Preparation and Physical Characterization of Polyepichlorohydrin Elastomer/Clay Nanocomposites

Lim, Sang Kyoo; Kim, H. B.; Chin, In‐Joo; Choi, Hyoung Jin

doi:10.1081/mb-120024814

Cited by 16 publications

(3 citation statements)

References 36 publications

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“…This was likely related to the inevitable agglomeration phenomena, which leads to the formation of weak point in the NR/BR matrix [17]. Similar stressstrain behavior has been reported for various rubber nanocomposites [18][19][20][21][22][23][24][25][26]. Figure 6 shows the 200% modulus and the elongation at break of nanocomposites with various OMMT contents, respectively.…”

Section: Mechanical Properties Of Nr/br/ommt(ii) Nanocompositessupporting

confidence: 64%

The Structure, Properties and Application of NR/BR/OMMT Nanocomposites

Yang

Gao

et al. 2010

High Performance Polymers

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Almost completely exfoliated natural rubber/butadiene rubber/organophilic montmorillonite (NR/BR/OMMT) nanocomposites were successfully prepared by mechanical blending. The optimal type of OMMT was carefully selected, using characterization by X-ray diffraction (XRD) and the mechanical properties of composites, from three NR/BR/OMMT composites with different kinds of OMMT. The almost completely exfoliated NR/BR/OMMT nanocomposites were confirmed by transmission electron microscopy (TEM) and XRD. Then a series of NR/BR/OMMT (the optimal organoclay) nanocomposites with various amounts of OMMT were prepared and characterized. The results showed the tensile strength and tear strength of nanocomposite with only 3 parts per hundreds of rubber (phr) of clay were improved by about 90.8 and 54.0% in comparison with the pure NR/BR, respectively1 and the stress relaxation behavior showed the equilibrium stress was higher than that of the pure sample. The increase of the cure rate index (VC) and reduction of the optimum time (T 90 ) indicated the efficiency of vulcanization was improved. The addition of OMMT also improved the oil resistance of the NR/BR composite1 however, the thermal stability was not changed significantly. The outstanding performance of these tire sidewall materials with OMMT reinforcement means that they are good prospects for application in the tire industry.

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Section: Mechanical Properties Of Nr/br/ommt(ii) Nanocompositessupporting

confidence: 64%

The Structure, Properties and Application of NR/BR/OMMT Nanocomposites

Yang

Gao

et al. 2010

High Performance Polymers

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“…The relaxation time is viable at higher temperatures, hence, the chains preference to achieve the relaxation time at higher temperatures. A comparison between T g values at a constant frequency reveals that T g of nanocomposite is higher than that of neat polymer . The nanoparticles reduced the free volume between the chains by hampering their free movements, therefore, increased their relaxation time at higher temperatures.…”

Section: Resultsmentioning

confidence: 97%

“…Increase in frequency means a decrease in time resulting in lack of sufficient energy for relaxation time for the polymer chains . The relaxation time is viable at higher temperatures, hence, the chains preference to achieve the relaxation time at higher temperatures.…”

Section: Resultsmentioning

confidence: 99%

Prediction of long‐term mechanical properties of PVDF/BaTiO₃ nanocomposite

Goodarzi

Kokabi

Razzaghi‐Kashani

et al. 2014

J of Applied Polymer Sci

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Low elastic modulus of polyvinylidene fluoride (PVDF) is a major drawback that can be compensated by adding nanoparticles. This work reports the long‐term mechanical behavior of PVDF nanocomposite containing BaTiO3 nanoparticle that is evaluated by creep test. The nanocomposite morphology was characterized by scanning and transmission electron microscopy techniques. The dynamic mechanical analysis (DMA) was employed to study the viscoelastic behavior of nanocomposite in a wide range of temperatures and frequencies. According to the creep tests, nanocomposite reduced the rate of the creep compliance at different temperatures. Moreover, the creep compliance for the nanocomposite sample decreased slightly in comparison with neat PVDF. Comparing the Burger's model and experimental results, the elastic and viscous parameters revealed the exactly opposite behavior with increasing temperature. The effect of frequencies on storage moduli of samples was investigated based on time–temperature superposition (TTS) method. © 2014 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2014, 131, 40596.

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