore default to irradiation-compatible PP random copolymers or polyolefin elastomer blends when sterility is non-negotiable. The grade demonstrates satisfactory resistance to ethylene oxide (EtO) sterilization under standard hospital conditions (55 °C, 70 % relative humidity, gas concentration 600 mg/L, 6-hour cycle), with residual EtO levels post-aeration measured below 4 µg/g (ISO 10993-7) and no statistically significant change in melt flow. However, prolonged post-sterilization storage at temperatures above 40 °C reduces the crystallinity index (measured via differential scanning calorimetry) by 3–5 %, shifting the web’s hydrostatic pressure rating toward the lower end of the specification range.
    Table 2 – Regulatory and Compliance Framework Applicable to F1000HC2 in Hygiene and Filtration End-Uses
    Standard / Regulation Scope Specific Provision Relevant to F1000HC2
    FDA 21 CFR 177.1520 Olefin polymers in food-contact articles Paragraph (c) items 3.1a and 3.2a; extractable limits for hexane and xylene at reflux temperatures
    EU No 10/2011 (and amendments) Plastic materials and articles intended to come into contact with food Overall migration limit 10 mg/dm²; specific migration limits for PP oligomers; compliance verified through simulant D1 (50 % ethanol)
    ASTM F2100-21 Performance specification for medical face mask materials Bacterial filtration efficiency (BFE) ≥ 95 % (Level 1) or ≥ 98 % (Level 2/3); differential pressure requirements met through web basis weight adjustment
    EN 14683:2019 Medical face masks – requirements and test methods Type IIR splash resistance pressure ≥ 16 kPa for composite structures incorporating F1000HC2 meltblown layer
    REACH (EC) No. 1907/2006 Registration, Evaluation, Authorisation of Chemicals Substance registered as polypropylene homopolymer; no Substances of Very High Concern (SVHC) above 0.1 % w/w
    RoHS 2011/65/EU (recast) Restriction of hazardous substances Cadmium, lead, mercury, hexavalent chromium, PBBs, PBDEs below threshold tolerances in base resin
    Oeko-Tex® Standard 100 (Annex 4, Class I) Testing for harmful substances in textiles Certified product-level portfolios using F1000HC2 comply with infant-article criteria for formaldehyde, heavy metals, and phenolic compounds
    F1000HC2 enters the meltblown process with a residual moisture content below 0.05 % when stored in sealed octabins under ambient warehouse conditions not exceeding 60 % relative humidity. Should storage outside these parameters occur, pre-drying in a desiccant dryer at 80 °C for 2 hours (dew point −40 °C) restores spinnability and eliminates micro-vacoules that otherwise nucleate die-lip exit swell instabilities. Hydrolytic degradation is not a concern given the saturated hydrocarbon backbone; the drying step addresses physical moisture adsorption at the pellet surface only. Differentiation from competitive meltblown grades centers on the consistency of fiber diameter distribution under continuous production. While generic 1000 MFR resin lots display a coefficient of variation (CoV) in fiber diameter of 18–22 % across a 1.6-meter die width, F1000HC2, utilizing Braskem’s controlled rheology peroxide visbreaking process, narrows that CoV to 12–15 % as documented by scanning electron microscopy image analysis of triplicate 500-fiber counts. This uniformity equates to 3–5 % higher mean BFE at equivalent basis weight, a margin that allows downgauging of the meltblown layer in spunbond-meltblown-spunbond (SMS) laminates from 15 g/m² to 13 g/m² without breaching EN 14683 Type IIR filtration efficiency thresholds. The associated reduction in raw-material consumption and corresponding energy savings during extrusion—quantified as 0.18 kWh per kilogram of web output on a 200 kg/h line—align with sustainability-linked supply-chain targets increasingly mandated by global hygiene converters.
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