聚丙烯/黏土/碳黑導電奈米複合材料之製備與性質研究

A Study on the Preparation and Properties of the PP/Clay/Carbon Black Conductive Nanocomposites

賀錫耀(Hsi-Yao Ho)

指導教授 ： 林國賡

淡江大學/工學院/化學工程與材料工程學系碩士班/碩士(2007年)

https://doi.org/10.6846/TKU.2007.00412

摘要

本論文系將聚丙烯、黏土、碳黑利用熔融混煉法製備成PP/clay/cb之導電奈米複材。以表面電阻儀量測各複材的表面電阻係數；SEM觀察碳黑與黏土在高分子基材中的分散情形與複材的相形態；XRD確定黏土的剝、插層情形。
TGA測定各複合材料的熱裂解溫度(Td)；DSC量測複材的熔點(Tm)與結晶度的變化；DMA測定複材的固態機械性質；平板式流變儀測定複材的熔融態流變性質。結果發現PP/clay/cb複材中，經加工條件的確定，與各成份間的適當比例，可以少量的clay添加，使表面電阻大幅下降，且經由適當的相容劑的選擇與添加量，可提升複材的機械性質。並藉由各種測試的結果，探討其之間的相互關係以及對複材物性之影響。

關鍵字

聚丙烯 ； 黏土 ； 碳黑 ； 導電高分子 ； 熔融混煉 ； 黏土插層 ； 表面相形態 ； 流變性質

並列摘要

In this study, we aimed at blending polypropylene(PP)/clay and carbon black(cb) by melt mixing to manufacture conductive polymer nanocomposites. We used the surface resistance meter to measured surface resistivity；scanning electron microscopy(SEM) to investigate the morphology of the nanocomposites and the dispersion of clay and carbon black in the polymer matrix；XRD to analyze the exfoliation or intercalation of clay；plate-plate rheometer to measure the rheological properties .
Thermal degradation behavior and dynamics mechanical properties of nanocomposites were analyzed by thermal gravimetric analysis(TGA) and dynamics mechanical analysis(DMA), the degree of crystallization and melt temperature(Tm) of the blends were observed by differential scanning calorimetry(DSC). The results indicated in PP/clay/cb composites, we may sharply lower the surface resistivity by adding only 2phr clay under the terms of appropriate processing condition and formula. We can also improve the mechanical properties of nanocomposites by selection of compatibilizer and the amount of adding.
Then we’ll discuss and analyze all the results and find out the relationship between all the tests.

並列關鍵字

Polypropylene ； Clay ； Carbon Black ； Melt mixing ； Intercalation ； Morphology ； Rheology

參考文獻

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