以化學接枝改質聚丙烯纖維對染色性及物性影響之研究

Studies on the Dyeability and Physical Properties of Modified Polypropylene Fibers Grafted with Methyl Methacrylate

王權泉(Chyuan-Chyuan Wang) ； 李宗星(Tsung-Hsing Lee) ； 陳博洋(Bo-Yong Chen)

《華岡工程學報》 16期 (2002/06) Pp. 237-257

https://doi.org/10.29987/CCUHKJE.200206.0013

摘要

本研究主要係以過氧化二苯甲醯爲化學起始劑，甲基丙烯酸甲酯爲單體，與聚丙烯纖維行接枝共聚合反應，實驗中主要改變起始劑濃度、單體濃度、接枝溫度及接枝時間等條件進行加工，最後再以鹽基性染料進行染色。以探討聚丙烯纖維經不同接枝條件處理後之接枝率、物性（強力、回潮率）、染色性（K/S、染色牢度、染著量）、SEM表觀分析、FTIR定陸分析及TGA熱裂解分析。由實驗結果得知，聚丙烯纖維經不同接枝條件處理後，以起始劑濃度爲6.19×10^(-3)M、單體濃度3×10^(-1)M及接枝溫度80℃時可得較高的接枝率，且接枝率隨反應時間的增加而提升。在物性方面，經接枝後纖維回潮率及染色性皆有提升，但強力呈輕微下降，其中以低接枝率時之效果較顯著。另纖維經接枝後其熱穩定性呈輕微下降現象。

關鍵字

聚丙烯纖維 ； 甲基丙烯酸甲酯 ； 接枝 ； 染著量 ； 染色性

並列摘要

In this study, graft polymerization of methyl methacrylate to polypropylene fibers using benzoyl peroxide as a chemical initiator have been investigated. The effect of initiator and monomer concentrations, reaction time, and temperature on the dyeability and physical properties of polypropylene were studied. Grafting yield was increased with increasing initiator concentration up to 6.19×l0^(-3)M and then decreased, the same result for methyl methacrylate grafting on polypropylene fiber that increased with an increase in the methyl methacrylate concentration until the concentration reaches 3×l0^(-1)M. The grafting temperature have effect on grafting yield, when temperature is higher or lower will be as a result of lower grafting yield, the optimal temperature for grafting is about 80℃. Moreover, the moisture regain and K/S all obviously increase with grafting yield, but the strength and degradation temperature of grafted fiber were decreased. Scanning electron microscopy (SEM) revealed that the graft copolymer on surface of polypropylene fiber increased with an increasing grafting yield.

並列關鍵字

polypropylene ； methyl methacrylic acid ； graft ； dye uptake ； dyeability