Buildings
Structure, lining, insulation or finish depending on family.
尼龙 earns its keep in systems: a beam, a batt, a fibre blend, a coated steel — rarely a lone coupon.
Products below are cultural landmarks as much as SKUs.
行业
Transport
Mass, fire and fatigue rewrite the grade list.
Energy
Heat, voltage and hydrogen compatibility.
Consumer
The volume that pays for the mill.
Medical / food
When allowed — extractables and allergies matter.
Defence / safety
Ballistics, FR clothing, fire stops.
产品
Wallace Carothers
1935
尼龙 stockings
1939
Parachute
WWII
PA6 fishing net
20th c.–
Climbing rope kernmantle
1960s–
Airbag cushion
1990s–
Tyre cord
1950s–
Toothbrush bristle
1938
配对
polyester
The cheaper filament that took shirts.
silk
The protein filament nylon was sold to replace.
aramid
Aromatic polyamide that does not melt the same way.
rubber
Tyres need both cord and elastomer.
If the pairing is wrong, the material will be blamed for a system fault.