EMA France Arkema Lotader AX 8840 Dispersible Good Adhesion Plastic Modification

EMA France Arkema Lotader AX 8840 Dispersible Good Adhesion Plastic Modification Transparent EMA

LOTADER® GMA COPOLYMER AX8840 is an ethylene-glycidyl methacrylate random copolymer produced by Arkema. Below is its detailed introduction:

Basic Information

Chemical Structure: A random copolymer polymerized from ethylene and glycidyl methacrylate via an autoclave process, with a glycidyl methacrylate content of 8%.

Appearance: Typically transparent pellets.

Packaging Specification: 25kg

Physical Properties

Density: 0.940 g/cc at 23.0°C.

Melt Index: 5.0 g/10 min at 190°C under a load of 2.16 kg.

Hardness: Shore D hardness of 50.

Tensile Strength: Break tensile strength of 8.00 MPa.

Elongation at Break: Up to 400%.

Elastic Modulus: 0.104 GPa.

Flexural Modulus: 0.0850 GPa.

Melting Point: 106°C.

Vicat Softening Point: 87.0°C.

Product Characteristics

Good Reactivity: Glycidyl methacrylate imparts reactivity, allowing it to react with substances containing OH, COOH, and NH₂ groups, achieving good dispersion during melt blending with engineering thermoplastics.

Excellent Compatibility: As an ethylene copolymer, it is compatible with LDPE in all proportions and with almost all other ethylene copolymers.

Good Adhesion: Exhibits good adhesion to materials such as PET, PBT, PPS, metal, paper, and glass.

Application Areas

Compatibilizer for Polyester/Polyolefin Blends: Effectively improves compatibility between polyester and polyolefin, enhancing blend performance. For example, in blends of polyethylene terephthalate (PET) and polyethylene (PE), it reduces phase separation, strengthens interfacial bonding, and improves mechanical and processing properties.

Adhesive for Laminated Structures: Suitable for bonding laminated structures such as polyolefin/polyester and polyolefin/PPS, providing excellent adhesive strength and durability to ensure stability and reliability during use.

Compatibilization and Toughening of Degradable Plastics: Adding AX8840 to degradable plastics like polylactic acid (PLA) significantly improves heat resistance, tensile strength, impact toughness, and elongation at break, while reducing surface roughness and enhancing the appearance quality of plastic products.

Usage Precautions

Storage Conditions: Should be stored in a well-ventilated, dry environment, away from fire sources and high humidity to prevent moisture absorption, deterioration, or hazards.

Processing Temperature: When blending with other materials, it is recommended to process between 190°C and 220°C, with adjustments based on specific material formulations and requirements to ensure thorough melting and uniform dispersion.