Lesson 26　Adhesives

Adhesiveshavebeenatechnologicallyimportantapplicationofpolymersforthousandsofyears.Manyoftheearlynaturaladhesivesarestillused.Theseincludestarchandprotein-basedformulationssuchashydrolyzedcollagenfromanimalhides,hooves,andbonesandcaseinfrommilk.Asnewadhes ......（本文共 12395 字 , 1 张图）     [阅读本文]>>