Sinopec Fujian HDPE BM1048F
- Product Name: Sinopec Fujian HDPE BM1048F
- Factroy Site: Yudu County, Ganzhou, Jiangxi, China
- Price Inquiry: admin@ascent-chem.com
- Manufacturer: Ascent Petrochem Holdings Co., Limited
- CONTACT NOW
- Sinopec Fujian HDPE BM1048F is typically used in formulations when melt flow rate, density, and molecular weight distribution and melt temperature, mold temperature, and blow pressure must be controlled within specific ranges.
| HS Code | 874453 |
| Polymertype | High-density polyethylene (HDPE) |
| Density | 0.948 g/cm³ |
| Meltflowrate | 0.08 g/10 min (190 °C/2.16 kg) |
| Meltingpoint | 130 °C |
| Vicatsofteningpoint | 122 °C |
| Tensileyieldstrength | 23 MPa |
| Elongationatbreak | >600% |
| Flexuralmodulus | 1000 MPa |
| Notchedizodimpactstrength | 250 J/m |
| Environmentalstresscrackresistance | >1000 h |
| Hardnessshored | 60 |
| Thermaldeformationtemperature | 75 °C |
| Oxidationinductiontime | >20 min |
As an accredited Sinopec Fujian HDPE BM1048F factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Sinopec Fujian HDPE BM1048F is packaged in 25 kg polyethylene-lined woven bags, available in 1,000 kg palletized loads for bulk handling. |
| Container Loading (20′ FCL) | 20′ FCL container loading of Sinopec Fujian HDPE BM1048F, packed in 25kg PP bags, palletized, shrink-wrapped, and securely stowed. |
| Shipping | Sinopec Fujian HDPE BM1048F is a non-hazardous polyethylene resin. It is typically shipped in 25 kg bags or 1000 kg jumbo bags, palletized and shrink-wrapped. Transport in clean, dry containers or trucks, avoiding moisture, heat, direct sunlight, and contamination. No special dangerous-goods documentation is required. |
| Storage | Store Sinopec Fujian HDPE BM1048F in a cool, dry, well-ventilated warehouse away from direct sunlight, heat, sparks, and flames. Keep bags or containers tightly closed to prevent moisture, dust, and contamination. Avoid prolonged UV exposure. Stack pallets securely at moderate height. Maintain ambient temperature, ideally below 50°C, and separate from strong oxidizers. Handle with care to avoid bag damage. |
| Shelf Life | Sinopec Fujian HDPE BM1048F has an approximate shelf life of 24 months when stored cool, dry, and protected from direct sunlight. |
Sinopec Fujian HDPE BM1048F is converted on reciprocating screw extrusion blow moulding lines equipped with grooved-barrel extruders and barrier screws having L/D ratios from 24:1 to 30:1. The nominal melt flow rate is 0.48 g/10 min at 190 °C under 2.16 kg load per ISO 1133-1:2022, and the density is 0.948 g/cm³ per ISO 1183-1:2019. For 500 mL pasteurised milk bottles, the process window uses a flat or slightly reverse temperature profile from hopper to die: 170 °C at the feed zone, 190 °C at the compression zone, 195 °C at the metering zone, and 190–195 °C at the die head. A divergent die with a land length-to-gap ratio between 10:1 and 15:1 is fitted. The die gap is set at 1.8 mm to 2.2 mm for a parison target weight of 12–14 g per bottle. Mould cooling water is held at 8–12 °C. Blow air pressure is 0.6–0.8 MPa. The blow mould is a two-cavity aluminium tool with copper-beryllium pinch inserts. Wall thickness after trimming at the body is 0.45–0.60 mm, and at the pinch weld 0.55–0.70 mm. Natural unpigmented resin is used for milk bottles. If white opaque bottles are produced, titanium dioxide masterbatch is added at 2–3 wt%. Food contact compliance is evaluated under 21 CFR 177.1520(c) for olefin polymers and under European Regulation (EU) No 10/2011 as amended. Terminal articles include 250 mL, 500 mL, and 1 L milk bottles with aluminium foil induction-sealed closures. Hot filling is not recommended above 60 °C because wall deformation initiates near the Vicat softening range of the grade. Downstream filling validation using ISO 306 method A50 is required when high-temperature cleaning is specified.
Does Parison Sag Constrain Cosmetic Bottle Geometry at Elevated Melt Temperature?
In short-neck cosmetic bottles with oval and elliptical cross-sections, parison sag controls the minimum wall thickness before blow-up. BM1048F exhibits a low melt flow rate of 0.48 g/10 min; this limits sag under a parison length exceeding 120 mm when the melt temperature is kept below 200 °C. Continuous extrusion machines with parison programming heads are used rather than accumulator heads for shot weights below 150 g. The programming gap is reduced by 15–20% at the top of the parison to compensate for thinning at the neck. Only approved colour masterbatch is added at 1–2 wt%. Mould release agents are excluded unless a subsequent washing stage is installed. Blow mould surface finish is polished to SPI A-2, and mould temperature is maintained at 15–20 °C. A finished 100 mL lotion bottle has a body wall thickness of 0.6 mm and a base corner thickness not less than 0.5 mm. Drop impact is tested at 1.2 m on filled containers per ASTM D2463-15. Stress cracking is evaluated after 48 h exposure to a model surfactant solution of 10% nonylphenol ethoxylate at 50 °C under ASTM D1693 condition B. Packaging safety is assessed within the cosmetic product safety report under Regulation (EC) No 1223/2009, and restricted substances are controlled under REACH Annex XVII. Terminal formats include 50 mL, 100 mL, and 200 mL shampoo and body wash bottles with PP flip-top closures. Formulations containing ethanol above 15 wt% or propylene glycol monomethyl ether acetate require pre-validation because ester/ether solvents plasticise the polyethylene matrix and reduce environmental stress crack resistance. Published data for this specific configuration is limited; pre-production qualification on the target tool is recommended.
ESCR-Dominated Wall Specification for Household Chemical Containers
Household chemical packaging for laundry detergents, fabric conditioners, and oxidising surface cleaners imposes the most severe environmental stress crack resistance requirement on blow-moulded HDPE. BM1048F is processed at a melt temperature of 185–205 °C with a parison die gap of 2.0–3.0 mm on shuttle or single-station machines. The target wall thickness for a 1 L detergent bottle is 0.7–1.0 mm at the body and not less than 0.6 mm at the base corner. The handle pinch area is adjusted through parison programming to maintain 0.8 mm minimum thickness after pinch-off. ESCR qualification is conducted according to ASTM D1693 condition B with 10% Igepal CO-630 at 50 °C; condition A with 100% Igepal CO-630 is also applied when the packaged formulation contains high concentrations of nonionic surfactants. Test specimens are prepared from moulded bottle walls, not compression-moulded plaques, to capture orientation and thermal history effects. The lot passes only when no brittle failure is observed before 96 h in condition A and before 300 h in condition B. For sodium hypochlorite bleach solutions above 5% active chlorine, the compound must incorporate a stabiliser package containing hindered phenolic antioxidant and a UV absorber. Unpigmented natural resin is not recommended for translucent bleach bottles exposed to fluorescent retail lighting. Titanium dioxide at 2–4 wt% or carbon black at 0.5–1.5 wt% is typical. The melt temperature is limited to 205 °C to avoid peroxide decomposition in the bleach formulation during subsequent hot filling, even though the polymer itself can tolerate higher temperatures. Packaging and labelling are assessed for consistency with Regulation (EC) No 1272/2008. Terminal products include 500 mL, 1 L, and 2 L detergent bottles, 5 L refill bottles, and trigger spray bottles for dilute alkaline cleaners. Batch-to-batch swell variation of ±4% has been observed on production lines with the same die gap and melt pressure; parison length and shot weight are re-qualified after every silo change.
| Condition | Test fluid | Temperature | Specimen geometry | Pass criterion for household chemical grade |
|---|---|---|---|---|
| ASTM D1693 Condition A | 100% Igepal CO-630 | 50 °C | Bent strip, 0.5 mm notch | No failure before 96 h |
| ASTM D1693 Condition B | 10% Igepal CO-630 | 50 °C | Bent strip, 0.5 mm notch | No failure before 300 h |
| ASTM D1693 Condition C | 100% Igepal CO-630 | 60 °C | Bent strip, 0.5 mm notch | Qualification only when hot-fill above 50 °C is required |
Pharmaceutical tablet containers produced from BM1048F are typically extrusion blow moulded in cleanroom-adjacent areas with filtered mould cooling and ionised air for neck chute de-flashing. The melt temperature is held between 180 °C and 195 °C to minimise odour and taste carry-over. Mould release agents are excluded unless a subsequent FDA-compliant washing stage is installed. Plastic packaging qualification follows USP <661.1> for plastic packaging systems and Ph. Eur. 3.1.3 for polyolefins. Water vapour transmission rate is measured on the moulded wall according to ISO 15106-3; the value is used to calculate desiccant fill mass for a 24-month moisture budget. Typical container sizes range from 30 mL to 500 mL with continuous-thread neck finishes. A 100 mL tablet bottle has a body wall thickness of 0.8 mm and a base wall thickness of 0.7 mm. Child-resistant closures require neck dimensional stability within ±0.1 mm on the thread minor diameter. Terminal products include HDPE bottles for solid oral dosage forms, vitamin tablets, and desiccant canisters. Absorption of active pharmaceutical ingredients into the polyethylene matrix is substance-specific. Published data for this specific configuration is limited, and spiked storage studies at 40 °C/75% RH are required for each new formulation.
When 20-L Jerry Cans Require Drop Impact Integrity at -20 °C
Accumulator-head extrusion blow moulding machines with parison programmers are used for 20 L and 25 L jerry cans because continuous extrusion cannot deliver a stable parison mass above 2 kg. The BM1048F melt temperature is set at 185–200 °C at the die; the accumulator head holds the shot at 190 °C and discharges the parison in 3–5 s. Die gap profiles are programmed to increase wall thickness in the top load-bearing corners and the bottom chime area. The mould clamp force for a 20 L jerry can is normally 250–400 kN, and cooling time is 45–70 s depending on water temperature and part weight. A finished 20 L jerry can has a nominal body wall thickness of 1.5–2.0 mm, a top panel thickness of 2.0 mm, and a bottom chime thickness of 2.5 mm. Drop impact is tested at -20 °C after conditioning for 48 h. A filled 20 L container is dropped from 1.2 m onto a concrete floor according to ASTM D2463-15, with no leakage permitted at the pinch seam or cap. Top load is measured according to ASTM D2659-16 at 23 °C and must exceed 1.5 kN before column buckling. For transport of hazardous substances, jerry cans are tested under UN Model Regulations Chapter 6.1 and ADR/RID as applicable. Internal hydraulic pressure resistance can be evaluated using ISO 16101 for dangerous goods packagings. Terminal products include 20 L stackable jerry cans for liquid detergents, food-grade oils, and industrial cleaning fluids. If the same tool is used for hydrocarbon-based fluids, pre-validation with ASTM D543 immersion testing is required because hydrocarbon absorption reduces wall stiffness and can lower top-load values by 10–20%.
Coextruding BM1048F as the Structural Layer in EVOH Barrier Bottles
A six-layer structure comprising HDPE/tie/EVOH/tie/regrind/HDPE is processed on a coextrusion blow moulding machine with three extruders. BM1048F forms both skin and inner layer. The HDPE extruder is run at 200–220 °C, the tie-layer extruder at 190–210 °C, and the EVOH extruder at 200–220 °C with a nitrogen blanket to prevent oxidative gelation. Layer distribution is controlled by a spiral mandrel die. The EVOH layer is held at 5–8% of total wall thickness, the tie layers at 2–3% each, and the BM1048F structural layers with regrind at 85–90%. Wall thickness of a 500 mL bottle is 0.7 mm. The die gap is 2.5 mm. Viscosity matching between BM1048F and the tie layer is critical; BM1048F has a higher melt viscosity than typical tie resins with a melt index of 1.0–2.0 g/10 min. If the tie layer viscosity is too low, interfacial instability appears as wavy layer lines. Adhesion between HDPE and tie is checked by ASTM D1876 T-peel on coextruded sheet; peel strength above 2 N/15 mm is considered acceptable. Oxygen transmission rate is measured at 23 °C and 0% RH according to ASTM D3985. Bottles with 6% EVOH typically show OTR below 0.5 cm³/(m²·day) per wall thickness, but final values depend on layer thickness and orientation. Regrind ratio is limited to 30% unless the EVOH layer percentage is increased to compensate for barrier dilution. Food-contact status is governed by 21 CFR 177.1520 and (EU) No 10/2011. Terminal products include 250 mL and 500 mL multilayer bottles for oxygen-sensitive food sauces, edible oil, and agrochemical formulations. The use of BM1048F as the outer layer provides stiffness and moisture resistance, while the inner HDPE layer prevents direct contact between the packaged liquid and the EVOH layer when the liquid contains water or surfactants. If the packaged product contains limonene or other terpenes, the barrier layer may delaminate because these solvents penetrate the polyolefin layer and swell the tie layer. A dedicated storage test at 40 °C for 90 days is required before commercialisation.
Competitive Sinopec Fujian HDPE BM1048F prices that fit your budget—flexible terms and customized quotes for every order.
For samples, pricing, or more information, please contact us at +8618136850665 or mail to admin@ascent-chem.com.
We will respond to you as soon as possible.
Tel: +8618136850665
Email: admin@ascent-chem.com
Get Free Quote of Ascent Petrochem Holdings Co., Limited
Flexible payment, competitive price, premium service - Inquire now!
- Sinopec Fujian HDPE BM1048F is manufactured under an ISO 9001 quality system and complies with relevant regulatory requirements.
- COA, SDS/MSDS, and related certificates are available upon request. For certificate requests or inquiries, contact: admin@ascent-chem.com.
Sinopec Fujian HDPE BM1048F is a bimodal high-density polyethylene resin manufactured by Sinopec Fujian Refining & Chemical Co., Ltd. The grade is engineered specifically for blown-film extrusion. Its nominal density is 0.948 g/cm³ when determined according to ISO 1183-1:2019, and its high-load melt index is 8.0 g/10 min at 190 °C/21.6 kg when determined according to ISO 1133-1:2022. These values locate BM1048F within the stiff segment of HDPE film resins, separated both from fractional-melt HDPE grades used for thick-wall industrial liners and from high-flow grades used in extrusion coating. The product is supplied as pellets and is intended for high-stiffness packaging films, carrier bags, folded sacks, and overwrap structures in which gauge reduction, tensile strength, and moisture barrier are primary design variables.
The grade designation follows the manufacturer’s nomenclature: the prefix BM is associated with bimodal reactor architecture, the numeric block 1048 corresponds to the density band, and the suffix F designates film processing. This nomenclature should not be read as a substitute for the lot-level certificate of analysis. Converters should use actual lot values for melt index, density, additive package, and gel rating before setting process conditions.
What Does the Bimodal Molecular Architecture Alter in Flow and Bubble Stability?
The bimodal molecular weight distribution in BM1048F separates the rheological roles of low-molecular-weight chains and high-molecular-weight chains. Under high shear rates produced in spiral mandrel dies—commonly between 100 s⁻¹ and 1000 s⁻¹—the low-molecular-weight fraction lowers apparent viscosity and reduces extruder motor load per kilogram of melt. Under the low-shear or extensional conditions encountered in bubble formation and stalk drawing, the high-molecular-weight fraction contributes melt strength and resistance to bubble deformation. This separation is more pronounced than in monomodal HDPE film grades of similar density and high-load melt index.
The shear-thinning response can be characterized by dynamic oscillatory shear according to ISO 6721-10, typically by comparing complex viscosity at 0.1 rad/s and 100 rad/s. For bimodal HDPE grades of this density and high-load melt index, the viscosity ratio is higher than for monomodal resins with equivalent flow values. Published data specific to BM1048F oscillatory rheology is limited, but the relationship between bimodal architecture and viscosity ratio is consistent across similar grades. The practical consequence on film extrusion lines is that BM1048F can be processed at lower melt temperatures or higher output than a monomodal HDPE of equivalent high-load melt index, provided the die design allows sufficient relaxation of the higher melt elasticity before the air ring.
The comonomer distribution in bimodal HDPE also influences crystallinity and tie-molecule concentration. The density of 0.948 g/cm³ reflects overall crystallinity, but molecular architecture controls the amorphous-phase connectivity that contributes to dart impact and tear resistance. In blown film, dart drop impact is evaluated according to ISO 7765-1, and tear resistance according to ISO 6383-2. A monomodal HDPE with the same density may achieve similar tensile modulus but commonly sacrifices impact when film gauge is reduced below 30 µm. The bimodal design of BM1048F is intended to retain a higher tie-molecule population at this density.
On production-scale blown-film lines equipped with 75 mm to 90 mm grooved-feed extruders and 30:1 L/D barrier screws, melt temperature at the adapter is typically maintained between 190 °C and 230 °C. The exact temperature profile depends on output rate, die diameter, and regrind content. A flat-to-reverse profile is often used, with the feed section at 180 °C to 190 °C and the metering zone at 210 °C to 230 °C. The use of a die gap from 0.8 mm to 1.2 mm with blow-up ratios from 2.0:1 to 3.0:1 provides a starting envelope for gauge uniformity. These values are not grade-specific operating limits; they represent the processing band used for high-density film of this density and high-load melt index.
Failure modes observed on such lines include asymmetric frost-line height, melt fracture at high output, and gauge bands caused by die-lip fouling. The onset of melt fracture is assessed visually and correlated with die pressure. In capillary rheometry, a 30:1 L/D die with 180° entry angle is used according to ISO 11443 to determine the critical shear rate. BM1048F generally tolerates a higher critical shear rate than a high-molecular-weight monomodal film grade of equivalent melt index, but the exact value depends on die temperature, additive package, and screw design. A change of 1 g/10 min in high-load melt index can require adjustment of die gap or outlet temperature to maintain stable gauge control.
Comparative Positioning Against Monomodal HDPE and Metallocene LLDPE
Against a monomodal HDPE of identical density and high-load melt index, BM1048F is expected to differ in three measurable properties. First, extensional melt strength is higher, as quantified by rheotens testing and referenced to ISO 20965 for extensional viscosity. Second, apparent viscosity under high shear is lower, as measured by capillary rheometry according to ISO 11443. Third, the balance of stiffness and impact in the final film is shifted advantageously when tensile modulus is measured according to ISO 527-3 and dart drop impact according to ISO 7765-1. The higher stiffness derives from the 0.948 g/cm³ density; the retained impact derives from the high-molecular-weight tail. A monomodal resin with the same density may achieve similar modulus but frequently exhibits lower dart drop impact at thicknesses below 30 µm.
Compared with metallocene LLDPE, BM1048F provides higher secant modulus and yield stress under ISO 527-3, but lower dart drop impact and lower Elmendorf tear resistance. The difference is thickness-dependent. Below 25 µm, the impact gap widens, and LLDPE is generally selected when abuse resistance is the controlling requirement. The water vapour transmission rate of HDPE is lower than that of LDPE and many LLDPE films at equal gauge, measured according to ISO 15106-3; this makes BM1048F applicable where moisture barrier and stiffness dominate. Oxygen permeability is measured according to ASTM D3985 and must be assessed on the final film construction rather than inferred from resin density alone.
Within the Sinopec Fujian HDPE portfolio, BM1048F should not be confused with pipe grades, injection molding grades, or film grades of lower density or higher melt index. It is not intended for pressure pipe service under ISO 9080 or for injection molding applications with long flow paths. The molecular design and additive package are not optimized for those conversion processes. Published data for BM1048F in non-film configurations is limited, and substitution into such processes should be avoided without reformulation or grade-specific qualification.
At thicknesses from 12 µm to 60 µm, BM1048F is typically converted into carrier bags, T-shirt bags, industrial liners, and overwrap films. For these applications, film property testing follows ISO 527-3 for tensile strength and elongation, ISO 6383-2 for Elmendorf tear resistance, ISO 7765-1 for dart drop impact, and ASTM F88/F88M for heat-seal strength. The resin is not self-sealing at low temperature. Heat-seal initiation temperature and seal strength are functions of dwell time, pressure, and coextruded sealant composition. In a three-layer coextruded structure, BM1048F may be used as the core or skin layer for stiffness, with an ethylene-α-olefin copolymer sealant layer to lower seal initiation temperature.
The machinability of BM1048F on high-speed bag-conversion lines is evaluated through film blocking and coefficient of friction measurements according to ISO 8295. Anti-block and slip additives are frequently introduced by the converter or compounder; these additives alter the coefficient of friction and corona treatment response. For printing and lamination, surface tension after corona treatment is assessed according to ISO 8296. Typical target values are between 38 mN/m and 44 mN/m, depending on ink system and lamination adhesive. These target values are process settings, not resin specifications.
When Melt Temperature Stratification Across the Die Exceeds 5 °C
Melt temperature stratification across the die circumference is a recurring process failure in high-output blown-film lines. When the temperature difference between adjacent die zones exceeds 5 °C, the local viscosity difference changes die flow distribution and produces asymmetric frost-line height and gauge bands. In high-density film extrusion, a die temperature uniformity of ±3 °C is typically required for stable gauge control, especially at die gaps below 1.0 mm. The resulting thickness non-uniformity can be detected with an online capacitance gauge and quantified according to ISO 4593. BM1048F may reduce thermally induced gauge variation compared with monomodal HDPE because its bimodal architecture lowers viscosity sensitivity to temperature changes under shear, but this does not eliminate the need for uniform die temperature control.
At melt temperatures above 250 °C, oxidation of the high-molecular-weight fraction can occur, causing gel formation and a drop in film impact. Oxidative stability is evaluated by oxidation induction time according to ISO 11357-6. The additive package of BM1048F is formulated for standard blown-film processing, but long residence times at high temperature may exceed the protection provided by the additive system. Converters should purge thoroughly after shutdowns and avoid prolonged hold times above 220 °C. HDPE is not hygroscopic; drying is not routinely required. Where bags have been stored under high humidity above 60% relative humidity, surface moisture can enter the feed throat and create bubble pinholes. In those conditions, pre-drying at 80 °C for 4 h using a desiccant or hot-air dryer is applied. Pre-drying below that threshold is not necessary.
For food-contact film structures, compliance with FDA 21 CFR 177.1520 or EU Regulation No 10/2011 is not established by the resin datasheet alone. It depends on the converter’s film construction, migration testing according to EN 1186-1, and the specific lot additive package. Under EU Regulation No 10/2011, Annex V, the overall migration limit for plastics is 10 mg/dm². A REACH declaration and RoHS assessment under 2011/65/EU should be obtained from the resin supplier for the specific shipment, particularly for packaging used in electrical and electronic equipment. BM1048F is not formulated as a medical-grade resin and should not be specified for implantable or body-contact devices without additional grade qualification.
Polyamide, EVOH, or ionomer regrind should not be dry-blended into BM1048F without compatibility testing, because dispersed-phase morphology and interfacial adhesion affect tear resistance under ISO 6383-2 and dart impact under ISO 7765-1. The use of BM1048F in food-contact or pharmaceutical packaging therefore requires film-level migration testing and cannot be supported from the resin data sheet alone.
