PLA織物之染色研究

Study of PLA Fabrics Dyeing

賴慧珊(Huei-Shan Lai)

指導教授 ： 黃國賢

崑山科技大學/工程學院/綠色材料研究所/碩士(2010年)

https://doi.org/10.6828/KSU.2010.00043

摘要

本實驗旨在研究利用塑化劑於PLA織物（Polyactide Fabrics）染色時之添加，藉由相關之儀器如分光儀、耐候機、耐昇華試驗機等儀器分析檢測各項相關性質，探討塑化劑之添加對PLA織物染色之影響。經實驗結果，首先由在DSC之檢測知，加入塑化劑-TBC（Tributyl citrate）後，PLA纖維之玻璃轉移溫度、冷結晶溫度及熔點皆會隨TBC濃度之增高而下降。而隨著TBC濃度增高，PLA分子運動快，分子鏈堆砌形成結晶的行為明顯增加，較易形成完整的結晶，故在PLA之熔融峰中形成較多完整的結晶含量，因此PLA之ΔHm隨著TBC濃度增高而增高。其次添加TBC後能使PLA織物在低溫（80℃）染色下有深染之效果。染料與TBC於80℃、90℃、100℃下會產生相互作用。經得知C.I Disperse Red 82、C.I Disperse Orange 30皆會與TBC發生作用而使其λmax往短波長移動，產生藍移現象，因此使得織物在染色後之色相偏藍；而C.I Disperse Blue 79與TBC作用後其λmax往長波長移動，產生紅移現象，故使織物在染色後之色相偏紅。在耐水洗方面，水洗10次後織物仍保持良好的染色堅牢度，大致上皆能達到4-5級。而在耐日光堅牢度方面，三支染料中以C.I Disperse Orange 30最為優秀。至於耐昇華堅牢度則因PLA織物不耐高溫，超過130℃即開始熔融，而分散染料通常是在高溫150∼250℃才會昇華，故在130℃時耐昇華堅牢度幾乎都維持在5級，無太大變化。

關鍵字

PLA織物 ； 分散染料 ； 塑化劑

並列摘要

The purpose of this experiment is to study the addition of the plasticizer in the dyeing process of polylactide fabrics, and to use the related equipment such as optical emission spectrometer, weather meter and sublimation tester to analyze and test the associated natures to explore the impact on the dyeing of PLA fabrics because of the addition of plasticizer. From the results of the experiment, we first know that the testing of DSC shows the addition of plasticizer-TBC (Tributyl citrate) will cause the glass transition temperature of PLA fabrics, the cold crystallization temperature and melting point to decrease because of the increasing of TBC concentration. With the increasing of TBC concentration, PLA molecules move faster and the behavior of molecular chain piling up and forming crystallization becomes frequent, and it is easier to form complete crystallization. Therefore, there will be much more complete crystallization in the melting endotherms of PLA, which makes the ΔHm of PLA increase as TBC concentration increases. Besides, the addition of TBC deepens the dyeing condition of PLA fabrics under low temperature (80℃). The dyes and TBC at 80℃, 90℃ and 100℃ will interact with each other. It is known C.I Disperse Red 82 and C.I Disperse Orange 30, will interact with TBC and causes blue shift to λmax, which then makes the fabrics become bluish and greenish in cooler after dyeing. On the contrary, C.I Disperse Blue 79, after interacting with TBC, will cause red shift to λmax, which then makes the fabrics become reddish and bluish in color after dyeing. In the aspect of water repellency, the fabrics, after washing 10 times, still maintain good color fastness to washing that reaches about level 4-5. And in the aspect of color fastness to light, C.I Disperse Orange 30 is the most superior among the three dyes. As to the color fastness to sublimation, PLA fabrics unstability on high temperature and starts to melt when the temperature is higher than 130℃, and the disperse dyes start to sublime at high temperature (at 150℃∼250℃). Therefore, at 130℃, the color fastness to sublimation is nearly unchanged and stays at level 5.

並列關鍵字

Polyactide Fabrics ； Disperse Dyes ； plasticizer

參考文獻

9.特開平8-311781A(1996)

3.J. Lunt, Large-scale Production, Properties and Commercial Applications of Poly Lactic Acid Polymers, Polymer Degradation and Stability, Vol. 59, No.1-3, p.145-152, 1998.

12.N.Ljungberg, B.Wessle′n, The Effects of Plasticizers on the Dynamic Mechanical and Thermal Properties of Poly(Lactic Acid) , Journal Applied Polymer Science, Vol.1227, No.86, p.1227-1234, 2002.

13.Y.Yang , S.Huda , Comparison of Disperse Dye Exhaustion,Color Yield , and Colorfastness Between Polylactide and Poly(ethylene terephthalate) , Journal of Applied Polymer Science, Vol.90, p.3285 - 3290 , 2003.

14.D. Karst , Y.Yang ,Using the Solubility Parameter to Explain Disperse Dye Sorption on Polylactide, Journal of Applied Polymer Science , Vol.96 , p.416 - 422, 2004 .