A series of designed drug-release systems were prepared and established for clear moisture healing. These systems were designed to have an interpenetrating polymer network (IPN) structure, which contained a breathable polyurethane film, hydrocolloidlayer, and polyacrylate adhesive layer. Breathable polyurethane film (2000 g/m(2)/24 hr) with high moisture permeability was employed as a base for ...

Seung-Ho Baek, Oh-Young Kim, Chang-Keun Kim, Byeong-Hoon Cho* Department of Conservative Dentistry & Dental Research Institute, College of Dentistry, Seoul National University, Department of Polymer Science and Engineering, Dankook University, Department of Chemical Engineering, Chung-ang University Influence of the curing time for the adhesive on the oxygen-inhibited layer thickness and the sh...

The durability of adhesive joints is of special concern in structural applications and moisture has been identified as one of the major factors affecting joint durability. This is especially important in applications where joints are exposed to varying environmental conditions throughout their life. This paper presents a methodology to predict the stresses in adhesive joints under cyclic moistu...

Polymer nanocomposites of core–shell structure were prepared by grafting poly(methyl methacrylate) (PMMA) from TiO2 nanoparticle via the surface-initiated polymerization (SIP) strategy. A bifunctional polymerization initiator inspired by L-3,4-dihydroxyphenylalanine (DOPA), a key constituent of mussel adhesive proteins (MAPs), was designed and synthesized for use in SIP from oxide surfaces. The...

The size effect in the failure of a hybrid adhesive joint of a metal with a fiber-polymer composite, which has been experimentally demonstrated and analytically formulated in preceding two papers, is here investigated numerically. Cohesive finite elements with a mixed-mode fracture criterion are adopted to model the adhesive layer in the metal-composite interface. A linear tractionseparation so...

We report on the formation of eutectic mixtures of ibuprofen using two different polymers together with investigations on the in-vitro release of ibuprofen from drug-in-adhesive layers. Ibuprofen, literature melting point (m.p.) = 73.5-76.5°C, was tested together with Pluronic F127, literature m.p. = 54.4-60.5°C, and polyethylene glycol 1000 (PEG 1000), literature m.p. = 37-40.9°C, as second co...

An Al-based Metal-Organic Framework (MOF) obtained from Li-ion battery wastes as an upcycled material has been shaped a hierarchically porous solid monolith. This original method is based on the stabilization of Pickering High Internal Phase Emulsion (HIPE) by MOF particles that conducts to formation monolith after polymerization aqueous continuous phase and elimination organic internal emulsio...

Abstract This paper deals with the study and development of polymer-based adhesive high filling ratio secondary raw materials waste materials. The goal this is to develop mortar highest rate as possible while preserving very physical-mechanical properties, including flexural compressive strength, pull-off bond strength abrasion resistance. High-temperature fly ash, slag packaging glass are used...

Peeling of a viscoelastic adhesive from a solid substrate poses a wonderful problem of polymer flow. When the adhesive is peeled, it is also stretched in a direction normal to the substrate. The concomitant Poisson contraction creates a pressure gradient and thus induces a shear flow in the adhesive close to the delamination front. Earlier it was pointed out that the strength of viscoelastic ad...