Characterization of polylactic acid-based nanocomposite foams with supercritical CO2

نویسندگان

چکیده

In this research, we physically foamed semicrystalline polylactic acid filled with montmorillonite, carbon nanotubes, and halloysite nanoparticles. the case of polymer foams, their density compressive strength are important parameters. Although specific calculated as ratio two is a good indicator use polymeric few researchers for classification. We have shown that presence nanoparticles has positive effect on parameter, especially 3 wt% halloysite, when value increased from 12.07 ± 7.5 [MPa/(g/cm3)] to 20.89 1.75 [MPa/(g/cm3)], i.e., by more than 70%. general, reduced standard deviation ratio. Regardless used, average cell diameter decreased compared reference material. The results were explained nucleating ability halloysite.

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Processing and Characterization of Cellulose Nanocrystals/Polylactic Acid Nanocomposite Films

The focus of this study is to examine the effect of cellulose nanocrystals (CNC) on the properties of polylactic acid (PLA) films. The films are fabricated via melt compounding and melt fiber spinning followed by compression molding. Film fracture morphology, thermal properties, crystallization behavior, thermo-mechanical behavior, and mechanical behavior were determined as a function of CNC co...

متن کامل

characterization of cellulose reinforced polylactic acid solution cast nanocomposite

polylactic acid based biodegradable nanocomposites reinforced with acetylated nanocellulose were fabricated with solution casting procedure. the nanocomposites were prepared by adding 1, 3 and 5% nanofiber loadings. the microstructure, physical, mechanical and thermal properties of the prepared nanocomposites were investigated. scanning electronic microscope (sem) analysis of the composites con...

متن کامل

Synthesis, characterization and biocompatibility evaluation of hydroxyapatite - gelatin polyLactic acid ternary nanocomposite

Objective(s): The current study reports the production and biocompatibility evaluation of a ternary nanocomposite consisting of HA, PLA, and gelatin for biomedical application.Materials and Methods: Hydroxyapatite nanopowder (HA: Ca10(PO4)6(OH)2) was produced by burning the bovine cortical bone within the temperature range of 350-450 oC followed by heating in an oven at 800. Synthesis of the te...

متن کامل

Novel polycarbonate-graphene nanocomposite foams prepared by CO2 dissolution

Polycarbonate foams reinforced with 0,5 wt% of graphene were obtained by firstly melt-mixing the polycarbonate and graphene in an internal mixer, compression-moulding the melt-compounded grinded material and lastly dissolving CO2 inside a high pressure vessel. The CO2 desorption behaviour in the unfilled polycarbonate and nanocomposite was studied in terms of the CO2 saturation concentration an...

متن کامل

Preparation of PMMA/MWNTs Nanocomposite Microcellular Foams by In-situ Generation of Supercritical Carbon Dioxide

Nanocomposites containing poly(methyl methacrylate) (PMMA) and surface functionalized Multi-Walled Carbon Nanotubes (MWNTs) were synthesized. The dispersion of MWNTs in PMMA was characterized using Transmission Electron Microscopy (TEM).The synthesized nanocomposites were successfully foamed using a simple method based on the in-situ generation of supercritical carbon dioxide (CO2</sub...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Measurement

سال: 2021

ISSN: ['1873-412X', '0263-2241']

DOI: https://doi.org/10.1016/j.measurement.2021.109385