Volume 39, Issue S1 p. E480-E488
Article

Fabrication of flame retardant benzoxazine semi-biocomposites reinforced by ramie fabrics with bio-based flame retardant coating

Hongqiang Yan

Hongqiang Yan

Laboratory of Polymer Materials and Engineering, Ningbo Institute of Technology, Zhejiang University, Ningbo, 315100 China

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Nannan Li

Nannan Li

Laboratory of Polymer Materials and Engineering, Ningbo Institute of Technology, Zhejiang University, Ningbo, 315100 China

Faculty of Healthcare Equipment, Zhejiang Pharmaceutical College, Ningbo, 315100 China

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Jie Cheng

Jie Cheng

Laboratory of Polymer Materials and Engineering, Ningbo Institute of Technology, Zhejiang University, Ningbo, 315100 China

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Pingan Song

Pingan Song

Centre for Future Materials, University of Southern Queensland, Toowoomba, Queensland, 4350 Australia

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Zhengping Fang

Corresponding Author

Zhengping Fang

Laboratory of Polymer Materials and Engineering, Ningbo Institute of Technology, Zhejiang University, Ningbo, 315100 China

Correspondence to: Z. Fang; e-mail: [email protected]Search for more papers by this author
Hao Wang

Hao Wang

Centre for Future Materials, University of Southern Queensland, Toowoomba, Queensland, 4350 Australia

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First published: 17 October 2017
Citations: 17

Abstract

Natural fibers reinforced benzoxazine bio-composites are one class of highly attractive engineering materials in automobile, train and aerospace fields because of high thermal stability, good mechanical and improved biodegradability properties. Unfortunately, their poor interface and flammability issues remain unsatisfactorily addressed to date. Herein, we have demonstrated the fabrication of benzoxazine semi-biocomposites reinforced by ramie fabric which was coated with bio-based poly(diphenolic acid-phenyl phosphate) (poly[DPA-PDCP]) and polyethylenimine (PEI) via layer-by-layer self-assembly method. The results show that the presence of poly(DPA-PDCP)/PEI coating can significantly improve the interfacial adhesion between fabric and the resin matrix. This enables the tensile strength and flexural strength of as-prepared semi-biocomposite to increase by 53% (68.7 MPa) and 113% (120 MPa), respectively. In addition, the resultant semi-biocomposite shows superior flame retardancy with a V-0 rating achieved in the UL-94 test. This work offers an effective approach to fabricate strong and flame retardant benzoxazine semi-biocomposites. POLYM COMPOS., 39:E480–E488, 2018. © 2017 Society of Plastics Engineers