Mechanical properties of natural fiber/polypropylene, foamed and reinforced with spherical carbon nanoparticles for application in automotive industry
Message:
Article Type:
Research/Original Article (دارای رتبه معتبر)
Abstract:
The aim of this study was to investigate the mechanical properties of foamed, reinforced and light weighted natural fiber/polypropylene nanocomposites using spherical carbon nanoparticles for use in the automotive industry. For this purpose, bagasse flour at constant level of 40%, azodicarbonamide foaming agent at 0, 2 and 4% levels, spherical carbon nanoparticles at four levels, namely 0, 0.25, 0.5 and 1% were selected as study variables. Polypropylene as polymeric matrix, and polypropylated maleic anhydride coupling agent (4% constant value) were considered for different nanocomposite compositions. The mixing of materials was performed using an internal mixing machine and then by hot and cold two-step press. Test specimens for density, impact strength, flexural and tensile tests were fabricated using standard molds. The ultrastructure of the nanocomposites was also studied using SEM microscopic images. Results showed that by increasing the amount of foaming agent, the density of the product decreased significantly, but had a negative effect on mechanical strengths except impact strength. Impact strength of lightweight nanocomposites had higher values than that of control samples. It was also found that increasing the amount of carbon nanoparticles was able to compensate for the decrease in other resistances in lightweight nanocomposites and increase their quantities. Ultrastructural examination of the samples also showed that in the presence of carbon nanoparticles, bagasse particles were better dispersed inside the polymer and a better bonding between them and the polymer occurred. Also, the presence of a foaming agent increases the pores and decreases the density.
Language:
Persian
Published:
Journal of Forest and Wood Products, Volume:73 Issue: 2, 2020
Pages:
177 to 187
magiran.com/p2162920  
دانلود و مطالعه متن این مقاله با یکی از روشهای زیر امکان پذیر است:
اشتراک شخصی
با عضویت و پرداخت آنلاین حق اشتراک یک‌ساله به مبلغ 990,000ريال می‌توانید 70 عنوان مطلب دانلود کنید!
اشتراک سازمانی
به کتابخانه دانشگاه یا محل کار خود پیشنهاد کنید تا اشتراک سازمانی این پایگاه را برای دسترسی نامحدود همه کاربران به متن مطالب تهیه نمایند!
توجه!
  • حق عضویت دریافتی صرف حمایت از نشریات عضو و نگهداری، تکمیل و توسعه مگیران می‌شود.
  • پرداخت حق اشتراک و دانلود مقالات اجازه بازنشر آن در سایر رسانه‌های چاپی و دیجیتال را به کاربر نمی‌دهد.
دسترسی سراسری کاربران دانشگاه پیام نور!
اعضای هیئت علمی و دانشجویان دانشگاه پیام نور در سراسر کشور، در صورت ثبت نام با ایمیل دانشگاهی، تا پایان فروردین ماه 1403 به مقالات سایت دسترسی خواهند داشت!
In order to view content subscription is required

Personal subscription
Subscribe magiran.com for 50 € euros via PayPal and download 70 articles during a year.
Organization subscription
Please contact us to subscribe your university or library for unlimited access!