| 학회 |
한국고분자학회 |
| 학술대회 |
2009년 가을 (10/08 ~ 10/09, 광주과학기술원 오룡관) |
| 권호 |
34권 2호 |
| 발표분야 |
고분자 가공/복합재료 |
| 제목 |
Effects of processing conditions on the physical properties of nylon6,6/clay nanocomposites |
| 초록 |
Effects of processing conditions on the physical properties of nylon6,6 containing clay nanoparticles were investigated in terms of screw rotation speed and mixing time. Incorporation of clay nanoparticles(5 wt%) increased crystalline temperature of nylon6,6 (ca. 7 oC) and produced a sharper crystalline peak. The wide-angle X-ray diffraction scans of nylon6,6/clay nanocomposites showed not only reduction of intensity at 2θ value of 20.1o but also appearance of the new peak at 13o. The dynamic viscosity of nanocomposites got higher as screw speed increased under constant mixing time. Nylon6,6/clay nanocomposites prepared at 90 rpm showed notable shear thickening and abrupt increase of storage modulus in low frequency region. The shear-induced crystallization of the nanocomposites exhibited that the samples prepared at lower screw speed shortened the induction times for isothermal crystallization. Addition of clay nanoparticles increased tensile modulus and decreased the ductility. |
| 저자 |
서재식, 김병철
|
| 소속 |
한양대 |
| 키워드 |
nylon66; clay; nanocomposite; rheology
|
| E-Mail |
|
