Dibenzoate Plasticizers in Waterborne Acrylic PSAs
The highest value by this test is at the maximum of plasticizer and tackifier. The next parameter is probe tack, which is yet another way to evaluate the tack of a PSA. Figure 6 shows this data. The addition of the plasticizer significantly increases the probe tack of the PSA evaluated. The 180° peel data are illustrated in Figure 7.
Selecting Tackifiers for Adhesives and Sealants
In adhesive and sealant formulations, tackifiers are used to generate tack and improve specific adhesion (peel strength). They are incorporated into base polymers which mainly lack tackiness and pressure-sensitive properties but provide cohesion.
Sylvatac RE | IMCD US
SYLVATAC RE 40 is a low softening point rosin ester with good stability and mild odor. Its polymer compatibility allows it to be used as a tackifier/plasticizer in many adhesive systems, particularly where better wetting or low temperature tack is required.
Tackifiers
Tackifier Resins. Tackifiers are low-molecular weight compounds (oligomers) that are added to adhesive formulations to improve tack and peel adhesion. Their glass transition temperature (T g) is typically higher than that of the base polymer but their molecular weight is much lower. The tackifiers dissolve in the polymer matrix and break up
Tackifier Suppliers
About: Kraton is a major global producer of styrenic block copolymers (SBC) and the world's largest processor of pine chemicals and the leading producer of rosins, tall oil fatty acids (“TOFA”) and derivatives. 1 Its high performance, high-quality tackifier resins are sold worldwide. The company has 13 manufacturing sites on four continents
- What is tackifier & plasticizer?
- Due to the molecular property of the resin the tackifier quicky travels to the substrate on the compound providing the much needed building tack. Plasticizer: These resins contribute as plasticizers during the compound of the rubber compound.
- What is the best tackifier resin?
- With more than 35 years of experience, and 30+ grades in AP Series we offer resins to a wide spectrum of Industries. POLYTONE® AP 121 and AP 121 H are our best offering as tackifier resin, these are Octyl Phenol based Novolak Resins which provide superior green tack along with added benefits of low colour and plasticizer properties.
- What is a hydrocarbon resin tackifier?
- Hydrocarbon resins tackifiers are either aliphatic, aromatic, or mixtures of the two. Hydrocarbon resin tackifiers are polymerized to raise their softening points to a level that is useful in adhesives. They are low molecular weight amorphous synthetic polymers. Table below summarizes the most common types of hydrocarbon resin tackifiers.
- Does tackifier increase Tg?
- Therefore, the tackifier addition raises the Tg of the final adhesive. Tackifiers operate opposite to plasticizers which lower the Tg of the adhesive formulation. The tackifying agent must be compatible with the base polymer. With hot-melt adhesives, consideration must also be given to the heat stability of the tackifier in the melt.
- What are Tackifiers used for?
- In adhesive and sealant formulations, tackifiers are used to generate tack and improve specific adhesion (peel strength). They are incorporated into base polymers which mainly lack tackiness and pressure-sensitive properties but provide cohesion.
- Which phenolic tackifier is best?
- POLYTONE® AP 120 and AP 120 H are Butyl Phenol based Novolak Phenolic Tackifier. They are designed to provide a economical solution to formulators. Though their performance is lower compared to the Octyl Phenol based (POLYTONE® AP 121/121H) products, their cost effective ness makes them a competitive choice.
