Analysis of moisture permeability of sheepskin in different parts based on microscopic and water contact angle / Zhong Anhua in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 108, N° 3 (05-06/2024)

[article]  inJOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 108, N° 3 (05-06/2024) . - p. 138-141 Titre : Analysis of moisture permeability of sheepskin in different parts based on microscopic and water contact angle Type de document : texte imprimé Auteurs : Zhong Anhua, Auteur ; Chen Xiaoting, Auteur ; Huang Zhuo, Auteur ; Hu Jingxian, Auteur ; Bian Jing, Auteur ; Liu Shaopu, Auteur Année de publication : 2024 Article en page(s) : p. 138-141 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Angle de contact Cuirs et peaux -- Analyse Cuirs et peaux de moutons Humidité Perméabilité Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : This paper mainly analyzes the moisture permeability of different parts of sheepskin based on microscopic and water contact angle. Firstly, the moisture permeability of the neck, belly, back and hip of natural sheepskin was tested and the change rule of moisture permeability was analyzed. Then the SEM electron microscope pictures and water contact angle data were obtained. Through the analysis of the fibre distribution, the tight arrangement of fibres and the tension of leather surface in different parts of natural sheepskin, the reasons for the formation of this moisture permeability rule were explained. The study found that under the same temperature and humidity conditions, the moisture permeability of sheep skin in different parts is different. On the whole, the moisture permeability of different parts of sheep skin showed the order of belly > hip > back > neck. Microstructure analysis showed that the order of fibre tightness in different parts was neck > back > hip > belly. The natural sheepskin fibres in the belly and hip are loosely arranged, and their water contact angles are also small, which facilitates the passage of water vapour, so they have excellent performance in moisture permeability; the fibres on the back and neck of natural sheepskin are closely arranged, with less voids, and the water contact angle of the skin is also large, which affects the passage of water vapour. Therefore, the performance of moisture permeability is not as good as that of the belly and hip. Note de contenu : - EXPERIMENTAL METHODS : Material preparation - Experiment equipment - Theory - RESULTS AND DISCUSSION : Analysis of moisture permeability of sheepskin in different parts - Microscopic analysis - Water contact angle analysis Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=41139 [article]

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Analysis of the influence of quality parameters on the moisture permeability of natural sheepskin / Zhong Anhua in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 108, N° 2 (03-04/2024)  

[article]  inJOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 108, N° 2 (03-04/2024) . - p. 86-89 Titre : Analysis of the influence of quality parameters on the moisture permeability of natural sheepskin Type de document : texte imprimé Auteurs : Zhong Anhua, Auteur ; Chen Xiaoting, Auteur ; Huang Zhuo, Auteur ; Guo Yizhi, Auteur ; Bian Jing, Auteur ; Liu Shaopu, Auteur Année de publication : 2024 Article en page(s) : p. 86-89 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Analyse relationnelle grise Cuirs et peaux -- Analyse Cuirs et peaux de moutons Humidité Perméabilité Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : Based on the grey system theory, this paper analyzes the comprehensive influence of the quality parameters of sheep leather on the moisture permeability of different parts of sheep leather. The differences in specific surface area and average pore size of sheepskin in different parts were analyzed, and the grey correlation analysis between the three influencing parameters and the moisture permeability of sheepskin in different parts was carried out. The study found that the specific surface area and average pore size of sheep skin in different parts were different. The specific surface area of sheep skin in different parts was ranked as follows: belly > back > neck > hip, and the average pore size was ranked as follows: neck > back > belly > hip. Through the comprehensive analysis of grey correlation, it is found that the order of influence of quality parameters on the moisture permeability of natural sheepskin is: average pore size > thickness > specific surface area. Note de contenu : - EXPERIMENTAL DETAILS : Experimental equipment - Experimental material - RESEARCH THEORY : Specific surface area - Average pore size - Grey system theory - RESULT AND DISCUSSION : Analysis of the influence parameters of different parts - Analysis of the influence of quality parameters on the moisture permeability of natural sheep leather - Fig. 1 : Flow chart of grey model - Table 1 : Natural sheepskin in different parts - Table 2 : Data used in grey correlation analysis En ligne : https://drive.google.com/file/d/1Ih6okLhfAxI1EHNR0fWXtc8SRsH4pSRG/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=40935 [article]

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