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HS Code |
752243 |
| Chemicalname | Poly(Vinylidene Fluoride) |
| Abbreviation | PVDF |
| Casnumber | 24937-79-9 |
| Appearance | White or off-white powder or resin |
| Density | 1.75–1.78 g/cm³ |
| Meltingpoint | 165–175°C |
| Glasstransitiontemperature | -35°C |
| Tensilestrength | 40–55 MPa |
| Dielectricconstant | Approximately 8.4 (at 1 kHz) |
| Solubility | Insoluble in water, soluble in aprotic solvents |
| Flameretardancy | Self-extinguishing |
| Thermalstability | Stable up to 150°C |
As an accredited Poly(Vinylidene Fluoride) SF Resin factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
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Purity 99.5%: Poly(Vinylidene Fluoride) SF Resin with purity 99.5% is used in lithium-ion battery binders, where it ensures high electrochemical stability and cycle life. Molecular weight 500,000 g/mol: Poly(Vinylidene Fluoride) SF Resin with molecular weight 500,000 g/mol is used in membrane fabrication, where it enhances mechanical strength and filtration efficiency. Melting point 170°C: Poly(Vinylidene Fluoride) SF Resin with a melting point of 170°C is used in wire and cable insulation, where it provides excellent thermal resistance and operational reliability. Particle size <20 μm: Poly(Vinylidene Fluoride) SF Resin with particle size under 20 μm is used in powder coatings, where it achieves superior surface smoothness and uniformity. Viscosity grade 4,000 mPa·s: Poly(Vinylidene Fluoride) SF Resin of viscosity grade 4,000 mPa·s is used in extrusion processes, where it delivers optimal processability and consistent product performance. Stability temperature 150°C: Poly(Vinylidene Fluoride) SF Resin with stability temperature 150°C is used in chemical processing equipment linings, where it ensures prolonged durability and corrosion resistance. Crystallinity 50%: Poly(Vinylidene Fluoride) SF Resin with crystallinity 50% is used in photovoltaic backsheet films, where it provides high weatherability and UV resistance. Dielectric constant 8.4: Poly(Vinylidene Fluoride) SF Resin with a dielectric constant of 8.4 is used in high-frequency electronic components, where it offers improved insulation and signal integrity. Tensile strength 45 MPa: Poly(Vinylidene Fluoride) SF Resin with tensile strength 45 MPa is used in pipe manufacturing, where it contributes to high mechanical reliability under pressure. Thermal conductivity 0.19 W/m·K: Poly(Vinylidene Fluoride) SF Resin with thermal conductivity 0.19 W/m·K is used in heat exchanger components, where it delivers efficient thermal management and chemical inertness. |
| Packing | The Poly(Vinylidene Fluoride) SF Resin is packaged in a 25 kg net weight, moisture-resistant, industrial-grade, sealed polyethylene-lined paper bag. |
| Container Loading (20′ FCL) | Container Loading (20′ FCL) for Poly(Vinylidene Fluoride) SF Resin: typically 10-12 metric tons packed in secure, moisture-proof bags or drums. |
| Shipping | Poly(Vinylidene Fluoride) SF Resin is shipped in sealed, moisture-proof packaging, typically within polyethylene-lined fiber drums or bags. Packages are clearly labeled with handling and safety instructions. Store and transport in cool, dry conditions, away from direct sunlight and incompatible substances. Complies with standard chemical shipping regulations to ensure material integrity and safety. |
| Storage | Poly(Vinylidene Fluoride) SF Resin should be stored in a cool, dry, and well-ventilated area, away from direct sunlight and sources of heat or ignition. Keep the container tightly closed to prevent contamination and moisture absorption. Store separately from incompatible materials such as strong acids, bases, and oxidizing agents. Follow all relevant safety and handling guidelines for polymer resins. |
| Shelf Life | Poly(Vinylidene Fluoride) SF Resin typically has a shelf life of 24 months when stored in cool, dry, and sealed conditions. |
Competitive Poly(Vinylidene Fluoride) SF Resin prices that fit your budget—flexible terms and customized quotes for every order.
For samples, pricing, or more information, please contact us at +8615651039172 or mail to sales9@bouling-chem.com.
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Years of hands-on work with fluoropolymers have taught us that quality control, consistency, and purity don't happen by chance. Poly(Vinylidene Fluoride) SF Resin embodies our direct commitment as a chemical manufacturer, not a reseller or a distributing middleman. On the shop floor, raw materials move from precise weighing to controlled polymerization, where small changes in process variables can swing final properties in ways that only become obvious after film casting or injection molding. Our SF line stands out because we watch those details monitoring particle distribution, melt flow, and impurity content batch by batch. That means our resin models, including the often-requested SF-601 and SF-513, supply the industry with granular, white powder forms that melt at temperatures tuned for easier processing and fewer blockages in film extrusion.
Feedback from laminators and battery separator engineers reshaped how we approach SF’s particle size and molecular weight distribution. Many applications—Li-ion batteries, chemical barriers, architectural coatings—set ever-tighter standards for dielectric strength and chemical resistance. After early batches yielded uneven pore formation in separator films, our polymerization lines started incorporating real-time monitoring. Instead of waiting for off-spec shipments, our operators adjust driers and post-reactor blending on the fly. This hands-on control, from monomer sourcing right through to bagging, means the material entering our clients’ extruders starts with narrower variances in end-group structure. We’ve seen fewer line shutdowns and higher yields even in high-throughput environments.
PVDF remains the polymer of choice where a blend of chemical toughness, process stability, and surface finish outweighs cost. Our SF resin range comes from the same lines that deliver specialty grades to membrane, cable, and high-end coating industries. SF-601, for instance, flows consistently in extrusion lines producing films for lithium battery separators. It keeps its melt viscosity stable across the narrow melt window required for uniform pore structure—no sudden spikes or sags. Power storage manufacturers have presented us with separators that perform reliably up to 150°C, critical during thermal runaway in battery packs.
Architectural coating producers prize SF resins for their exceptional weatherability. In decades of panel cladding, PVDF never delaminates in aggressive UV or acid-rain environments. Our own surface chemistry monitoring has proven that after five years outside, SF-based finishes retain gloss and color, backed up by outdoor exposure trials in humid, coastal climates. When we compare this real-world durability with lower-grade PVDF from traders and brokers, the difference shows up as microcracking, chalking, and faded finishes. We spend ample time in the lab blending SF powder with pigments and additives to track how co-crystallization impacts final product stability.
Operating as a direct producer lets us dig deeper into every parameter that matters to industrial clients. Other supply channels often source from refineries or converters, trying to match broad customer specs at the lowest price. Our approach always prioritizes repeatability and traceability. In membrane manufacturing or cable sheathing, trace contaminants—iron, sodium, calcium—undermine resistance and dielectric breakdown voltage. Over the last production cycles, our in-process filtering and deionized water rinsing eliminate those trace elements down to below industry limits. We send out batches with full in-house analytics, backed by real GC and FTIR data, rather than pass-along paperwork.
Since strict control over polymerization temperature and initiator levels results in lower extractables, SF resin’s outgassing behavior also stands apart. We have traced line contamination in many customer facilities back to cheap PVDF with high residual monomer; film or cable segments fail prematurely. Customers using our SF lines for medical and filtration applications now measure extractables well below the limits required for these end uses, which helps keep validation cycles short and regulatory audits smooth.
Several years ago, technical teams working on lithium battery separators hit bottlenecks due to unpredictable gel formation. Most of this traced to uneven molecular weight or poor dispersion in the resin stage. In-house, we modified our polymerization agitators, adjusting shear profiles, and reduced the use of chain transfer agents that contributed to gel points. Engineers using SF-513 in wet-process membrane casting lines started seeing cleaner, smoother films, a result we also noticed in our pilot extrusion laboratory. It’s one thing to publish figures for melt flow; it’s another to achieve visible consistency roll after roll on scaled manufacturing lines.
In powder coating, the demands focus on particle size distribution. Poorly classified resin means uneven spray patterns and frequent gun cleaning. Over multiple production cycles, we tuned our jet milling and sieving apparatus to yield optimal particle sizes. Powder flow remains stable, which reduces booth downtime and improves layer thickness control. Our team regularly visits powder coaters to inspect real application issues, feeding findings back to adjust both classification and anti-caking agent selection.
Industry talk about “PVDF compatibility” when switching suppliers usually misses the true variability between grades. Our clients running high-voltage cable insulation or sensitive water filtration don’t just compare data sheets—they run pilots on full-width lines, observing bubble formation, gel inclusions, or smearing on chill rolls. SF-grade Poly(Vinylidene Fluoride) excels in these conditions because of our dedication to batch regularity and the elimination of odd-lot blending. This means extruders seldom need to tweak screw speed or temperature to compensate for shifts between production lots, a benefit only manufacturers controlling from monomer up can deliver reliably.
In the past, clients have discovered that buying “PVDF resin” from traders can introduce unseen problems—small batch residue, off-color particles, or compatibility shifts when mixed with other polymers. Each variation shows up downstream, leading to loss of productivity and potential warranty claims. Dealing directly with our factory, clients get SF resin matched by melt index, average particle size, and ash content. These are measured with each batch, and we supply the analytical data—not aggregate averages—because every end application, from microfiltration to electronic encapsulation, depends on tight process margins.
Working closely with major battery and membrane manufacturers, our technical support has learned the biggest hurdle isn’t always the material per se, but the way it behaves under scaling pressures. Battery separator film lines, for instance, operate at demanding speeds, and any gel or contamination will stop a million-dollar process. Our customers have shared reports of nearly halving their line downtime after switching to SF resin, owing mostly to drop-in compatibility and the absence of residue. For membrane makers, uniform pore-size distribution delivers better filtration without over-thickening, which keeps energy costs down in water plants and cuts back on membrane fouling.
Some clients in the chemical process industry rely on SF for corrosion-resistant linings in pumps and valves. Field inspection confirms that PVDF linings cast from SF resin resist acid and chlorine attack, reducing the frequency of shutdowns for maintenance. External audits of buildings coated with SF-based architectural finishes consistently show those panels resisting UV, saline fog, and industrial pollutants without requiring re-coating. These outcomes stem from direct process experience, not generic claims.
No polymer resin stands without opportunities for further improvement. Specialty grades like those for membrane or battery use push the boundaries of purity and processing window. To meet these rising expectations, our engineers continually revisit the upstream: improved filtration, stricter monomer purification, and tighter process control instruments. We have replaced older reactors with digital temperature and pressure control to shave off variability in crystallinity, aiming for a future where edge trimming and end-use scrap drop even further.
Some end users need PVDF resins tailored for lower-temperature sintering or better blending with ceramic fillers. We conduct ongoing R&D to match upcoming demands, developing copolymer variants and custom-blend recipes that match not only lab benchmarks but endure actual field trials at customer sites. Testing doesn't end with a certificate; every change in formulation gets trialed in extrusion or casting, then follows samples out to field runs and installation. If a customer’s membrane module or cable sheath underperforms, our tech team wants to understand whether a tweak in molecular weight or end-group chemistry closes the gap.
As a chemical manufacturer, we consider it our direct duty to provide more than just a bag of resin. We invest in the whole chain—from sourcing high-purity monomers to developing packaging that preserves powder flow and avoids contamination. We keep close to our clients and their lines, tracking how each batch performs beyond the lab, on the factory floor, in the field, or on the cladding of major buildings. Poly(Vinylidene Fluoride) SF Resin reflects not just a technical achievement, but a living collaboration between maker and user.
Focusing on long-term reliability, formulating with minimal fillers, and enforcing comprehensive batch testing has brought direct benefits to everyone using SF for demanding applications. Whether for the thinnest battery separator film, the longest chemical-resistant pipe, or the glossiest architectural finish, SF resin stands apart for its manufacturability and performance, all backed by transparent data and field-proven results.
