With the continuous expansion of application range of polypropylene materials

polypropylene resin with low ash content plays an important role in the fields of electronics

electrical appliances

textiles and medical treatment. Among them

the development and application of polypropylene capacitor film improve greatly the quality and performance of electronics and capacitors

which promotes effectively the construction and development of power systems. The main characteristics of biaxially drawn polypropylene capacitor film and the main parameters (ash content

isotacticity

melt flow rate) affecting the performance of polypropylene resin for capacitor film are introduced. The production status of polypropylene resin for capacitor film abroad

the research progress of major domestic chemical enterprises in this field and the deashing process of manufacturing polypropylene resin are reviewed. The development direction of high purity polypropylene resin for capacitor film production is proposed

which is directly produced in the reactor by using ultra-high activity catalytic system without washing and deashing process.