更多polypropylene例句

1. Because they are made of polypropylene, most paints will chip off.
2. To boost viability, Coates and colleagues created a highly potent compatibilizer for polyethylene and polypropylene.
3. They suggest wearing a cloth mask with two tightly woven layers and a filter made out of a type of plastic called polypropylene in between.
4. It also comes with three disposable filters made from non-woven polypropylene—the same stuff that’s in some reusable bags—that serve as a third layer of protection.
5. Existing worldwide supplies of the melt-blown polypropylene used in the most coveted PPE item in hospitals—the N95 respirators capable of filtering out the virus—are spoken for through at least the first few months of 2021.