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E-mail: sales@dongfang-insulation.com
Featured Products
Halogen-Free FR Polyester Solutions for Power Applications
Technology Overview
What Is Halogen-Free FR Polyester Chip?
Eco-Intelligent Flame Retardancy Without Halogens
Halogen-Free Flame Retardant (FR) Polyester Chip is a specially engineered polyethylene terephthalate (PET) resin that incorporates phosphorus-based or nitrogen-based non-halogen flame retardant additives directly into the polymer matrix during polymerization. This intrinsic approach delivers UL94 V-0 flame retardancy, eliminates the release of toxic halogenated gases during combustion, and maintains the outstanding mechanical, thermal, and electrical insulating properties essential for power and industrial applications. Unlike surface-coated or additive-blended materials, the flame retardant function is permanently bonded at the molecular level โ ensuring consistency, durability, and compliance across the product lifecycle.
Halogen-Free & RoHS Compliant
No chlorine, bromine, or fluorine compounds. Fully compliant with RoHS, REACH, and global environmental regulations for power equipment.
UL94 V-0 Flame Rating
Achieves the highest UL94 V-0 flame retardancy standard, ensuring self-extinguishing behavior and minimizing fire propagation risk.
High Dielectric Strength
Superior electrical insulation properties make it ideal for transformer insulation, capacitor films, motor slot liners, and high-voltage cable wrapping.
Thermal Stability
Withstands prolonged operating temperatures from -40ยฐC to +180ยฐC without dimensional distortion or property degradation.
Recyclable & Low Smoke
Generates minimal smoke and no toxic halogen gases on combustion โ a critical safety advantage for indoor and enclosed power installations.
Market Intelligence
Commercial & Industrial Landscape
A Rapidly Expanding Global Market
The global halogen-free flame retardant polyester market is experiencing robust growth, driven by tightening environmental legislation, the accelerating energy transition, and rising demand for safer electrical components across power generation, distribution, and smart grid infrastructure. The market was valued at over USD 3.4 billion in 2023 and is projected to exceed USD 6.8 billion by 2031, expanding at a CAGR above 9.2%.
Regulatory catalysts such as the EU's RoHS Directive, IEC 61249-2-21 (halogen-free laminates standard), and China's GB/T 26572 requirements are compelling power equipment OEMs worldwide to substitute conventional halogenated FR materials with advanced halogen-free alternatives โ a trend that positions Halogen-Free FR Polyester Chip as a critical enabling material.
Asia-Pacific dominates production and consumption, led by China, Japan, and South Korea โ markets where aggressive investment in UHV power transmission, 5G base station infrastructure, and new energy vehicle (NEV) power electronics is creating unprecedented demand. Meanwhile, North America and Europe are intensifying adoption in wind turbine generators, industrial motor systems, and data center power distribution units (PDUs).
Key industry drivers include the global push toward carbon neutrality, the proliferation of renewable energy installations, the electrification of transportation, and the deployment of large-scale energy storage systems โ all of which require reliable, high-performance, and environmentally responsible insulating materials.
Technical Data
Key Performance Parameters
| Property | Standard | Typical Value | Application Significance |
|---|---|---|---|
| Flame Retardancy | UL94 | V-0 Key | Self-extinguishing; critical for power enclosures and transformer components |
| Intrinsic Viscosity | ISO 1628 | 0.60 โ 0.72 dL/g | Controls melt processability for film, fiber & molding applications |
| Melting Point | DSC | 248 โ 258 ยฐC | Ensures stability under high thermal load in power equipment |
| Dielectric Strength | IEC 60243 | โฅ 180 kV/mm | Superior electrical insulation for HV cables and capacitor films |
| Halogen Content | IEC 61249-2-21 | Cl + Br โค 900 ppm | Meets strictest RoHS and global green electronics compliance |
| Tensile Strength | ISO 527 | โฅ 180 MPa | Maintains mechanical integrity in demanding industrial environments |
| Operating Temp Range | IEC 60216 | -40ยฐC to +180ยฐC | Wide range suits outdoor power infrastructure and motor insulation |
| Smoke Density (Ds) | ASTM E662 | โค 50 | Low smoke emission for enclosed power station safety |
Application Scenarios
Deep-Dive: Power Industry Application Scenarios
Halogen-Free FR Polyester Chip serves as the foundational material for a wide spectrum of electrical insulation products deployed across the power industry's most demanding environments.
โก UHV Transformer Insulation
Ultra-High Voltage (UHV) transformers require insulating films and tapes with exceptional dielectric breakdown strength and long-term thermal endurance. FR PET chips produced into biaxially oriented films meet Class F/H thermal ratings, withstand partial discharge stresses, and comply with halogen-free standards mandated by grid operators globally.
๐ฌ๏ธ Wind & Solar Power Generation
Generator stator slot liners, coil wrapping tapes, and inter-layer insulation films in wind turbine generators are made from FR polyester films derived from these chips. The halogen-free, moisture-resistant, and UV-stable properties are critical for offshore and desert-environment renewable energy installations.
๐ Rail Transportation Power Systems
High-speed rail traction motors, auxiliary power converters, and onboard electrical cabinets demand insulation materials that pass stringent EN 45545 railway fire safety standards. Halogen-Free FR PET film and components manufactured from these chips provide certified fire protection while meeting low smoke and toxicity (LST) requirements.
๐ EV & Energy Storage Systems
Battery Management System (BMS) insulating films, bus bar insulation sleeves, and cell separator layers in lithium battery packs for new energy vehicles use halogen-free FR polyester as a primary insulating substrate โ balancing safety, weight reduction, and thermal performance under rapid charge-discharge cycles.
๐ก 5G Base Station & Data Centers
Power supply unit (PSU) insulation, PCB substrate films, and cable wrapping in 5G base stations and hyperscale data center power distribution systems increasingly specify halogen-free materials to reduce toxic gas exposure risks for maintenance personnel and comply with international building fire codes.
๐ญ Industrial Motor & Generator Insulation
Class F and Class H motor slot liners, phase separators, and end-winding tapes fabricated from FR PET film directly derived from these chips serve heavy-duty industrial motors in petrochemical plants, steel mills, and water treatment facilities โ where fire resistance certification is a legal and operational requirement.
Future Outlook
Development Trends Shaping the Industry
AI-Driven Materials Design
Machine learning algorithms are accelerating the development of next-generation phosphorus-nitrogen synergistic FR systems, enabling precise tuning of flame retardant performance, viscosity, and processing behavior at the molecular level.
Carbon Footprint Reduction
Bio-based PTA and EG feedstocks combined with halogen-free FR technology are creating sustainable FR PET chips with up to 35% lower carbon footprint โ aligning with Scope 3 emission reduction commitments of global power OEMs.
Reactive vs. Additive FR Systems
The industry is transitioning toward reactive phosphorus-based FR systems (copolymerized into the PET backbone) over additive systems โ delivering superior migration stability, electrical properties, and wash-out resistance for long-life power insulation applications.
Ultra-Thin Film Capability
Advances in chip intrinsic viscosity control now enable the extrusion of halogen-free FR PET films below 4 ฮผm thickness โ opening new applications in miniaturized power electronics and high-energy-density capacitors.
Our Purpose
Vision & Mission
VISION
To Become a World-renowned Innovative New Material Product and Service Supplier.
MISSION
To Provide Safe and Environment-friendly New Material Solution for the Society, Create a Better New Life.
About Us
โ COMPANY PROFILE
Sichuan EM Technology Co., Ltd., established in 1966 and headquartered in Mianyang, Sichuan, south-west part of China, as the 1st public company of electrical insulation material manufacturer in China and National Insulation Material Engineering Technical Research Center, we have comprehensive R&D and manufacturing capabilities to manufacture polyester films, halogen-free polycarbonate and polypropylene films, capacitor polypropylene films, rigid & flexible laminates, mica tapes, thermosetting composites, precision coating product, molding compounds (DMC, SMC), functional PET chips (FR PET chip, anti-bacterial PET chip, etc.), impregnating varnishes and wire enamels, PVB resin & interlayers, special resin (esp. for CCL), etc. We are certified by ISO9001, IATF16949:2016, ISO10012, OHSAS18001 and ISO14001.
We export to the worldwide markets in varied industries, including power generation equipment, UHV power transmission, smart grid, new energy, rail transportation, consumer electronics, 5G communication, and panel display. EMT has established long-term and stable cooperative partnerships with all our partners across the world, whilst providing strong supports in manufacturing services to original equipment manufacturers (OEMs).
Global Footprint
Manufacturing Sites
Our Production Network
Mianyang Site (Headquarters) Chengdu Site Sichuan EMT New Material Central China Site Eastern China Site (Jiangsu) Shandong Dongrun New Material Shandong EMT New Material SNTON Optical Material (Shandong) Meishan Base (Est. 2024)
Our Journey
Milestone
2024
Meishan base established. Chengdu second headquarters officially completed.
2023
Shandong Aimonte awarded "Little Giant with Specialization, Specialization and Innovation" in Shandong Province. Aimonte Aviation awarded National Second-Class Confidentiality Qualification. Henan Huajia awarded "Gazelle" Enterprise in Henan Province.
2022
Established Chengdu Glenson Health Technology Co., Ltd., and Sichuan EM Technology (Chengdu) International Trading Co., Ltd.
2021
Established Sichuan EM Functional Film Materials & Technology Co. Ltd., and Sichuan EMT New Material Co., Ltd.
2020
Wholly-owned acquired Shandong Shengtong Optical Materials Technology Co., Ltd., and established Shandong EMT New Material Co., Ltd.
2018
Established EMT Chengdu New Material Co., Ltd., and Chengdu Drug and Cancer Pharmaceutical Technology Co., Ltd.
2015
Acquired 51% of total equity of Taihu Jinzhang Science & Technology Co., Ltd.
2014
Acquired 62.5% of total equity of Henan Huajia New Material Technology Co., Ltd.
2012
Established Jiangsu EMT New Material Co., Ltd.
2011
Listed on the Shanghai A-share market โ the first electrical insulation materials industry listed company in China.
2007
Renamed Sichuan EM Technology Co., Ltd.
2005
Wholly-owned acquisition by Guangzhou Gaoking Group.
1994
Restructured into Sichuan Dongfang Insulation Materials Co., Ltd., and established Sichuan EM Enterprise Group Company.
1966
EMT's predecessor, state-owned Dongfang Insulation Material Factory relocated from Harbin to Sichuan.
Corporate Network
Structure
Product Range
