This paper studies the non-isothermal crystallization kinetics of polyamide 66 (PA66) and thermal liquid crystal polymer (TLCP) in situ composites with contents of TLCP is 1 wt.% by differential scanning calorimetry (DSC) at various cooling rates. The results show that TLCP acts as nucleator for PA66 matrix accelerating the crystallization. It is speculated, from Avrami exponent and Liu method, that there is a strong hydrogen bonds between –NH-, -CO- groups of PA66 and -COOH and/or -OH groups of TLCP. Kissinger method is employed to obtain the activation energy of the crystallization process and the results indicated that the addition of TLCP may entice the crystallization of PA66 matrix.
ElzeinT., BroglyM., and Schultz. “Crystallinity measurements of polyamides adsorbed as thin films,”J. Polymer, 43 (2002) 4811–4822.
2.
LinZ.D., GuanZ.X., ZhangZ.S., and MaiK.C.“The effect of thermal history of polyamide 6 on the crystallization and melting behavior of β-nucleated polypropylene/polyamide 6 blends”, Thermochimica Acta, 543 (2012) 59–65.
3.
LeeS.S., and PhillipsP.L.“Melt crystallized polyamide 6.6 and its copolymers, Part I. Melting point -Lamellar thickness relations in the homopolymer”J. Eur. Polym., 43 (2007) 1933–1951.
4.
JeziornyA.“Parameters characterizing the kinetics of the non-isothermal crystallization of poly(ethylene terephthalate) determined by d.s.c. “Polymer, 19 (1978) 1142–1144.
5.
LiuT. X., MoZ. S., WangS. E., and ZhangH. F.“Nonisothermal melt and cold crystallization kinetics of poly(aryl ether ether ketone ketone),”Polym. Eng. Sci., 37 (1997) 568–575.
6.
KissingerH.E.“Variation of Peak Temperature With Heating Rate in Differential Thermal Analysis,”J. Research Natl. Bur. Standards, 57 (1956) 217–221.
7.
LiuY., and YangG.S.“Non-isothermal crystallization kinetics of polyamide-6/graphite oxide nanocomposites”, Thermochimica Acta, 500 (2010) 13–20.
8.
TjongS.C., LiR.K.Y., and XieX.L.“Compatibilizing effect of styrene-maleic anhydride copolymer on the properties of polyamide-6/liquid crystalline copolyester composites”, J. Appl. Poly. Sci., 77 (2000) 1964–1974.
9.
HeJ., and LiuJ.“Miscibility enhancement of modified polystyrene blends with a liquid crystalline polymer”Polymer”, 40 (1999) 959–969.
10.
PengZ., and ChenD.“Study on the nonisothermal crystallization behavior of poly(vinyl alcohol)/attapulgite nanocomposites by DSC analysis”, J. Polym. Sci. Part B: Polymer Physics, 44 (2006) 534–540.
