Selecting Tackifiers and Plasticizers for PSA Formulations
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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.
Additives for Pressure Sensitive Adhesives
Additives in pressure sensitive adhesive formulations include tackifiers, plasticizers, antioxidants, flame retardants, pigments, and fillers. These compounds are added to achieve very specific end-use or processing properties. Tackifiers Generally, tackifiers or blends of tackifiers are added to the base polymer in pressure sensitive formulations.
Tackifiers | ExxonMobil Product Solutions
We offer a broad portfolio of polymers and premium tackifiers with a focus on hot-melt adhesives (HMA) for packaging applications. With our world-class technology and industry-leading expertise, we help our customers develop unique solutions through polymer science. Our Escorez tackifiers are amorphous, glassy, low-molecular-weight hydrocarbon
Escorez tackifier grades and compatibility
Escorez tackifier grades and compatibility. Escorez tackifiers are amorphous, glassy, low-molecular-weight hydrocarbon polymers that promote adhesion and tack in hot-melt and pressure-sensitive adhesives. View more.
- 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.
- Is a tackifier compatible with an adhesive polymer?
- Compatibility between a tackifier and an adhesive polymer is a crucial factor in enhancing viscoelastic properties. In contrast, a certain amount of incompatibility can also provide desired properties. The Hildebrand solubility parameter gives an estimate of the degree of interaction between tackifier and polymer.
- 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 & plasticizers in PSAs?
- Source: Extance, A., “Using Tackifiers and Plasticizers in PSAs”, SpecialChem, February 9, 2009. Plasticizers are organic liquids or solids that are incorporated by melt processing or diffusion into a compatible polymer to reduce interaction between molecules and improve molecular mobility.
- Which polyterpene Tackifiers are best for pressure-sensitive adhesives?
- SYLVARESTM Polyterpene TackifiersPolyterpene grades with a high softening point have shown to combine high heat resistance and excellent tack and pee for pressure-sensitive adhesives. These resins offer the highest amount of biorenewable content of Kraton’s product lines and are compatible with polyolefins an
- Which polymers are compatible with aquatac dispersion Tackifiers?
- These dispersed tackifiers are compatible with a broad range of water-based polymers including natural rubber, C-SBR, SBR, polychloroprene and acrylic latices. Our AQUATAC dispersion resins can be formulated to achieve optimum performance properties for both pressure-sensitive and non-pressure-sensitive adhesives.
