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Invention Publication
CN107501551A 一种聚酰亚胺树脂和一种透明聚酰亚胺薄膜及其制备方法 有权

一种聚酰亚胺树脂和一种透明聚酰亚胺薄膜及其制备方法
Abstract:
为了解决不能使用聚酰亚胺树脂熔融加工的方式制备透明聚酰亚胺薄膜，本发明提供一种聚酰亚胺树脂和一种透明聚酰亚胺薄膜及其制备方法。本发明提供的聚酰亚胺树脂和聚酰亚胺薄膜包括结构单元a、b、c和d，所述聚酰亚胺薄膜的合成单体包括二酐和二胺，所述二酐单体包括三苯二醚四甲酸二酐，4,4’-(六氟异丙烯)二酞酸酐；所述二胺单体包括2,2’-双(三氟甲基)-4,4’-二氨基苯基醚，4,4’-二氨基-2,2’-双三氟甲基联苯。本发明提供的聚酰亚胺薄膜通过聚酰亚胺树脂熔融挤出的方法制备，也可以通过常见的流延法制备，本发明提供的透明聚酰亚胺薄膜，具有透光率高、机械性能好、耐热性高、加工性好等特点。
Abstract(English):

The invention provides polyimide resin, a transparent polyimide film and a preparation method of the transparent polyimide film and aims to solve the problem that the transparent polyimide film cannot be prepared from the polyimide resin by melt processing. Each of the polyimide resin and the transparent polyimide film comprises structural units a, b, c and d, synthons of the polyimide film comprise dianhydride and diamine, the dianhydride monomers contain HQDPA (triphenyl diether tetracarboxylic dianhydride) and 6FDA (4,4'-(hexafluoroisopropylidene)diphthalic anhydride), and the diamine monomers contain 6FODA (2,2'-bis(trifluoromethyl)-4,4'-diaminophenylether) and TFDB (2,2'-bis(trifluoromethyl)-[1,1'-biphenyl]-4,4'-diamine). The polyimide film is prepared from the polyimide resin with a melt extrusion method and can also be prepared with a common tape casting method; the transparent polyimide film has the characteristics of high light transmittance, good mechanical properties, high heat resistance, good processability and the like.

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