Surface modification of PBO fibers by direct fluorination and corresponding chemical reaction mechanism

Luo, Longbo; Hong, Dawei; Zhang, Lingjie; Cheng, Zheng; Li, Xiangyang

doi:10.1016/j.compscitech.2018.06.014

Cited by 52 publications

(22 citation statements)

References 41 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Poly(ρ-phenylene benzobisoxazole) (PBO) fibers, owing the excellent mechanical properties and thermal stability have been extensively used in the aerospace, electronic engineering, and automotive industries. [1][2][3][4] However, outdoor applications of PBO fibers are hindered by poor interface performance [2,5] and ultraviolet (UV) resistance. [6][7][8] The former drawback is produced by the chemical inertness of PBO fibers.…”

Section: Introductionmentioning

confidence: 99%

In situ growth of TiO₂ nanoparticles onto PBO fibers via a mussel‐inspired strategy for enhancing interfacial properties and ultraviolet resistance

Chen

et al. 2021

Polymer Composites

View full text Add to dashboard Cite

In this work, to overcome the poor interfacial adhesion and ultraviolet (UV) resistance of poly(p-phenylene benzobisoxazole) (PBO) fiber simultaneously, a new hierarchical reinforcement was fabricated by in situ growing titanium dioxide (TiO 2 ) nanoparticles on the surface of the fiber using musselinspired polydopamine (PDA) as a robust reaction platform. The surface morphologies and chemical compositions of the modified fiber were measured to prove the TiO 2 binding. The interfacial shear strength of PBO fiber-reinforced epoxy resin composite had a 57.2% enhancement after TiO 2 modification, which was caused by increased surface roughness (R a ) and wettability. In addition, the thermal stability of the fiber and hygrothermal aging resistance of the composite were improved remarkably. Moreover, the compact TiO 2 coating on the surface of PBO/PDA/Ti led to excellent UV resistance.

show abstract

Section: Introductionmentioning

confidence: 99%

In situ growth of TiO₂ nanoparticles onto PBO fibers via a mussel‐inspired strategy for enhancing interfacial properties and ultraviolet resistance

Chen

et al. 2021

Polymer Composites

View full text Add to dashboard Cite

show abstract

“…High‐performance fibers, such as aramid, PBO and M5, have been widely applied in aerospace, protective materials and advanced electronic devices . However, axial compressive strength of the fibers is generally low, which leads to macrostructure failure when they receive compressive stress ,.…”

Section: Figurementioning

confidence: 99%

Synthesis of A Novel Cross‐linker with High Reactivity for Enhancing Compressive Strength of High‐performance Organic Fibers

et al. 2019

Self Cite

View full text Add to dashboard Cite

Low axial compressive strength of high-performance organic fibers is one of the most prominent problems for their application in advanced technologies. In this paper, N, N'diphenyl-1,4-phenylacetyleneamide (DPAA) as a novel external cross-linker was synthesized. It was confirmed that DPAA could react itself and quickly form cross-linking network above 210°C with pore width of 1-30 nm. Then DPAA was introduced into some typical high-performance organic fibers through postswelling process, followed by annealing at 250°C. It was found that DPAA would in-situ form cross-linking network inside the fiber, which was regarded as semi-interpenetration structure. Compressive strength of Kevlar-49 fiber modified through this method increased by nearly 70% and corresponding tensile strength didn't deteriorate. When PBO, heterocyclic aramid and polyimide fibers were modified by the same procedure, their compressive strength showed 25, 36 and 72% enhancement respectively. Therefore, DPAA is an effective modifier to enhance compressive strength of high-performance organic fibers and shows great universality. 2 3 4 5 6 7 8

show abstract

“…Qi Ma et al 14 deposited polysiloxane microtubules on the surface of PBO fibers by chemical vapor precipitation and constructed silicon-based superhydrophobic surfaces for oil–water separation. Longbo Luo et al 15 enhanced the interfacial bond between the fibers and resin matrix by direct fluorination at room temperature and discussed the mechanism of chemical reaction. Lei Chen et al 16 enhanced interfacial properties of PBO fiber via electroless nickel plating, and the hygrothermal aging properties were significantly improved.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the alkali and oxidation resistance of PBO fibers

Jiang

Tian

Guo

et al. 2020

High Performance Polymers

View full text Add to dashboard Cite

Poly( p-phenylene benzobisoxazole) (PBO) fiber, well-known for its super high strength, is a novel fiber with excellent heat resistance and flame retardancy. However, chemical stability appears to be one of its few weaknesses. In this study, PBO fibers were treated with sodium hydroxide (NaOH) and potassium permanganate (KMnO4) solutions under various conditions. Scanning electron microscopy, optical microscopy, tensile testing, Fourier-transform infrared spectroscopy, differential scanning calorimetry (DSC), and thermogravimetric analysis were employed to characterize the variations of its structure and properties. The results show that many longitudinal corrosion grooves appeared on the surface of PBO fibers treated with KMnO4, while only subtle microcracks occurred after treatment with NaOH. The breaking tenacity of the fiber decreased from 38.13 cN dtex−1 to 2.76 cN dtex−1 after treatment with KMnO4 for 6 h, while it remained at a higher level (27.67cN dtex−1) when treated with NaOH. After treatment with KMnO4 solution, a more obvious absorption peak appeared in the vicinity of 1448.3 cm−1, inferring an occurrence of chemical changes for oxazole ring. Moreover, the remaining mass and initial degradation temperature are significantly improved, also indicating that the cyclic or cross-linked structure is rebuilt. Furthermore, the cyclization or cross-linking of macromolecules destroyed the highly ordered structure of PBO fibers, demonstrated by acromion melting peaks at low temperature in the DSC curves. However, the aggregation and chemical structures of PBO fibers have no obvious changes after treatment with NaOH.

show abstract

Surface modification of PBO fibers by direct fluorination and corresponding chemical reaction mechanism

Cited by 52 publications

References 41 publications

In situ growth of TiO₂ nanoparticles onto PBO fibers via a mussel‐inspired strategy for enhancing interfacial properties and ultraviolet resistance

In situ growth of TiO₂ nanoparticles onto PBO fibers via a mussel‐inspired strategy for enhancing interfacial properties and ultraviolet resistance

Synthesis of A Novel Cross‐linker with High Reactivity for Enhancing Compressive Strength of High‐performance Organic Fibers

Evaluation of the alkali and oxidation resistance of PBO fibers

Contact Info

Product

Resources

About

Surface modification of PBO fibers by direct fluorination and corresponding chemical reaction mechanism

Cited by 52 publications

References 41 publications

In situ growth of TiO2 nanoparticles onto PBO fibers via a mussel‐inspired strategy for enhancing interfacial properties and ultraviolet resistance

In situ growth of TiO2 nanoparticles onto PBO fibers via a mussel‐inspired strategy for enhancing interfacial properties and ultraviolet resistance

Synthesis of A Novel Cross‐linker with High Reactivity for Enhancing Compressive Strength of High‐performance Organic Fibers

Evaluation of the alkali and oxidation resistance of PBO fibers

Contact Info

Product

Resources

About

In situ growth of TiO₂ nanoparticles onto PBO fibers via a mussel‐inspired strategy for enhancing interfacial properties and ultraviolet resistance

In situ growth of TiO₂ nanoparticles onto PBO fibers via a mussel‐inspired strategy for enhancing interfacial properties and ultraviolet resistance