Tekstil ve Muhendis最新文献

PRODUCTION AND CHARACTERIZATION OF PHB, PHBV ELECTROSPUN FIBERS AND THEIR BLENDS phb、PHBV静电纺纤维及其共混物的生产与表征

Tekstil ve Muhendis Pub Date : 2023-09-30 DOI: 10.7216/teksmuh.1268253

Hatice Aybige AKDAĞ, Sebnem DUZYER GEBİZLİ, Aslı HOCKENBERGER

{"title":"PRODUCTION AND CHARACTERIZATION OF PHB, PHBV ELECTROSPUN FIBERS AND THEIR BLENDS","authors":"Hatice Aybige AKDAĞ, Sebnem DUZYER GEBİZLİ, Aslı HOCKENBERGER","doi":"10.7216/teksmuh.1268253","DOIUrl":"https://doi.org/10.7216/teksmuh.1268253","url":null,"abstract":"Polhydroxbutyrates (PHBs) are well-known bio-based and biodegradable bacterial polyesters. In this study, the effects of polymer type, solution concentration and feeding rate on the electrospinnability of Poly(3-hydroxbutyrate) (PHB) and Poly(3-hydroxybutyrate-co-3-hydroxyvalerate) PHBV nanofibers were investigated. First, PHB, PHBV and PHB/PHBV solutions with different polymer concentrations ranging between 5-11% wt. were prepared and characterized in terms of viscosity. Afterwards, electrospinning was performed and ultrafine fibers were produced. The surface morphology and the fiber diameters of the samples were investigated by scanning electron microscopy (SEM) analyses. Pore sizes of the samples were also calculated. In order to understand the wettability of the samples, contact angle measurements were conducted. The thermal properties and the crystallinity of the samples were investigated differential scanning calorimetry (DSC) analyses. The solution viscosities increased dramatically above %9 wt. of polymer concentration. SEM images revealed that decreasing feeding rate and increasing solution concentration resulted in fewer bead formation. On the other hand, fibers with diameters from 1.2 to 5.4 μm were produced with the increasing solution concentration and increasing voltage. All samples showed contact angle values above 90° indicating that they are hydrophobic. The PHB/PHBV blend surface showed the highest contact angle. DSC analyses showed that PHBV surface had significantly lower crystallization degree than PHB surface produced at the same concentration. It can be concluded that PHB fibers can be successfully produced by electrospinning.","PeriodicalId":35281,"journal":{"name":"Tekstil ve Muhendis","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136279397","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

COLOR REMOVAL OF DISPERSE DYEING WASTE WATER BY OZONE IN AN EXAMPLE DYEHAUSE 臭氧对分散印染废水的脱色效果

Tekstil ve Muhendis Pub Date : 2023-09-30 DOI: 10.7216/teksmuh.1365908

Semiha EREN, Hüseyin Aksel EREN, Gizem BAYAÇLI, İrem ÖZYURT

{"title":"COLOR REMOVAL OF DISPERSE DYEING WASTE WATER BY OZONE IN AN EXAMPLE DYEHAUSE","authors":"Semiha EREN, Hüseyin Aksel EREN, Gizem BAYAÇLI, İrem ÖZYURT","doi":"10.7216/teksmuh.1365908","DOIUrl":"https://doi.org/10.7216/teksmuh.1365908","url":null,"abstract":"As a result of rapid population growth and industrialization, wastewater generated in various sectors poses a threat to the environment and living things.Textile industry wastewater comes first among these wastewater sources.These wastewaters contain dyestuffs and different chemicals. These waters, which contain many impurities, must be treated well, otherwise they may cause serious problems in the environments where they are discharged. Various physical, chemical and biological methods are used for color removal in wastewater. However, due to the cost and low efficiency of these methods, researches are carried out on innovative and more economical methods. Among the new technologies, advanced oxidation processes (AOPs) are highly efficient new methods being studied for the purification of certain impurities that cannot be removed by general techniques. AOP methods include photocatalytic reaction with UV, ultrasound, Fenton/Peroxide, ultrasound sound waves and similar reactions. One of these methods is ozonation method. In this study, ozone decolorization of wastewater after disperse dyeing taken from textile dyehouse was investigated. In the determined procedure, the removal of color by ozonation method, which is one of the advanced oxidation methods for wastewater recipes after dyeing, was investigated and the color absorbance and COD values of the samples were examined and the results were evaluated.","PeriodicalId":35281,"journal":{"name":"Tekstil ve Muhendis","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136343487","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A NOVEL YARN FOR PERSONEL PROTECTION IN KNITTED SPORTSWEAR 针织运动服人员防护用新型纱线

Tekstil ve Muhendis Pub Date : 2023-09-30 DOI: 10.7216/teksmuh.1365889

Fatma Banu NERGİS, Cevza CANDAN, Sena Cimilli DURU

引用次数: 0

YARN PULL-OUT AND DROP WEIGHT IMPACT PERFORMANCE OF SHEAR THICKENING FLUID IMPREGNATED BALLISTIC FABRICS 剪切增稠液浸渍弹道织物的脱纱和落重冲击性能

Tekstil ve Muhendis Pub Date : 2023-09-30 DOI: 10.7216/teksmuh.1365872

Nazan OKUR, Canan SARICAM

引用次数: 0

GÖMLEK GİYİMİ İLE İLGİLİ TÜKETİCİ KONFOR DENEYİMLERİNİN VE TÜKETİCİ BEKLENTİLERİNİN İNCELENMESİ 调查消费者对衬衫穿着的舒适体验和期望

Tekstil ve Muhendis Pub Date : 2023-09-30 DOI: 10.7216/teksmuh.1273775

Selma DOLANBAY DOĞAN, Nurgul KILINÇ

{"title":"GÖMLEK GİYİMİ İLE İLGİLİ TÜKETİCİ KONFOR DENEYİMLERİNİN VE TÜKETİCİ BEKLENTİLERİNİN İNCELENMESİ","authors":"Selma DOLANBAY DOĞAN, Nurgul KILINÇ","doi":"10.7216/teksmuh.1273775","DOIUrl":"https://doi.org/10.7216/teksmuh.1273775","url":null,"abstract":"Bu araştırmada gömlek giyimi ile ilgili tüketici konfor deneyimlerinin ve tüketici beklentilerinin ortaya konması amaçlanmıştır. Deneyim ve beklentinin yanında tüketicilerin konfora/görünüşe/fonksiyonelliğe önem verme dereceleri, gömlek tercihinde etkili olan özellikler ve gömlek kumaşlarında tercih edilen lif türleri de incelenmiştir. Yaşa ve cinsiyete göre farklılıklar da değerlendirilmiştir. Bu araştırma tarama modelli bir araştırmadır. Araştırmanın verileri anket formu aracılığıyla toplanmıştır. Araştırmaya 132 kişi katılmıştır. Araştırma kapsamında elde edilen veriler SPSS programı ile istatistiksel olarak analiz edilmiştir. Araştırma sonuçlarında; gömlek giyme deneyiminde; dokunsal deneyimin istatistiksel olarak cinsiyete göre değiştiği ve kadınların erkeklere göre daha yüksek deneyim puanına sahip oldukları tespit edilmiştir. Hareket konforu deneyimi ise istatistiksel olarak cinsiyete göre değişmemiştir. Konfor/kullanım/bakım beklentisinin cinsiyete göre istatistiksel olarak değiştiği ve kadınların erkeklere göre daha yüksek beklenti puanına sahip oldukları tespit edilmiştir. Gömlek tercihinde etkili olan en önemli özellikler bedene uygunluk, konfor ve stil/model iken en az önemli özellikler üretim yeri, marka ve modaya uygunluktur. Cinsiyetin marka, konfor ve kolay bakım değerlendirmelerinde istatistiksel olarak etkili olduğu, kadınların konfor ve kolay bakımı erkeklere göre daha önemli buldukları, erkeklerin ise markayı kadınlara göre daha önemli buldukları sonucuna ulaşılmıştır. Yaş; sadece konfor değerlendirmesinde istatistiksel olarak etkilidir ve 55-75 yaş grubunun konfora en az önem veren grup olduğu tespit edilmiştir. Kadınların erkeklere göre konfora ve fonksiyonelliğe daha çok önem verdikleri, görünüşe ise kadın ve erkeklerin benzer derecede önem verdikleri görülmüştür. Tüketicilerin gömlek giyiminde en çok pamuk lifini sonrasında keten, keten pamuk, ipek gibi doğal içerikli lifleri tercih ettikleri en az ise sentetikler lif grubunda yer alan akrilik lifini tercih ettikleri tespit edilmiştir.","PeriodicalId":35281,"journal":{"name":"Tekstil ve Muhendis","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136343601","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

INVESTIGATION OF THE DYEABILITY OF COTTON FABRICS WITH BACTERIAL COLORANTS 细菌着色剂对棉织物可染性的影响

Tekstil ve Muhendis Pub Date : 2023-09-30 DOI: 10.7216/teksmuh.1365865

Hülya KICIK, Çağla GÖKBULUT

{"title":"INVESTIGATION OF THE DYEABILITY OF COTTON FABRICS WITH BACTERIAL COLORANTS","authors":"Hülya KICIK, Çağla GÖKBULUT","doi":"10.7216/teksmuh.1365865","DOIUrl":"https://doi.org/10.7216/teksmuh.1365865","url":null,"abstract":"Dyestuffs are used in almost every industry. However, due to the negative effects of synthetic dyestuffs on the environment and human health, environmentally friendly natural dyestuffs have gained importance in recent years, especially in the textile sector. Mostly plant and plant waste-based dyes are used in coloring fabrics with natural dyes. However, with the developments in the field of biotechnology, there are also studies in which pigment is produced by microorganisms. Within the scope of this study, 100% cotton woven fabric was dyed using 6 different processes with 3 bio-colors, pink, blue and brown, produced by bacterial fermentation. The dyeings were carried out in the absence of chemicals, in the presence of salt, salt-soda, salt-alum, salt-soda-alum and alum respectively. In order to evaluate the dyeing performance, the CIELab values of the fabrics were measured and their color fastness to washing, water, alkali and acid perspiration and also dry and wet rubbing fastness were checked. As a result of the studies, it was concluded that each dyestuff react in a different way with a different process. While the most suitable process for blue and pink bio-color is that salt used process, the highest K/S value with brown bio-color was obtained as a result of dyeing with salt-soda. All fastness values of the dyed fabrics were quite good. As a result of the trials, it can be said that laboratory-scale studies of bio-colors obtained by bacterial fermentation are promising for the future.","PeriodicalId":35281,"journal":{"name":"Tekstil ve Muhendis","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136343664","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

DOĞAL RADYASYONUN YÖNETİMİYLE TASARLANAN KİŞİSEL TERMAL YÖNETİM SAĞLAYAN PASİF AKILLI YAPILAR 通过管理自然辐射设计的提供个人热管理的被动式智能结构

Tekstil ve Muhendis Pub Date : 2023-09-30 DOI: 10.7216/teksmuh.1271662

Sibel KAPLAN, Nazife KORKMAZ MEMİŞ

{"title":"DOĞAL RADYASYONUN YÖNETİMİYLE TASARLANAN KİŞİSEL TERMAL YÖNETİM SAĞLAYAN PASİF AKILLI YAPILAR","authors":"Sibel KAPLAN, Nazife KORKMAZ MEMİŞ","doi":"10.7216/teksmuh.1271662","DOIUrl":"https://doi.org/10.7216/teksmuh.1271662","url":null,"abstract":"Kişisel termal yönetimin sağlanmasına yönelik, değişen vücut ve çevre şartlarına adapte olabilen pasif ve aktif akıllı tekstil yapıları ile artırılmış konfor ve azalan enerji gereksinimi gibi konularda avantajlar sağlanabilmektedir. Bu çalışmada, dünya için gün geçtikçe önem kazanan enerji kısıtlarına bağlı olarak, ekstra enerji harcanmadan doğal radyasyon enerji bileşenleri (ultraviyole, görünür, infrared) ve mekanizmalarının (yayılım, yansıtma, absorpsiyon, geçirgenlik) yönetimiyle vücudun termal dengesini ısıtma/soğutma veya ısıtma-soğutmayı birlikte sağlayarak koruyan yapılar, etkili radyasyon ısı transfer mekanizmaları ışığında incelenmiştir. Bu tür pasif akıllı yapılar için kullanılan ölçüm yöntemleri, mevcut çalışmaların eksik noktaları ve ilerleme yönü konularında da literatür ışığında değerlendirmeler yapılmıştır. Mevcut çalışmaların son dönemde, küresel ısınmanın etkilerinin de somut olarak hissedilmesiyle birlikte, radyasyonla iç ortamlarda kişisel soğutma konusunda yoğunlaştığı, dış ortamda geçerli olan karmaşık mekanizmaların tasarım ve ölçümleri zorlaştırdığı sonucuna varılmıştır. Ayrıca, çalışmalarda yapıların giyilebilirlikleri açısından önemli olan tutum, konfor ve radyasyon dışındaki ısı ve kütle transfer mekanizmalarının bütüncül olarak incelenmeleri konusunda eksiklikler tespit edilmiştir. Çalışmalar, konfor ve enerji tasarrufu beklentilerinin hızla değiştiği günümüzde radyasyon enerjisi yönetimiyle ısıtma/soğutma yapan yapıların vücut ve ortam koşullarına otonom olarak uyum sağlayabilecek şekilde tasarlanması yönünde ilerlemektedir.","PeriodicalId":35281,"journal":{"name":"Tekstil ve Muhendis","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136343672","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

ENVIRONMENTALLY FRIENDLY ACOUSTIC PANEL DESIGN FROM CURTAIN WASTE 环境友好的隔音板设计，从窗帘废物

Tekstil ve Muhendis Pub Date : 2023-09-30 DOI: 10.7216/teksmuh.1365898

Gamze AÇIKGÖZ, Onur AYDIN, Alp Yaman ALTUĞ, Hande SEZGİN, İpek YALÇIN ENİŞ

{"title":"ENVIRONMENTALLY FRIENDLY ACOUSTIC PANEL DESIGN FROM CURTAIN WASTE","authors":"Gamze AÇIKGÖZ, Onur AYDIN, Alp Yaman ALTUĞ, Hande SEZGİN, İpek YALÇIN ENİŞ","doi":"10.7216/teksmuh.1365898","DOIUrl":"https://doi.org/10.7216/teksmuh.1365898","url":null,"abstract":"Using leftover industrial curtain fabrics, this study aims to develop environmentally friendly acoustic panels. In this context, two forms of curtain fabric waste, blackout and dimout, which are segregated as waste from post-production process within Oba Perdesan, are transformed into fiber utilizing mini shredder. The hot press method is used to produce composite samples made of 100% blackout and 50% blackout/ 50% dimout fabric waste in two different thicknesses (0.5 and 1 cm). The thickness, density, basis weight, FTIR, sound absorption coefficient, and sound transmission loss of the manufactured panels are measured. The FTIR analysis reveals the distinctive peaks of the raw materials of the structures, while the acoustic test results show that the sound absorption coefficient and sound transmission loss increase along with the thickness and basis weight of the structures, respectively. While the 1 cm blackout/dimout blend sample has a superior sound absorption coefficient for 2000 Hz with 0.81, the 1 cm 100% blackout sample performs highest with 10dB sound transmission loss. The produced panels aid in solid waste management while consuming minimal raw materials, and an essential step is taken toward the development of sustainable, practical, and decorative panels.","PeriodicalId":35281,"journal":{"name":"Tekstil ve Muhendis","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136343661","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

DIGITALISED NONWOVEN MANUFACTURING FOR REDUCED ENERGY CONSUMPTION AND EFFICIENT PRODUCTION RATES 数字化无纺布制造，降低能耗，提高生产率

Tekstil ve Muhendis Pub Date : 2023-09-30 DOI: 10.7216/teksmuh.1365862

M Murat PEKSEN, Fatma Banu NERGİS, Cevza CANDAN, Bilge KOYUNCU

引用次数: 0

COMPARATIVE ANALYSIS OF EMBROIDERY AND SCREEN-PRINTING TECHNIQUES FOR TEXTILE-BASED FREQUENCY SELECTIVE SURFACES 基于织物的频率选择表面的刺绣和丝网印刷技术的比较分析

Tekstil ve Muhendis Pub Date : 2023-09-30 DOI: 10.7216/teksmuh.1365882

İbrahim ÜNER, Sultan CAN, Banu Hatice GÜRCÜM, Asım Egemen YILMAZ, Ertuğrul AKSOY

{"title":"COMPARATIVE ANALYSIS OF EMBROIDERY AND SCREEN-PRINTING TECHNIQUES FOR TEXTILE-BASED FREQUENCY SELECTIVE SURFACES","authors":"İbrahim ÜNER, Sultan CAN, Banu Hatice GÜRCÜM, Asım Egemen YILMAZ, Ertuğrul AKSOY","doi":"10.7216/teksmuh.1365882","DOIUrl":"https://doi.org/10.7216/teksmuh.1365882","url":null,"abstract":"Frequency Selective Surface (FSS) is a specialized structure used in the field of electromagnetic waves and radio frequency (RF) engineering. It is designed to exhibit selective transmission or reflection properties based on the frequency of the incident electromagnetic waves. This article describes the design, construction, and analysis of a textile-based band-stop frequency selective surface for use in the highly EM-polluted GSM, Wi-Fi, LTE, and WiMAX bands. A full-wave EM solver called CST Microwave Studio was used to develop and simulate the unit cell of the proposed FSS at the relevant frequency. In this study, embroidered and screen-printed textile based FSSs were designed. According to the results of this study, it was demonstrated that both embroidery and screen printing FSSs exhibit resonance at a frequency of 3.5 GHz. The screen printing method yielded the best results in terms of resonance frequency sensitivity, while the embroidery method showed a resonance frequency shift. It was observed that the stitch directions and density are important parameters in the embroidery method. Gaps between the embroidery paths in the production of embroidered FSSs resulted in differences from simulations due to the disruption of the structural integrity of the unit cell. Consequently, textile-based FSSs offer advantages over traditional FSSs. This study highlights the potential of textile FSSs as an effective means of reducing electromagnetic pollution, and suggests that further improvements in the design and production processes of textile FSSs can be made.","PeriodicalId":35281,"journal":{"name":"Tekstil ve Muhendis","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136343671","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0