Direct grafting of octamaleamic acid-polyhedral oligomeric silsesquioxanes onto the surface of carbon fibers and the effects on the interfacial properties and anti-hydrothermal aging behaviors of silicone resin composites

Wu, Guangshun; Chen, Lei; Liu, Li

doi:10.1007/s10853-016-0401-y

Cited by 29 publications

(12 citation statements)

References 35 publications

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“…The weak interface of untreated CF composites facilitates the penetration of water molecules and produces many flaws at the interface region, followed by catastrophic interface failure. The hierarchical reinforcing interface of the CF/GO (0.5%) composite can reduce the stress concentration by improving the efficiency of stress transfer from PPBES to CFs and decrease the amount of the cracks, which can effectively protect the interface and prevent the composite from hydrothermal ageing failure [ 36 ].…”

Section: Resultsmentioning

confidence: 99%

Improved Mechanical Properties of Copoly(Phthalazinone Ether Sulphone)s Composites Reinforced by Multiscale Carbon Fibre/Graphene Oxide Reinforcements: A Step Closer to Industrial Production

Yang

Bao

et al. 2019

Polymers

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The properties of carbon fibre (CF) reinforced composites rely heavily on the fibre-matrix interface. To enhance the interfacial properties of CF/copoly(phthalazinone ether sulfone)s (PPBES) composites, a series of multiscale hybrid carbon fibre/graphene oxide (CF/GO) reinforcements were fabricated by a multistep deposition strategy. The optimal GO loading in hybrid fibres was investigated. Benefiting from the dilute GO aqueous solution and repeated deposition procedures, CF/GO (0.5%) shows a homogeneous distribution of GO on the hybrid fibre surface, which is confirmed by scanning electron microscopy, atomic force microscope, and X-ray photoelectron spectroscopy, thereby ensuring that its PPBES composite possesses the highest interlaminar shear strength (91.5 MPa) and flexural strength (1886 MPa) with 16.0% and 24.1% enhancements, respectively, compared to its non-reinforced counterpart. Moreover, the incorporation of GO into the interface is beneficial for the hydrothermal ageing resistance and thermo-mechanical properties of the hierarchical composite. This means that a mass production strategy for enhancing mechanical properties of CF/PPBES by regulating the fiber-matrix interface was developed.

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Section: Resultsmentioning

confidence: 99%

Improved Mechanical Properties of Copoly(Phthalazinone Ether Sulphone)s Composites Reinforced by Multiscale Carbon Fibre/Graphene Oxide Reinforcements: A Step Closer to Industrial Production

Yang

Bao

et al. 2019

Polymers

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“…C) retentions for CF/PPBES/PPEK‐NH 2 (4) composite are 91.3 and 89.7%, which are higher than that of 83.6 and 81.6% for CF/PPBES. Poor interface can be easily penetrated and destroyed by water molecules , manifesting as weak hydrothermal aging resistance. The compatibilization effect of PPEK‐NH 2 (4) at interface region strengthen the interfacial adhesion between the CFs and PPBES, which benefits to prevent water molecules from spreading and restrain PPBES swelling alongside the interface between fibers and matrix.…”

Section: Resultsmentioning

confidence: 99%

Compatibilization effect of aminated poly(phthalazinone ether ketone)s in carbon fiber‐reinforced copoly(phthalazinone ether sulfone)s composites

Zong

et al. 2017

Polymer Composites

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In this study, a kind of aminated poly(phthalazinone ether ketone)s (PPEK‐NH2s) with amino groups on side chains were synthesized by the condensation polymerization of 4‐(4‐Hydroxylphenyl)(2H)‐phthalazin‐1‐one (DHPZ), 4,4′‐difluoro benzophenone (DFK), and the third active monomer (4‐Amino)phenylhydroquinone (4‐AmPHQ). Then, PPEK‐NH2s were employed as compatibilizers to enhance the interfacial adhesion of carbon fiber (CF) reinforced copoly(phthalazinone ether sulfone)s (PPBES) composites. Differential scanning calorimetry and thermogravimetric analysis profiles indicate that PPEK‐NH2s exhibit more impressive thermal behaviors than PPBES. CF/PPBES composites with 5 wt% compatibilizers based on PPBES were fabricated by solution impregnation and compression molding. The as‐made CF/PPBES/PPEK‐NH2 (4) demonstrates the highest interlaminar shear strength and flexural strength with increasement of 12.7% and 16.8%, respectively. Meanwhile, this composite exhibits excellence in hydrothermal aging tests. Moreover, the strengthening mechanisms of CF/PPBES composites with PPEK‐NH2s could be attributed to both chemical and physical interaction between the matrix and CFs owing to amino groups. Therefore, these compatibilizers offer new insights for fabricating high‐performance advanced thermoplastic composites. POLYM. COMPOS., 39:4139–4147, 2018. © 2017 Society of Plastics Engineers

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“…Aldehydes, ketones, and carboxylic acids are essential industry products and intermediates 1 . Among them, aldehydes, 2–5 carboxylic acids, 6–8 amides, 9,10 and other derivatives are commonly found in literature as starting materials or building blocks in several synthetic methodologies. These derivatives are commonly prepared by oxidation of the corresponding alcohols as reported in literature 11 ; in this regard, organic solvents and nongreen oxidants (CrO 3 , NaClO, KMnO 4 , etc.)…”

Section: Introductionmentioning

confidence: 99%

Ligand coordination sphere effect of Schiff base cis‐dioxomolybdenum(VI) complexes in selective catalytic oxidation of alcohols

Liu

Zhuo

Zhang

et al. 2021

Int J of Chemical Kinetics

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Several cis‐dioxomolybdenum(VI) complexes with Schiff bases‐derived ligands were synthesized and fully characterized. The catalytic performances of these complexes were tested in the alcohol oxidation under solvent‐free condition using H2O2 as oxidant giving high results. The influence of the oxygen, sulfur, and nitrogen atom within the coordination sphere around the molybdenum center was studied (S > N > O). From this study, we suggest that there exists a relationship between the electronegativity of the atom and the catalytic performance in alcohol oxidation.

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Direct grafting of octamaleamic acid-polyhedral oligomeric silsesquioxanes onto the surface of carbon fibers and the effects on the interfacial properties and anti-hydrothermal aging behaviors of silicone resin composites

Cited by 29 publications

References 35 publications

Improved Mechanical Properties of Copoly(Phthalazinone Ether Sulphone)s Composites Reinforced by Multiscale Carbon Fibre/Graphene Oxide Reinforcements: A Step Closer to Industrial Production

Improved Mechanical Properties of Copoly(Phthalazinone Ether Sulphone)s Composites Reinforced by Multiscale Carbon Fibre/Graphene Oxide Reinforcements: A Step Closer to Industrial Production

Compatibilization effect of aminated poly(phthalazinone ether ketone)s in carbon fiber‐reinforced copoly(phthalazinone ether sulfone)s composites

Ligand coordination sphere effect of Schiff base cis‐dioxomolybdenum(VI) complexes in selective catalytic oxidation of alcohols

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