巻号一覧
39 巻, 10 号
選択された号の論文の13件中1～13を表示しています
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新井 幸三1983 年 39 巻 10 号 p. P343-P352
発行日: 1983/10/10
公開日: 2008/11/28
ジャーナル フリーPDF形式でダウンロード (1243K) -
石川 博, 奈倉 正宣1983 年 39 巻 10 号 p. P353-P363
発行日: 1983/10/10
公開日: 2008/11/28
ジャーナル フリーPDF形式でダウンロード (1280K) -
伊藤 孝, 坂奥 喜一郎1983 年 39 巻 10 号 p. P364-P373
発行日: 1983/10/10
公開日: 2008/11/28
ジャーナル フリーPDF形式でダウンロード (3449K) -
松田 道生1983 年 39 巻 10 号 p. P374-P380
発行日: 1983/10/10
公開日: 2008/11/28
ジャーナル フリーPDF形式でダウンロード (2295K) -
松本 元1983 年 39 巻 10 号 p. P381-P387
発行日: 1983/10/10
公開日: 2008/11/28
ジャーナル フリーPDF形式でダウンロード (1401K) -
畠山 兵衛1983 年 39 巻 10 号 p. P388-P393
発行日: 1983/10/10
公開日: 2008/11/28
ジャーナル フリーPDF形式でダウンロード (406K) -
田中 信行1983 年 39 巻 10 号 p. T393-T397
発行日: 1983/10/10
公開日: 2008/11/28
ジャーナル フリー同形結晶を形成しない二成分系共重合体の融点降下に関するより一般的な式が導びかれた。この式を用いて,種々のコンフィギュレーションをもつエチレン/プロピレン共重合体のRISモデルおよびメトキシメチル化ナイロン6について,融解温度と組成との関係が検討された。ブロック連鎖が形成されると,融解温度は,ランダム共重合体のそれより高温側にシフトする過程が理論的に明らかにされた。抄録全体を表示PDF形式でダウンロード (245K) -
清水 二郎, 奥居 徳昌, 玉井 研一郎1983 年 39 巻 10 号 p. T398-T407
発行日: 1983/10/10
公開日: 2008/11/28
ジャーナル フリー高速溶融紡糸における空気摩擦抵抗を巻取速度6,000 m/minの領域まで測定した。空気抗力係数(Cf)はレイノルズ数(Red)の関数としてと表わされ, Kの値として,静止空気中へ紡止した場合には0.23-0.49,並行空気流中へ紡糸した場合は0.77が得られた。このKの値は紡糸中の繊維の横揺れ振動と走行中の繊維間の間隔に大きく影響された。高速紡糸においては,紡糸応力(σL)に対し,空気抵抗(σair)と慣性力(σin)に基づく応力の寄与が最も大きく,と近似できる。この単純な式から空気抗力係数(すなわち式中のKとn値)が簡単に求められ,さらに繊維の固化点の位置も予想できる。抄録全体を表示PDF形式でダウンロード (546K) -
中島 利誠, 小笠原 史子1983 年 39 巻 10 号 p. T408-T414
発行日: 1983/10/10
公開日: 2008/11/28
ジャーナル フリーAdsorption behavior of organic compounds on poly (4-vinylpyridine) (P-4-VP) was studied by the inverse gas chromatography at temperatures encompassing the glass transition point (Tg) of the polymer.
Using P-4-VP as a stationary phase in the GC column, retention data were obtained for a series of polar organic probes (good solvents): n-propanol, n-butanol, n-amylalcohol and n-hexanol, and a nonpolar hydrocarbon (nonsolvent): n-dodecane.
At temperatures well above Tg, the specific retention volume (Vg) increased linearly with increasing peak area (S), whereas at temperatures below Tg, two distinct regions in the Vg and S relation were observed. At the low probe concentrations, Vg increased with decreasing S markedly in a curvilinear fashion, while at the high concentrations, Vg increased with increasing S linearly. In the low concentration region, plots of 1/Vg against √S for all systems were represented by straight lines. The limiting specific retention volumes (V0g ) were estimated in both regions by extrapolating the respective relations to S=0.
Values of In V0g were plotted against the reciprocal of thermodynamic temperature. Each plot showed a Z shaped curve characteristic of the system in which a thermal transition occurred in the temperature region concerned. From the plots, Tg of P-4-VP was estimated as 126°C.
Heats of adsorption at the infinite dilution of the solute in the stationary phase were determined from the temperature dependence of Vg. Values of 19-21 and 13-15kcal/mol were obtained, respectively, at the low and high concentrations.
In the present system, plot of log V0g vs. boiling point was represented not by a straight line, which is observed generally for systems of n-alcohol and polymer, but by a curve with a minimum. This may indicate that n-alcohols of the lower boiling point have the stronger affinity for P-4-VP.
From these results, it is considered that adsorption of the probe on the surface of the stationary phase dominated at temperatures below Tg and that penetration of the probe into the bulk occurred at temperatures above Tg.抄録全体を表示PDF形式でダウンロード (406K) -
中村 立子, 吉田 博久, 飛田 満彦1983 年 39 巻 10 号 p. T415-T420
発行日: 1983/10/10
公開日: 2008/11/28
ジャーナル フリーポリアクリロニトリル(PAN)フィルムは紫外光の照射により茶色に着色することがわかった。IRスペクトルの観察から,その反応は熱反応と同様に複雑な反応であり, C=C, C=OやC=Nなどの二重結合の生成が認められた。しかし, UVスペクトル変化や赤外二色性の測定結果は,光反応生成物と熱反応の主生成物は異なる化学構造であることを示した。また光反応は熱反応よりも分子配向の影響が大きく,どちらの反応でも分子配向によリカルボニル基の生成が増加する。抄録全体を表示PDF形式でダウンロード (334K) -
久保田 静男, 大萩 成男, 中岡 忠治1983 年 39 巻 10 号 p. T421-T431
発行日: 1983/10/10
公開日: 2008/11/28
ジャーナル フリーHeat transfer printing was examined on polyester/cotton (E/C) blends modified by graft copolymerization of various vinyl monomers initiated with Ce>IV> ion.
The graft copolymerization of vinyl monomers except for acrylamide (AAm) and acrylonitrile (AN) onto E/C blend was found to increase K/S value of the fabrics heat-transfer printed with Teraprint Blue R (C. I. Disperse Blue 14) in the following order: vinyl acetate (VAc)> n-butyl meth-acrylate (n-BuMA)≈methyl methacrylate (MMA)>2-ethylhexyl acrylate (2-EtHA)>n-butyl acrylate (n-BuA)>methyl acrylate (MeA)>ethyl acrylate (EtA)≈styrene, However, the graft copolymerization of AAm and AN did not increase the K/S value of the heat transfer printed fabrics.
Tear strength of the 12.1%-MMA grafted E/C broad retained 72% in warp and 87% in weft of those of the untreated fabric. Tensile strength of the broad retained 92% in warp and 103% in weft. With increasing percent grafting, the moisture regain of the grafted E/C broad decreased for the all monomers except for AAm, while it increased for AAm, The graft copolymerization of vinyl monomers increased the flexual rigidity of the grafted E/C broad in the following order: n-BuMA>MeA>VAc>MMA>2-EtHA>EtA>n-BuA. The handle of the n-BuA-, EtA- and 2-EtHA-grafted E/C broad was soft and sticky, while the handle of the MMA-n-BuA (74.8 mole% in comonomer)-grafted E/C broad was soft and not sticky.
The fabrics heat transfer printed onto the MMA-n-BuA-grafted E/C broad with 14 dyes showed a satisfied color fastness to dry heating, light, perspiration, rubbing and washing.抄録全体を表示PDF形式でダウンロード (1185K) -
新宅 救徳, 岩木 信男, 喜成 年泰1983 年 39 巻 10 号 p. T432-T437
発行日: 1983/10/10
公開日: 2008/11/28
ジャーナル フリーIn the process of manufacturing yarn, we very often rotate yarn package, and the electric power needed for that is considerably large. In Ishikawa prefecture, the consumption of the electric power by the twister has been investigated for the purpose of saving energy. Although the investigation was carried out as a whole of twisting system, it is important to analyze each factor in order to improve the efficiency in saving energy. We took notice of the power which a rotating yarn package loses in stirring the air around it, and to obtain its quantity, we investigated the relationship between the coefficient of friction loss Cf and the Reynolds number Re. For the estimation of Re, the radius of the cylinder was taken as the significant liner dimension. The following results were obtained.
(1) In case of a smooth cylinder, Cf=375/Re and Cf=0.049Re-1/5 were obtained where Re is below 0.6×105 and above 0.9×105, respectively.
(2) In case of a cylinder on which a cotton yarn is wound, its Cf is equal to the value for the smooth cylinder when Re=0.2×105, and is proportional to Re-1/5
(3) When the package is covered, Cf is reduced. Especially, a remarkable reduction in Cf occurs for a package with rough surface.抄録全体を表示PDF形式でダウンロード (374K) -
村田 幸進, 清造 剛1983 年 39 巻 10 号 p. T438-T442
発行日: 1983/10/10
公開日: 2008/11/28
ジャーナル フリーThe polystyrene films containing 1, 4-diaminoanthraquinone dye were examined with an optical microscope during heating and cooling at constant rates. Spherulitic structures were observed which were composed of needle-like crystallites of the dye in the cooling process. Size of these spherulites increased with increasing dye content and with decreasing cooling rate. Size of crystallites formed in cooling process was larger than that formed in heating process.抄録全体を表示PDF形式でダウンロード (1430K)
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