Lesson 36　Fiber Spinning of Polymer

Thefirsteffortsofmanufacturingartificialfiberswereconnectedwiththeattemptstoutilizenaturalpolymers,primarilycelluloseandcasein,asrawmaterials.Althoughsyntheticpolymerswerealreadyknownatthattime,theywereconsideredmerelyascuriosawithoututilitarianvalue.Macr ......（本文共 9916 字 , 1 張圖）     [閱讀本文] >>