Description

Poly(Ethylene-Co-Acrylic Acid) is a versatile copolymer that combines the hydrocarbon backbone of polyethylene with the reactive carboxylic acid functionality of acrylic acid. This unique structure provides excellent adhesion, compatibility, and reactivity, making it a crucial functional additive and modifier. It is widely sought after by manufacturers in the packaging, adhesive, coating, and polymer compounding industries. The material serves as a key component for enhancing surface properties, promoting bonding between dissimilar materials, and modifying rheological characteristics.

Application

• Adhesive & Sealant Formulations: Acts as a tackifier and adhesion promoter, particularly for bonding polyolefins to metals, glass, or other plastics.
• Packaging Laminates & Coatings: Used as a primer or tie-layer resin in multi-layer films and extrusion coatings to improve interlayer adhesion.
• Polymer Modification & Compounding: Serves as a compatibilizer in polymer blends and as an additive to enhance pigment dispersion and surface printability.
• Hot Melt Adhesives (HMA): Imparts specific adhesion properties and modifies the open time and set speed of hot melt formulations.
• Ink Receptive Coatings: Improves ink adhesion and print quality on non-porous substrates like polyethylene films.
• Metal Primers: Provides a corrosion-resistant primer layer that promotes paint adhesion on metal surfaces.

Basic Information

Product Name	Poly(Ethylene-Co-Acrylic Acid)
CAS No.	9010-77-9
Molecular Formula	(C₂H₄)ₓ[CH₂CH(COOH)]y
Molecular Weight	Varies by acrylic acid content and grade
Synonyms	Ethylene/Acrylic Acid Copolymer; EAA; Poly(ethylene-co-acrylic acid); Acrylic Acid-Ethylene Copolymer; Ethylene-Acrylic Acid Resin; PEAA; AClyn Ionomer (precursor); ACSI 300; Poly(ethylene-alt-acrylic acid)
EINECS	Contact for details

Quality Control

Our Poly(Ethylene-Co-Acrylic Acid) is manufactured under a stringent quality management system. Each batch is tested against key parameters including acrylic acid content, melt flow index (MFI), density, and thermal properties to ensure batch-to-batch consistency and performance reliability. A comprehensive Certificate of Analysis (COA) detailing these specifications is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (typically 15-25°C). Keep away from strong oxidizers and bases. For long-term storage, a nitrogen blanket is recommended to prevent potential oxidation.

Specification

Item	Specification
Appearance	White to off-white pellets or granules
Acrylic Acid Content	3 - 20% (Typical range, grade-dependent)
Melt Flow Index (MFI)	1.0 - 500 g/10min (190°C/2.16kg)
Density	0.92 - 0.96 g/cm³
Melting Point (DSC)	85 - 105 °C
Acid Number	Varies with acrylic acid content

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.