A deformational mechanism in particulate-filled glassy polymers

Lavengood, R. E.; Nicolais, L.; Narkis, M.

doi:10.1002/app.1973.070170414

Cited by 89 publications

(29 citation statements)

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“…This study has been reported by some researchers [22][23][24]. Based on Table 1, the tensile strength of EP-modified CS/CC is the highest as compared to ADP-modified CS/CC and GLA-modified CS/CC biocomposite films.…”

Section: Tensile Propertiesmentioning

confidence: 56%

A comparative study of different crosslinking agent-modified chitosan/corn cob biocomposite films

2015

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The effect of corn cob (CC) content and crosslinking agent on tensile, morphological, thermal properties, gel fraction and enzymatic degradation of chitosan (CS)/corn cob (CC) biocomposite films was studied. Epichlorohydrin (EP) and adipic acid (ADP) as crosslinking agents were added to improve the properties of CS/CC biocomposite films. The addition of CC decreased the tensile strength and elongation at break, but increased the modulus of elasticity of CS/CC biocomposite films. The EP-modified CS/CC exhibited higher tensile and thermal properties than ADP-modified CS/CC. The formation of crosslinkages between CS and EP or CS and ADP was proven by Fourier transform infrared studies. The modified CS/CC biocomposite films with ADP and EP, respectively, showed better interface interaction, as demonstrated in scanning microscopy electron. Furthermore, the incorporation of CC in CS increased the weight loss of enzymatic degradation of biocomposite films. Moreover, EP-modified CS/CC shows better resistance to hydrolysis in a-amylase enzymatic degradation than ADP-modified CS/CC. The gel fraction of CS/CC biocomposite films increases with the increasing CC content, whereas the gel fraction of modified CS/CC with EP is higher compared to modified CS/CC with ADP. The novelty of our research showed that the modified biocomposite films with EP have the highest tensile and thermal properties, also gel content than others biocomposite films. The biocomposite films modified with ADP confer plasticization effect compared to unmodified and other modified biocomposite films.

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Section: Tensile Propertiesmentioning

confidence: 56%

A comparative study of different crosslinking agent-modified chitosan/corn cob biocomposite films

2015

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“…In coupled systems, the knee on the stress-strain curve is more difficult to locate, and sometimes the knee does not show up at all (see Table 1 in ref. 3). A comparison of UD values for coupled and corresponding decoupled systems has given the following results: ABS, 2330 and 1750 psi (ratio = 1.33); PVC, 2960 and 1870 psi (ratio = 1.58); PMMA, 2790 and 2350 psi (ratio = 1.19); and CAB, 1430 and 1430 psi, respectively (ratio = 1.0).…”

Section: Resultsmentioning

confidence: 97%

Some mechanical properties of particulate-filled thermosetting and thermoplastic polymers

Narkis¹

1976

J. Appl. Polym. Sci.

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Hai f a, Isra e 1 SynopsisA semiempirical, single-parameter equation describes the modulus of particulate systems This equation has been found applicable for thermoplastic/glass bead systems, and it is further verified for particulate thermosetting systems (epoxy and polyester matrices). The temperature effect on the modulus of epoxy/glass bead composites is also analyzed. Crazing characteristics calculated from tensile data of thermoplastic/glass bead composites are summarized and compared with literature results on the corresponding unfilled polymers. The effect of coupling agents and preliminary results on rigid foams are also presented.

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“…113 The constants C and D can be determined from the following boundary conditions By applying the above boundary conditions we find Substitution of the above values into Equation (17) results in or for the stress developed in the ith fiber,…”

Section: Stress Distribution Along a Particle Diametermentioning

confidence: 99%

The Influence of the Adhesion Bond between Matrix and Filler on the Tensile Strength of Particulate-Filled Polymers

Papanicolaou

Bakos

1992

Journal of Reinforced Plastics and Composites

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A theoretical model for the prediction of tensile strengths of particulatefilled polymers is proposed. According to this model each particle is divided into an infinite number of coaxial cylinders and by applying Cox's theory the mean stress developed in each section of the particle may be calculated. Further a modified rule of mixtures was applied where the degree of adhesion between matrix material and filler particles as well as the degradation of the mechanical behaviour of the matrix due to the existence of the particles is taken into account. Therefore, when tensile strengths of polymer and particles are known, tensile strength of the filled polymer corresponding to specific values of degree of adhesion as well as of the matrix degradation can be estimated by the model. Finally, the model was successfully applied to a series of published data.

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A deformational mechanism in particulate-filled glassy polymers

Cited by 89 publications

References 1 publication

A comparative study of different crosslinking agent-modified chitosan/corn cob biocomposite films

A comparative study of different crosslinking agent-modified chitosan/corn cob biocomposite films

Some mechanical properties of particulate-filled thermosetting and thermoplastic polymers

The Influence of the Adhesion Bond between Matrix and Filler on the Tensile Strength of Particulate-Filled Polymers

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