Anisotropic thermal conductivity in sheared polypropylene

Rheologica Acta

Volumn 45, Issue 3, 2006, Pages 228-238

  Dai, Shao Cong ^a   Tanner, Roger I ^a  

^a UNIVERSITY OF SYDNEY   (Australia)

Author keywords

Anisotropy; Polypropylene; Thermal conductivity

Indexed keywords

ANISOTROPY; CRYSTALLIZATION; DEFORMATION; DIFFERENTIAL SCANNING CALORIMETRY; INJECTION MOLDING; PLASTIC FLOW; POLYPROPYLENES; RHEOLOGY; STRAIN; STRESSES; THERMAL CONDUCTIVITY;

EID: 31144472614     PISSN: 00354511     EISSN: None     Source Type: Journal    
DOI: 10.1007/s00397-005-0012-z     Document Type: Article

References (26)

1. Boutahar K, Carrot C, Guillet J (1998) Crystallization of polyolefins from rheological measurements-relation between the transformed fraction and the dynamic moduli. Macromolecules 31:1921-1929 10.1021/ma9710592
2. Broerman AW, Venerus DC, Schieber JD (1999) Evidence for the stress-thermal rule in an elastomer subjected to simple elongation. J Chem Phys 111:6965-6969 10.1063/1.479989
3. Chitrangad B, Picot JJC (1981) Similarity in orientation effects on thermal conductivity and flow birefringence for polymer-polydimethylsiloxane. Polym Eng Sci 21:782-786 10.1002/ pen.760211207
4. Choy CL, Young K (1977) Thermal conductivity of semicrystalline polymers-a model. Polymer 18:769-776 10.1016/0032-3861(77)90179-3
5. Choy CL, Wong YW, Yang GW, Kanamoto T (1999) Elastic modulus and thermal conductivity of ultradrawn polyethylene. J Polym Sci Part B: Polym Phys 37:3359-3367 10.1002/ (SICI)1099-0488(19991201)37:23<3359::AID-POLB11>3.0.CO;2-S
6. Gross U, Song YW, Hahne E (1992) Measurements of liquid thermal conductivity and diffusivity by the transient hot-strip method. Fluid Phase Equilibria 76:273-262
7. Kilian HG, Pietralla M (1978) Anisotropy of thermal diffusivity of uniaxial stretched polyethylenes. Polymer 19:664-672 10.1016/ 0032-3861(78)90120-9
8. Kostic M, Tong H (1999) Investigation of thermal conductivity of a polymer solution as function of shearing rate. In Witte LC (ed), ASME Proceedings, HTD-vol. 364-4, vol. 4, ASME, New York, pp 15-21
9. Laun HM (1986) Prediction of elastic strain of polymer melts in shear and elongation. J Rheol 30:459-501 10.1122/1.549855
10. Marcus SM, Blaine RL (1994) Thermal conductivity of polymers, glasses and ceramics by modulated DSC. Thermochim Acta 243:231-239 10.1016/ 0040-6031(94)85058-5
11. Nogales A, Hsiao BS, Somani RH, Srinivas S, Tsou AH, Balta-Calleja FJ, Ezquerra TA (2001) Shear-induced crystallization of isotactic polypropylene with different molecular weight distributions: In situ small- and wide-angle X-ray scattering studies. Polymer 42:5247-5256 10.1016/S0032-3861(00)00919-8
12. Picot JJC, Goobie GI, Mawhinney GS (1982) Shear-induced anisotropy in thermal conductivity of a polyethylene melt. Polym Eng Sci 22:154-157 10.1002/pen.760220304
13. Price DM, Jarratt M (2002) Thermal conductivity of PTFE and PTFE composites. Thermochim Acta 392-393:231-236 10.1016/S0040-6031(02)00105-3
14. Schieber JD, Venerus DC, Bush K, Balasubramanian V, Smoukov S (2004) Measurement of anisotropic energy transport in flowing polymers using a holographic technique. Proc Natl Acad Sci 101:13142-13146 10.1073/ pnas.0405262101
15. Somani RH, Hsiao BS, Nogales A, Srinivas S, Tsou AH, Sics I, Balta-Calleja FJ, Ezquerra TA (2000) Structure development during shear flow-induced crystallization of i-PP: In-situ small-angle X-ray scattering study. Macromolecules 33:9385-9394 10.1021/ma001124z
16. Sombatsompop N, Wood AK (1997) Measurement of thermal conductivity of polymers using an improved Lee's disc apparatus. Polymer Testing 16:203-223 10.1016/S0142-9418(96)00043-8
17. RI Tanner 2000 Engineering rheology 2nd edn Oxford University Press New York
18. Tavman IH (1997) An apparatus for measuring the viscosity of polymers under shearing strain. Measurement Sci Technol 8:287-292 10.1088/ 0957-0233/8/3/011
19. Van den Brule BHAA (1989) A network theory for the thermal conductivity of an amorphous polymeric material. Rheol Acta 28:257-266 10.1007/ BF01329335
20. Varga J (1995) Crystallization, melting and supermolecular structure of isotatic polypropylene. In: Karger-Kocsis J (ed) Polypropylene structure, blends and composites, vol 1. Structure and morphology, Chapman & Hall, pp. 56-115
21. Venerus DC, Schieber JD, Iddir H, Guzman JD, Broerman AW (1999a) Measurement of thermal diffusivity in polymer melts using forced Rayleigh light scattering. J Polym Sci Part B: Polym Phys 37:1069-1078 10.1002/(SICI)1099-0488(19990601)37:11<1069::AID-POLB3>3.0.CO;2-U
22. Venerus DC, Schieber JD, Iddir H, Guzmán JD, Broerman AW (1999b) Relaxation of anisotropic thermal diffusivity in a polymer melt following step shear strain. Phys Rev Lett 82:366-369 10.1103/ PhysRevLett.82.366
23. Venerus DC, Schieber JD, Balasubramanian V, Bush K, Smoukov S (2004a) Anisotropic thermal conduction in a polymer liquid subjected to shear flow. Phys Rev Lett 93: Week ending, pp. 098301-4
24. Venerus DC, Schieber JD, Balasubramanian V, Bush K, Smoukov S (2004b) Anisotropic thermal conduction in shear flow of a polymer melt. Proc. XIVth Int. Congr. on Rheology, Seoul, Korea, RE091-3.
25. Wallace DJ, Mooreland C, Picot JJC (1985) Shear dependence of thermal conductivity in polyethylene melts. Polym Eng Sci 25:70-74 10.1002/ pen.760250203
26. Washo DB, Hansen D (1969) Heat conduction in linear amorphous high polymers: Orientation anisotropy. J Appl Phys 40:2423-2427 10.1063/ 1.1658009