Novel organomodified kaolin/silica hybrid fillers in natural rubber and its blend with polybutadiene rubber

Sreelekshmi, R. V.; Devaki, Sudha J.; Menon, A. R. R.

doi:10.1007/s00289-016-1745-9

Cited by 25 publications

(19 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Firstly, it is of significance to modify silica to improve its dispersibility in the rubber matrix, and many related studies have been conducted. [15][16][17][18][19][20] For example, silica modified by silane coupling agents, [21][22][23][24][25][26] surfactant, [27][28][29][30] both silane coupling agents and surfactant, [31] grafting polymer, [32,33] adding other fillers, [34][35][36] ionic liquid. [37] What's more, mechanical force can also improve the dispersibility of silica, but it has little effect on the enhancement of interface strength due to the bad compatibility of silica and rubber.…”

Section: Introductionmentioning

confidence: 99%

Promoting the dispersibility of silica and interfacial strength of rubber/silica composites prepared by latex compounding

Sun

Cheng

Zhang

et al. 2020

J of Applied Polymer Sci

View full text Add to dashboard Cite

The dispersibility of precipitated silica and its interfacial interaction with rubber matrix can affect the performances of tires which is a difficult problem to be solved. A well‐dispersed silica dispersion was obtained through ball milling and modification process followed by heat treatment to enhance the properties of NR composites prepared by latex compounding. Benefiting from the modifier Si‐747, the well‐dispersed silica/NR composite (Silica‐MSH‐C) shows excellent tensile strength of 30.8 ± 0.5 MPa, which is 17.6 ± 3.8% higher than latex compounding pure silica/NR composite (Silica‐C) and 21.7 ± 4.3% higher than traditional mechanical blending pure silica/NR composite (T‐Silica‐C). The tan delta values indicate that Silica‐MSH‐C has better dynamic properties and also has stronger interface strength according to swelling tests, heat capacity curves and Mooney‐Rivlin equation. The molecular dynamics (MD) simulation further shows the binding energy between NR and Si‐747 modified SiO2 is 58.88 Kcal/mol larger than the value of NR and pure silica.

show abstract

Section: Introductionmentioning

confidence: 99%

Promoting the dispersibility of silica and interfacial strength of rubber/silica composites prepared by latex compounding

Sun

Cheng

Zhang

et al. 2020

J of Applied Polymer Sci

View full text Add to dashboard Cite

show abstract

“…In polymer‐based composites, ceramics are selected as fillers because they have properties that can strengthen the polymeric matrix. One such ceramic is silica (SiO 2 ), which is abundant and has a relatively high specific tensile strength . Furthermore, silica has several types of polymorphs, including quartz and cristobalite .…”

Section: Introductionmentioning

confidence: 99%

Dynamic tensile and shear storage moduli of PEG/silica‐polymorph composites

Fauziyah

Hilmi

Fadly

et al. 2018

J of Applied Polymer Sci

View full text Add to dashboard Cite

The effect of silica polymorphs on the thermomechanical properties of 0, 5, 10, and 20 wt % silica particles-reinforced-based poly(ethylene glycol) (PEG) composites have been studied as a function of temperature using dynamic mechanical analysis (DMA). The silica polymorphs exhibited quartz (Q), cristobalite (C), and amorphous (A) phases, which were obtained by processing natural silica sand. The DMA thermomechanical properties were determined in tensile (E) and shear (G) modes. The maximum storage moduli (E 0 and G 0 ) were achieved by samples with 20 wt % silica for all type of fillers. These values increased approximately 12 times for PEG/Q, 10 times for PEG/A, and 11 times for PEG/C composites compared to the pure PEG. Furthermore, the Poisson's ratio values of the composites were filler phase dependent, that is, 0.39-0.47 for PEG/Q, 0.15-0.18 for PEG/A, and somewhat anomalous for PEG/C composites.

show abstract

“…It can therefore be presumed that these compounds can have the greatest effect on the rheological properties of polypropylene, and each of them may result in obtaining different functional properties of produced composites. This means that a similar effect as for the modification of polymers using synthetic hybrid fillers can be achieved [5][6][7][8]. So far, no studies have been carried out to assess the effect of the addition of a multicomponent filler of natural origin, such as opoka rock, on the processability of thermoplastic polymers.…”

Section: Methodsmentioning

confidence: 99%

“…2) University of Adam Mickiewicz in Poznan, Center for Advanced Technology, Umultowska 89c, 61-614 Poznań, Poland. * ) Author for correspondence: e-mail: Arkadiusz.Klozinski@put.poznan.pl taining polyhedral oligomeric silsesquioxanes (POSS), such as POSS/silica [5], POSS/lignin [6], POSS/MgO•SiO 2 [7], or the system phosphorylated cashew nut shell liquid prepolymer (PCNSL)/kaolin [8]. A hybrid filler, e.g., POSS/silica, not only constitutes a modern multifunctional system, but also allows an expensive filler (a POSS--type nanofiller) to be introduced to the polymer matrix by applying it onto the surface of an inexpensive and readily available carrier, which is silica.…”

Section: Zastosowanie Pomiarów Reologicznych Typu In-line W Charaktermentioning

confidence: 99%

Application of in-line rheological measurements for characterization of polypropylene/opoka rock powder composites

et al. 2019

View full text Add to dashboard Cite

The rheological properties of the composites of polypropylene (PP) with a new natural powder hybrid filler-carbonate-silicate rock called opoka-were investigated. Opoka rock is industrial waste originating (as a subsieve fraction) from the production of sorbents used in water treatment processes. The effect of opoka addition (1, 5 and 10 wt %) on the processability of PP was determined during the extrusion process using an in-line measuring stand. The testing instrument was an extruder rheometer equipped with a rheological measuring head with exchangeable dies. Cylindrical measuring dies with a radius of 1.5 mm and a length of L = 20, 30, 40 and 50 mm, respectively, were used in the measurements. The rheological parameters of the composites were determined based on the Ostwald-de-Waele power-law model at a temperature of 230 °C. The effect of the addition of opoka on the extruder operating characteristic, flow curves, viscosity curves, and the values of power law index (n), consistency factor (K), mass flow rate (MFR) and volume flow rate (MVR) have been determined.

show abstract

Novel organomodified kaolin/silica hybrid fillers in natural rubber and its blend with polybutadiene rubber

Cited by 25 publications

References 33 publications

Promoting the dispersibility of silica and interfacial strength of rubber/silica composites prepared by latex compounding

Promoting the dispersibility of silica and interfacial strength of rubber/silica composites prepared by latex compounding

Dynamic tensile and shear storage moduli of PEG/silica‐polymorph composites

Application of in-line rheological measurements for characterization of polypropylene/opoka rock powder composites

Contact Info

Product

Resources

About