Results 311 to 320 of about 178,590 (332)

Experimental Research on the Blown Film Extrusion Process of Polyethylene

Journal of Plastic Film & Sheeting, 2001
Experimental studies of the blown film extrusion process presented in this paper aim at examining the influence of selected properties of constructional elements of intensive shearing and mixing on the characteristic of this process. The analysis concerned especially the influence of the thickness of the research gap between the inner surface of ...
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Photonic Crystals of Oblate Spheroids by Blown Film Extrusion of Prefabricated Colloidal Crystals

Langmuir, 2009
Three-dimensional photonic crystals (or photonic band gap materials) have been fabricated with oblate spheroids as the photonic building block. The nonspherical shape was realized by the blown film extrusion process of a prefabricated colloidal photonic crystal of spherical polystyrene particles, with its voids infiltrated by polyvinyl alcohol.
Tao, Ding, Zhan-Fang, Liu, Kai, Song, Koen, Clays, Chen-Ho, Tung   +4 more
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A Novel Processing Aid for Greater Flexibility in Blown Film Extrusion

Journal of Plastic Film & Sheeting, 1987
The high melt viscosity of linear low density polyethylene (LLDPE) presents several problems, particularly melt fracture, when this resin is processed on blown film equipment which has been designed for use with high pressure, low density polyethylene (LDPE) resin. With the help of processing aids, the same equipment may be used to process LLDPE, LDPE
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Effects of Anti-Block/Processing Aid Combinations On Lldpe Blown Film Extrusion

Journal of Plastic Film & Sheeting, 1989
Anti-block agents differing in composition, structure, and surface coating were compounded with fluorocarbon elastomer polymer processing aids (PPAs) in linear low density polyethylene. Separate and combined masterbatches of 20% anti-block and 2% PPA were melt mixed and let down to 5000 ppm and 500 ppm respectively.
Thomas J. Blong, Denis Duchesne
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Effect of Rheological Strain Hardening on Extrusion Blown Film of Polyvinylidene Fluoride

Journal of Plastic Film & Sheeting, 2007
In this work the effect of strain hardening on poly-vinylidene fluoride (PVDF) extrusion blown film is investigated. Controlled long chain branching is introduced via a multi-functional initiator to produce two PVDF samples with different molecular weight and chain architecture.
Nafaa Mekhilef, Lotfi Hedhli, Stephan Moyses   +2 more
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Blown film extrusion: experimental, modelling and numerical study

This thesis correlates rheological data into a non-linear blown film model that describes the stress and cooling-induced morphological transformations in the axial and flow profiles of the blown films. This will help to improve the physical and mechanical properties of the films in a cost effective way, which will in turn be of great benefit to the ...
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Extrusion-blown oxidized starch/poly(butylene adipate-co-terephthalate) biodegradable active films with adequate material properties and antimicrobial activities for chilled pork preservation.

International Journal of Biological Macromolecules, 2023
Huan Li, Zhuo Chen, Shuidong Zhang, Chang-Ying Hu, Xiaowen Xu   +4 more
semanticscholar   +1 more source

Blown film extrusion of PBAT/TPS/ZnO nanocomposites for shelf-life extension of meat packaging.

Colloids and Surfaces B: Biointerfaces, 2022
Danaya Phothisarattana, Phanwipa Wongphan, Khwanchat Promhuad, Juthathip Promsorn, N. Harnkarnsujarit   +4 more
semanticscholar   +1 more source

Extrusion-blown starch/PBAT biodegradable active films incorporated with high retentions of tea polyphenols and the release kinetics into food simulants.

International Journal of Biological Macromolecules, 2022
Xiaosong Zhai, Min Li, Rui Zhang, Wentao Wang, Hanxue Hou   +4 more
semanticscholar   +1 more source

Analysis of changes in geometric parameters of spiral mandrel die for blown film extrusion on plastic flow parameters using solidworks flow application

AIP Conference Proceedings, 2023
P. Cyprys, M. Macko
semanticscholar   +1 more source