Failure of particulate reinforced polymers

Kausch, H. H.; Béguelin, Ph.; Fischer, Matthieu

doi:10.1007/bf02681868

Cited by 27 publications

(18 citation statements)

References 15 publications

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“…It should be noted that, in this model, the Young's modulus does not explicitly depend on the particle size and particle size distribution. Both the parameters and the effect of surface treatment enter into the model only indirectly through the maximum packing fraction V p-max [24]. The modulus value of the prepared particles is not known since its evaluation is of considerable experimental difficulty.…”

Section: Mechanical Propertiesmentioning

confidence: 99%

High‐density polyethylene reinforced with submicron titania particles

Bondioli

Dorigato

Fabbri

et al. 2008

Polymer Engineering & Sci

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Submicron titania particles were prepared by means of two different synthetic procedures in order to obtain different particle size (diameter ranging from 20 to 350 nm), shapes, and morphologies (amorphous or crystalline). Titania particles were surface modified with octadecylsilane in order to improve their compatibility with respect to polymeric matrices. High-density polyethylene (HDPE)-titania composites were prepared by melt blending by using an internal mixer. The obtained composites were mechanically characterized in quasi static and creep tensile conditions. The presence of submicron titania particles (1 %vol) led to a significant increase of elastic modulus (20-25%) with respect to the unreinforced HDPE together with a slight increase of yield stress and a decrease of ultimate elongation. An interesting reduction for both elastic and viscoelastic creep compliance components was also evidenced.

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Section: Mechanical Propertiesmentioning

confidence: 99%

High‐density polyethylene reinforced with submicron titania particles

Bondioli

Dorigato

Fabbri

et al. 2008

Polymer Engineering & Sci

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“…This is particularly true for products with consumer potential that could involve, for example, the viscosity of particulate suspensions and/or the modulus as well as the impact for particulate/polymer compounds and composites. Consequently, a better theoretical understanding of how particulate additives influence such properties as viscosity,1–7 modulus,7–13 and impact13–19 has received increased attention in the literature.…”

Section: Introductionmentioning

confidence: 99%

Optimizing the balance between viscosity/modulus and impact in particulate composites

Sudduth

2001

J of Applied Polymer Sci

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ABSTRACT:The objective of this study was to develop some new concepts of importance when trying to optimize the viscosity/modulus and impact relative to the particle-size distribution in suspensions and particulate composites. The results of this study appear to indicate that, conceptually, it is possible to significantly improve the viscosity versus the impact balance for material formulations by optimizing the particle-size distribution. For binary particle-size distributions, the influence of the preferred particle-size distribution, as determined using a square-root distribution, did not yield the most desirable particle-size distribution if the particle-to-particle component of the interaction coefficient was high. However, if three or more particles were utilized in the distribution, then the optimum particle-size distribution utilized can apparently be characterized using the square-root distribution even when the particle-particle component, pc , of the interaction coefficient, , was found to be quite high . In addition, this same square-root particle-size distribution can also satisfactorily predict a probability of impact that can remain consistently high as long as the particles utilized are well chosen and not too close in size. Thus, this preferred particle-size distribution can be utilized to predict at least one of the preferred distributions to optimize the balance of properties between impact and the viscosity/modulus.

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“…Unlike in composite with micro-or larger sized reinforcements, effect of particles either submicron-or nano-sized particles are found to be more unpredictable, sometimes enhancing the properties while other times diminishing it [7][8][9][10][11][12][13]. Therefore, an appropriate design and selection of the nano-scaled building blocks and organic matrix are the prerequisites for synthesizing nanocomposite.…”

Section: Synthesis and Dispersion Of Nanoparticles (Np S )mentioning

confidence: 99%

Nanotechnology: Development and challenges in Indonesia

Joni

Muthukannan

Hermawan

et al. 2018

AIP Conference Proceedings

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Abstract. Nanotechnology today is regarded as a revolutionary technology that can help to address the key needs related to energy, environment, health and agriculture in developing countries. This paper is a short review on the development and challenges of nanotechnology in Indonesia. Nanotechnology offers great potential benefits, there is emerging concerns arising from its novel physicochemical properties. The main applications of nanotechnology in the different sectors which is vital and its economic impact in Indonesia is also discussed. The achievment and development of nanotechnology including synthesis and dispersion of nanoparticles (NPs) and its applications in various fields is briefly addressed in Nanotehcnology and Graphene Research Center, Universitas Padjadjaran (Unpad). Despite significant progress in developmental goals, many challenges in the development of nanotechnology proccesing need to be resolved such as support infrastructure and evolution of new form of collaborative arrangements between various sectors and policies which is emerged as an important factor enabling development.

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Failure of particulate reinforced polymers

Cited by 27 publications

References 15 publications

High‐density polyethylene reinforced with submicron titania particles

High‐density polyethylene reinforced with submicron titania particles

Optimizing the balance between viscosity/modulus and impact in particulate composites

Nanotechnology: Development and challenges in Indonesia

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