Durable grafting of silkworm pupa protein onto the surface of polyethylene terephthalate fibers.
In this paper, reactive -NH2 groups (8.36×10(-6)mol/g fabric) were introduced to the surface of polyethylene terephthalate (PET) fabrics by a nitration and reduction method, and epoxy groups were introduced to silkworm pupa protein (SPP) by reaction with epoxy chloropropane. PET-SPP composite fabrics were then prepared by reaction of these two precursors. The results showed that the SPP was firmly grafted onto the PET fabric surface and that the hydrophilicity of the fabric was markedly improved by the grafting of SPP. SEM images revealed a layer of substance covering the surface of the PET fibers, and XPS investigation showed that the nitrogen content of the PET-SPP fabric was higher than that of the original PET fabric (2.32% vs 0%). ATR-FTIR adsorption bands at 1653 and 1543cm(-1) suggested the successful grafting of SPP onto the PET fabric surface. The DSC and TG of the PET fibers demonstrated that the thermal stability of the original PET fibers was maintained well by the SPP-grafted PET fibers. The breaking strength, bending rigidity, air permeability, and crease recovery angle of the original PET fabric were also retained by the SPP-grafted PET fabric.
College of Textiles & Garments, Southwest University, Chongqing 400716, China; Chongqing Engineering Research Center of Biomaterial Fiber and Modern Textile, 400716, China. Electronic address: 584884673@qq.com.
Jianfeng
J
Zhou
College of Textiles & Garments, Southwest University, Chongqing 400716, China; Chongqing Engineering Research Center of Biomaterial Fiber and Modern Textile, 400716, China. Electronic address: 183737543@qq.com.
Dandan
D
Zheng
School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China. Electronic address: zhangfx656472@sina.com.cn.
Fengxiu
F
Zhang
College of Textiles & Garments, Southwest University, Chongqing 400716, China; Chongqing Engineering Research Center of Biomaterial Fiber and Modern Textile, 400716, China. Electronic address: zgx656472@sina.com.
Guangxian
G
Zhang
D000818:Animals; D012831:Bombyx / Q000737:chemistry*; D002152:Calorimetry, Differential Scanning; D057927:Hydrophobic and Hydrophilic Interactions; D019476:Insect Proteins / Q000494:pharmacology*; D015538:Nitrosation; D056951:Photoelectron Spectroscopy; D011093:Polyethylene Terephthalates / Q000494:pharmacology*; D011679:Pupa; D017550:Spectroscopy, Fourier Transform Infrared; D013499:Surface Properties; D013784:Textiles; D013818:Thermogravimetry
D019476:Insect Proteins; D011093:Polyethylene Terephthalates
Graft; Hydrophilicity; PET; Silkworm pupa protein; Skin-friendly