研究了热致液晶聚酰胺(TLCPa)/聚酰胺66(PA66)原位复合材料的相容性及其成纤机理.转矩流变仪研究证实:TLCPa/PA66的粘度比小于1,利于TLCPa在基体中成纤.差示扫描量热分析(DSC)结果显示:PA66的熔点和结晶温度均随TLCPa含量的增加而下降,同时结晶度和结晶速率随TLCPa含量增加也明显降低,体系具有明显的相容特征.傅立叶红外光谱(FTIR)研究结果显示:液晶聚酰胺与尼龙66分子间存在氢键作用,并且参与形成氢键作用官能团的数量随液晶含量的增加而增加.扫描电子显微镜(SEM)结果显示:在单纯剪切流场条件下,TLCPa分散相在PA66基体中能够变形为微纤结构.
参考文献
| [1] | KISS G .In situ composites:blends of isotropic polymers and thermotropic liquid crystalline polymers[J].Polymer Engineering and Science,1987,27:410-423. |
| [2] | LA MANTIA F P;SAIU M;VALENZA A .Relationships between mechanical properties and structure for blends of nylon-6with a liquid crystal polymer[J].European Polymer Journal,1990,26(03):323-327. |
| [3] | LA MANTIA FP;VALENZA A;PACI M et al.Rheologymorphology relationships in Nylon 6/liquid-crystalline polymer blends[J].Polymer Engineering and Science,1990,30:7-11. |
| [4] | BERRY D;KENIG S;SIEGMANN A .Structure development during flow of polyblends containing liquid crystalline polymers[J].Polymer Engineering and Science,1991,31:451-458. |
| [5] | SEO Y;HONG SM;KIM KU .Structure development during flow of ternary blends of a polamide(Nylon 46),a thermotropic liquid crystalline polymer (poly(ester amide[J].Macromolecules,1997,30:2978-2988. |
| [6] | BERRY D;KENIG S;SIEGMANN A .Structure and properties of molded polyblends containing liquid crystalline polymers[J].Polymer Engineering and Science,1991,31:459-466. |
| [7] | Yongsok Seo;Kwang Ung Kim .A Study on the Ternary Blends of Nylon 6, a Thermotropic Liquid Crystalline Polymer, and a Thermoplastic Elastomer[J].Polymer engineering and science,1998(4):596-604. |
| [8] | 刘杰,何嘉松.引入离子基团改善聚苯乙烯和热致液晶聚合物的相容性Ⅰ.热性能和形态[J].高分子学报,1998(02):0. |
| [9] | 解孝林,LI R.K.Y,TJONG S.C.热致液晶共聚酯/PA6/RSMA原位复合材料1.RSMA对热致液晶共聚酯/PA6共混体系的增容作用[J].材料研究学报,2001(03):348-352. |
| [10] | Dutta D.;He JS.;Weiss RA. .COMPATIBILIZATION OF BLENDS CONTAINING THERMOTROPIC LIQUID CRYSTALLINE POLYMERS WITH SULFONATE IONOMERS[J].Polymer: The International Journal for the Science and Technology of Polymers,1996(3):429-435. |
| [11] | ZHANG Wen-xion;FUKUJI HIGASHI .Thermotropic copolyamides from polyethyleneglycol bis(4-carboxyphenyl)ethers with different oxyethylene units[J].Journal of Polymer Science Part A:Polymer Chemistry,1993,31:2935-2940. |
| [12] | 何嘉松;卜文胜;张洪志 等.粘度比对刚性链高分子与柔性链高分子共混物微结构的影响[J].高分子学报,1994,12(06):741-744. |
| [13] | NISHI T;WANG TT.Melting point depression and kinetic effects of cooling on crystallization in poly(vinylidene fluoride)-poly (methyl methacrylate) mixtures[J].Macromolecules,1975(08):909-915. |
| [14] | PAINTER PC;SHENOY SL;BHAGWAGAR De et al.Effect of hydrogen bonding on the melting point depression in polymer blends where one component crystallizes[J].Macromolecules,1991,24:5623-5629. |
| [15] | LI J;HE Y;ISHIDA K et al.Hydrogen-bonding interactions between 4,40-thiodiphenol and some poly(hydroxyalkanoic acid)s revealed by DSC and FT-IR spectroscopic analysis[J].Polymer Journal,2001,33:773-782. |
| [16] | Yong He;Naoki Asakawa;Jianchun Li;Yoshio Inoue .Effects of Low Molecular Weight Compounds with Hydroxyl Groups on Properties of Poly(L-lactic acid)[J].Journal of Applied Polymer Science,2001(3):640-649. |
| [17] | Van Krevelen D W;Hoftyzer P J.Properties of polymer[M].Amsterdam:Elsevier Scientific Publishing Co,1990:221-228. |
| [18] | TJONG SC;YU LIRK;XIAO LIN X .Properties of in situ composites based on semiflexible thermotropic liquid crystalline copolyesteramide and polyamide 66 blends[J].Polymer Journal,2000,32:907-914. |
| [19] | GOPAKUMAR TG;PONRATHNAM S;LELE A et al.In situ compatibilisation of poly(phenylene sulphide)/wholly aromatic thermotropic liquid crystalline polymer blends by reactive extrusion[J].Polymer Journal,1999,40:357-364. |
| [20] | Yong He;Bo Zhu;Yoshio Inoue .Hydrogen bonds in polymer blends[J].Progress in Polymer Science,2004(10):1021-1051. |
| [21] | ERICJM;STEPHENEH;PAULCP et al.On the role of intermolecular hydrogen bonding in miscible polymer blends[J].Macromolecules,1984,17:1671-1678. |
| [22] | CHRISTOPHE LM;DORAB E B;PAUL CP et al.Hydrogen bonding in ternary polymer blend systems:determination of association parameters[J].Macromolecules,1992,25:7101-7106. |
| [23] | VERHOOGT H;LANGELAAN HC;VAN DAM J et al.Blends of a thermotropic LCP and a thermoplastic elastomer[J].Polymer Engineering and Science,1993,33:754-761. |
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