کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
773338 1463473 2016 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Preparation and performance of lignin–phenol–formaldehyde adhesives
ترجمه فارسی عنوان
آماده سازی و عملکرد چسب لیگنین ـ فنل ـ فرمالدئید
کلمات کلیدی
فنل فرمالدئید؛ لیگنین؛ چسب؛ تخته چندلا
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی مکانیک
چکیده انگلیسی

Steam explosion lignin phenol formaldehyde (SEL–PF) adhesives were prepared by ternary gradual copolymerization. The parameters for the phenolate of steam explosion lignin (SEL) and preparation of SEL–PF adhesives were optimized. Under the optimum phenolate conditions, the phenolic hydroxyl content of lignin increased by 130%, whilst the methoxyl content was reduced by 68%. The SEL–PF adhesives were used to prepare plywoods by hot-pressing. The pH value, viscosity, solid content, free phenol content and free formaldehyde content of SEL–PF adhesives were investigated. The bonding strengths of the plywoods glued with SEL–PF adhesives were determined. The maximum SEL replacement percentage of phenol reached 70 wt%, and the properties of adhesives and plywoods met the Chinese National Standard (GB/T 14732-2006) for first grade plywood.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Adhesion and Adhesives - Volume 64, January 2016, Pages 163–167
نویسندگان
, , , , , ,