Correlation analysis concerning the physical and mechanical properties of composites made of chromium leather scraps-chloroprene rubber adhesive RL-CR / Dongsheng Xin in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 107, N° 3 (05-06/2023)  

[article]  inJOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 107, N° 3 (05-06/2023) . - p. 83-87 Titre : Correlation analysis concerning the physical and mechanical properties of composites made of chromium leather scraps-chloroprene rubber adhesive RL-CR Type de document : texte imprimé Auteurs : Dongsheng Xin, Auteur ; Yurui Xin, Auteur ; Yinghua Ma, Auteur Année de publication : 2023 Article en page(s) : p. 83-87 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Allongement à la rupture Assemblages collés Caoutchouc Composites -- Propriétés mécaniques Composites -- Propriétés physiques Cuirs et peaux -- Déchets -- Recyclage Eclatement (matériaux) Humidité -- Absorption:Eau -- Absorption Mouillabilité Perméabilité Polychloroprène Traction (mécanique) Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : In this paper, the pearson product moment correlation coefficient analysis method is used to show that the tensile strength of RL/CR is highly positively correlated with the elongation at break, the bursting height is highly positively correlated with the bursting strength, the tensile strength is highly positively correlated with the bursting strength, and the bursting height is negatively correlated with the elongation at break. The air permeability of RL/CR is not correlated with 15 minutes water absorption, but is negatively correlated with 24 hours water absorption and surface wettability ; The 15 minutes water absorption of RL/CR is negatively correlated with the 24 hours water absorption and the surface wettability ; The surface wettability is positively correlated with 24 hours water absorption. The tensile strength of RL/CR is negatively correlated with air permeability, highly positively correlated with 15 minutes and 24 hours water absorption, and highly negatively correlated with surface wettability. The bursting strength of RL/CR is negatively correlated with air permeability and 15 min water absorption, and highly positively correlated with 24 hours water absorption and surface wettability. Note de contenu : - Introduction to correlation analysis of RL/CR - Theoretical basis of correlation analysis method - Experimental design of the orthogonal preparation of RL/CR and determination of its physical and mechanical properties - Calculation of correlation coefficient of physical and mechanical properties of RL/CR - Correlation analysis of physical and mechanical properties of RL/CR - Table 1 : Factors and levels of orthogonal test - Table 2 : Hot pressing process with orthogonal test - Table 3 : Mechanical properties of orthogonal test - Table 4 : Physical performance of orthogonal test - Table 5 : Correlation analysis of physical and mechanical properties of L5 - Table 6 : Correlation analysis of physical and mechanical properties of L9 - Table 7 : Correlation analysis of physical and mechanical properties of L3 - Table 8 : Correlation analysis of physical and mechanical properties of L5, L9, L3 - Table 9 : Relevance of physical and mechanical properties of RL/CR En ligne : https://drive.google.com/file/d/1Vw7-aw4Zt9ocWQM7WPhmaKQWLEg0gqAG/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=39577 [article]

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Establishment of mathematical model for the influence of physical and mechanical propertis of RL-CR composites / Yinghua Ma in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 107, N° 4 (07-08/2023)  

[article]  inJOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 107, N° 4 (07-08/2023) . - p. 134-138 Titre : Establishment of mathematical model for the influence of physical and mechanical propertis of RL-CR composites Type de document : texte imprimé Auteurs : Yinghua Ma, Auteur ; Yurui Xin, Auteur ; Dongsheng Xin, Auteur Année de publication : 2023 Article en page(s) : p. 134-138 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Caoutchouc Colles:Adhésifs Composites -- Propriétés mécaniques Composites -- Propriétés physiques Cuirs et peaux -- Déchets -- Recyclage Modèles mathématiques Polychloroprène Produits et matériaux recyclés Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : In this paper, the AHP (Analytic Hierarchy Process ) method is used to establish the mathematical model of four influencing factors, namely the amount of sizing, hot pressing temperature, hot pressing pressure and hot pressing time, regarding the physical and mechanical properties and comprehensive properties of RL/CR (RL recycled leather, CR chloroprene rubber adhesive). The analysis shows that the influencing laws of each factor on the total physical and mechanical properties of RL/CR and each of the typical physical and mechanical properties is basically consistent. The influence weights in order from high to low are: the amount of sizing, hot pressing pressure, hot pressing temperature and hot pressing time, among which the influence of hot pressing time on RL/CR performance is very weak and can be ignored. Note de contenu : - Clarify the problem and establish a hierarchical structure - Single ranking level, construct judgment matrix - Check the consistency of the judgment - Calculate the single ranking influence weight of factors on each physical and mechanical properties of RL/CR - Establish mathematical models of physical and mechanical properties of RL/CR - Establish the total mathematical model of physical and mechanical properties of RL/CR - Analysis of model - Fig. 1 : The arrangement structure style of properties and factors of RL/CR - Table 1 : The tablet and its meanings of the judgement matrix - Table 2 : The random index of 1~9 room of positive and negative matrix - Table 3 : The influence of factors on physical and mechanical properties of RL/CR En ligne : https://drive.google.com/file/d/1Yi0O5QgV1cbX8-vCVuaoPPb7P9b_ZNAR/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=39686 [article]

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