{"title":"Enhancing the mechanical characteristics of polylactic acid/thermoplastic starch/TiO2 nanocomposites by melt mixing process","authors":"Shams Tabrez, Ansuman Sahoo, Shyama Prasad Mohanty","doi":"10.1016/j.matlet.2025.138509","DOIUrl":null,"url":null,"abstract":"<div><div>Research on biodegradable polymer based nanocomposites has gained momentum and several such systems are being explored. In this context, the present work demonstrates the effect of mixing sequence of starch and TiO<sub>2</sub> nanoparticles in polylactic acid (PLA)/starch/TiO<sub>2</sub> nanocomposites prepared by melt mixing method using two-roll mill. Sheets have been prepared by compression moulding and evaluated for their mechanical properties by tensile testing, hardness and impact strength measurements. Enhancement in tensile strength and modulus by 13 % and 16 %, respectively has been observed by changing the mixing sequence of starch and TiO<sub>2</sub>. Fractured surfaces of composite specimens have been analyzed by microscopy. Effects have also been observed in gloss and thermal stability of the composites. The outcomes will be useful for the fabrication of various polymeric nanocomposites by melt mixing approach.</div></div>","PeriodicalId":384,"journal":{"name":"Materials Letters","volume":"391 ","pages":"Article 138509"},"PeriodicalIF":2.7000,"publicationDate":"2025-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Materials Letters","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0167577X25005385","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
Research on biodegradable polymer based nanocomposites has gained momentum and several such systems are being explored. In this context, the present work demonstrates the effect of mixing sequence of starch and TiO2 nanoparticles in polylactic acid (PLA)/starch/TiO2 nanocomposites prepared by melt mixing method using two-roll mill. Sheets have been prepared by compression moulding and evaluated for their mechanical properties by tensile testing, hardness and impact strength measurements. Enhancement in tensile strength and modulus by 13 % and 16 %, respectively has been observed by changing the mixing sequence of starch and TiO2. Fractured surfaces of composite specimens have been analyzed by microscopy. Effects have also been observed in gloss and thermal stability of the composites. The outcomes will be useful for the fabrication of various polymeric nanocomposites by melt mixing approach.
期刊介绍：
Materials Letters has an open access mirror journal Materials Letters: X, sharing the same aims and scope, editorial team, submission system and rigorous peer review.
Materials Letters is dedicated to publishing novel, cutting edge reports of broad interest to the materials community. The journal provides a forum for materials scientists and engineers, physicists, and chemists to rapidly communicate on the most important topics in the field of materials.
Contributions include, but are not limited to, a variety of topics such as:
• Materials - Metals and alloys, amorphous solids, ceramics, composites, polymers, semiconductors
• Applications - Structural, opto-electronic, magnetic, medical, MEMS, sensors, smart
• Characterization - Analytical, microscopy, scanning probes, nanoscopic, optical, electrical, magnetic, acoustic, spectroscopic, diffraction
• Novel Materials - Micro and nanostructures (nanowires, nanotubes, nanoparticles), nanocomposites, thin films, superlattices, quantum dots.
• Processing - Crystal growth, thin film processing, sol-gel processing, mechanical processing, assembly, nanocrystalline processing.
• Properties - Mechanical, magnetic, optical, electrical, ferroelectric, thermal, interfacial, transport, thermodynamic
• Synthesis - Quenching, solid state, solidification, solution synthesis, vapor deposition, high pressure, explosive
京公网安备 11010802042870号
京ICP备2023020795号-1
分享
求助内容：
应助结果提醒方式：
扫码关注我们
