Pressure-Sensitive Adhesives for Tapes and Labels

Characterization of odorants in adhesives

“…PSAs are predominantly used in applications comprising tapes for packaging or health care, as well as labels, and in the electrical and automotive industry, e.g. to attach cables or interior parts [14].…”

“…Typical monomers of acrylic adhesives are butyl acrylate, 2-ethylhexylacrylate and several esters derived from methyl acrylic acid [10,14]. Acrylic adhesives as a group cover a wide range of hardening mechanisms, being either applied as reactive components as well as two-component systems, but also being used as hot-melts and pressure-sensitive adhesives [2,10,14,15]. Also the usage of the acrylate-based adhesives is very diverse as is their respective hardening mechanism.…”

Sustainable Triblock Copolymers as Tunable and Degradable Pressure Sensitive Adhesives

“…With the addition of the tackifier, additional tuning of adhesion and cost reduction are possible. 3 Increasing the tackifier content leads to a decrease in T m,PPDCL as well as a decrease in crystallinity of the PPDCL (Figures 6 and S18), suggesting PPDCL and tackifier are miscible. In contrast, T g,PLA measured by DMA was essentially unaffected (55 °C) at 20 wt % tackifier loading (Figure S19), indicating that PLA is not miscible with the tackifier.…”

“…1,2 Most commercial PSAs contain two important components: polymer and tackifier. 3 Among many possibilities, the ABA triblock copolymer architecture has been recognized as particularly useful; it is typically comprised of glassy/minority A-end blocks and rubbery/majority B-central block. 1,4 The microphase-separated glassy A-blocks can act as physical cross-links, thereby providing strength and resistance to creep while a high level of adhesion mostly originates from the rubbery B-block matrix.…”

“…Pressure sensitive adhesives (PSAs) are widely used in many applications such as sticky notes, labels, tapes, and stamps due to their facile adhesion to substrates with minimal applied force . The global PSA market is growing ∼10% annually with a projected total market of 13 billion USD in 2023. , Most commercial PSAs contain two important components: polymer and tackifier . Among many possibilities, the ABA triblock copolymer architecture has been recognized as particularly useful; it is typically comprised of glassy/minority A-end blocks and rubbery/majority B-central block. , The microphase-separated glassy A-blocks can act as physical cross-links, thereby providing strength and resistance to creep while a high level of adhesion mostly originates from the rubbery B-block matrix. , For example, poly­(styrene)-poly­(isoprene)-poly­(styrene) (SIS) ,, and poly­(styrene)-poly­(butadiene)-poly­(styrene) (SBS) , are presently being used in commercial PSAs.…”