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聚苯胺/维尼纶复合导电纤维的研制 总被引:3,自引:0,他引:3
罗洁 《四川联合大学学报》1999,3(3):6-10
本文以维尼纶纤维为基材,采用化学氧化原位聚全方法制备了聚苯胺/维尼纶导电复合纤维,并研究了制备条件如;苯胺单体浓度、介质酸浓度、氧化剂浓度、反应温度和反应时间对导电复合纤维导电性能的影响。结果表明,该导电复合纤维具有良好的导电性及物理机械性能,并在空气中有良好的稳定性,其质量比电阻在10^2-10^5Ω·g·cm^-2范围内,另外采用显微摄影法证明了该导电复合纤维是皮芯层结构。 相似文献
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聚苯胺/维尼纶导电复合纤维的制备与性能 总被引:1,自引:0,他引:1
采用简便的化学氧化现场吸附聚合法制得了聚苯胺/维尼纶导电复合纤维,并研究了制备条件对其性能的影响。该导电复合纤维具有较好的导电性及力学性能,并在空气中很高的稳定性,其电导率可达10^-2S/cm数量级。采用扫描电镜(SEM)对该导电复合纤维的微观结构进行了观察。 相似文献
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聚苯胺/涤纶导电复合纤维的制备 总被引:5,自引:0,他引:5
以涤纶(PET)为基材.采用就地氧化聚合吸附的方法制得PAN/PET导电复合纤维。结果表明,采用一定浓度的钒酸钠等含钒弱氧化剂,PET纤维预吸附苯胺单体等方法,可保证PET这类结构致密、疏水性强的纤维对聚苯胺的有效吸附。制得的导电纤维具有较好的导电性、物理力学性能及环境稳定性,其质量比电阻低于10Ωg/cm2。 相似文献
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纳米镍/聚苯胺复合粒子的制备与表征 总被引:12,自引:0,他引:12
采用对氨基苯甲酸(ABA)处理纳米镍粉,然后在ABA-nano-Ni(ABA处理的纳米镍粉)的存在下苯胺(An)原位化学氧化聚合,形成纳米镍/聚苯胺(PANi/nano-Ni)复合粒子.IR和TGA分析表明ABA通过化学键与纳米镍粒子结合,颗粒表面引入了-NH2基团;采用IR、UV、DSC、TEM等分析手段对复合粒子PANi/nano-Ni进行了分析表征.结果表明苯胺在ABA-nano-Ni表面进行聚合,纳米镍粉表面的NH2基团参与了聚合反应,形成了具有核壳结构的复合粒子. 相似文献
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本文研究采用改性的碳纳米管为模板,采用氧化聚合法合成了纳米管状聚苯胺。利用FTIR、UV/Vis Spectra、TEM等分析表明:合成的聚苯胺分子具有良好的纳米管状结构。利用合成的聚苯胺与有机粘合剂等材料进行复配,形成稳定的整理剂,利用Mini-TAB对各整理工艺进行优化分析,使整理后的织物的导电性大大提高。该整理技术将对开发导电、抗静电纺织服装产品具有实际应用意义。 相似文献
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聚苯胺/聚丙烯复合导电纤维的结构与性能 总被引:4,自引:0,他引:4
采用现场吸附聚合法(原位聚合法)制备了聚苯胺/聚丙烯复合导电纤维,讨论了掺杂酸浓度、氧化剂浓度、苯胺单体含量对纤维导电性能的影响。通过扫描电镜(SEM)、红外光谱分析(FT-IR)、纤维物理力学性能测定等,对导电纤维的结构与性能进行了研究。实验表明采用此法制得的复合纤维导电性能优良,电导率达到10-1数量级。 相似文献
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以十二烷基苯磺酸(DBSA)为表面活性剂和掺杂剂,通过乳液聚合的方法制备聚苯胺/聚乙烯醇(PANI/PVA)复合乳液用于静电纺丝,制备出超细复合纤维毡,通过SEM、XRD和力学测试表征PANI/PVA超细复合纤维毡的外观形貌、纤维直径、结晶度及其力学性能。结果表明:有机磺酸掺杂后的聚苯胺导电性能达到1.28S/cm;1459cm-1处醌环和苯环上的C=C伸缩振荡峰和1697cm-1处醌环上C=N伸缩振荡峰的聚苯胺特征峰明显;YG006型电子单纤维强力机的测试发现,PANI/PVA纤维集合体的面密度对其力学性能的影响显著;当纺丝工艺条件设定为接收距离18cm、电压24kV时,PANI/PVA纤维直径达到600nm,直径分布小于150nm,PANI微颗粒分散于PVA纤维基体表面。 相似文献
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导电聚苯胺纤维的制备与性能表征 总被引:1,自引:0,他引:1
以一种新型的双子表面活性剂6,6′-(丁基-1,4-二基双氧)双(3-壬基苯磺酸)(9BA-4-9BA)作为掺杂剂制备聚苯胺导电纤维,并与用2-丙烯酰胺基-2-甲基丙磺酸(AMPSA)掺杂的聚苯胺纤维的性能进行比较,探讨了聚苯胺分子量、纺丝原液的浓度、掺杂剂种类、凝固浴、牵伸工艺对纤维形貌和导电性能的影响。研究表明,质量分数为14%的AMPSA掺杂聚苯胺的二氯乙酸溶液在丙酮凝固浴中得到的初生纤维的电导率达到1.77S/cm,而质量分数为14%9BA-4-9BA掺杂聚苯胺的二氯乙酸溶液在9BA-4-9BA/丙酮凝固浴中得到的初生纤维及1倍牵伸纤维的表面形貌光滑规整,电导率分别为0.39 S/cm和1.14 S/cm。 相似文献
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Polypyrrole/multiwalled carbon nanotube (MWNT) composite films were electrochemically deposited in the presence of an ionic
surfactant, sodium dodecyl sulfate (SDS), acting as both supporting electrolyte and dispersant. The effects of the surfactant
and the MWNT concentrations on the structure of the resulting composite films were investigated. The electrochemical behavior
of the resulting polypyrrole/MWNT composite film was investigated as well by cyclic voltammogram. The effect of the additional
alternating electric field applied during the constant direct potential electrochemical deposition on the morphology and electrochemical
behavior of the resulting composite film was also investigated in this study. 相似文献
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AbstractHighly conductive, transparent and flexible planar electrodes were fabricated using interwoven silver nanowires and single-walled carbon nanotubes (AgNW:SWCNT) in a PEDOT:PSS matrix via an epoxy transfer method from a silicon template. The planar electrodes achieved a sheet resistance of 6.6 ± 0.0 Ω/□ and an average transmission of 86% between 400 and 800 nm. A high figure of merit of 367 Ω?1 is reported for the electrodes, which is much higher than that measured for indium tin oxide and reported for other AgNW composites. The AgNW:SWCNT:PEDOT:PSS electrode was used to fabricate low temperature (annealing free) devices demonstrating their potential to function with a range of organic semiconducting polymer:fullerene bulk heterojunction blend systems. 相似文献
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Andrew J Stapleton Soniya D Yambem Ashley H Johns Rakesh A Afre Amanda V Ellis Joe G Shapter Gunther G Andersson Jamie S Quinton Paul L Burn Paul Meredith David A Lewis 《Science and Technology of Advanced Materials》2015,16(2)
Highly conductive, transparent and flexible planar electrodes were fabricated using interwoven silver nanowires and single-walled carbon nanotubes (AgNW:SWCNT) in a PEDOT:PSS matrix via an epoxy transfer method from a silicon template. The planar electrodes achieved a sheet resistance of 6.6 ± 0.0 Ω/□ and an average transmission of 86% between 400 and 800 nm. A high figure of merit of 367 Ω−1 is reported for the electrodes, which is much higher than that measured for indium tin oxide and reported for other AgNW composites. The AgNW:SWCNT:PEDOT:PSS electrode was used to fabricate low temperature (annealing free) devices demonstrating their potential to function with a range of organic semiconducting polymer:fullerene bulk heterojunction blend systems. 相似文献
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Composites of carbon nanotubes with attached carboxylic groups (c-MWCNTs) and water-soluble externally doped sulfonated polyaniline (ED-SPANI) were prepared by solution mixing of c-MWCNT and ED-SPANI aqueous colloids. Fourier-transform infrared spectroscopy, Raman spectroscopy, ultraviolet–visible (UV–Vis) absorption spectroscopy, field-emission scanning and high-resolution transmission electron microscopy were used to characterize their structure and morphology. Raman and UV–Vis spectra revealed the presence of electrostatic interaction between the C–N+ species of the ED-SPANI and the COO− species of the c-MWCNTs. The addition of c-MWCNT to ED-SPANI can improve its thermal stability. The conductivity of 3 wt.% ED-SPANI/c-MWCNT composites at room temperature is sixteen times higher than that of ED-SPANI. These results demonstrate that the addition of a small number of c-MWCNTs to an ED-SPANI matrix can form a conducting network in well dispersed composites, thus increasing their electrical conductivity. 相似文献
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The preparation and characterization results of a new nanocomposite, polyaniline (PANI) grafted multiwalled carbon nanotube (MWNT) loaded Nafion-silica, (designated as Nafion-silica/MWNT-g-PANI), are reported in this paper. The preparation involves the formation of a silica network in a Nafion membrane and the subsequent loading of polyaniline-grafted multiwalled carbon nanotubes (MWNT-g-PANI) onto the Nafion-silica nanocomposite. The new nanocomposite, Nafion-silica/ MWNT-g-PANI, was characterized as to its morphology, structure and properties. The conductivity and methanol permeability of the nanocomposite membranes were evaluated. 相似文献
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AbstractThe synthesis characterization and conductivities of polyaniline/expanded vermiculite intercalated nanocomposite are presented in this paper. The conductive emeraldine salt form of polyaniline is inserted into the interlayer of expanded vermiculite to produce the nanocomposite with high conductivity. The structures and properties are characterized by transmission electron microscopy x-ray diffraction spectroscopy fourier transform infrared spectroscopy thermogravimetry analysis and by the measurements of conductivity and stability. The results show that an intercalated nanocomposite with high conductivity and stability is obtained. The synthesis conditions are optimized to obtain the highest conductivity which is 6.80 S cm?1. 相似文献
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碳纳米管(CNT)优异的力学性能使其成为复合材料优选的增强体。CNT/聚合物复合材料的力学性能主要受其界面结合性能的影响。综述了CNT/聚合物复合材料界面结合性能的研究方法和研究现状。对CNT/聚合物复合材料界面结合性能的研究,实验上采用微观表征技术、拉曼光谱分析技术和纳米力学拔出法,分子模拟方法则是通过对CNT施加位移或外力模拟CNT从聚合物基体中的抽拔过程。概述了聚合物的类型、晶态结构以及CNT的手性、功能化处理等因素对CNT/聚合物复合材料界面结合性能的影响,并展望了CNT/聚合物复合材料界面结合性能未来研究的重点方向。 相似文献