INSULATING SHEET

The present invention is related to an insulating sheet which includes: a sheet base material comprising aramid flocks having an average fibre width of 10-30 [mu]m and aramid fibrids having an averagefibre width of 5-40 [mu]m; fine binder fibres which are present on at least the surface of the sheet base material, and which have an average fibre width of less than 5 [mu]m; and at least one kind of filler which is present on at least the surface of the sheet base material. The insulating sheet is capable of inhibiting oxidation degradation even when in contact with a metal under high temperature conditions, and exhibits excellent electrical insulation properties and excellent strength. 本发明涉及一种绝缘片，其中，包含：片状基材，其是由平均纤维宽度为10～30μm的芳族聚酰胺絮凝物和平均纤维宽度为5～40μm的芳族聚酰胺纤条体构成；微细粘合纤维，其至少存在于所述片状基材的表面上，并且平均纤维宽度小于5μm；至少一种填充物，所述至少一种填充物至少存在于所述片状基材的表面上。本发明的绝缘片即使在高温条件下与金属发生接触也能够抑制其氧化劣化，并且具有优异的电绝缘性和优异的强度。