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| Study on Pulping Performance of Arund donax cv. Lvzhou No.1 and Pennisetum Sinese in Different Growth Periods |
| Received:January 11, 2021 |
| DOI：10.11980/j.issn.0254-508X.2021.06.007 |
| Key Words:Arund donax cv. Lvzhou No.1 Pennisetum Sinese ultrasonic pulp performance |
| Fund Project:国家自然科学基金（31370146）；福建农林大学国际合作与交流项目（KXG15001A）；菌草生态产业协同创新中心攻关课题（K80ND800212）。 |
| Author Name | Affiliation | Postcode | | FANG Zhiyi | College of Mechanical and Electrical Engineering, Fujian Agriculture and Forestry University, Fuzhou, Fujian Province, 350000 | 350000 | | WANG Xiaoxi | College of Life Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian Province, 350000
National Engineering Research Center of JUNCAO Technology, Fujian Agriculture and Forestry University, Fuzhou, Fujian Province, 350000 | 350000 | | LEI Yating | College of Life Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian Province, 350000
National Engineering Research Center of JUNCAO Technology, Fujian Agriculture and Forestry University, Fuzhou, Fujian Province, 350000 | 350000 | | YE Dapeng | College of Mechanical and Electrical Engineering, Fujian Agriculture and Forestry University, Fuzhou, Fujian Province, 350000 | 350000 | | LIU Bin | National Engineering Research Center of JUNCAO Technology, Fujian Agriculture and Forestry University, Fuzhou, Fujian Province, 350000 | 350000 |
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| Abstract:The pulping performance of Arund donax cv. Lvzhou No.1 and Pennisetum Sinese in different growth periods of 1， 2， and 3 years by ultrasonic-assisted pretreatment and cooking process were evaluated. The research results showed that under the same pulping conditions （ultrasonic pretreatment with 4% alkali； sulfidity of 2%； ultrasonic time of 2 h； cooking alkali dosage of 6%， sulfidity of 0； solid-liquid ratio of 1∶4； maximum temperature of 170℃， and holding time of 1 h）， the 3-year-old Pennisetum Sinese was more suitable as a pulp raw material， the unscreened pulp yield was 49.3%， Kappa value was 14.5， viscosity was 850.63 mL/g， brightness was 39.3%. The contents of lignin and reducing sugar in ultrasonic pretreatment liquid were 4.3 g/L and 2.9 g/L， and those in cooking black liquid were 2.9 g/L and 5.7 g/L. tensile index of paper was 56.4 N·m/g， and tearing index was 20.5 mN·m2/g， burst index was 2.35 kPa·m2/g. |
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