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Die design optimization for extrusio...

Ogale, Madhurima.

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Die design optimization for extrusion and multilayer co-extrusion processes to attain layer stability and uniformity.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Die design optimization for extrusion and multilayer co-extrusion processes to attain layer stability and uniformity./
Author:	Ogale, Madhurima.
Description:	171 p.
Notes:	Source: Masters Abstracts International, Volume: 48-01, page: 6000.
Contained By:	Masters Abstracts International48-01.
Subject:	Plastics. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=1471389
ISBN:	9781109372939

Die design optimization for extrusion and multilayer co-extrusion processes to attain layer stability and uniformity.
Ogale, Madhurima.

Die design optimization for extrusion and multilayer co-extrusion processes to attain layer stability and uniformity. - 171 p.

Source: Masters Abstracts International, Volume: 48-01, page: 6000.

Thesis (M.S.)--University of Massachusetts Lowell, 2009.

This item is not available from ProQuest Dissertations & Theses.

Multilayer materials offer benefits in terms of new materials for packaging, barrier and other applications. The ability to maintain layer stability and uniformity as the polymers flow into different die designs is important in co-extrusion. This work investigates the effect of die design---including manifold design and use of a secondary manifold region---in fabricating multilayer films.

ISBN: 9781109372939Subjects--Topical Terms:

649803
Plastics.

Die design optimization for extrusion and multilayer co-extrusion processes to attain layer stability and uniformity.
LDR:02364nmm a2200301 4500 001 2115167
005 20170217105123.5
008 180830s2009 ||||||||||||||||| ||eng d
020 $a 9781109372939
035 $a (MiAaPQ)AAI1471389
035 $a AAI1471389
040 $a MiAaPQ $c MiAaPQ
100 1 $a Ogale, Madhurima. $3 3276806
245 1 0 $a Die design optimization for extrusion and multilayer co-extrusion processes to attain layer stability and uniformity.
300 $a 171 p.
500 $a Source: Masters Abstracts International, Volume: 48-01, page: 6000.
500 $a Advisers: Joey L. Mead; Carol Forance Barry; Stephen A. Orroth.
502 $a Thesis (M.S.)--University of Massachusetts Lowell, 2009.
506 $a This item is not available from ProQuest Dissertations & Theses.
520 $a Multilayer materials offer benefits in terms of new materials for packaging, barrier and other applications. The ability to maintain layer stability and uniformity as the polymers flow into different die designs is important in co-extrusion. This work investigates the effect of die design---including manifold design and use of a secondary manifold region---in fabricating multilayer films.
520 $a Three dimensional mono layer simulations were carried out for polypropylene material to evaluate different die designs. Multilayer simulations were carried out for horizontal and vertical layering systems using polypropylene and PMMA as flow materials to test the die designs for layer stability and uniformity using Polyflow Software.
520 $a Mono-layer and multilayer simulations showed better results for elongated tear drop shaped manifold as compared to a tear drop shaped manifold with respect to shear stresses. Results for horizontal layering showed that a secondary manifold region could prove beneficial for horizontal layering as it reduced the overall stresses in the die. For vertical layering, a larger manifold backwall angle gave rise to a much gradual flow making the flow pattern more streamlined. Results for vertical layering showed that a secondary manifold led to sideway movement of layers making the layer flow unstable.
590 $a School code: 0111.
650 4 $a Plastics. $3 649803
690 $a 0795
710 2 $a University of Massachusetts Lowell. $3 1017839
773 0 $t Masters Abstracts International $g 48-01.
790 $a 0111
791 $a M.S.
792 $a 2009
793 $a English
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=1471389