Mechanical properties and thermal stability of poly(L-lactide)/calcium carbonate composites

Kim HS; Park BH; Choi JH; Yoon JS

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Mechanical properties and thermal stability of poly(L-lactide)/calcium carbonate composites

机译：聚（L-丙交酯）/碳酸钙复合材料的力学性能和热稳定性

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Poly(L-lactide) (PLA) was melt-mixed with micrometer-sized and nanosized calcium carbonate (CaCO3) particles before and after modification with calcium stearate. Adhesion between the CaCO3 particles and the PLA matrix was assessed qualitatively by scanning electron microscopy observation of the fractured surface morphology of the composites. The effect of the incorporation of the CaCO3 particles on the thermal stability of the PLA-based composites was quantified by the temperatures corresponding to 5 and 50% of weight loss and the activation energy determined through thermogravimetric analyses of the composites. The tensile strength and modulus values of the composite were improved greatly without a significant loss in the elongation at break when the nanosized CaCO3 was incorporated up to 30 wt %. (c) 2008 Wiley Periodicals, Inc.

机译：在用硬脂酸钙改性之前和之后，将聚（L-丙交酯）（PLA）与微米级和纳米级碳酸钙（CaCO3）颗粒熔融混合。通过扫描电子显微镜观察复合材料的断裂表面形态，定性地评估了CaCO3颗粒与PLA基质之间的附着力。通过对应于重量损失的5％和50％的温度以及通过复合材料的热重分析确定的活化能来量化CaCO3颗粒的掺入对PLA基复合材料的热稳定性的影响。当掺入至多30wt％的纳米级CaCO 3时，复合材料的拉伸强度和模量值得到了极大的改善，而断裂伸长率没有明显损失。（c）2008年Wiley Periodicals，Inc.

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《Journal of Applied Polymer Science》 |2008年第5期|共6页
作者
Kim HS; Park BH; Choi JH; Yoon JS;
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正文语种 eng
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composites; thermogravimetric analysis (TGA); thermal properties; polyesters; POLYETHYLENE; PARTICLES; DELIVERY;

机译：复合材料;热重分析（TGA）;热性能;聚酯;聚乙烯;颗粒;传递;

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1. Mechanical properties and thermal stability of poly(L-lactide)/calcium carbonate composites [J] . Kim HS, Park BH, Choi JH, Journal of Applied Polymer Science . 2008,第5期

机译：聚（L-丙交酯）/碳酸钙复合材料的力学性能和热稳定性
2. Effect of uncoated calcium carbonate and stearic acid coated calcium carbonate on mechanical, thermal and structural properties of poly(butylene terephthalate) (PBT)/calcium carbonate composites [J] . D R Peshwe, G S Deshmukh, J D Ekhe, Bulletin of materials science . 2010,第3期

机译：未涂覆的碳酸钙和硬脂酸涂覆的碳酸钙对聚对苯二甲酸丁二醇酯（PBT）/碳酸钙复合材料的机械，热和结构性能的影响
3. Effect of uncoated calcium carbonate and stearic acid coated calcium carbonate on mechanical, thermal and structural properties of poly(butylene terephthalate) (PBT)/calcium carbonate composites [J] . G. S. Deshmukh, S. U. Pathak, D. R. Peshwe, Bulletin of Materials Science . 2010,第3期

机译：未涂覆的碳酸钙和硬脂酸涂覆的碳酸钙对聚对苯二甲酸丁二酯（PBT）/碳酸钙复合材料的机械，热和结构性能的影响
4. Mechanical characterization of a porous pH-stabilized composite material consisting of poly(Z),L-lactide), calcium carbonate, and gentamicin [C] . S. Backhaus, T. Annen, M. Epple 23rd European conference on biomaterials 2010 . 2010

机译：由聚（Z），L-丙交酯，碳酸钙和庆大霉素组成的多孔pH稳定复合材料的机械特性
5. A study of surface modification effect of hemp fibers on the bulk properties of hemp-poly (lactic acid) composites: Thermal stability, mechanical, thermo-mechanical and biodegradability. [D] . Oza, Shubhashini. 2013

机译：研究大麻纤维对大麻-聚（乳酸）复合材料的整体性能的表面改性作用：热稳定性，机械，热机械和生物降解性。
6. Improving the Thermal and Mechanical Properties of Poly(l-lactide) by Forming Nanocomposites with an in Situ Ring-Opening Intermediate of Poly(l-lactide) and Polyhedral Oligomeric Silsesquioxane [O] . Xiu-Xiu Lei, Hao Lu, Lei Lu, 2019

机译：通过与聚（l-丙交酯）和多面体低聚倍半硅氧烷的原位开环中间体形成纳米复合材料提高聚（l-丙交酯）的热和机械性能
7. Effect of uncoated calcium carbonate and stearic acid coated calcium carbonate on mechanical, thermal and structural properties of poly(butylene terephthalate) (PBT)/calcium carbonate composites [O] . G. S. Deshmukh, S. U. Pathak, D. R. Peshwe, 2010

机译：未涂覆碳酸钙和硬脂酸涂布碳酸钙对聚（丁二醇酯）（PBT）/碳酸钙复合材料的机械，热和结构性能的影响

Mechanical properties and thermal stability of poly(L-lactide)/calcium carbonate composites

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