Tuning of nanotube/elastomer ratio for high damping/tough and creep resistant polypropylene/SEBS-g-MA/HNT blend nanocomposites

Tekay, Emre; Nugay, Nihan; Nugay, Turgut; Şen, Sinan

doi:10.1177/0021998318794267

Cited by 15 publications

(48 citation statements)

References 44 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…This shift of the damping peak to lower temperatures may be attributed to additional frictions between PI molecules having segmental motions and Org-HNTs surrounding them at the glass transition region. 51,52 The storage moduli of all the nanocomposites at 25 C were found to be higher than that of PS-30SIS (Table 4 and Figure 8). This result is in a good agreement with Young's modulus values ( Table 2).…”

Section: Differential Scanning Calorimetric (Dsc) Analyses Of Ps/sis/mentioning

confidence: 95%

“…The frictions of all the polymer molecules with themselves and with the nanotubes can result in high damping property in the nanocomposites. 51,52 Moreover, Table 4 indicates the storage moduli at 110 C corresponding to rubbery phase moduli of the PS phase as well as PI phase as the mechanically weakest phase for any polymer. It is clear in Table 4 that the nanocomposites 7H-30SIS and 10H-30SIS exhibited about 37% and 53% increase in rubbery plateau modulus of PS-30SIS at 110 C, respectively.…”

Section: Differential Scanning Calorimetric (Dsc) Analyses Of Ps/sis/mentioning

confidence: 99%

See 1 more Smart Citation

Preparation of tough, high modulus, and creep-resistant PS/SIS/halloysite blend nanocomposites

Tekay

2020

Journal of Thermoplastic Composite Materials

Self Cite

View full text Add to dashboard Cite

In this work, polystyrene (PS)/poly(styrene-b-isoprene-b-styrene) (SIS)/organophilic halloysite nanotube (Org-HNT) blend nanocomposites were produced by melt compounding technique. The significant improvements in both toughness and impact strength values were obtained in PS/SIS blends containing 20%, 30%, and 40% SIS elastomer as compared to neat PS. Among them, PS-30SIS blend with a co-continuous morphology exhibited moderate tensile and impact properties and its nanocomposites having 3, 5, 7 and 10 phr Org-HNT were prepared through the melt mixing method. All the nanocomposites exhibited continuous/fibrillar morphologies with smaller elastomer domains and higher tensile modulus and toughness as compared to PS-30SIS blend. Among them, the nanocomposite having 7 phr Org-HNT and 30% SIS phase (7H-30SIS) exhibited the highest impact strength with enhanced tensile properties. The same nanocomposite exhibited about 21% and 100% increments in the modulus and toughness in comparison to its blend, respectively. The 7H-30SIS nanocomposite increased storage moduli of PS-30SIS blend at glass transition regions of both polyisoprene and PS phases and also at room temperature. Moreover, the rubbery storage moduli of the nanocomposites were found to be about 37% and 53% higher for 7 and 10 phr Org-HNT loaded nanocomposites, respectively, in comparison with that of PS-30SIS blend. The creep deformation and permanent deformation of the blend both decreased via introduction of the nanotubes which is in agreement with aforementioned improvements in the stiffness.

show abstract

Section: Differential Scanning Calorimetric (Dsc) Analyses Of Ps/sis/mentioning

confidence: 95%

Section: Differential Scanning Calorimetric (Dsc) Analyses Of Ps/sis/mentioning

confidence: 99%

Preparation of tough, high modulus, and creep-resistant PS/SIS/halloysite blend nanocomposites

Tekay

2020

Journal of Thermoplastic Composite Materials

Self Cite

View full text Add to dashboard Cite

show abstract

“…In order to provide a more homogeneous mixture, the prepared composite solutions were mixed for 15 min at 1500 r min À1 with a planetary type high-speed mixer (KuraboMazerustar-KK250, Japan). 20 The homogeneous polymernanotube solutions were poured into Teflon molds and left in the fume hood for 8 h, then dried at 50 C for 2 h in a vacuum oven to remove THF completely. The component ratios in the composites were determined as phr based on the weight of the SEBS polymer matrix ( Table 1).…”

Section: Preparation Of Sebs/org-hnt and Sebs/sebs-g-ma/org-hnt Nanocmentioning

confidence: 99%

“…The peaks of HNT appearing at 3624 and 3692 cm À1 and 1643 cm À1 are assigned to O-H stretching of inner hydroxyl groups and O-H deformation of water, respectively. 20,27 In the spectrum of Org-HNT, the peaks at 999 and 1117 cm À1 and 905 cm À1 are assigned to Si-O stretching (outer siloxane groups) bands and Al-OH (inner/edge hydroxyl groups) bending vibrations, respectively. 20,28 From the FTIR spectrum of the 3H-10SMA, the peaks at 1117, 999, and 905 cm À1 were found to shift to 1068, 1028, and 907 cm À1 , respectively.…”

Section: Ftir Analysesmentioning

confidence: 99%

Preparation of high-strength SEBS nanocomposites reinforced with halloysite nanotube: Effect of SEBS-g-MA compatibilizer

Arman

Tekay

Şen

2019

Journal of Thermoplastic Composite Materials

Self Cite

View full text Add to dashboard Cite

Poly(styrene -b-ethylene- co-butylene -b-styrene) (SEBS)/organophilic halloysite nanotube (Org-HNT) nanocomposites were prepared by solution mixing and then compression molded. Maleic anhydride grafted SEBS (SEBS- g-MA) was also used as a compatibilizer in preparation of SEBS/SEBS- g-MA/Org-HNT ternary nanocomposites. Surface morphologies and both static and dynamic mechanical analyses as well as thermal stabilities of the nanocomposites were carried out. Both the binary and ternary nanocomposites exhibited higher tensile moduli, tensile strength, and toughness values compared to neat SEBS. The elastic modulus was found to increase about 385% and 320% with addition of 3 and 5 phr Org-HNT into the SEBS matrix, respectively, while the maximum toughness was achieved via SEBS-5H composite with an increase of 45%. The ternary nanocomposite having 3 phr Org-HNT and 10 phr SEBS- g-MA (3H10SMA) gave about a 325% and 103% increase in the elastic modulus and toughness, respectively, together with a 75% increase in the tensile strength as the maximum value. This result was ascribed to interactions of the surface of the nanotubes with the maleic anhydride (MA) group of the compatibilizer. The same nanocomposite was also found to have two times higher dynamic storage modulus at 25°C than neat SEBS and almost the same damping value, which is an indication of improvement in the elastic character of SEBS without impairing its damping ability. Although a much higher damping value was obtained via use of 20 phr SEBS- g-MA with the same amount of nanotubes, the corresponding storage modulus decreased too much, close to that of neat SEBS. The enhanced tensile modulus, strength, and toughness of the 3H10SMA nanocomposite, which is consistent with its dynamic mechanical properties, indicate a good balance between the toughness/damping and stiffness. Moreover, all the nanocomposites exhibited better thermal stabilities than neat SEBS, showing higher midpoint degradation temperatures and peak maximum temperatures at which the maximum degradation occurs.

show abstract

“…Kendine has özelliklere sahip toplam 20 bölgeden oluşan İtalya'da her bölgenin hatta her şehrin, her kasabanın yemeklerini yapma şekilleri birbirinden oldukça farklıdır (Tekay, 2014;Sarıışık, 2016: 35). İtalyan sofralarında makarna, salata ve şarap üç vazgeçilmez olarak yerini alır (Mat, 2004: 1 …”

Section: Dünya Mutfaklariunclassified

Dünyanın En İyi Mutfakları ve Türk Mutfağı (The Best Cuisines in the World and Turkish Cuisine)

Girgin¹,

Demir²,

Çetinkaya³

2017

jotags

View full text Add to dashboard Cite

Gastronomi Dünya mutfakları Türk mutfağıEn iyi mutfaklar Mutfak kültürü ÖzTarih boyunca diğer birçok kültürlerle yaşanan etkileşim, geniş bir coğrafyada hüküm sürmesi ve bu hüküm sürdüğü coğrafyada farklı kültürlerin bir arada yaşaması gibi nedenler Türk mutfağının zenginleşesi ve çeşitlenmesine katkı sağlamıştır. Türk Mutfak kültürü ve zenginliği ile ilgili yapılan değerlendirmeler incelendiğinde, Türk Mutfağının farklı kültürleri etkilemesi, bu kültürlerden etkilenmesi ve köklü bir geçmişe sahip olması zenginliğine vurgu yapılarak dünya mutfakları içerisinde en önemli ilk üç mutfaktan (Fransız ve Çin mutfağı ile birlikte) biri olduğu savunulmaktadır. Yapılan bu çalışmanın amacı, internet üzerinden dünyanın en iyi mutfakları ile ilgili bilgi veren internet sayfalarında Türk mutfağının yerini belirlemektir. Belirtilen bu amaca ulaşmak için dünyanın en iyi mutfakları ile ilgili bilgi veren ve en çok ziyaret edilen internet sayfaları incelenmiştir. Yapılan bu inceleme sonucunda, arama motorlarında en çok ziyaret edilen 16 adet web sayfası arasında 9'unda Türk Mutfağı'nın yer aldığı, en iyi ülke sıralamaları yapılan ve Türk Mutfağı'nın yer aldığı web sayfalarında ise ortaya çıkan durumun istenilen seviyelerde olmadığı belirlenmiştir. Keywords Abstract GastronomyWorld cuisines Turkish cuisineThe Best cuisines Cuisine cultureThroughout the history, the interaction with many other cultures has contributed to the richness and diversification of Turkish cuisine due to its domination in a vast geography and co-existence of diverse cultures in such geography. By considering the assessments about the culture and richness of Turkish Cuisine, the impacts of Turkish cuisine on other different cultures as well as the impacts of other cultures on Turkish cuisine and its deeprooted history are emphasized and Turkish cuisine is argued to be one of the top three cuisines in the world (along with French and Chinese cuisines). The purpose of this study is to identify the place of Turkish cuisine on the webpages that provide online information about the best cuisines in the world. To achieve this indicated purpose, we have studied the most visited webpages that provide information about the best cuisines in the world. As a result of this study, it has been determined that Turkish Cuisine is listed in the 9 of the 16 most-visited webpages in search engines but the result is not at desired level in terms of the webpages that contain Turkish Cuisine and that list the best countries.

show abstract

Tuning of nanotube/elastomer ratio for high damping/tough and creep resistant polypropylene/SEBS-g-MA/HNT blend nanocomposites

Cited by 15 publications

References 44 publications

Preparation of tough, high modulus, and creep-resistant PS/SIS/halloysite blend nanocomposites

Preparation of tough, high modulus, and creep-resistant PS/SIS/halloysite blend nanocomposites

Preparation of high-strength SEBS nanocomposites reinforced with halloysite nanotube: Effect of SEBS-g-MA compatibilizer

Dünyanın En İyi Mutfakları ve Türk Mutfağı (The Best Cuisines in the World and Turkish Cuisine)

Contact Info

Product

Resources

About