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Showing 1 to 15 of 15 for “"Pressure Sensitive Adhesives"”.
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Elastic Analysis of the Loop Tack Test for Pressure Sensitive Adhesives
The loop tack test measures the tack (instant grip) of an adhesive. An analytical model of this test seems to be lacking and is the subject of this research. The strip is investigated using several mathematical formulations, and the solutions are obtained numerically. The loop is created from a …
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Inelastic Analysis of the Loop Tack Test for Pressure Sensitive Adhesives
… can be applied to model the performance of a pressure sensitive adhesive (PSA). Since the simulation of the loop tack test includes geometrical and material nonlinearities, it is solved numerically by the finite element method. The finite element program ABAQUS is used throughout the research. …
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Microphase Separation Studies in Styrene-Diene Block Copolymer-based Hot-Melt Pressure- Sensitive Adhesives
… in styrene — diene block copolymer — based pressure-sensitive adhesive compositions in melt. The work also focuses on determining the microphase separation mechanism in adhesive melts containing various amounts of low molecular weight resin (tackifiers) blended with styrene — diene block …
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Fundamental adhesive studies of block copolymers
Models of multiple component, multiple phase adhesives were developed to examine the conflicting demands placed on modern adhesion technology. Styrene and isoprene based block copolymers were investigated 511 order to understand their adhesive properties. The structure of the microphase separated …
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Mechanical reinforcement and property tuning of adhesive elastomers with polymer-grafted inorganic nanoparticles
Pressure-sensitive adhesives are a ubiquitous class of soft elastomer adhesives capable of instantaneous bonding to a substrate under light pressure. However, their viscoelastic nature renders them vulnerable to mechanical destruction, degradation, and creep, limiting their application window. …
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Testing and Analysis of the Peeling of Medical Adhesives From Human Skin
… layers with anisotropic material properties. Adhesives that bond tapes or patches to skin must attach to skin through moisture and skin movement, but then be removed with little skin trauma. A computer model of peeling from skin apparently has not been developed previously. With experiments …
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Design of Functional Polyesters for Electronic and Biological Applications
… applications requiring low-Tg polymers such as pressure sensitive adhesives or thermoplastic elastomers could also benefit from these novel polyesters. 9-DAME also was transformed into an ABB’ monomer after an epoxidation and subsequent hydrolysis. Successful gelation under melt …
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Bio-inspired Design and Self-Assembly of Nucleobase- and Ion-Containing Polymers
… tunable cohesive strength and peel strength as pressure sensitive adhesives. Post-functionalization converted unprotected cytosine pendent groups in acrylic random copolymers to ureido-cytosine units that formed quadruple self-hydrogen bonding. Ureido-cytosine containing random copolymers …
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Photo-reactive Surfactant and Macromolecular Supramolecular Structures
… acrylic copolymers. Novel hot melt pressure sensitive adhesives (HMPSAs) were developed from acrylic terpolymers of 2-ethylhexyl acrylate (EHA), 2-hydroxyethyl acrylate (HEA), and methyl acrylate (MA) functionalized with hydrogen bonding and photo-reactive functionalities. The …
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Topology and Telechelic Functionality Control in Polyester Design
… polyesters for applications spanning from pressure sensitive adhesives to biomedical applications. Altering polymer topology and functionality using different synthetic strategies was enabled tailoring the thermomechanical, rheological, and adhesive properties of polyesters. The synthesis …
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Mechanisms and mechanics of non-structural adhesion
Two topics dealing with adhesion are addressed: an investigation of the cling of thin polymeric films and an analysis of the effects of viscoelasticity on adhesive systems involving curvature mismatch. The results of an investigation into the mechanisms of adhesion and debonding energy associated …
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Synthesis and Characterization of Tailored Photoactive Macromolecules
… the design and synthesis of UV-curable hot melt pressure sensitive adhesives (PSAs). The cinnamate groups were attached to the PSAs to provide a method to increase molecular weight and add a small amount of crosslinking leading to an increase the adhesive strength of the PSAs. Broadband UV …
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Examining Structure-Morphology-Property Relationships of Novel Styrenic-Based Macromolecules for Emerging Applications
… electromechanical devices, ionic liquids, adhesives, and lithium-ion batteries. Block copolymers have a unique architecture providing physical crosslinking to behave as thermoplastic elastomers. We preferred ABA triblock copolymers as compared to random and diblock copolymers for improved …
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Experimental and Theoretical Studies of Friction and Adhesion of Elastomeric Materials
In this dissertation, four distinct but in some ways related topics, mostly related to experimental and theoretical investigations of friction and adhesion of elastomeric materials, are presented. First, an experimental and theoretical study of the interaction between elastic beams and granular …
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Performance Evaluation and Durability Studies of Adhesive Bonds
In this dissertation, four test approaches were developed to characterize the adhesion performance and durability of adhesive bonds for specific applications in areas spanning from structural adhesive joints to popular confectionaries such as chewing gum. In the first chapter, a double cantilever …