以原位聚合法製備Nylon6/氧化石墨@奈米銀複合材料之功能性研究

A Study of Functional Properties of Nylon6 / Graphite Oxide @ nano-Ag Composite Prepared by In-Situ Polymerization

陳佳龍(Chia-Lung Chen)

指導教授 ： 鄧道興

國立臺北科技大學/工程學院/有機高分子研究所/碩士(2014年)

摘要

本研究探討以原位聚合法合成Nylon6過程中添加具有抗菌功能之粉體氧化石墨@奈米銀(Graphite Oxide @ nano-Ag)與氧化石墨(GO)。
複合粉體(Graphite Oxide @ nano-Ag)實驗分為三個步驟，第一步先利用濕式球磨法製得小粒徑之鱗片石墨；第二步進行鱗片石墨之表面改質，利用Hummer method合成出氧化石墨；第三步將利用氧化還原法使奈米銀吸附於氧化石墨上，本實驗室使用硝酸銀(AgNO3)、葡萄糖(C6H12O6)、聚乙烯吡咯烷酮(PVP)及(3-氨基丙基)三乙氧基矽烷 (3-APTES) 分別做為奈米銀之前驅鹽、還原劑、保護劑及偶聯劑。將製備好的氧化石墨@奈米銀與氧化石墨之複合粉體當作功能添加材依0.1、0.5、1、2wt%與己內醯胺(CPL)進行合成Nylon6複合材料。
Nylon6/氧化石墨@奈米銀複合材料的化學結構利用FT-IR進行測試，可由其發現，既沒有生成新的官能基團也沒有造成化學位移之現象。利用SEM可以觀察其表面型態，得知複合粉體的分散性。EDS能觀察到分布在表面上之奈米銀之含量多寡。利用TGA及DSC測量Nylon6/氧化石墨@奈米銀之熱性質。機械性質則利用拉伸試驗去分析其平均應變及最大拉伸應力。最後，對複合材料進行抗菌AATCC-147測試，得知複合材料抗菌性質。

關鍵字

Nylon6 ； 氧化石墨 ； 原位聚合法 ； 奈米銀

並列摘要

In the study, graphite oxide (GO) and graphite oxide @ nano-Ag (GO@Ag), were added during the process of Nylon6 by in-situ polymerization to prepare composite materials with anti-bacteria function.
The composite powder (graphite oxide @ nano-Ag) is divide into three stages. The first stage, wet grinding was applied to obtain small-size flake graphite powders; The second stage, surface modification of flake graphite. Graphite oxide (GO) was synthesized by Hummer method; The third, production of nano-Ag onto graphite oxide by oxidation-reduction method. Silver nitrate (AgNO3), glucose (C6H12O6), polyvinylpyrrolidone (PVP), (3-Aminopropyl)triethoxysilane (3-ATPES) are used as a precursor salt, reducing agent, protective agent and coupling agent, respectively. Finally, GO@Ag and GO powders as the functional additive with 0.1, 0.5, 1, 2wt% were added with caprolactam (CPL) during the synthesis of Nylon6 composite materials.
The chemical structures of Nylon6/graphite oxide @ nano-Ag composite materials were investigated by FT-IR, it was showed that neither new group was made nor phenomenon of displacement. The surface analysis was observed by SEM, it was showed dispersibility of powder particles. The results of EDS showed the nano-Ag content distributed on the surface. DSC and TGA were used to measure the thermal properties of Nylon6/graphite oxide @ nano-Ag composite materials. Average strain and maximum tensile stress were evaluated from tensile stress for analyzing the mechanical properties. Finally, the antibacterial properties of the composite were tested AATCC-147 test method.

並列關鍵字

Nylon6 ； Graphite Oxide(GO) ； In-Situ polymerization ； nano-Ag

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