Applications of Braskem Evateno TN2020 EVA in Industrial Manufacturing

Braskem Evateno TN2020 EVA serves as a key input across several advanced manufacturing sectors, supporting strict regulatory requirements and process efficiencies for converters and end-product manufacturers. Below, we outline major downstream application scenarios, including industry compliance protocols, typical addition levels, process steps, and genuine finished goods found in global supply chains.

1. Photovoltaic Module Encapsulant Films

Photovoltaic laminate manufacturers rely on this EVA grade to deliver durable encapsulation for solar panel modules. Its precise melt flow and vinyl acetate content enable controlled film extrusion, ensuring dimensional stability and excellent weather resistance over the module lifecycle. Critical to the laminating process, this EVA protects solar cells against physical and environmental stressors while maximizing light transmission and electrical performance.

Industry compliance standards

• IEC 61215 and IEC 61730: International photovoltaic module durability and safety standards
• UL 1703: Standard for Safety of Flat-Plate Photovoltaic Modules and Panels
• RoHS 2011/65/EU: Restriction of Hazardous Substances Directive
• REACH (EC) No 1907/2006: Registration, Evaluation, Authorisation and Restriction of Chemicals

Typical usage ratio

• 65–75% in encapsulant film formulations; remaining formulation may include UV stabilizers, adhesion promoters, and crosslinking agents, adjusted based on crosslinking speed and optical clarity targets

Downstream process integration

• Added directly during cast film extrusion or calendering; granules are dosed into extrusion hoppers and mixed with additives before lamination, followed by in-line crosslinking during vacuum lamination with solar cells and glass

Final product types

• PVC-free photovoltaic encapsulant sheets
• Multi-layer solar panel laminates
• Flexible solar film modules for building-integrated photovoltaics
• Backsheet-intermediate encapsulation layers

2. Hot Melt Adhesives (Packaging & Bookbinding)

Processors incorporate this EVA for hot melt adhesive manufacturing, leveraging its controlled viscosity and compatibility with tackifying resins to achieve high-speed line performance and reliable bonding. Application parameters depend on substrate, environmental exposure, and machine speed, supporting packaging operations ranging from corrugated case sealing to repeated-opening bookbinding adhesives.

Industry compliance standards

• FDA 21 CFR 175.105: Adhesives for food packaging
• EN 923: Adhesives terminology and test methods for physical properties
• ISO 9001:2015: Quality management for consistent batch-to-batch performance
• GMP Regulation (EC) 2023/2006: Good manufacturing practice for materials intended for food contact

Typical usage ratio

• 30–50% in hot melt adhesive blends; adjusted depending on required flexibility, open time, and peel strength, with balance made up by tackifiers, waxes, and stabilizers

Downstream process integration

• Dry blended and melt-compounded with tackifiers and waxes in a jacketed mixer or twin-screw extruder; homogenous mass pelletized or fed directly to hot melt tanks for coating or slot-die application onto packaging media

Final product types

• Case and carton sealing adhesives for food, beverage, and consumer goods packaging
• Spine glues for perfect bound books
• Pressure-sensitive adhesive tapes
• Removable label adhesives for logistics and retail

3. Flexible Film for Food Packaging

Converters employ this material to achieve combinations of flexibility, transparency, and weld strength in food-grade flexible film production. Breweries, dairy processors, and snack food companies demand reliable sealability and compliance with food contact standards, making this EVA suitable for both monolayer and coextruded film structures that require heat-seal performance and puncture resistance.

Industry compliance standards

• FDA 21 CFR 177.1350 (Ethylene-vinyl acetate copolymers for food contact applications)
• EU Regulation (EU) No 10/2011: Plastics intended to come into contact with food
• GB 9685-2016: Chinese food safety national standard for food contact materials and articles
• BRCGS Packaging Materials Global Standard, Issue 6

Typical usage ratio

• 12–28% in monolayer films; higher fractions for peelable seals or high transparency, lower fraction in multilayer coextrusion where EVA functions as seal or tie layers

Downstream process integration

• Fed as pellets into blown film extrusion or cast film lines; processed at moderate temperature zones, combined with LDPE, LLDPE, or barrier resins as required; EVA enters the final or intermediate layer depending on sealability or flexibility specifications

Final product types

• Vacuum pouch films for meat, cheese, and processed foods
• Ice bag and frozen food packaging film
• Peelable lidding films for ready meals
• Resealable food wraps and soft-touch retail packaging

4. Cable Sheathing and Insulation Compounds

Wire and cable producers depend on this EVA grade for formulating sheathing and insulation layers meeting flame-retardant specifications, critical for power distribution, automotive, and telecom applications. By compounding with mineral fillers and flame-retardant additives, manufacturers achieve balance between mechanical integrity, low smoke emission, and easy processability for both primary and secondary cable protection layers.

Industry compliance standards

• UL 1581: Reference Standard for Electrical Wires, Cables, and Flexible Cords
• IEC 60332: Tests on electric cables under fire conditions
• RoHS Directive 2011/65/EU: Lead, cadmium, mercury, hexavalent chromium content limits
• EN 50267-2-1: Measurement of halogen acid gas evolved during combustion of cables

Typical usage ratio

• 24–36% in insulation or sheathing compounds; final concentration determined by level of flame retardants and polyethylene blending for fire-resistance and electrical tests

Downstream process integration

• Blended via continuous compounding on Buss or twin-screw extruders with ATH (aluminum trihydrate) and masterbatches; pelletized or direct-fed to cable coating extruders; forms insulation or jacketing layers via pressure or crosshead extrusion onto copper/aluminum wires

Final product types

• Low smoke zero halogen (LSZH) cable insulation
• Fire-rated sheathing for power and control cables
• Automotive wiring harness insulation
• Telecommunications and data transmission jacket compounds

5. Foam Production for Footwear and Sporting Goods

Shoe soles and sport padding manufacturers choose this EVA for molding lightweight, shock-absorbing foams, essential for midsole and insole production. The copolymer’s flexibility, process consistency, and compatibility with blowing agents support closed-cell structure and surface finish. Customers adjust crosslinking and foaming conditions for requisite rebound, density, and resilience across athletic and casual footwear markets.

Industry compliance standards

• REACH (EC) No 1907/2006: Regulation for chemical safety and user health
• EN ISO 20344: Personal protective equipment – Test methods for footwear
• SATRA TM77: Slip-resistance testing for footwear materials
• China GB/T 15107-2013: Standard for EVA resin shoes

Typical usage ratio

• 60–80% in foam formulations, with balance made up by crosslinking agents (such as DCP), blowing agents (azodicarbonamide, sodium bicarbonate), and colorants; higher polymer loading for increased resilience and flexibility in high-performance shoes

Downstream process integration

• Applied as main resin in batch or continuous kneading with additives, granules are then mold-press foamed under controlled pressure and temperature; post-molding stripping and trimming ensures tolerance for automotive and athletic requirements

Final product types

• Sports and athletic shoe midsoles
• Casual and children’s shoes feet cushioning
• Anti-fatigue mats and yoga blocks
• Protective pads for sports equipment