Provided is a polyphenylene ether flame-retardant resin composition having excellent flame retardance and long-term flame retardance. The flame-retardant resin composition contains: (A) a resin including (A-1) a polyphenylene ether; and (B) a flame retardant. The (A-1) component has a content of 50 mass % or more when the flame-retardant resin composition minus ash content, corresponding to a residue obtained upon burning of the flame-retardant resin composition, is taken to be 100 mass %. A shaped article of 12.6 cm in length, 1.3 cm in width, and 1.6 mm in thickness formed from the flame-retardant resin composition exhibits a rate of change of chloroform-insoluble content of 15 mass % or less through aging in which the shaped article is left for 1,000 hours at 150° C. in an atmospheric air.
本文提供了一种具有优异阻燃性和长期阻燃性的聚苯醚阻燃
树脂组合物。该阻燃性
树脂组合物包含:(A) 包含(A-1)聚苯醚的
树脂;以及 (B) 阻燃剂。当阻燃
树脂组合物减去灰分(相当于阻燃
树脂组合物燃烧后的残留物)为 100 质量%时,(A-1) 成分的含量为 50 质量%或以上。由阻燃性
树脂组合物制成的长 12.6 厘米、宽 1.3 厘米、厚 1.6 毫米的成型品在大气中于 150° C 温度下放置 1,000 小时后,
氯仿不溶物含量的变化率为 15 质量%或以下。