Effect of Titanate Coupling Agent on the Mechanical Properties of Calcium Carbonate Filled Polypropylene

Doufnoune, Rachida; Chebira, F.; Haddaoui, N.

doi:10.1080/714975875

Cited by 43 publications

(26 citation statements)

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“…This reduction indicates the incapacity of the filler to support the stress transfer from the polymer to the matrix which shows a poor compatibility between the components. Similar observations on the variation of elongation at break have been reported by Doufnoune and Shuhadah [19,20] for other filled polymer systems. this indicates a good interaction between the polymeric matrix and the biofiller.…”

Section: Second Stage Study Of the Filler Loading Percentagesupporting

confidence: 76%

Development of a biocomposite based on green polyethylene biopolymer and eggshell

et al. 2015

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In this investigation a fully biobased composite material has been obtained using a biobased polyethylene obtained from sugar cane as matrix and eggshell (ES) as filler. ES was studied in order to replace mineral carbonate calcium as polymer filler, which is commonly used. In order to do this the ES has been chemically modified and then its potential for the development of a biocomposite was evaluated. The filler adhesion to the polymer matrix has been improved using titanate particle treatment which has been chosen between silane and zirconate. The use of titanate as coupling agent enlarges the range of operating temperatures and also improves the interfacial bonding as it is displayed in impact fracture surface. Mechanical, thermal and rheological analysis were carried out in order to analyze the effect of the modified ES loading percentage. Thermal analysis showed a proportional effect of the filler load over the degradation temperature and an inversely effect over the enthalpy. Effect of the modified ES content on mechanical properties of PE/ES was also studied. The results showed that the modified CaCO3 can effectively improve the mechanical properties of bio PE, improving stiffness, hardness, flexural and tensile modulus. The amount of filler increases the viscosity, this fact specially hinders the processing processes which work with low shear rates.

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Section: Second Stage Study Of the Filler Loading Percentagesupporting

confidence: 76%

Development of a biocomposite based on green polyethylene biopolymer and eggshell

et al. 2015

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“…Mechanical properties, such as tensile and flexural stresses, elongation at break, modulus, and impact strength, were also improved. Micrographic analyses confirmed the efficiency of surface treatment of the filler on its dispersion 61,62) . Similarly, Alkadasi et al 63) explored the effect of TCA treatment on clay/polybutadiene composite.…”

Section: Ceramic Fillersmentioning

confidence: 85%

Review of titanate coupling agents and their application for dental composite fabrication

Elshereksi

Ghazali

Muchtar

et al. 2017

Dental Materials Journal

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Silane is a dominant coupler that is widely used in dentistry to promote adhesion among the components of dental composites. Silica-based fillers can be easily silanized because of their similarly ordered structure. However, silane is hydrolytically degraded in the aqueous oral environment and inefficiently bonds to non-silica fillers. Thus, the development of hydrolytically stable dental composites is an important objective in the research on dental materials. Titanate coupling agents (TCAs) exhibit satisfactory interfacial bonding, enhanced homogeneous filler dispersion, and improved mechanical properties of the composites. Titanates also provide superior hydrolytic stability in wet environments, which should be considered in fabricating dental composites. The addition of a small amount of titanates can improve the resistance of the composites to moisture. This paper reviews the effects of the instability of silanes in moisture on the performance of dental composites and presents TCAs as alternative couplers to silanes for fabricating dental composites.

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“…This is due to its low cost, high capacity to improve mechanical properties such as stiffness and good particle dispersion in a polymeric matrix [5]. Calcium carbonate is the primary mineral content in the seashell of mollusks.…”

Section: Introductionmentioning

confidence: 99%

Characterization of green composites from biobased epoxy matrices and bio-fillers derived from seashell wastes

et al. 2014

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The seashells, a serious environmental hazard, are composed mainly by calcium carbonate, which can be used as filler in polymer matrix. The main objective of this work is the use of calcium carbonate from seashells as a bio-filler in combination with eco-friendly epoxy matrices thus leading to high renewable contents materials.Previously obtaining calcium carbonate, the seashells were washed and grinded. The powder obtained and the resin was characterized by DSC, TGA, X-ray diffraction (XRD), X-ray fluorescence spectroscopy (XRF), and rheology plate-plate. The results show that addition of 30 wt. % of seashell bio-filler increase mechanical properties as flexural modulus (over 50%) and hardness Shore D (over 6%) and thermal properties as an increase around 13% in glass transitions temperature. The results show that the addition of calcium carbonate from seashells is an effective method to increase mechanical properties of bio-composite and to reduce the residue of seashells from industrial production.

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Effect of Titanate Coupling Agent on the Mechanical Properties of Calcium Carbonate Filled Polypropylene

Cited by 43 publications

References 0 publications

Development of a biocomposite based on green polyethylene biopolymer and eggshell

Development of a biocomposite based on green polyethylene biopolymer and eggshell

Review of titanate coupling agents and their application for dental composite fabrication

Characterization of green composites from biobased epoxy matrices and bio-fillers derived from seashell wastes

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