بررسی تاثیر اسپری نانوفیبرسلولز و نانوکیتوزان بر روی خواص کاغذ چاپ و تحریر

نوع مقاله : مقاله پژوهشی

نویسندگان

1 دانشیار دانشکده مهندسی چوب و کاغذ، دانشگاه علوم کشاورزی و منابع طبیعی گرگان، گرگان، ایران

2 دانش آموخته دکتری صنایع خمیر و کاغذ، دانشگاه علوم کشاورزی و منابع طبیعی گرگان، گرگان، ایران

چکیده

این تحقیق با هدف بررسی یک سیستم تجربی (اسپری) برای پوشش‌دهی نانوفیبرسلولز / نانوکیتوزان بر روی کاغذهای چاپ و تحریر به منظور بهبود ویژگی‌های ممانعتی و مکانیکی انجام شده است. نتایج آنالیزهای FE-SEM نشان داد که قطر متوسط نانوفیبرسلولز و نانوکیتوزان به ترتیب 10±28 و 10±40 نانومتر می‌باشد. جهت پوشش‌دهی کاغذ از نانوفیبرسلولز در 2 سطح (2 و 4 درصد) و نانوکیتوزان در 2 سطح (5/0 و 1 درصد) استفاده و با شرایط ثابت اسپری مانند زمان اسپری (20 ثانیه) و فاصله اسپری (20 سانتی‌متر) بر روی کاغذها اعمال و برخی ویژگی‌های آن طبق آئین‌نامه TAPPI اندازه‌گیری شد. نتایج نشان داد پوشش‌دهی نانوفیبرسلولز/ نانوکیتوزان به روش اسپری می‌تواند ویژگی‌های ممانعتی و مکانیکی کاغذ چاپ و تحریر را بهبود دهد. به‌طور کلی استفاده از این سیستم پوشش‌دهی می‌تواند با داشتن مزایای بهتر از روش پوشش‌دهی میله‌ای در ارتقاء کاغذهای چاپ و تحریر دارای قابلیت-های بالقوه باشد.

کلیدواژه‌ها

موضوعات


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