图7 霉菌试验后涂层表面形貌图 Fig. 7 The surface morphology photos of coating after mold test a: blank coating, mold test for 28 d; b: blank coating, mold test for 56 d; c: coating containing BIT, mold test for 28 d; d:coating containing BIT, mold test for 56 d; e: coating containing Mg 2 Al-BIT, mold test for 28 d; f: coating containing Mg 2 Al-BIT, mold test for 56 d |