بررسی امکان استفاده از کاغذهای تحریر و کپی در مقایسه با کاغذ دکوراسیون همراه با استفاده از نانوآلومینای عامل‌دار در تولید روکش ملامینه

نوع مقاله : مقاله پژوهشی

نویسندگان

1 استادیار گروه مهندسی صنایع سلولزی، دانشکدۀ منابع طبیعی، دانشگاه صنعتی خاتم‌الانبیا، بهبهان، ایران

2 دانش‌آموختۀ کارشناسی ارشد گروه مهندسی صنایع سلولزی، دانشکدۀ منابع طبیعی، دانشگاه صنعتی خاتم‌الانبیا، بهبهان، ایران

چکیده

در این پژوهش، کاغذهای تحریر حاصل از خمیرکاغذ سودا باگاس، کپی و دکوراسیون روکش ملامینۀ تزیینی ساخته و ویژگی‌های آنها بررسی شد. برای ساخت روکش ملامینه، ویژگی‌های کاغذهای پایه قبل از آغشته‌سازی اندازه‌گیری شد. کاغذهای پایه ابتدا با رزین اوره‌فرمالدهید آغشته‌ و روی سطح تخته ‌فیبر با فشار کم پرس شدند. سپس پوشش‌دهی کاغذهای آغشته‌شده با رزین ملامین‌فرمالدهید همراه با افزودن نانوآلومینای عامل‌دار50 نانومتری در سه سطح (5/0، 1 و 5 درصد) با برس مویی نقاشی انجام گرفت. ویژگی‌های مقاومتی روکش‌های ملامینۀ حاصل شامل مقاومت به سایش، اثر لکه، اثر سوختن سیگار، اثر ترک و اثر ضربه بر نمونه‌ها ارزیابی شد. نتایج نشان داد که ویژگی‌های روکش ملامینه به نوع کاغذ پایه و درصد نانوآلومینا وابسته است. همچنین مهم‌ترین ویژگی کاغذ پایه که به‌طور مستقیم بر ویژگی‌های روکش ملامینه اثر داشت، مقدار جذب آب کاغذ پایه بود. در ضمن بین تأثیر ویژگی‌های کاغذ پایه و اثر نانوآلومینا بر ویژگی‌های روکش ملامینه اثر متقابل وجود دارد، به‌طوری ‌که مقدار استفاده از آن برای بهبود ویژگی‌های روکش ملامینه به ویژگی‌های کاغذ پایه وابسته است. در مجموع کاغذ چاپ و تحریر حاصل از باگاس به روش سودا و کپی در صورت آغشته‌سازی و ملامینه شدن، اگرچه از نظر برخی ویژگی‌ها مشابه کاغذهای دکوراسیون رفتار کردند، برای قابلیت جایگزینی، برخی از ویژگی‌های آنها باید اصلاح شود.

کلیدواژه‌ها

عنوان مقاله [English]

Evaluation of writing and copy papers compared with decorative paper with using functionalized nanoalumina in the production of melamine laminate veneer

نویسندگان [English]

  • Pejman Rezayati Charani 1
  • Sohrab Erfani 2
  • Mohammad Ali Saadatnia 1
1 Assis., Prof., Department of Cellulose Technology Engineering, Faculty of Natural Resources, Behbahan Khatam Alanbia University of Technology, Behbahan, I.R. Iran.
2 M.Sc. Graduated, Department of Cellulose Technology Engineering, Faculty of Natural Resources, Behbahan Khatam Alanbia University of Technology, Behbahan, I.R. Iran.
چکیده [English]

In this study, melamine laminated veneers (MLV) were made with bagasse writing paper, copy and decorative papers and their properties were investigated. In order to make MLV, the properties of the base papers were measured before impregnation and then the base papers were first impregnated with urea formaldehyde resin and pressed on the surface of the low-pressure fiber board. Then, all papers were coated with melamine formaldehyde resin together with functionalized nanoalumina, with 50 nm particle dimensions at 3 levels of 0.5, 1 and 5% (w/w) by painting brush. MLV strength properties including wear resistance, stain, cigarette burning, crack and impact effects were measured. Results showed that the melamine coating properties were dependent on the base paper type and the percentage of nanoalumina. Also, the most important feature of base paper that directly affected the properties of MLV was the water absorption rate. In addition, there was an interaction between the effect of the base paper properties and the effect of nanoalumina on the properties of the MLV so that the amount of nanoalumina used to improve melamine coating properties depended on the properties of the base paper. Overall, if the stationery and commercial copy papers are impregnated with melamine coatings, in some respects they behave completely as decorative papers but to be replaced completely with them, some of their properties have to be improved.

کلیدواژه‌ها [English]

  • Bleached soda pulp of bagasse
  • Melamine laminated veneer
  • Writing paper
  • Copy paper
  • Decorative paper
  • Functionalized nanoalumina

مراجع

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نشریه جنگل و فرآورده های چوب
دوره 73، شماره 4
بهمن 1399
صفحه 455-466

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