Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
Analysis of the bowing phenomenon in the tenter process of biaxially oriented polypropylene film
Autore:
Park, OO; Kim, SW; Il Park, C; Yang, SM;
Indirizzi:
Korea Adv Inst Sci & Technol, Dept Chem Engn, Ctr Adv Funct Polymers, Taejon 305701, South Korea Korea Adv Inst Sci & Technol Taejon South Korea 305701 5701, South Korea
Titolo Testata:
KOREAN JOURNAL OF CHEMICAL ENGINEERING
fascicolo: 3, volume: 18, anno: 2001,
pagine: 317 - 321
SICI:
0256-1115(200105)18:3<317:AOTBPI>2.0.ZU;2-D
Fonte:
ISI
Lingua:
ENG
Keywords:
polypropylene film; tenter process; bowing phenomenon; birefringence;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Engineering, Computing & Technology
Citazioni:
10
Recensione:
Indirizzi per estratti:
Indirizzo: Park, OO Korea Adv Inst Sci & Technol, Dept Chem Engn, Ctr Adv Funct Polymers, 373-1 Kusungdong,Yusonggu, Taejon 305701, South Korea Korea Adv Inst Sci & Technol 373-1 Kusungdong,Yusonggu Taejon South Korea 305701
Citazione:
O.O. Park et al., "Analysis of the bowing phenomenon in the tenter process of biaxially oriented polypropylene film", KOR J CHEM, 18(3), 2001, pp. 317-321

Abstract

In order to understand the bowing phenomenon in the tentering process of biaxially oriented polypropylene film, a simple mathematical model has been developed by considering the overall continuity equation and relevant momentum equations. The model has been solved analytically by employing a lubrication approximation for an isothermal, Newtonian fluid with variant densities depending upon the external deformation. Both velocity and stress profiles in the tenter process and also birefringence and extinction angle profiles can be calculated accordingly. Geometrical bowing is strongly dependent upon the degree of volume change during extensional deformation. Theoretical prediction is compared with experimental birefringence data with two types of PP resins and two different operation conditions to give us excellent agreement. It can be said that this model is applicable to other biaxially oriented film processes such as PET.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 20/09/20 alle ore 06:29:15