Preparation Methods,Influence Factors and Application Progress of Expandable Microspheres
Expandable microspheres represent a prototypical core-shell structure characterized by a single wall and a single core,which are comprised a polymer shell and an alkane liquid core.Due to the outstanding foaming performances and controllable pore structures,expandable microspheres are widely used in the foaming agents and other fields.Nonetheless,the protracted preparation cycle,numerous influence factors,and the mutual constraints of factors render the preparations and researches of expandable microspheres.This review summarized five preparation methods of expandable microspheres,outlined the influence factors including particle size,expansion temperature and expansion ratio,then analyzed the means of performance regulations and categorized the application areas,particularly the application of thermal-mechanical transformation characteristics.Finally,the research directions and development prospects of expandable microspheres were prospected,aiming to offer the references for the ongoing researches of expandable microspheres.
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维普
