Since its inception in 1946, NPE has unfolded under all manner of economic cycles—the good, the bad and the meh. 2018 has the potential to be a banner year for the economy as well as the show, but a possible trade war and the outcome of the NAFTA negotiations could derail that outlook.
Using fake science to vilify plastics has a storied past. Remember how melamine dishes were reported to release embalming fluid when washed with hot water? Literary lion Norman Mailer took it a step further, bemoaning plastic as being socially and morally toxic to the human race. Sheesh!
The added cost of gear pumps can be justified by savings of material because aim thickness can be lower. Another benefit is reducing the load on the extruder, which may include pushing the melt through a static mixer to improve appearance, properties and maybe production rate.