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The Effect of Using Cationic Starch and Bentonite on Physical and Mechanical Properties of Old Recycled Pulp | ||
| تحقیقات علوم چوب و کاغذ ایران | ||
| Article 11, Volume 36, Issue 4 - Serial Number 77, December 2021, Pages 404-416 PDF (862.56 K) | ||
| Document Type: Research Paper | ||
| DOI: 10.22092/ijwpr.2021.351574.1631 | ||
| Authors | ||
| Ramin Vaysi* 1; Kiyoumars Vaghari2 | ||
| 1Associate Prof., Dept. of Wood and Paper Science and Technology, Islamic Azad University of Chalous, Iran, | ||
| 2Wood and Paper Technology (MS), KAVEH Paper making mill, Saveh, Iran. | ||
| Abstract | ||
| This study and it aim was accomplished on cationic starch and nano-clay(bentonite) on physical and mechanical properties of old recycled pulp. For this purpose, first some of old recycled pulp were randomly selected from Kaveh Industries in Saveh city as control. Then, nano-clay used in 0, 0.3 and 0.6 % levels. The cationic starch were added in 0, 1, 1.5 and 2 % levels and imported long fibers with 0 and 15 % levels to old recycled pulp suspensions. The hand sheets were prepared from above-mentioned of pulps with 140 gr/m2 basis weight and then the phesical and mechanical properties were measured and compared according to TAPPI standard test methods. The results showed that tear, tensile, burst strengths and ring crust test and corrugated medium test were increased and cobb 60 and thickness were decreased. The results showed that all physical and mechanical properties improved with 5% addition 15% imported long fiber. The results showed that using 2 cationic starch with 0.6 % nano-clay and 15% imported long fiber improved the most paper properties, too. | ||
| Keywords | ||
| Old recycled pulp; cationic starch; nano-clay; imported long fiber | ||
| References | ||
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