Adhesives
Mostrando 49-60 de 266 artigos, teses e dissertações.
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49. Revestimentos de alta camada obtidos com a modificação de resinas epóxi novolaca pela reação com organo-siloxano e catálise ácida
Epoxy resins are an important class of thermostable polymers, widely used in structural applications or as adhesives. However, the low fracture resistance is their main weakness in many applications. Due to this fact, this study aims to modify a polymer matrix based on a novolac epoxy resin with an organo siloxane (AMS). The final properties of cured epoxys
Quím. Nova. Publicado em: 2017-02
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50. Effect of Humidity on The Fatigue Behaviour of Adhesively Bonded Aluminium Joints
Abstract The present work focuses on the effects of water degradation on the fatigue behaviour of adhesive joints bonded with aluminium adherends. The objective of this study is to measure the influence that humidity has on the fatigue crack growth velocity of two distinct adhesives characterized using the Paris Law, using double cantilever beam (DCB) specim
Lat. Am. j. solids struct.. Publicado em: 2017-01
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51. Principal Component Analysis of Commercial Tannin Extracts Using Digital Images on Mobile Devices
Tannins from trees are an abundant renewable resource. The use of tannins is safe for the environment and human health, making it possible to develop environmentally friendly products, such as adhesives, flocculant agents for water treatment, flame retardant foams and anticorrosives. In this study, a methodology was developed for the identification of six co
J. Braz. Chem. Soc.. Publicado em: 2016-12
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52. Adhesives Doped with Bioactive Niobophosphate Micro-Filler: Degree of Conversion and Microtensile Bond Strength
Resumo Avaliar o efeito da incorporação de vidro niobofosfato bioativo (NbG, 40% em peso) em dois sistemas adesivos simplificados convencionais (One Step [OS] e Prime & Bond {PB}) com e sem silano, no grau de conversão (%) e resistência de união (RU) após 6 meses. Os seguintes grupos foram testados: Controle OS: sem adição de partículas; OS e adiç�
Braz. Dent. J.. Publicado em: 2016-12
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53. Water interaction and bond strength to dentin of dye-labelled adhesive as a function of the addition of rhodamine B
ABSTRACT Objective This study investigated the effect of the fluorescent dye rhodamine B (RB) for interfacial micromorphology analysis of dental composite restorations on water sorption/solubility (WS/WSL) and microtensile bond strength to dentin (µTBS) of a 3-step total etch and a 2-step self-etch adhesive system. Material and Methods The adhesives Adp
J. Appl. Oral Sci.. Publicado em: 2016-08
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54. Comparative Assessment of stabilised Polybutadiene Binder under Accelerated Ageing
ABSTRACT Polybutadiene elastomers are versatile materials, being employed at several applications from rocket propellant binder to adhesives and sealants. The elastomers derived from hydroxyl-terminated polybutadiene are usually stabilised with antioxidants to prevent degradation. In this study, a comparative assessment among 2,2’-methylene-bis (4-methyl-6
J. Aerosp. Technol. Manag.. Publicado em: 2016-06
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55. Fifty years of Brazilian Dental Materials Group: scientific contributions of dental materials field evaluated by systematic review
ABSTRACT Objective A systematic review was conducted to analyze Brazilian scientific and technological production related to the dental materials field over the past 50 years. Material and Methods This study followed the Preferred Reporting Items for Systematic Reviews and Meta-Analysis (Prisma) statement. Searches were performed until December 2014 in s
J. Appl. Oral Sci.. Publicado em: 2016-06
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56. Behaviour under Impact of Mixed Adhesive Joints for the Automotive Industry
Abstract The automotive industry is increasingly using adhesive joints bonding advanced lightweight materials to reduce vehicle weight. Strength under impact loadings is a major concern for this application and mixed adhesive joints can effectively improve the joints by combining stiffness and flexibility on the same overlap. This work introduces and studies
Lat. Am. j. solids struct.. Publicado em: 2016-05
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57. The Use of Montmorillonite Clays as Reinforcing Fillers for Dental Adhesives
The aim of this study was to obtaining an adhesive made of dimethacrylate copolymer and clay particles in different concentrations. The samples were prepared by light curing and were evaluated by XRD, FTIR and TGA as well as by measuring flexural strength, elasticity modulus and tensile resistance. The XRD and the mechanical test results indicated that the s
Mat. Res.. Publicado em: 12/02/2016
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58. Sodium hypochlorite effects on dentin bond strength and acid-base resistant zone formation by adhesive systems
Abstract Aim: To evaluate the effects of 10% NaOCl gel application on the dentin bond strengths and morphology of resin-dentin interfaces formed by three adhesives. Methods: Two etch-and-rinse adhesives (One-Step Plus, Bisco Inc. and Clearfil Photo Bond, Kuraray Noritake Dental) and one self-etch adhesive (Clearfil SE Bond, Kuraray Noritake Dental) were
Braz. J. Oral Sci.. Publicado em: 2015-12
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59. Influence of Organic Acids from the Oral Biofilm on the Bond Strength of Self-Etch Adhesives to Dentin
Resumo: O objetivo deste trabalho foi avaliar a resistência de união de sistemas adesivos autocondicionantes após estocagem em ácidos presentes no biofilme oral. Foram utilizados três sistemas adesivos: um autocondicionante de dois frascos indicado para uso com a resina composta à base de silorano (P90 System Adhesive- P90), um autocondicionante de doi
Braz. Dent. J.. Publicado em: 2015-10
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60. An experimental investigation of static load capacity of AL-GFRP adhesively bonded single lap and double butt lap joints
AbstractThis paper is focused on experimental evaluation and comparison of progressive damage behaviors in adhesively bonded single lap and double butt lap joints between aluminum and glass fiber reinforced plastic (GFRP). The effect of joint design and dissimilarity of adherents on damage evolution of adhesive bonding under tensile quasi static loading is a
Lat. Am. j. solids struct.. Publicado em: 2015-08