Polyamide fiber reinforced polymeric composites: A short review

Maurya, Atul Kumar; Kumar, Sachin; Singh, Manjinder; Manik, Gaurav

doi:10.1016/j.matpr.2022.10.171

Cited by 21 publications

(4 citation statements)

References 34 publications

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“…[1][2][3][4] In this regard, last few decades have seen enormous increment in the development of short fiber reinforced polymer composites. High-strength short fibers such as carbon, 5,6 aramid, 7 and glass 8 were used by various industries/researchers earlier for reinforcing thermoplastic polymers. 9,10 These short fibers are deployed for the fabrication of automobile parts, aerospace applications, high strength casing for electronic gadgets, construction, and many more.…”

Section: Introductionmentioning

confidence: 99%

Development and characterization of a recycled nylon fiber reinforced and nano-fly ash hybridized high impact performance polypropylene composite for sustainability

Maurya

Manik

2022

Journal of Thermoplastic Composite Materials

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The pursuit of a renewable and recyclable material to reduce carbon footprint is the need of the hour for a safe and secure future of flora and fauna. This study explores the reinforcement potential of pre-treated recycled nylon fiber (NF) with CaCl2, NaOH and silane in a polypropylene (PP) matrix. Silane coating over the fiber surface was confirmed from FTIR and surface morphology. Interfacial interactions among NF and PP were further strengthened by adding nano-structured cetrimonium bromide (CTAB) treated fly ash (FA). A positive hybridization effect of FA was observed on such hybrid composites, apparent from an increment of ∼29% in tensile, ∼49% in flexural, and ∼970% in notched Izod impact strength. FE-SEM analysis showed good dispersion and distribution of reinforcements into the base matrix, establishing excellent interfacial adhesion. DSC analysis showed an increase in crystallization temperature (∼125°C) and a decrease in melting temperature of all the composites, while TGA confirms a reduction in the activation energy of all the composites.

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Section: Introductionmentioning

confidence: 99%

Development and characterization of a recycled nylon fiber reinforced and nano-fly ash hybridized high impact performance polypropylene composite for sustainability

Maurya

Manik

2022

Journal of Thermoplastic Composite Materials

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“…Ling et al performed a study to improve the heat‐resistant properties of V‐belt by loading carbon black in rubber compounds 30 . Few researches have reported on usage of recycled nylon fiber in polymer matrix to maintain the same level of reinforcing efficiency retaining tensile, flexural, and impact properties of the composites with the aim to reduce carbon emission in the manufacture of pristine fiber usage 31 …”

Section: Introductionmentioning

confidence: 99%

“…30 Few researches have reported on usage of recycled nylon fiber in polymer matrix to maintain the same level of reinforcing efficiency retaining tensile, flexural, and impact properties of the composites with the aim to reduce carbon emission in the manufacture of pristine fiber usage. 31 In summary, this study addresses a significant gap in the existing literature by investigating the effects of addition of nylon 66 short fiber into the EPDM rubber composites for V-ribbed belt applications. By employing a novel combination of experimental techniques (by measuring rheological, mechanical morphological, and thermal characteristics with rubber process analyzer, Moving Die Rheometer, UTM, DSC, TGA, and SEM technique etc.…”

Section: Introductionmentioning

confidence: 99%

Nylon 66 short fiber reinforcement in EPDM power transmission belting: A path to enhanced mechanical performance

Muthukannan,

Neethirajan,

Naskar

2024

Polymer Engineering & Sci

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V‐belts are commonly used to transmit power between two distant pulleys. Therefore, a strong reinforcement for dimensional stability and thermomechanical properties are essential in power transmission belts. The influence of resorcinol formaldehyde resin (RFL) treated nylon short fibers in EPDM peroxide‐cured formulations was investigated, with concentrations ranging from 0 to 30 parts per hundred rubber (phr) in increments of five. The incorporation of nylon short fibers resulted in improved tensile and mechanical properties in EPDM vulcanizates. Specifically, the tensile stress at 100% elongation increased by 177% to (10.8 MPa), and the improvement in tear strength to 16.2% (75.7 N/mm) was observed. Among other functional requirements in a weak rubber like EPDM, enhanced tear strength is significant for its application in power transmission. Substantial reinforcement between the fiber‐elastomer matrix was confirmed via scanning electron microscopy, as evidenced by increased storage modulus (E′). Notably, there were no considerable effects on the curing rate or low‐temperature properties. Significant improvement in heat stability is observed through thermogravimetric analysis. These enhancements in mechanical and thermal properties might play a role in increased durability and performance in actual V‐ribbed belt applications.Highlights This manuscript describes the effect of treated nylon 66 short fiber on EPDM V‐belt compound. A significant increase in storage modulus, tear strength, and thermal stability. A belt is made using the experimental formulation and it meets the performance requirement. Low fiber content (<15 phr) compounds are unsuitable for dimensional stability. High fiber content (>25 phr) compounds pose processing challenges.

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“…Designing such circular pathways requires key information such as catalyst, product, reactant, methods, etc., for plastic waste recycling, which is scattered in journals, books, and web sites. To name a few, some of the key techniques related to plastic waste recycling are discussed in refs − . Due to the plethora of scientific literature available, it is exceedingly difficult to distill the required information from these resources.…”

Section: Introductionmentioning

confidence: 99%

Recycle-BERT: Extracting Knowledge about Plastic Waste Recycling by Natural Language Processing

Kumar,

Bakshi,

Ramteke

et al. 2023

ACS Sustainable Chem. Eng.

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Managing waste plastic is a serious global challenge since most of this waste is either landfilled, incinerated, burned in the open, or littered. Each of these approaches has a large environmental impact. Establishing a circular economy of plastics requires its recovery and recycling, and much effort is now focused in this direction. The body of literature on approaches for managing the end of life of plastics is growing exponentially, making it increasingly difficult to segregate the most relevant information across multiple articles. Such work is extremely timeand effort-consuming, particularly when performed manually. To address this issue, in this study, we propose a methodology based on natural language processing (NLP) for automatically extracting and compiling information that is most relevant to a selected category of plastics. In the developed methodology, the research articles are first extracted with the help of a science-direct Elsevier Application Programming Interface key by utilizing a set of keywords such as "polyethylene recycle methods", "polyethylene terephthalate recycle methods", "polypropylene recycle methods", and "polystyrene recycle methods" for relevant articles. Extracted articles are processed to address two fundamental problems; (i) classification and (ii) question and answer (Q&A) related to literature pertaining to plastic waste recycling. To this extent, we developed a bundle of NLP tools called Recycle-Bidirectional Encoder Representations from Transformers (BERT). Under the hood, Recycle-BERT comprised five language models, (1) Class-BERT, for classifying the literature as relevant or nonrelevant; (2) Catalyst-BERT, for extracting catalyst details for recycling; (3) Method-BERT, for finding the methods enlisted in the literature for recycling; (4) Reactant-BERT to identify the reactants used for waste recycling; and (5) Product-BERT to pinpoint products obtained from recycling. We have evaluated the performance of the developed models based on the metrics such as accuracy and F1-score. For the classification task, an accuracy metric value of 0.974 is obtained for the test data set. Similarly, the metric F1-score values for the Q&A task are 0.7646, 0.8014, 0.8221, and 0.8512 for the test data set for Catalyst-BERT, Method-BERT, Reactant-BERT, and Product-BERT, respectively. The results indicate the proposed NLP-based model's ability to extract essential information from the literature related to plastic waste processing, aiding suitable recommendations to assist transformation to a sustainable circular economy.

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Polyamide fiber reinforced polymeric composites: A short review

Cited by 21 publications

References 34 publications

Development and characterization of a recycled nylon fiber reinforced and nano-fly ash hybridized high impact performance polypropylene composite for sustainability

Development and characterization of a recycled nylon fiber reinforced and nano-fly ash hybridized high impact performance polypropylene composite for sustainability

Nylon 66 short fiber reinforcement in EPDM power transmission belting: A path to enhanced mechanical performance

Recycle-BERT: Extracting Knowledge about Plastic Waste Recycling by Natural Language Processing

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