THE EFFECT OF THE AMOUNT OF HNT AND PLA ON THE PROPERTIES  OF POLYLACTIC ACID/ POLY (STYRENE-CO-METHYL METHACRYLATE)/HALLOYSITE  NANOCOMPOSITES

Dilan İskender; Ayla Altınten

Makale detayları

THE EFFECT OF THE AMOUNT OF HNT AND PLA ON THE PROPERTIES OF POLYLACTIC ACID/ POLY (STYRENE-CO-METHYL METHACRYLATE)/HALLOYSITE NANOCOMPOSITES

Yazarlar:

Dilan İskender | Ayla Altınten

Yayıncı:

Eskişehir Osmangazi University

Ana Başlıklar:

Polimer Bilimi ve Teknolojileri

Dergi:

Eskişehir Osmangazi Üniversitesi Mühendislik ve Mimarlık Fakültesi Dergisi Vol.31 Issue 3, pp.873-881

Belge Tipi:

Makale

Yayın Tarihi:

12/2023

Belge Dili:

Türkçe

Document ID (Org No.):

2001305417

pISSN:

2630-5712

Anahtar kelimeler:

Özet:

 In this study, Polystyrene-co-methylmethacrylate PSt-co-MMA was synthesized from styrene and methylmethacrylate monomers by emulsion polymerization method. Modified halloysite nanotube m-HNT, a nano-reinforcing material modified with dimethyl sulfoxide DMSO, and Polylactic acid PLA were added to PSt-co-MMA to give it biodegradable property. PLAPSt-co-MMAMMA using 5 and 10 m-HNT containing 30:70 and 50:50 mass ratios of PLAPSt-co-MMA by in-situ and solution blending methods HNT nanocomposite synthesis was carried out. The  monomer conversions and viscosity average molecular weights were calculated, and characterization studies were carried out. Thermal properties of copolymers and nanocomposites were observed by Thermogravimetric Analysis TGA, structural properties were observed by Scanning Electron Microscopy SEM and mechanical properties were observed by Shore D. For observe the effect of PLA on the nanocomposite, the plated samples were buried in cactus and humus soils. Finally, the effects of amount of HNT and PLA and nanocomposite synthesis methods on the properties of nanocomposites were investigated. In characterization studies, it was observed that the properties of nanocomposites increased with increasing HNT addition. It has been observed that nanocomposites produced by solution blending method exhibit better properties in terms of mechanical strength, but nanocomposite synthesis methods used in thermal resistance are not superior to each other. It was observed that the increase in the amount of PLA negatively affected the mechanical and thermal strength, but it was found to have a positive effect on biodegradation.

 In this study, Polystyrene-co-methylmethacrylate PSt-co-MMA was synthesized from styrene and methylmethacrylate monomers by emulsion polymerization method. Modified halloysite nanotube m-HNT, a nano-reinforcing material modified with dimethyl sulfoxide DMSO, and Polylactic acid PLA were added to PSt-co-MMA to give it biodegradable property. PLAPSt-co-MMAMMA using 5 and 10 m-HNT containing 30:70 and 50:50 mass ratios of PLAPSt-co-MMA by in-situ and solution blending methods HNT nanocomposite synthesis was carried out. The  monomer conversions and viscosity average molecular weights were calculated, and characterization studies were carried out. Thermal properties of copolymers and nanocomposites were observed by Thermogravimetric Analysis TGA, structural properties were observed by Scanning Electron Microscopy SEM and mechanical properties were observed by Shore D. For observe the effect of PLA on the nanocomposite, the plated samples were buried in cactus and humus soils. Finally, the effects of amount of HNT and PLA and nanocomposite synthesis methods on the properties of nanocomposites were investigated. In characterization studies, it was observed that the properties of nanocomposites increased with increasing HNT addition. It has been observed that nanocomposites produced by solution blending method exhibit better properties in terms of mechanical strength, but nanocomposite synthesis methods used in thermal resistance are not superior to each other. It was observed that the increase in the amount of PLA negatively affected the mechanical and thermal strength, but it was found to have a positive effect on biodegradation.

 In this study, Polystyrene-co-methylmethacrylate PSt-co-MMA was synthesized from styrene and methylmethacrylate monomers by emulsion polymerization method. Modified halloysite nanotube m-HNT, a nano-reinforcing material modified with dimethyl sulfoxide DMSO, and Polylactic acid PLA were added to PSt-co-MMA to give it biodegradable property. PLAPSt-co-MMAMMA using 5 and 10 m-HNT containing 30:70 and 50:50 mass ratios of PLAPSt-co-MMA by in-situ and solution blending methods HNT nanocomposite synthesis was carried out. The  monomer conversions and viscosity average molecular weights were calculated, and characterization studies were carried out. Thermal properties of copolymers and nanocomposites were observed by Thermogravimetric Analysis TGA, structural properties were observed by Scanning Electron Microscopy SEM and mechanical properties were observed by Shore D. For observe the effect of PLA on the nanocomposite, the plated samples were buried in cactus and humus soils. Finally, the effects of amount of HNT and PLA and nanocomposite synthesis methods on the properties of nanocomposites were investigated. In characterization studies, it was observed that the properties of nanocomposites increased with increasing HNT addition. It has been observed that nanocomposites produced by solution blending method exhibit better properties in terms of mechanical strength, but nanocomposite synthesis methods used in thermal resistance are not superior to each other. It was observed that the increase in the amount of PLA negatively affected the mechanical and thermal strength, but it was found to have a positive effect on biodegradation.

 Bu çalışmada stiren ve metilmetakrilat monomerlerinden emülsiyon polimerizasyonu yöntemi ile Polistiren-ko-metilmetakrilat PSt-ko-MMA sentezlenmiştir. PSt-ko-MMAya kullanım ömrü süresince mekanik ve termal özelliklerinin geliştirilmesi amacıyla dimetil sülfoksit DMSO ile modifiye edilmiş nano takviye malzemesi olan modifiye halloysit nanotüp m-HNT ve biyobozunur ozellik kazandırmak amacıyla Polilaktik asit PLA katılmıştır. In-situ ve çözelti harmanlama yöntemleri ile kütlece 30:70 ve 50:50 oranlarında PLAPSt-ko-MMA içeren kütlece 5 ve 10 oranlarında m-HNT kullanılarak PLAPSt-ko-MMAHNT nanokompozit sentezi gerçekleştirilmiştir. Kopolimer ve nanokompozitlerin  monomer dönüşümleri ve viskozite ortalama molekül ağırlıkları hesaplanmış ardından karakterizasyon çalışmaları gerçekleştirilmiştir. Kopolimer ve nanokompozitlerin termal özellikleri Termogravimetrik Analiz TGA, yapısal özellikleri Taramalı Elektron Mikroskobu SEM ve mekanik özellikleri Shore D ile gozlemlenmiştir. PLAnın nanokompozit üzerindeki etkisini gözlemleyebilmek için plaka haline getirilen numuneler kaktüs toprağı ve humuslu toprağa gömülmüştür. Çalışmanın sonunda HNT ve PLA miktarındaki değişimlerin ve nanokompozit sentezleme yöntemlerinin nanokompozitlerin özellikleri üzerindeki etkileri incelenmiştir. Karakterizasyon çalışmalarında nanokompozitlerin artan HNT katkısı ile özelliklerinin arttığı görülmüştür. Çözelti harmanlama yöntemi ile üretilen nanokompozitlerin mekanik dayanım konusunda daha iyi özellikler sergilediği fakat termal dayanım konusunda kullanılan nanokompozit sentezi yöntemlerinin birbirine üstünlügü olmadıgı gorülmüstür. PLA miktarının artışı mekanik ve termal dayanımı negatif yönde etkilediği görülmüş fakat biyobozunma konusunda pozitif etkisi olduğu saptanmıştır.

Makale detayları

THE EFFECT OF THE AMOUNT OF HNT AND PLA ON THE PROPERTIES OF POLYLACTIC ACID/ POLY (STYRENE-CO-METHYL METHACRYLATE)/HALLOYSITE NANOCOMPOSITES

Yazarlar:

Dilan İskender | Ayla Altınten

Yayıncı:

Eskişehir Osmangazi University

Ana Başlıklar:

Polimer Bilimi ve Teknolojileri

Dergi:

Eskişehir Osmangazi Üniversitesi Mühendislik ve Mimarlık Fakültesi Dergisi Vol.31 Issue 3, pp.873-881

Belge Tipi:

Makale

Yayın Tarihi:

12/2023

Belge Dili:

Türkçe

Document ID (Org No.):

2001305417

pISSN:

2630-5712

Emulsion Polymerization

Poly(Styrene-co-Methyl Methacrylate)

Halloysite

Polylactic Acid

Biodegradable PolymerEmülsiyon Polimerizasyonu

Poli(Stiren-ko-Metilmetakrilat)

Halloysit

Polilaktik Asit

Biyobozunur Polimer.

Sayı

Makale detayları

Yazarlar: Dilan İskender | Ayla Altınten

Yayıncı: Eskişehir Osmangazi University

Ana Başlıklar: Polimer Bilimi ve Teknolojileri

Dergi: Eskişehir Osmangazi Üniversitesi Mühendislik ve Mimarlık Fakültesi Dergisi Vol.31 Issue 3, pp.873-881

Belge Tipi: Makale

Yayın Tarihi: 12/2023

Belge Dili: Türkçe

Document ID (Org No.): 2001305417

pISSN: 2630-5712

Sayı

Yazarlar:

Dilan İskender | Ayla Altınten

Yayıncı:

Eskişehir Osmangazi University

Ana Başlıklar:

Polimer Bilimi ve Teknolojileri

Dergi:

Eskişehir Osmangazi Üniversitesi Mühendislik ve Mimarlık Fakültesi Dergisi Vol.31 Issue 3, pp.873-881

Belge Tipi:

Makale

Yayın Tarihi:

12/2023

Belge Dili:

Türkçe

Document ID (Org No.):

2001305417

pISSN:

2630-5712