... 1. The corrosion resistance: nylon has good chemical stability, is not easy to mould cavities, alkali sex is good, in general ... sex is good, in general condition, not afraid of sweat, sea water, soap, alkali, etc., but not resistant to strong acid, soluble in ... hygroscopicity general, than natural fiber and synthetic fiber are poor, but in synthetic fibre, in addition to vinylon outside, its moisture ...