Pressure Induced Crystallization of Polyamide-6 from the Melt
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摘要: 用自制高压装置，对聚酰胺-6（PA6）在常压至1.2 GPa压力下熔体的结晶行为进行了研究。通过差示扫描量热（DSC）、宽角x射线衍射（WAXD）以及扫描电子显微镜（SEM）分析发现，在特定高压条件下，生成了含伸直链晶体、结构规整的PA6材料。Abstract: A study has been made on the crystallization of polyamide-6 from the melt under high pressure. The morphology and structure has been investigated by means of differential scanning calorimetry, wide angle X-ray diffraction and scanning electron microscopy. The experimental facts show that during the crystallization of polyamide-6 under high pressure, the size of the crystal as well as the crystalline order have increased considerably, and extended chain crystal has been grown.
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Key words:
- polyamide /
- high pressure /
- extended chain crystal
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Wunderlich B. Differential Thermal Analysis of Polyethylene under High Pressure. J Polym Sci. Part A2, 1969, 7: 377. 傅强, 黄锐, 黄海. 液晶髙分子对聚乙烯伸展链晶体的诱导作用. 中国科学(A辑), 1994, 24(11): 1218-1224. Gogolewski A, Pennings A T. Pressure-Induced Crystallization of Nylon-6 from the Melt. Polymer, 1975, 16: 673. Gogolewski A, Pennings A T. The Morphology and Structure of Pressure-Crystallized Nylon-6. Polymer, 1977, 18: 647. 陈复生, 等. 精密分析仪器及应用(第九章). 成都: 四川科学技术出版社, 1988. -
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