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.
Selecting Tackifiers and Plasticizers for PSA Formulations
Selection of tackifiers for new PSA development and as alternatives in current formulations Standard process for evaluating tackifiers in specific PSA formulations Method to well balance the plasticizer / tackifier couple Select your Course Access Recorded Course: 299 This includes: - Recording of the live session (.wmv 90 min)
Additives for Pressure Sensitive Adhesives
Pressure sensitive adhesives normally are composed of elastomeric or thermoplastic base polymers, resinous tackifiers, and a series of additives such as plasticizers, fillers, and antioxidants that are designed to improve performance and processing properties.
Plasticizers and their influence on acrylic PSA performances
Plasticizers can be used as components in the pressure-sensitive adhesive technology for tackification of self-adhesive performances. Plasticizer resistance is an important feature of PSA,...
Formulating a UV-Cure Pressure Sensitive Adhesive
opportunity to build the plasticizer resistance into the resin, monomer and tackifier combination. Proper raw material selection is essential to produce superior performance. Original formulations using a traditional mercury-vapor lamp system performed well but the excess heat scorched the foam surface. The relatively low Tg of the PVC
- 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 Tackifiers are compatible with PSA?
- RE, besides PERE, on different characters of the synthesized PSA. In this project, various tackifiers concentrations (0, 2.5, 5, and 7.5 wt %) were added to the internal method. The results clearly show that RE has higher compatibility with the PSA among these three tackifiers.
- Do Tackifiers affect a PSA based on acrylate-vinyl acetate?
- his work was intended to investigate the effect of various tackifiers (terpene phenolic resin (TPR), rosin ester (RS), and pentaerythritol rosin ester (PERS)) on the main properties of a PSA such as tack, peel, and shear strength. In this experiment, the PSA based on butyl acrylate-vinyl acetate was synthesized.
- Do acrylic adhesives need a tackifier?
- Acrylic adhesives do not necessarily require tackifiers for pressure sensitive adhesive properties. The adhesive properties, however, can be varied and fine-tuned by compounding with numerous ingredients as in the case of elastomeric pressure sensitive adhesives.
- Are Tackifiers suitable for polymers?
- In addition, the kind and compatibility of tackifiers are of utmost importance. Incidentally, the more suitable and more compatible tackifiers for various polymers, the higher the viscoelastic properties of the final adhesive [11-14]. Tackifiers are low molecular weight compound (300-2000 g/mol) .
- How to design a PSA formulation with acrylic block copolymers?
- In designing a PSA formulation with acrylic block copolymers, the miscibility with tackifiers needs to be considered. In principle, tackifiers and plasticizers should be selectively compatible with the PnBA block domain. Miscibility data of acrylic block copolymer/tackifier systems are shown in Figure 5 via tan delta curves.
