Natural rubber

The study described the preparation of composite material through the dispersion of carbon nanotubes (CNTs) decorated with silver nanoparticles (Ag NPs) in the matrix of blending natural rubber (NR) and polyethylene (PE) for use as an antibacterial agent. The FESEM results indicated the uniform and defect-free surface of the synthesized composites.

8p viambani 18-06-2024 2 1   Download

Two heterotrophic nitrifying bacterial strains, D2 and D7 were isolated from an activated sludge of sponges in a laboratory-scale downflow hanging sponge reactor. The aim of this work was to isolate heterotrophic nitrifying bacteria from DHS activated sludges and to determine the ammonium removal efficiency of NRPW using the isolates.

10p viamancio 04-06-2024 1 0   Download

This study presents the functionalization of liquid natural rubber (LNR) by iron-mediated radical chloro-nitration over the LNR backbone, resulting in a chloro-nitro compound of liquid natural rubber (Cl-N-LNR). The chloro-nitration was prepared by a reaction of LNR with iron(III) nitrate nonahydrate and iron(III) chloride in an organic solvent. T

7p dianmotminh02 03-05-2024 3 1   Download

This paper reports on the extraction of microcrystal cellulose from cotton fiber and their application as a reinforcing agent in NR matrix. Microcrystalline cellulose was also grafted with maleic anhydride (MA) so that grafted one can improve interfacial interaction between cellulose and natural rubber. Fillers were incorporated to block natural rubber by two-roll mill dry mixing.

8p dianmotminh02 03-05-2024 2 1   Download

The article will be focused on methods of chemical modification of NR and the use of improved traditional fillers such as carbon black (CB) and silica. Modification reactions include epoxidation, hydrogenation, and grafting vinyl monomers onto NR molecules. Some methods of surface modification of NR film were also reviewed. Thanks to modification the NR degree of unsaturatiton is decrease that leads to its enhanced aging resistance.

15p dianmotminh02 03-05-2024 3 2   Download

Ebook "Rubber science: A modern approach" is an up-to-date text on rubber science and is a breakthrough among many rubber-related publications. Emphasis is placed on the most modern scientific approaches to rubber science, departing from the usual detailed descriptions of trial-and-error results of traditional rubber technology. The book is a good introduction to modern rubber science both for graduate students and for more or less experienced rubber engineers for updating their way of thinking in handling of technological problems.

226p tracanhphuonghoa1007 22-04-2024 4 3   Download

Ebook "In-situ structure characterization of elastomers during deformation and fracture" offers novel insights into the time-dependent structural evolution of polymers under deformation. In-situ tensile experiments at high-brilliance synchrotron sources allowed to characterize the material with unrivaled resolution in time and space. The strain-induced crystallization in natural rubber was studied by wide-angle X-ray diffraction.

134p tudohanhtau1006 29-03-2024 6 1   Download

Part 2 book "Kent and Riegel's handbook of industrial chemistry and biotechnology" includes content: Chemistry in the pharmaceutical industry; manufactured textile fibers; dye application, manufacture of dye intermediates and dyes; the chemistry of structural adhesives - epoxy, urethane, and acrylic adhesives; synthetic resins and plastics; rubber; the agrochemical industry; petroleum and its products; coal technology for power, liquid fuels and chemicals, natural gas,... and other contents.

1495p muasambanhan09 12-03-2024 2 0   Download

Part 1 book "Fundamentals of modern manufacturing - Materials, processes and systems" includes content: The nature of materials; mechanical properties of materials; physical properties of materials; dimensions, surfaces, and their measurement; metals; ceramics; polymers; composite materials fundamentals of metal casting; metal casting processes; glassworking; shaping processes for plastics; rubber processing technology; shaping processes for polymer matrix composites... and other contents.

494p muasambanhan06 03-02-2024 6 1   Download

In ebook "Biology of hevea rubber" the origin, upkeep and latex harvest from the Hevea rubber tree are dealt with succinctly. New chapters have been included on Propagation Systems and Genetic Resources. The importance of Heterozygosis and Breeding is a new theme for the section on Breeding. A new chapter on Genomics and Molecular Breeding that focuses on the latest advancements on gene mapping, marker assisted selection and stimulation has been added.

252p lamquandat 28-12-2023 11 2   Download

The search for viable alternatives to conventional materials in biomedical applications is as important as the movement for the adoption of a sustainability approach in the production of polymer nanocomposites for prosthetic purposes. Carbon nanotube (CNT) reinforced polymer nanocomposites have become the center of the present prosthetic industry due to their unparalleled strength-to-weight characteristics.

17p viberbers 09-08-2023 8 3   Download

Deproteinized natural rubber/graphene oxide (DPNR/GO) nanocomposite was prepared and characterized in the present work. GO was synthesized by oxidation process via Hummer modified method, and it was characterized with X-ray diffraction (XRD), Fourier transform infrared (FT-IR) spectroscopy, nuclear magnetic resonance (NMR), and water contact angle.

7p vihawkeye 26-05-2023 7 3   Download

Rice husk (RH), an inexpensive waste material, was used to produce nanosilica that was then applied to fabricate composite with natural rubber. The optimization of process parameters on the weight of nanosilica using the Taguchi method was performed. Experimental specimens were then made to confirm optimum values for each process parameter.

6p vidoctorstrange 06-05-2023 3 2   Download

In this work, rubber nanocomposites based on natural rubber/ethylene propylene diene monomer (NR/EPDM) blends and reinforced with nanosilica (NS) in combination with carbon black (CB) and barium sulfate (BS) were prepared by melt blending method in a Brabender internal mixer.

12p vidudley 20-02-2023 4 2   Download

Removal of protein from natural rubber was carried out via deproteinization of natural rubber in the latex stage. Then, its effect on the molecular structure and properties of natural rubber was investigated. Urea, SDS, and acetone were used as denaturing agent, a surfactant, and a polar solvent in the deproteinization, respectively.

8p viporsche 25-10-2022 7 3   Download

Preparation and characterization of natural rubber grafted with methyl methacrylate (MMA) and vinytriethoxysilane (VTES) were performed in the present work. Graft copolymerization of methyl methacryate was carried out in latex stage, and VTES was added during the graft copolymerization of MMA.

6p viporsche 25-10-2022 10 4   Download

In this article, the influence of the Mullins effect on NR properties during heat aging and cyclic loading is studied. In addition, the relation between fillers such as CB and silica and crack growth in NR is also investigated.

7p viporsche 25-10-2022 9 4   Download

The study "Application of SARIMA model to forecasting the natural rubber price in the world market" was conducted to develop a forecasting model to predict the price natural rubber in the world market by using the Seasonal Autoregressive Integrated Moving Average (SARIMA).

7p tieuvulinhhoa 22-09-2022 6 3   Download

Characterization of chemical structure and determination of composition of Vietnam commercial natural rubbers (CNR) were carried out to investigate the relationship between structure and properties of natural rubber. Five different grades of CNRs used are SVR10, SVR5, SVR3L, SVRCV50 and SVRCV60. The CNRs films were prepared by solution casting technique following by acetone extraction.

5p vimelindagates 18-07-2022 7 2   Download

This study concluded that natural rubber was a more climatically suitable crop for Nakhon Si Thammarat province, if only the four stated climatic variables were considered.

9p guernsey 28-12-2021 15 0   Download