Improvement of surface wettability and interfacial adhesion of poly-(p-phenylene terephthalamide) by incorporation of the polyamide benzimidazole segment
Source abstract
Abstract
Abstract In order to investigate the effect of the polyamide benzimidazole group on the surface wettability and interfacial adhesion of fiber/matrix composites, surface features of two kinds of aramid fibers, poly (p-phenylene terephthalamide) fiber (Kevlar-49) and poly-(polyamide benzimidazole-co-p-phenylene terephthalamide) (DAFIII), have been analyzed by X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM) and contact angle analysis (CAA) system, respectively. The results show that with the incorporation of the polyamide benzimidazole segment, more polar functional groups exist on DAFIII surface. The contact angles of water and diiodomethane on DAFIII surface get smaller. The surface free energy of DAFIII increases to 36.5 mJ/m2, which is 2.3% higher than that of Kevlar-49. In addition, DAFIII has a larger rough surface compared with that of Kevlar-49 due to different spinning processes. The interfacial shear strength (IFSS) of DAFIII/matrix composite is 25.7% higher than that of Kevlar-49/matrix composite, in agreement with the observed results from surface feature tests. SEM micrographs of failed micro-droplet specimens reveal a strong correlation between the fracture features and the observed test data.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Fiber-reinforced polymer composites · Mechanical Behavior of Composites · Graphene research and applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (28)
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1. Comparison of F-12 aramid fiber with domestic aramid fiber III on surface feature10.1016/j.apsusc.2009.09.055 ↗
2. Compressive strength analysis for high performance fibers with different modulus in tension and compression10.1177/0021998308088589 ↗
3. Crystal structure of poly(2-cynao-1,4-phenylene terephthalamide)10.1021/ma050161t ↗
4. Ultrasonic treatment of aramid fiber surface and its effect on the interface of aramid/epoxy composites10.1016/j.apsusc.2007.09.091 ↗
5. Effect of γ-ray radiation grafting on aramid fibers and its composites10.1016/j.apsusc.2007.10.081 ↗
6. X-ray microdiffraction Study of chain orientation in poly-(p-phenylenetereph thalamide)10.1021/ma990267m ↗
7. Interfacial studies on surface modified Kevlar fibre/epoxy matrix composites10.1016/S1359-8368(98)00053-5 ↗
8. Interfacial studies on the O3 modified carbon fiber-reinforced polyamide 6 composites10.1016/j.apsusc.2008.08.013 ↗
9. The tribological properties of acid- and diamine- modified carbon fiber reinforced polyimide composites10.1016/j.matchemphys.2009.02.024 ↗
10. A Study of the effects of time and temperature on the fiber/matrix interface strength using the micro-bond test10.1016/S0266-3538(96)00146-7 ↗
11. Interfacial behavior of high performance organic fibers10.1016/j.polymer.2009.01.018 ↗
12. Characterization of the surface free energy of cellulose ether films10.1016/S0927-7757(00)00805-0 ↗
13. Surface analysis of plasma grafted carbon fiber10.1016/j.apsusc.2006.06.026 ↗
14. Synthesis and characterization of a rigid-rod dihydroxy poly-(p-phenylene benzobisoxazole) fiber with excellent surface and axial compression properties10.1007/s00289-008-0007-x ↗
15. Comparison of methods for the measurement of fiber/matrix adhesion in composites10.1016/0010-4361(92)90282-Y ↗
16. Micro-bond method for determination of the shear strength of a fiber/resin interface: evaluation of experimental parameters10.1016/0266-3538(89)90076-6 ↗
17. Improvement of interfacial adhesion and nondestructive damage evaluation for plasma-treated PBO and Kevlar fibers/epoxy composites using micromechanical techniques and surface wettability10.1016/S0021-9797(03)00419-3 ↗
18. Improvement of surface wetting properties of poly(p-phenylenebenzoxazole) by incorporation of ionic groups10.1016/j.mseb.2006.02.014 ↗
19. Investigation of the influence of acidic and basic surface groups on carbon fibers on the interfacial shear strength in an epoxy matrix by means of single-fiber pull-out test10.1016/S0266-3538(00)00239-6 ↗
20. Wu · 1982
21. Improvement of surface wettability and interfacial adhesion ability of poly-(p-phenylene benzobisoxazole) (PBO) fiber by incorporation of 2,5-dihydroxyterephthalic acid (DHTA)10.1016/j.eurpolymj.2008.10.041 ↗
22. Surface energetics, dispersion, and nanotribomechanical behavior of POSS/PP hybrid nano-composites10.1002/polb.21261 ↗
23. Tensile properties of fiber reinforced metals: copper/tungsten and copper/molybdenum10.1016/0022-5096(65)90035-9 ↗
24. Briggs · 1998
25. Surface modification of aramid fiber by air DBD plasma at atmospheric pressure with continuous on-line processing10.1016/j.surfcoat.2008.06.181 ↗
26. Comparison of Interfacial properties of electrodeposited single carbon fiber/epoxy composites using tensile and compressive fragmentation tests and acoustic emission10.1006/jcis.2001.8135 ↗
27. Improvement of interfacial adhesion and nondestructive damage evaluation for plasma-treated PBO and Kevlar fibers/epoxy composites using micromechanical techniques and surface wettability10.1016/S0021-9797(03)00419-3 ↗
28. Fluorinated aramid fiber reinforced polypropylene composites and their characterization10.1002/pc.20303 ↗