Tensile properties and interfacial adhesion of silicone rubber/polyethylene blends by reactive blending

Morishita, Kana; Saito, Hiromu

doi:10.1002/app.46192

Cited by 20 publications

(11 citation statements)

References 46 publications

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“…From Figure 10b, the tensile strength increases from 1.31 to 3.00 MPa and the elongation at break increases by 100.8%, when the t p is extended to 16 min. This is because the cellular structure plays an important roles in the tensile properties of foams 39,40 . The effect of T s and t p on the tensile properties of microcellular PVMQ foams is consistent with the effect of T s and t p on the cell size of microcellular PVMQ foams as shown in Figure 9.…”

Section: Resultssupporting

confidence: 82%

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Effects of scCO₂ foaming process and post‐vulcanization method on cellular structure, mechanical properties, and thermal stability of PMVQ foams

Min

Chen

Luo

et al. 2022

J of Applied Polymer Sci

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In this paper, the microcellular foam materials of methyl vinyl phenyl silicone rubber (PVMQ) were prepared by supercritical foaming technology (SFT) and high temperature compression molding. The effect of supercritical carbon dioxide (scCO2) on the vulcanizing properties of PVMQ composite was investigated because vulcanization of microcellular PVMQ foams played an important role on the cellular structure and mechanical properties. It was found that the sulfurization reaction of PVMQ composite was inhibited by scCO2, which led to reduction of apparent activation energy (Ea) of PVMQ composite. Compared with the existing post‐vulcanization process, the introduction of the high temperature molding can effectively improve the degree of vulcanization of microcellular PVMQ foams, which can solve the problem that the cellular structure will be destroyed during the application of external force. What's more, the mechanical properties of microcellular PVMQ foam were obviously improved. The maximum value of tensile strength and the compressive strength of microcellular PVMQ foam with the high temperature molding respectively increase by 34.7% and 133.3% compared with that of microcellular PVMQ foams with existing post‐vulcanization.

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Section: Resultssupporting

confidence: 82%

“…This is because the cellular structure plays an important roles in the tensile properties of foams. 39,40 The effect of T s and t p on the tensile properties of microcellular PVMQ foams is consistent with the effect of T s and t p on the cell size of microcellular PVMQ foams as shown in Figure 9.…”

Section: Mechanical Properties Of the Microcellular Pvmq Foamssupporting

confidence: 85%

Effects of scCO₂ foaming process and post‐vulcanization method on cellular structure, mechanical properties, and thermal stability of PMVQ foams

Min

Chen

Luo

et al. 2022

J of Applied Polymer Sci

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show abstract

“…It may be that the cellular structure has an important effect on the tensile properties of foams. [ 38,39 ] The effect of P s and T s on the mechanical properties of the foams is consistent with the effect of P s and T s on the cellular structure of foams as shown Figure 11. Moreover, the mechanical properties of microcellular SR/EPDM foams in this paper are higher than those of EPDM foams reported in existing literature.…”

Section: Resultssupporting

confidence: 82%

Mechanical Properties of Silicone Rubber Enhanced Microcellular EPDM Foams Based on Supercritical CO₂Foaming Technology

Wen

Min

Luo

et al. 2021

Macro Materials & Eng

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Microcellular ethylene‐propylene‐diene monomer (EPDM) foams derived from miniaturizing the cellular structure can improve mechanical properties of traditional EPDM foams. It is a current challenge that microcellular EPDM foams prepared by supercritical CO2 foaming technology cannot undergo the post‐crosslinking process due to the disappearance of cellular structure, which strongly restricts the development of the mechanical properties of EPDM foams. Hence, a scalable and blending route by selecting the silicone rubber (SR) with different crosslinking temperature compared to EPDM is developed to improve mechanical properties of EPDM foams. During the pre‐crosslinking process of EPDM, SR forms a complete crosslinking network, which can make up for the strength of EPDM without the post‐crosslinking. Meanwhile, the silica can reduce the domain size of SR and enhance the compatibility between EPDM and SR. As expected, the addition of SR improves the storage modulus, viscosity and matrix strength of EPDM, which shows enhanced mechanical properties of EPDM foams. When the foam density is basically the same, the tensile strength and compressive strength of SR/EPDM foam are increased by 461% and 283% respectively compared with that of EPDM foam. Finally, the maximum tensile strength and compressive strength (40% strain) of SR/EPDM foam achieves 3.58 MPa and 0.59 MPa, respectively.

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“…The depletion of the tensile strain to failure of the blends with increasing lignin content is attributable to the rigid molecular structure of oligomeric lignin, which is very brittle, as opposed to the soft and flexible molecular architecture of the PEGM resin, which is highly extensible (strain to failure of ∼1000%). The tensile strengths of our lignin/PEGM materials are similar to those of low density polyethylene, silicone elastomers, and other biopolymer-based materials. − However, as opposed to traditional polymers, lignin has unique antimicrobial and antioxidant properties; , thus, when blended with PEGM, the resulting material is expected to have good resistance to photo- and thermo-oxidative degradation and microbial attacks.…”

Section: Resultsmentioning

confidence: 74%

Butanol-Based Organosolv Lignin and Reactive Modification of Poly(ethylene-glycidyl methacrylate)

Ghosh

Kim

Rajan

et al. 2019

Ind. Eng. Chem. Res.

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Biomass processing industries and modern society are both interested in environmentally friendly plantbased polymers, such as lignin, to replace petrochemical derivatives. In this study, an n-butanol-based solvent system that can be produced through fermentation of cellulosic biomass, was used to fractionate hybrid poplar and isolate high purity lignin. The resulting unique glassy lignin fraction exhibited good melt-flow characteristics but poor mechanical behavior. Therefore, to produce a reusable and tough thermoplastic material, the lignin was reactively blended with glycidyl methacrylate modified polyethylene plastic using a high shear melt-mixing technique at 170 °C. Mechanical and rheological analyses revealed that the reactively processed blends with 30 wt % lignin have good compatibility between both polymers. Scanning electron microscopy, dynamic mechanical thermal analysis, and infrared spectroscopy data indicated improved interaction between lignin and the functional polyethylene matrix. The blends exhibited a thermal relaxation in the temperature range of 10 to 20 °C, because of the branched glycidyl methacrylate moiety. The optimal composition, consisting of 30% lignin, exhibited ∼10 MPa tensile strength with 50% strain to failure; such a lignin-modified polymer may find use as packaging, as textile coatings, and in various horticultural applications.

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Tensile properties and interfacial adhesion of silicone rubber/polyethylene blends by reactive blending

Cited by 20 publications

References 46 publications

Effects of scCO₂ foaming process and post‐vulcanization method on cellular structure, mechanical properties, and thermal stability of PMVQ foams

Effects of scCO₂ foaming process and post‐vulcanization method on cellular structure, mechanical properties, and thermal stability of PMVQ foams

Mechanical Properties of Silicone Rubber Enhanced Microcellular EPDM Foams Based on Supercritical CO₂Foaming Technology

Butanol-Based Organosolv Lignin and Reactive Modification of Poly(ethylene-glycidyl methacrylate)

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Tensile properties and interfacial adhesion of silicone rubber/polyethylene blends by reactive blending

Cited by 20 publications

References 46 publications

Effects of scCO2 foaming process and post‐vulcanization method on cellular structure, mechanical properties, and thermal stability of PMVQ foams

Effects of scCO2 foaming process and post‐vulcanization method on cellular structure, mechanical properties, and thermal stability of PMVQ foams

Mechanical Properties of Silicone Rubber Enhanced Microcellular EPDM Foams Based on Supercritical CO2Foaming Technology

Butanol-Based Organosolv Lignin and Reactive Modification of Poly(ethylene-glycidyl methacrylate)

Contact Info

Product

Resources

About

Effects of scCO₂ foaming process and post‐vulcanization method on cellular structure, mechanical properties, and thermal stability of PMVQ foams

Effects of scCO₂ foaming process and post‐vulcanization method on cellular structure, mechanical properties, and thermal stability of PMVQ foams

Mechanical Properties of Silicone Rubber Enhanced Microcellular EPDM Foams Based on Supercritical CO₂Foaming Technology