The effect of amino-silane coupling agents having different molecular structures on the mechanical properties of basalt fiber-reinforced polyamide 6,6 composites

Yu, Seung‐Hun; Oh, Kwang–Joong; Hwang, Jun Yeon; Hong, Soon Hyung

doi:10.1016/j.compositesb.2018.12.148

Cited by 90 publications

(48 citation statements)

References 23 publications

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“…The introduced hydrocarbon chains could form strong cross-linking with PP chain, thus enhance the interfacial adhesion between fiber and PP matrix. 26,40 Further evidence is given by Yu et al's study. 40 In order to improve the interfacial strength between basalt fibers and PA6,6, they treat fibers with different CH 2 chain length amino-silane coupling agents.…”

Section: Mechanical Testsmentioning

confidence: 84%

Effect of silane treatment on mechanical properties and thermal behavior of bamboo fibers reinforced polypropylene composites

Wang

Zhang

Liang

et al. 2020

Journal of Engineered Fibers and Fabrics

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In this work, the surface of the bamboo fibers (BF) was treated with three kinds of silane coupling agents terminated with amino functional groups (KH550), epoxy functional groups (KH560), and methyl functional groups (KH570) to improve fiber–matrix adhesion. The effects of silane treatment on the mechanical properties and thermal behavior of BF/polypropylene (PP) composites were investigated. Mechanical test results showed that the order of modification effectiveness was KH570 > KH550 > KH560. KH570 treated fiber composite exhibited the best mechanical properties. The tensile strength and flexural strength of 5 wt% KH570 treatment reached to 36.1 and 54.7 MPa, which were 15.4% and 23.6% higher than those of UBF/PP composites. Simultaneously, the thermal stability increased from 467.0°C (UBF) to 470.6°C (KH-570 treated BF). An increase in crystallization temperature (1.7°C) and a decrease in crystallinity (5.8%) occurred upon the addition of 5% KH570 silanes treated bamboo fibers.

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Section: Mechanical Testsmentioning

confidence: 84%

Effect of silane treatment on mechanical properties and thermal behavior of bamboo fibers reinforced polypropylene composites

Wang

Zhang

Liang

et al. 2020

Journal of Engineered Fibers and Fabrics

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“…The presence of high concentrations of nanofillers dispersed in the matrix makes it difficult to form large crystalline domains due to the limited space and restrictions imposed on the polymer chains, and this leads to the formation of smaller crystalline structures. Crystalline lamellae are formed more imperfectly 50 . It is possible to conclude that the incorporation of MWCNTs did not cause a great variation on the degree of crystallinity of the PA11 composites compared with the polymeric matrix.…”

Section: Resultsmentioning

confidence: 89%

“…Thus, the increase in the E" is linked to the increase in the viscous character and the greater flexibility of the material. Tan delta is the ratio of viscous to elastic behaviors 50,51 . Consequently, the damping properties are associated with the balance between the viscous and elastic phases of the polymeric material.…”

Section: Resultsmentioning

confidence: 99%

Influence of the addition of multi‐walled carbon nanotubes on the thermal and mechanical properties of polyamide‐11 before and after aging tests

Cruz

Tienne

Gondim

et al. 2020

J of Applied Polymer Sci

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In this work, the preparation and characterization of nanocomposites of commercial polyamide‐11 reinforced with multi‐walled carbon nanotubes (MWCNT), untreated, oxidized or with the modified surface through silanization with 3‐aminopropyl trimethoxy silane (APTMS), in concentrations of 0.1%, 0.5%, and 1.0 wt% in the polymer matrix was investigated. The processing of the nanocomposites was carried out via mixing in the molten state in a twin‐screw mini‐extruder at 200°C under 60 rpm screw rotation speed, with a residence time of 7 min. The addition of the MWCNT increased the thermal stability of PA11, predominantly with 0.5% of silanized nanotubes, as observed by the thermogravimetric analysis. X‐ray diffraction and differential scanning calorimetry analyses indicated that the degree of crystallinity of the formulations increased with the nanofiller content. On the other hand, the use of the highest concentration generated agglomerates, suggesting less dispersion in the matrix and, consequently, a reduction in crystallinity. Dynamic mechanical thermal analysis showed that the silanization process promoted an increase in both loss and storage moduli. All produced nanocomposites obtained values of corrected inherent viscosity above 1.20 dl/g, before and after the aging test. The use of lower load levels promoted better processability due to the lubricating effect of the nanotubes and an increase in the hydrophobic character of the samples, as observed by the increase of the contact angle.

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“…XRD and FTIR were performed to evaluate the surface modification of chemically treated and un-treated basalt fibers, these result shows that maximum pristine layer of basalt fiber with less changes in the surfaces when it is amorphous, but the crystallinity nature of the fiber exhibits more chemical and physical surface changes [5]. The tensile strength and fracture properties of basalt fiber/epoxy composites shows ,that the treated fiber exhibits more deterioration and good bonding on the interphase than the untreated fiber and these modifications are studied with the help of XRD, TEM and FTIR analysis [6,7]. Functional groups and crystalline structure of the fiber responsible for the modification happens in the properties of the composite structure, while seeing flax fiber which has natural crystallinity would produce good mechanical properties [8].…”

Section: Introductionmentioning

confidence: 97%

Low velocity impact, compression after impact and morphological studies on flax fiber reinforced with basalt powder filled composites

Prasath

Arumugaprabu

Amuthakkannan³

et al. 2020

Mater. Res. Express

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The objective of this research is to examine the low velocity impact (LVI) and effect of compression after impact (CAI) properties on flax fiber and basalt powder reinforced polyester composites. For this study the 10 layers of flax fiber, basalt powder by varying from 5% to 30% the composites were prepared. In the LVI analysis composite (10 layers of basalt/10% of basalt powder) shows better results about 1755 N of force and for CAI also same composite B experienced with less deformation and more residual energy to absorbing the force of about 2250 N. The addition of filler material up to certain limit will support the reinforcing fiber to achieve some enhanced property. The morphological changes and their properties were assessed using Fourier Transform Infrared Spectroscopy (FTIR) and x-ray diffraction Analysis (XRD) studies for particulate basalt powder. The presence of Pyroxene group of rocks in basalt powder responsible for stability in high temperatures seen using XRD analysis. The band width around 3390-3425 cm −1 shows the presence of hydroxyl group (OH) in the basalt powder. This proved that the materials are Polar Hydrophilic in nature examined with FTIR spectroscopy.

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The effect of amino-silane coupling agents having different molecular structures on the mechanical properties of basalt fiber-reinforced polyamide 6,6 composites

Cited by 90 publications

References 23 publications

Effect of silane treatment on mechanical properties and thermal behavior of bamboo fibers reinforced polypropylene composites

Effect of silane treatment on mechanical properties and thermal behavior of bamboo fibers reinforced polypropylene composites

Influence of the addition of multi‐walled carbon nanotubes on the thermal and mechanical properties of polyamide‐11 before and after aging tests

Low velocity impact, compression after impact and morphological studies on flax fiber reinforced with basalt powder filled composites

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