Hypro 1300X43LC VTBNX
Hypro 1300X43LC VTBNX
Hypro 1300X43LC VTBNX copolymer is a low-molecular-weight, methacrylate-functional liquid rubber. It is a 100% solids reactive polymer used primarily as an additive in acrylic adhesives, sealants and coatings, and vinyl esters.
The butadiene-acrylonitrile copolymer backbone provides improved adhesion, toughness, flexibility, low-temperature properties, and impact resistance. As a component in free-radical-cured systems, the VTBNX is incorporated via the vinyl-methacrylate functionality.
Hypro 1300X43LC VTBNX copolymer has a random co-polymer backbone with 78.5% butadiene and 21.5% acrylonitrile and multifunctionality. The butadiene provides rubber properties and extends the flexibility and adhesion to low temperatures. It also contributes excellent resistance to moisture, acids, and bases. The acrylonitrile provides compatibility with polar additives and improves adhesion to oily metal and to the fiber reinforcements in polymer composites.
The multifunctionality enhances the cross-linking in cured adhesives, sealants, and coatings.
Applications for Hypro 1300X43LC VTBNX
This copolymer is typically used in adhesives, sealants, coatings, and resin systems based on vinyl esters or methacrylates. It provides the performance benefits of the rubber (toughener, low-temperature, and impact resistance), and it reacts to the cured polymer matrix.
Acrylic adhesives, sealants, coatings:
- Higher T-Peel and lap-sheer adhesion
- Higher impact resistance and toughness
- Enhanced properties at low temperatures
- Increased resistance to fatique
Vinyl ester resin, adhesives, and composites:
- Higher impact resistance and toughness
- Synergistic toughening with vinyl-ester-rubber adducts and other toughening additives
- Improved compatibility with fiber reinforcement
- Higher T-Peel adhesion to metal
Polymethylmethacrylate (PMMA) composites:
- Higher toughness
- Improved compatibility with silica reinforcement
Features & Benefits
The improved Hypro 1300X43LC copolymer has a much lower color (Gardner 5 vs. Gardner 15+) and much better viscosity stability with age and temperature.
This copolymer provides toughness, impact resistance, and low- temperature properties to vinyl-ester or methacrylate resins and composites and to acrylic adhesives and sealants.
Properties
Check out other Hypro Reactive Liquid Polymers (RLP) in the CVC Product Brochure!
