Synthesis of monodispersed polyisoprene–silica nanoparticles via differential microemulsion polymerization and mechanical properties of polyisoprene nanocomposite

Kongsinlark, Anong; Rempel, Garry L.; Prasassarakich, Pattarapan

doi:10.1016/j.cej.2012.04.008

Cited by 51 publications

(52 citation statements)

References 37 publications

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“…The difference between M H -M L is a measure of the shear dynamic modulus that indirectly relates to the state of cure or crosslink density of the NR/EPDM rubber blends [17,21]. It is also the extent of vulcanization and attainment of a characteristic network chains [52].…”

Section: Processability Evaluation Of Nr/epdm Blends By Cure Charactementioning

confidence: 99%

“…Over the past few years, many researchers have employed natural rubber (NR) and ethylene-propylenediene-monomer (EPDM) synthetic rubber for the preparation of elastomeric blends [16][17][18][19][20][21][22][23]. Vulcanized NR/ EPDM blend systems have been extensively studied because of their superior performance in tire application, as well as a significant improvement in heat and ozone resistance [22].…”

Section: Introductionmentioning

confidence: 99%

“…Despite having an attractive range of properties, excellent mechanical strength and elasticity, as well as good processing characteristic, the NR is highly unsaturated and is chemically reactive [13,21,24,25]. Hence, NR rubber is highly susceptible to degradation and is very sensitive to environmental factors such as oxygen attack by ozone, light, moisture, humidity, radiation, and heat [17,24,25].…”

Section: Introductionmentioning

confidence: 99%

“…The presence of numerous functional fillers in NR/ EPDM blends enhances the engineering properties and its functionalities [17,19,20,22]. The addition of inorganic nanoparticles into an elastomeric blend is seen as interesting and straightforward since it can absorb strongly at the blend's interface and consequently is able to stabilize it [22].…”

Section: Introductionmentioning

confidence: 99%

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Effects of poly(ethyleneimine) adsorption on graphene nanoplatelets to the properties of NR/EPDM rubber blend nanocomposites

et al. 2015

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The facile approach of non-covalent surface treatment utilizing poly(ethyleneimine) (PEI) polymer was applied to modify graphene nanoplatelets (GNPs). The effects of surface modification and various GNPs-PEI loadings to cure characteristic, mechanical, physical, and morphological properties of natural rubber (NR)/ethylenepropylene-diene-monomer (EPDM) blend nanocomposites were studied and compared to the unfilled NR/EPDM blend and blends filled with unmodified GNPs at similar loadings. We found that the modification of GNPs surface significantly influences the properties of NR/EPDM blends. The addition of GNPs significantly improved the blend's processability, offering approximately a 104.30 % increase in tensile strength obtained with the addition of 5.00 wt% GNPs-PEI. A reduced swelling index of Q f /Q g in parallel with an increase in modified GNPs-PEI content revealed enhancements in terms of rubber-filler interactions between the NR/EPDM matrix and GNPs. These findings were further supported by X-ray diffraction, differential scanning calorimetry, thermogravimetry analysis, and fracture morphology by scanning electron microscope.

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Section: Processability Evaluation Of Nr/epdm Blends By Cure Charactementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Effects of poly(ethyleneimine) adsorption on graphene nanoplatelets to the properties of NR/EPDM rubber blend nanocomposites

et al. 2015

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“…According to work of C. Hazara and coworkers 4 and A. Kongsinlark and coworkers 5 , size of core-shell particles were influenced by content of core and shell materials and surfactant content for admicelled particles. In this work, all of those factors were fixed.…”

Section: Sem Images Inmentioning

confidence: 99%

Preparation of bioplastic copolymer as surface modifier on NR latex particles

Wongphonchai¹,

Magaraphan²

2016

AIP Conference Proceedings

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Thermal and mechanical properties of bioplastic poly(lactic acid) compounded with silicone rubber and talc AIP Conference Proceedings 1713, 080005 (2016) Abstract. Natural rubber particles were separated from its latex and dispersed in CTAB aqueous solution pH8. The particles were used as substrates for admicellar polymerization of polycaprolactone-co-polylactide (PCL-co-PLA). TEM revealed the core-shell structure of PCL-co-PLA shell covered NR core particles. FTIR spectra of the extracted shell layer showed characteristic peaks of PCL and PLA. By fixing the equal amount of co-monomers (50:50 mM caprolactone:lactide), initiator content was varied from 0.5 to 2.0 mM per 100 mM co-monomers. The optical microscope showed good covering of the copolymer shell on the NR particles for all initiator content. FTIR reveals insignificant change in absorption intensity with the initiator content. Thermal properties obtained from TGA test demonstrated the well-superposed thermograms of all samples. Their decomposition temperature at onset was about 349 °C. Surface modification is necessary for improving compatibility.

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