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OBJECTIVES This study investigated the shear bond strength (SBS) and the tensile bond strength (TBS) of the zirconia-to-resin interface using different cement bonding concepts. METHODS Coplanar zirconia specimens were bonded to CoCr-cylinders measuring 5 mm in diameter and 3 mm in height. All bonding areas were first sandblasted with 110 μm Al(2)O(3) (0.28 MPa, 10 s). SBS and TBS were determi...

The sol-gel process is an innovative advanced method, initially developed to synthesize glass and ceramics at low temperature. Sol-gel can be used synthesis materials with a variety of shapes, such as porous membranes, thin fibers, nano-size powders films. In this study, epoxy methacrylate based silane coupling agents are together zirconium oxide form hybrid coating system on surface. the exper...

Hybrid nanomaterials based on zinc oxide were synthesized via the sol-gel method, using different silane coupling agents: (3-glycidyloxypropyl)trimethoxysilane (GPTMS), phenyltriethoxysilane (PhTES), octyltriethoxysilane (OTES), and octadecyltriethoxysilane (ODTES). Morphological properties and the silane precursor type effect on the particle size were investigated using dynamic light scatterin...

Unmodified Fe(3)O(4) nanoparticles do not stabilize Pickering emulsions of a polar oil like butyl butyrate. In order to obtain stable emulsions, the Fe(3)O(4) nanoparticles were modified by either carboxylic acid (RCOOH) or silane coupling agents (RSi(OC(2)H(5))(3)) to increase their hydrophobicity. The influence of such surface modification on the stability of the resultant Pickering emulsions...

Cellulose is an important part of transformer insulation paper. Thermal aging cellulose occurs in long-term operation transformers, which deteriorates the mechanical properties and thermal stability cellulose, resulting a decrease life. Therefore, improvement has become research hotspot. In this study, effects different silane coupling agents on modified were studied. The simulation results sho...

Natural rubber (NR) and halloysite nanotube (HNT) composites are known to perform poorly due polarity differences between the two components. As such, many extant studies have attempted increase their compatibility. Therefore, this study introduced epoxidized natural (ENR) together with silane coupling agents into composite ensure rubber-filler interactions. Four different silanes namely bis-[(...

Biopolymers are easily denatured by heating, a change in pH or chemical substances when they are immobilized on a substrate. To prevent denaturation of biopolymers, we developed a method to trap a polynucleotide on a substrate by hydrogen bonding using silica particles with surfaces modified by aminoalkyl chains ([A-AM silane]/SiO2). [A-AM silane]/SiO2 was synthesized by silane coupling reactio...