Enzyme-Mediated Grafting of AGE to Kevlar Fiber Using Horseradish Peroxidase

Abstract:

The research is the reaction of the high-performance fiber Kevlar grafted allyl glycidylether (AGE),in the process ,we use the horseradish peroxidase ( HRP ) as the catalyst, H2O2 as the oxidant of free radicals initiator system .The grafted fiber was made to do the following performance tests: element analysis, infrared, SEM, XRD, TG, Contact Angle, tensile strength, be pull out by monofilament. We can see from the infrared spectra , the peak of the grafted fiber in 1510 cm-1and 1250 cm-1 increase apparently, it shows that the AGE has been grafted.There are new peaks in 760 cm-1 and 690 cm-1，proved the grafted position is in benzene rings; from the SEM ,we know the surface roughness of the grafted fiber increase apparently; the test result of TG showed the Yc increased regularly, both of them prove the succession of the grafting, moreover, the fiber also has the good thermal stability after grafted; the contact angle has been reduced from 80 to 60, shows the content of fiber surface polar groups has been increased, enhance the wettability significantly; the monofilament pull out test shows after grafting the adhesion between the Kevlar fiber and the epoxide resin matrix has been improved

• Periodical: Advanced Materials Research (Volumes 430-432)
• Pages: 233-241
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.430-432.233
• Online since: January 2012
• Authors: Yang Liu, Guo Zheng Liang, Ai Juan Gu, Li Yuan
• Keywords: Age, Enzyme-Mediated, Kevlar Fiber, Surface Modification

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