Surface functional and composite materials of magnesium alloys using a polymer plating method.

采用聚合物镀覆方法的镁合金表面功能复合材料。

• 批准号: 11225201
• 负责人: MORI Kunio
• 金额: $ 25.28万
• 依托单位: Iwate University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research on Priority Areas
• 财政年份: 1999
• 资助国家: 日本
• 起止时间: 1999 至 2002
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-11225201/
• 关键词: AZ91; triazie dithiols; Polymer plating; Polymer films; Film properties; Corrosion resistance; Adhesion; Recycle; Magnesium Alloys; Triazine dithiols; Polymer plating; Anti corrosion; Adhesion; 有機メッキ条件; 被膜構造; 飽和水蒸気腐食; 塩水中腐食; ゴムとの直接架橋接着

A number of 6-substituted-1, 3, 5-triazine-2, 4-dithiols were prepared and obtained triazine dithiols ware electrochemically polymer-plated on magnesium alloys. The polymer plating of triazine dithiols gave corrsion resistance and adhesion properties on magnesium alloy surfaces. Polymer films on magnesium alloys were removed by immersing them into organic solvents.6-Dihexylamino-1, 3, 5-triazine-2, 4-dithiol (DHN) was the best effective to inhibit the corrosion of magnesium alloys which are polymer plated by trizaine dithiols. It was clear that some factors such as plating time, current density, DHN concentration, support electrolytes and their concentration had a significant effect on the formation of compact polymer films, adhesion properties to magnesium surfaces, and film formation rate. Optimal condition which give good polymer films, was obtained at 10℃ and a current density of 0.02mA/cm^2 in 0.1 mol/dm^3-NaOH aqueous solution of DHN (5mmol/dm^3). Magnesium alloys treated by the conditions, showed polarization resistence in the range of 30,000 to 70,000 Ω/cm and had a 0.001mm/y of corrosion rate which was calculate from corrosion current. This technique have been adopted to treat the case of magnetic memorial disc MO.On the other hand, polymer products such as poly (phenylene sulfide) (PPS), paints and rubbers adhered to magnesium alloys in order to obtain composite materials. 6-Diallyamino (DAN) and 6-mercapto (TIN)-1, 3, 5-triazine-2, 4-dithiols were effective for adhering with paints and with PPS or rubbers.The polymer films on magnesium alloys were perfectly removed in dimethylamide containing LiBH4 and CaH. Addherents between magnesium alloys and PPS or rubbers were destroyed in NH_2NH_2 aqueous solutions. The present technique is recyclable.

合成了一系列6-取代-1，3，5-三嗪-2，4-二硫醇化合物，并在镁合金上进行了电镀，得到了三嗪二硫醇化合物。三氮二硫醇聚合物镀镁合金表面具有良好的耐腐蚀性和结合力。采用有机溶剂浸泡的方法去除镁合金表面的聚合物膜，其中6-二己氨基-1，3，5-三氮-2，4-二硫醇(Dhn)对三氮二硫醇聚合物镀镁合金的缓蚀效果最好。结果表明，电镀时间、电流密度、dhn浓度、支持电解质及其浓度等因素对致密聚合物膜的形成、与镁表面的附着力和成膜率有显著影响。在0.1mol/dm~3-NaOH水溶液(5℃/dm~3)中，当电流密度为0.02 mA/cm~2，电流密度为0.02 mA/cm~2，电流密度为10 mA时，得到了性能良好的聚合物膜。经该条件处理的镁合金的极化电阻在30,000~70,000Ω/cm之间，腐蚀速率由腐蚀电流计算为0.001 mm/年。这项技术已被用于治疗磁性记忆盘金属氧化物的情况。另一方面，聚合物产品，如聚苯硫醚(PPS)，涂料和橡胶粘在镁合金上，以获得复合材料。6-二烯丙氨基(DAN)和6-巯基(锡)-1，3，5-三嗪-2，4-二硫醇对涂料、聚苯硫醚(PPS)和橡胶有较好的附着力，在含有LiBH4和CAH的二甲基胺中，镁合金表面的聚合物膜被完全去除。在NH_2NH_2水溶液中，镁合金与聚苯硫醚或橡胶之间的粘结剂被破坏。目前的技术是可回收的。

项目成果

森邦夫: "マグネシウム合金とゴムの加硫接着に及ぼすゴム配合因子の影響"日本ゴム協会誌. 75. 210-216 (2002)

Kunio Mori：“橡胶配合因素对镁合金与橡胶之间硫化粘合力的影响”日本橡胶协会杂志75. 210-216 (2002)。

P.Gong: "Adhesion between Polymer Plated Metals and Rubbers during Vulcanization, Part2. Direct Adhesion between Polymer Plated Magnesium Alloy AZ91D and Acrylic Rubber during Vulcanization"NIPPON GOMU KYOKAISHI. 74(9). 368-373 (2001)

P.Gong：“硫化过程中聚合物镀层金属与橡胶之间的粘合，第二部分。硫化过程中聚合物镀层镁合金AZ91D与丙烯酸橡胶之间的直接粘合”NIPPON GOMU KYOKAISHI。

K Mori,H.Hirahara,Y.Oishi and N.Kumagai: "Effect of Triazine Dithiois on the Polymer Plating of Magnesium Alloys:"Material Science Forum. Vols.350-351. 223-234 (2000)

K Mori、H.Hirahara、Y.Oishi 和 N.Kumagai：“二硫代三嗪对镁合金聚合物镀层的影响：”材料科学论坛。

森 邦夫、平原英俊、大石好行: "6-ジアリルアミノ-1,3,5-トリアジン-2,4-ジチオールの有機メッキに及ぼすNaNO2の促進作用"表面技術. 50. 68-74 (1999)

Kunio Mori、Hidetoshi Hirahara、Yoshiyuki Oishi：“NaNO2 对 6-二烯丙基氨基-1,3,5-三嗪-2,4-二硫醇有机电镀的加速作用”表面技术。 50. 68-74 (1999)

Kunio Mori: "Electrochemical Reaction in the Polymer Plating of Triazine Dithiols"Polymer Journal. 35. 568-572 (2003)

Kunio Mori：“三嗪二硫醇聚合物电镀中的电化学反应”聚合物杂志。