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2-Ethylhexyl Acrylate（2-EHA）
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2-Ethylhexyl Acrylate is primarily used as a soft monomer in the production of solvent-based and emulsion-type pressure-sensitive adhesives (PSAs). Its unique properties make it an essential component in creating products that require superior bonding and durability. Additionally, 2-EHA is used in the manufacture of coatings, plastic modifiers, paper and leather processing aids, and textile finishing agents. These applications benefit from the monomer's ability to enhance flexibility, impact resistance, and weatherability.
2-Ethylhexyl Acrylate (2-EHA) serves as a critical soft monomer in polymer formulations, renowned for its ability to impart exceptional flexibility, low-temperature performance, and long-term durability. Its primary applications span diverse industrial sectors:
Pressure-Sensitive Adhesives (PSAs):
Solvent-Based PSAs: Enables formulations with high tack, peel adhesion, and shear resistance for tapes, labels, and graphic films. Essential for automotive trim tapes, medical patches, and industrial bonding solutions requiring reliable performance under stress.
Emulsion-Type (Water-Based) PSAs: Key component for eco-friendly adhesives used in packaging tapes, hygiene products (diapers, sanitary pads), and removable labels. Provides the crucial balance between "stickiness" and clean removability.
Core Benefit: Its long alkyl chain ensures low glass transition temperature (Tg), allowing adhesives to remain flexible and conformable even in cold environments (-40°C and below), crucial for outdoor applications and refrigeration.
Coatings & Paints:
Architectural Coatings: Enhances flexibility and crack resistance in exterior paints and elastomeric roof coatings, accommodating building movement and thermal cycling.
Industrial & Automotive Coatings: Used in primers, clearcoats, and refinish paints to improve impact resistance, stone-chip resistance, and weatherability (UV/ozone resistance).
Wood Finishes: Provides flexibility to prevent cracking on substrates prone to dimensional changes (e.g., furniture, flooring).
Plastic Modifiers:
Impact Modifiers: Significantly toughens rigid plastics like PVC (for pipes, window profiles, siding) and engineering plastics (like PMMA) against impact fracture.
Processing Aids: Improves melt flow and surface finish during extrusion and molding of PVC.
Compatibilizer: Aids in blending dissimilar polymers.
Paper & Leather Processing:
Paper Coating Binders: Enhances the flexibility, gloss, and ink receptivity of coated papers (e.g., for high-quality printing).
Leather Finishing: Used in polymer dispersions for topcoats, providing excellent flexibility, soft handle, abrasion resistance, and low-temperature crack resistance to finished leather goods (apparel, furniture, automotive upholstery).
Textile Finishing:
Fabric Coatings/Backings: Imparts flexibility, durability, and water repellency to coated fabrics for awnings, tarps, and upholstery.
Nonwoven Binders: Key for binding fibers in durable nonwovens used in wipes, filtration, and geotextiles, offering softness and strength.
| Parameters | Standard Value |
Purity |
≥99.5% |
Chromaticity |
≤10# |
Acid Value |
≤0.01% |
Water Content |
≤0.1% |
MEHQ |
15±5ppm |
| Molecular Formula | C₁₁H₂₀O₂ |
| Contains Chemicals | Containing acrylic ester groups and isooctyl long-chain |
| Physical State | Colorless and transparent liquid |
| Soluble State | Soluble in organic solvents |
| Flammable State | Flammable |
| Flash Point | About 79 ℃ |
● Versatility: 2-EHA's ability to polymerize with other monomers makes it a valuable component in creating a wide range of copolymers with tailored properties.
● Flexibility and Durability: The monomer imparts excellent flexibility and durability to end products, enhancing their performance in demanding applications.
● Weather Resistance: Products made with 2-EHA exhibit superior resistance to weathering, maintaining their integrity and appearance over time.
● Pressure-Sensitive Adhesives (PSAs): 2-EHA is predominantly used as a soft monomer in the production of both solvent-based and emulsion-type pressure-sensitive adhesives. Its flexibility and tackiness make it ideal for adhesive formulations that require superior bonding strength and durability.
● Coatings: The compound is an essential ingredient in the manufacture of coatings. It enhances the flexibility and weather resistance of coatings, making them suitable for a wide range of surfaces and environmental conditions.
● Plastic Modifiers: 2-EHA is used to modify plastics, improving their impact resistance and flexibility. This makes the modified plastics more durable and suitable for various industrial applications.
● Paper and Leather Processing Aids: In the paper and leather industries, 2-EHA is utilized as an additive to enhance the quality and performance of products. It improves the texture and strength of paper and leather, contributing to better end-use characteristics.
● Textile Finishing Agents: 2-EHA is also used in textile finishing, providing fabrics with improved softness and flexibility. It helps in achieving desired fabric qualities that meet specific consumer needs.
Q:What is the primary use of 2-Ethylhexyl Acrylate?
A:2-EHA is primarily used in the production of pressure-sensitive adhesives and as a component in coatings, plastic modifiers, and other industrial applications.
Q:How does 2-EHA enhance product performance?
A:2-EHA improves flexibility, durability, and weather resistance, making products more reliable and long-lasting.
Q:Is 2-EHA suitable for outdoor applications?
A:Yes, 2-EHA based products exhibit excellent weather resistance, making them ideal for outdoor use.
Q:Can 2-EHA be used in combination with other monomers?
A:Absolutely, 2-EHA can be polymerized with other monomers to create copolymers with specific desired properties.2-Ethylhexyl Acrylate is an indispensable monomer in various industries, offering versatility and performance enhancements that meet diverse application needs. Whether in adhesives, coatings, or textiles, 2-EHA provides the flexibility and durability required for high-quality products.
