Natural rubber latex foam with particulate fillers for carbon dioxide adsorption and regeneration

Panploo, Krittaya; Chalermsinsuwan, Benjapon; Poompradub, Sirilux

doi:10.1039/c9ra06000f

Cited by 21 publications

(10 citation statements)

References 49 publications

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“…The MC concentration had an obvious effect on the absorption level and the optimum MC concentration was 2% generating the highest adsorption capacities for some organic solvents. In another work, Panploo and coworkers developed an eco-friendly NR latex foam to adsorb CO 2 gas under environmental temperature and pressure [ 302 ]. They used two different methods including overhead stirrer (OS) or cake mixer (CM) to produced NR latex foams.…”

Section: Applications Of Rubber Foamsmentioning

confidence: 99%

Chemistry, Processing, Properties, and Applications of Rubber Foams

Rostami‐Tapeh‐Esmaeil

Vahidifar

Esmizadeh

et al. 2021

Polymers

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With the ever-increasing development in science and technology, as well as social awareness, more requirements are imposed on the production and property of all materials, especially polymeric foams. In particular, rubber foams, compared to thermoplastic foams in general, have higher flexibility, resistance to abrasion, energy absorption capabilities, strength-to-weight ratio and tensile strength leading to their widespread use in several applications such as thermal insulation, energy absorption, pressure sensors, absorbents, etc. To control the rubber foams microstructure leading to excellent physical and mechanical properties, two types of parameters play important roles. The first category is related to formulation including the rubber (type and grade), as well as the type and content of accelerators, fillers, and foaming agents. The second category is associated to processing parameters such as the processing method (injection, extrusion, compression, etc.), as well as different conditions related to foaming (temperature, pressure and number of stage) and curing (temperature, time and precuring time). This review presents the different parameters involved and discusses their effect on the morphological, physical, and mechanical properties of rubber foams. Although several studies have been published on rubber foams, very few papers reviewed the subject and compared the results available. In this review, the most recent works on rubber foams have been collected to provide a general overview on different types of rubber foams from their preparation to their final application. Detailed information on formulation, curing and foaming chemistry, production methods, morphology, properties, and applications is presented and discussed.

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Section: Applications Of Rubber Foamsmentioning

confidence: 99%

Chemistry, Processing, Properties, and Applications of Rubber Foams

Rostami‐Tapeh‐Esmaeil

Vahidifar

Esmizadeh

et al. 2021

Polymers

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“…New applications of the NR latex foam rubbers allow their use as absorbent materials for oils and carbon dioxide (CO 2 ). NR latex foam rubber filled with silica can serve as a CO 2 absorbing material [ 21 ].…”

Section: Introductionmentioning

confidence: 99%

Study of the Mechanical, Sound Absorption and Thermal Properties of Cellular Rubber Composites Filled with a Silica Nanofiller

Pöschl

Vašina

2021

Materials

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This paper deals with the study of cellular rubbers, which were filled with silica nanofiller in order to optimize the rubber properties for given purposes. The rubber composites were produced with different concentrations of silica nanofiller at the same blowing agent concentration. The mechanical, sound absorption and thermal properties of the investigated rubber composites were evaluated. It was found that the concentration of silica filler had a significant effect on the above-mentioned properties. It was detected that a higher concentration of silica nanofiller generally led to an increase in mechanical stiffness and thermal conductivity. Conversely, sound absorption and thermal degradation of the investigated rubber composites decreased with an increase in the filler concentration. It can be also concluded that the rubber composites containing higher concentrations of silica filler showed a higher stiffness to weight ratio, which is one of the great advantages of these materials. Based on the experimental data, it was possible to find a correlation between mechanical stiffness of the tested rubber specimens evaluated using conventional and vibroacoustic measurement techniques. In addition, this paper presents a new methodology to optimize the blowing and vulcanization processes of rubber samples during their production.

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“…2 . We found that all the foam samples exhibited the open–cell structure with heterogeneous sizes of bubble (heterogeneous pore size), a known effect of the Dunlop process 34 , 35 . However, the amount of NR matrix present affects the morphological properties of the foam samples.…”

Section: Resultsmentioning

confidence: 86%

Current challenges in thermodynamic aspects of rubber foam

Suethao

Ponloa

Phongphanphanee

et al. 2021

Sci Rep

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Natural rubber (NR) foam can be prepared by the Dunlop method using concentrated natural latex with chemical agents. Most previous studies have focused on the thermodynamic parameters of solid rubber in extension. The main objective of this study is to investigate the effect of the NR matrix concentration on the static and dynamic properties of NR foams, especially the new approach of considering the thermodynamic aspects of NR foam in compression. We found that the density and compression strength of NR foams increased with increasing NR matrix concentration. The mechanical properties of NR foam were in agreement with computational modelling. Moreover, thermodynamic aspects showed that the ratio of internal energy force to the compression force, Fu/F, and the entropy, S, increased with increasing matrix concentration. The activation enthalpy, ∆Ha, also increased with increasing matrix concentration in the NR foam, indicating the greater relaxation time of the backbone of the rubber molecules. New scientific concepts of thermodynamic parameters of the crosslinked NR foam in compression mode are proposed and discussed. Our results will improve both the knowledge and the development of rubber foams based on the structure–properties relationship, especially the new scientific concept of the thermodynamical parameters under compression.

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Natural rubber latex foam with particulate fillers for carbon dioxide adsorption and regeneration

Cited by 21 publications

References 49 publications

Chemistry, Processing, Properties, and Applications of Rubber Foams

Chemistry, Processing, Properties, and Applications of Rubber Foams

Study of the Mechanical, Sound Absorption and Thermal Properties of Cellular Rubber Composites Filled with a Silica Nanofiller

Current challenges in thermodynamic aspects of rubber foam

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