A novel P-N-based flame retardant with multi-reactive groups for treatment of cotton fabrics

被引:36
作者
Chen, Yu [1 ,2 ]
Wang, Dingfei [1 ,2 ]
Liu, Shidong [1 ,2 ]
Lu, Yonghua [3 ]
Zhang, Guangxian [1 ,2 ]
Zhang, Fengxiu [4 ]
机构
[1] Southwest Univ, Coll Text & Garments, Chongqing 400716, Peoples R China
[2] Chongqing Engn Res Ctr Biomat Fiber & Modern Text, Chongqing 400716, Peoples R China
[3] Shandong Ruyi Technol Grp Co Ltd, Jining 272000, Shandong, Peoples R China
[4] Southwest Univ, Coll Chem & Chem Engn, Inst Bioorgan & Med Chem, 2 Tiansheng St, Chongqing 400716, Peoples R China
关键词
Phosphorus-containing flame retardant; Cotton; Flame retardant; Limiting oxygen index; CHITOSAN; POLYESTER; TRIAZINE; NITROGEN; ACID; SALT;
D O I
10.1007/s10570-020-03387-0
中图分类号
TB3 [工程材料学]; TS [轻工业、手工业、生活服务业];
学科分类号
0805 ; 080502 ; 0822 ;
摘要
A novel P-N based, flame retardant ammonium salt of pentaethylenehexamine octa (methylene-phosphoric acid) (APHOMPA) was synthesized in this study. The structure of the prepared material flame retardant contains eight reactive ammonium phosphorus groups and was characterized by(1)H NMR,C-13 NMR,P-31 NMR, and (Fourier-transform infrared) FT-IR. The results showed that cotton fabrics finished with this flame retardant exhibited excellent flame retardancy and durability. The cotton fabrics finished with 30% APHOMPA solution had limiting oxygen index value 40.5%, and maintained 28.8% even after 50 laundering cycles. The FT-IR results showed that APHOMPA could be grafted on cellulose through P-O-C covalent bond. Vertical flammability, cone calorimetry, thermogravimetric (TG), and TG-IR results revealed the excellent flame retardancy of the finished cotton fabrics and suggested that the flame retardant mechanism of APHOMPA is a condensed phase process. Scanning electron microscopy results suggested the flame retardant entered the inner space of the cotton fabrics, and the X-ray diffraction results showed slight changes to the cotton crystal structure in the finishing process. The breaking strength, softness, and whiteness of finished cotton fabrics were sufficient, suggesting this retardant can be used to prepare treated cotton for multiple applications. [GRAPHICS] .
引用
收藏
页码:9075 / 9089
页数:15
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