Matrix-graded and fibre-steered composites to tackle stress concentrations

Stanier, D. C.; Radhakrishnan, Arjun; Gent, Ian; Roy, Sree Shankhachur; Hamerton, Ian; Potluri, Prasad; Scarpa, Fabrizio; Shaffer, Milo S. P.; Ivanov, Dmitry

doi:10.1016/j.compstruct.2018.09.019

Cited by 16 publications

(13 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Many of the aforementioned high‐performance resins and their formulations were not been effectively utilized during the past have now become feasible for making unique, specific, and customized components …”

Section: Introductionmentioning

confidence: 99%

Development of epoxy‐cyanate ester‐clay nanocomposites offering enhanced thermally stability

Венкатеш

Gouthaman

Kanemoto

et al. 2019

J of Applied Polymer Sci

Self Cite

View full text Add to dashboard Cite

The preparation and characterization of blends of a series of dicyanate monomers such as 2,2 0 -bis(4-cyanatophenyl) propane (DCDPP), bis-4-cyanato-biphenyl (DCBP), bis-4-cyanatonaphthalene (DCN), 3,3 0 -bis(4-cyanatophenyl)sulphide (DCTDP), 3,3 0 -bis (4-cyanatophenyl)sulphone (DCDPS), and the diglycidyl ether of bisphenol A are reported. These copolymers are combined with a montmorillionite nanoclay and both epoxy-cyanate blends and epoxy-cyanate blends-nanoclay composites are all analyzed for thermal stability, thermal degradation kinetics, flame retardancy, and impact strength. The nanocomposites are further characterized by X-ray diffraction and SEM to determine morphological features, from which structure-property relationships are determined. Dispersion of the nanoclay is of paramount importance, but its inclusion serves to improve char yield and impact strength, when this is achieved.

show abstract

Section: Introductionmentioning

confidence: 99%

Development of epoxy‐cyanate ester‐clay nanocomposites offering enhanced thermally stability

Венкатеш

Gouthaman

Kanemoto

et al. 2019

J of Applied Polymer Sci

Self Cite

View full text Add to dashboard Cite

show abstract

“…Generally, the higher S BET and V BJH values means a more porous structure which can provide more water passages and further increase the water flux of the membrane. It could be seen that the variations of NMP concentration in core liquid have little effect on BET surface area and cumulative volume of pores, with a decrease from 5.576 to 4.155 m 2 .g −1 and 0.089 to 0.057 cm 3 .g −1 , respectively. This was because the formation process of hollow fiber membrane was accompanied by two bidirectional mass transfer processes inside and outside.…”

Section: Resultsmentioning

confidence: 98%

“…The data of water flux and rejection were collected and recorded after circulating feed solution for 30 min at 0.15 MPa. The water flux ( F , L.m −2 .h −1 ) was calculated by the following equation where V , t , and A were water permeation volume (L), membrane effective area (m 2 ), and filtration time (h).…”

Section: Methodsmentioning

confidence: 99%

“…In order to obtain polymer composites with excellent properties, high-performance fiber structural materials such as glass fibers, carbon fibers, and other macro-fibers are commonly used as the reinforcers and blended into resin matrix [1]. However, due to the great difference in thermodynamic properties between reinforced fibers and resin matrix, the poor bonding strength at their interface makes the comprehensive properties of composites far from the expected values [2]. Stress concentration resulting from long-term use leads to serious performance degradation and short life [3].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Effects of spinning conditions on structure and properties of aramid-based hollow fiber blend separation membranes

Shi

Zhang

et al. 2019

Journal of Industrial Textiles

View full text Add to dashboard Cite

The rigid-rod-like poly(p-phenylene terephthalamide) (PPTA), as the raw material of aramid 1414, has the characteristics of high modulus and hydrophilicity. The flat sheet poly(vinylidene fluoride) (PVDF)/PPTA blend separation membranes with improved hydrophilicity and enhanced modulus have been successfully prepared using in situ polycondensation method in our previous study. In this study, PPTA/PVDF hollow fiber blend separation membranes with enhanced hydrophilicity and mechanical strength were fabricated through the dry–wet spinning technique. Monomers of PPTA were polymerized in the PVDF solution, and the polymerization system was directly used as the spinning solution to fabricate the hollow fiber blend membrane. The effects of spinning conditions including the air-gap distance; the composition of core fluid; and composition of coagulation bath on the structure and properties including the separation properties, surface hydrophilicity, and mechanical properties of PPTA/PVDF hollow fiber blend membranes were well investigated. Membrane surface and cross-sectional morphologies were observed through scanning electron microscope. The enhancements of these spinning conditions weakened the phase separation process as a result of the formation of a small pore structure. The pore size distribution, water flux, and solute rejection varied accordingly. Different spinning conditions have different effects on the mechanical and hydrophilic properties of the hollow fiber blend membranes. Compared with pure PVDF hollow fiber membrane, blend membranes fabricated under different spinning conditions exhibited enhanced surface hydrophilicity and tensile properties. Finally, the change rates of the pure water flux and the solute rejection with different spinning conditions were calculated to further analyze and compare the statistically significant effects.

show abstract

“…The results showed a more uniform stress distribution in the overlap area. Stanier et al [19,20] performed open-hole tensile tests on triaxially braided rectangular plates with a controlled braid angle variation and reported an improvement in strength as compared to beams with a constant braid angle. Similar improvement was observed by Huang et al [21] in the tensile strength of braided tubes with graded braid angle profiles.…”

Section: Introductionmentioning

confidence: 99%

Three-point flexural performance of tailor-braided thermoplastic composite beam structures

Reynolds

Keating

Barnett³

et al. 2021

Composite Structures

View full text Add to dashboard Cite

Matrix-graded and fibre-steered composites to tackle stress concentrations

Cited by 16 publications

References 13 publications

Development of epoxy‐cyanate ester‐clay nanocomposites offering enhanced thermally stability

Development of epoxy‐cyanate ester‐clay nanocomposites offering enhanced thermally stability

Effects of spinning conditions on structure and properties of aramid-based hollow fiber blend separation membranes

Three-point flexural performance of tailor-braided thermoplastic composite beam structures

Contact Info

Product

Resources

About