Features of process of epoxidation of natural rubber scrap in water – xylene

The article presents the analysis of the existing methods of producing epoxidized polydiene rubbers in order to obtain new derivative materials with improved physical and mechanical properties. The study proves the use of natural rubber as a raw material for the production of epoxidized polydiene. It has been experimentally demonstrated that conducting epoxidation as a combined-separation process allows producing epoxidized rubber in one reaction volume. It has been also found that the use of a water-xylene environment for the process has a qualitative effect on the degree of epoxidation and significantly reduces power consumption.

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Composites from Thermoplastic Natural Rubber Reinforced Rubberwood Sawdust: Effects of Sawdust Size and Content on Thermal, Physical, and Mechanical Properties

International Journal of Polymer Science ◽

10.1155/2018/7179527 ◽

2018 ◽

Vol 2018 ◽

pp. 1-11 ◽

Cited By ~ 5

Author(s):

Chatree Homkhiew ◽

Surasit Rawangwong ◽

Worapong Boonchouytan ◽

Wiriya Thongruang ◽

Thanate Ratanawilai

Keyword(s):

Mechanical Properties ◽

Tensile Strength ◽

Natural Rubber ◽

High Density Polyethylene ◽

High Performance ◽

Physical And Mechanical Properties ◽

Modulus Of Rupture ◽

Shore Hardness ◽

Thermoplastic Natural Rubber ◽

Plastic Content

The aim of this work is to investigate the effects of rubberwood sawdust (RWS) size and content as well as the ratio of natural rubber (NR)/high-density polyethylene (HDPE) blend on properties of RWS reinforced thermoplastic natural rubber (TPNR) composites. The addition of RWS about 30–50 wt% improved the modulus of the rupture and tensile strength of TPNR composites blending with NR/HDPE ratios of 60/40 and 50/50. TPNR composites reinforced with RWS 80 mesh yielded better tensile strength and modulus of rupture than the composites with RWS 40 mesh. The TPNR/RWS composites with larger HDPE content gave higher tensile, flexural, and Shore hardness properties and thermal stability as well as lower water absorption. The TPNR/RWS composites with larger plastic content were therefore suggested for applications requiring high performance of thermal, physical, and mechanical properties.

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Effect of process parameters and raw material characteristics on physical and mechanical properties of wood pellets made from sugar maple particles

Biomass and Bioenergy ◽

10.1016/j.biombioe.2015.06.010 ◽

2015 ◽

Vol 80 ◽

pp. 338-349 ◽

Cited By ~ 22

Author(s):

Quy Nam Nguyen ◽

Alain Cloutier ◽

Alexis Achim ◽

Tatjana Stevanovic

Keyword(s):

Mechanical Properties ◽

Process Parameters ◽

Sugar Maple ◽

Physical And Mechanical Properties ◽

Raw Material ◽

Wood Pellets ◽

Material Characteristics

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Coconut Oil Plasticizer as a Replacement of Petroleum Oil in Natural Rubber Compound: Physical and Mechanical Properties

Charting the Sustainable Future of ASEAN in Science and Technology ◽

10.1007/978-981-15-3434-8_18 ◽

2020 ◽

pp. 203-213

Author(s):

Farhana Othman ◽

Nismahasyirah Alang Ismail

Keyword(s):

Mechanical Properties ◽

Natural Rubber ◽

Coconut Oil ◽

Physical And Mechanical Properties ◽

Rubber Compound ◽

Petroleum Oil

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Physical and mechanical properties of compounded hydroxylated natural rubber

10.1063/1.5047194 ◽

2018 ◽

Author(s):

Nurul Wahidah Zahari ◽

Ahmad Faiza Mohd ◽

Azemi Samsuri ◽

Dzaraini Kamarun

Keyword(s):

Mechanical Properties ◽

Natural Rubber ◽

Physical And Mechanical Properties

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Physical and mechanical properties of natural rubber modified cement paste

Construction and Building Materials ◽

10.1016/j.conbuildmat.2020.118319 ◽

2020 ◽

Vol 244 ◽

pp. 118319 ◽

Cited By ~ 3

Author(s):

Gampanart Sukmak ◽

Patimapon Sukmak ◽

Suksun Horpibulsuk ◽

Teerasak Yaowarat ◽

Kittipong Kunchariyakun ◽

...

Keyword(s):

Mechanical Properties ◽

Natural Rubber ◽

Cement Paste ◽

Physical And Mechanical Properties

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The Effect of Lithium Alumina Silicate Phases on Elastic Modulus of Porcelain Tiles

Advances in Science and Technology ◽

10.4028/www.scientific.net/ast.92.188 ◽

2014 ◽

Vol 92 ◽

pp. 188-193 ◽

Cited By ~ 1

Author(s):

Tuna Aydin ◽

Alpagut Kara

Keyword(s):

Mechanical Properties ◽

Elastic Modulus ◽

Liquid Phase ◽

Bulk Density ◽

Bending Strength ◽

Physical And Mechanical Properties ◽

Raw Material ◽

Closed Porosity ◽

Low Viscosity ◽

Porcelain Tiles

Spodumene, which is a lithium alumina silicate, has been used as a raw material in the production of thermal shock resistant whitewares and sanitarywares. The presence of spodumene results in enhancement of mullitization and imparts better physical and mechanical properties to ceramics. In this study, the influence of Lithium alumina silicate phases on the mechanical properties of standard porcelain stoneware body was investigated. Especially solid-solid reactions were observed between spodumene and quartz or spodumene and clay. These solid-solid reactions bring about a newly formed lithium alumina silicate (LAS) phases. Spodumene allows the development of a low viscosity liquid phase and results in a decrease in closed porosity, also with increase in bulk density, bending strength and elastic modulus.

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Properties of Natural Rubber Nanocomposites Reinforced with Carbon Nanotubes

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.1109.195 ◽

2015 ◽

Vol 1109 ◽

pp. 195-199 ◽

Cited By ~ 1

Author(s):

Abd Aziz Azira ◽

Dayang Habibah Abangismawi I. Hassim ◽

D. Verasamy ◽

Abu Bakar Suriani ◽

M. Rusop

Keyword(s):

Electron Microscopy ◽

Mechanical Properties ◽

Natural Rubber ◽

Considerable Increase ◽

Physical And Mechanical Properties ◽

Rubber Matrix ◽

Rubber Composites ◽

Transmission Electron ◽

Maximum Conductivity ◽

Polymer Latex

In order to achieve improvements in the performance of rubber materials, the development of carbon nanotube (CNT)-reinforced rubber composites was attempted. The CNT/epoxidised natural rubber (ENR) nanocomposite was prepared through latex technology. Physical and mechanical properties of the CNT/ENR nanocomposites were characterized in contrast to the carbon black (CB)/ENR composite. The dispersion of the CNTs in the rubber matrix and interfacial bonding between them were rather good; monitored transmission electron microscopy and scanning electron microscopy. The mechanical properties of the CNT-reinforced ENR showed a considerable increase compared to the neat ENR and traditional CB/ENR composite. The storage modulus of the CNT/ENR nanocomposites greatly exceeds that of neat ENR and CB/ENR composites and a maximum conductivity of about 1 S m-1 can be achieved. The approach presented can be adapted to other CNT/polymer latex systems.

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The effect of raw material selection on physical and mechanical properties of wood plastic composites made from recycled LDPE and wood from invasive trees in South Africa

Wood Material Science and Engineering ◽

10.1080/17480272.2019.1635207 ◽

2019 ◽

pp. 1-6

Author(s):

James B. Acheampong ◽

Marco de Angelis ◽

Andreas Krause ◽

Martina Meincken

Keyword(s):

Mechanical Properties ◽

South Africa ◽

Material Selection ◽

Physical And Mechanical Properties ◽

Raw Material ◽

Wood Plastic Composites ◽

Plastic Composites ◽

Invasive Trees ◽

Raw Material Selection

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Mechanical Properties of Natural Rubber and Chloroprene Rubber Latex Blends

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.239-242.1601 ◽

2011 ◽

Vol 239-242 ◽

pp. 1601-1604 ◽

Cited By ~ 1

Author(s):

Xiao Xue Liao ◽

Hai Sheng Tan ◽

Ming Chao Luo ◽

Bing Tang ◽

Shuang Quan Liao ◽

...

Keyword(s):

Mechanical Properties ◽

Natural Rubber ◽

Natural Rubber Latex ◽

Physical And Mechanical Properties ◽

Epoxidized Natural Rubber ◽

Latex Film ◽

Rubber Latex ◽

Oil Resistance ◽

Chloroprene Rubber

The effects of the ratios of natural rubber latex (NRL)and chloroprene rubber latex(CRL) and the type of compatibilizer on physical and mechanical properties of latex film were researched.The oil resistance of vulcanized latex film was tested. The compatibility of the latex blends was also analyzed by TG/DTG method.The results showed that properties of latex film were best when ratio of NRL/CRL was 75/25. As the CRL content increased, oil resistance of latex film was improved. Epoxidized natural rubber latex improved compatibility of NRL and CRL blends.

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SYNERGISTIC REINFORCEMENT OF ORGANOCLAY AND DOUBLE NETWORKING IN NATURAL RUBBER

Rubber Chemistry and Technology ◽

10.5254/rct.13.88909 ◽

2013 ◽

Vol 86 (2) ◽

pp. 205-217 ◽

Cited By ~ 2

Author(s):

Hedayatollah Sadeghi Ghari ◽

Zahra Shakouri

Keyword(s):

Electron Microscopy ◽

Mechanical Properties ◽

Natural Rubber ◽

Physical And Mechanical Properties ◽

X Ray Diffraction ◽

Double Network ◽

X Ray ◽

Extension Ratio ◽

Curing Characteristics ◽

Scanning Electron

ABSTRACT Research was undertaken on natural rubber (NR) nanocomposites with organoclays. A double-network (DN) structure is formed when a partially cross-linked elastomer is further cross-linked during a state of strain. Two methods were used in the preparation of NR/organoclay nanocomposites: the ordinary method (single-network NR nanocomposite) and double-networked NR (DN-NR) nanocomposites. The single-networked NR nanocomposites were used for comparison. The effects of organoclay (5 phr) with a different extension ratio on curing characteristics, mechanical properties, hardness, swelling behavior, and morphology of single- and double-networked NR nanocomposites were studied. The results showed that double-networked NR nanocomposites exhibited higher physical and mechanical properties. The tensile strength of DN-NR nanocomposites increased up to 33 MPa (more than four times greater than that of pure NR) and then decreased with an increasing extension ratio. Modulus and hardness continuously increased with an increased extension ratio. The microstructure of the NR/organoclay systems was studied by X-ray diffraction and field emission scanning electron microscopy. The effects of different extension ratios on the dispersion of organoclay layers in the nanocomposites were investigated. Generally, results showed that the optimized extension ratio in DN nanocomposites was equal (or about or around) to α= 2.

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