MINERAL-FILLED POLYMERIC MEMBRANES: Processing and characterization of the case study of mineral-filled (calcium carbonate or talc) polypropylene porous membranes obtained by extrusion
Dr KIAN HABIBI yazarının MINERAL-FILLED POLYMERIC MEMBRANES: Processing and characterization of the case study of mineral-filled (calcium carbonate or talc) polypropylene porous membranes obtained by extrusion kitabı da dahil olmak üzere birçok dosya aşağıdaki bölümleri de içerebilir:
- imza dosyası: çeşitli varlıklar için dijital imzalar içerir.
- şifreleme.xml: yayımlama kaynaklarının şifrelenmesiyle ilgili bilgileri içerir. (Yazı tipi gizleme kullanılıyorsa bu dosya gereklidir.)
- meta veriler: kapsayıcı hakkında meta verileri depolamak için kullanılır.
- haklar: MINERAL-FILLED POLYMERIC MEMBRANES: Processing and characterization of the case study of mineral-filled (calcium carbonate or talc) polypropylene porous membranes obtained by extrusion kitabının dijital haklarıyla ilgili bilgileri depolamak için kullanılır.
XHTML içerik belgeleri ayrıca zengin meta verilerle MINERAL-FILLED POLYMERIC MEMBRANES: Processing and characterization of the case study of mineral-filled (calcium carbonate or talc) polypropylene porous membranes obtained by extrusion kitap işaretlemesine açıklama ekleme olanakları içerir, bu da onları hem işleme hem de erişilebilirlik amaçları için anlamsal olarak daha anlamlı ve kullanışlı hale getirir.
E içerik belgeleri, bir yayının okunabilir içeriğini tanımlayan ve ilgili medya varlıklarına (görüntüler, ses ve video klipler gibi) bağlantı veren XHTML (HTML5 profili tarafından tanımlanır) veya SVG belgeleri vb.'dir.
yazar | Dr KIAN HABIBI |
---|---|
Boyutlar ve boyutlar | 15.24 x 1.09 x 22.86 cm |
Tarafından yayınlandı | 1 Eylül 2020 |
31 Ağustos 2012 Icon Group International United States Congress 21,6 x 0,2 x 27,9 cm 3 Ocak 2017 20,3 x 0,6 x 25,4 cm 21,6 x 0,6 x 27,9 cm Collectif 17.78 x 0.61 x 25.4 cm Babadada Gmbh 4 Ocak 2017 1 x 13,5 x 21 cm 1 Eylül 2020 HardPress Publishing Kolektif 5 Ocak 2017 14.81 x 0.48 x 21.01 cm 28 Şubat 2018
okumak okumak kayıt olmadan
yazar | Dr KIAN HABIBI Dr DAVID ARENCÓN OSUNA |
---|---|
isbn 13 | 979-8681263470 |
Yayımcı | Independently published |
Boyutlar ve boyutlar | 15.24 x 1.09 x 22.86 cm |
DE OLDUĞU GİBİ | B08HJ536MK |
Tarafından yayınlandı MINERAL-FILLED POLYMERIC MEMBRANES: Processing and characterization of the case study of mineral-filled (calcium carbonate or talc) polypropylene porous membranes obtained by extrusion | 1 Eylül 2020 |
Microporous membranes are commonly used in separation processes such as battery separators or medical applications to control the permeation rate of chemical components due to the wide range of chemical structures, optimum physical properties, and low cost of polymers and polymer blends. These materials are known as the best candidates for the fabrication of microporous membranes. This book provides ample explanation for the production of microporous polypropylene membranes through the MEAUS process. The two main techniques to develop polymeric membranes are solution casting and extrusion followed by stretching. High cost and solvent contamination are the main drawbacks of the solution technique. Techniques to make porous membranes from polymers without using any solvent developed in the seventies of the last century for some applications, but most of the information on these processes remains proprietary to the companies and are not available to the scientific community. One of the techniques to fabricate microporous membranes is MEAUS (melt extrusion – annealing – uniaxial strain). It is based on the stretching of a polymer film containing a row-nucleated lamellar structure. Then, three consecutive stages carried out to obtain porous membranes: (1) creating a precursor film having a row-nucleated lamellar structure by mechanisms of shear and elongation-induced crystallization, (2) annealing the precursor film at temperatures near the melting point of the resin to remove imperfections in the crystalline phase and to increase lamellae thickness, and (3) stretching at low and high temperatures to create and then enlarge pores, respectively. In fact, in this process, the material variables, as well as the applied processing conditions, are key parameters that control the structure and the final properties of the fabricated microporous membranes. The material variables include molecular weight, molecular weight distribution, and chain structure of the polymer. These factors mainly influence the row-nucleated structure in the precursor films at the first step of the formation of microporous membranes. In the MEAUS process, the extrusion and production of the precursor films is a delicate process since the samples should be produced under a high draw ratio, and cooling rates. Obtaining a very uniform film is a major concern since any non-uniformity and thickness variations cause irregularities in the stress distribution. This method is relatively less expensive and there is no solvent contamination. Some drawbacks of the technology and industrial market of these products are the difficulty to have a homogenous distribution of the pore morphology created, and the narrow range of polymers that can create the initial row-lamellar structure.
En son kitaplar
benzer kitaplar
I Thème dragon I Agenda 2020-2021: Primaire, Collège, Lycée, Etudiant Toute l'année scolaire avec les différentes zones et la liste des jours fériés
okumak kayıt olmadan
Fröhliche Spielideen: für Regen-, Streit- und Muffeltage, bei schlechter Laune, zum Wachwerden oder Trösten (Die Praxisreihe für Kindergarten und Kita)
okumak kayıt olmadan
I Thème dragon I Agenda 2020-2021: Primaire, Collège, Lycée, Etudiant Toute l'année scolaire avec les différentes zones et la liste des jours fériés
okumak kayıt olmadan
Fröhliche Spielideen: für Regen-, Streit- und Muffeltage, bei schlechter Laune, zum Wachwerden oder Trösten (Die Praxisreihe für Kindergarten und Kita)
okumak kayıt olmadan