巻号一覧
54 巻, 11 号
選択された号の論文の14件中1～14を表示しています
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川崎 元夫, 木村 良晴, 岩崎 立夫, 山根 秀樹1998 年 54 巻 11 号 p. 577-582
発行日: 1998/11/10
公開日: 2008/06/30
ジャーナル フリーSilicon monoxide (SiO) amorphous layer was deposited on the biaxially oriented nylon 6 films in a vacuum evaporator. This deposited layer tightly attaches to the nylon film. SiO deposited nylon 6 films thus obtained are transparent and show a high barrier to the water vapor and oxgen. Wettability of the SiO surface of the film to the water, ink, and the adhesives are satisfactory for the gravure printing and lamination with polyolefin films. It was found that the gloss of nylon film, which reflects the surface roughness of the film, affects the uniformity of SiO deposited layer on the nylon film and barrier property of the deposited films. Permeabilities of the water vapor and oxygen through the SiO deposited nylon films were fairly high just after the deposition, especially when the deposited layer was thin, and then decreased to lower equilibrium values. These equilibrium values are surprisingly low comparing with other high barrier films such as nylon and polypropylene films coated with poly (vinylidene chloride). Further the SiO vacuum deposition was continuously carried out on the running nylon film. We found that the thickness of the silicon oxide layer on the nylon film and the water permeability are strongly related to the running velocity of the nylon film and the applied electric current to the heater.抄録全体を表示PDF形式でダウンロード (483K) -
太田 利彦, 岩田 理, 富田 裕子, 中井 明美1998 年 54 巻 11 号 p. 583-590
発行日: 1998/11/10
公開日: 2008/06/30
ジャーナル フリーThe function of environmental humidity control (B-value) of Nylon6 fabric, Rayon fabric and Tencel fabric was evaluated as the representative of commodity textiles showing a moisture sorption-desorption. B-value of these textiles was depending on their moisture sorption: the nearly same value as Woolen fabric for Rayon fabric, the somewhat higher value than Cotton fabric for Tencel fabric and the considerably lower value than Cotton fabric for Nylon6 fabric were obtained at the specimen's weight of 0 to 20g/a volume of closed vessel (V=0.012m3). The change of moisture sorption in each textile during measurement of B-value was given as the difference between the moisture sorption isotherm at the side of lower temperature (25°C) and the moisture desorption isotherm at the side of higher temperature (35°C) . Based on this fact, the calculated relation curve of B-value and specimen's weight (g/V), using the moisture sorption isotherm at 25°C and the moisture desorption isotherm at 35°C, agreed well with the observed one.
Furthermore, the B-values at 7.5g/V of a mixture composed of various fabrics including fabrics in previous paper [Sen'i Gakkaishi, 52, 234 (1996)], basically, was given as the average value with a mixed ratio of the B-value at 7.5g/V of its each component. Moreover, even if the relation curves of B-value and Wo/V between each component in a mixture was markedly different, it was given as the conversion B-value for a kind of component which was determined in this paper.抄録全体を表示PDF形式でダウンロード (693K) -
山田 徹郎, 佐藤 誠, 上石 洋一, 大谷 杉郎, 小島 昭1998 年 54 巻 11 号 p. 591-596
発行日: 1998/11/10
公開日: 2008/06/30
ジャーナル フリーIt is known that a large amount of activated sludge was quickly adhered on carbon fibre that was soaked in water containing activated sludge.
As carbon fibre has an excellent bio-affinity, it is very interesting to use carbon fibre as carrier water of bio-film for wastewater treatment.
Several factors that affect the amount of adhered activated sludge on carbon fibre were considered.
The change of amount of activated sludge adhered on carbon fibre soaked in water was observed through the period from just before soaking until several hours after.
Adhesion of activated sludge occurred rapidly in the initial stage and got slower, after that.
According to a numerical analysis, the amount of adhered activated sludge was calculated by y=A (1-EXP (-t/τ)) (here A and τ are constant).
This was corresponding in the experiment result at the first stage.
When an activated sludge was shake off from a carbon fibre, it was found that a tightly adhered layer of activated sludge exist around the carbon fibre.抄録全体を表示PDF形式でダウンロード (540K) -
増子 富美, 坂本 宗仙1998 年 54 巻 11 号 p. 597-609
発行日: 1998/11/10
公開日: 2008/06/30
ジャーナル フリーCurie-point pyrolysis of chlorodeoxycellulose (Cell-Cl) samples prepared from microcrystalline cellulose with N-chlorosuccinimide and triphenyphosphine in LiCl/N, N-dimethylacetamide under homogeneous conditions, is studied by gas chromatography (GC) and GC-mass spectrometry. Chlorine-containing pyrolytic products obtained by pyrolysis of Cell-Cl samples with degrees of substitution (DS) between 0.33 and 1.59 at 590°C for 4 sec are hydrogen chloride, chloromethane, chloroethane, vinyl chloride, and chloroacetoaldehyde. Another chlorine-containing product, which is formed only from Cell-Cl samples with DS higher than 1.2, is 5-chloromethyl-2-furaldehyde. Effect of pyrolytic temperature on the pyrolytic behaviour of cellulose and Cell-Cl with DS of 0.81 is studied at four levels of temperature between 385 and 764°C. Cellulose gives only carbon dioxide and 2-furaldehyde when pyrolyzed at 385°C, while Cell-Cl with DS of 0.81 gives 13 non-chlorine products. The numbers of pyrolysis products formed from cellulose and Cell-Cl reach their maxima at 590°C . The total GC peak area of cellulose increases linearly with raising pyrolvsis temperature while that of the Cell-Cl reaches the maximum at 590°C.抄録全体を表示PDF形式でダウンロード (909K) -
多田 実, 西松 豊典, 関口 定, 鳥羽 栄治1998 年 54 巻 11 号 p. 610-617
発行日: 1998/11/10
公開日: 2008/06/30
ジャーナル フリーThe importance of comfortable seat design is increasing as customer's expectations rise. Because automotive seats are the significant man machine interface in automobiles.
The sitting comfort of automotive seats, whose top coated fabrics were changed and structures were same, were evaluated by only human tactual sensation while sitting on these seats. The adjectives used for the sensory evaluation by the human tactile sensation were examined by factor analysis.
As the result of factor analysis, two adjectives “high-class” and “thick” were common and significant in evaluating the comfort. But, “sporty” could not be evaluated by the top coated fabrics of seats.
From the result of correlation analysis, it was found that adjectives “smooth”, “warm” and “soft” of top coated fabric were correlated with “high-class” of seat.
Further, “high-class” of seat was described by the multiple regression equation of the impact force and the compressive property from the result of multiple regression analysis.抄録全体を表示PDF形式でダウンロード (1313K) -
荒井 康二郎, 三友 宏志1998 年 54 巻 11 号 p. 618-623
発行日: 1998/11/10
公開日: 2008/06/30
ジャーナル フリーRelations between quasi-equilibrium stress and temperature under constant length in water have been determined in the range of strain up to 60% for wet-spun acrylic fibers prepared under different spinning condition, and in the range of strain up to 140% for cross-linked acrylic fiber. From analysis of these data, the changes of the entropy component and internal energy component of the fibers with strain were calculated.
Quasi-equilibrium stress-strain curves are separated into 2 parts, in which the first elastic region has modulus of 10MPa order, and the second elastic region has modulus of 1MPa order, close to that of natural rubber. In the first region, relatively small stress relaxation and large elastic recovery after stress relaxation are observed.
Relaxation of acrylic fibers in steam after stretch in process lowers contribution of energy component and raises glass transition temperature of the fiber. These changes of fiber structure reflect to the lower stress relaxation and the higher elastic recovery.抄録全体を表示PDF形式でダウンロード (412K) -
佐藤 淳也, Niamh O'Mara, 齊藤 政利, 宮武 宗利, 今田 清久1998 年 54 巻 11 号 p. 624-628
発行日: 1998/11/10
公開日: 2008/06/30
ジャーナル フリーIn order to disclose the relationship between morphology and fibrillation for the regenerated cellulose fibers, observation of cross-sectional morphology was carried out on enzyme treated Cupro®, LYOCEL, which readily occur fibrillation, and anti-fibrillation fibers such as newly developed Cupro (fibrillation-resistant Cupro), Viscose Rayon. The outer (skin) layer of Cupro®, and Viscose Rayon remained almost unchanged. Inner (core) ones of Cupro®, were decomposed into micro layers. The fibrillation-resistant Cupro did not show such decomposition behavior in core layer. LYOCEL swollen by caustic soda solution was more uniformly and rapidly decomposed comparing to other fibers. It was concluded that the skin-core structure and the degree of the hydrogen bonding in the amorphous phase are closely related to the fibrillation-resistance character of the regenerated cellulose fibers, because the amorphous region of the regenerated cellulose fiber tends to be predominantly decomposed by the enzyme.抄録全体を表示PDF形式でダウンロード (2090K) -
陣内 浩司, 西川 幸宏, 橋本 竹治1998 年 54 巻 11 号 p. P382-P386
発行日: 1998/11/10
公開日: 2008/06/30
ジャーナル フリーPDF形式でダウンロード (2974K) -
高橋 良彰1998 年 54 巻 11 号 p. P387-P390
発行日: 1998/11/10
公開日: 2008/06/30
ジャーナル フリーPDF形式でダウンロード (1768K) -
渡辺 宏1998 年 54 巻 11 号 p. P391-P395
発行日: 1998/11/10
公開日: 2008/06/30
ジャーナル フリーPDF形式でダウンロード (1488K) -
櫻井 伸一1998 年 54 巻 11 号 p. P396-P400
発行日: 1998/11/10
公開日: 2008/06/30
ジャーナル フリーPDF形式でダウンロード (1568K) -
吉岡 敏雄1998 年 54 巻 11 号 p. P401-P403
発行日: 1998/11/10
公開日: 2008/06/30
ジャーナル フリーPDF形式でダウンロード (736K) -
犬飼 雄一1998 年 54 巻 11 号 p. P404-P408
発行日: 1998/11/10
公開日: 2008/06/30
ジャーナル フリーPDF形式でダウンロード (1115K) -
都志 彰人, 島田 行生, 坂喜 正1998 年 54 巻 11 号 p. P409-P412
発行日: 1998/11/10
公開日: 2008/06/30
ジャーナル フリーPDF形式でダウンロード (1936K)
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