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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]
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/CREn ligne : https://drive.google.com/file/d/1Vw7-aw4Zt9ocWQM7WPhmaKQWLEg0gqAG/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=39577
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 107, N° 3 (05-06/2023) . - p. 83-87[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 24110 - Périodique Bibliothèque principale Documentaires Disponible 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)
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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 recyclésIndex. 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/CREn ligne : https://drive.google.com/file/d/1Yi0O5QgV1cbX8-vCVuaoPPb7P9b_ZNAR/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=39686
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 107, N° 4 (07-08/2023) . - p. 134-138[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 24155 - Périodique Bibliothèque principale Documentaires Disponible Optimisation of hot-pressing technique for bonded leather with CR adhesive / Yinghua Ma in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 104, N° 2 (03-04/2020)
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Titre : Optimisation of hot-pressing technique for bonded leather with CR adhesive Type de document : texte imprimé Auteurs : Yinghua Ma, Auteur ; Dongsheng Xin, Auteur ; Runting Xia, Auteur ; Shaolan Ding, Auteur ; Fei Ma, Auteur Année de publication : 2020 Article en page(s) : p. 77-82 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Contre-collage
Cuir -- Collage
Cuirs et peaux -- Déchets -- Recyclage
Latex
Pressage à chaud
Résistance à la tractionIndex. décimale : 675 Technologie du cuir et de la fourrure Résumé : Large quantities of waste chrome leather shavings are produced during the tanning process. Recycling waste chrome shavings is carried out in a clean, simple, low-consumption manner inspired by the technology of solid wood particle board in the furniture industry, thus making high value products. This paper prepared bonded leather (BL) using CR adhesive and a vulcanising machine, the BL prepared had gond gas permeability, water absorption, and adequate tensile strength, the optimal hot-pressing conditions and formulae used were: (1) latex ratio 20%, 70°C, 5 minutes and 3MPa; (2) latex ratio 23%, 80°C, 4 minutes and 3MPa; (3) latex ratio 18%, 80°C, 5 minutes and 6MPa. Note de contenu : - METHODOLOGY : Main materials - Hot-press forming process - Measurement of physical-mechanical properties for BL
- RESULTS ANALYSIS : Single factor test - Orthogonal testEn ligne : https://drive.google.com/file/d/1IlQ8709yBLKJp57zK_Aiom5y2cA23YqW/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=33912
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 104, N° 2 (03-04/2020) . - p. 77-82[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 21654 - Périodique Bibliothèque principale Documentaires Disponible Preparation and property analysis of composite plate for furniture decoration made from regenerated leather, CR adhesive and pineapple leaf fibre (RL/CR/PLF) / Yali Ou in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 107, N° 4 (07-08/2023)
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Titre : Preparation and property analysis of composite plate for furniture decoration made from regenerated leather, CR adhesive and pineapple leaf fibre (RL/CR/PLF) Type de document : texte imprimé Auteurs : Yali Ou, Auteur ; Hongwei Yi, Auteur ; Yinghua Ma, Auteur Année de publication : 2023 Article en page(s) : p. 139-144 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Ameublement -- Conception et construction
Ananas et constituants
Caoutchouc
Colles:Adhésifs
Composites à fibres végétales
Composites à fibres végétales -- Propriétés mécaniques
Composites à fibres végétales -- Propriétés physiques
Etudes comparatives
Matériaux -- Régénération
Plaques (ingénierie)
PolychloroprèneIndex. décimale : 675 Technologie du cuir et de la fourrure Résumé : In this experiment, composite furniture decoration plate was prepared by a hot pressing process with pineapple leaf fibre added into the composite material made using Regenerated leather/Chloroprene Rubber Adhesive (RL/CR/PLF). It was found that the best appearance of the composite plate was that prepared by adding 15% pineapple leaf fibre. Compared with the composite plate without pineapple leaf fibre, it was found that the tensile strength, elongation at break, collapse height, collapse strength and air permeability were reduced compared with the original, while the water permeability, surface wettability and water absorption were greatly improved. Note de contenu : - PREPARATION OF COMPOSITE PLATE : Made with regenerated leather, CR adhesive and pineapple leaf fibre (RL/CR/PLF) - Preparation of RL/FR/PLF composites plates
- APPEARANCE OF RL/CR/PLF
- MECHANISM ANALYSIS OF INFLUENCE OF PINEAPPLE LEAF FIBRE SUPPLEMENTAL LEVEL ON RL/CR/PLF PROPERTIES
- ANALYSIS OF PHYSICAL AND MECHANICAL PROPERTIES OF RL/CR/PLF COMPOSITE PLATE : Comparative analysis of mechanical properties of RL/CR/PLF and RL/CR - Comparative analysis of the physical properties of CR/PLF and RL/CR
- Table 1 : The physical and mechanical properties of RL/CR/PLF and RL/CREn ligne : https://drive.google.com/file/d/17KU-NRVqlOkZEyasTU7cJmeec7sXOQgO/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=39687
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 107, N° 4 (07-08/2023) . - p. 139-144[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 24155 - Périodique Bibliothèque principale Documentaires Disponible Preparation of leather-based free-standing electrode and its electrochemical performance / Fei Ma in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 105, N° 2 (03-04/2021)
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Titre : Preparation of leather-based free-standing electrode and its electrochemical performance Type de document : texte imprimé Auteurs : Fei Ma, Auteur ; Ding Shaolan, Auteur ; Ren Huijun, Auteur ; Ren Jun, Auteur ; Liang Jianfang, Auteur ; yue Wang, Auteur ; Yinghua Ma, Auteur Année de publication : 2021 Article en page(s) : p. 95-104 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Caractérisation
Carbone
Cuir
Electrochimie
Electrodes
Energie -- Stockage
Plaques (ingénierie)
Surfaces -- AnalyseIndex. décimale : 675 Technologie du cuir et de la fourrure Résumé : Based on the high proportion of nitrogen content and natural pore structure of leather, this paper uses discarded leather as a raw material to prepare a nitrogen-doped leather-based free-standing carbon sheet by a high-temperature carbonisation-air activation method. The porous carbon sheets are prepared with a relatively high surface area, and there are some partial micropores and mesopores in the well-interconnected macropores. The results show that the carbon sheets reveal a lower internai resistance in the 6mol L-1 KOH electrolyte used as a supercapacitor electrode. When the current density is 0.5A.g-1, ALCS-300 (Activated Leather Carbon Slices) obtains a specific capacitance of 136.5F.g-1. In addition, it has excellent cycle stability. After 5000 cycles at a current density of 1A.g-1, the specific capacity retention rate is 94.5%. Since it eliminates the need to add any chemical reagents and is low in cost during the carbonisation-activation (air) process, it does not require additional adhesives, conductive agents and current collectors during electrode assembly, which can further simplify the assembly process, so it provides a good alternative to carbon electrodes for energy storage device. Note de contenu : - EXPERIMENTAL PROCEDURES : Experimental materials and reagents - Preparation of N-doped leather-based carbon sheets - Material characterisation - Electrochemical test
- RESULTS AND DISCUSSION : Structure and morphological analyses of leather-based free-standing carbon sheets - Analyses of specific surface area and pore structure of leather-based free-standing carbon sheets - XRD analyses of leather-based free-standing carbon sheet - Raman spectroscopy analyses of leather-based free-standing carbon sheets - X-ray photoelectron spectroscopy analyses of leather-based free-standing carbon sheets - Exploration of the formation mechanism of the pore structures of the leather-based free-standing carbon sheet - Analyses of the electrochemical properties of leather-based freestanding carbon sheets
- Table 1 :Specific surface areas and pore volumes of LCS-900 and ALCS-300
- Table 2 : Elemental analyses of LCS-900 and ALCS-300 samplesEn ligne : https://drive.google.com/file/d/1f3dvuwDee2tn_pizU7434rfxdozGg7aQ/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=35548
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Code-barres Cote Support Localisation Section Disponibilité 22651 - Périodique Bibliothèque principale Documentaires Disponible