Novel polyamide 6 composites based on Schiff-base containing phosphonate oligomer: High flame retardancy, great processability and mechanical property

被引：73

作者：

He, Feng-Ming ^{[1
,2
]}

Liu, Bo-Wen ^{[1
]}

Chen, Li ^{[1
]}

Guo, De-Ming ^{[1
]}

Ding, Xiao-Min ^{[1
]}

Xiao, Yan-Fang ^{[1
]}

Zhao, Hai-Bo ^{[1
]}

Li, Wen-Da ^{[2
]}

Wang, Yu-Zhong ^{[1
]}

机构：

[1] Sichuan Univ, State Key Lab Polymer Mat Engn, Collaborat Innovat Ctr Ecofriendly & Fire Safety, Sch Chem Engn,Natl Engn Lab Ecofriendly Polymer M, Chengdu 610064, Peoples R China

[2] JITRI, Inst Adv Polymer Mat Technol, Nanjing 210000, Peoples R China

来源：

COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING | 2021年 / 146卷

基金：

中国国家自然科学基金; 中国博士后科学基金;

关键词：

Thermoplastic resin; Flame; fire retardancy; Mechanical properties; Flame-retardant mechanism; MAGNESIUM-HYDROXIDE; CHAR FORMER; ZINC BORATE; MONTMORILLONITE; DECOMPOSITION; PHOSPHINATE; COMBINATION;

D O I：

10.1016/j.compositesa.2021.106423

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Conventional methods of improving the flame retardancy of PA 6 usually involve the sacrifice of mechanical properties, which is unfavorable for the practical application. Herein, two Schiff-base containing phosphonate oligomers PSA and POSC, were designed and used as novel flame retardants for PA 6. The PA 6-PSA20 composite involving P-Ph structure achieved a LOI value of 27% and UL-94 V-0 rating, while the PA 6-POSC20 composite involving P-O-Ph structure achieved a higher LOI value of 32% but a UL-94 V-2 rating. The PA 6-POSC composites also exhibited better heat-suppression effect than the PA 6-PSA composites. The different flame-retardant mechanism of these two flame retardants were comprehensively studied via Raman spectra, XPS, FTIR, TG-IR and Py-GC/MS. Additionally, the PA 6 composites all exhibited great processability and largely retained mechanical properties. This work proposed an efficient route for preparing flame-retardant polyamide composite with excellent overall performance.

引用

页数：11

共 60 条

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