One of the hardest plastics to dispose of has been turned into engine lubricant

A team at Virginia Tech, together with colleagues from Texas A&M and Caltech, proposed a different approach. PVC is placed in a solvent with aluminum chloride and alpha-olefins, heated to about 70 °C, and kept for around three hours. The output is a thick oil that is chemically classified as polyalphaolefins. These are exactly the substances found in modern engine oils—from lawnmowers to aircraft engines.

The first attempts yielded a soft, sticky mass. The result became valuable when the researchers learned how to properly break long polymer chains. Tests and computer calculations confirmed that the resulting material functions as a lubricant. In parallel, the team built an economic model for potential industrial production.

For now, this is a laboratory protocol. The process needs to be made cleaner and cheaper at large scale. But the idea looks strong: instead of burning or burying PVC, it can be turned into a product the market already knows how to buy. If the method withstands scaling, one of the “heaviest” plastics will get a rare chance at a second life with high returns.

Sources:

1. Virginia Tech. "Scientists turn one of the hardest plastics to recycle into high-performance engine lubricant." ScienceDaily (29 August 2026).
2. Nuwayo E.M. et al. "Upcycling of polyvinyl chloride into polyalphaolefin lubricants." Nature (2026). DOI: 10.1038/s41586-026-10867-z.

Photo by Virginia Tech.