Joke Collection Website - Bulletin headlines - Which plastic bottle made of pet, pe, pp, or opp is more suitable for holding cosmetics?

Which plastic bottle made of pet, pe, pp, or opp is more suitable for holding cosmetics?

The supplier of cosmetic bottle materials reminds you that PCTG is the best material for cosmetic bottles. PP has good chemical stability. In addition to being corroded by concentrated sulfuric acid and concentrated nitric acid, it is also resistant to various other chemical reagents. All are relatively stable; but low molecular weight aliphatic hydrocarbons, aromatic hydrocarbons and chlorinated hydrocarbons can soften and swell polypropylene, and its chemical stability increases with the increase in crystallinity pp Secondly