Configuration of PMIA-pulp and Its Effect on Aramid Paper

In order to study the relation between structure,fiber morphology of PMIA-pulp and aramid paper properties,PMIA-pulp was classified.This research focused on the effect of structure and fiber morphology of PMIA-pulp on the property of aramid paper.Structure and fiber morphology of PMIA-pulp were characterized by its degree of crystallinity,molecular weight,average fiber length,specific surface area and beating degree,aramid paper properties were characterized by its density,tensile index and tear index.The results showed that specific surface area and beating degree of PMIA-pulp are the main factors influencing unhot-pressed aramid paper,however,molecular weight and crystallinity degree after hot press of PMIA-pulp are the main factors influencing the hot pressed aramid paper.PMIA-pulp with larger specific surface area and higher beating degree is suitable to make unhot-pressed aramid paper and PMIA-pulp with medium molecular weight is suitable to make hot pressed aramid paper.