Accueil
Catégories
Ajouter le résultat dans votre panier Affiner la recherche
Etendre la recherche sur niveau(x) vers le bas
Investigation on mechanical, thermal and water absorption properties of banana/coir reinforced polypropylene hybrid composites / Bujjibabu Gunturu in REVUE DES COMPOSITES ET DES MATERIAUX AVANCES, Vol. 30, N° 3-4 (08/2020)
[article]
Titre : Investigation on mechanical, thermal and water absorption properties of banana/coir reinforced polypropylene hybrid composites Type de document : texte imprimé Auteurs : Bujjibabu Gunturu, Auteur ; Chittaranjandas Vemulapalli, Auteur ; Ramakrishna Malkapuram, Auteur ; Nagarjuna Konduru, Auteur Année de publication : 2020 Article en page(s) : p. 123-131 Note générale : Bibliogr. Langues : Français (fre) Catégories : Composites à fibres végétales -- Propriétés mécaniques
Composites à fibres végétales -- Propriétés thermiques
Diffractométrie de rayons X
Fibres de banane
Fibres de coco
Flexion (mécanique)
Fourier, Spectroscopie infrarouge à transformée de
Humidité -- Absorption:Eau -- Absorption
Polypropylène
Résistance au chocs
Thermogravimétrie
Traction (mécanique)Index. décimale : 668.4 Plastiques, vinyles Résumé : This study explores the merits of B/C fibers reinforced polypropylene to developed high mechanical performance, cost effective and light weight hybrid composite. B/C fibers reinforced polypropylene hybrid composites were prepared with different proportions. Variation in Banana, Coir and B/C fibers in hybrid composites, reveal the tensile, flexural, impact strength and water absorption. The PP and Banana, Coir fibers reinforced Composites were prepared by the twin screw extrusion of PP 80% with B-20, C-20 and B/C 15/5, 10/10 and 5/15 wt%. After extrusion, the extraction strands cut into pallets and injection molded machine make the test specimens. It was found that maximum tensile strength, the flexural strength and the impact strength at 20% of banana fiber. Tensile, flexural and impact strengths marginally have been decreased when decrease the banana fiber in the B/C fiber reinforced polypropylene hybrid composites. Also observed water absorption of same composites for 24 hrs., 48 hrs. and 72 hrs. Thermogravimetry analysis (TGA), fourier transform infrared spectroscopy (FTIR) and XRD (X ray diffraction) was examined. Note de contenu : - MATERIALS AND METHODS : Materials - Manufacturing of composites - Mechanical testing - Water absorption - Thermal properties - FTIR - XRD (X-ray diffraction)
- RESULTS AND DISCUSSION : Tensile properties - Flexural properties - Impact strength - Water absorption - TGA &DTG - FTIR - XRD analysis
- Table 1 : Mechanical properties of B/C reinforced polypropylene hybrid composites
- Table 2 : Percentage of water absorption of B/C fiber reinforced polypropylene hybrid composite
- Table 3 : Functional groups of hybrid compositesDOI : https://doi.org/10.18280/rcma.303-402 En ligne : https://www.iieta.org/download/file/fid/39662 Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=37638
in REVUE DES COMPOSITES ET DES MATERIAUX AVANCES > Vol. 30, N° 3-4 (08/2020) . - p. 123-131[article]
[article]
Titre : Invisible protection : Organosilicon-based hydrophobic impregnation treatments for wood Type de document : texte imprimé Auteurs : Jean-paul Lecomte, Auteur ; Sabrina Salvati, Auteur ; S. Derocker, Auteur ; Joris van Acker, Auteur ; Jan van den Bulcke, Auteur ; M. Kutnik, Auteur ; M. Montibus, Auteur Année de publication : 2018 Article en page(s) : p. 46-52 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Alkytrialcoxysilane
Antifongiques
Bois -- Revêtements protecteurs
Essais (technologie)
Humidité -- Absorption:Eau -- Absorption
Humidité -- Mesure
Hydrophobie
Imperméabilisation
Insecticides
Matériaux -- Imprégnation
Organosilicones
Pins et constituants
PolydiméthylsiloxaneLe polydiméthylsiloxane —[O-Si(CH3)2]n—, ou poly(diméthylsiloxane) selon la nomenclature systématique, communément appelé PDMS ou diméthicone, est un polymère organominéral de la famille des siloxanes souvent présent dans les shampoings. On l'y ajoute pour augmenter le volume des cheveux mais il peut également aller boucher les pores du cuir chevelu et rendre les cheveux gras. C'est une des raisons pour lesquelles se laver les cheveux tous les jours est très déconseillé avec un shampooing contenant des silicones.
Il existe également de l'amodiméthicone, qui est un dérivé du diméthicone.
Le polydiméthylsiloxane est un additif alimentaire (E900), utilisé comme antimoussant dans les boissons (Coca-Cola BlāK).
La chaîne de poly(diméthylsiloxane) forme également la structure de base des huiles et des caoutchoucs silicones.Index. décimale : 667.9 Revêtements et enduits Résumé : An EU-funded project seeks to demonstrate that treatments with silicon-based hydrophobisers can protect exterior wood against water penetration, extend its service life and so potentially minimize the use of biocides. Both brush and vacuum impregnation processes showed significant levels of protection and a reduction in water pick-up. Note de contenu : - Five impregnating materials tested
- Wood specimens and application test protocols
- Vacuum process pick-up depends mainly on wood type
- Details of water repellent application by brushing
- Application methods and products compared
- Significant protection against wood damaging fungi
- Partial protection against subterranean termites
- Field testing confirms differences in water pick-up
- Significant though variable benefits achieved
- FIGURES : 1. Structure of polydimethylsiloxane, alkyl trialkoxysilane and schematic representation of a silicone resin (R can be ethoxy, methoxy, R1 can be methyl, phenyl or octyl groups) – 2. Experimental set-up to measure ‘longitudinal water absorption’ – 3. Water uptake (as % of initial wood specimen’s dry weight) as a function of contact time with water and after 72 hours, as a function of drying time – 4. ‘Longitudinal’ water absorption (as % of water uptake vs initial dry weight) after 48 hours contact time with water for the wood specimens treated by brushing with the selected water repellents – 5. The continuous moisture measurement (CMM) setup – 6. Continuous moisture measurement (CMM) of Scots pine sapwood treated with hydrophobic products
- TABLES : Weight percent gain after vacuum impregnation or brushing of wood with different water repellents – 2. Contact angles of water droplets placed on the different treated wood specimensEn ligne : https://drive.google.com/file/d/13ePoeEtv0RqpQL3UD-aGwxmO-sinmJRH/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=30199
in EUROPEAN COATINGS JOURNAL (ECJ) > N° 2 (02/2018) . - p. 46-52[article]Réservation
Réserver ce document
Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 19608 - Périodique Bibliothèque principale Documentaires Disponible
[article]
Titre : Keeping protection in the clear : Top and base coat show very different water uptake characteristics Type de document : texte imprimé Auteurs : Henk Huinink, Auteur ; Viktor Baukh, Auteur ; Bart Erich, Auteur ; Olaf Adan, Auteur ; Leo Van Der Ven, Auteur Année de publication : 2012 Article en page(s) : p. 38-42 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Automobiles -- Revêtements:Automobiles -- Peinture
Humidité -- Absorption
Revêtements multicouches
Spectroscopie de la résonance magnétique nucléaireIndex. décimale : 667.9 Revêtements et enduits Résumé : - Two-layer automotive coatings consisting of a solventborne crosslinked to layer and waterborne physically dried base layer were studied by high resolution NMR. The top coat was shown to limit the rate of water ingress, while water uptake is mainly governed by base coat properties. The results also show that the sorption behaviour of coatings can be studied by simpler techniques. Note de contenu : - Details of coating systems tested
- How moisture profiles are measured by NMR
- Profiling the water content of the coating
- A model for water uptake
- Co-curing modifies barrier properties of top coat
- Water uptake of base coat is relatively slow
- Water uptake of different components studied
- Water accumulates near the dispersant
- Model shows scope for simpler testingEn ligne : https://drive.google.com/file/d/1kI52LQesKzHKUjSDeOaXyrvW114A-tOD/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=19579
in EUROPEAN COATINGS JOURNAL (ECJ) > N° 11 (11/2012) . - p. 38-42[article]Réservation
Réserver ce document
Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 14258 - Périodique Bibliothèque principale Documentaires Disponible Laser drilled spinnerets for cellulose fiber with new properties in CHEMICAL FIBERS INTERNATIONAL, Vol. 67, N° 1 (03/2017)
[article]
Titre : Laser drilled spinnerets for cellulose fiber with new properties Type de document : texte imprimé Année de publication : 2017 Langues : Anglais (eng) Catégories : Cellulose La cellulose est un glucide constitué d'une chaîne linéaire de molécules de D-Glucose (entre 200 et 14 000) et principal constituant des végétaux et en particulier de la paroi de leurs cellules.
Fibres cellulosiques
Fibres textiles synthétiques
Filtres
Humidité -- Absorption
Lasers -- Applications industrielles
MicrofibresIndex. décimale : 677.4 Textiles artificiels Résumé : A stainless steel disc around 4 mm thick, is illuminated by a bright green beam of laser light. With high energy, the ultra-short-pulsed laser beam bores into the surface of the metal repeatedly, until a large number of hales have been made. What is produced at the Institute of Laser Technologies (IFSW) at the University of Stuttgart/Germany is the result of a joint research project together with the Instituts of Textile Chemistry and Chemical Fibers (ITCF) in Denkendorf/Germany: spinnerets with a diameter of 30-40 pm, much finer than a human hair, which are utilized in the production of ultra-fine cellulose fibers, or so-called micro- or supermicrofibers.
Microfibers which are made of different polymers finer than 1 dtex, that corresponds to 1 g per 10,000 m of fiber length. Supermicrofibers are fibers whose fineness is even less than 0.3 dtex. The diameter of such fibers is approx. 3 pm. Due to their large surface area, such fibers are particularly suitable for use in the fields of hygiene and medicine, due to the high moisture absorption capacity and the soft handle of textile products made from them. They are also effectively utilized within the industrial sector as technical textiles, for example in filters, as they are fine and extremely strong.Note de contenu : - New ways of producing microfibers
- Defined nozzle geometry determines fiber properties
- FIGURES : 1. Laser with helical drilling robot in operation - 2. Laser-drilled spinneret made of 3 mm silicon nitrideEn ligne : https://drive.google.com/file/d/1iQiaXFbeoqQ7JP_Dh5iAh4xn79kBFB67/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=28293
in CHEMICAL FIBERS INTERNATIONAL > Vol. 67, N° 1 (03/2017)[article]Réservation
Réserver ce document
Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 18815 - Périodique Bibliothèque principale Documentaires Disponible Locational differences in the physical properties of sole leather / P. L. Muthiah in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 60 (Année 1976)
[article]
Titre : Locational differences in the physical properties of sole leather Type de document : texte imprimé Auteurs : P. L. Muthiah, Auteur ; N. Ramanathan, Auteur Année de publication : 1976 Article en page(s) : p. 63-76 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Cuirs et peaux -- Propriétés mécaniques
Cuirs et peaux -- Propriétés physiques
Densité
Eau
Evaluation
Humidité -- Absorption
Pénétration (physique)
Perméabilité
Semelles
Tannage au chrome
Tannage végétal
Vapeur d'eauIndex. décimale : 675.2 Préparation du cuir naturel. Tannage Résumé : In order to find out the locational differences of different types of sole leathers, studies were made on samples obtained from various parts of tanned hides. For this study, the most commonly used chrome and vegetable tannages were used and the leathers were tested both in the crust and in the finished state for various physical properties. Tensile strength, elongation at break, apparent density, real density, air space, water absorption, water penetration, moisture absorption, water vapour permeability, air permeability, compressibility, resiliency, abrasion resistance and flexibility were determined on samples taken from eight different locations. The effects of tanning were assessed by determining the same physical properties on acetone dehydrated limed and delimed samples obtained from various parts of the hides. Note de contenu : - EXPERIMENTAL : Vegetable tanning - Chrome tanning
- EVALUATION OF PROPERTIES : Physical properties - Evaluation of results
- RESULTS AND DISCUSSION : Extension at break - Apparent density, real density and air space - Water absorption and water penetration - Moisture absorption - Water vapour permeability and air permeability - Abrasion and flexibilityEn ligne : https://drive.google.com/file/d/1zFimkJaKgjUTRAQBxARW0y20ESbA92uy/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=31803
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 60 (Année 1976) . - p. 63-76[article]Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 008596 - Périodique Archives Documentaires Exclu du prêt Locational differences in the physical properties of sole leather / P. L. Muthiah in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 60, N° 3 (05-06/1976)
PermalinkLocational differences in the physical properties of upper leather / P. L. Muthiah in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 60 (Année 1976)
PermalinkLocational differences in the physical properties of upper leather / P. L. Muthiah in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 60, N° 3 (05-06/1976)
PermalinkMechanical, curing parameters and water absorption of hybrid date palm leaf-orange peel fibers reinforced unsaturated polyester composites / Hamza Chelali in REVUE DES COMPOSITES ET DES MATERIAUX AVANCES, Vol. 31, N° 3 (06/2021)
PermalinkMechanical, morphological, thermal and dynamic study of composites of unsaturated polyesters-Date palm leaf Fiber DPLF / Abir Berkouk in REVUE DES COMPOSITES ET DES MATERIAUX AVANCES, Vol. 31, N° 6 (12/2021)
PermalinkMelamine fiber-synthesis, features and applications / Subhankar Maity in CHEMICAL FIBERS INTERNATIONAL, (10/2013)
PermalinkMesoporous magnesium carbonate for use in powder cosmetics / Erik Bamford in INTERNATIONAL JOURNAL OF COSMETIC SCIENCE, Vol. 43, N° 1 (02/2021)
PermalinkMicro-polyester filament yarns and their fabric moisture transport characteristics for sportwear applications / S. M. Udaya Krithika in CHEMICAL FIBERS INTERNATIONAL, Vol. 70, N° 4 (12/2020)
PermalinkPermalinkModification of collagen hydrosylate be edac / Keyong Tang in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 92, N° 1 (01-02/2008)
PermalinkA moisture-absorbing and abrasion-resistant transparent coating on polystyrene / Svenja Grube in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 12, N° 4 (07/2015)
PermalinkMoisture absorption and liberation behavior of novel hollow viscose fiber / Yue Mao in CHEMICAL FIBERS INTERNATIONAL, Vol. 66, N° 3 (10/2016)
PermalinkMoisture management finish of polyamide fiber fabrics for athleisure / Naresh M. Saraf in TECHNICAL TEXTILES, Vol. 66, N° 1 (2023)
PermalinkMoisture management finish of polyamide fiber fabrics for athleisure / Naresh M. Saraf in MAN-MADE FIBERS INTERNATIONAL, Vol. 73, N° 3 (2023)
PermalinkMonomers coursing through the veins / Roland Klein in KUNSTSTOFFE INTERNATIONAL, Vol. 108, N° 1-2 (01-02/2018)
Permalink