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Journals / DERİ BİLİM / 2010 / Cilt: 4 - Sayı: 1

Suni yaşlandırma yapılmış araba döşemelik derilerin bazı kimyasal ve yapısal özellikleri

Some chemical and structural characteristics of artificially aged automobile leathers

Hüseyin Ata KARAVANA
Nuray Olcay IŞIK
Pages
25–28
Publication Date
2022-10-11
DOI
—
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

After aging process, increase of chromium (VI) and formaldehyde contents and decrease of chromic oxide and soluble matter in dichloromethane contents were determined in finished automobile leather samples.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:Automobile leather samples were artificially aged by using temperature and temperature + UV radiation aging factors.
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Key Findings & Data:After artificial aging process, chromic oxide, soluble matter in dichloromethane, chromium (VI) and formaldehyde contents in the leather were analysed to determine chemical decomposition and findings compared with values before the aging process.
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Conclusion & Impact:After aging process, increase of chromium (VI) and formaldehyde contents and decrease of chromic oxide and soluble matter in dichloromethane contents were determined in finished automobile leather samples.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Automobile leather samples were artificially aged by using temperature and temperature + UV radiation aging factors. After artificial aging process, chromic oxide, soluble matter in dichloromethane, chromium (VI) and formaldehyde contents in the leather were analysed to determine chemical decomposition and findings compared with values before the aging process. Besides, the alteration of leather structure was investigated by Raman Spectroscopy. After aging process, increase of chromium (VI) and formaldehyde contents and decrease of chromic oxide and soluble matter in dichloromethane contents were determined in finished automobile leather samples.

Özet

Araba döşemelik deriler, sıcaklık ve sıcaklık + UV ışığı faktörleri ile suni olarak yaşlandırılmıştır. Yaşlandırma prosesinden sonra kimyasal bozunmayı tespit etmek ve yaşlanma prosesinden önceki değerlerle karşılaştırmak için derilerin krom oksit miktarı, diklormetanda çözünen madde miktarı, Cr(VI) ve formaldehit içeriği belirlenmiştir. Bunun yanında, deri yapısının değişimi Raman Spektroskopisi ile tespit edilmiştir. Bitmiş otomobil döşemelik deri örneklerinde yaşlandırmadan sonra Cr(VI) ve formaldehit içeriklerinin arttığı, krom oksit ve diklormetanda çözünen madde miktarının azaldığı belirlenmiştir.

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Cite This Article

KARAVANA, H. A., IŞIK, N. O. (2022). Suni yaşlandırma yapılmış araba döşemelik derilerin bazı kimyasal ve yapısal özellikleri. DERİ BİLİM, Cilt: 4 - Sayı: 1, 25–28. https://ajindex.com/articles/487184

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References (1)

  1. Bajza, Z., Hitrec, P., Muzic, M., Medic, D., and Krstic, D.: Experimental studies in restoration and conservation of historical leather, JSLTC 88, 2004. 2.Kellert, H.J., Hummel, A. and Germann, H.P.: The ageing behaviour of leather, World Leather 13(3), 2000, pp. 48-53. 3.Schwaiger, W., Franken, M., and Heinzelman, F.: The effect of products and production processes on the ageing properties of automotive upholstery leather, IDC 6, 2001, pp. 26-30. 4.ISO 4048, Determination of matter soluble in dichloromethane and free fatty acid content, 2008. 5.ISO 5398-1-Leather- Chemical determination of chromic oxide content- Part 1: Quantification by titration, 2007. 6.ISO/FDIS 17075- IULTCS/IUC 18, Leather- Chemical tests-Determination of chromium(VI) content, 2007. 7.ISO TS 17226/IUC 19, Determination of formaldehyde content of leather, 2003.