Effects of Populous Deltoids Chips Washing Pre- Treatment Method on CMP Optical and Strength properties. . | ||
| تحقیقات علوم چوب و کاغذ ایران | ||
| Article 1, Volume 31, Fall 3 - Serial Number 56, September 2016, Pages 375-387 PDF (750.07 K) | ||
| Document Type: Research Paper | ||
| DOI: 10.22092/ijwpr.2021.106305 | ||
| Authors | ||
| Maryam Alipoor1; Ghasem Asadpur Atouei* 2; Seaid Majid Zabihzadeh3; Zohreh Ghazvini4 | ||
| 1M.Sc., Pulp and Paper, University of Agricultural Sciences and Natural Resources, Sari, Iran | ||
| 2Assistant Professor Department of Wood and Paper Science and Technology, Department of Natural Resources, University of Agricultural Sciences and Natural Resources, Sari, Iran, | ||
| 3Associate Professor Department of Wood and Paper Science and Technology, Department of Natural Resources, University of Agricultural Sciences and Natural Resources, Sari, Iran | ||
| 4M.Sc., Department of Natural Resources, University of Agricultural Sciences and Natural Resources, Sari, Iran | ||
| Abstract | ||
| With considering that in chemical-mechanical pulp (CMP) production process , the wood chips washing pre-treatment is important , so this research was conducted to investigate the effect of pre-treatment washing of populous deltoids wood chips on CMP Optical(brightness and opacity) and Strength(tensile and burst indexes) properties. Pre-treatment was accomplished with pure hot water and alkaline solutions (NaOH) at three levels of 0.5, 2 and 3.5 percent too. Pre-treated populous deltoids wood chips and control (chips without washing) were converted to pulp by CMP process. The results of this research indicated that the pretreatment of populous deltoids wood chips with hot water and also alkaline solutions caused wood chips mass and using of these treated chips for pulping caused pulp yield and brightness increscent, pulp strength reduction and also energy consumption increscent. . Removing of some part of chips hemicellulos have negative effect on the pulp refinability and cause pulp strength reduction. | ||
| Keywords | ||
| alkaline pre-treatment; Populus; brightness; EXTRACTIVES; CMP pulp | ||
| References | ||
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