Phone: +86-816-2295680
E-mail: sales@dongfang-insulation.com
Core Functional Materials
Our flagship functional materials engineered for precision performance across demanding industrial and commercial applications.
Key Industrial & Commercial Applications
Functional materials are the invisible backbone of modern industry. From power infrastructure to consumer electronics, our materials enable breakthrough performance in the most critical environments.
Why Functional Materials Matter in Today's Economy
The global functional materials market is projected to surpass $180 billion by 2030, driven by accelerating electrification, miniaturization of electronics, the green energy transition, and the rapid expansion of 5G infrastructure. Choosing the right material partner is no longer a procurement decision โ it is a strategic competitive advantage.
Power Generation & UHV Transmission
Ultra-high voltage (UHV) grids demand insulation materials with exceptional dielectric strength and thermal stability. Our polyester films, mica tapes, and thermosetting composites protect critical infrastructure operating at voltages exceeding 1000kV, enabling lossless energy delivery across thousands of kilometers.
New Energy & Electric Vehicles
As EV adoption accelerates globally, battery systems and power electronics require advanced flame-retardant films, halogen-free polypropylene insulation, and precision-coated substrates. Our FR PET chips and functional films contribute to safer, lighter, and higher-capacity battery packs for next-generation mobility.
Consumer Electronics & Panel Displays
High-resolution display panels rely on sub-micron-precision base films for polarizers and low-haze polyester films to deliver vivid, energy-efficient images. Our optical-grade films supply display manufacturers globally, meeting the stringent optical uniformity and dimensional stability requirements of OLED and LCD technologies.
5G Communications Infrastructure
5G base stations and millimeter-wave antenna modules require CCL (Copper Clad Laminates) substrates with ultralow dielectric loss. Our special resins, including phosphorus-containing epoxy resins, and precision dry films are critical enablers of high-frequency PCB manufacturing that underpins the global 5G rollout.
Rail Transportation & Aerospace
High-speed rail traction systems and aerospace structural components demand materials that withstand extreme mechanical stress, high temperatures, and humidity. Our molding compounds (SMC/DMC), rigid laminates, and mica tapes ensure insulation reliability in motors, transformers, and composite structural panels used in rail and aviation applications.
Smart Grid & Industrial Automation
The transformation to smart grids and Industry 4.0 automation creates enormous demand for precision insulating components in sensors, inverters, and motor drives. Our impregnating varnishes, wire enamels, and functional PET chips enable compact, efficient, and long-life electrical equipment across smart manufacturing environments.
Market Trends Shaping the Future of Functional Materials
Understanding macro-level market dynamics is essential for material selection, supply chain planning, and long-term investment decisions.
Green & Halogen-Free Material Transition
Regulatory pressure from RoHS, REACH, and evolving EU Green Deal policies is driving a global transition away from halogenated flame retardants. Our halogen-free polycarbonate and polypropylene films, as well as phosphorus-based epoxy resins, position customers at the forefront of sustainable compliance without compromising performance.
AI-Driven Manufacturing & Precision Coating
Artificial intelligence is transforming functional material manufacturing through real-time defect detection, predictive maintenance, and adaptive process control. Our investment in intelligent coating lines and AI-assisted quality inspection ensures sub-micron consistency across high-volume production of optical films and capacitor grade materials.
Circular Economy & Material Recyclability
The shift to circular economic models is reshaping how functional materials are designed, used, and recovered. Our R&D pipeline includes recyclable thermosetting composite systems and bio-based PVB interlayer technologies that reduce lifecycle environmental impact while maintaining the structural and optical integrity demanded by end markets.
Supply Chain Localization & Resilience
Geopolitical shifts and pandemic-era disruptions have accelerated demand for regionally diversified material supply chains. With production bases spanning Sichuan, Jiangsu, Shandong, and Henan, EMT provides customers with a resilient, multi-site supply capability that reduces single-point-of-failure risk in critical material procurement.
Deep-Dive Application Scenarios
Each functional material category serves multiple specialized end-use scenarios. Here we examine the technical depth behind four high-impact application areas.
Fire Safety in Protective Textiles
Flame retardant cotton fabrics are deployed in industrial workwear, electrical utility uniforms, oil & gas PPE, and military applications where arc flash and thermal exposure are daily realities. Compliance with EN ISO 11612, NFPA 70E, and ASTM F1959 standards is non-negotiable โ our materials meet all major global certifications.
Safety Glazing & Automotive Windshields
PVB interlayer resins are the critical bonding medium in laminated safety glass used in automotive windshields, architectural curtain walls, photovoltaic modules, and aircraft canopies. Superior adhesion, UV resistance, and acoustic damping properties are essential โ our PVB resin delivers consistent performance in both standard and specialty glazing applications.
Advanced Display Optical Films
Polarizer base films must achieve haze values below 0.3% and light transmittance above 92% while maintaining dimensional stability across thermal cycles. Our low-haze high-transmittance polyester base films support leading panel manufacturers in delivering high-contrast, wide-color-gamut displays for mobile devices, automotive dashboards, and large-format monitors.
PCB & Semiconductor Packaging
Dry films and industrial PET films are foundational to PCB photolithography and semiconductor packaging processes. As chip geometries shrink below 5nm, the uniformity and chemical resistance of photosensitive dry films become critical to yield rates. Our dry films support high-density interconnect (HDI) and advanced packaging substrates for cutting-edge chip manufacturing.
Motor Insulation in EV Drivetrains
Traction motors in electric vehicles operate under rapid thermal cycling, high voltages, and mechanical vibration. Wire enamels and impregnating varnishes must provide Class H (180ยฐC) or Class C (220ยฐC+) thermal endurance while maintaining dielectric integrity under inverter-driven switching frequencies โ a demanding specification our materials consistently achieve.
High-Frequency CCL for 5G Boards
Phosphorus-containing epoxy resins for CCL applications require a precise balance of flame retardancy (UL94 V-0), low Dk/Df values at millimeter-wave frequencies, and reliable adhesion to copper foil. Our specialty resins enable PCB manufacturers to produce thermally stable, halogen-free, high-frequency laminates for 5G infrastructure without sacrificing processability.
Photovoltaic Module Protection
Industrial PET films serve as backsheet layers in solar PV modules, protecting photovoltaic cells from moisture ingress, UV degradation, and mechanical damage over 25+ year design lifetimes. Our UV-stabilized, hydrolysis-resistant PET films are qualified for outdoor PV applications in extreme climates from desert heat to Arctic cold.
Capacitor Dielectrics for Power Electronics
Capacitor polypropylene films with ultra-low dissipation factor (Tan ฮด < 0.0003) are the heart of film capacitors used in variable frequency drives, wind turbine converters, and EV charging infrastructure. Our precision-biaxially-oriented PP films deliver exceptional voltage endurance and self-healing characteristics for reliable operation in demanding power electronics environments.
Company Profile
Sichuan EM Technology Co., Ltd.
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).
Our Vision & Mission
To Become a World-renowned Innovative New Material Product and Service Supplier.
To Provide Safe and Environment-friendly New Material Solution for the Society, Create a Better New Life.
Our Milestone Journey
From a state-owned factory in 1966 to a publicly listed, globally operating advanced materials group โ EMT's growth reflects China's industrial transformation.
2024
Meishan base established. Chengdu second headquarters officially completed.
2023
Shandong Aimonte was awarded the title of "Little Giant with Specialization, Specialization and Innovation" in Shandong Province. Aimonte Aviation was awarded the National Second-Class Confidentiality Qualification. Henan Huajia was awarded the title of "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, 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.
Manufacturing Sites
Our multi-site production network ensures robust supply chain resilience and localized service capabilities across China's key industrial regions.
Our Production Network
Group Structure
EMT's diversified group structure spans functional films, specialty resins, optical materials, composites, and international trade โ forming a fully integrated advanced materials ecosystem.
Complete Functional Material Portfolio
Explore our full range of engineered functional materials โ each developed to meet the precise technical demands of today's most critical industrial and commercial applications.
Partner With a Global Leader in Functional Materials
Whether you are sourcing materials for power infrastructure, display technology, 5G communications, or electric vehicles โ EMT delivers engineered solutions that meet the most demanding specifications. Contact our technical team today.
Explore Our Full Product Range โ
