Applications of Hanwha TotalEnergies E280PV EVA in Industrial Manufacturing

Hanwha TotalEnergies E280PV EVA is a high-performance ethylene-vinyl acetate copolymer engineered for use in advanced industrial manufacturing sectors. Our manufacturing process ensures tight tolerance on properties critical to demanding downstream integration. Below, we outline several real downstream sectors where customers apply E280PV EVA, including detailed compliance, ratio, process, and product information specific to each use.

1. Photovoltaic Encapsulant Film Manufacturing

Manufacturers in the photovoltaic industry use E280PV EVA to produce encapsulant films protecting solar cell modules. The material’s stability, controlled vinyl acetate content, and melt characteristics support high-speed extrusion and lamination for long-life solar panels that withstand thermal cycling, UV, and humidity stresses. Formulators select grades and ratios based on transparency, crosslinking rates, and anti-PID requirements, while film lines monitor gel content and dimensional control to meet global QC demands.

Industry compliance standards

• IEC 61215:2021 – Terrestrial Photovoltaic (PV) Module Design Qualification
• UL 1703 – Safety Standard for Flat-Plate Photovoltaic Modules and Panels
• REACH SVHC Compliance (EU)
• RoHS Directive 2011/65/EU

Typical usage ratio

• Encapsulant film composition: 100% EVA polymer base with 27–35 wt.% vinyl acetate (VA) content; compounded with curing, UV, and processing additives at 3–8 wt.% based on requirements
• Film thickness and crosslinking agent ratio adjusted per module design (commonly 0.45–0.55 mm thickness post-lamination)

Downstream process integration

• Feedstock for extrusion or calendering to produce sheets
• Corona or flame surface treatment pre-lamination
• Thermal lamination between glass and solar cells, followed by crosslinking in autoclave ovens
• Post-lamination inspection and QC sampling of mechanical and optical properties

Final product types

• Photovoltaic module encapsulant films
• Backsheet-protected PV cells
• Bifacial and glass-glass solar panel components
• Flexible lightweight solar panels for specialty applications

2. Hot Melt Adhesive Formulation

Hot melt adhesive producers use this EVA copolymer as a backbone resin for pressure-sensitive and structural adhesives. Its controlled melt index and VA content allow blending with waxes, tackifiers, and stabilizers for tailored open times, tack, and bond strength. Manufacturers optimize ratios for assembling textiles, packaging, automotive trim, and woodworking, monitoring viscosity, set speed, and shear strength through in-process controls to address diverse substrate and temperature needs.

Industry compliance standards

• FDA 21 CFR 175.105 – Adhesives for indirect food contact (USA)
• EU Regulation No. 10/2011 – Plastics in contact with food
• ASTM D5324 – Standard Test Method for Open Time of Hot Melt Adhesives
• ISO 9001:2015-certified adhesive plant quality systems

Typical usage ratio

• EVA base resin: 20–55 wt.% of the total adhesive formulation, adjusted by desired bond strength and flexibility
• Compatible tackifiers: 25–40 wt.%
• Waxes and oils: 10–25 wt.%, depending on open time and viscosity targets
• Other functional additives: up to 5 wt.%

Downstream process integration

• Continuous or batch melt mixing in jacketed kettles under N2 blanket for controlled oxygen exposure
• Quality control on melt rheology and color
• Pelletizing, pillow, or block casting for finished adhesive form (often granules or slugs)
• Direct delivery to OEMs for packaging lines, woodworking plants, and automotive assembly

Final product types

• Hot melt adhesive sticks for industrial and consumer glue guns
• Automated packaging line adhesive beads and rolls
• Textile, footwear, and bookbinding adhesives
• Automotive component assembly adhesives

3. Wire and Cable Insulation Compounding

E280PV EVA is a core component in low voltage wire and cable jackets, where manufacturers require flame-retardant, weather-resistant compounds meeting telecom and electrical safety standards. The polymer is compounded with ATH flame retardant, antioxidants, and process oils to balance flexibility, ease of extrusion, and long-term dielectric properties. QC labs monitor tensile strength, elongation, and resistance to migration under voltage and thermal stress, ensuring finished cables pass global test regimes for electrical safety and toxicity.

Industry compliance standards

• IEC 60502-1 – Power Cables with Extruded Insulation
• UL 1581 – Reference Standard for Electrical Wires, Cables, and Flexible Cords
• EN 50267-2-1 – Halogen-free, acid gas emission test
• RoHS and REACH chemical content directives

Typical usage ratio

• EVA polymer: 30–45 wt.% in insulation compound, based on target flexibility
• ATH flame retardant: 40–65 wt.% for halogen-free properties
• Other additives (antioxidants, process aids): 3–8 wt.%

Downstream process integration

• High-shear compounding in twin-screw extruders fed with EVA, ATH, and additive blend
• Pre-pelletization quality check for moisture and dispersion control
• Direct extrusion onto metallic or fiber cable cores
• Continuous monitoring of jacket wall thickness and dielectric breakdown strength

Final product types

• Low-voltage electrical cables (building wire, appliance leads)
• Communication cables with flame-retardant jackets
• Mining and automotive wire insulation
• Halogen-free, low smoke cable jackets

4. Foamed Shoe Sole and Footwear Production

Footwear manufacturers use the material to produce lightweight, cushioned, and resilient shoe soles via injection or compression molding of foamed compounds. EVA content and VA% are carefully set to achieve the required softness, rebound, and wear performance for running, casual, and safety shoes. The foaming process integrates chemical blowing agents, followed by molding and post-cure steam treatment, with QC checks on density, compression set, and color uniformity in final goods.

Industry compliance standards

• SATRA TM77:2022 – Assessment of Footwear Sole Adhesion
• ISO 20871 – Footwear Outsoles Performance Test
• REACH Annex XVII – Restricted Substances in Footwear
• EN 20347 – Occupational Footwear Safety Standards

Typical usage ratio

• EVA: 45–75 wt.% in sole compound, depending on hardness and rebound requirements
• Chemical blowing agent (e.g., azodicarbonamide): 1–5 wt.%
• Colorants and fillers: 2–10 wt.%
• Other elastomers (rubbers, TPU): up to 10 wt.%

Downstream process integration

• Dry blending and homogenization in batch mixers
• Foam injection or compression molding with controlled mold temperature
• Steam post-cure to stabilize cell structure
• Surface finishing and QC mechanical testing pre-export or assembly into final shoe SKUs

Final product types

• EVA foam midsoles for running and casual footwear
• Shower slippers and sandals
• Work and safety shoe outsoles
• Children’s and orthopedic footwear bases