| 摘要 |
PROBLEM TO BE SOLVED: To provide a fire retardant sealing sheet favorable in exfoliation performance from a body to be adhered (seal body to be adhered) while having high seal performance.SOLUTION: The sealing sheet includes a fire retardant adhesive sheet having an adhesive layer containing a fire retardant, and a holding time at the following constant load exfoliation test is 60 to 2,000 sec. [Constant load exfoliation test] (1) The sealing sheet is cut to a tape of 10 mm/width×50 mm/length. (2) The tape is laminated on a duralumin panel, 5 kgf of a roller is rolled on the tape from one end of the tape in the length direction of the tape to the other end, the tape is tightly adhered to the duralumin panel, and a sample is formed. (3) The sample is left at a normal temperature and under a normal humidity atmosphere for 24 hours, the sample is fixed horizontally by making a tape side oriented downward, 30 gf of a weight is hung down at one end of the tape in the length direction, a time of the arrival of an exfoliation distance of the tape up to 30 mm after the hang-down of the weight is measured, and this time is set as the holding time. |
