Poly(lactic acid) (PLA) was hybridised with epoxide-functionalised silane (GTMS) through reactive extrusion. The GTMS was grafted successfully to PLA via a ring-opening reaction with the nucleophilic end groups of PLA. For hybridisation, PLA was extruded with various amounts of GTMS between 0 and 2.0 phr at 200 °C. The PLA hybrids were characterised by Fourier transform infrared spectroscopy and scanning electron microscopy. Their properties were examined by tensile testing, differential scanning calorimetry, thermogravimetric analysis, dynamic mechanical analysis, and rheological characterisation. The glass transition temperature of the hybrids decreased to 52.7 °C compared to that of PLA (60.1 °C). The toughness was enhanced significantly by approximately 380% with only a 0.5 phr loading of GTMS. The hydrolytic degradation was also delayed by the hybridised GTMS in the PLA matrix. In conclusion, hybridisation by GTMS influenced the thermal, mechanical and degradable properties of the PLA hybrids substantially.

通过反应挤出将聚乳酸（PLA）与环氧官能化的硅烷（GTMS）杂交。通过与PLA亲核端基的开环反应，将GTMS成功嫁接到PLA上。为了杂交，在200°C下用0至2.0 phr之间的各种GTMS挤出PLA。通过傅里叶变换红外光谱和扫描电子显微镜对PLA杂种进行了表征。通过拉伸试验，差示扫描量热法，热重分析，动态力学分析和流变学表征检查了它们的性能。与PLA（60.1°C）相比，杂化物的玻璃化转变温度降低至52.7°C。仅添加0.5 phr的GTMS，韧性就显着提高了约380％。在PLA基质中杂交的GTMS也延迟了水解降解。总之，GTMS杂交显着影响了PLA杂种的热，机械和可降解特性。