Morphological and Biological Properties of Decorated Papers Impregnated with Melamine Formaldehyde Resins Containing Chitosan Nanoparticles
Message:
Article Type:
Research/Original Article (دارای رتبه معتبر)
Abstract:
Background and objectives

The purpose of this study is production of decorative antibacterial melamine papers veneers using chitosan nanoparticles. Today, for many uses, there is a need for composite products that are well paid. Melamine Laminate is the most widely used veneer for wood-based composite product in the world, according to the FAO report. Melamine veneers are used as a decorative and protective layer on the surface of wood-based composite products such as particleboard and fiberboard, which then can be used in laminate flooring, furniture such as the computer tables and kitchen worktops. Researches on antimicrobial coatings to protect surfaces from residues of microorganisms on surfaces in the environment that could prevent the spread of diseases in human societies have attracted a remarkable interest. Therefore, the development of Nano-structure coatings with antimicrobial properties has been interested considerably.

Materials and methods

In this study, immersion of decor-base paper in melamine formaldehyde resin treated with chitosan nanoparticles was used for the production of antibacterial melamine decorative veneers. Then, the moisture content of produced melamine coatings was reduced to a range of 5 to 7% by a laboratory drying agent. The specimens were evaluated using XRD, FESEM and FTIR techniques. For biologic tests of papers, bacterial inhibition zone measurement method and Staphylococcus aureus and Escherichia coli were used as two indicator bacteria in biological tests.

Results

The results showed that the chitosan nanoparticle concentrations were effective on the antimicrobial activity of melamine coatings and its effect on the gram-positive bacteria was stronger and increased the diameter of the inhibition zone. Melamine coatings containing 1.5% of Nano chitosan had the highest microbial effect.

Conclusion

Melamine coatings treated with chitosan nanoparticles had high antimicrobial properties. Considering all the results of the present research and economic costs of using chitosan nanoparticles, consumption less than 1% by weight was determined as optimum consumption. It should be noted that with a better distribution of resin nanoparticles at the matrix surface, also in small amounts, significant antibacterial properties can be added to the melamine coatings produced.

Language:
Persian
Published:
Wood & Forest Science and Technology, Volume:26 Issue: 1, 2019
Pages:
105 to 115
magiran.com/p2053032  
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!