含磷二元杂化协效阻燃改性聚对苯二甲酸乙二醇酯(PET)的研究进展

聚对苯二甲酸乙二醇酯(PET)作为一种高结晶度的聚合物,是纺织服装用纤维的第一大品种,具有抗蠕变性能好、耐磨性高的优点。然而,PET的易燃性限制了其进一步推广和应用。虽然磷系阻燃剂可以有效提高PET的阻燃性能,但是磷系阻燃剂(如聚碳酸铵、磷酸酯、磷酸盐等)也存在耐热性差、尺寸稳定性低、易渗出、降解产物易诱导PET降解的缺点。因此,针对单一磷系阻燃剂的不足,本文主要综述了磷元素与氮、硅、铝、硼等其它阻燃元素杂化协同的复合阻燃剂用于PET阻燃的改性进展,为设计构筑新型的多元素杂化阻燃剂提供思路。

Research Progress of Phosphorus-Containing Binary Hybrid Synergistic Flame Retardant Modified Polyethylene Terephthalate (PET)

As a high crystallinity polymer,polyethylene terephthalate (PET)is the first variety on the amount for textile and clothing fibers,and has the advantages of good creep resistance and high wear resistance.However,the flammability of PET limits its further promotion and application.Although phosphorus-based flame retardants can effectively improve the flame-retardant properties of PET,phosphorus-based flame retardants (such as ammonium carbonate,phosphates,phosphates,etc.)also have poor heat resistance,low dimensional stability,easy to seep, degradation products are easy to induce PET degradation.Therefore,in view of the shortcomings of single phosphorus flame retardants,this paper mainly reviews the modification progress of composite flame retardants with phosphorus and other flame retardant elements such as nitrogen,silicon,aluminum and boron for PET flame retardant,and provides ideas for constructing new multi-element hybrid flame retardants.