Grafting of amine-capped cross-linked polyphosphazenes onto carbon fiber surfaces: a novel coupling agent for fiber reinforced composites

Zhang, Xiaoqing; Xu, Hai‐Bing; Fan, Xinyu

doi:10.1039/c3ra47213b

Cited by 67 publications

(47 citation statements)

References 42 publications

(37 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As these materials are already used in applications, the future potential of cellulose‐based carbon fiber reinforced plastic (cellulose‐based CFRP) is indisputable. Furthermore, in the case of the thermoplastic polypropylene matrix, a substantial increase in the IFSS was reported for a carbon fiber functionalized with amine‐capped cross‐linked polyphosphazenes (IFSS≈32 MPa). Our result is comparable to this value, and the cellulose matrix is still superior with respect to sustainability issues.…”

Section: Resultsmentioning

confidence: 99%

Interphase Engineering of a Cellulose‐Based Carbon Fiber Reinforced Composite by Applying Click Chemistry

et al. 2018

View full text Add to dashboard Cite

Given our possible future dependence on carbon fiber reinforced composites, the introduction of a renewable matrix might be advantageous for the vision of a sustainable world. Cellulose is a superior green candidate and provides exceptional freedom in composite design as the free OH groups can be conveniently functionalized to give tailor‐made materials. To obtain a high‐performing carbon fiber reinforced cellulose propionate composite, we accurately tailored the interfacial adhesion by invoking click chemistry. The synthetic strategy involved grafting of a phenylacetylene structure onto the carbon fiber surface, onto which O‐acylated 6‐azido‐6‐deoxycellulose and a number of aromatic azides could be covalently attached. Single‐fiber fragmentation tests indicated that the lipophilicity and size of the substituent on the deposited structure played a crucial role in determining molecular entanglement and mechanical interlocking effects, as penetration into the cellulose propionate matrix was of utmost importance. Enhanced interfacial shear strength was obtained for the carbon fiber covalently functionalized with the cellulose derivative. Nevertheless, the greatest increase was observed for the derivative substituted with a compact and highly lipophilic CF3 substituent. In a broader sense, our study provides a synthetic platform to bind cellulose derivatives to graphitic surfaces and paves the ways towards the preparation of innovative cellulose‐based carbonaceous materials.

show abstract

Section: Resultsmentioning

confidence: 99%

Interphase Engineering of a Cellulose‐Based Carbon Fiber Reinforced Composite by Applying Click Chemistry

et al. 2018

View full text Add to dashboard Cite

show abstract

“…CFs reinforced polymer composites with their favorable stiffness-to-weight and strength-to-weight ratios are displacing traditional metal materials in a great many of high performance structural applications, such as aerospace and automotive industries [1][2][3][4]. However, the quality of fiber-matrix interface makes a critical contribution to the performance of composites [5][6][7].…”

Section: Introductionmentioning

confidence: 98%

Interface enhancement of carbon fiber reinforced methylphenylsilicone resin composites modified with silanized carbon nanotubes

Liu

et al. 2016

Materials & Design

107

View full text Add to dashboard Cite

“…Therefore, to facilitate this process, we have decided to use 4-(aminomethyl)aniline rather then p-phenylenediamine as starting molecule for the functionalization (Scheme 1A). It is also due to steric reasons that we intended not to build on defect site carboxyl groups as it can be found in several studies, 8,9,24,29 and rather used 4-aminobenzoic acid as starting compound for reaction path B (Scheme 1B).…”

mentioning

confidence: 99%

“…[23][24][25] Of thermoplastic polymers, cellulosic materials are undoubtedly superior candidates for fullling a sustainable development objective due to their renewability and biocompatibility. 26 In particular, cellulosic esters have already gained special interest in many innovative composite applications.…”

mentioning

confidence: 99%

“…Aer carefully examining highresolution XPS spectra or introducing XPS-tags containing atoms that are not native to the carbon bre surface, the limitations could be overcome in several cases. 8,9,11,[17][18][19][20]24,29 It is also important to acquire XPS spectra from different locations along the carbon bre with as large spot size as possible to reduce the effects arising from heterogeneity (in our case a spot size of 400 mm was used). Fig.…”

mentioning

confidence: 99%

See 1 more Smart Citation

Carbon fibre reinforced cellulose-based polymers: intensifying interfacial adhesion between the fibre and the matrix

et al. 2018

View full text Add to dashboard Cite

Interfacial interactions governing the interfacial adhesion between cellulose propionate and carbon fibre surface are placed under scrutiny to pave the way towards the development of green cellulose-based carbon fibre reinforced polymers. A range of molecular entities are deposited on the surface by initially grafting aromatic structures with appropriate functions via diazonium species followed by further derivatization of these entities. Cellulose propionate was also bound covalently to the surface via a tosylated derivative invoking its facile nucleophilic displacement reaction with surface-grafted amino functions. Significant increase in interfacial shear strength was obtained for the cellulose propionategrafted carbon fibre composite as well as for the 4-(aminomethyl)benzene-functionalized sample, in the latter case possible hydrogen bonding took place with the cellulose propionate matrix. Furthermore, the positive effect of a highly lipophilic and yet compact -CF 3 substituent was also noted. In order to let the grafted structure efficiently penetrate into the matrix, steric factors, lipophilicity and potential secondary interactions should be considered. It needs to be pointed out that we provide the first synthetic strategy to covalently bind cellulose derivatives to a largely graphitic surface and as such, it has relevance to carbonaceous materials being applied in cellulose-based innovative materials in the future.

show abstract

Grafting of amine-capped cross-linked polyphosphazenes onto carbon fiber surfaces: a novel coupling agent for fiber reinforced composites

Cited by 67 publications

References 42 publications

Interphase Engineering of a Cellulose‐Based Carbon Fiber Reinforced Composite by Applying Click Chemistry

Interphase Engineering of a Cellulose‐Based Carbon Fiber Reinforced Composite by Applying Click Chemistry

Interface enhancement of carbon fiber reinforced methylphenylsilicone resin composites modified with silanized carbon nanotubes

Carbon fibre reinforced cellulose-based polymers: intensifying interfacial adhesion between the fibre and the matrix

Contact Info

Product

Resources

About