Influence of Lignocellulose Fillers on Properties Natural Rubber Composites

Rybiński, Przemysław; Syrek, Bartłomiej; Masłowski, Marcin; Strzelec, Krzysztof; Żukowski, Witold; Bradło, Dariusz

doi:10.1007/s10924-017-1144-9

Cited by 23 publications

(16 citation statements)

References 29 publications

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“…Modulus of elasticity values of the composites was generally shown to increase as filler loadings increased in all cases attributable to chemical bonding occurring between the biofillers and the polymer. [23][24][25] Polyhydroxybutyrate biopolymer composites with cellulosic fillers have not been fully characterized and literature reports on PHB composites are limited.…”

Section: Introductionmentioning

confidence: 99%

The effects of cellulosic fillers on the mechanical, morphological, thermal, viscoelastic, and rheological properties of polyhydroxybutyrate biopolymers

Aydemir

Gardner

2020

Polymer Composites

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The aim of this study was to determine the effects of cellulosic fillers on the conventional and dynamic mechanical, thermal, morphological, and rheological properties of polyhydroxybutyrate (PHB) biopolymers. Polyhydroxybutyrate as a biopolymer matrix and cellulosic fillers including wood flour, microcrystalline cellulose, and cellulose nanofibrils (0.5 and 5 wt%) as reinforcing agents were used to produce the composite. According to the results obtained, the addition of 0.5 wt% cellulose nanofibrils improved both the flexural and tensile moduli of elasticity but other fillers and filler loading levels generally decreased the mechanical properties attributable to aggregations of fillers in the matrix. Thermal analysis results showed that the addition of cellulosic fillers did not influence the glass transition and crystallization temperature of the PHB whereas the crystallinity and melting temperature generally increased with the addition of the cellulosic fillers. Thermal stability of the composites generally improved with addition of the cellulosic fillers. The dynamic mechanical analysis results showed that both storage and loss moduli of all the samples generally decreased with increasing temperature. Elastic and viscous moduli of all the samples initially decreased with frequency but then generally increased according to the rheological analysis.

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Section: Introductionmentioning

confidence: 99%

The effects of cellulosic fillers on the mechanical, morphological, thermal, viscoelastic, and rheological properties of polyhydroxybutyrate biopolymers

Aydemir

Gardner

2020

Polymer Composites

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“…Because of the enormous quantity of straw, its utilization to the utmost extent is now demanding attention in the major cereal-growing areas of the world. Up to date, only a few research papers have been published to improve and verify the physical, mechanical, barrier and damping properties of bioelastomer composites with the addition of straw [35][36][37]. Generally, researchers focus their interests mainly on thermoplastic polymers containing cereal or plant straw as a filler.…”

Section: Introductionmentioning

confidence: 99%

Natural Rubber Composites Filled with Cereals Straw Modified with Acetic and Maleic Anhydride: Preparation and Properties

Masłowski

Strzelec

2018

J Polym Environ

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This research paper aims to provide an examinations on biocomposites based on natural rubber (NR), natural straw fibers as well as their production techniques and properties. After pre-alkalization of the fillers, two main modification methods were carried out, with the usage of acetic or maleic anhydride to improve the adhesion of the fibers to the elastomeric matrix. Firstly, physicochemical characterization of straw particles, both pure and modified, using scanning electron microscopy (SEM), thermogravimetric analysis (TGA) and Fourier transmission infrared spectroscopy (FTIR) was performed. Moreover full characterization of the produced composites was also executed, which included: rheogical properties, static and dynamic mechanical properties, crosslinking density, damping properties, tear strength and resistance to simulated aging processes. Increased adhesion between modified straw fibers and the elastomeric matrix was observed for 10 phr filled composites, which was confirmed by dynamic mechanical thermal analysis (DMTA). In addition, the impact of the applied modifications was confirmed by higher values of the Payne effect, which resulted from the presence of developed secondary structure of the filler in vulcanizates. Furthermore, the crosslinking density of composites increased, which was reflected in the improvement of tensile properties, determined by tensile and tear strength and relative damping.

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“…Similarly, the straw vulcanizates exhibited significant increase in tear strength and hardness, high values of damping coefficients, and satisfactory strength properties. The effect of alkalized wheat straw treated with dipotassium phosphate on the thermal, mechanical and fire hazard properties of natural rubber was reported by Rybinski, Syrek, Maslowski, Mied-zianowska, Strezelec, Zukowski and Brade [12]. It was found that the bio-fillers in the presence of added fire retardant increased the resistance of the composites to fire without significant adverse effect on the mechanical properties of the rubber composites.…”

Section: Introductionmentioning

confidence: 80%

End-Use Properties of Pineapple Leaf Fibre Filled Natural Rubber

Ekwueme¹,

Igwe²,

Vivian³

2019

JMMCE

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The effects of incorporating pineapple leaf fibre (PLF) as a filler on the end-end properties of natural rubber vulcanizates were studied at different filler contents and particle sizes. The pineapple leaf fibre was used within filler contents, 0 to 40 phr at the following filler particle sizes, 75, 150 and 300 μm. The PLF was characterized for filler properties while carbon black (N330) served as the reference filler. The natural rubber vulcanizates were compounded on a two-roll mill. Results showed that the abrasion resistance of filled natural rubber vulcanizates was generally higher than that of the unfilled natural rubber vulcanizate at filler content, 5 phr, and for PLF (150 and 300 μm) and carbon black filled natural rubber vulcanizates, the abrasion resistance decreased within filler content, 5 to 20 phr after which it increased with filler content. CB exhibited better abrasion resistance in the vulcanizates than PLF at filler contents greater than 20 phr. The hardness of filled natural rubber vulccanizates was generally greater than that of unfilled vulcanizate and increased with increases in filler particle size at filler contents, 10 and 20 phr. The specific gravity of the rubber vulcanizates increased gradually with the increase in filler content at filler content greater than 5 phr, and increased with increases in filler particle size at any filler content considered. The swelling index of filled natural rubber vulcanizates in toluene generally decreased with increasing filler particle size at filler contents, 5, 10 and 40 phr whereas the swelling index for PLF (150 μm) filled natural rubber decreased with increases in filler content. CB filled vulcanizates absorbed the highest amount of toluene (2.5%) in the vulcanizates at filler content, 40 phr. PLF (150 and 300 μm) generally gave optimum performances in the end-use properties of the rubber vulcanizates determined within filler contents, 30 and 40 phr. The incorporation of pineapple leaf fibre into natural rubber was found to improve the end-use properties of natural rubber vulcanizates and therefore, has potential in the formulation of natural rubber products.

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Influence of Lignocellulose Fillers on Properties Natural Rubber Composites

Cited by 23 publications

References 29 publications

The effects of cellulosic fillers on the mechanical, morphological, thermal, viscoelastic, and rheological properties of polyhydroxybutyrate biopolymers

The effects of cellulosic fillers on the mechanical, morphological, thermal, viscoelastic, and rheological properties of polyhydroxybutyrate biopolymers

Natural Rubber Composites Filled with Cereals Straw Modified with Acetic and Maleic Anhydride: Preparation and Properties

End-Use Properties of Pineapple Leaf Fibre Filled Natural Rubber

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