| 摘要 |
PROBLEM TO BE SOLVED: To provide a low smoke polyvinyl chloride-based sheet which has flexibility and reduces smoke generation when burning.SOLUTION: A low smoke polyvinyl chloride-based sheet includes: a surface layer comprising a resin composition containing 10-50 pts.wt. of a plasticizer and 5-80 pts. of a filler relative to 100 pts.wt. of a polyvinyl chloride-based resin; and a substrate layer comprising a resin composition containing 30-100 pts.wt. of a plasticizer and 50-400 pts. of a filler relative to 100 pts.wt. of the polyvinyl chloride-based resin. In the surface layer and/or the substrate layer, a content ratio of a phthalate ester plasticizer and a phosphate ester plasticizer to the plasticizer is 50 wt.% or less. Furthermore, as the plasticizer, an alkyl sulfonate ester plasticizer and a polyester plasticizer can be used. |
