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PEF polyester is a condensation product of 2, 5- furandicarboxylic acid(FDCA) and ethylene glycol, which can improve the gas barrier property, hot filling temperature, coloring property, mechanical strength, and other properties of petroleum-based polyethylene terephthalate (PET), and has broad application prospects in high barrier packaging materials, high-performance fibers, engineering plastics, and other fields. The company has completed the verification of PEF fiber, PEF polyester bottle, PEF multilayer film, and other application scenarios.
| Product Name |
Poly(ethylene 2,5-furandicarboxylate)
|
| CAS No. |
28728-19-0
|
| Molecular Formula |
(C8H6O5) n
|
| Molecular Weight |
variable
|
| Melting Point |
195–265 ℃（383–509 °F；468–538 K）
|
| Relative Density |
1.43g/cm³
|
Packaging industry: Bottle, Film
Textile industry: Fiber
Zhejiang Sugar Energy Technology Co., Ltd. (Sugar Energy Technology), established in 2017, is a national high-tech enterprise co-founded with participation from the Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences. As a professional China Polymer Manufacturers and Poly (ethylene 2,5-furandicarboxylate) (PEF) Suppliers, focusing on the R&D, production and sales of bio-based furan new materials, the company leverages its advanced raw material production capabilities and downstream application innovation strengths to build a furan materials system of “1 high-end raw material + 5 platform molecules + N high-value products,” and aspires to become a leading bio-based materials enterprise driven by innovation and a strong sense of social responsibility.
Sugar Energy Technology’s flagship product, 5-hydroxymethylfurfural (HMF), is derived from a wide range of biomass feedstocks, including starch, cellulose, sucrose and agar. Featuring rare dual reactive functional groups and an aromatic structure, HMF not only helps improve the performance of other bio-based materials, but also opens up broader possibilities for the modification of conventional fossil-based products.
Guided by its founding mission, “Shaping the Beauty of Biology, Creating New Materials,” and its vision of “Building the world’s leading HMF monomer platform and making bio-based materials accessible to all,” Sugar Energy Technology continues to move forward toward a greener and more sustainable future.
R&D experience
Invention patent
Factory area
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View MoreZhejiang Sugar Energy Technology Co., Ltd. is the Poly (ethylene 2,5-furandicarboxylate) (PEF) manufacturer behind a complete bio-based furan materials platform. Established in 2017 as a national high-tech enterprise, we produce PEF polyester from FDCA and ethylene glycol, and we have verified it in PEF fiber, PEF polyester bottle and PEF multilayer film applications. Because our chain starts from biomass-derived HMF and continues through FDCA and FDME, PEF supplied from our factory is backed by monomer control, polymer development experience and a technical team focused on furan materials.
Our goal is practical: give packaging, textile and engineering-material producers a polyester that can be processed on familiar polyester routes while improving gas barrier, hot-fill temperature, coloring behavior and mechanical strength compared with PET.
As a Poly Ethylene 2 5furandicarboxylate manufacturer, we match product configuration to the application, operating limits, interfaces and acceptance criteria defined for each project.
PEF sits at the downstream end of our furan system, which we describe as “1 high-end raw material + 5 platform molecules + N high-value products.” The high-end raw material is HMF, produced from renewable feedstocks such as starch, cellulose, sucrose and agar. HMF is converted into FDCA, and FDCA is the dicarboxylic acid that reacts with ethylene glycol to make PEF.
This integration matters for procurement because the polymer’s starting point is not a purchased commodity monomer but a chain we control from biomass-derived HMF to final resin. We make 5-Hydroxymethylfurfural (HMF) and 2,5-Furandicarboxylic acid (FDCA) on the same platform, and our 2,5-Furandicarboxylicacid dimethyl ester (FDME) route provides an alternative feedstock for polyester synthesis. That is what we mean when we say the material is bio-based by design, not by blending.
PEF’s furan ring changes how the polymer chains pack, reducing gas diffusion and increasing stiffness. For a converter, the practical effects are visible in the final part:
PEF is not one fixed grade. Molecular weight, melting range and crystallinity determine how the resin behaves in a bottle preform, a film die or a spin pack. We therefore quote against a working point rather than a generic product code.
| Property | Value or meaning | Why it matters |
|---|---|---|
| Product name | Poly(ethylene 2,5-furandicarboxylate) | Identifies the furan-based polyester family |
| CAS No. | 28728-19-0 | Used for customs, documentation and regulatory tracking |
| Molecular formula | (C8H6O5)n | Confirms the repeating polyester structure |
| Molecular weight | Variable, depending on polymer grade | Drives melt viscosity and processing behavior |
| Melting point | 195–265 °C | Defines the melt processing window |
| Relative density | 1.43 g/cm³ | Relevant for part weight and resin dosing |
| Primary applications | Bottle, film, fiber, engineering plastics | Guides the target grade and sample plan |
We do not present PEF only as a lab-scale concept. The company has completed verification of PEF in three industrial application routes:
| Application scenario | Why PEF is selected | Our status |
|---|---|---|
| PEF fiber | Better dyeability, higher mechanical strength, improved resistance to degradation | Application verification completed |
| PEF polyester bottle | High barrier to oxygen and CO2, plus hot-fill capability | Application verification completed |
| PEF multilayer film | Strong barrier against gas and moisture for food, pharma and electronics packaging | Application verification completed |
Beyond these three verified scenarios, PEF’s combination of barrier, heat resistance and mechanical strength makes it a candidate for engineering plastics. We evaluate those projects on defined targets and support them through sample trials before volume supply.
PEF is moisture-sensitive during melt processing. Drying before extrusion, injection molding or spinning is necessary to protect molecular weight and final properties. We provide a starting drying recommendation, then validate the optimum on your line because residence time, temperature and screw design all affect the result.
We inspect the product after each process step. For final PEF products, we conduct full inspections according to customer requirements and international standards before release. Our testing lab and inspection equipment support the release process, so the certificate of analysis becomes the acceptance document for each lot.
Acceptance parameters are defined at order confirmation. Typical items include appearance, melting range, viscosity-related values, moisture and, when agreed, color. This lets both the supplying team and the receiving team check the same measurable working point.
Every PEF inquiry is converted into a specific grade and sample plan. These are the project inputs we use to prepare a proposal:
| Project input | How it affects the supply |
|---|---|
| Application | Bottle, film, fiber and engineering plastic routes need different molecular weight and crystallization targets. |
| Conversion process | Injection stretch blow molding, film extrusion, melt spinning and compounding all define rheology and melt stability requirements. |
| Performance targets | Gas barrier, hot-fill temperature, mechanical strength and color targets determine the grade and the trial program. |
| Volume and cadence | Annual tonnage, lot size and delivery schedule drive packaging, logistics and production planning. |
| Regulatory requirements | Food-contact status, REACH, export declarations and other compliance needs are confirmed before order acceptance. |
Our HMF production capacity reached 2,000 tons/year, which gives the PEF program a stable monomer foundation and a direct route to FDCA. The company has more than 80 employees, including over 40 professional and technical personnel, so PEF inquiries are handled by people familiar with furan chemistry, polymerization and downstream conversion.
Located in Ningbo, Zhejiang, near Ningbo Port, the plant is well positioned for export shipments. For each PEF order we confirm pack type, moisture-protected packaging, labeling, documentation and forwarder requirements before dispatch. Our furan material end products have been sold into European and American markets, and the same project approach applies to new PEF programs.
As a focused PEF supplier, we treat sample runs and process trials as part of product development, not as a separate commercial exercise. The goal is to hand over a resin grade, a processing window and an acceptance method that match your production reality.
Not identical. PEF can be converted on conventional polyester lines, but drying, melt temperature and crystallization parameters must be set for the furan-based polymer. Our verification work in fiber, bottle and multilayer film gives us a practical basis for recommending starting process settings.
We have completed verification for PEF fiber, PEF polyester bottle and PEF multilayer film. These scenarios cover the main downstream routes for the material: melt spinning, bottle making and film conversion.
We quote against a working point: application, conversion process, target melting range and viscosity, plus performance targets such as gas barrier and hot-fill temperature. The certificate of analysis then reports the measured parameters for each lot.
We start from controlled monomer quality, with FDCA derived from our HMF platform, and inspect the product after each process step. Final PEF lots receive full inspection against customer requirements and international standards before release.
Tell us the end application, the conversion process, required tonnage, target physical properties and any regulatory or packaging requirements. That is enough for us to prepare a proposal, define the grade and arrange a sample plan.
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