Applications of Hanwha TotalEnergies E287PV EVA in Industrial Manufacturing

Hanwha TotalEnergies E287PV EVA is widely adopted by major industrial manufacturers owing to its consistency, processing reliability, and performance attributes. Below, we present verified downstream application segments where E287PV grade EVA delivers tangible value to production operations, meeting stringent compliance standards and answering precise formulation needs.

1. Photovoltaic Module Encapsulation

Photovoltaic module manufacturers rely on this EVA grade as the key encapsulant layer above and below solar cells, due to its consistent melt flow, low gel count, and proven weatherability. This raw material provides durable electrical insulation and moisture resistance, enabling solar panels to perform reliably over decades. Key process parameters, such as lamination temperature and cross-linking rates, are managed during module assembly to extract the full protective value of the encapsulant. The formulation’s vinyl acetate content and cross-linking potential directly impact module durability and power output retention.

Industry compliance standards

• IEC 61215: Crystalline silicon terrestrial photovoltaic modules – design qualification and type approval
• IEC 61730: Photovoltaic module safety qualification
• UL 1703: Standard for Flat-Plate Photovoltaic Modules and Panels
• REACH and RoHS for hazardous substances

Typical usage ratio

• Application rate: 450–600 g/m² per encapsulant sheet, typically forming 18–25% by weight of the finished module; dosage adapts based on cell type, lamination profile, and sheet thickness specifications.

Downstream process integration

• EVA is pelletized and cast or extruded as sheets; sheets are stacked above and below solar cells, followed by vacuum lamination with controlled heating (typically 140–155°C, 10–20 minutes) to cross-link and bond.

Final product types

• Crystalline silicon PV modules
• Thin-film solar panels
• BIPV (Building-integrated photovoltaics) products
• Flexible or semi-flexible solar cell assemblies

2. Film and Sheet for Greenhouse Agriculture

In greenhouse farming, manufacturers utilize this EVA polymer to produce clear, durable agricultural films that offer enhanced UV stability, thermal insulation, and mechanical flexibility. The copolymer structure supports fine-tuning light transmission and thermal retention properties per regional climate requirements, while controlling the risk of embrittlement over multiyear deployments. Film processors work with multilayer co-extrusion and select the incorporation rate based on blend ratios with LDPE or metallocene PE, often adding IR reflection or anti-drip additives in the same film structure.

Industry compliance standards

• EN 13206: Plastics – Film intended for silage and tunnel covering
• REACH Annex XVII (controlling restricted additives)
• ASTM D2756: Specification for Polyethylene Films (applicable for agricultural film blends)
• Regulation (EU) No 10/2011 on plastic materials for food-contact (for edible crop applications)

Typical usage ratio

• 7%–16% by weight in the final film structure, with the exact proportion determined by target light diffusion, impact resistance, and desired flexibility, as well as the presence of co-monomer PE grades.

Downstream process integration

• EVA pellets are blended with base polymer feeders, pre-mixed with masterbatch additives, and processed via blown film co-extrusion at 115–140°C; incorporation occurs before melt, with layer stratification if required.

Final product types

• Greenhouse and tunnel films
• Mulching sheet rolls
• Thermal control covers for horticulture
• Light diffusion films for fruit and vegetable crops

3. Cable and Wire Insulation Compounds

The electrical cable industry uses this EVA grade for compounding to achieve flame retardant and flexible insulation jackets. Manufacturers target low smoke emission and precise dielectric performance by adjusting the EVA blending ratio with fillers such as aluminum trihydrate, and incorporate cross-linking agents to enhance heat deformation resistance. The process must comply with regulatory protocols for halogen-free and low emission materials in applications ranging from building wiring to communication cables.

Industry compliance standards

• IEC 60332-1/2: Tests on electric and optical fibre cables under fire conditions
• RoHS (EU) 2015/863: Restriction of hazardous substances in electrical equipment
• EN 50268: Measurement of smoke density of cables burning under defined conditions
• UL 1581: Reference standard for electrical wires, cables, and flexible cords

Typical usage ratio

• 10–35% by weight in the compound formulation, calibrated according to required tensile strength, flame retardancy, and target flexibility of the jacket or insulation layer; adjustments based on cable standard (e.g., data vs. power cables).

Downstream process integration

• EVA is dry blended and melt-mixed with flame retardants, process oils, and stabilizers in high-shear compounding extruders; the resulting compound is pelletized and then extruded over wire cores using cable coating lines.

Final product types

• Halogen-free flame retardant cable insulation
• Low smoke zero halogen (LSZH) jacketing
• Signal and telecommunications cables
• Flexible electrical appliance cords

4. Hot Melt Adhesive Formulations

This resin serves as a critical base polymer for hot melt adhesives designed for fast-setting and flexible bonding in packaging, woodworking, and hygiene product assembly. Adhesive manufacturers adjust the EVA content alongside tackifier resins and waxes to fine-tune open time, bond strength, and application viscosity. The formulation is developed under occupational safety and environmental stewardship—especially for products used in food contact packaging or medical disposables—necessitating clean handling and predictable thermal performance during large-scale melt processing and slitting.

Industry compliance standards

• FDA 21 CFR 175.105: Adhesives used in food packaging
• ISO 9001: Quality management systems applied to manufacturing processes
• GB 9685: Additive use for materials in food contact (China region)
• REACH Annex XVII: Restriction of hazardous substances for adhesive compounds

Typical usage ratio

• 24–42% in hot melt adhesive formulation, varying with desired melt viscosity, tensile retention, and required open time; ratio shifts with product application (e.g., carton sealing, bookbinding, hygiene articles).

Downstream process integration

• EVA is introduced in the hot melt vessel alongside hydrocarbon resins and functional waxes, melted at 150–180°C under nitrogen blanketing, then pumped into molders or onto substrate coating/slot dies for adhesive strip application.

Final product types

• Carton box adhesive strips
• Disposable hygiene product closures (e.g., diapers, sanitary pads)
• Wood and furniture bonding adhesives
• Heat seal spines for bookbinding

5. Flexible Specialty Foam Products

Foam processors select this EVA grade for physical and chemical foaming methods to produce closed-cell and semi-open cell foams specialized for sports flooring, footwear, and automotive interiors. The copolymer content and melt elasticity help control cell nucleation and rebound, while blending with foaming agents and expansion promoters. Compliance with VOC, physical property durability, and consumer safety tests remains integral to each batch, especially for products with frequent skin contact or interior vehicle use.

Industry compliance standards

• EN 71-3: Safety of toys – Migration of certain elements (applies to sports and leisure foams)
• GB/T 19889: Testing for polymeric foam physical properties
• REACH Annex XVII: Hazardous substances in consumer foam goods
• ISO 9001 and IATF 16949: Quality protocols for automotive interior components

Typical usage ratio

• 65–95% by weight, with the remainder composed of foaming agents, crosslinkers, and fillers; formulation ratio based on final foam density, compression set, and softness.

Downstream process integration

• EVA is mixed with azodicarbonamide or similar blowing agents, compounded in twin-screw extruders, then cross-linked and foamed at 170–230°C with precise cell control, followed by slab cutting, die shaping, or roll forming.

Final product types

• Yoga and exercise mats
• Footwear midsoles and insoles
• Automotive shock-absorption pads
• Protective foam sheets for packaging and consumer use