Abstract: This paper proceeds as follow: taken polyethylene glycol acrylate, N,N-methylene
acrylamide as phase change material, alginic acid fibers as fiber structure, phase change dual
network fiber can be prepared by adopting wet-spinning method. Structure and performance of
phase-change dual network fiber can be showed by using differential scanningcalorimeter (DSC),
thermogravimetric analyzers (TGA). Results show that calcium alginate/polyethylene glycol ester of
phase double network fiber crystallization enthalpy is 68.73 J/g; good thermal stability, and still can remain stable at 200 0C.