Breathable film from reactive processing of LLDPE/NR blends with ENR and maleic anhydride / P. Tasanatanachai in INTERNATIONAL POLYMER PROCESSING, Vol. XXIII, N° 2 (05/2008)  

[article]  inINTERNATIONAL POLYMER PROCESSING > Vol. XXIII, N° 2 (05/2008) . - p. 146-151 Titre : Breathable film from reactive processing of LLDPE/NR blends with ENR and maleic anhydride Type de document : texte imprimé Auteurs : P. Tasanatanachai, Auteur ; N. Singsat, Auteur ; A. M. Jamieson, Auteur ; R. Magaraphan, Auteur Année de publication : 2008 Article en page(s) : p. 146-151 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 668.9 Polymères Résumé : The high oxygen permeability film, so-called breathable film, can be produced via reactive blending and processing of linear-low density polyethylene, natural rubber, and epoxidized natural rubber with a small content of maleic anhydride as a reactive coagent. The foam-like structure of the produced breathable film was created by the reaction between the functional groups during the extrusion. Oxygen permeability of the blended films can be controlled by the blend composition, screw speed, and draw ratio during the chill-roll casting step. The blended films exhibit not only the good breathablility but also the outstanding UV screening with a small transparency trade-off. These properties are suitable for the films to be used in agricultural applications to enhance the growing and production of fruit trees, flowers, vegetables, and even grains, especially during the growing stage of plants. DOI : 10.3139/217.2021 En ligne : https://drive.google.com/file/d/1i-dp2NKAmyEhHxTdnTzQPexd-5ilHh4C/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=2641 [article]

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Rheological modification of LLDPE through reactive processing with peroxide / P. Tasanatanachai in INTERNATIONAL POLYMER PROCESSING, Vol. XXIII, N° 2 (05/2008)  

[article]  inINTERNATIONAL POLYMER PROCESSING > Vol. XXIII, N° 2 (05/2008) . - p. 168-172 Titre : Rheological modification of LLDPE through reactive processing with peroxide Type de document : texte imprimé Auteurs : P. Tasanatanachai, Auteur ; C. Tzoganakis, Auteur ; R. Magaraphan, Auteur Année de publication : 2008 Article en page(s) : p. 168-172 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 668.9 Polymères Résumé : The presence of long-chain branching provides advantageous properties to a molten polymer in film production, especially for a fast growing commodity plastic such as polyethylene. Besides the innovation of polymerization, the most attractive method to tailor the molecular structure is peroxide modification via reactive processing which is the post-reactor technique. By this process, it can achieve the enhancement of ability of the melt to be drawn or stretched during the film processing due to branching. However, to avoid the undesired excess of macroscopic molecular network, which may cause defects in the film product, a small quantity of peroxide initiator was used to modify the base resin. The rheological properties, as related to molecular characteristics, were investigated using a capillary rheometer. Rheological analysis of the products modified by different peroxide addition methods was of interest as changes in rheological properties depend markedly on the efficiency of incorporating and mixing the peroxide into the polymer. Process parameters (including mixing temperature, peroxide quantity, and mixing speed), which appear to be responsible for the molecular characteristics alteration, were considered in order to produce materials with preferred rheological properties. DOI : 10.3139/217.2026 En ligne : https://drive.google.com/file/d/17RQo0g1fh804G96QRsqEoxueoVOCLNNs/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=2644 [article]

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