Metallurgical Failures in the Mining Industry

The History of Tomorrow's Materials: Protein‐Based Biopolymers

“…By 1932 the company had planted 8000 acres of soybeans, an acreage that would increase to 12,000 by 1936. 14,15 Ford developed a process to prepare molded plastics using soybean meal, which contains 48% protein, hardened with formaldehyde. These soyformaldehyde parts absorbed more than 20% moisture by weight, causing severe warping and cracking.…”

“…These ther-moset phenolic-soy-formaldehyde plastic parts were filled with 30% wood flour; they were cheaper to produce than straight phenolic resin parts, weighed less, and did not require costly surfacing or finishing. 15 In 1936, one million Fords each had 15 lbs of soy-plastic parts-in gearshift knobs, window frames, electrical switches, horn buttons, and distributor caps-using over 3 million pounds of oil-free soybean meal. 15 This was in addition to 5 pounds per vehicle of soybean oil used in foundry sand cores and enamel.…”

“…15 In 1936, one million Fords each had 15 lbs of soy-plastic parts-in gearshift knobs, window frames, electrical switches, horn buttons, and distributor caps-using over 3 million pounds of oil-free soybean meal. 15 This was in addition to 5 pounds per vehicle of soybean oil used in foundry sand cores and enamel.…”