Preparation of calcium alginate/polyethylene glycol acrylate double network fiber with excellent properties by dynamic molding method

Weidong Zhou; Hong Zhang; Yuanfa Liu; Xinquan Zou; Junfeng Shi; Yunhe Zhao; Yongming Ye; Yue Yu; Jing Guo

doi:10.1016/j.carbpol.2019.115277

Preparation of calcium alginate/polyethylene glycol acrylate double network fiber with excellent properties by dynamic molding method

Carbohydr Polym. 2019 Dec 15:226:115277. doi: 10.1016/j.carbpol.2019.115277. Epub 2019 Aug 30.

Authors

Weidong Zhou¹, Hong Zhang², Yuanfa Liu³, Xinquan Zou¹, Junfeng Shi¹, Yunhe Zhao¹, Yongming Ye¹, Yue Yu¹, Jing Guo¹

Affiliations

¹ School of Textile and Material Engineering, Dalian Polytechnic University, Dalian, 116034, PR China.
² School of Textile and Material Engineering, Dalian Polytechnic University, Dalian, 116034, PR China. Electronic address: zhang_hong1234@sina.com.
³ School of Textile and Material Engineering, Dalian Polytechnic University, Dalian, 116034, PR China. Electronic address: Liuyf@dlpu.edu.cn.

PMID: 31582081
DOI: 10.1016/j.carbpol.2019.115277

Abstract

In order to greatly reduce the viscosity of sodium alginate (SA) gel solution and improve the properties of calcium alginate (CA) fiber, SA/polyethylene glycol acrylate (PEGDA) gel spinning solution with interpenetrating network structure was prepared by using one-pot method firstly. Then the solution was extruded continuously into the coagulation bath. CA/PEGDA composite fiber with double network was prepared by ionic crosslinking SA macromolecules with Ca²⁺ during the dynamic molding process of solidification, stretch and curl. Rheological results indicated that the spinning solution's apparent viscosity was 92.8% smaller than that of the pure SA solution at PEGDA content of 20 wt%. As the PEGDA content increased, the storage modulus G' and the loss modulus G" both decreased. FTIR results showed that PEGDA content had an obvious influence on hydrogen bond in CA/PEGDA system. The tensile strength of composite fiber reached maximum of 2.91cN/dtex at PEGDA of 10%.

Keywords: Composite fiber properties; Double network; Intermolecular interaction; Polyethylene glycol acrylate; Rheology behavior; Sodium alginate.