本文選題：碳納米管 + ABS�。� 參考：《桂林理工大學》2017年碩士論文

【摘要】：電解精煉銅是實現(xiàn)銅純化的有效手段。在電解精煉銅設(shè)備中陰極基板多為工業(yè)純鈦,其價格昂貴,而且在電解過程中會不斷損耗,同時剝離過程也需要專用的設(shè)備。本論文探索將工程塑ABS(料丙烯腈-丁二烯-苯乙烯塑料)與多壁碳納米管(MWNTs)經(jīng)雙螺桿共混制備導(dǎo)電3D打印材料,借助3D打印技術(shù)便捷制備實驗室銅電解槽及基板,采用納米導(dǎo)電復(fù)合材料基板代替純鈦,研究了MWNTs/ABS導(dǎo)電基板銅的電沉積過程及電解銅形貌。圍繞導(dǎo)電3D打印耗材的制備,本論文先后制備了MWNTs/ABS顆粒復(fù)合材料、MWNTs/摻混型ABS復(fù)合材料以及SBS(苯乙烯系熱塑性彈性體)增韌摻混型MWNTs/ABS復(fù)合材料,對材料進行了力學性能測試、動態(tài)力學性能測試、拉曼光譜測試、斷口SEM測試、熱穩(wěn)定性測試、熔體流速測試,得到以下結(jié)論:1、ABS顆粒制備導(dǎo)電復(fù)合材料時,隨著MWNTs含量增加復(fù)合材料的導(dǎo)電性、拉伸強度、硬度、儲能模量、損失模量、玻璃轉(zhuǎn)化溫度不斷提高,復(fù)合材料的熱穩(wěn)定性未受到明顯影響,但是韌性以及熔體流速下降;復(fù)合材料的導(dǎo)電性隨雙螺桿共混次數(shù)增加而提高。2、摻混型ABS的拉伸強度、彎曲強度隨著ABS高膠粉含量增加而減小,沖擊強度不斷提高,當ABS高膠粉∶SAN樹脂為25∶75時制備的摻混型ABS性能最接近通用級別ABS。摻混型MWNTs/ABS復(fù)合材料的導(dǎo)電性、拉伸強度、硬度、儲能模量、損失模量、玻璃轉(zhuǎn)化溫度隨著MWNTs含量的增加不斷提高,但是沖擊強度以及熔體流速變小,復(fù)合材料變脆,而且當添加量超過5%之后復(fù)合材料的熱穩(wěn)定性下降。3、SBS添加到復(fù)合材料中后,復(fù)合材料的韌性以及熱穩(wěn)定性得到了一定程度的提高,但導(dǎo)電性、拉伸強度、彎曲強度儲能模量、損失模量隨著添加量的增加而降低,MWNTs在ABS中的分散性變差。4、在優(yōu)化條件下,制備出符合FDM型3D打印使用要求的導(dǎo)電功能(直徑1.75 mm)打印耗材,并且直接打印制備出實驗室銅電解槽及導(dǎo)電復(fù)合材料基板。5、在硫酸體系電解液中進行導(dǎo)電復(fù)合材料基板電解精煉銅實驗,結(jié)果發(fā)現(xiàn)導(dǎo)電復(fù)合材料基板導(dǎo)電性能良好,XRD分析表明沉積物成分為立方晶系銅單質(zhì),其結(jié)構(gòu)致密且便于剝離。循環(huán)伏安分析表明,Cu2+在導(dǎo)電復(fù)合材料表面晶粒形核以及晶粒長大過程與純鈦基板相近。SEM分析發(fā)現(xiàn),如果在電解液中添加微量的明膠和硫脲,銅在導(dǎo)電復(fù)合材料基板表面的沉積更加平整。
[Abstract]:Electrolytic refining of copper is an effective means of copper purification. In the electrolytic copper refining equipment, the cathode substrate is mostly industrial pure titanium, which is expensive, and will be continuously worn out in the electrolysis process. At the same time, special equipment is also needed in the stripping process. In this paper, the conductive 3D printing materials were prepared by blending engineering plastic ABS (acrylonitrile-butadiene-styrene plastics) with multi-walled carbon nanotubes (MWNTs) by twin-screw, and the copper electrolysis cells and substrates were prepared conveniently by 3D printing technology. The electrodeposition process and electrolysis copper morphology of MWNTs / ABS conductive substrates were studied by using nano-conductive composite substrates instead of pure titanium. According to the fabrication of conductive 3D printing consumables, MWNTs / ABS composites and SBS toughened MWNTs / ABS composites were prepared successively. The mechanical properties of MWNTs / ABS composites were tested. Dynamic mechanical properties, Raman spectroscopy, fracture SEM, thermal stability test, melt flow rate test, obtained the following conclusion: when the content of MWNTs increases, the electrical conductivity and tensile strength of the composites are increased with the increase of MWNTs content. The hardness, storage modulus, loss modulus, glass transition temperature and the thermal stability of the composites were not significantly affected, but the toughness and melt flow rate decreased. The electrical conductivity of the composite increases with the increase of the number of twin-screw blending. The tensile strength and bending strength of the blended ABS decrease with the increase of the content of ABS high rubber powder, and the impact strength increases continuously. When ABS high rubber powder / San resin is 25:75, the properties of blended ABS are the closest to that of general grade ABS. The electrical conductivity, tensile strength, hardness, storage modulus, loss modulus and glass conversion temperature of MWNTs / ABS composites increase with the increase of MWNTs content, but the impact strength and melt flow rate decrease, and the composites become brittle. Moreover, the thermal stability of the composites decreased after adding more than 5% SBS. The toughness and thermal stability of the composites were improved to some extent, but the electrical conductivity, tensile strength, flexural strength and storage modulus of energy storage were improved to some extent. The loss modulus decreases the dispersion of MWNTs in ABS with the increase of adding amount. Under the optimized conditions, the conductive function (diameter 1.75 mm) which meets the requirements of FDM 3D printing is prepared. The lab copper electrolysis cell and the conductive composite substrate. 5 were prepared by direct printing. The copper refining experiment was carried out in the electrolyte of the sulfuric acid system by conducting the electrolysis of the conductive composite material substrate. The results showed that the conductive properties of conductive composites were good. XRD analysis showed that the sediment composition was cubic system copper simple material, its structure was compact and easy to peel off. The cyclic voltammetry analysis shows that the nucleation and grain growth process of Cu2 on the surface of conductive composite is similar to that of pure titanium substrate. SEM analysis shows that if microamounts of gelatin and thiourea are added to the electrolyte, The deposition of copper on the substrate of conductive composite is more smooth.
【學位授予單位】：桂林理工大學
【學位級別】：碩士
【學位授予年份】：2017
【分類號】：TF811;TB332

【參考文獻】

相關(guān)期刊論文 前10條

1 仲小敏;王娟;郭舟;;我國3D打印技術(shù)未來發(fā)展趨勢展望[J];產(chǎn)業(yè)與科技論壇;2016年22期

2 向友來;杜艾;謝志勇;葉君健;張志華;周斌;;3D打印技術(shù)應(yīng)用于加工微靶零件[J];強激光與粒子束;2016年12期

3 叢林;曾憲忠;劉翠云;鄭虹玲;陳翔;;淺析3D打印材料的研究進展[J];黑龍江科技信息;2016年29期

4 單忠德;楊立寧;戎文娟;劉豐;;熔融堆積3D打印成形金屬件層間結(jié)合研究[J];機械設(shè)計與制造;2016年08期

5 田小永;劉騰飛;楊春成;李滌塵;;高性能纖維增強樹脂基復(fù)合材料3D打印及其應(yīng)用探索[J];航空制造技術(shù);2016年15期

6 謝凝鈺;彭志華;郭萍;吳喜軍;胡林華;張亞楠;;碳納米管聚合物復(fù)合材料導(dǎo)電性能研究[J];洛陽理工學院學報(自然科學版);2016年02期

7 靳一帆;萬熠;劉新宇;王連雷;;基于FDM 3D打印技術(shù)在醫(yī)療臨床中的應(yīng)用[J];實驗室研究與探索;2016年06期

8 李自強;;銅電解不銹鋼陰極板校平機的設(shè)計[J];機械制造;2016年05期

9 陳碩平;易和平;羅志虹;諸葛祥群;羅鯤;;高分子3D打印材料和打印工藝[J];材料導(dǎo)報;2016年07期

10 黃衛(wèi)東;;材料3D打印技術(shù)的研究進展[J];新型工業(yè)化;2016年03期

，

本文編號：2025074