Reinforcing effect of organoclay in nitrile rubber - Effect of mill mixing and latex stage mixing

Bhadran, Bhavya; Vijayan, D.; George, Neena; Chandra, C.S. Julie; Begum, Pakiza; Joseph, Rani

doi:10.1016/j.clay.2018.07.027

Cited by 20 publications

(10 citation statements)

References 54 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Notably, the model fails to capture the nonlinear rise of the elastic modulus with increasing filler loading. This is congruent with other works [41], [56]. The reason for this behavior may be attributed to greater interaction between the matrix and the nanoclay at lower filler loading whereas nanoclay agglomerations increase at higher filler loadings, causing reduced adhesion between the matrix and the nanoclay [41].…”

Section: Ji Et Al Modelsupporting

confidence: 91%

“…Modified Guth model: This model describes a progressive increasing on modulus similar to the experimental data, yet it tends to significantly overestimate the rubber clay nanocomposite modulus. Similar results have been seen in [28], [29], [41]. The modified Guth model assumes filler particles to be randomly orientated in the nanocomposite matrix.…”

Section: B Comparison Of Experimental Data and Theoretical Modelssupporting

confidence: 79%

See 1 more Smart Citation

Comparison Of The Elastic Modulus Of Elastomer Clay Nanocomposites Predicted By Various Mechanical Models

Dua¹,

Mertiny²

2021

Progress in Canadian Mechanical Engineering. Volume 4

View full text Add to dashboard Cite

Nanoclays are considered as an ideal filler for polymer materials owing to their versatility, low cost, high aspect ratio, large surface area, cross-linking behavior and cation exchange capacity. When compared with conventional composites, clay/polymer nanocomposites exhibit enhanced diffusional barrier, fire retardant, ultraviolet resistant and mechanical properties. The elastic modulus reflects the ability of a material to resist elastic deformation and is thus an important parameter that characterizes the material mechanical properties. Its accurate prediction plays an important role in material design to tailor a material to suit a given application. A broad variety of analytical as well as numerical work has been performed to investigate the elastic modulus of clay reinforced polymer composites. The present paper carries out a review and comparison between various analytical models reported in the technical literature that take fundamentally different approaches for predicting the elastic modulus, namely, the Guth and modified Guth model, the Halpin-Tsai model and modified Halpin-Tsai model, the model by Ji et al., the Hui-Shia model, and the effective modulus model. Elastic modulus predictions from these models for clay/elastomer composites are contrasted and discussed taking into consideration experimental data from the technical literature.

show abstract

Section: Ji Et Al Modelsupporting

confidence: 91%

Section: B Comparison Of Experimental Data and Theoretical Modelssupporting

confidence: 79%

Comparison Of The Elastic Modulus Of Elastomer Clay Nanocomposites Predicted By Various Mechanical Models

Dua¹,

Mertiny²

2021

Progress in Canadian Mechanical Engineering. Volume 4

View full text Add to dashboard Cite

show abstract

“…Selected quantities of blending recipes in parts per hundred-part of rubber (pphr) consisting of 100 pphr NBR latex, 1.0 pphr of ZnO and ZDEC each, 0.5 pphr ZMBT, GO loading varied as 0.5, 1.0, 1.5, and 2.0 pphr, and lastly, 1.0 pphr sulphur was added into a beaker. The amount of compounding chemicals was chosen based on previous reported works on NBR latex film productions [ 34 , 35 ]. The compound was then stirred at a speed of 350 rpm for 30 min with IKA overhead stirrer model EUROSTAR Digital 20 supplied by IKA Works Asia, Rawang, Selangor, Malaysia.…”

Section: Methodsmentioning

confidence: 99%

Development of Environment-Friendly Membrane for Oily Industrial Wastewater Filtration

et al. 2021

View full text Add to dashboard Cite

Latex phase blending and crosslinking method was used in this research work to produce nitrile butadiene rubber-graphene oxide (NBR-GO) membranes. This fabrication technique is new and yields environmentally friendly membranes for oil-water separation. GO loading was varied from 0.5 to 2.0 part per hundred-part rubber (pphr) to study its effect on the performance of NBR-GO membrane. GO was found to alter the surface morphology of the NBR matrix by introducing creases and fold on its surface, which then increases the permeation flux and rejection rate efficiency of the membrane. X-Ray diffraction analysis proves that GO was well dispersed in the membrane due to the non-existence of GO fingerprint diffraction peak at 2θ value of 10–12° in the membrane samples. The membrane filled with 2.0 pphr GO has the capability to permeate 7688.54 Lm−2 h−1 water at operating pressure of 0.3 bar with the corresponding rejection rate of oil recorded at 94.89%. As the GO loading increases from 0.5 to 2.0 pphr, fouling on the membrane surface also increases from Rt value of 45.03% to 87.96%. However, 100% recovery on membrane performance could be achieved by chemical backwashing.

show abstract

“…Sulfur was added lastly to the compound and the loading of sulfur was varied as 0.5, 1.0 and 1.5 phr. The ratio of compounding ingredients is selected based on the literature review where the common loading of accelerators, activators and crosslinking agents in NBR films was adapted [35,36]. At the same time as the ingredients were added, the compound was stirred using IKA overhead stirrer model EUROSTAR Digital 20 supplied by IKA Works Asia Sdn.…”

Section: Preparation Of Nbr/go Membranesmentioning

confidence: 99%

Latex-Based Membrane for Oily Wastewater Filtration: Study on the Sulfur Concentration Effect

et al. 2021

View full text Add to dashboard Cite

Nitrile butadiene rubber (NBR) latex/graphene oxide (GO) membranes were fabricated through a latex compounding and curing method which is a relatively new method to produce membranes for wastewater treatment. Hence, the steps in the production of the membrane through this new approach need to be evaluated to optimize the performance of the membrane. In this paper, the effect of sulfur loading in the range of 0.5 to 1.5 parts per hundred rubber (phr) on the morphology, crosslink density, tensile properties, permeation flux and oil rejection rate performance of NBR/GO membranes was studied. The sulfur loading was found to influence the surface morphology and integrity of the membrane which in turn affects the performance of the membrane in terms of strength, water flux and rejection rate of oil. Inaccurate sulfur loading produced a membrane with micro cracks, low surface area for filtration and could not withstand the filtration pressure. In this research work, the membrane with 1.0 phr sulfur provides the highest water flux value and oil rejection rate of 834.1 L/m2·hr and 92.23%, respectively. Surface morphology of 1.0 phr sulfur-loaded membrane revealed the formation of continuous membrane with high structural integrity and with wrinkles and folded structure. Furthermore, micro cracks and a less effective surface area for filtration were observed for membranes with 0.5 and 1.5 phr sulfur loading.

show abstract

Reinforcing effect of organoclay in nitrile rubber - Effect of mill mixing and latex stage mixing

Cited by 20 publications

References 54 publications

Comparison Of The Elastic Modulus Of Elastomer Clay Nanocomposites Predicted By Various Mechanical Models

Comparison Of The Elastic Modulus Of Elastomer Clay Nanocomposites Predicted By Various Mechanical Models

Development of Environment-Friendly Membrane for Oily Industrial Wastewater Filtration

Latex-Based Membrane for Oily Wastewater Filtration: Study on the Sulfur Concentration Effect

Contact Info

Product

Resources

About