巻号一覧
37 巻, 6 号
選択された号の論文の10件中1～10を表示しています
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富沢 木実1981 年 37 巻 6 号 p. P210-P214
発行日: 1981/06/10
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) -
岡川 章彦1981 年 37 巻 6 号 p. P215-P219
発行日: 1981/06/10
公開日: 2008/11/28
ジャーナル フリーPDF形式でダウンロード (1498K) -
日比 貞雄, 藤田 健一, 前田 松夫, 野田 明志, 鈴木 基弘, 尾崎 樹男1981 年 37 巻 6 号 p. T215-T228
発行日: 1981/06/10
公開日: 2008/11/28
ジャーナル フリーThe object of this paper is to introduce an equation for polarized fluoresence to evaluate the orientation of amorphous molecules in bi-axially stretched polymer films.
Especially, in deriving the equation the effects of light absorption and birefringence yields in the sample are taken into account, and the precise corrections of absorption and birefringence for the reflective measurement are also considered.抄録全体を表示PDF形式でダウンロード (792K) -
牧島 邦夫1981 年 37 巻 6 号 p. P220-P227
発行日: 1981/06/10
公開日: 2008/11/28
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宮田 奈美子1981 年 37 巻 6 号 p. T229-T235
発行日: 1981/06/10
公開日: 2008/11/28
ジャーナル フリーWaste paper pulp, as a cheap material, is porous and has hydroxyl groups derived from lignin and cellulose as their constituents. Cationic 2-(dimethylamino) ethyl methacrylate (DM) was graft copolymerized onto a waste paper pulp sample in order to synthesize effective waste water treatment agents for heavy metals and dye wastes. The grafting reaction and the removability were examined.
The following results were obtained.
1) Grafting of DM onto the waste paper pulp pretreated with peracetic acid readily proceeded in the presence of Fe2+, Cu_??_, and Ti3+ as redox initiators, and the degree of grafting and the grafting efficiency were remarkably high in comparison with the grafting in the absence of the metal ions.
2) The order of improving the degree of grafting and the grafting efficiency was Ti3+>Cu_??_>Fe2+, and the maxima of them were observed at optimum mole ratios of [metal salt]/[PO], [Fe(NH4)2(SO4)2]/[PO]=5, [CuCl]/[PO]=10, [TiCl3]/[PO]=50.
3) The amounts of Cr6+ and Cu2+ adsorbed on the DM graft copolymers, 2.1 mmol/g (grafting: 80%) and 0.4mmol/g (grafting: 20%), respectively, were larger than those on untreated waste paper pulp. Especially, the adsorption of Cr6+ on the graft copolymers was superior to that on a commerical polymer adsorbent under the same experimental conditions.
4) Untreated waste paper pulp removed some anionic dyes, e. g., an acid dye (67%) and a sulfur dye (8%) from the aqueous solutions. However, by graft 1-20% DM onto the waste paper pulp, the copolymers removed 93-100% of the dyes, in higher efficiency than active carbon and the commercial polymer adsorbent.抄録全体を表示PDF形式でダウンロード (514K) -
清水 慶昭, 木村 光雄1981 年 37 巻 6 号 p. T236-T240
発行日: 1981/06/10
公開日: 2008/11/28
ジャーナル フリーThe binding of five acid dyes, HAS, Acid Orange 7, Acid Orange 52, Acid Red 88 and Acid Blue 25, to gelation from the acidic solutions has been studied by polarography and equilibrium dialysis. The thermodynamic parameters were calculated from the temperature dependence. The following results were obtained:
(1) The binding of the acid dyes except Acid Orange 52 increase with the increase of pH.
(2) The binding at the constant pH decreases with temperature.
(3) The binding constants of the dyes are in the order, R-88>B-25>O-7>O-52>HAS, corresponding to the decrease of the inorganicity/organicity value of these dyes.
(4) The entropy change ΔS° is positive in the binding of R-88 or B-25. Hence, the hydrophobic bond seems to play a role in binding.抄録全体を表示PDF形式でダウンロード (303K) -
小笠原 真次, 浅見 弘昌, 木村 祥史, 黒岩 茂隆1981 年 37 巻 6 号 p. T241-T246
発行日: 1981/06/10
公開日: 2008/11/28
ジャーナル フリーIn the previous paper, it was reported that the diffusion of acid dye was markedly suppressed in the tannic acid-treated nylon 6 fiber by the electrostatic repulsion between dye anion and dissociated phenolic hydroxyl group of tannic acid.
In the present paper, in order to investigate in detail the effect of the electrostatic repulsion between the dye anion and the dissociated functional groups of tannic acid and nylon, ζ-potential of nylon 6 fibers containing various amounts of tannic acid in acid dye solutions at varying pH's was measured by streaming potential method. The surface charge density, σ, of the fiber was evaluated from the ζ-potential. Dyes used were Orange II (C. I. Acid Orange 7) and Diacid Supra Red 3B (C. I. Acid Red 35).
As the tannic acid content of fiber increased, both ζ-potential and surface charge density changed toward the more negative value, and consequently the isoelectric point of the fiber was shifted to lower pH. These results may be attributed to an increase in the negative charges on the fiber surface resulted from the dissociation of phenolic hydroxyl group of tannic acid absorbed.
A difference between the surface charge density in the solutions in the presence and absence of dye, -Δσ, decreased with the increase in tannic acid content of the fiber. This result can be explained clearly in terms of the electrostatic repulsion between dye anion and negative charge on the fiber.
Although the value of -Δσ increased with the decrease in pH of the solution, the abrupt increase at pH 2 to be expected from the adsorption isotherms of the same dyes in the previous paper was not observed. This fact suggests that around pH 2 these dyes behave as dye acid and are taken up by the fiber mostly in the acid form.抄録全体を表示PDF形式でダウンロード (357K) -
穴原 明司, 藤田 隆嘉, 勝野 邦夫, 山田 達弥1981 年 37 巻 6 号 p. T247-T257
発行日: 1981/06/10
公開日: 2008/11/28
ジャーナル フリー仮撚加工糸のトルクを低減する方法の一つとして,仮撚機の2段ヒータの出口に空気仮撚子を設け, 1段目仮撚方向とは逆方向の仮撚加工を施すことを試みた。得られた加工糸のトルクは,空気仮撚子によって加えられた撚数と良く対応し,通常の2段加工糸に比べて著しく低減された。その他の物性は,巻縮堅牢度の若干の減少を除いてほぼ同等であった。加工糸のトルクは,製編,染色工程などにおける取扱条件によって発現状態が変化する。従って汎用性をもったノントルク加工糸を得る条件はあり得ないが,取扱条件が明確になればノントルクにすることは可能である。空気仮撚子の構造としては,空気噴入孔が糸路に対して直角な場合,あるいは糸路からの排気が糸の走行と逆方向の場合には加撚効果は高いが,編地の外観から見て,噴入孔が傾斜角(60°)をもち,排気が糸と同方向の場合が好適であった。抄録全体を表示PDF形式でダウンロード (600K) -
小山 清人, 石塚 修1981 年 37 巻 6 号 p. T258-T261
発行日: 1981/06/10
公開日: 2008/11/28
ジャーナル フリーThe elongational behavior at a constant strain rate was studied for polypropylene melt samples with various molecular weights by means of an elongational rheometer with a pair of rotating clamps. The linear parts of the elongational viscosities depended strongly on the molecular weight: the dependence obeyed the 3.4 power law known for shear viscosity. The non-linearity parameters of the elongational viscosity were found to be almost independent of the molecular weight. The parameters predicted from the constitutive equation depended slightly on the molecular weight. Then, the molecular weight dependence found for polypropylene can be interpreted in terms of the Lodge model or the Wagner model.抄録全体を表示PDF形式でダウンロード (235K) -
卓 泰文, 小見山 二郎, 飯島 俊郎1981 年 37 巻 6 号 p. T262-T263
発行日: 1981/06/10
公開日: 2008/11/28
ジャーナル フリーナイロン中のアミノ基の酸性染料の収着と拡散に果す役割を明確にするために,ポリビニルアミンーコロジオン膜によるOrange IIの収着を調べ,その機構が多元的であることを認めた。抄録全体を表示PDF形式でダウンロード (115K)
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