A call to change recycling standards as 3

Phys.OrgA call to change recycling standards as 3-D printing expandsPhys.Org"We want to know about polymers the same way a chemist would," Pearce says, admitting that the seven codes in the US recycling system fall short. In comparison, China has 140 codes for different polymers. "Currently, the most common 3-D printed ...