精油之界面性質探討

精油是一種具揮發性、高濃度的芳香物質，利用各種化學或物理方法，從植物的根、莖、葉、種子或花朵中萃取出來的，不同的芳香精油會使人產生不同的情緒及身體反應，也因為當時人處於身心愉悅放鬆的狀態中，所有的不適自然降低。本研究以天然(EO)薰衣草、海茴香、麥桿菊和合成薰衣草四種精油，利用接觸角、表面張力、傅氏轉換紅外線光譜儀三種儀器測試，以不同濃度，來探討天然與合成精油之界面性質的差異。一般市售精油之表面張力數值約在40(dyne/cm)左右，而天然薰衣草精油，經實驗結果顯示，表面張力在濃度0.01%為22(dyne/cm)，有較佳表面活性及濕潤效果，接觸角方面，天然(EO)薰衣草在1%濃度62.2°比其他精油有較佳的濕潤效果兩者儀器測試結果均天然(EO)薰衣草適合添加於化妝品中。

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並列摘要

The volatile oil (Essential Oil) is one kind of volatility (Non-Volatile), the high potency (high Concentration) aromatic compound (aromatic materials), Using each chemistry or physics method, From plant in the root, the stem, the leaf, the seed or the flowers the extract (extraction) comes out , The different fragrant volatile oil can make one have the different mood and the somatic effect, Also at that time because the person was at in the condition which the body and mind joyfully relaxed, all ill natures reduce. Research by natural aspic (Lavender), sea anise (Sea Fennel), culm chrysanthemum (Helichrysum bracteatum) and synthesis aspic (Synthesis Lavender) four kind of volatile oil, Using Contact Angle, Surface tension and Infrared absorption meter and so on three kind of instruments tests, By the different density, discusses natural) and the synthesis contact surface of nature the volatile oil difference. Of surface tension value common market volatile oil approximately in 40 (dyne/cm) about, But the natural aspic volatile oil, demonstrated after the experimental result that, the surface tension in the density 0.01% is 22 (dyne/cm), having the better surface activity and the moist effect, in the aspect of the contact angle, the EO aspic 62.2° having in 1% density compared to other volatile oil to have better moist effect and two instruments tests result to suit the increase in the cosmetics.