Effect of Latex Compound Dwell Time for the Production of Prototyped Biodegradable Natural Rubber Latex Gloves

Rahman, Mohd Fikri Ab; Rusli, Arjulizan; Kuwn, M. T.; Azura, A. R.

doi:10.1088/1757-899x/548/1/012017

Cited by 10 publications

(4 citation statements)

References 5 publications

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“…Furthermore, the strain of vulcanized NR/SIS blend films in vacuum condition increased after irradiation with values around 850% irrespective of increasing the dose than control blend film, 800%. This is similar to the work of Rahman and coworkers who suggested an increase in elongation at break of NR latex gloves was due to the higher crosslink density that led to higher strain concentration and more force needed to pull the sample 28 . However, the insignificant change in strain values after the irradiation might likely be due to the presence of proteins in NR, which limit the compactness of the rubber network 29 .…”

Section: Resultssupporting

confidence: 88%

“…This is similar to the work of Rahman and coworkers who suggested an increase in elongation at break of NR latex gloves was due to the higher crosslink density that led to higher strain concentration and more force needed to pull the sample. 28 However, the insignificant change in strain values after the irradiation might likely be due to the presence of proteins in NR, which limit the compactness of the rubber network. 29 Based on these results, the crosslinking process under vacuum could be enhanced by preserving the irradiated blend and preventing oxidative degradation in vulcanized NR/SIS blend films.…”

Section: Gel Content Crosslink Density Thermal and Mechanical Propert...mentioning

confidence: 99%

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Optimizing natural rubber blends for examination gloves: Vacuum radiation for mechanical strength and solvent barrier

Lazim,

Shamsudin,

Hidzir

et al. 2023

J of Applied Polymer Sci

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Natural rubber (NR) is emblematic of sustainability compared to synthetic rubber. However, the tradition of adding sulfur as a vulcanization ingredient results in the release of toxic substances and the potential for health issues. In this study, a feasible strategy was proposed to replace sulfur and discover a safe bulk modification process for NR films. The results have shown that the NR particle size was disintegrated to below 10 nm by gamma irradiation. High tension strength up to 24.45 MPa was observed in the vulcanized NR blend film, which could be elongated up to 800% strain after exposure to an optimum dose of 14 kGy. In comparison to commercial NR latex and nitrile gloves, the vulcanized NR/ SIS films exhibited better chemical resistance ability against hexane, methanol, toluene, and acetone, as revealed by the permeation test. The appearance of amorphous regions and highly oriented NR crystallites was observed through transmission electron microscopy. Findings from this study propose the vacuum radiation strategy that can replace conventional vulcanization methods, resulting in NR films with high mechanical and barrier performance. Furthermore, the emission of toxic substances is reduced by this green process, making it practically useful for potential chemical‐resistant examination glove applications.

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Section: Resultssupporting

confidence: 88%

Section: Gel Content Crosslink Density Thermal and Mechanical Propert...mentioning

confidence: 99%

Optimizing natural rubber blends for examination gloves: Vacuum radiation for mechanical strength and solvent barrier

Lazim,

Shamsudin,

Hidzir

et al. 2023

J of Applied Polymer Sci

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“…Leaching is a critical technique in the production of medical gloves because it is the most practical way to reduce undesired elements in rubber gloves while maintaining a clean product. Effective elimination of extractable proteins (which cause Type 1 allergy) and residual chemicals (which cause Type IV skin irritation) requires a mix of wet gel and dry leaching methods [ 37 ]. The mechanical properties and fluorescence of the LC films were determined for each leaching condition.…”

Section: Methodsmentioning

confidence: 99%

Wearable Natural Rubber Latex Gloves with Curcumin for Torn Glove Detection in Clinical Settings

et al. 2022

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Glove tear or perforation is a common occurrence during various activities that require gloves to be worn, posing a significant risk to the wearer and possibly others. This is vitally important in a clinical environment and particularly during surgical procedures. When a glove perforation occurs (and is noticed), the glove must be replaced as soon as possible; however, it is not always noticeable. The present article is focused on the design and development of a novel fluorescence-based sensing mechanism, which is integrated within the glove topology, to help alert the wearer of a perforation in situ. We hypothesized that natural rubber gloves with curcumin infused would yield fluorescence when the glove is damaged, particularly when torn or punctured. The glove design is based on double-dipping between Natural Rubber Latex (NRL) and an inner layer of latex mixed with curcumin, which results in a notable bright yellow-green emission when exposed to UV light. Curcumin (Cur) is a phenolic chemical found primarily in turmeric that fluoresces yellowish-green at 525 nm. The tear region on the glove will glow, indicating the presence of a Cur coating/dipping layer beneath. NRL film is modified by dipping it in a Cur dispersion solution mixed with NRL for the second dipping layer. Using Cur as a filler in NRL also has the distinct advantage of allowing the glove to be made stronger by evenly distributing it throughout the rubber phase. Herein, the optimized design is fully characterized, including physicochemical (fluorescence emission) and mechanical (tensile and tear tests) properties, highlighting the clear potential of this novel and low-cost approach for in situ torn glove detection.

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“…Besides, it can be made into a thin and smooth film that provides good barrier properties against blood-borne pathogens and viruses [ 16 , 17 ]. The thickness of the film can be easily controlled by adjusting the dwell time during the latex dipping process [ 18 ]. Thin-film formation is vital to maintain adequate sound transmission during the auscultation process.…”

Section: Introductionmentioning

confidence: 99%

Natural Rubber (NR) Latex Films with Antimicrobial Properties for Stethoscope Diaphragm Covers

Azura

2022

Materials

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Systematic disinfection of the stethoscope diaphragm is required to ensure that it does not act as a vector for cross-transmission of health-related diseases. Thus, an antimicrobial latex film could be used as a cover to inhibit pathogenic bacteria from growing on its surface. The aim of this work is to determine the antimicrobial activity and mechanical properties of antimicrobial natural rubber (NR) latex films with different types of antimicrobial agents (mangosteen peel powder (MPP), zinc oxide nanoparticles (ZnO NP), and povidone-iodine (PVP-I)). The antimicrobial loading was varied from 0.5, to 1.0, and 2.0 phr to monitor the effective inhibition of Gram-negative bacteria and fungi growth. For MPP and PVP-I antimicrobial agents, a loading of 2.0 phr showed good antimicrobial efficacy with the largest zone of inhibition. Simultaneously, ZnO NP demonstrated excellent antimicrobial activity at low concentrations. The addition of antimicrobial agents shows a comparable effect on the mechanical properties of NR latex films. In comparison to control NR latex film (29.41 MPa, 48.49 N/mm), antimicrobial-filled films have significantly greater tensile and tear strengths (MPP (33.84 MPa, 65.21 N/mm), ZnO NP (31.79 MPa, 52.77 N/mm), and PVP-I (33.25 MPa, 50.75 N/mm). In conclusion, the addition of antimicrobial agents, particularly ZnO NP, can be a better choice for NR latex films because they will serve as both an activator and an antimicrobial. In a clinical context, with regard to frequently used medical equipment such as a stethoscope, such an approach offers significant promise to aid infection control.

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Effect of Latex Compound Dwell Time for the Production of Prototyped Biodegradable Natural Rubber Latex Gloves

Cited by 10 publications

References 5 publications

Optimizing natural rubber blends for examination gloves: Vacuum radiation for mechanical strength and solvent barrier

Optimizing natural rubber blends for examination gloves: Vacuum radiation for mechanical strength and solvent barrier

Wearable Natural Rubber Latex Gloves with Curcumin for Torn Glove Detection in Clinical Settings

Natural Rubber (NR) Latex Films with Antimicrobial Properties for Stethoscope Diaphragm Covers

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