甲基丙烯酸环氧丙酯接枝乙烯-辛烯共聚物(POE-g-GMA)用于聚时苯二甲酸乙二醇酯(PET)/聚对苯二甲酸丁二醇酯(PBT)共混物的增韧改性,同时考察了PET、PBT组成变化对共混体系性能的影响.结果表明,加入15%～20%(质量分数,下同)的POE-g-GMA共混体系发生脆韧转变,冲击强度最高可达890 J/m,实现超韧;基体的剪切屈服和橡胶粒子的空洞化是增韧PET/PBT共混物主要形变机理.
Glycidyl methacrylate grafted poly(ethylene octane) copolymer (POE-g-GMA) was used as modifiers to improve the toughness of poly(ethylene terephthalate) (PET)/Poly (butylene terephthalate) (PBT) blends. The influence of PET and PBT ratio change on the properties of the blends was investigated. The results show that brittle-ductile transition takes place with 15%～20% POE-g-GMA addition. Impact strength value of 890 J/m is achieved which displays the super-toughness. Shear yielding of matrix and cavitation of rubber particles are the major toughening mechanisms of the rubber toughened PET/PBT blends.
参考文献
| [1] | Avramova N. .AMORPHOUS POLY(ETHYLENE TEREPHTHALATE) POLY(BUTYLENE TEREPHTHALATE) BLENDS - MISCIBILITY AND PROPERTIES[J].Polymer,1995(4):801-808. |
| [2] | Wendy Loyens;Gabriel Groeninckx .Rubber toughened semicrystalline PET: influence of the matrix properties and test temperature[J].Polymer: The International Journal for the Science and Technology of Polymers,2003(1):123-136. |
| [3] | Park JG.;Suh KD.;Kim DH. .Blends of polyethyleneterephthalate with EPDM through reactive mixing[J].Journal of Applied Polymer Science,2000(12):2227-2233. |
| [4] | Yu ZZ;Yang MS;Dai SC;Mai YW .Toughening of recycled poly(ethylene terephthalate) with a maleic anhydride grafted SEBS triblock copolymer[J].Journal of Applied Polymer Science,2004(3):1462-1472. |
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