以活性单体甲基丙烯酸缩水甘油酯（GMA）对聚苯醚（PPO）进行熔融接枝，制备PPO-g—GMA接枝共聚物，以此作为相容剂与PPO和尼龙6（PA6）熔融共混，重点研究了PPO-g—GMA含量对共混物形态结构和性能的影响。在PPO-PA6（质量比60／40）共混物中加入相容剂PPO-g-GMA后，PPO-g-GMA中的环氧基团与PA6分子链上的端氨基或端菝基发生反应，增强了界面粘附力，相形态由海-岛结构转变为双连续结构，共混物的拉伸强度和冲击强度提高，吸水性降低。在PPO-g—GMA添加量为5phr时，拉伸强度由42．0MPa增加到59．5MPa，冲击强度由2kJ／m2增加到3．7kJ／ml，同时吸水性由1．75％下降到1．46％。
Poly (phenylene oxide) grafted glycidyl methacrylate copolymer (PPO-g-GMA) was prepared by grafting poly(phenylene oxide) (PPO) with glycidyl methacrylate (GMA) monomer and used as the compatibilizer of PPO/polyamide 6 (PA6) (mass ration 60/40) blend. Influence of PPO-g-GMA content on the morphology and properties of the blend was studied. The glycidyl group in PPO-g-GMA could react with the terminal amine or carbonyl group of PA6, thus the interfacial interaction of PPO and PA6 increasing. When PPO-g-GMA was added into PPO/PA6 (mass ration 60/40) blend, the phase structure changed from sea-island to co-continuous, and the complex viscosity and storage modulus increased significantly. The difference between the glass transition temperature of PPO and PA6 decreased with the PPO-g-GMA content increasing, which supplied an additional evidence to the compatibilization effect of PPO-g-GMA. When the content of PPO-g-GMA was 5phr, the tensile strength of blend increased to 59.5 MPa and the impact strength increased to 3.7 kJ/m2. Also the water absorption decreased from 1.75 % to 1.46 %.
参考文献
| [1] | Younggon Son;Shichoon Lee .One Step Method for Fabrication of PPO/PA-66/Elastomer Blends[J].Polymer bulletin,2006(2/3):267-273. |
| [2] | Chiang CR.;Chang FC. .POLYMER BLENDS OF POLYAMIDE-6 (PA6) AND POLY(PHENYLENE OXIDE) (PPO) COMPATIBILIZED BY STYRENE-MALEIC ANHYDRIDE (SMA) COPOLYMER[J].Polymer: The International Journal for the Science and Technology of Polymers,1997(19):4807-4817. |
| [3] | Y. Pietrasanta;Jean-Jaques Robin;N. Torres;B. Boutevin .Reactive compatibilization of HDPE/PET blends by glycidyl methacrylate functionalized polyolefins[J].Macromolecular chemistry and physics,1999(1):142-149. |
| [4] | Chiang CR.;Chang FC. .POLYMER BLENDS OF POLYAMIDE-6 AND POLY(PHENYLENE OXIDE) COMPATIBILIZED BY STYRENE-CO-GLYCIDYL METHACRYLATE[J].Journal of Applied Polymer Science,1996(13):2411-2421. |
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