Pressure-Sensitive Adhesives versus Tacky Gels
ثبت نشده
چکیده
By definition, transdermal, drug-delivery applications mandate the use of adequate adhesive systems to not only keep the pharmaceutical agent in contact with the intended surface, but to facilitate sustained, controlled delivery. Engineers who must determine which silicone chemistry is optimal for their device have a few options. While pressuresensitive silicone adhesives (PSAs) have typically been considered optimal for transdermal applications, silicone gel technology has emerged as an excellent option.
منابع مشابه
Poly bd® Resins in Construction Applications
• Penetration joints and adhesives on EPDM or asphalt roofing membranes (pitch pan) • Adhesives and sealants for crack filling or expansion joints for roofs, roads, bridges, and airport runways, providing excellent resilience, rut resistance, and adhesion to various substrates • Waterproof membranes, coatings or geomembranes for : parking decks, roof decks, terraces waste water, potable water (...
متن کاملAdsorption of surfactant - rich stickies o
‘‘Stickies” are tacky spe tions, adhesives etc. Th deposit build-up. To su to the recycled stock. W mer adsorbing from col commercial preparation simple analogue to the i and cationic sites prese form to the Langmuir m two stage process invol tial aggregation. Talc pla appears to involve three molecules and the talc e surfaces, and finally by
متن کاملAncestrally high elastic modulus of gecko setal b-keratin
Typical bulk adhesives are characterized by soft, tacky materials with elastic moduli well below 1 MPa. Geckos possess subdigital adhesives composed mostly of b-keratin, a relatively stiff material. Biological adhesives like those of geckos have inspired empirical and modelling research which predicts that even stiff materials can be effective adhesives if they take on a fibrillar form. The mol...
متن کاملAncestrally high elastic modulus of gecko setal beta-keratin.
Typical bulk adhesives are characterized by soft, tacky materials with elastic moduli well below 1MPa. Geckos possess subdigital adhesives composed mostly of beta-keratin, a relatively stiff material. Biological adhesives like those of geckos have inspired empirical and modelling research which predicts that even stiff materials can be effective adhesives if they take on a fibrillar form. The m...
متن کاملPressure-Sensitive Adhesives for Medical Applications
Since their introduction half a century ago, pressure-sensitive acrylic adhesive has been successfully applied in many fields. They are used in self-adhesive tapes, labels, sign and marking films and protective films as well as in dermal dosage systems for pharmaceutical applications, in biomedical electrodes, plasters, the assembly of automotive parts, toys, and electronic circuits and keyboar...
متن کامل