Applications of Hanwha TotalEnergies 2010 EVA in Industrial Manufacturing

Hanwha TotalEnergies 2010 EVA is a high-performance ethylene-vinyl acetate copolymer recognized for its flexibility, transparency, and strong adhesion properties, enabling its utilization across demanding downstream sectors. The following sections outline its established industrial roles, compliance requirements, practical formulating guidelines, integration stages, and major end product categories.

1. Photovoltaic Encapsulation Films for Solar Modules

Solar module manufacturers increasingly select this EVA for encapsulation films due to its balanced melt flow, excellent optical clarity, and non-yellowing characteristics. Formulators depend on its vinyl acetate content for improved crosslinking, weather resistance, and electrical insulation, supporting stringent module reliability targets. Encapsulation films produced with 2010 EVA protect delicate solar cells against moisture and mechanical stress during long-term outdoor exposure.

Industry compliance standards

• IEC 61215 – Terrestrial Photovoltaic (PV) Modules Design Qualification and Type Approval
• IEC 61730 – Photovoltaic Module Safety Qualification
• UL 1703 – Flat-Plate Photovoltaic Modules and Panels
• ISO 9001 – Quality Management Systems

Typical usage ratio

• 100% base resin for film extrusion; additive packages (antioxidants, UV absorbers) at 1-3% according to required weatherability and yellowing index. Crosslinking agents (e.g., peroxide) at 0.5-1.8% depending on line speed and lamination method.

Downstream process integration

• Direct feeding into twin-screw extruders for cast or blown film; post-extrusion pellet drying; peroxide masterbatch blending prior to calendering; final lamination inside vacuum laminators before module assembly.

Final product types

• Photovoltaic encapsulant films (front, rear layers for crystalline silicon PV modules)
• Backsheets and interlayers for flexible solar panels
• Specialized thermoformable sheets for building-integrated photovoltaics (BIPV)

2. Hot Melt Adhesive Formulations

Hot melt adhesive producers leverage the copolymer’s low processing temperature, flexibility, and compatibility with tackifiers to produce adhesives for automotive assembly, packaging, bookbinding, and hygiene articles. Its vinyl acetate content facilitates rapid setting and broad substrate adhesion, vital in high-speed industrial applications while maintaining stable viscosity and bond strength during heating cycles.

Industry compliance standards

• ISO 9001 – Quality Management Systems
• FDA 21 CFR 175.105 – Adhesives for Food Packaging (specific grades/formulations)
• REACH SVHC Compliance (hazardous substances in finished adhesives)
• ASTM D1876 – Peel Resistance Testing

Typical usage ratio

• 30–60% EVA copolymer in adhesive blend; dosage depends on targeted open time, flexibility, and peel strength. Remaining composition includes tackifiers and plasticizers adjusted up to 65% and 20% respectively as per performance profile.

Downstream process integration

• Premixing EVA pellets with resins and waxes in heated sigma blade mixers or internal mixers; extrusion or pelletizing for hot-melt glue stick or pellet formats; in-line granule melting in high-speed adhesive application units on automated lines.

Final product types

• Hot melt glue sticks/granules for carton bonding and case sealing
• Book spine adhesives
• Pressure-sensitive tapes and labels
• Nonwoven hygiene article construction adhesives

3. Cable and Wire Insulation Compounds

Wire and cable compound manufacturers utilize EVA’s outstanding electrical insulation, mechanical resilience, and resistance to low-temperature cracking for automotive, energy, and communication cables. The resin ensures reliable extrusion performance and stable dielectric properties, supporting cable designs subject to demanding thermal cycling and regulatory scrutiny for flame retardancy.

Industry compliance standards

• UL 62/UL 1581 – Flexible Cord and Fixture Wire Safety
• IEC 60502-1 – Power Cables with Extruded Insulation
• RoHS Directive (2011/65/EU) – Hazardous Substances Restrictions
• EN 50363 – Insulating and Sheathing Compounds for Cables

Typical usage ratio

• 40–80% EVA content in insulation blend, with adjustments based on required flexibility and flame retardancy. Fillers such as ATH (aluminum trihydrate) incorporated at up to 55% to meet fire performance standards.

Downstream process integration

• Pellet blending with flame retardant masterbatches; melt compounding in twin-screw extruders; stranding and co-extrusion over copper/aluminum conductors; in-line cross-linking (where specified) to enhance mechanical durability.

Final product types

• Sheathing and insulation for low-voltage power cables
• Signal and telecommunication cable jackets
• Automotive and appliance wire coatings
• Flexible cord compounds for portable equipment

4. Foam Shoe Soles and Sports Equipment

Shoe and sporting goods manufacturers capitalize on the resin’s fine cell structure and elastic recovery in injection and compression foaming applications. The copolymer forms lightweight, durable soles and midsoles with reliable cushioning, elongation, and slip resistance, especially beneficial for athletic footwear, yoga mats, and safety gear, where repeated impact resilience is mission-critical.

Industry compliance standards

• ISO 20344 & ISO 20345 – Safety Footwear Testing Methods
• REACH Compliance – Polymeric Additives and Colorants
• EN 71-3 – Toy Safety (for children’s sporting goods)
• China GB/T 15107 – EVA Foam Shoes Standards (for China market exports)

Typical usage ratio

• 55–95% EVA as foaming base, depending on durometer and density target; foaming agents at 3–7% and crosslinkers (DCP) at 1–2% for cell structure optimization; pigments and stabilizers at 0.5–2% as batch requirements dictate.

Downstream process integration

• Mixing EVA beads with additives and foaming agents in tilt kneaders; extrusion; mold-filling for injection or compression foaming; crosslinking and expansion in controlled-temperature molds; cutting, finishing, and texturizing of finished parts.

Final product types

• Sport/trainer shoe midsoles and outsoles
• Cushioning pads and shock-absorber linings
• Exercise mats, yoga blocks
• Protective padding for helmets and gloves

5. Flexible Film and Packaging Production

Flexible packaging converters use 2010 EVA for blown and cast film production where high clarity, sealing strength, and puncture resistance are vital. Its compatibility with LDPE and other resins enables custom barrier or functional layers in films for perishable food, medical pouches, and personal care product packaging. Its low sealing temperatures support high-speed form-fill-seal operations with minimal film distortion.

Industry compliance standards

• FDA 21 CFR 177.1350 – Ethylene-Vinyl Acetate Copolymers (food contact)
• EU 10/2011 – Plastics in Food Contact Materials (where applicable)
• ISO 14001 – Environmental Management (waste minimization in packaging)
• ASTM F88 – Seal Strength Testing for Flexible Packages

Typical usage ratio

• 5–25% EVA as blend modifier in multilayer films; dosage tailored for targeted heat seal strength, optical clarity, and flexibility. LDPE and other polyolefins comprise balance of the structure. Higher levels (up to 100%) in stretch or cling films requiring special performance.

Downstream process integration

• Direct resin blending prior to feed in film blowing or cast extrusion lines; gravimetric dosing into multi-extruder systems for co-extrusion; in-line corona and surface treatment; slit roll conversion and bag forming for customer applications.

Final product types

• Vacuum bags and lidding films for perishable foods
• Medical device pouches and disposable glove packaging
• Peelable or weld-sealed pouches for personal care products
• Cling films and commercial wrap rolls