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Application of Environment-Friendly Processes Aimed at Bonding β-Cyclodextrine onto Cellulosic Materials

Grgac S. F., Malinar R.

Fibres & Textiles in Eastern Europe

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2018

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Vol. 26, no. 5 (131)

63--69

EN

The impact of the pre-treatment of cellulose material in NaOH solution and of microwave radiation on the mechanism of crosslinking β-cyclodextrin with cellulose was investigated in this paper. Citric acid and Na-hypophosphite as catalysts were applied for better crosslinking. Inclusion compounds with tea tree essential oil and cyclodextrines grafted onto cotton fabric were made in order to verify that cavities were available for inclusion compounds. The permanence of β-CD on the cellulose fabrics treated was tested by ISO 6330:2012. The properties and structure of the materials treated were characterised by Fourier transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM). The breaking force and mechanical damage of the materials were determined according to EN ISO 13934-1:1999. The results indicated better bonding between cellulose and β-cyclodextrin where microwave treatment was applied, the phenomenon of which is of great importance for long lasting wash durability. In order to quantify the odour releasing behaviour of β-CD treated cellulose fabrics, olfactometric determination of the intensity of odour was undertaken.

PL

Badano wpływ wstępnej obróbki materiału celulozowego w roztworze NaOH i promieniowania mikrofalowego na mechanizm sieciowania β-cyklodekstryny z celulozą. Dla lepszego usieciowania zastosowano kwas cytrynowy i Na-podfosforyn jako katalizator. Zastosowano także olej eteryczny z drzewa herbacianego i cyklodekstryny szczepione na tkaninie bawełnianej. Trwałość β-CD na obrabianych tkaninach celulozowych została przetestowana zgodnie z normą ISO 6330: 2012. Właściwości i strukturę obrabianych materiałów scharakteryzowano za pomocą spektroskopii w podczerwieni z transformatą Fouriera (FTIR) i skaningowej mikroskopii elektronowej (SEM). Siła zrywająca i mechaniczne uszkodzenia materiałów zostały określone zgodnie z normą EN ISO 13934-1: 1999. Wyniki wskazują na lepsze wiązanie pomiędzy celulozą i β-cyklodekstryną, w której zastosowano obróbkę mikrofalową. Zjawisko to ma ogromne znaczenie dla długotrwałej trwałości na pranie. W celu ilościowego określenia uwalniania nieprzyjemnych zapachów tkanin celulozowych poddanych obróbce β-CD, przeprowadzone zostało olfaktometryczne oznaczanie intensywności zapachu.

2

Wool Fabric Treated with Eco-Friendly Insect Repellent

Kreševič Vraz S., Vončina B.

Fibres & Textiles in Eastern Europe

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2017

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Vol. 25, no. 4 (124)

102--105

EN

In the research work presented, fabric made of wool was grafted with β-cyclodextrine (β-CD) using 1, 2, 3, 4 butanetetracarboxlic acid (BTCA) as a polyfunctional reagent. To reduce the grafting curing temperature, which could damage the wool fabric if too high, cyanamide (CA) in combination with ammonium dihydrogen phosphat (ADHP) were used as catalysts. The presence of cedar oil applied onto textile materials was determined by ATR FT-IR spectroscopy, as well as estimation of the add-on of cedar oil with the gravimetric approach, respectively. Finally the reduction in moths after being exposed to wool treated with a separate treatment formulation i.e. β-CD, cedar oil, and β-CD in combination with cedar oil was assessed visually after different time periods. Results showed that the wool after being treated with β-CD in combination with cedar oil shows significantly prolonged moth oppression activity compared to the wool treated with cedar oil only.

PL

W pracy szczepiono tkaninę wełnianą b-cyklodekstryną (b-CD) przy użyciu kwasu 1, 2, 3, 4 butanotetrakarboksylowego (BTCA). W celu zmniejszenia temperatury utwardzania, która jeśli jest za wysoka, może uszkodzić tkaninę wełnianą, jako katalizatora użyto cyjanamidu (CA) w połączeniu z fosforem mono-amonowym (ADHP). Obecność oleju cedrowego na materiałach określono za pomocą spektroskopii ATR FT-IR, a dodatek oleju cedrowego oszacowano przy użyciu metody grawimetrycznej. Następnie oceniono wizualnie, po różnych okresach czasu, redukcję ilości motyli po ekspozycji na wełnę obrabianą b-cyklodekstryną, olejem cedrowym oraz środkiem powstałym z połączenia b-cyklodekstrynąy i oleju cedrowego. Stwierdzono, że wełna, po obróbce b-cyklodekstryną w kombinacji z olejem cedrowym wykazuje znaczne wydłużenie aktywności przeciwko molom w porównaniu z wełną obrabianą samym olejem cedrowym.

3

Electrospun Thermoplastic Polyurethane Mats Containing Naproxen– Cyclodextrin Inclusion Complex

Akduman C., Özgüney I., Kumbasar E. P. A.

Autex Research Journal

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2014

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Vol. 14, no. 4

239--246

EN

Incorporation of cyclodextrins (CDs) into electrospun nanofibrous materials can be considered as potential candidates for functional medical textile applications. Naproxen (NAP) is a type of non-steroidal anti-inflammatory drug commonly administered for the treatment of pain, inflammation and fever. Drug-inclusion complex formation with CDs is an approach to improve the aqueous solubility via molecular encapsulation of the drug within the cavity of the more soluble CD molecule. In this study, NAP or different NAP-CD inclusion complexes loaded nanofibres were successfully produced through electrospinning and characterised. The inclusion complex loaded mats exhibited significantly faster release profiles than NAP-loaded thermoplastic polyurethane (TPU) mats. Overall, NAP-inclusion complex loaded TPU electrospun nanofibres could be used as drug delivery systems for acute pain treatments since they possess a highly porous structure that can release the drug immediately.

4

Applications of β-cyclodextrins in textiles

Bhaskara-Amrit U. R., Agrawal P. B., Warmoeskerken M. M. C. G.

Autex Research Journal

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2011

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Vol. 11, no. 4

94--101

EN

In this paper, the general features of β-cyclodextrin and their applications in the textile industry have been reviewed. The use of β-cyclodextrin in the textile industry is of great significance due to its wide range of application. One of the key aspects is the attachment technique of β-cyclodextrin to the textile's surface. This review deals with this in depth. Some quantification and characterization methods of Textile-β-cyclodextrin are discussed. In the last few years, the new direction in textile research is the functionalisation of textile systems. It is believed that β-cyclodextrin will play a very important role in these new developments. β-cyclodextrin can act as a host for various guest molecules. This enables the development of fabrics that release chemical compounds such as fragrances and antimicrobial agents. It is concluded that there are many possibilities for the development of new textile products with advanced properties based on β-cyclodextrin.