1 緒 言 PBO(ポリパラフェニレンベンゾビスオキサゾ-ル) 繊維は,繊維強化複合材料の有機系強化繊維の一つであ り,炭素繊維に匹敵する強度・弾性率を有し,有機繊維 中最高の耐熱性・難燃性を示す事から,FRPの次世代の 強化繊維としての用途展開が期待されている.1), 2) しかしながら,PBO繊維は,繊維/樹脂間の界面強度 が不十分であり,この界面強度は FRPの様々な力学的特 性に大きく影響するため,3)PBO繊維の FRPの強化繊維と しての優れた特性を最大限に活かすためには,界面強度 向上を目的とした繊維表面改質法の研究が不可欠となっ てくる. 現在,繊維/樹脂間の界面強度の向上を目的として, 様々な表面改質法が試みられている.中でも低温プラズ マ処理は,ドライプロセスで低公害であり,繊維自身の 物性を損なうことなく,親水性の官能基を表面に効率的 に付与できるといった利点を...

The objective of this study was to investigate the significance of inner and outer phase pressure, as well as interfacial film strength on W/O/W multiple emulsion stability using microscopy and long-term stability tests. It was observed that immediately upon applying a coverslip to samples the multiple droplets deformed and there was coalescence of the inner aqueous droplets. Under certain cond...

We investigate the folding behavior of protein sequences by numerically studying all sequences with a maximally compact lattice model through exhaustive enumeration. We get the prionlike behavior of protein folding. Individual proteins remaining stable in the isolated native state may change their conformations when they aggregate. We observe the folding properties as the interfacial interactio...

Interfacial strength between polymeric matrix and natural filler reinforcement has direct effects on the properties of wood plastic composites. There are some approaches to improve the interfacial adhesion between two phases in wood plastic composites. One of them is using coupling agents to improve the composite properties. In this study, the effect of maleic anhydride as a coupling agent on t...

We investigate the folding behavior of protein sequences by numerically studying all sequences with maximally compact lattice model through exhaustive enumeration. We get the prion-like behavior of protein folding. Individual proteins remaining stable in the isolated native state may change their conformations when they aggregate. We observe the folding properties as the interfacial interaction...

Purpose – The purpose of this paper is to address the problems of interaction of tensile stress-waves with polyurea/fused-silica and fused-silica/polyurea interfaces, and the potential for the accompanying interfacial decohesion. Design/methodology/approach – The problems are investigated using all-atom non-equilibrium molecular-dynamics methods and tools. Before these methods/tools are employe...

In fiber reinforced composite materials, the interface between the fiber and the matrix plays akey role in mechanical properties of composite materials. Therefore, a more accurateevaluation method of the interface is necessary to develop better fiber reinforced compositematerials. Many techniques are used for evaluating the interfacialproperties. Recently, anexperimental met...

Thermally reduced graphene nanoplatelets were covalently functionalised via Bingel reaction to improve their dispersion and interfacial bonding with an epoxy resin. Functionalised graphene were characterized by microscopic, thermal and spectroscopic techniques. Thermal analysis of functionalised graphene revealed a significantly higher thermal stability compared to graphene oxide. Inclusion of ...

Vapor-liquid interfacial properties of square-well associating fluids are studied via transition-matrix Monte Carlo simulation. Results for one-site and two-site association models are presented. Coexistence properties, surface tension, cluster distribution, density profile, and orientation profile are presented. Molecular association affects the interfacial properties and cluster fractions mor...