Abstract:Latex compounding which incorporates various types of clays as filler to the rubber can significantly give reinforcement in the rubber matrix when rubber/clay nanocomposites are formed, but the filler agglomerates. Thus, study was conducted by using Kaolin clay as the filler in the rubber nanocomposites with silane coupling agent to functionalize the surface of the filler. This study was done in order to investigate the mechanical properties of various functionalized Kaolin in latex nanocomposites, to … Show more
“…Thus, it requires higher stress to elongate and rupture the sample, which gives high elongation at the break value. 9 Overall, most of the XNBR/ESD 086 samples show lower properties of elongation at break (except for XNBR/ESD 086B-5, XNBR/ESD 086C-5 and XNBR/ESD 086C-15 samples) and M100% than the control sample. However, all the tested samples follow the standard requirement by ASTM D6319, in which the minimum tensile strength is 14 MPa and elongation at break is 500%.…”
Section: Resultsmentioning
confidence: 84%
“…The cracks’ surface formation is due to the phase separation between the filler and the rubber matrix . 9,19–22 Moreover, the rough fractured surface designates stronger interfacial adhesion between the filler and XNBR matrix. 23 Figure 7.SEM images of fracture surface of (a) XNBR, (b) XNBR/ESD 086A-15, (c) XNBR/ESD 086A-15 with 0.6:0.6 (phr) of ECD 011:ZnO.…”
Section: Resultsmentioning
confidence: 99%
“…The cracks' surface formation is due to the phase separation between the filler and the rubber matrix . 9,[19][20][21][22] Moreover, the rough fractured surface designates stronger interfacial adhesion between the filler and XNBR matrix. 23…”
Utilization of silicate minerals fillers in latex offer dual function as a compatible filler and cheapener that economical way to reduce latex consumption. This research explores the effect of using Engineered Silicate Composite Dispersion (ESD 086) as fillers for nitrile latex-supported gloves, seeking to explore their properties while ensuring cost-effectiveness. The reinforcement effect of novel Engineered Carbonate Dispersion (ECD 011) for ESD 086 filled Carboxylated Nitrile Butadiene Rubber (XNBR/ESD 086) latex films has also been explored. XNBR latex films were compounded with three variants of ESD 086 at different loadings (in phr). From three variants of ESD 086 fillers, variant ESD 086A at 10 phr shows the highest tensile strength. As the ESD 086A filler loading increased up to 15 phr, the tensile strength decreased, indicating the ineffectiveness to be used at higher loading. The work was continued by exploring the use of novel ECD 011 to minimize the decrement effect. The 15 phr ESD 086 filled XNBR latex films (XNBR/ESD 086A-15) were subjected to a hybrid loading from 0 to 1.2 phr with 0.2 phr staggered increment together with the reduction of ECD 011:ZnO ratio in the XNBR latex compounds. Results show that at 0.6:0.6 phr of ECD 011:ZnO, the tensile strength of XNBR/ESD 086A-15 latex films increased and the elongation at break also improved. Using ESD 086A can reduce the usage of XNBR latex. Still, it can only be used up to 10 phr (optimum loading) and ECD 011 can maintain the physical properties and offer maximum cost-saving options for XNBR latex glove formulation at higher loading of ESD fillers. Overall, both engineered dispersions offer potential commercial benefits for the Nitrile gloves industry.
“…Thus, it requires higher stress to elongate and rupture the sample, which gives high elongation at the break value. 9 Overall, most of the XNBR/ESD 086 samples show lower properties of elongation at break (except for XNBR/ESD 086B-5, XNBR/ESD 086C-5 and XNBR/ESD 086C-15 samples) and M100% than the control sample. However, all the tested samples follow the standard requirement by ASTM D6319, in which the minimum tensile strength is 14 MPa and elongation at break is 500%.…”
Section: Resultsmentioning
confidence: 84%
“…The cracks’ surface formation is due to the phase separation between the filler and the rubber matrix . 9,19–22 Moreover, the rough fractured surface designates stronger interfacial adhesion between the filler and XNBR matrix. 23 Figure 7.SEM images of fracture surface of (a) XNBR, (b) XNBR/ESD 086A-15, (c) XNBR/ESD 086A-15 with 0.6:0.6 (phr) of ECD 011:ZnO.…”
Section: Resultsmentioning
confidence: 99%
“…The cracks' surface formation is due to the phase separation between the filler and the rubber matrix . 9,[19][20][21][22] Moreover, the rough fractured surface designates stronger interfacial adhesion between the filler and XNBR matrix. 23…”
Utilization of silicate minerals fillers in latex offer dual function as a compatible filler and cheapener that economical way to reduce latex consumption. This research explores the effect of using Engineered Silicate Composite Dispersion (ESD 086) as fillers for nitrile latex-supported gloves, seeking to explore their properties while ensuring cost-effectiveness. The reinforcement effect of novel Engineered Carbonate Dispersion (ECD 011) for ESD 086 filled Carboxylated Nitrile Butadiene Rubber (XNBR/ESD 086) latex films has also been explored. XNBR latex films were compounded with three variants of ESD 086 at different loadings (in phr). From three variants of ESD 086 fillers, variant ESD 086A at 10 phr shows the highest tensile strength. As the ESD 086A filler loading increased up to 15 phr, the tensile strength decreased, indicating the ineffectiveness to be used at higher loading. The work was continued by exploring the use of novel ECD 011 to minimize the decrement effect. The 15 phr ESD 086 filled XNBR latex films (XNBR/ESD 086A-15) were subjected to a hybrid loading from 0 to 1.2 phr with 0.2 phr staggered increment together with the reduction of ECD 011:ZnO ratio in the XNBR latex compounds. Results show that at 0.6:0.6 phr of ECD 011:ZnO, the tensile strength of XNBR/ESD 086A-15 latex films increased and the elongation at break also improved. Using ESD 086A can reduce the usage of XNBR latex. Still, it can only be used up to 10 phr (optimum loading) and ECD 011 can maintain the physical properties and offer maximum cost-saving options for XNBR latex glove formulation at higher loading of ESD fillers. Overall, both engineered dispersions offer potential commercial benefits for the Nitrile gloves industry.
“…4,5 The principles of nanotechnology and nanocomposites can be implemented to tune various properties of latex. 6 Polymer nanocomposites are usually produced using a variety of techniques, including melt intercalation, in-situ polymerization, solution intercalation, and latex compounding. 7 The final properties of the polymer nanocomposites depend on the intrinsic behaviour of the polymer matrix, type of nanofiller, distribution and dispersion of the nanofiller, as well as the interaction between the polymer and the nanofiller.…”
The demand for gloves (e.g., disposable gloves, medical gloves) is increasing due to the Coronavirus disease 2019 (COVID-19) pandemic. Stability in the supply chain in the glove industry is important, and thus strategies are used to solve the problem of the shortage of nitrile gloves. The blending of nitrile butadiene rubber (NBR) with polyurethane (PU) and the use of the nanocomposite concept is among the feasible approaches. The present study aims to investigate the effects of nanokaolin (NK) on the tensile and chemical properties of carboxylated nitrile butadiene rubber (NBR)/polyurethane (PU) latex blends. Three different loadings of NK (10, 20, and 30 parts per hundred rubber) were added to the NBR/PU (at a blending ratio of 85/15). The zeta potential showed that all the NBR compounds exhibit good colloidal stability. The incorporation of NK increased the crosslink density and tensile strength of the NBR/PU latex blends. The highest tensile strength was achieved when the NK loading was 20 phr. All the NBR blends and nanocomposites (NBR/PU-based) possess tensile properties that fulfill the requirements for glove application. The chemical resistance of NBR compounds was increased by the incorporation of NK due to the higher crosslink density and barrier properties contributed by the NK.
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