new glucose sensor using microporous enzyme membrane

a microporous enzyme membrane attached to a platinum electrode surface forms a new glucose sensor. the enzyme electrode is prepared in three steps: casting the block copolymer containing functional silyl groups into a thin film on a platinum electrode; preparation of the microporous membrane by etching the polymer film; and immobilization..

Home | News & Info | KOTITI 라이브러리 | 섬유기술정보 I 등록일 : 2016.11.02 I 조회수 : 351

materials and methods of fabrication of charged reverse osmosis membranes

data on methods of obtained four main types of charged reverse osmosis membranes were analyzed. the first type comprised membranes prepared from polyelectrolytes. the second type included membranes obtained by radiation and chemical grafting of ionogenic groups. the third type comprised dynamic membranes with polyelectrolytic substrate. t..

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strength of aramid-epoxy composites during moisture absorption

tests were performed to determine the effects of a fiber surface treatment on the interlaminar shear strength of dry and moist twaron aramid-epoxy composites. unidirectional specimens, some containing treated fibers and some containing untreated fibers, were subjected to elevated temperatures and humidities for periods of up to 14 months...

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new technology. polyester microfibers. a new generation of fabrics

with today's new microfiber technology, filaments can be spun in deniers far finer than silk. polyester microfibers can be used to create fashionable women's outerwear fabrics with a new hand and smooth drape, sportswear fabrics with improved moisture transport or tightly woven fabrics for waterproof garments. fiber blends, mechanical sur..

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fiber-matrix adhesion and its effect on composite mechanical properties. ii. longitudinal (0 $degree$ ) and transverse (90 $degree$ ) tensile and flexure behavior of graphite/epoxy composites

an optimum level of interfacial bond strength between reinforcing fiber and a polymeric matrix in which it is placed is essential for acceptable composite mechanical properties and performance. the interfacial bond strength can be optimized only when the relationship between the level of fiber-matrix adhesion and the mechanical and fractu..

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fiber-matrix adhesion and its effect on composite mechanical properties. i. inplane and interlaminar shear behavior of graphite/epoxy composites

an experimental investigation was performed to establish the relationships between fiber-matrix adhesion as determined by single fiber interfacial shear strength tests with the inplane and interlaminar shear properties of graphite/epoxy composites. $plus or minus$ 45 $degree$ -tension, iosipescu, and short beam shear tests were conducted ..

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incremental frictional abrasion-3. analysis of abrasion effects using photomicrographs of fabric cross sections

in the reported experiments, four blended polyester/cotton fabrics were subjected to incremental accelerotor abrasion. these fabrics varied in blend level, fabric geometry, and finish photomicrographs of stained fabric cross sections revealed clumping and uneven distribution of the two fibers within the yarns. types of fabric damage obser..

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soiling, staining, and yellowing characteristics of fabrics treated with resin or formaldehyde

in the reported test program, cotton and 50/50 polyester/cotton fabrics, untreated and with four formaldehyde crosslinking treatments and two resin finishes, were soiled with oily and nonoily soils and an oily stain. extent of soiling, ease of soil and stain removal, and the developmnet of yellowness were determined after repeated launder..

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fabric hand $em dash$ tactile sensory assessment

the assessment of fabric hand involves two major classes of variables: fabrics as stimuli with certain physical properties, and people as judges with certain traits. this research investigated the tactile sensory assessment of selected fabrics that varied in specified physical dimensions $em dash$ namely: stiffness, roughness, and thickne..

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cotton outdoor fabrics reinforced with glass fiber

in the reported experiments, outdoor fabrics suitable for tentage, tarpaulin, and similar uses were produced from cotton yarns reinforced with glass fiber. the experimental yarns were evaluated as filling in common warps. canvas fabrics in a weight range of 200 to 270 g/m**2 were woven. the fabrics were given a typical commercial finish f..

Home | News & Info | KOTITI 라이브러리 | 섬유기술정보 I 등록일 : 2016.11.02 I 조회수 : 347