The effect of anionic charge reduction of deinked pulp in Physical Strengths Improvement | ||
| تحقیقات علوم چوب و کاغذ ایران | ||
| Article 8, Volume 32, Issue 1 - Serial Number 58, April 2017, Pages 83-93 PDF (363.1 K) | ||
| Document Type: Research Paper | ||
| DOI: 10.22092/ijwpr.2017.107117 | ||
| Authors | ||
| Seyyed Abbas Mehdikhah1; Shademan Pourmousa* 2; Aghang Tajdini3 | ||
| 1M.Sc., graduated of Wood and Paper Science and Technology Depts., Agricultural and Natural Resources Faculty, Azad Islamic University, Karaj branch, Karaj, Iran | ||
| 2Associate Professor of Wood and Paper Science and Technology Depts., Agricultural and Natural Resources Faculty, Azad Islamic University, Karaj branch, Karaj, Iran | ||
| 3Assosiate Professor of Wood and Paper Science and Technology Depts., Agricultural and Natural Resources Faculty, Azad Islamic University, Karaj branch, Karaj, Iran | ||
| Abstract | ||
| Wet tensile strength is very important in some cellulosic health products. When these products produced during the recycling process some of the characteristics in pulp suspension due to lack of stability of desirable quality properties is difficult to achieve. In this study, using a variety of different doses of cationic polymers with laboratory methods, at first reduced the anionic charge amount in pulp suspension gradually. Then the Poly (amine) amide epichlorohydrin and its stabilizer injected to the suspension. The pulp suspension and physical properties of handsheets were evaluated. The type and amount of cationic polymers have a significant effect on the reduction of anionic charge of pulp suspension and the resulting increase in wet tensile strength and other physical resistance of handsheets. The effect of polymers resulted that anionic charge of suspension improved from 237 µeq /L in control samples to32µeq/L in the best conditions. Physical properties of handsheets improved after chemical treatments with different amounts of variety of polymers. Wet tensile strength increased than13 N/m to 121N/m, dry tensile strength improved 2730 N/m to 2860 N/m the burst resistance increased than 146 KPa to 160KPa in superior treatment using 135 mg/L of Gfloc F10. Stepwise regression analysis showed the significant relationship of the anionic charge in the pulp suspension and the physical properties of handsheets. So using different cationic polymers can be reduced the anionic charge of the pulp suspension and improved the quality properties of paper base products. | ||
| Keywords | ||
| Anionic Charge; Cationic polymers; Wet tensile strength; Step wise Regression | ||
| References | ||
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