TY - JOUR
T1 - Synthesis and characterization of waterborne polyurethane modified by fluorinated polysiloxane used for fabric coating
AU - Lei, Haibo
AU - Luo, Yunjun
AU - Li, Xiaomeng
AU - Wang, Shengpeng
AU - Li, Zhuoxin
AU - Wang, Baoyi
PY - 2012/4
Y1 - 2012/4
N2 - For the synthesis of high-performance fabric coating agents, water-borne polyurethanes modified by polysiloxane (WFSPU) were prepared by polyaddition reaction using poly (tetramethylene oxide)glycol, polyethylene glycol and amino fluorinated polysiloxane (AFS) as mixing soft segments. The chemical composition of modified polyurethane was characterized using infrared spectroscopy and nuclear magnetic resonance spectroscopy. The emulsion stability was studied by the use of nano-particle size and Zeta potential analyzer. Thermal properties, free volume hole and mechanical properties of WFSPU film were investigated by differential scanning calorimetry, positron annihilation spectroscopy and static tensile test. The results show that stable emulsion can be obtained when the amount of AFS (mass fraction) <10%. Soft segment glass transition temperature of polyurethane film is about -78°C. When the mass fraction of AFS is 6%, the tensile modulus of polyurethane films is up to 47.33 MPa, while the break elongation is 663.49%.
AB - For the synthesis of high-performance fabric coating agents, water-borne polyurethanes modified by polysiloxane (WFSPU) were prepared by polyaddition reaction using poly (tetramethylene oxide)glycol, polyethylene glycol and amino fluorinated polysiloxane (AFS) as mixing soft segments. The chemical composition of modified polyurethane was characterized using infrared spectroscopy and nuclear magnetic resonance spectroscopy. The emulsion stability was studied by the use of nano-particle size and Zeta potential analyzer. Thermal properties, free volume hole and mechanical properties of WFSPU film were investigated by differential scanning calorimetry, positron annihilation spectroscopy and static tensile test. The results show that stable emulsion can be obtained when the amount of AFS (mass fraction) <10%. Soft segment glass transition temperature of polyurethane film is about -78°C. When the mass fraction of AFS is 6%, the tensile modulus of polyurethane films is up to 47.33 MPa, while the break elongation is 663.49%.
KW - Fabric coating
KW - Modification by fluorinated polysiloxane
KW - Water-borne polyurethanes
UR - http://www.scopus.com/inward/record.url?scp=84861951575&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:84861951575
SN - 1000-7555
VL - 28
SP - 26
EP - 30
JO - Gaofenzi Cailiao Kexue Yu Gongcheng/Polymeric Materials Science and Engineering
JF - Gaofenzi Cailiao Kexue Yu Gongcheng/Polymeric Materials Science and Engineering
IS - 4
ER -