Abstract
Blends of polypropylene (PP)/ethylene-octene copolymer (EOC) were studied. The influences of blend composition and mixing time on phase morphology development of the blends were investigated by scanning electron microscopy (SEM) and on-line small-angle light scattering (SALS) in detail. The toughness of the PP/EOC blends was investigated over wide ranges of EOC content and determined from the impact fracture energy of the side-edge notched samples. The concept of interparticle distance (ID) and the surface-to-surface interparticle distance (τ) were introduced into this study to probe the size effect on the brittle–ductile transition (BDT) of PP/EOC blends. The results showed that ID based on the SEM photograph and the surface-to-surface interparticle distance (τ) getting from SALS have similar effects on charactering the toughness of the PP/EOC blends. But the surface-to-surface interparticle distance (τ) is more prone to character the BDT of PP/EOC blends than the ID value. On-line SALS can be applied to the research of BDT of PP/EOC blends.
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References
Huang L, Pei QW, Yuan Q (2004) Polymer 45:6427
Jiang W, Yu DH, An LJ, Jian BZH (2004) J Polym Sci, Part B: Polym Phy 42:1433
van der Wal A, Nijhof R, Gaymans RJ (1999) Polymer 40:6031
Jiang W, Liu CH, Wang ZG, An LJ (1998) Polymer 39:3285
Zhang Z, Chiu DS, Siu GG (1997) J Reinf Plast Comp 16:S603
Phase structure and adhesion in polymer blends: a criterion for rubber toughening (1985) Polymer 26:1855
Li Q, Zheng W, Qi Z, Zhu X, Choy C (1992) Sci China B 22:236
Bartczak Z, Argon AS, Cohen RE, Weinberg M (1999) Polymer 40:2331
Wilson Cheung’J Y, Stein Richard S (1994) Macromolecules 27:2520
Mewis J, Yang H, Walker LM (1998) Chem Eng Sci 53:2231
Akpalu YA, Youyu L (2002) J Polym Sci, Part B: Polym Phys 40:2714
Sacks MS, Bowes LE, Hiester ED, Brahmatewari PM (1998) 5th Southern Biomedical Engineering Conference
Zhou JM, Sheng J (1997) Polymer 38:3727
Sun H, Sheng J (2006) Polym Plast Technol Eng 45:1175
Da Silva ALN, Rocha MCG, Coutinho FMB, Bretas R, Scuracchio C (1997) J Appl Polym Sci 66:2005
Da Silva ALN, Rocha MCG, Coutinho FMB, Bretas R, Scuracchio C (2002) J Appl Polym Sci 75:692
Da Silva ALN, Rocha MCG, Coutinho FMB, Bretas RES, Farah M (2002) Polym Test 21:647
Paul S, Kale DD (2000) J Appl Polym Sci 76:1480
Paul S, Kale DD (2002) J Appl Polym Sci 84:665
Yang JH, Zhang Y, Zhang YX (2003) Polymer 44:5047
McNally T, McShane P, Nally GM, Murphy WR, Cook M, Miller A (2002) Polymer 43:3785
Kontopoulou M, Wang W, Gopakumar TG, Cheung C (2003) Polymer 44:7495
Debye P, Bueche AN (1949) J Appl Phys 20:518
Crugnola AM, Deanin RD (1979) Toughness and Brittleness of Plastic [M], p 286
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The authors gratefully acknowledge the financial support of National Natural Science Foundation of China (No. 02490220).
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Yan, X., Xu, X. & Zhu, L. Analysis of brittle–ductile transition of polypropylene/ethylene-octene copolymer blends by scanning electron microscopy and small angle laser light scattering. J Mater Sci 42, 8645–8651 (2007). https://doi.org/10.1007/s10853-007-1882-5
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DOI: https://doi.org/10.1007/s10853-007-1882-5