Bisphenol A bis（diphenyl phosphate） oligomer（BDP） is prepared successfully from the reactants consisting of phosphorus oxyehloride （POCl3）, bisphenol A and phenol with a Friedel-Crafts catalyst. The resultant pr...Bisphenol A bis（diphenyl phosphate） oligomer（BDP） is prepared successfully from the reactants consisting of phosphorus oxyehloride （POCl3）, bisphenol A and phenol with a Friedel-Crafts catalyst. The resultant products were examined with thermtygravimetrie analysis （TGA） and high performance liquid chro- matography（HPLC）. Thermogravimetry data shows that BDP decomposes at 375℃ when 5 % weight lost. Experiments results show that catalyst is preferably AICI3 and the amount of it is preferably 1% relative to bisphenol A by mole. POCl3/bisphenol A mole ratio is preferably about 5：1 to 6：1. Experiments unclosed that a seal apparatus is very important to the properties of product.展开更多
通过氧指数、垂直燃烧、热失重、锥形量热和电镜扫描等研究了由双酚 A 双(磷酸二苯酯)(BDP)与聚磷酸铵(APP)组成的膨胀型阻燃剂对环氧树脂的阻燃性能和阻燃机理。结果表明,BDP/APP 膨胀型阻燃剂对环氧树脂有较好的阻燃性能,使环氧树脂...通过氧指数、垂直燃烧、热失重、锥形量热和电镜扫描等研究了由双酚 A 双(磷酸二苯酯)(BDP)与聚磷酸铵(APP)组成的膨胀型阻燃剂对环氧树脂的阻燃性能和阻燃机理。结果表明,BDP/APP 膨胀型阻燃剂对环氧树脂有较好的阻燃性能,使环氧树脂氧指数达到29.9%,垂直燃烧通过 UL94 V-0级,500℃残炭量达到34 8%,平均热释放速率下降70.7%,热释放速率峰值下降67.3%,有效燃烧热平均值下降24.1%。扫描电镜分析表明,经膨胀阻燃剂阻燃的环氧树脂燃烧后能够形成连续、致密、封闭、坚硬的焦化炭层。展开更多
文摘Bisphenol A bis（diphenyl phosphate） oligomer（BDP） is prepared successfully from the reactants consisting of phosphorus oxyehloride （POCl3）, bisphenol A and phenol with a Friedel-Crafts catalyst. The resultant products were examined with thermtygravimetrie analysis （TGA） and high performance liquid chro- matography（HPLC）. Thermogravimetry data shows that BDP decomposes at 375℃ when 5 % weight lost. Experiments results show that catalyst is preferably AICI3 and the amount of it is preferably 1% relative to bisphenol A by mole. POCl3/bisphenol A mole ratio is preferably about 5：1 to 6：1. Experiments unclosed that a seal apparatus is very important to the properties of product.
