1. 2. 3. 4. 5. 6. © Effect Of Short Chain Branching Of LDPE On Its Miscibility With Linear HDPE...
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1. 2. 3. 4. 5. 6. © Effect Of Short Chain Branching Of LDPE On Its Miscibility With Linear HDPE Hameed, T; Hussein, IA WILEY-V C H VERLAG GMBH, MACROMOLECULAR MATERIALS AND ENGINEERING; pp: 198-203; Vol: 289 King Fahd University of Petroleum & Minerals http://www.kfupm.edu.sa Summary influences of short chain branching (SBC) on the melt miscibility of low-den yethylene (LDPE) with linear high-density polyethylene (HDPE) were investigat rheological methods. Two LDPE resins with different branch contents nded with the same linear HDPE. Dynamic and steady shear measurements were ried out using a Rheometrics ARES rheometer at 190degreesC. The rheology of low-SCB LDPE (9 CH3/1 000 C) blends with HDPE can be predicted by the ear additivity rule. Hence, blends wee suggested to be completely miscible at positions. However, blends of the high branch content LDPE (SCB = 19 CH3/1 C) were completely immiscible. Also, the different viscous and elastic prope all the immiscible blends were much higher than the corresponding values for e viscous and elastic blend component. The ratio of interfacial tension to dr ius was estimated from Scholz et al. model as approximate to1 500 N . m(-2). el of SCB in LDPE was found to have a strong influence on its miscibility wit ear HDPE. References: AGAMALIAN M, 1999, MACROMOLECULES, V32, P3093 ALAMO RG, 1994, MACROMOLECULES, V27, P2864 BARHAM PJ, 1988, J MATER SCI LETT, V7, P1271 BRAHIMI B, 1991, J RHEOL, V35, P1069 CHAUNG CI, 1984, J APPL POLYM SCI, V29, P2205 CHO K, 1989, POLYM ENG SCI, V29, P1969 Copyright: King Fahd University of Petroleum & Minerals; http://www.kfupm.edu.sa
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Transcript of 1. 2. 3. 4. 5. 6. © Effect Of Short Chain Branching Of LDPE On Its Miscibility With Linear HDPE...
1.2.3.4.5.6.
©
Effect Of Short Chain Branching Of LDPE On Its Miscibility
With Linear
HDPE
Hameed, T; Hussein, IA
WILEY-V C H VERLAG GMBH, MACROMOLECULAR MATERIALS AND
ENGINEERING; pp: 198-203; Vol: 289
King Fahd University of Petroleum & Minerals
http://www.kfupm.edu.sa
Summary
The influences of short chain branching (SBC) on the melt miscibility of low-density
polyethylene (LDPE) with linear high-density polyethylene (HDPE) were investigated
by rheological methods. Two LDPE resins with different branch contents were
blended with the same linear HDPE. Dynamic and steady shear measurements were
carried out using a Rheometrics ARES rheometer at 190degreesC. The rheology of
the low-SCB LDPE (9 CH3/1 000 C) blends with HDPE can be predicted by the
linear additivity rule. Hence, blends wee suggested to be completely miscible at all
compositions. However, blends of the high branch content LDPE (SCB = 19 CH3/1
000 C) were completely immiscible. Also, the different viscous and elastic properties
of all the immiscible blends were much higher than the corresponding values for the
more viscous and elastic blend component. The ratio of interfacial tension to droplet
radius was estimated from Scholz et al. model as approximate to1 500 N . m(-2). The
level of SCB in LDPE was found to have a strong influence on its miscibility with
linear HDPE.
References:AGAMALIAN M, 1999, MACROMOLECULES, V32, P3093ALAMO RG, 1994, MACROMOLECULES, V27, P2864BARHAM PJ, 1988, J MATER SCI LETT, V7, P1271BRAHIMI B, 1991, J RHEOL, V35, P1069CHAUNG CI, 1984, J APPL POLYM SCI, V29, P2205CHO K, 1989, POLYM ENG SCI, V29, P1969
Copyright: King Fahd University of Petroleum & Minerals;http://www.kfupm.edu.sa
7.8.9.10.11.12.13.14.15.16.17.18.19.20.21.22.23.
©
CHOI P, 2000, POLYMER, V41, P8741CURTO D, 1983, RHEOL ACTA, V22, P197DOBRESCU V, 1980, RHEOLOGY, V2FAN ZGJ, 2002, POLYMER, V43, P1497FUJIYAMA M, 1991, J APPL POLYM SCI, V42, P481GARCIAREJON A, 1987, POLYM ENG SCI, V27, P640GRAEBLING D, 1993, MACROMOLECULES, V26, P320GRAMESPACHER H, 1992, J RHEOL, V36, P1127HAMEED T, 2002, POLYMER, V43, P6911HANSEN EW, 1997, POLYMER, V38, P4295HILL MJ, 1992, POLYMER, V33, P2530HILL MJ, 1992, POLYMER, V33, P4099HILL MJ, 1994, POLYMER, V35, P1991HILL MJ, 1997, J APPL POLYM SCI, V65, P1921HUSSEIN IA, 2000, POLYM DEGRAD STABIL, V68, P381HUSSEIN IA, 2001, POLYM ENG SCI, V41, P696HUSSEIN IA, 2003, MACROMOLECULES, V36, P2024, DOI
10.1021/ma025724524. HUSSEIN IA, 2003, MACROMOLECULES, V36, P4667, DOI
10.1021/ma030154+25. HUSSEIN IA, 2003, POLYMER, V44, P4665, DOI 10.1016/S0032-
3861(03)00437-326. LARSON RG, 1992, RHEOL ACTA, V31, P49727. LEE HS, 2000, POLYM ENG SCI, V40, P113228. LIU CY, 2002, POLYMER, V43, P381129. MARTINEZSALAZAR J, 1991, POLYMER, V32, P298430. MINALE M, 1997, MACROMOLECULES, V30, P547031. MUNOZESCALONA A, 1997, POLYMER, V38, P58932. NESARIKAR AR, 1995, MACROMOLECULES, V28, P720233. PLANS J, 1991, POLYMER, V32, P298934. SCHOLZ P, 1989, J RHEOL, V33, P48135. SHARKH BFA, 2002, POLYMER, V43, P633336. TANEM BS, 2001, POLYMER, V42, P430937. TANEM BS, 2001, POLYMER, V42, P568938. UTACKI LA, 1988, POLYM ENG SCI, V28, P140139. UTRACKI LA, 1989, POLYM ALLOYS BLENDS40. UTRACKI LA, 1991, 2 PHASE POLYM SYSTEM41. XU JT, 2001, POLYMER, V42, P3867
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