Kingrande's high-performance polyolefin processing aids are purpose-built for lithium battery separator films and solar photovoltaic encapsulation materials — delivering consistent melt flow, defect-free surfaces, and extended die life.




The global shift toward clean energy has created unprecedented demand for high-purity polyolefin films in lithium-ion batteries and solar panels. Polyolefin processing aids (PPA) are now a critical enabler in this supply chain.
Polyolefin Processing Aids (PPAs) are specialty additives — predominantly fluoropolymer-based — that are blended into polyolefin resins such as LLDPE, HDPE, and PP during the extrusion process. They function by forming a thin lubricating layer on the die surface, dramatically reducing melt fracture, eliminating die build-up, and enabling higher throughput rates.
In the context of lithium battery separator films and solar energy encapsulants, the stakes are extraordinarily high. A single surface defect or thickness inconsistency in a battery separator can lead to internal short circuits and safety failures. Similarly, micro-voids or gels in solar EVA films reduce light transmittance and accelerate module degradation.
Kingrande's proprietary fluoropolymer processing aids leverage patented molecular architecture to deliver superior die-wall slip, thermal stability up to 280°C, and full compatibility with mainstream polyolefin formulations used in energy material production.
From battery-grade separator films to high-efficiency solar modules, polyolefin processing aids are redefining what's possible in energy material manufacturing.
Wet-process (Phase Inversion) and dry-process (TIPS/DIPS) battery separators demand extreme thickness uniformity (5–25 μm) and zero gel defects. PPAs enable stable extrusion at high line speeds, reduce die pressure by up to 30%, and ensure consistent micropore structure critical for ion conductivity and safety in EV and energy storage batteries.
Ethylene Vinyl Acetate (EVA) and POE encapsulant films must achieve optical clarity, uniform thickness, and long-term UV stability. Fluoropolymer PPAs prevent shark-skin defects during slot-die or cast film extrusion, improve melt homogeneity, and reduce cross-linking agent consumption — directly improving module efficiency and 25-year warranty performance.
Polyolefin Elastomer (POE) encapsulants for high-efficiency bifacial and TOPCon solar cells require extremely low ionic impurity and superior creep resistance. Kingrande's fluoropolymer PPAs are formulated with ultra-high purity to meet the stringent requirements of Tier-1 solar manufacturers, enabling bubble-free lamination and superior adhesion to glass and backsheets.
Multi-layer PV backsheets incorporating polyolefin core layers benefit significantly from PPA addition. Processing aids reduce die pressure, improve layer uniformity in co-extrusion, and enhance the surface energy for adhesive bonding — ensuring long-term weathering resistance and electrical insulation in harsh outdoor environments.
Emerging solid-state battery technologies require ultra-thin, pinhole-free polymer electrolyte films based on PVDF or polyolefin blends. PPAs play a crucial role in enabling precise extrusion of these sub-10 μm films, maintaining dimensional stability and ionic purity standards that conventional processing cannot achieve.
Large-format energy storage systems (ESS) for grid and industrial applications use multilayer barrier films for cell packaging. PPA-enhanced polyolefin extrusion ensures consistent heat-seal strength, moisture barrier integrity, and mechanical puncture resistance — critical for the safety and longevity of stationary energy storage installations.
The polyolefin processing aid sector is undergoing rapid innovation driven by the electrification megatrend and the global solar energy buildout. Here are the defining trends shaping the industry through 2030.
Regulatory pressure from REACH, EPA, and China's MEE is driving the industry toward next-generation PPAs that eliminate long-chain PFAS compounds. Kingrande's Borflon FSA — an eco-friendly Y-Type perfluoro surfactant and PFOA substitute — represents the frontier of sustainable fluorochemical innovation, offering equivalent processing performance with a dramatically reduced environmental footprint.
Leading PPA manufacturers are integrating machine learning into additive formulation design, using predictive models to optimize PPA concentration, molecular weight distribution, and co-additive compatibility. This AI-driven approach reduces development cycles from months to weeks and enables real-time process adjustments on battery film extrusion lines.
As battery energy density targets push separator thickness below 5 μm, PPA technology must evolve to support extreme draw ratios and ultra-high line speeds exceeding 300 m/min. Kingrande's R&D pipeline includes nano-structured fluoropolymer PPAs specifically engineered for sub-7 μm separator film production.
As geopolitical dynamics reshape global supply chains, battery and solar manufacturers in China, South Korea, and Southeast Asia are actively qualifying domestic PPA suppliers. Kingrande's Chengdu-Suining manufacturing base positions it as a strategic near-source partner for Asia's booming energy materials industry, offering supply security and rapid technical support.
The next generation of PPAs will combine processing aid functionality with antistatic, anti-blocking, and UV-stabilization properties in a single masterbatch system. This multi-functional approach reduces additive inventory, simplifies formulation management, and improves film performance consistency for both battery and solar applications.

Years of Production Experience

Overview & Legacy — Chengdu Kingrande Chemicals Co., Ltd. (formerly Chenguang Fluoro & Silicone Elastomers Co., Ltd. / FSE) was founded in 2004. Headquartered in Chengdu with manufacturing sites in Suining, China, we have grown through over 20 years of unremitting efforts from a small team of ten into a comprehensive enterprise with 300+ staff and two subsidiaries.
We have evolved from simple traditional techniques to becoming a leading domestic supplier powered by patented technology, expanding our expertise from FKM pre-compounds to the high-end fine chemical market — now including specialized polyolefin processing aids for lithium battery and solar energy material applications.
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Kingrande specializes in the R&D and production of specialty fluorinated chemicals and silicone materials. Our diverse portfolio serves the full spectrum of energy material processing needs.

Advanced Materials: ChipChill electronic-grade direct immersion single-phase coolant, Fluocon perfluoropolyethers (PFPE), Borflon FSA (an eco-friendly Y-Type perfluoro surfactant and PFOA substitute), and MQ silicone resin (customizable methyl and vinyl types).

High-Performance Elastomers: Fluoron fluoroelastomer (FKM), fluorosilicone (FVMQ), and perfluoroelastomer (FFKM) — engineered for extreme temperature, chemical, and pressure environments in energy applications.

Polyolefin Processing Aids: High-performance fluoropolymer PPAs specifically designed for lithium battery separator film, solar EVA/POE encapsulant, and PV backsheet polyolefin extrusion — delivering melt fracture elimination, die pressure reduction, and superior film surface quality.
Quality is the lifeblood of Kingrande. Our management system is certified by SGS with ISO9001:2015, IATF16949:2016, and ISO14001:2015. We are recognized by the Ministry of Industry and Information Technology as a "Little Giant" of Specialized, Fine, Peculiar, and Innovative enterprises. Our accolades include being named a National High-tech Enterprise, a National Intellectual Property Advantage Enterprise, and a Top 100 Sichuan Enterprise in Technological Innovation.


Explore our full range of polyolefin processing aids and fluorochemical solutions engineered for lithium battery, solar energy, and advanced polymer film applications.








Partner with Kingrande to unlock the full potential of your polyolefin extrusion process for lithium battery and solar energy materials. Our technical team is ready to provide customized PPA solutions, application testing, and on-site process support.
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