Effect of surface modification of rice straw on mechanical and flow properties of <scp>TPU</scp>‐based green composites

Tayfun, Ümit; Doğan, Mehmet; Bayramlı, Erdal

doi:10.1002/pc.23331

Cited by 30 publications

(27 citation statements)

References 51 publications

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“…On the other hand, the reduction of water uptake for silane modified JF containing sample was found to be the most distinctive among composites. Silane layer donated the hydrophobic character on the JF surface (66,67). For this reason, higher water repellency was obtained for TPU/Si-JF with respect to other composites.…”

Section: Water Absorption Measurementsmentioning

confidence: 99%

Enhancement of mechanical, thermal and water uptake performance of TPU/jute fiber green composites via chemical treatments on fiber surface

Salem

Tirkeş

Akar³

et al. 2020

E-Polymers

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AbstractChopped jute fiber (JF) surfaces were modified using alkaline, silane and eco-grade epoxy resin. Surface characteristics of jute fibers were confirmed by FTIR and EDX analyses. JF filled polyurethane elastomer (TPU) composites were prepared via extrusion process. The effect of surface modifications of JF on mechanical, thermo-mechanical, melt-flow, water uptake and morphological properties of TPU-based eco-composites were investigated by tensile and hardness tests, dynamic mechanical analysis (DMA), melt flow index (MFI) test, water absorption measurements and scanning electron microscopy (SEM) techniques, respectively. Mechanical test results showed that silane and epoxy treated JF additions led to increase in tensile strength, modulus and hardness of TPU. Glass transition temperature (Tg) of TPU rose up to higher values after JF inclusions regardless of treatment type. Si-JF filled TPU exhibited the lowest water absorption among composites. Surface treated JFs displayed homogeneous dispersion into TPU and their surface were covered by TPU according to SEM micro-photographs.

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Section: Water Absorption Measurementsmentioning

confidence: 99%

Enhancement of mechanical, thermal and water uptake performance of TPU/jute fiber green composites via chemical treatments on fiber surface

Salem

Tirkeş

Akar³

et al. 2020

E-Polymers

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“…Composite structures can absorb amounts of impact energy through complex composite failure mechanisms during the crash process, which involve fiber fracture, matrix cracking, fiber-matrix debonding and delamination [5][6][7][8][9][10]. Therefore, a majority of relevant research have been conducted to reveal the complex failure mechanisms of composite structures in the past decades [11][12][13][14][15]. According to relevant researches, it remains challenging for the prediction of their failure behavior due to its easily affected by many factors, including stacking sequence, material properties, loading condition and triggering mechanism, and so forth [16][17][18][19][20][21][22][23].…”

Section: Introductionmentioning

confidence: 99%

Energy‐absorption performance of composite corrugated plates with corrugated‐shape ditch plug initiator

et al. 2018

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To improve the energy‐absorbing capacity of composite corrugated plate, the axial impact responses under axial quasi‐static crush loading is numerically studied and compared. Both the intra‐ply damage and delamination interface damage are considered. To accurately capture the progressive damage propagation, the failure material is modeled with a stiffness degradation method combined with the exponential damage evolution laws. To improve the crush performance, a novel corrugated‐shape ditch plug initiator (CDP) is proposed. The effects of extensive parameters including the ditch width and the inner geometry are carried out. Results show that well agreements between the numerical model and experimental results are identified on failure modes and energy‐absorption characteristics. The corrugated plate with CDP can increase the specific energy absorption by 20.3% than non‐plug initiator. The total of energy absorption is the decreasing function with respect to the width of ditch. The crushing performance can be improved due to the change in the inner geometry parameters. POLYM. COMPOS., 40:1708–1717, 2019. © 2018 Society of Plastics Engineers

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“…investigated the influences of cotton stalk on the mechanical and physical properties of the cotton stalk/polyethylene composites . In the literature, various modifiers and compatibilizers were applied to improve the properties of the composites, such as polyethylene glycol (PEG)‐diacrylate, silanes, sodium montmorillonite, and copper ethanolamine (CE) . Among these modifiers, development of cheap modifiers and compatibilizers for the synthesis of composites is of great importance for broadening and improving their industrial applications.…”

Section: Introductionmentioning

confidence: 99%

“…reported the alkali treatment of oil palm fibers, which increased the interfacial adhesion between fillers and the polymer matrix. Tayfun et al . modified the surface of rice straw using several treatments, and found that it obtained the high mechanical properties such as tensile strength, elastic and storage modulus and the low water uptake properties with silane treatment after alkaline treatment.…”

Section: Introductionmentioning

confidence: 99%

The enhancement performances of cotton stalk fiber/PVC composites by sequential two steps modification

Wang

et al. 2017

J of Applied Polymer Sci

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In the present study, the cotton stalk fiber (CSF) was modified by sequential two steps of alkali and copper ethanolamine (CE) solution treatment. The unmodified and modified CSF/poly(vinyl chloride) (CSF/PVC) composites were prepared. The mechanical and physical performances of the various CSF/PVC composites were studied comparatively. By the modification of CE solution, all the tensile strength, tensile modulus, impact strength, water resistance, and heat distortion temperature of samples were enhanced continuously. The sample with comprehensive properties was obtained using 2% concentration of CE. The composites were also prepared with different CSF content. By increasing the CSF loading, all the tensile strength, elongation at breakage, tensile modulus, and heat distortion temperature of samples were enhanced. The existence of copper on the surface of CSF improved the thermal stability of the CSF/PVC composites. Water retention value, oil retention value, and scanning electron microscope were applied to reveal the components and microscopic change of the composites. The possible reaction mechanism of modification was proposed based on the experimental results and according to the previous literature. This method reported here may provide a new way for the fabrication of CSF/PVC composite in engineering applications.

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Effect of surface modification of rice straw on mechanical and flow properties of TPU‐based green composites

Cited by 30 publications

References 51 publications

Enhancement of mechanical, thermal and water uptake performance of TPU/jute fiber green composites via chemical treatments on fiber surface

Enhancement of mechanical, thermal and water uptake performance of TPU/jute fiber green composites via chemical treatments on fiber surface

Energy‐absorption performance of composite corrugated plates with corrugated‐shape ditch plug initiator

The enhancement performances of cotton stalk fiber/PVC composites by sequential two steps modification

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