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Addition of plasticizers reduces cost, improves pressure-sensitive tack, decrease melt viscosity, decrease hardness, and improves low-temperature flexibility. The A-B-A structure promotes a phase separation of the polymer, binding together the endblocks, with the central elastic parts acting as cross-links; SBCs do not require additional cross ...
The chemistry of pressure-sensitive adhesives describes the chemical science associated with pressure-sensitive adhesives (PSA). PSA tapes and labels have become an important part of everyday life. These rely on adhesive material affixed to a backing such as paper or plastic film. [1]
Pressure-sensitive tape or pressure-sensitive adhesive tape (PSA tape) is an adhesive tape that sticks when pressure is applied without the need for a solvent (such as water) or heat for activation. It is also known in various countries as self-stick tape , sticky tape , or just adhesive tape and tape , as well as genericized trademarks , such ...
Ethylene-vinyl acetate (EVA) copolymers, low-performance, the low-cost and most common material for the glue sticks (e.g., the light amber colored Thermogrip GS51, GS52, and GS53). [9] They provide sufficient strength between 30 °C (86 °F) and 50 °C (122 °F) but are limited to use below 60 °C (140 °F) to 80 °C (176 °F) and have low ...
It is also used in the photovoltaics industry as an encapsulation material for crystalline silicon solar cells in the manufacture of photovoltaic modules. EVA slippers and sandals are popular, being lightweight, easy to form, odourless, glossy, and cheaper than natural rubber.
"PSA" (song) by SZA, from the album Lana (2023) PSA 5.7 Rock, a pistol; Penal substitutionary atonement, a theory of atonement in Christianity; Professional Sports Authenticator (PSA), an authenticator of sports and trading cards, and similarly hand-signed artifacts; Autonomous Socialist Party (disambiguation) Pisa language or Asue Awyu, ISO ...
PSA later refused to re-grade the card, as any result—whether confirming or contradicting the original PSA 10—would expose their prior misrepresentation. The buyer was refunded by the seller, but the seller—who had relied on PSA’s authentication—never recovered the nearly $1 million value of the card (Id., ¶¶ 72–106).
Pressure swing adsorption (PSA) is a technique used to separate some gas species from a mixture of gases (typically air) under pressure according to the species' molecular characteristics and affinity for an adsorbent material.