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| Morphology of low profile unsaturated polyester resins cured at low--medium temperature |
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| 武汉理工大学 |
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Cite this article:
. Morphology of low profile unsaturated polyester resins cured at low--medium temperature. Chin J Mater Res, 2004, 18(3): 273-279.
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Abstract The morphology of low--profile unsaturated polyester resins cured at
low--medium temperature was investigated. The experimental
results show that the influence of temperature on morphology of cured
sample is small for poly(vinyl acetate) based LPAs but large for
polystyrene based LPA. Polar polymers tend to phase out from UPR and make
system form co--continuous structure, which make for shrinkage compensation.
Big difference of glass transition temperature $T_{\rm g}$ between UPR and
LPA and a $T_{\rm g}$ below the cure temperature are preferred,
which make microvoid formation of cured sample have more time and higher
efficiency. For the sample with poly(vinyl acetate) based LPAs, the
morphology exists two transitions with increasing the LPA concentration.
LPA with higher molecular weights needs lower concentration to obtain
co--continuous structure. However, for the sample with polystyrene based LPA,
the morphology has little change with increasing the LPA concentration.
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Received: 19 July 2004
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1 C.D.Rudd, A.C.Long, K.N.Kendall, C.G.E.Mangin, Liquid Moulding Technologies, Resin Transder Moulding, Structural Reaction Injection Moulding and Related Processing Techniques, (Ch.3,Woodhead Publishing House, Cambridge England, 1997)
2 V.M.Pattison, R.R.Hindersinn, W.T.Schwartz, J. Appl. Polym. Sci., 18, 2763(1974)
3 K.E.Aktins, In: Polymer Blends, D.R.Paul, S.Newman ed. (New York, Academic Press 1978)
4 K.E.Atkins, Low Profile Additives: Shrinkage Control Mechanism and Application, in: Sheet Molding Compound Materials: Science and Technology (Munich, Hanser, 1993) p.
5 E.G.Melby, J.M.Castro, Glass-reinforced Thermosetting Polyster Molding: Materials and Processing, Comprehensive Polymer Science, (Oergamon Press: Oxford, U.K., 1989)
6 M.Ruffier, G.Merle, J.P.Pascault, Polymer Engineering and Science, 33(8) , 466(1993)
7 M.R.Kinkelaar, L.J.Lee, J. Appl. Polym. Sci., 45, 37(1992)
8 M.Kinkelaar, B.Wang, L.J.Lee, Polymer, 35(14) , 3011(1994)
9 L.James Lee, J. Appl. Polym. Sci., 82(3) , 738(2001)
10 Liu ChuanJun, A.H.J. Nijhof, M.S. Kiasat, H. Blokland, R. Marissen, Polymer Engineering and Science, 39(1) , 18(1999)
11 Kan Wang, Jihui Wang, Yingdan Zhu, The Effect of Low Profile Additives on Unsaturated Polyester Resins during Curing in Low-Medium Temperature: Shrinkage Behavior Study, Key Engineering Materials, Volume 249, p.323~326, Proceedings of the 3rd China Cross-Strait Conference on Composite Material, Wuhan, China, May 7-12, 249, 323(2003)
12 Y.J.Huang, C.J.Chu, J.P.Dong, J. Appl. Polym. Sci., 78(3) , 543(2000)
13 Y.J.Huang, S.C.Dong, J.P.Dong, J. Appl. Polym. Sci., 78(3) , 558(2000)
14 W.Li, L.J.Lee, Polymer, 41(2) , 685(2000)
15 W.Li, L.J.Lee, Polymer, 41(2) , 697(2000)
16 Z.Zhang, Polymer, 41(10) , 3861(2000) |
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