Synthesis of a novel modified chitosan as an intumescent flame retardant for epoxy resin

被引：35

作者：

Yu, Haihua ^{[1
]}

Xu, Xiuhang ^{[1
]}

Xia, Yunfei ^{[1
]}

Pan, Mingzhen ^{[1
]}

Zarshad, Nighat ^{[1
]}

Pang, Bo ^{[2
]}

Rahman, Anis Ur ^{[3
]}

Wu, Min ^{[1
]}

Ni, Henmei ^{[1
]}

机构：

[1] Southeast Univ, Sch Chem & Chem Engn, Nanjing 211189, Peoples R China

[2] Southeast Univ, Sch Mat Sci & Engn, Nanjing 211189, Peoples R China

[3] Nanjing Univ, Dept Chem & Chem Engn, Nanjing 210023, Peoples R China

来源：

E-POLYMERS | 2020年 / 20卷 / 01期

关键词：

chitosan; OMMT; intumescent flame retardant; EP; chemical bond; THERMAL-DEGRADATION BEHAVIOR; MECHANICAL-PROPERTIES; FLAMMABILITY PROPERTIES; ALUMINUM PHOSPHINATE; COMBUSTION BEHAVIORS; HUMAN EXPOSURE; ZINC BORATE; PHOSPHORUS; ORGANOPHOSPHATE; POLYURETHANE;

D O I：

10.1515/epoly-2020-0036

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

According to the concept of fire life cycle assessment (LCA), a new type of intumescent flame retardant was designed and synthesized by chemically bonding chitosan, phosphorus pentoxide and melamine. The resultant compound, chitosan ethoxyl melamine phosphate (CEMP), was characterized by FTIR, H-1 NMR, P-31 NMR, XRD and SEM. The performance of CEMP and organic montmorillonite (OMMT) was evaluated in the substrate of epoxy resin (EP) with limited oxygen index (LOI), UL-94, cone calorimetric test (CCT), TGA and TG-IR. As a result, intumescent flame retardant EP (EP3) containing 30.6% LOI and V-0 rating was prepared by adding 3 wt% OMMT and 15 wt% CEMP. The CCT results indicated that CEMP and OMMT reduced the peak of heat release rate (PHRR) to about one fourth that of pure EP and total heat release (THR), 1/2. Decomposition of EP and EP3 was traced from 100 to 600 degrees C by TG-IR.

引用

页码：303 / 316

页数：14

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