A polyacetal resin composition comprises a polyacetal resin, and a polycyclic aromatic carboxylic acid hydrazide or a polycyclic aromatic carboxylic acid hydrazide having a substituent. The proportion of the polycyclic aromatic carboxylic acid hydrazide may be about 0.001 to 20 parts by weight relative to 100 parts by weight of the polyacetal resin. The polyacetal resin composition may further comprise at least one member selected from an antioxidant, a heat stabilizer, a processing stabilizer, a weather (light)-resistant stabilizer, an impact resistance improver, a slip-improving agent, a coloring agent, and a filler. With the use of such a resin composition, stability of a polyacetal resin is improved, and formaldehyde emission is inhibited.
聚
缩醛树脂组合物由聚
缩醛树脂、多环芳香族
羧酸酰
肼或具有取代基的多环芳香族
羧酸酰
肼组成。相对于 100 重量份的聚
缩醛树脂,多环芳香族
羧酸酰
肼的比例约为 0.001 至 20 重量份。聚
缩醛树脂组合物可进一步包含至少一种选自
抗氧化剂、热稳定剂、加工稳定剂、耐候(光)稳定剂、抗冲击性改进剂、滑爽性改进剂、
着色剂和填料的成分。使用这种
树脂组合物可以提高聚
缩醛树脂的稳定性,并抑制
甲醛释放。