An investigation on the dispersion of montmorillonite (MMT) primary particles in PP matrix

Shi, Dean; Yu, Wei; Li, Robert K.Y.; Ke, Zhuo; Yin, Jinghua

doi:10.1016/j.eurpolymj.2007.05.030

Cited by 22 publications

(11 citation statements)

References 27 publications

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“…Despite the importance of melt intercalation, the effects of processing conditions on the material's properties are not studied very extensively [5]. Most studies deal with the MMT modification and the better dispersion of organoclay in the polymer matrix and also different compatibilizers besides PP‐ g ‐Ma were investigated [6–12]. A novel approach to prepare PP nanocomposites with OH groups as compatibilizer was first reported in 1997 [13].…”

Section: Introductionmentioning

confidence: 99%

Investigation of the influence of processing conditions on the thermal, rheological and mechanical behavior of polypropylene nanocomposites

Mattausch

Laske

Đuretek

et al. 2012

Polymer Engineering & Sci

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The use of polypropylene (PP)‐layered silicate nanocomposite has attracted great interest in the polymer industry over the last years. On one hand, PP is widely used in many fields of applications because of good performance and cost. On the other hand, the major advantage of layered silicate nanofiller in the polymer matrix is the small amount of filler (<5 wt%) needed to enhance various properties such as Young's modulus. The most commonly used layered silicates are organomodified montmorillonite (MMT). In this study, a PP/organoclay nanocomposite, filled with layered silicate Nanofil SE3010 (1 and 5 wt%), provided by Rockwood Additives, USA, was used. The polymer nanocomposites were prepared via melt intercalation in a laboratory kneader. The compatibilizer (PP grafted with maleic acid anhydride) admixture content relative to the organoclay content (1 and 5 wt%) was chosen at a ratio of 1:1 (clay:compatibilizer). The influence of different processing conditions (rotation speed and residence time) on the thermal, rheological, and mechanical properties and the interlayer distance was investigated. It was the target to determine whether a short and intensive or a long and soft process performs better. Different properties prefer different states of dispersion of MMT in the polymer matrix. POLYM. ENG. SCI., 2013. © 2012 Society of Plastics Engineers

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Section: Introductionmentioning

confidence: 99%

Investigation of the influence of processing conditions on the thermal, rheological and mechanical behavior of polypropylene nanocomposites

Mattausch

Laske

Đuretek

et al. 2012

Polymer Engineering & Sci

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“…ere were two types of experiments: system 1 using the classical method: PP/DCP/MAH grafting system without o-MMT (No. 1-10); system 2 using o-MMT as nanonreactors: PP/(DCP/o-MMT)/MAH grafting system (11)(12)(13)(14)(15)(16)(17)(18)(19)(20).…”

Section: Resultsmentioning

confidence: 99%

“…On the basis of a detailed study on the molecular structure of MAH-grafted PP and the results of the literature [5,6], Shi et al presented the concept of nanoreactors of organically modified montmorillonite [17][18][19]. Preconfinement of dicumyl peroxide (DCP) in the nanometer-scale galleries of an o-MMT allowed concentrating MAH molecules on its outer surface and slowing down the release of primary radicals to the grafting reaction volume.…”

Section: Introductionmentioning

confidence: 99%

Organically Modified Montmorillonite as Nanoreactor to Improve the Grafting Degree of Maleic Anhydride onto Polypropylene

Chen

et al. 2020

Journal of Chemistry

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The application of an organically modified montmorillonite nanoreactor in the reactive extrusion process of the free radical grafting of maleic anhydride onto polypropylene (PP) can increase the MAH grafting degree on the PP. The mechanism of grafting was studied by using transmission electron microscopy and high temperature gel permeation chromatography. It was found that both the strong interactions between MAH and MMT surface and the encapsulation effect of active species confined in o-MMT improved the grafting degree.

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“…A new technique in the nanocomposites research include in nanocomposites based on blends of two or more polymeric materials. Hence, some studies interrelated to nanocomposites of the blends have been reported, especially for polypropylene/polyamide-6/clay (PP/PA-6/clay) blends [21][22][23][24]. The topic in polymer/clay nanocomposites however, did not commercialize from the academic rings but from Toyota Company by using nylon/clay nanocomposites in their cars in 1989.…”

Section: Introductionmentioning

confidence: 99%

Mechanical Properties of Polypropylene (PP) – Montmorillonite (MMT) Nanocomposites for Pre-Fabricated Vertical Drain (PVD) Application

Selamat

Ansari²,

Yahya³

et al. 2018

IJET

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Polypropylene (PP) – montmorillonite (MMT) blends were prepared by melt-mixing method followed by injection molding method. The optimum process melt-temperature was set at 1950C, the injection speed of 15cc/s, injection pressure of 30MPa and cooling time of 20 sec. was used for the sample preparation. Investigation shows, addition of MMT nanoparticles have improved the mechanical properties. The tensile test and impact test were conducted at room temperature and atmospheric pressure. The tensile modulus and yield strength improved with increasing MMT content, however, elongation at break was reduced as the MMT content was increased from 2wt% to 8wt%. The Izod impact strength is also affected by the addition of MMT content. Nanocomposites based on PP containing 8wt% of MMT showed higher impact strength than the other compositions and Neat PP (control). The influence of MMT content on impact strength increased with MMT content which is a significant result required for pre-fabricated vertical drain (PVD). Further investigations are required to study the mechanical properties of the PVD using PP – MMT nanocomposites to replace the existing material (PP).

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An investigation on the dispersion of montmorillonite (MMT) primary particles in PP matrix

Cited by 22 publications

References 27 publications

Investigation of the influence of processing conditions on the thermal, rheological and mechanical behavior of polypropylene nanocomposites

Investigation of the influence of processing conditions on the thermal, rheological and mechanical behavior of polypropylene nanocomposites

Organically Modified Montmorillonite as Nanoreactor to Improve the Grafting Degree of Maleic Anhydride onto Polypropylene

Mechanical Properties of Polypropylene (PP) – Montmorillonite (MMT) Nanocomposites for Pre-Fabricated Vertical Drain (PVD) Application

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