Function of Factice (Rubber Substitute) in Rubber Compounds

義和, 名井

doi:10.2324/gomu.89.80

Cited by 2 publications

(2 citation statements)

References 8 publications

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“…One striking difference is that, when using the sulfur system (acts only on double bonds), at any oil content, JO produces the more effective plasticizing effect, as a result of the formation of a factice, which generates greater free volume among the polymer molecules, making a greater plasticizing effect. 26 The opposite effect is observed when using the peroxide system: JO produces the less effective plasticizing effect. This latter effect is because the peroxide reacts with EPDM, as well as with the JO, which has a linear structure with double bonds easier to attack by radicals generated in the decomposition of peroxide.…”

Section: Resultsmentioning

confidence: 99%

Jojoba Oil (Simmondsia Chinensis) as a Natural Plasticizer for Ethylene Propylene Diene Monomer Elastomers

Vaillant¹,

Peralta²,

Ramos³

et al. 2019

Ind. Eng. Chem. Res.

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Jojoba oil (JO) as a natural plasticizer for ethylene propylene diene monomer (EPDM) rubber was studied and compared with paraffin oil (PO) at 5, 10, and 20 phr, using sulfur and peroxide cross-linking systems. Vulcanization curves for sulfur systems had the lowest torque value for JO, 26 dNm, whereas for PO, it was 60 dNm. For peroxide systems, the lowest torque value was for PO compounds, 18 dNm, whereas for JO, it was 21 dNm. Stress values for sulfur systems were 12–18 MPa, and for peroxide systems, 14–23 MPa; 23 MPa was for JO compounds. Highest cross-link density values were for sulfur systems with PO >1000 mol/m3. Thermogravimetric analysis indicated volatilization of PO, 250–280 °C and for JO at 400 °C, evidencing better EPDM thermal stability with JO. Results showed a greater plasticizing effect of JO when using sulfur as the cross-linking agent, and its possible use as a renewable plasticizer for EPDM, reducing the concentration of the plasticizer in formulations.

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Section: Resultsmentioning

confidence: 99%

Jojoba Oil (Simmondsia Chinensis) as a Natural Plasticizer for Ethylene Propylene Diene Monomer Elastomers

Vaillant¹,

Peralta²,

Ramos³

et al. 2019

Ind. Eng. Chem. Res.

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“…They are used as valuable processing aids which provide green strength and dimensional stability to rubber compounds. 36,37 The major drawback of reclaiming was severe main chain degradation, whereas reclaiming with softener resulted in leftover oil which required additional extractions for its removal. 5 The untreated oil not only increases the cost of the production but could also causes the migration of oil over time, which may deteriorate the mechanical properties of elastomers.…”

Section: ■ Introductionmentioning

confidence: 99%

Reclaimed Rubber in Situ Grafted with Soybean Oil as a Novel Green Reactive Plasticizer in SBR/Silica Compounds

Hassan

Formela

Wang

2019

ACS Sustainable Chem. Eng.

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Polymer recycling and biodegradable polymeric materials are two major routes toward the sustainable development of polymer materials which contribute to the management of waste. In this regard, an eco-friendly approach is presented wherein a high reclaiming degree of ground tire rubber (GTR) was achieved by low-temperature oxidation under the swollen action of soybean oil. In situ reclaimed GTR with soybean oil was cured into a reactive plasticizer (RP) through a free-radical chain reaction between activated molecular rubber chains and soybean oil. During the curing process, degraded rubber chains were involved in synergistic reactions of recombination to strengthen bound rubber involved with the core–shell structure carbon black and grafting with soybean oil. RP was obtained by modification of highly reclaimed rubber to control leachable oils and to modulate the reaction. Reactive plasticizers are further explored as a multifunctional additive to styrene-butadiene rubber/silica compounds. Reactive plasticizers performed the following three functions toward styrene-butadiene rubber/silica compounds: (i) value-added rubber substitute; (ii) reinforcing filler with the increase in tensile strength maximum up to 112% approximately on account of bound rubber involved with the core–shell structure carbon black; and most importantly, as a (iii) reactive plasticizer.

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Function of Factice (Rubber Substitute) in Rubber Compounds

Cited by 2 publications

References 8 publications

Jojoba Oil (Simmondsia Chinensis) as a Natural Plasticizer for Ethylene Propylene Diene Monomer Elastomers

Jojoba Oil (Simmondsia Chinensis) as a Natural Plasticizer for Ethylene Propylene Diene Monomer Elastomers

Reclaimed Rubber in Situ Grafted with Soybean Oil as a Novel Green Reactive Plasticizer in SBR/Silica Compounds

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