[問題] pu膠的反應過程
PU膠產品本身是流體，因為含有有機溶劑
所以在貼合過程，必須經過烘箱，將溶劑揮發
但此始pu膠仍不具黏性，必須還要經過高溫才能貼合
是不是因為pu膠必須到達某個溫度以上，如130度C
分子才會活化，而變成膠狀具有黏性，
之後溫度降低恢復固態因此將物品接著
那是否會因為再一次高溫而使得原本貼合的物品脫落?
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09/19 21:24, , 1F
09/19 21:24, 1F