Effect of CaCO3 Particles Size and Content on Impact Strenght of Kenaf/CaCO3/Epoxy Resin Hybrid Composites

Thermoplastic and thermoset polymer composites reinforced with kenaf fiber or CaCO3 have been extensively investigated. However, the study on the combination of kenaf fiber and CaCO3 reinforced epoxy resin is rare. This research discussed the effect of CaCO3 particle size and the ratio of kenaf to CaCO3 content on the impact strength of alkali-treated kenaf/ CaCO3/epoxy resin hybrid composites. Thirty % of the hybrid kenaf fibers and CaCO3 particles reinforced epoxy resin composites were fabricated by hand lay-up technique followed by cold press. Impact test of the composite specimens was conducted using a Charpy Impact test according to ASTM D 6110. The morphology of impact fracture surface was examined by scanning electron microscopy (SEM). The results showed that the impact strength of the hybrid composite increased with the decrease of CaCO3 particle size, and increasing the ratio of kenaf to CaCO3. Interfacial bonding between the reinforcement (kenaf and CaCO3) and epoxy resin matrix, the uniform dispersion of kenaf and CaCO3 within the epoxy resin matrix are two crucial factors influencing the impact strength of the composite.

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Effect of Compatibilizer on Impact Strength and Morphology of Polystyrene/Zinc Oxide Nanocomposites

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.545.330 ◽

2012 ◽

Vol 545 ◽

pp. 330-334

Author(s):

Sirirat Wacharawichanant ◽

Pranee Saetun ◽

Thunwawon Lekkong ◽

Thongyai Supakanok

Keyword(s):

Particle Size ◽

Zinc Oxide ◽

Impact Strength ◽

Impact Test ◽

Screw Extruder ◽

Melt Mixing ◽

Zno Particles ◽

Twin Screw ◽

The Impact ◽

Scanning Electron

This article investigated the effects of particle size of zinc oxide (ZnO) and polystyrene-co-maleic anhydride (SMA) compatibilizer on impact strength and morphology of polystyrene (PS)/ZnO71 (71 nm) and PS/ZnO250 (250 nm) nanocomposites. PS/ZnO nanocomposites with varying concentration of ZnO and SMA were prepared by a melt mixing technique in a twin screw extruder. It was found that the impact strength of PS nanocomposites increased up to a ZnO content of 1.0 wt%. Moreover, PS/ZnO250 nanocomposites had higher impact strength than PS/ZnO71 nanocomposites. The addition of SMA increased the impact strength of PS/ZnO nanocomposites with increasing SMA content. The result showed that SMA could improve impact strength of nanocomposites. The dispersion of ZnO particles on PS/ZnO nanocomposites was studied by scanning electron microscope (SEM). It was observed that the dispersion of ZnO particles of PS/ZnO nanocomposites without SMA was non-uniform and the agglomeration of ZnO particles in the polymer matrix increased with increasing ZnO content. The dispersion of ZnO particles of PS/ZnO nanocomposites after adding SMA was relatively good and only few aggregations exist. These observations support the results of the impact test where the PS/ZnO nanocomposites with SMA displayed higher impact strength than the PS/ZnO nanocomposites without SMA. The study showed that SMA was used as a compatibilizer to improve the dispersability and compatibility of ZnO particles in PS matrix.

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Hybrid composites with epoxy resin matrix manufactured with vacuum casting technology

Polimery ◽

10.14314/polimery.2014.677 ◽

2014 ◽

Vol 59 (09) ◽

pp. 677-681 ◽

Cited By ~ 3

Author(s):

Mariusz Oleksy ◽

Maciej Heneczkowski ◽

Rafal Oliwa ◽

Grzegorz Budzik ◽

Tomasz Dziubek ◽

...

Keyword(s):

Epoxy Resin ◽

Hybrid Composites ◽

Resin Matrix ◽

Vacuum Casting ◽

Epoxy Resin Matrix ◽

Casting Technology

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Effect of particle size on gamma radiation shielding property of gadolinium oxide dispersed epoxy resin matrix composite

Materials Research Express ◽

10.1088/2053-1591/aa6651 ◽

2017 ◽

Vol 4 (3) ◽

pp. 035035 ◽

Cited By ~ 20

Author(s):

Ran Li ◽

Yizhuo Gu ◽

Yidong Wang ◽

Zhongjia Yang ◽

Min Li ◽

...

Keyword(s):

Particle Size ◽

Gamma Radiation ◽

Epoxy Resin ◽

Matrix Composite ◽

Gadolinium Oxide ◽

Radiation Shielding ◽

Resin Matrix ◽

Epoxy Resin Matrix ◽

Resin Matrix Composite ◽

Effect Of Particle Size

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The impact of adhesive resin solution on carbon fibers cloth and jute-reinforced epoxy resin matrix composites

Journal of the Textile Institute ◽

10.1080/00405000.2015.1100818 ◽

2015 ◽

Vol 107 (10) ◽

pp. 1264-1267 ◽

Cited By ~ 2

Author(s):

Zhili Zhong ◽

Manyi Li ◽

Zhendong Liao ◽

Linling Lu

Keyword(s):

Epoxy Resin ◽

Carbon Fibers ◽

Resin Matrix ◽

Matrix Composites ◽

Adhesive Resin ◽

Epoxy Resin Matrix ◽

Resin Solution ◽

The Impact

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Pemanfaatan serat alam kulit terap sebagai bahan kombinasi pembuatan winglet sepeda motor

Turbo Jurnal Program Studi Teknik Mesin ◽

10.24127/trb.v9i1.1140 ◽

2020 ◽

Vol 9 (1) ◽

Author(s):

Ari Rianto ◽

Leo Dedy Anjiu ◽

Suhendra Suhendra

Keyword(s):

Impact Strength ◽

Impact Test ◽

Natural Fiber ◽

Fiber Composite ◽

Natural Fibers ◽

Composite Layer ◽

Fiber Material ◽

Resin Matrix ◽

Reinforcing Material ◽

The Impact

The development of new natural fiber material as a composite reinforcing material needs to be continued. The use of natural fibers developed in this study was obtained from applied bark. The applied skin fiber is chosen as a composite reinforcing material because it has strong characteristics when pulled. This study was conducted to determine the impact strength of a combination of the arrangement of the composite layer of applied fiber and glass fiber with a polyester resin matrix in the manufacture of motorcycle winglets. The making of composite specimens was carried out by hand lay-up and pressing techniques. composite specimens tested consisted of composite A (100% fiberglass), composite B (100% applied fiber), composite C (fiberglass, applied fiber, fiberglass), and composite D (applied fiber, fiberglass, applied fiber). The treatment of the applied fiber was carried out by soaking 5% NaOH for 2 hours. Impact test specimens and procedures refer to the ASTM D256-00 standard. The results of the study obtained that the material recommended in the manufacture of motorcycle winglets is composite C, which is a combination of fiberglass, applied fiber, fiberglass. The results of the C composite impact strength testing were obtained at 2.6581 J / mm2. The impact strength of composite C increased by 79% compared to the impact strength of composite B using pure applied fiber (100% applied fiber). The large void tendency in natural fiber composites using the hand lay-up method reduces the impact strength so that fiberglass is more dominant as a determinant of the impact strength increase.Keywords : Applied fiber, impact test, winglet.

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Flexural and Impact Properties of Epoxy composites Reinforced with Peanut Shell Particles

Engineering and Technology Journal ◽

10.30684/etj.v38i7a.584 ◽

2020 ◽

Vol 38 (7A) ◽

pp. 1026-1033

Author(s):

Hwazen S. Fadhil

Keyword(s):

Fracture Toughness ◽

Impact Strength ◽

Flexural Strength ◽

Epoxy Resin ◽

Natural Fiber ◽

Flexural Modulus ◽

Weight Fraction ◽

Resin Matrix ◽

Peanut Shell ◽

Epoxy Resin Matrix

Natural materials have been extensively used as reinforcements in polymer matrices instead of non-degradable synthetic reinforcement such as carbon, glass or aramid. The use is because of their low density, good mechanical properties, availability, and biodegradability. Peanut shell is one such natural waste filler used, and it contains cellulose, hemicellulose, and lignin. Natural fiber/particle sources are not only strong and lightweight but are relatively very cheap. This paper offers the comparison of the flexural, and impact energy test properties of the peanut shell reinforced with the epoxy resin matrix. Peanut shells add into the epoxy resin matrix with various weight fractions (2%, 4%, 6%, and 8%) and have been fabricated by hand lay-up procedure. Flexural strength and flexural modulus changed from (140MPa) to (160 MPa), and from (2 GPa) to (7.79 GPa) respectively, impact strength, and fracture toughness changed from (2.5 KJ/m2) to (7 KJ/m2), and from (2.23 MPa.m1/2) to (7.07 MPa.m1/2), respectively as a function of the particle weight fraction. The highest flexural strength and modulus obtained samples (reinforced 4% wt. peanut shell), while samples (reinforced +8% wt. peanut shell) provided the highest impact strength and fracture toughness.

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Enhanced toughness and shape memory behaviors of toughed epoxy resin

High Performance Polymers ◽

10.1177/0954008312449846 ◽

2012 ◽

Vol 24 (8) ◽

pp. 702-709 ◽

Cited By ~ 25

Author(s):

Chun-Hua Zhang ◽

Hui-Ge Wei ◽

Yu-Yan Liu ◽

Hui-Feng Tan ◽

Zhanhu Guo

Keyword(s):

Impact Strength ◽

Shape Memory ◽

Epoxy Resin ◽

Neat Epoxy ◽

Resin Matrix ◽

Polypropylene Glycol ◽

Resin System ◽

Shape Memory Behavior ◽

Epoxy Resin System ◽

The Impact

This paper reports on an approach to enhance the toughness of shape memory epoxy by using polypropylene glycol diglycidyl ether (G) as the toughening agent. The mechanical properties and shape memory behavior of the toughened resin systems with different loading level of G were studied, respectively. Results of the torsional braid analysis (TBA) test indicated that G had good compatibility with the epoxy resin matrix and induced a decrease in the glass transition temperature, Tg, of the toughened systems when compared to that of the neat resin system; and the decrease in Tg scaled with the content of G added in the system. Impact strength tests showed that the impact strength was improved significantly by adding G into the resin system and it increased by a factor of 13.7 for the system with 13 wt.% content of G. In addition, the toughened systems were found to yield during the impact strength test whereas brittle fracture occurred for the neat epoxy resin system; this behavior could be further confirmed by the results of scanning electron microscopy (SEM). In the shape memory behavior tests, strain fixity ratio reached as high as 98.9% for toughened systems with 7, 9, 11, 13, and 15 wt.% of G. Toughened systems also displayed changed shape recovery behavior that was comparable with that of the neat epoxy resin system during shape memory process.

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