Morphology and structure of nylon‐6 crystallized in epoxy resin matrix

Vyas, Aniket; Iroh, Jude O.

doi:10.1002/pen.23616

Cited by 4 publications

(8 citation statements)

References 23 publications

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“…It is essential to understand the morphological evolution, because resultant morphology is the deciding factor behind physical and mechanical properties of polymer composites. The epoxy/nylon blends without clay have been reported before by our group . It was observed that as the epoxy/nylon blend is subjected to curing, nylon tends to crystallize in form of spherulites along with branching, growing radially outwards to occupy the free volume by using epoxy surface as heterogeneous template to grow upon.…”

Section: Resultssupporting

confidence: 55%

“…The melting trend of nylon‐6 in epoxy matrix followed the same fashion as in absence of epoxy. Presence of multiple peaks in nylon‐6/epoxy composite without clay suggests that nylon‐6 crystals used epoxy surface as a template to grow upon but the composites containing clay showed a single peak suggesting, nylon‐6 crystals preferred to use nano‐clay particles as nucleating agent over epoxy surface.…”

Section: Resultsmentioning

confidence: 54%

“…Moreover, silicate layers present in clay can lead to a nucleation and growth of nylon crystals due to hydrogen bonds among nylon chains and silicates . Hence, it can be inferred that nylon‐6 will prefer to crystallize over clay particles instead of epoxy surface, as reported before for system without clay . After curing the blend of clay modified nylon and epoxy, the crystal growth can occur in two conducts: at the surface and inside the bulk of matrix.…”

Section: Resultsmentioning

confidence: 99%

“…Recently, our group reported a unique eco‐friendly and facile processing method to prepare nlon‐6/epoxy blends based on solution polymerization of nylon‐6 . A remarkable semi‐crystalline spherulitic morphology was achieved due to growth of crystals during curing of epoxy.…”

Section: Introductionmentioning

confidence: 99%

“…A remarkable semi‐crystalline spherulitic morphology was achieved due to growth of crystals during curing of epoxy. It was proposed that nylon‐6 crystals uses epoxy surface as template or a nucleating surface to grow on . The effect of morphology on the dynamic mechanical properties, thermal behavior and rheological behavior was also discussed .…”

Section: Introductionmentioning

confidence: 99%

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Clay induced thermoplastic crystals in thermoset matrix: Thermal, Dynamic mechanical, and morphological analysis of clay/nylon‐6‐epoxy nanocomposites

Vyas

Iroh

2015

Polymer Composites

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A novel procedure to synthesize in situ clay/nylon-6 composite suspension was explored via anionic solution polymerization. The suspension was efficiently blended with water-based epoxy resin using mechanical stirrer at room temperature. Hence, a 3-component coating system was obtained consisting of nano-clay, nylon-6 and epoxy resin. Large number of coatings and films were prepared with variation in clay and nylon-6 loading. Concentration of clay was found to have profound effect on crystallinity of nylon-6, thereby affecting the overall properties of clay/nylon/epoxy composite. All the films were characterized for thermal and dynamic mechanical behavior using differential scanning calorimeter (DSC) and dynamic mechanical analysis (DMA). Lower amount of clay was found to increase the crystallinity of nylon-6 which in turn increased the plasticization of epoxy resin indicated by reduction in T g . A multiphase morphology with distinct amorphous and crystalline zones was observed under scanning electron microscopy (SEM). A remarkable symmetrical morphology with branched dendritic crystal structure was observed for few of the clay/nylon/ epoxy system. POLYM. COMPOS., 37:2206-2217, 2016

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Section: Resultssupporting

confidence: 55%

Section: Resultsmentioning

confidence: 54%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Clay induced thermoplastic crystals in thermoset matrix: Thermal, Dynamic mechanical, and morphological analysis of clay/nylon‐6‐epoxy nanocomposites

Vyas

Iroh

2015

Polymer Composites

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Processing and characterization analysis of pyrolyzed oil rubber (from waste tires)‐epoxy polymer blend composite for lightweight structures and coatings applications

Verma

Budiyal

Sanjay

et al. 2019

Polymer Engineering & Sci

125

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In this experimental investigation, the authors have fabricated and characterized composites made from pyrolysis oil rubber and epoxy resin. As the dumping of waste scrap tires poses a serious environmental threat, the pyrolysis oil rubber was extracted from these waste tires only. The prepared blend having pyrolysis oil with various weight percentages (wt%) was examined on the basis of various physical, microstructural, mechanical, and thermal tests. The microstructural tests (scanning electron microscopy and X-ray diffraction) analysis complemented with the mechanical tests (tensile, compression, flexural, hardness, and impact) results and confirmed that the 4.4 wt% of pyrolysis oil in epoxy resin sample exhibited the best results in toughening of the polymer network. Furthermore, the thermal analysis (differential thermal analysis and thermogravimetric analysis), electrical conductivity, density, water absorption, gas chromatography-mass spectroscopy, and Fourier-transform infrared tests for the composites were also performed. Low density and high tensile strength than neat epoxy resin makes this composite a potential candidate for fabricating lightweight structures and in polymer coatings for automotive industries.

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