聚氨基甲酸酯/散熱涼爽複合材料之合成與功能性質研究

A Study on the Synthesis and Functional Properties of Polyurethane / Inorganic Cooling Powder Composites

張禕駿(I-chun Chang)

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(2009年)

摘要

本研究是運用聚氨基甲酸酯（Polyurethane, PU）於合成法時加入次微米無機散熱涼爽之礦石粉體（CDS）以製備其PU/CDS散熱涼爽複合材料。在合成PU之過程中，先將不同含量的次微米無機散熱涼爽之礦石粉體（CDS）分別加入至二甲基乙醯胺(N,N-dimethyl acetamide, DMAc)混和後，再與PU混合均勻、乾燥處理後製成不同粉體含量的PU/ CDS複合材料；隨後探討散熱涼爽粉體含量對PU/ CDS複合材料相關性質與功能之影響。
本研究藉由ATR-FTIR對PU/CDS複合材料做分子之間的鍵節鑑定，發現添加散熱涼爽粉體（CDS）並未出現新的官能基特性峰或是造成偏移現象，代表本研究屬於物理混掺；經由GPC平均分子量分析，發現隨著散熱涼爽粉體添加量之增加，其平均分子量會有下降之趨勢；經進一步利用SEM來觀測散熱涼爽粉體在複合材料中之分散狀況。在熱性質分析方面，透過TGA探討其熱裂解溫度及殘餘量間之關係，以了解其加工性質；由DSC之測試，探討其玻璃轉移溫度(Tg)之變化。對PU/ CDS複合材料進行拉伸試驗，發現隨熱涼爽粉體添加量之增加，使複合材料由軟而韌之特性轉為硬而脆。由MONCON透濕測試儀測試，探討其透氣性之變化。最後利用ALAMBETA、瞬間涼感值測定儀、迅速導熱係數測定儀、熱電偶式溫差測試系統及遠紅外線熱影像測試系統以測試其功能性質，在本研究實驗範圍內，隨熱涼爽粉體添加量增加，其散熱涼爽之功能性質有提升之趨勢。

關鍵字

聚氨基甲酸酯 ； 散熱涼爽礦石粉體 ； TGA ； DSC ； ATR-FTIR ； GPC ； ALAMBETA

並列摘要

In this study, the submicron inorganic cooling powders (CDS) were added into N,N-dimethyl acetamide (DMAc) with different amounts in the course of PU synthesizes PU/CDS. PU/CDS composites were fabricated by the extracting procedure and the airing.
To evaluate the composite properties, PU/CDS composites were investigated by ATR-FTIR, which showed neither new groups were made nor phenomenon of displacement. The molecular weight of PU/CDS composites could be known from GPC, the molecular weight decreased with increasing the quantity of cooling powder filled. Also, the surface analysis of cooling composites was observed by SEM. The thermal properties of PU/CDS composites were prepared. The decomposition temperature of composites and its relationship to the weight loss was examined by TGA. In addition, the variation in glass transition temperature (Tg) was analyzed with DSC. Furthermore, the soft and tough of composites were turned into hard and brittle composites with increasing the quantity of cooling powder filled. The variation in permeability was analyzed with MOCON analysis. Finally, it was found from ALAMBETA analysis, Q-max analysis, quick thermal conductivity meter, thermocoupling temperature testing system and infrared thermograph testing system the coolness effect of the composite increased with the quantity of cooling powder filled.

並列關鍵字

PU ； CDS ； TGA ； DSC ； ATR-FTIR ； GPC ； ALAMBETA

參考文獻

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