Abstract: Spinning instability and electrets particles agglomeration reunion electrets of polylactic acid (PLA) meltblown nonwoven materials have been presented in the preparation process. In particular, it is shown spinning instability can greatly influence in the filtration efficiency and stability of charge storage of the PLA meltblown material. In this paper, PLA composites filled with various content electrets for meltblown materials were prepared, thermal properties of PLA composites were analyzed and the spinnability of PLA composites were researched using DSC method. The research results showed that the addition of a small amount of electrets particles improved the crystallization of the PLA composites. The spinnability of PLA composites characterization By melt crystallization peak, undercooling and the crystallization temperature interval results implied that pure PLA materials and PLA composites containing 5% electrets particles had good spinnability.

Key words: PLA, meltblown material, thermal property, spinnability