高科技纤维与应用
高科技纖維與應用
고과기섬유여응용
HI-TECH FIBER & APPLICATION
2011年
4期
35-38
,共4页
原丝%断头%特性粘度%原因%分析
原絲%斷頭%特性粘度%原因%分析
원사%단두%특성점도%원인%분석
PAN precursor%end breaking%intrinsic viscosity%reason%analyzed
简介了PAN原丝的工艺流程及主要控制参数,并结合研发和生产实际,从原料、工艺和操作3个方面分析了影响PAN原丝产生断头的原因。研究表明：选用特性粘度1.85 Pa.s,残单≤0.1%的聚合液,严格控制凝固浴的温度和浓度,同时控制各牵伸工序温度及牵伸倍数与牵伸梯度,可明显降低PAN原丝的断头率。
簡介瞭PAN原絲的工藝流程及主要控製參數,併結閤研髮和生產實際,從原料、工藝和操作3箇方麵分析瞭影響PAN原絲產生斷頭的原因。研究錶明：選用特性粘度1.85 Pa.s,殘單≤0.1%的聚閤液,嚴格控製凝固浴的溫度和濃度,同時控製各牽伸工序溫度及牽伸倍數與牽伸梯度,可明顯降低PAN原絲的斷頭率。
간개료PAN원사적공예류정급주요공제삼수,병결합연발화생산실제,종원료、공예화조작3개방면분석료영향PAN원사산생단두적원인。연구표명：선용특성점도1.85 Pa.s,잔단≤0.1%적취합액,엄격공제응고욕적온도화농도,동시공제각견신공서온도급견신배수여견신제도,가명현강저PAN원사적단두솔。
The process of PAN precursor and the main parameters were introduced.Factor causing end breaking were analyzed during PAN precursor manufacturing from raw materials,process and operation.The aggregation in intrinsic viscosity 1.85,residual monomer≤0.1%,can significantly reduce the end breaking rate of PAN precursor by strict control of temperature,concentration of coagulation bath,while controlling the temperature,the draw ratio and drawing temperature gradient in drawing process.
