以碳素改質型黏土奈米混成酚醛環氧樹脂應用於具難燃機能之基板的探討與研究

Study on the Copper Clad Laminate with Flame Retardancy of Novolac Epoxy Resin/Carbon Derivative Modified Clay Nanocomposites

許瑞騰(Jui-Teng Hsu)

指導教授 ： 蔡宗燕

中原大學/理學院/化學研究所/碩士(2016年)

https://doi.org/10.6840/cycu201600877

摘要

本研究使用碳的同素異形體-奈米碳球、石墨烯做為改質劑，分別與天然黏土作為分散載體與補強材，利用黏土層間的結晶水與氫氧基受熱脫水，降低熱的傳導，材料的片狀結構阻隔熱傳與氧氣的提供，奈米碳球與石墨烯豐富的雙鍵在燃燒時產生自由基可以捕捉高分子熱裂解產生的自由基的特性，以達到阻燃的效果，再與酚醛環氧樹脂製備成奈米複合材料。
本研究之奈米碳球與石墨烯分別經過膨潤、改質等步驟，以X光繞射儀（XRD）(奈米碳球層間距由13.18 Å增加到18.32 Å；石墨烯層間距由13.18 Å擴展到18.09 Å；少層間距由13.18 Å增加到19.44 Å）來檢測改質劑與無機層狀材料層間離子進行離子交換後層間距增加來驗證，再將此改質型無機層材加入交聯前酚醛環氧樹脂之單體中，製備成銅箔基板（Copper Clad Laminate，CCL）。
由結果顯示，奈米碳球與石墨烯改質型複合材料，能有效降低銅箔基板的熱膨脹係數（Coefficient of Thermal Expansion，CTE），提升熱裂解溫度，且奈米複合材料經UL-94垂直燃燒測試其難燃性皆比純膠好，可以此開發具有耐燃特性且環保之材料，並應用於無鹵素銅箔基板達到難燃化的方法。

關鍵字

奈米碳球 ； 多層石墨烯 ； 少層石墨烯 ； UL-94 V-1

並列摘要

In the study, functionalized inorganic layered material (clay) based on modification system composed by carbon nanocapsules and graphene, were designed and fabricated in this study to synthesize novolac cured epoxy nanocomposites. Clays, as dispersed template, were modified by methyl pyridine functionalized graphene materials, such as multilayers and mono layer graphene intercalants. There are functionalized graphene materials to enhance the fire retardant of resulting nanocomposites.
The dispersed template of clay were modified by the different type of carbon derivative, such as carbon nanocapsules as one of intercalants. According to enhanced effects of fire retardant come from clays with barrier and carbon derivative with free radical capture. Clay were modified by organic compounds and carbon nanocapsules. The modified clays were characterized by X-ray diffraction (XRD) (d-spacings of carbon nanocapsules, multilayered graphene and fewer layered graphene modified clays increase from 13.18 Å to 18.32 Å, from 13.18 Å to 18.09 Å and from 13.18 Å to 19.44 Å, respectively.). These results confirm the inclusion of modified agent into clay layers. The dispersion morphology of clays in the novolac cured epoxy resin were identified by TEM.
As the result, it has been observed that nanocomposites not only decrease the coefficient of thermal expansion (CTE) but also increased the thermal decomposition temperature. In addition, the vertical burning test of UL-94 are better than the pure epoxy. This material may be applied for halogen-free copper clad laminates.

並列關鍵字

carbon derivative ； multilayered graphene ； fewer layered graphene ； UL-94 V-1

參考文獻

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