| 黄雄伟,王冠华,张博,韩煜,刘一乐,隋文杰,司传领.纳米纤维素增强结壳型纸基抑尘剂的制备及性能研究[J].中国造纸,2025,44(7):1-10 |
二维码（扫一下试试看！） |
| 纳米纤维素增强结壳型纸基抑尘剂的制备及性能研究 |
| Research on Preparation and Performances of Shell-formed Paper-based Dust Suppressant Reinforced by Nanofibrillated Cellulose |
| 收稿日期：2025-01-22 修订日期：2025-02-18 |
| DOI：10.11980/j.issn.0254-508X.2025.07.001 |
| 关键词: 纳米微纤化纤维素 废纸纤维 抑尘剂 性能测试 |
| Key Words:nanofibrillated cellulose waste paper fiber dust suppressant performance test |
| 基金项目:国家自然科学基金面上项目（32071721）。 |
| 作者 | 单位 | 邮编 | | 黄雄伟* | 天津科技大学生物源纤维制造技术国家重点实验室,天津市制浆造纸重点实验室,天津,300457 | 300457 | | 王冠华* | 天津科技大学生物源纤维制造技术国家重点实验室,天津市制浆造纸重点实验室,天津,300457 | 300457 | | 张博 | 天津科技大学生物源纤维制造技术国家重点实验室,天津市制浆造纸重点实验室,天津,300457 | 300457 | | 韩煜 | 天津科技大学生物源纤维制造技术国家重点实验室,天津市制浆造纸重点实验室,天津,300457 | 300457 | | 刘一乐 | 天津科技大学生物源纤维制造技术国家重点实验室,天津市制浆造纸重点实验室,天津,300457 | 300457 | | 隋文杰 | 天津科技大学生物源纤维制造技术国家重点实验室,天津市制浆造纸重点实验室,天津,300457 | 300457 | | 司传领 | 天津科技大学生物源纤维制造技术国家重点实验室,天津市制浆造纸重点实验室,天津,300457 | 300457 |
|
| 摘要点击次数: 3220 |
| 全文下载次数: 871 |
| 摘要:采用纳米微纤化纤维素（nanofibrillated cellulose, NFC）作天然高分子助剂，与纸浆混合，通过NFC添加量和纸基抑尘剂喷洒定量的优化，制备了一种性能优异的结壳型全纤维纸基抑尘剂，并利用综合形貌表征、种子萌发实验和户外实地实验，探讨了其适用性。结果表明，当NFC添加量为6%（相对于绝干浆）时，将纸基抑尘剂喷洒在沙土表面（喷洒定量5 L/m2）后，其可以形成致密的高强度纤维膜壳，与NFC添加量0的纸基抑尘剂相比，膜壳的抗压性能由510 kPa提高至1 470 kPa；抗风性能显著提高，沙土损失率由32.8%降至几乎为0（沙土损失率0.41%）；抗雨蚀性能由78.1%提高至90.3%；抗蒸发性能更优异，水分蒸发速率明显降低。在纸基抑尘剂中添加NFC，能促使其形成的膜壳微观结构更加致密，进而增强纸浆纤维之间的结合强度，提高纸基抑尘剂性能，且该纸基抑尘剂形成的膜壳能达到长期抑制扬尘污染的效果，同时对植物种子萌发及幼苗生长无影响。 |
| Abstract:Using nanofibrillated cellulose (NFC) as natural polymer additives， mixed with pulp， the shell-formed full-fiber paper-based dust suppressant with excellent performances was prepared by optimizing the dosage of NFC and spraying quantity of paper-based dust suppressant. The applicability of it was discussed by comprehensive morphology characterization， seed germination experiment， and outdoor field experiment. The results showed that when the dosage of NFC (relative to the mass of adiabatic pulp) was 6%， the paper-based dust suppressant was sprayed on the sand surface (spraying quantity of 5 L/m2)， which could form a dense and high-strength fiber film shell. Compared with the paper-based dust suppressant without NFC， the compressive property of the film shell increased from 510 kPa to 1 470 kPa. The wind resistance was significantly improved， and the sand loss rate was decreased from 32.8% to almost 0 (sand loss rate of 0.41%). The rain erosion resistance was increased from 78.1% to 90.3%. The anti-evaporation performance was more excellent， and the water evaporation rate was significantly reduced. Adding NFC to the paper-based dust suppressant could promote the formation of a denser film shell microstructure， thereby enhancing the bonding strength between pulp fibers and improving the performances of the paper-based dust suppressant. The film shell formed by the paper-based dust suppressant could achieve the effect of long-term suppression of dust pollution， and had no effect on plant seed germination and seedling growth. |
| 查看全文
HTML
查看/发表评论 下载PDF阅读器 |
|
|
|