PP S2040 Fiber-Grade Homopolymer Polypropylene — Dushanzi Petrochemical

PP S2040 is a homopolymer polypropylene resin manufactured by Dushanzi Petrochemical Company (PetroChina) using the Innovene gas-phase process at a 550,000 MT/year plant in Xinjiang, China.

With an MFR of 37 g/10min and ash content of 0.0136%, the grade is engineered for extruded fiber applications including spunbond nonwovens, high-speed spinning, filament, and fine-denier staple fiber. BASTONE distributes S2040 directly from PetroChina’s production network with full batch-traceable documentation.

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Description

PP S2040 is produced at Dushanzi Petrochemical Company's polypropylene plant in Xinjiang using the Innovene gas-phase horizontal stirred bed process. The plant uses polymerized propylene as feedstock, hydrogen as a molecular weight regulator, and a Ziegler-Natta catalyst system. After gas-phase polymerization, the resin passes through degassing, compounding, and granulation before packaging. Production conforms to the Q/SY DS122-2016 manufacturer standard.

The MFR of 37 g/10min is the defining specification for this grade. At that melt flow level, the resin runs through spinneret packs efficiently within the 180–220°C die temperature window — enough flow for fine-denier spinning without requiring elevated temperatures that risk thermal degradation. For nonwoven converters running continuous spunbond lines, consistent MFR is the primary parameter governing fiber diameter uniformity and line speed stability.

Tensile strength at yield reaches 34.0 MPa and the flexural modulus is 1.32 GPa, giving the solidified fiber structure enough mechanical integrity to survive downstream converting operations such as needlepunching, spunlace bonding, or fabric slitting without distortion. Izod impact strength at 23°C measures 18.6 J/m, indicating adequate toughness for in-plant handling during fiber formation and winding.

The yellow index of -3.9 reflects a slight blue-white optical cast in the natural resin. For undyed or white nonwovens — medical coverstock, hygiene materials, agricultural fabric — base polymer color affects end-product appearance directly, and a negative yellow index is preferable to a warm-toned resin. Ash content of 0.0136% demonstrates efficient catalyst removal during production. Low ash matters in fiber spinning because residual catalyst ash accumulates in spinnerets over extended runs, causing pressure buildup, reduced throughput, and increased pack-change frequency.

BASTONE sources S2040 through its distribution network spanning China's top three petrochemical producers. Each delivery includes a Certificate of Analysis traceable to the specific Dushanzi production batch, covering all parameters under Q/SY DS122-2016. Procurement teams can verify MFR, mechanical properties, and ash content against documented batch results before accepting delivery.

Factory and Activities

PP S2040 Fiber-Grade Homopolymer Polypropylene — Dushanzi Petrochemical - BASTONE Petrochem

Specifications

PP S2040 homopolymer resin pellets
PP S2040 homopolymer resin pellets — Dushanzi Petrochemical, KUNLUN-branded packaging.

General Information

Product Name PP S2040
Polymer Type Homopolymer Polypropylene (HP)
Manufacturer Dushanzi Petrochemical Company (PetroChina)
Production Process Innovene Gas-Phase Horizontal Stirred Bed
Catalyst System Ziegler-Natta
Execution Standard Q/SY DS122-2016
CAS Number 9003-07-0
HS Code 3902.10
Appearance Natural-color granules; zero black particles or impurities

Technical Properties

Property Value Unit Test Method
Coloring Particles 0 pcs/kg SH/T 1541-2006
Melt Flow Rate (MFR) 37 g/10min Q/SY DS 0513
Tensile Strength at Yield 34.0 MPa Q/SY DS 0515
Flexural Modulus 1.32 GPa Q/SY DS 0516
Izod Impact Strength (23°C) 18.6 J/m Q/SY DS 0517
Yellow Index -3.9 Q/SY DS 0514
Ash Content 0.0136 % GB/T 9345.1-2008

Recommended Processing Conditions

Grade Barrel Temp (°C) Die Temp (°C) Melt Temp (°C)
S2040 160–230 180–220 180–220

*Processing conditions are provided for reference only. Adjust actual parameters based on equipment configuration and end-product requirements.*

Applications

PP S2040 processed on a high-speed spunbond nonwoven production line
PP S2040 processed on a high-speed spunbond nonwoven production line for hygiene and medical coverstock.

Nonwoven Fabrics

Spunbond and meltblown nonwoven lines depend on consistent melt viscosity to maintain web weight uniformity across rolls and shifts. S2040's MFR of 37 g/10min sits in the range where spunbond lines can operate at high speeds without requiring aggressive temperature settings. The zero coloring particle count means no contamination risk in medical or hygiene nonwoven applications where white visual appearance is a quality checkpoint. Low ash content (0.0136%) keeps spinneret packs cleaner over longer production intervals, reducing maintenance downtime on continuous lines.

High-Speed Spinning and Filament

High-speed spinning imposes high shear rates on the melt, making molecular weight distribution consistency critical for avoiding fiber breaks and uneven draw ratios. The Innovene process, with hydrogen as the molecular weight regulator, produces a controlled MWD that supports the processing predictability filament producers need. The negative yellow index (-3.9) is relevant for undyed or optically brightened filament, where the base resin color contributes directly to the final product's whiteness.

Fine-Denier Staple Fiber

Fine-denier staple fiber requires a resin capable of spinning down to low denier values without melt fracture or fiber break at practical processing temperatures. At 37 g/10min MFR, S2040 provides the flow to support fine-denier spinning without pushing barrel temperatures into the range where degradation begins. Good heat resistance and chemical resistance — consistent with the mechanical property profile — carry through to fiber that retains dimensional stability during downstream heat-setting operations and resists degradation during wet chemical finishing processes.

Why Source Through BASTONE

Batch-traceable PP S2040 inventory
Batch-traceable PP S2040 inventory with Certificate of Analysis inspection prior to export shipment.

BASTONE Petrochem distributes petrochemicals from China's top three producers — SINOPEC, PetroChina, and CNOOC — with listed distributor status through SINOPEC. For Dushanzi-origin grades like S2040, BASTONE operates through an established supply relationship within PetroChina's commercial distribution network, providing allocation access that is not dependent on spot-market availability. Every shipment of S2040 carries a full COA traceable to the Dushanzi production batch, with all parameters documented against Q/SY DS122-2016. Buyers can request prior batch COAs during supplier qualification without waiting for a new shipment.

BASTONE's export operations run through Zhejiang Bastone Technology Co., Ltd, which manages trade documentation, customs declaration, and logistics coordination from Chinese ports. The export team carries over ten years of experience handling polyolefin shipments under FOB, CIF, and CFR terms. For procurement teams new to Dushanzi-origin PP, BASTONE can coordinate third-party inspection through SGS or equivalent agencies before container loading.

The parent group operates four production sites and one R&D center, which gives BASTONE technical staff grounded in polymer chemistry rather than pure trading. When a buyer's application sits between two MFR-adjacent grades, BASTONE can provide application-level input on grade selection — not just a datasheet comparison.

Sourcing & Logistics

Supply Origin Dushanzi Petrochemical Company, Xinjiang, China
Polymer Type Homopolymer PP (HP), fiber grade
Packaging Contact BASTONE — standard and bulk packaging options available
Export Entity Zhejiang Bastone Technology Co., Ltd
Port of Loading Tianjin / Shanghai (subject to order volume and scheduling)
Trade Terms FOB, CIF, CFR — flexible based on buyer requirement
Documentation COA (Q/SY DS122-2016), packing list, commercial invoice, bill of lading; SGS or third-party inspection available on request
Sample Availability Available upon request with completed inquiry

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