| تعداد نشریات | 282 |
| تعداد نشریات سازمان | 80 |
| تعداد شمارهها | 3,230 |
| تعداد مقالات | 35,788 |
| تعداد مشاهده مقاله | 54,015,217 |
| تعداد دریافت فایل اصل مقاله | 93,172,470 |
پتانسیل GL به عنوان پلیمر کاتیونی در کنترل مواد چسبناک خمیرکاغذ OCC | ||
| تحقیقات علوم چوب و کاغذ ایران | ||
| مقاله 9، دوره 33، شماره 2 - شماره پیاپی 63، تیر 1397، صفحه 256-269 اصل مقاله (446.85 K) | ||
| نوع مقاله: مقاله پژوهشی | ||
| شناسه دیجیتال (DOI): 10.22092/ijwpr.2018.116639.1450 | ||
| نویسندگان | ||
| علی احمدی لاجیمی1؛ محمد آزادفلاح* 2؛ مهدی رحمانی نیا3؛ یحیی همزه4 | ||
| 1گروه علوم و صنایع چوب و کاغذ - دانشگاه تهران | ||
| 2دانشگاه تهران | ||
| 3عضو هیئت علمی دانشگاه تربیت مدرس | ||
| 4استاد- دانشکده منابع طبیعی کرج- دانشگاه تهران | ||
| چکیده | ||
| مواد چسبناک ازچالشهای مهم در کارخانههای بازیافت کاغذ هستند. این مواد مضر با رسوب بر روی اجزای ماشین کاغذ موجب پارگی کاغذ و همچنین کاهش کیفیت محصول نهایی میشوند. از این رو کنترل این مواد و کاهش اثرات مخرب آن ضروری است. استفاده از پلیمرهای کاتیونی به عنوان عامل تثبیت کننده از روشهای موثر کنترل این مواد شناخته می-شوند. لذا در این پژوهش کنترل مواد چسبناک خمیرکاغذ OCCبا استفاده از یک پلیمرکاتیونی تجاری به نام GL در سه سطح 4/0، 8/0 و 2/1 درصد و بر اساس وزن خشک خمیرکاغذ در دو دامنه pH 4 و 7 بررسی شده است. برای ارزیابی کارایی این ترکیب مواد چسبناک ماکرو، مواد چسبناک میکرو، مواد محلول و کلوییدی، میزان کدورت و زمان آبگیری اندازهگیری و با مقادیر نمونههای شاهد مقایسه شدند. نتایج نشان دادند که پلیمرکاتیونی GL در سطح 4/0 و 8/0درصد در هر دوpH 4 و 7 به دلیل دلمهشدن و تثبیت مواد چسبناک بر روی الیاف، سبب کاهش میزان مواد چسبناک ماکرو، میکرو و محلول و کلوییدی و میزان کدورت شد درحالیکه زمان آبگیری بهبود یافت. هرچند، پلیمر کاتیونی GL در مقدار 2/1 درصد عملکرد موثری در کنترل مواد چسبناک از خود نشان نداد. به طورکلی میتوان نتیجه گرفت در صورت مصرف پلیمر کاتیونی GL در دوز و pH مناسب می توان از آن به طور موثری در کنترل مواد چسبناک حاصل از فراوری خمیرکاغذ OCC استفاده کرد. | ||
| کلیدواژهها | ||
| مواد چسبناک؛ پلیمرکاتیونی؛ خمیرکاغذ OCC؛ دلمه سازی | ||
| عنوان مقاله [English] | ||
| Potential of GL as cationic polymer to control stickies of OCC pulp | ||
| نویسندگان [English] | ||
| Ali Ahmadi ladjimi1؛ Mohammad Azadfallah2؛ Mehdi Rahmaninia3؛ Yahya Hamzeh4 | ||
| 1Wood and Paper Science and Technology Department, University of Tehran | ||
| 2University of Tehran | ||
| 3Wood and Paper Science and Technology Department, Faculty Of Natural Resources, Tarbiat Modares University | ||
| 4Wood and Paper Science and Technology Department | ||
| چکیده [English] | ||
| Stickies is among the major challenges in paper recycling mills. This substance deposits on paper machine components and cause to break paper web as well as loss of end product quality. So, it is necessary to control the stickies and lessen its detrimental effects. It is known that cationic polymers as fixing agents can control the stickies efficiently. Therefore, the control of stickies of OCC pulp using a commercial cationic polymer called GL at 0.4, 0.8 and 1.2 percent based on oven dry weight of pulp at pH 4 and pH 5 were investigated. Macro- and microstickies, dissolved and colloid substances (DCS), turbidity, and drainage time were measured to evaluate GL efficiency and compared with control sample. The results indicated that GL dosing at 0.4 and 0.8 percent in pH 4 and 7 due to flocculation and fixing the stickies onto the fiber caused to decrease in macro stickies, microstickies and DCS while improved the drainage time. Although, no efficient performance was observed in controlling stickies at higher content of GL i.e. 1.2 percent. Generally, it is concluded that with consuming at desired pH and dosage content, GL can be used as efficient agent to control stickies in processing of OCC pulp. | ||
| کلیدواژهها [English] | ||
| Stickies, cationic polymer, OCC pulp, FLOCCULATION | ||
| مراجع | ||
|
- Antunes, E., Garcia, F.A.P., Ferreira, P., Blanco, A., Negro, C. and Rasteiro, M.G., 2008. Use of new branched cationic polyacrylamides to improve retention and drainage in papermaking. Industrial & Engineering Chemistry Research, 47: 9370–9375. - Bajpai, P., 2014. Recycling and Deinking of Recovered Paper. Elsevier, USA, 304p. - Ben, Y., Dorris, G., Hill, G. and Allen, J., 2003. Contaminant removal from deinking process water, Part I: Mill benchmarking. Pulp and Paper Canada, 104(1):42-48. - Blanco, A., Miranda, R., Negeo, C., Suarez, C., Prol, G.M. and Sanchez, A., 2007. Full characterization of stickies in a newsprint mill: the need for a complementary approach. Tappi Journal, 6 (1):19-25. - Castro, C. and Dorris, G,. 2004. Measuring microstickies deposition by monitoring pressure drop through a collector. Progress in Paper Recycling, 13(3): 23-32. -Chen, Q., Wang, P. and Yan, Y., 2011. Study on the high charge density polyamine system in controlling dissolved and colloidal substances of high-yield pulp. Trans Tech Publications, Switzerland, 1363-1366. -Dai, Z. and Ni, Y., 2010. Thermal stability of metal-pitch deposits from a spruce thermomechanical pulp by use of a differential scanning calorimeter. BioResources, 5(3): 1923-1935. -Doshi M.R., 1997. Paper Recycling Challenge: Volume 4. Process Control and Mensuration. Tappi Press, p.199. -Gantenbein, D., Schoelkopf, J., Gane, P.A.C. and Matthews, G.P., 2010. Influence of pH on the adsorption of dissolved and colloidal substances in a thermo-mechanical pulp filtrate onto talc. Nordic Pulp and Paper Research Journal 25(3):288-299. -Gruber, E., Gattermayer, J. and Pätzold, R., 2000. Adsorption of micro-disperse polymers with adhesive potential (micro-stickies). Ipw / Das Papier, 5: 74-80. -Hubbe, M.A., 2002, Fines management for increased paper machine productivity. Proceedings of Scientific and technical advances in wet end chemistry. Pira, Barcelona, 22–23 May. -uo, X., 2002. Adhesive contaminants (stickies): characterization and their interaction with papermaking components during paper recycling. Doctoral thesis, North Carolina State University, Department of wood and paper science, 163 p. -INGEDE 4, 2013. Analysis of macrostickies in pulps. International association of the deinking industry, Ingede methtod 4. -John, W., Buckley, C.A., Jacobs, E.P. and Sanderson, R.D., 2002. Synthesis and use of POLYDADMAC for water purification. Paper presented at the Biennial Conference of the Water Institute of Southern Africa (WISA). 19 – 23 May 2002, Durban, South Africa. -Kim, J. and Lee, H., 2007. Influence of several physicochemical conditions on the flocculation of micro stickies. Journal of Korean TAPPI, 40(5):20-26. -Kirilova, S. and Lindberg, S., 2012. Sticky Deposits in a Tissue Manufacturing Process. Master of Science Thesis. Department of Chemical and Biological Engineering, Chalmers University of Technology, Göteborg, Sweden. -Lee, R.A., 2012. The Stability of Wood Resin Colloids in Paper Manufacture. Ph.D thesis, University of Tasmania. -Miao, Q., Huang, L. and Chen, L., 2013. Advances in the control of dissolved and colloidal substances present in papermaking processes: a brief review. BioResources, 8(1):1431-1455. -Mwangi, I.W., Ngila J.C. and Ndungu P., 2012. A new spectrophotometric method for determination of residual polydiallyldimethylammonium chloride flocculant in treated water based on a diazotization-coupled ion pair. Water SA, 38 (5): 707-714. -Ravnjak, D., Zule, J. and Moze, A., 2003. Removal of detrimental substances from papermaking process water by the use of fixing agents. Acta Chimica Slovenica, 50:149-158. -Razali, M.A.A., Ahmad, Z., Ahmad, M.S.B. and Ariffin, A., 2011,Treatment of pulp and paper mill wastewater with various molecular weight of polyDADMAC induced flocculation. Chemical Engineering Journal, 166:529–535. -Wang, L., Chen, S. and Zhou, J., 2006. Performance of fixing agents in controlling micro stickies in recycled newsprint pulp. China Pulp & Paper, 25(7):1-4. -Wang, Z.W., Li, B., Wu, S.B. and Lu, p., 2012. Phsicochemical properties analysis and size distribution research of microstickies in white water. BioResources, 7(4):7794-5808. -Wang, L., Zhang, Y., Di, T., Luo, L. and Zhao, H., 2014. Starch-based fixative with proper substitution degree for controlling dissolved and colloidal substances in a bleached chemitherm omechanical Pulp. Starch/Stärke, 66: 992-997. -Woodward, T., 1996. Controlling contaminants in the production and use of deinked pulp. Wastepaper VII conference. Chicago, IL. | ||
|
آمار تعداد مشاهده مقاله: 810 تعداد دریافت فایل اصل مقاله: 636 |
||