The Evaluation of Performance Properties of CMC-Based Copolymer Hydrogels Reinforced with Cellulosic Fibers Subjected to Stepwise Chemical and Mechanical Pretreatments:  Moderate Alkaline Oxidation Treatment

Asena Damla Büyüküstün; Esat Gümüşkaya; Emir Erişir

Makale detayları

The Evaluation of Performance Properties of CMC-Based Copolymer Hydrogels Reinforced with Cellulosic Fibers Subjected to Stepwise Chemical and Mechanical Pretreatments: Moderate Alkaline Oxidation Treatment

Yazarlar:

Asena Damla Büyüküstün | Esat Gümüşkaya | Emir Erişir

Yayıncı:

Duzce University

Ana Başlıklar:

Lif ve Kağıt Teknolojisi | Orman Ürünleri Kimyası

Dergi:

Düzce Üniversitesi Orman Fakültesi Ormancılık Dergisi Vol.21 Issue 1, pp.172-192

Belge Tipi:

Makale

Yayın Tarihi:

6/2025

Belge Dili:

İngilizce

Document ID (Org No.):

2001352985

pISSN:

2148-7871

Anahtar kelimeler:

Özet:

 In this study, mechanical refining and alkaline oxidation pretreatments were applied to cellulose reducing the side effect of it on hydrogel performance. In addition to moderate oxidation with hydrogen peroxide at 80C, mechanical treatment was performed using PFI or supermasscolloider. The effectiveness of epichlorohydrin and citric acid as crosslinkers for hydrogel formation was investigated separately. The liquid absorption capacity, water uptake and swelling ratios of the produced hydrogels were measured and evaluated. The structural, morphological and thermal properties of the hydrogels were analyzed using FTIR, SEM and DSC. IR spectrum revealed that the interactions with both crosslinkers were effective. Although hydrogels with 10 cellulose ratio and cross-linked with citric acid can absorb liquid up to 50 times the initial mass, the overall performance of the samples produced with epichlorohydrin was found to be superior. SEM images showed that the porosity of the hydrogel decreased and the surface closedness increased in the samples with citric acid. These phenomena were considered as a reduction in diffusion of liquids and absorption capacity.

 In this study, mechanical refining and alkaline oxidation pretreatments were applied to cellulose reducing the side effect of it on hydrogel performance. In addition to moderate oxidation with hydrogen peroxide at 80C, mechanical treatment was performed using PFI or supermasscolloider. The effectiveness of epichlorohydrin and citric acid as crosslinkers for hydrogel formation was investigated separately. The liquid absorption capacity, water uptake and swelling ratios of the produced hydrogels were measured and evaluated. The structural, morphological and thermal properties of the hydrogels were analyzed using FTIR, SEM and DSC. IR spectrum revealed that the interactions with both crosslinkers were effective. Although hydrogels with 10 cellulose ratio and cross-linked with citric acid can absorb liquid up to 50 times the initial mass, the overall performance of the samples produced with epichlorohydrin was found to be superior. SEM images showed that the porosity of the hydrogel decreased and the surface closedness increased in the samples with citric acid. These phenomena were considered as a reduction in diffusion of liquids and absorption capacity.

 In this study, mechanical refining and alkaline oxidation pretreatments were applied to cellulose reducing the side effect of it on hydrogel performance. In addition to moderate oxidation with hydrogen peroxide at 80C, mechanical treatment was performed using PFI or supermasscolloider. The effectiveness of epichlorohydrin and citric acid as crosslinkers for hydrogel formation was investigated separately. The liquid absorption capacity, water uptake and swelling ratios of the produced hydrogels were measured and evaluated. The structural, morphological and thermal properties of the hydrogels were analyzed using FTIR, SEM and DSC. IR spectrum revealed that the interactions with both crosslinkers were effective. Although hydrogels with 10 cellulose ratio and cross-linked with citric acid can absorb liquid up to 50 times the initial mass, the overall performance of the samples produced with epichlorohydrin was found to be superior. SEM images showed that the porosity of the hydrogel decreased and the surface closedness increased in the samples with citric acid. These phenomena were considered as a reduction in diffusion of liquids and absorption capacity.

 Bu çalışmada, selülozun hidrojelin performans özelliklerinde yan etkilerini azaltmak için selüloza mekanik rafinasyon ve alkalin oksidasyon ön işlemleri uygulanmıştır. H2O2 ile 80Cde ılımlı oksidasyonun yanında, mekanik işlemler PFI veya supermasscolloider ile gerçekleştirilmiştir. Hidrojel üretiminde çapraz bağlayıcı olarak epiklorohidrin ve sitrik asidin etkinliği ayrı ayrı incelenmiştir. Üretilen hidrojellerin sıvı emme kapasitesi, su alma ve şişme oranları üzerinden değerlendirilmiştir. Hidrojellerin yapısal, morfolojik ve termal özellikleri FTIR, SEM ve DSC ile belirlenmiştir. IR spektraları, çapraz bağlayıcılar ile hidrojel sentezinin başarılı olduğunu göstermiştir. 10 selüloz içeren ve sitrik asit ile çapraz bağlanmış hidrojeller başlangıç kütlesinin 50 katına kadar sıvı absorbe etmesine rağmen, epiklorohidrin ile üretilen örneklerin performansının daha üstün olduğu görülmüştür. SEM görüntüleri, sitrik asit ile sentezlenen örneklerde gözenekliliğin azaldığını ve yüzey kapalılığının arttığını bu durumunda difüzyon ve absorpsiyon kapasitesinde azalmayla sonuçlandığı değerlendirilmiştir.

Makale detayları

The Evaluation of Performance Properties of CMC-Based Copolymer Hydrogels Reinforced with Cellulosic Fibers Subjected to Stepwise Chemical and Mechanical Pretreatments: Moderate Alkaline Oxidation Treatment

Yazarlar:

Asena Damla Büyüküstün | Esat Gümüşkaya | Emir Erişir

Yayıncı:

Duzce University

Ana Başlıklar:

Lif ve Kağıt Teknolojisi | Orman Ürünleri Kimyası

Dergi:

Düzce Üniversitesi Orman Fakültesi Ormancılık Dergisi Vol.21 Issue 1, pp.172-192

Belge Tipi:

Makale

Yayın Tarihi:

6/2025

Belge Dili:

İngilizce

Document ID (Org No.):

2001352985

pISSN:

2148-7871

Hydrogel

CMC

alkaline oxidation

supermasscolloider refining

PFI refiningHidrojel

CMC

alkali oksidasyon

süpermaskolloider rafinasyonu

PFI rafinasyonu

Sayı

Makale detayları

Yazarlar: Asena Damla Büyüküstün | Esat Gümüşkaya | Emir Erişir

Yayıncı: Duzce University

Ana Başlıklar: Lif ve Kağıt Teknolojisi | Orman Ürünleri Kimyası

Dergi: Düzce Üniversitesi Orman Fakültesi Ormancılık Dergisi Vol.21 Issue 1, pp.172-192

Belge Tipi: Makale

Yayın Tarihi: 6/2025

Belge Dili: İngilizce

Document ID (Org No.): 2001352985

pISSN: 2148-7871

Sayı

Yazarlar:

Asena Damla Büyüküstün | Esat Gümüşkaya | Emir Erişir

Yayıncı:

Duzce University

Ana Başlıklar:

Lif ve Kağıt Teknolojisi | Orman Ürünleri Kimyası

Dergi:

Düzce Üniversitesi Orman Fakültesi Ormancılık Dergisi Vol.21 Issue 1, pp.172-192

Belge Tipi:

Makale

Yayın Tarihi:

6/2025

Belge Dili:

İngilizce

Document ID (Org No.):

2001352985

pISSN:

2148-7871