| 학회 | 한국고분자학회 |
| 학술대회 | 2005년 가을 (10/13 ~ 10/14, 제주 ICC) |
| 권호 | 30권 2호 |
| 발표분야 | 복합재료 |
| 제목 | The Effect of Compatibility between PET and Organosilicates on the Structure and Properties of Poly(Ethylene Terephthalate) (PET) Nanocomposites |
| 초록 | Since the Toyota research group developed the nylon-6/clay nanocomposite, polymer/clay nanocomposites have been widely used for developing new polymeric composite materials that may provide many excellent physical properties. This substantial attention on polymer/clay nanocomposites is attributed to the fact that they show significant improvement in moduli, strength, thermal resistance, gas barrier property, and fire retardance as compared to virgin polymers or conventional microcomposite counterparts containing an equivalent volume fraction of inorganic filler. Poly(ethylene terephthalate) (PET) has been used for fibers, bottles, films, and engineering plastics for many years due to its low cost and high performance. This wide range of applications of PET can be even more extended by incorporation of clay into PET matrix, because well-dispersed silicate layers may enhance various physical properties of PET. For this reason, many researchers have attempted to disperse and/or exfoliate silicate layers in PET matrix via melt intercalation considered as commercially the most viable method. In our previous study, it was revealed that one key parameter yielding an exfoliated PET/clay nanocomposite using the melt intercalation method was to improve the thermal stability of organosilicate. In this study, we investigate the effect of functional groups of organosilicates on the structure and physical properties of the resultant PET nanocomposites. For this purpose, two kinds of new organic modifiers are synthesized: one has a hydroxyl group as a functional group compatible with PET and the other does not. Then, PET is melt-mixed with these new organosilicates compatible with PET or incompatible with PET to prepare PET nanocomposites. The morphological structure and physical properties of the resultant PET nanocomposites are investigated. Fig. 1. XRD patterns for the Na-MMT and organoclays. |
| 저자 | 김기홍, 조원호, 허준 |
| 소속 | 서울대 |
| 키워드 | PET; clay; nanocomposites |
