Research Progress of the Blowing Agent Applications in Polypropylene
This article reviewed the applications of physical foaming agents(PBAs),chemical foaming agents(CBAs),and other types of foaming agents in polypropylene(PP),briefly analyzed the action mechanisms,advantages and disadvantages of PBAs and CBAs,and compared their respective applicable scenarios.There are many kinds of blowing agents with wide applications and environmental safety character.The blowing agents could reduce the material density,reducing the material and product qualities and costs.Based on recent research findings,this study focused on exploring and summarizing the application progresses of PBAs and CBAs in PP,and summarized the advantages and disadvantages of foaming agents in PP applications.
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