巻号一覧
35 巻, 3 号
選択された号の論文の11件中1～11を表示しています
- |<
- <
- 1
- >
- >|
-
1979 年 35 巻 3 号 p. P76
発行日: 1979年
公開日: 2008/11/28
ジャーナル フリーPDF形式でダウンロード (452K) -
表面光グラフト法田附 重夫1979 年 35 巻 3 号 p. P61-P68
発行日: 1979/03/10
公開日: 2008/11/28
ジャーナル フリーPDF形式でダウンロード (686K) -
細川 孝尚1979 年 35 巻 3 号 p. P69-P73
発行日: 1979/03/10
公開日: 2008/11/28
ジャーナル フリーPDF形式でダウンロード (1217K) -
新田 秀次1979 年 35 巻 3 号 p. P74-P75
発行日: 1979/03/10
公開日: 2008/11/28
ジャーナル フリーPDF形式でダウンロード (178K) -
高橋 雅江, 竹中 はる子1979 年 35 巻 3 号 p. T99-T104
発行日: 1979/03/10
公開日: 2008/11/28
ジャーナル フリーPossible molecular chain folding of native cellulose was studied mainly by examining X-ray diffractions of native cellulose in woods treated with 4 N hydrochloric acid.
The following results were obtained:
1) Both samples of softwood [Tsuga Sieboldii Carr. (TSUGA), Cryptomeria japonica D. Don (SUGI) and Chamaecyparis obtusa Endl. (HINOKI)] and those of hardwood [Betula Tauschii Koidz. (KABA), Fraxinus mandshurica Rupr. (YACHIDAMO) and Quercus serrata Thunb (NARA)] gave ca. 480 Å as the long period obtained by the small angle scattering, in spite of the differences in the rates of hydrolysis and in the crystall inities.
2) On the other hand, the crystallite lengths of these samples measured by the wide angle scattering were ca. 220 Å.
These results suggest that the fine structure of native cellulose consists of the folded chain molecules.抄録全体を表示PDF形式でダウンロード (1413K) -
永田 実, 清造 剛1979 年 35 巻 3 号 p. T105-T111
発行日: 1979/03/10
公開日: 2008/11/28
ジャーナル フリーGlass transition and crystallization were studied for polyether-ester homologs having halogen substituent on the benzene ring; Polyethylene 1, 2-diphenoxyethane-p, p′-dicarboxylate (PEB), Polyethylene 1, 2-di (o-chlorophenoxy) ethane-p, p′-dicarboxylate (PEBCl2), Polyethylene 1, 2-di (o-bromophenoxy) ethane-p, p′-dicarboxylate (PEBBr2), Polyethylene 1, 2-di (o, o′-dichlorophenoxy) ethane-p, p′-dicarboxylate (PEBCl4) and Polyethylene 1, 2-di (o, o′-dibromophenoxy) ethane-p, p′-dicarboxylate (PEBBr4).
Glass transition temperature measured by DTA increased in the order, PEB<PEBCl2_??_PEBCl4<PEBBr2<PEBBr4. Cold crystallization temperature measured by DTA increased in the order, PEB<PEBCl2<PEBBr2, and PEBCl4 and PEBBr4 showed no crystallization peak. The crystallization rate followed by the change of density decreased in the order, PEB>PEBCl2>PEBBr2>PEBCl4. Crystallinity estimated by the X-ray diffraction intensity curve also decreased by halogen substitution. Effect of halogen substitution and crystallization on the infrared spectrum of polyether-ester homologs was studied. Some discussion was made on these results.抄録全体を表示PDF形式でダウンロード (415K) -
大沢 直志, 三輪 実, 後藤 信幸, 中山 晃1979 年 35 巻 3 号 p. T112-T118
発行日: 1979/03/10
公開日: 2008/11/28
ジャーナル フリーIn order to get a foam flexible and heat insulating under high static hydraulic pressure, a flexible rubber foam orderly embedded with spherical rigid foams was formed. Its thermal conductivity and flexural rigidity were studied.
1) Assuming a unit model of a spherical rigid foam placed in the center of flexible rubber foam, the thermal conductivity of the composite foam was discussed for the steady one dimensional heat flow and an equation for the over-all coefficient of heat transmission under different pressure was obtained.
An apparatus was devised, by which the conduction of composite foam under static hydraulic pressures corresponding to water depth 0_??_100m can be measured, and over-all coefficients of heat transmission of composite foam were obtained. The calculated values are in good agreement with the experimental ones.
2) Filling effect of spherical rigid foams to heat insulation is notable under static hydraulic pressure of over 20m depth. Under static hydraulic pressure of 100m depth, it was found that the coefficient of heat insulation of the composite foam of experimentally maximum filling increases about 35% as compared with that of unfilled foam. It can be estimated theoretically that the coefficient of heat insulation of a composite foam filled closely in square array structure increases about 110%.
3) The flexural rigidity of the maximum filling composite foam obtained is half of the rigidity of a unfilled foam having equal heat insulation under static hydraulic pressure of 100m depth.抄録全体を表示PDF形式でダウンロード (505K) -
片山 良徳, 加藤 育, 清水 幸夫, 清水 二郎1979 年 35 巻 3 号 p. T119-T124
発行日: 1979/03/10
公開日: 2008/11/28
ジャーナル フリーFrom the viewpoint of the quality evaluation of cigarettes, the firmness of cigarette is one of the most important properties. It has a high correlation to the bulk density and the stress of the cut tobacco assembly under the compressive conditiíon.
To clarify the compressive characteristics of the cut tobacco assembly, the dye and gelatin tracer techniques were applied to find the relationship between the bulk density of specimens and the number of contact points per cm of the constituent. The state of the specimen-to-tracer contact points was observed. As the samples of this examination, strips in three model forms, i.e., flat, curled and zigzag, were cut out from the uniform sheet reconstituted with the fibrous composition of tobacco leaf, instead of the cut tobacco.
The following results were obtained:
1) The number of contacts per cm of the specimen was related to increase with the increase in the bulk density by,
N=βρmb N: number of contacts per cm of specimen ρb: bulk density of specimens (g/cm3) β, m: empirical constant
2) The observation of the tracer attached to the specimen showed that the shreds receive compressive stress predominantly on the flat surfaces. The curled type specimen, in some cases, receives the stress on the side surfaces.抄録全体を表示PDF形式でダウンロード (1079K) -
堀 照夫, 清水 融1979 年 35 巻 3 号 p. T125-T130
発行日: 1979/03/10
公開日: 2008/11/28
ジャーナル フリーThe formulation of sample distribution in column-chromatography, which was given in our previous paper, has been extended to a model dyeing of textile assembly by liquor flow. The equation derived for the dyeing from infinite bath was in general agreement with the observation on the dyeing practice of polyamide-powder column. From the theoretical and the practical distribution profiles obtained under several conditions we could conclude that “level dyeing” is attained rapidly by the rapid flow or by the low affinity of dye to substrate.
The most interesting result was that the distribution profile of dye in the column depended not only on the flow rate and the affinity, but also on the particle size (corresponding fiber diameter).抄録全体を表示PDF形式でダウンロード (398K) -
伊達 雅和, 松井 宏仁, 福岡 重紀1979 年 35 巻 3 号 p. T131-T138
発行日: 1979/03/10
公開日: 2008/11/28
ジャーナル フリーPolyester cotton blended fabrics (E/C) were flame resistant-finished with THPC and its precondensates (THPC-PCD) by the pad-dry-cure process and the ammonia gas-cure process. The laundering durability of the flame resistance, the fixation percentage and retention % for laundering of the treated E/C were measured, and the following results were obtained.
Both fixation and retention % of THPC-PCD are higher than those of THPC monomer. THPC-PCD-II (synthesized from THPC, urea and melamine as shown Table 1) is more effective than THPC-PCD-1 (from THPC and urea). The fixation % of these flameretardants on E/C (65/35) is the highest when urea-methylolmelamine was used as a fixing agents. The fixing agents are in the order of fixing ability as, urea-methylolmelamine>urea>ammonia
The reaction mechanism of THPC-PCD in the fixing process was discussed on IR absorption spectra.抄録全体を表示PDF形式でダウンロード (533K) -
橋本 勇1979 年 35 巻 3 号 p. T139-T142
発行日: 1979/03/10
公開日: 2008/11/28
ジャーナル フリーChanges of the fine structure of nylon 6 during dyeing with hematoxylin (C. I. Natural Black 1 and 2) has been studied by means of X-ray diffraction, dynamic mechanical measurements and stress-strain test. The following results were obtained.
(1) The swelling and the shrinkage increased with increasing concentration of hematoxylin.
(2) The (200) lattice spacing and crystallite size increased during the dyeing, but the (002) lattice spacing decreased.
(3) The temperatures giving the maximum values of tanδ for dyed specimens were lower than those of the undyed ones.
(4) The initial modulus increased with the increasing amount of absorbed dye.抄録全体を表示PDF形式でダウンロード (821K)
- |<
- <
- 1
- >
- >|