CAJ | 학술논문

采用广角X-射线衍射（WAXD）、双折射等方法分析了不同生产工艺所制备的腈纶的超分子结构,通过动态力学分析（DMA）测定了纤维的玻璃化转变温度。结合纤维的力学性能分析发现,通过降低总拉伸倍数的生产工艺,可以有效降低纤维的结晶度、取向度,降低纤维的断裂强度,并进一步通过增加再拉伸（干热拉伸）的工序降低了纤维的断裂伸长率,以此工艺可以制备强度和伸长乘积较低的腈纶,满足抗起球腈纶的力学性能要求。
채용엄각X-사선연사（WAXD）、쌍절사등방법분석료불동생산공예소제비적정륜적초분자결구,통과동태역학분석（DMA）측정료섬유적파리화전변온도。결합섬유적역학성능분석발현,통과강저총랍신배수적생산공예,가이유효강저섬유적결정도、취향도,강저섬유적단렬강도,병진일보통과증가재랍신（간열랍신）적공서강저료섬유적단렬신장솔,이차공예가이제비강도화신장승적교저적정륜,만족항기구정륜적역학성능요구。
In this paper,Wide Angle X-ray Diffraction（WAXD）,Birefringence Test and other methods were employed to characterize the supramolecular structure of acrylic fiber.Dynamic Mechanical Analysis was used to measure the glass-transition temperature（T_g）.Analysis with the mechanical properties of the fiber,we find out that reduce the total draw ratio of fiber during the production process can bring the crystallinity,orientation down and also the breaking strength.The addition of re-drawn process can reduce the breaking elongation.Using this technology we can prepare the fiber of lower product of strength and elongation,which can meet the mechanical properties requirements of anti-pilling acrylic fiber.