| 赵梓屹,李晓,刘椿,王高升.纤维素酶与干强剂组合改善高打浆度棉浆脱水性能和纸张强度的研究[J].中国造纸,2026,45(8):171-178 |
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| 纤维素酶与干强剂组合改善高打浆度棉浆脱水性能和纸张强度的研究 |
| Study on Improving Dewatering Property of Cotton Pulp with High Beating Degree and Strength of Paper Combining Cellulase and Dry Strength Agent |
| 收稿日期：2026-02-02 修订日期：2026-04-02 |
| DOI：10.11980/j.issn.0254-508X.2026.08.018 |
| 关键词: 纤维素酶 干强剂 高打浆度棉浆 脱水 强度 |
| Key Words:cellulase dry strength agent cotton pulp with high beating degree dewatering strength |
| 基金项目: |
| 作者 | 单位 | 邮编 | | 赵梓屹* | 天津科技大学轻工科学与工程学院,天津市制浆造纸重点实验室,天津,300457 | 300457 | | 李晓 | 天津科技大学轻工科学与工程学院,天津市制浆造纸重点实验室,天津,300457 | 300457 | | 刘椿 | 天津科技大学轻工科学与工程学院,天津市制浆造纸重点实验室,天津,300457 | 300457 | | 王高升* | 天津科技大学轻工科学与工程学院,天津市制浆造纸重点实验室,天津,300457 | 300457 |
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| 摘要:为提升高打浆度棉浆在纸张成形过程中的脱水性能，研究了纤维素酶及其与干强剂阳离子聚丙烯酰胺（CPAM）组合处理对棉浆脱水性能和纸张物理性能的影响规律。结果表明，棉浆经纤维素酶处理后，打浆度和保水值均随着酶用量的增加而下降，当纤维素酶用量为12.55 IU/g时，压榨后纸幅含水量相较于未处理棉浆下降了2.6个百分点，此时纸张的抗张指数为34.3 N·m/g，耐折度为80次；在纤维素酶处理基础上进一步添加0.50%的干强剂CPAM后，与单独酶处理相比，压榨后纸幅含水量下降了约1个百分点，纸张抗张指数、耐折度分别提升了约23%和45%。因此，通过优化纤维素酶与干强剂CPAM组合工艺，可以在改善棉浆脱水性能的同时提高纸张的强度性能。 |
| Abstract:To improve the dewatering property of cotton pulp with a high beating degree during the paper-forming process， the effects of cellulase and its combined treatment with the dry-strength agent cationic polyacrylamide (CPAM) on the dewatering property of cotton pulp and the physical properties of the resulting paper were investigated. The results indicated， after the cotton pulp was treated with cellulase， both the beating degree and the water retention value decreased with enzyme dosage increasing. When the cellulase dosage was 12.55 IU/g， the moisture content of the wet web after pressing decreased by 2.6 percentage points compared with the untreated cotton pulp， while the tensile index of the paper was 34.3 N·m/g and the folding endurance was 80 times. Upon the further addition of 0.50% dry-strength agent CPAM based on the cellulase treatment， compared to the enzyme treatment alone， the moisture content of the pressed wet web decreased by about 1 percentage point， and the tensile index and the folding endurance increased by approximately 23% and 45%， respectively. By optimizing the combined process of cellulase and the dry-strength agent CPAM， the dewatering property of cotton pulp and the mechanical strength of the resulting paper were simultaneously enhanced. |
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