Radiation dose required for the vulcanization of natural rubber latex

Haque, M. E.; Dafader, N. C.; Akhtar, F.; Ahmad, M. U.

doi:10.1016/0969-806x(96)00002-3

Cited by 39 publications

(16 citation statements)

References 5 publications

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“…It increases from 5.61 to 7.46 MPa with varying composition of grafted rubber from 40 to 70% in the blend at the radiation dose of 8 kGy. It is reported [10] that the modulus of irradiated rubber was obtained 3 MPa at vulcanization dose (12 kGy). Increase in proportion of grafted rubber in blend increases the hard segment given by styrene-grafted rubber chains and homopolymer of styrene.…”

Section: Resultsmentioning

confidence: 98%

“…It is known that with increased cross-link density, tensile strength increases. The maximum tensile strength is obtained at optimum cross-linking of a polymer [10] . The variation of tensile strength is almost unchanged for the range of grafted rubber latex proportion from 40 to 70% in blend at 8 kGy radiation dose.…”

Section: Resultsmentioning

confidence: 99%

“…The values of tensile strength of blend are remained within 30 to 31 MPa. Tensile strength of irradiated rubber [10] was obtained 31 MPa at the radiation dose of 12 kGy. This value of tensile strength is almost similar to that of blend rubber films.…”

Section: Resultsmentioning

confidence: 99%

“…A 5 phr of n-butylacrylate (n-BA) was added to the blend rubber latex as radiation vulcanization accelerator (RVA) to reduce vulcanization dose [10] . It was irradiated with various radiation doses at the dose rate of 5 kGy=h.…”

Section: Irradiation Of Blend Rubber Latexmentioning

confidence: 99%

See 3 more Smart Citations

Study on the Properties of Blend Rubber Between Grafted Rubber Latex and Natural Rubber Latex by Gamma Radiation

Dafader

Haque

Akhtar

et al. 2006

Polymer-Plastics Technology and Engineering

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Blend rubber films were prepared by mixing styrene grafted rubber latex and natural rubber latex (NRL) with varying proportions by gamma radiation from Co-60 source at room temperature. Tensile strength, modulus at 500% elongation, elongation at break, permanent set, and swelling ratio were measured. Tensile strength and modulus at 500% elongation attain maximum at 8 kGy radiation dose for blend rubber films. The increase in tensile strength is insignificant, but modulus increases from 5.61 to 7.46 MPa with increased proportion of grafted rubber latex from 40 to 70% in the blend at this radiation dose. Elongation at break, permanent set, and swelling ratio of blend rubber decreases with increase in radiation dose as well as proportion of grafted rubber.

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Section: Resultsmentioning

confidence: 98%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Irradiation Of Blend Rubber Latexmentioning

confidence: 99%

See 2 more Smart Citations

Study on the Properties of Blend Rubber Between Grafted Rubber Latex and Natural Rubber Latex by Gamma Radiation

Dafader

Haque

Akhtar

et al. 2006

Polymer-Plastics Technology and Engineering

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“…[12][13][14][15][16][17] But it has bad smell and enhances the coagulation of latex. 18,19 The bad smell of RVA pollutes the working environment and may jeopardize the aim of commercialization of the process.…”

mentioning

confidence: 99%

A New Trend in Radiation Vulcanization of Natural Rubber Latex with a Low Energy Electron Beam

Haque

Makuuchi

Mitomo

et al. 2005

Polym J

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ABSTRACT:The natural rubber latex (NRL) was radiation vulcanized under a pilot plant of low energy electron accelerator. Accelerating voltage and maximum beam current of this accelerator are 250 kV and 10 mA respectively. Irradiation on NRL was carried out in a reaction vessel with constant stirring. In order to obtain a suitable setting of experiment for radiation vulcanization with the plant, the parameters such as defoamer concentration, irradiation time, volume of latex, beam current, latex concentration etc. were optimized by varying the individual parameter at a constant set of the other variables. Radiation vulcanization accelerators (RVA) were normal butyl acrylate (n-BA) and nonane-diol-diacrylate (NDDA). Twenty minutes irradiation time is enough to vulcanize 14 L of latex when 5 phr RVA (any type) are used. Maximum tensile strength of the radiation vulcanized NRL films obtained with 5 phr of NDDA or n-BA is $26 MPa. About 30 MPa tensile strength was obtained from the rubber film by irradiating 25% diluted latex for 20 min.

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Toughness and morphology of radiation‐crosslinked natural rubber modified polystyrene

Aiamsen

Paiphansiri

Sangribsub

et al. 2003

Polymer International

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γ‐Radiation vulcanized natural rubber (RVNR)/phase transfer/suspension polymerization technique was used to prepare high‐impact polystyrene (HIPS) in bead form. The high notched Izod impact resistance of HIPS based on RVNR was observed and compared with that of unmodified PS. The impact resistance of HIPS based on RVNR was further enhanced by addition of 10% of polystyrene‐block‐polyisoprene‐block‐polystyrene copolymer. A mesh structure of all crosslinked rubber particles containing polystyrene and long crazes in HIPS were observed under electron microscopy. Copyright © 2003 Society of Chemical Industry

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Radiation dose required for the vulcanization of natural rubber latex

Cited by 39 publications

References 5 publications

Study on the Properties of Blend Rubber Between Grafted Rubber Latex and Natural Rubber Latex by Gamma Radiation

Study on the Properties of Blend Rubber Between Grafted Rubber Latex and Natural Rubber Latex by Gamma Radiation

A New Trend in Radiation Vulcanization of Natural Rubber Latex with a Low Energy Electron Beam

Toughness and morphology of radiation‐crosslinked natural rubber modified polystyrene

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