Propagation of PAMAM dendrimers on the carbon fiber surface by in situ polymerization: a novel methodology for fiber/matrix composites

Zhang, R.L.; Gao, Bo; Zhang, J.; Cui, Hongzhi; Li, D.W.

doi:10.1016/j.apsusc.2015.10.204

Cited by 30 publications

(19 citation statements)

References 33 publications

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“…Continuous fiber-reinforced thermoplastic resin matrix composites are mainly produced by melt impregnation method, solution impregnation method, in situ polymerization method, powder impregnation method, mixed yarn method and film laminating method. [10][11][12][13][14][15][16][17][18] The process of melt impregnation is simple, environmentally friendly, and convenient to achieve the industrialization. Consequently, it has been one of the most commonly used methods to produce the thermoplastic prepreg.…”

Section: Introductionmentioning

confidence: 99%

Effect of pneumatic spreading on impregnation and fiber fracture of continuous fiber-reinforced thermoplastic composites

Ren

Cao

et al. 2017

Journal of Reinforced Plastics and Composites

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The fiber pre-spreading is of great importance when the continuous fiber-reinforced thermoplastic composites are produced by the melt impregnation process. In this paper, an improved spreading device is introduced, in which via grooving the pins for the airflow, the fiber is pre-spread by the combination of the airflow and the rolls. The objective of this operation is to reduce the contact friction between the fiber bundle and the pins surface, thereby reducing fiber fracture during the pre-spreading process. The influence of airflow on the pre-spreading of the fiber bundle is also investigated in this paper. It is found that the effect of airflow on the impregnation is significant and the fiber fracture rate is reduced effectively by analyzing the water absorption rate, interlayer shear strength and fiber fracture rate of the prepreg. When the air pressure is 0.2 MPa, the performance of the prepreg is optimal.

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Section: Introductionmentioning

confidence: 99%

Effect of pneumatic spreading on impregnation and fiber fracture of continuous fiber-reinforced thermoplastic composites

Ren

Cao

et al. 2017

Journal of Reinforced Plastics and Composites

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“…because PAMAM is only in the size of nanometers and is transparent. 11,22,23 However, the surface roughness of CFs increased, which could increase the surface wettability of CF. AFM was further performed to investigate the surface topography and roughness of different CFs.…”

Section: Characterizationmentioning

confidence: 99%

“…26,27 TG was also carried out to confirm the grafted content on the CF surface by measuring the weight loss from 100 C to 600 C (Figure 4). 11,28 The weight loss of the CFs-NH 2 was mainly attributed to functional groups of EDA (-NH 2 ) and the weight decreased by 0.5%. For PAMAM-grafted CFs, the weight loss was mainly attributed to the degradation of PAMAM 11,25,27 and the weight loss was estimated as 0.74%.…”

Section: Surface Chemical Compositionmentioning

confidence: 99%

“…11,28 The weight loss of the CFs-NH 2 was mainly attributed to functional groups of EDA (-NH 2 ) and the weight decreased by 0.5%. For PAMAM-grafted CFs, the weight loss was mainly attributed to the degradation of PAMAM 11,25,27 and the weight loss was estimated as 0.74%. The weight loss indicated that the PAMAM dendrimers were successfully grafted on the CFs.…”

Section: Surface Chemical Compositionmentioning

confidence: 99%

“…Especially, the poly(amido amine) (PAMAM) dendrimer grafted on the CF could significantly increase the mechanical properties of the resulting composites with low melting viscosity, many amino groups, and high solubility. 11,12 To improve control over PAMAM dendrimers synthesis, two general strategies involving the ''grafting to'' [13][14][15] strategy and the ''grafting-from'' [16][17][18] strategy can be considered. The grafting to strategy is based on attachment of premade polymer onto the CFs via chemical reactions, while the grafting-from strategy is based on propagation of PAMAM dendrimer on the CF by in situ polymerization of appropriate monomers.…”

Section: Introductionmentioning

confidence: 99%

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Effects of grafting low-generation poly(amido amine) onto carbon fiber surface by in situ polymerization on the mechanical properties of fiber composites

Gao

et al. 2016

High Performance Polymers

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Low-generation poly(amido amine) (PAMAM)-grafted carbon fibers (CFs) emerged as a new reinforcement for improving the mechanical properties of fiber composites. In this work, hybrid reinforcement, which could greatly enhance the surface roughness and wettability of CF, was prepared via growing PAMAM onto fiber surface by in situ polymerization.The modified surface morphology and chemical composition were investigated by scanning electron microscopy, atomic force microscopy, dynamic contact angle analysis test, and X-ray photoelectron spectroscopy. Experimental results indicated PAMAM dendrimers grown on the CF significantly enhanced interfacial properties of the resulting composites. In addition, compared with the desized CF composites, the CF grafted with PAMAM composites exhibited 34.65% enhancement in the interfacial shear strength.

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β‐Cyclodextrin PAMAM Dendrimer Surface Doped with Silver and Hexacyanoferrate (III) and its Applications for Dopamine Detection in Synthetic Samples

et al. 2022

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A synthesis of β-cyclodextrin (β-Cd) functionalized with polyamide dendrimer PAMAM G.0 complexed with silver and potassium hexacyanoferrate (III) forming a mixed-valence complex (β-Cd-PAMAM-Ag/Fe) was proposed. This material was characterized by scanning electron microscopy (SEM), infrared spectroscopy (FT-IR), X-Ray diffraction (XRD), Energy Dispersion Spectroscopy (EDS) and Electron Paramagnetic Resonance (EPR). The hybrid complex was electrochemically investigated using cyclic voltammetry and some parameters (electrolyte, concentration of electrolyte, pH and scan rate) were evaluate in order to obtain optimum analytical responses. The β-Cd-PAMAM-Ag/Fe material was successfully applied in the electrocatalytic oxidation of dopamine (DOP) using Cyclic Voltammetry (CV) and Square Wave Voltammetry (SWV).

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Propagation of PAMAM dendrimers on the carbon fiber surface by in situ polymerization: a novel methodology for fiber/matrix composites

Cited by 30 publications

References 33 publications

Effect of pneumatic spreading on impregnation and fiber fracture of continuous fiber-reinforced thermoplastic composites

Effect of pneumatic spreading on impregnation and fiber fracture of continuous fiber-reinforced thermoplastic composites

Effects of grafting low-generation poly(amido amine) onto carbon fiber surface by in situ polymerization on the mechanical properties of fiber composites

β‐Cyclodextrin PAMAM Dendrimer Surface Doped with Silver and Hexacyanoferrate (III) and its Applications for Dopamine Detection in Synthetic Samples

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