CAJ | 학술논문

采用组装式叶片挤出机在线观察了聚合物固体形变，考察了物料参数、颗粒大小和工艺参数对聚合物固体形变的影响。结果表明：固体颗粒会在叶片塑化输运单元的强制挤压作用下产生形变；高模量的聚合物固体经叶片塑化输运单元作用后产生的塑性形变大；大颗粒料经叶片塑化输运单元挤压作用后变成薄片，但小颗粒料则经历大的形变后粘连；聚合物固体颗粒的形变量随着温度升高减小，随着转速的增加增大。
채용조장식협편제출궤재선관찰료취합물고체형변，고찰료물료삼수、과립대소화공예삼수대취합물고체형변적영향。결과표명：고체과립회재협편소화수운단원적강제제압작용하산생형변；고모량적취합물고체경협편소화수운단원작용후산생적소성형변대；대과립료경협편소화수운단원제압작용후변성박편，단소과립료칙경력대적형변후점련；취합물고체과립적형변량수착온도승고감소，수착전속적증가증대。
The solid polymer deformation was observed on-line by using an assembled vane extruder , and then the effects of material properties , pellet size and process parameters on the deformation were investigated .The results show that ( 1 ) polymer pellets are deformed under the compaction of VPCU; ( 2 ) the solid polymer of a higher modulus experiences a larger plastic deformation;(3) big polymer pellets are turned into small slices after extru-sion by VPCU is done , while small pellets experience a big deformation and then form bonded structure;and (4) the solid polymer deformation decreases with the rise of temperature as well as with the decrease of rotor speeds .