| 苏艳群,肖贵华,李洪才,夏菲,张瑞娟,刘金刚,杨小博,葛继明,李红.聚乙烯醇/纳米颜料复合涂料改善薄页纸阻隔性能的研究[J].中国造纸学报,2025,40(4):140-146 |
二维码（扫一下试试看！） |
| 聚乙烯醇/纳米颜料复合涂料改善薄页纸阻隔性能的研究 |
| Research on Improving the Resistance Properties of Thin Paper with Polyvinyl Alcohol Nanocomposite Coating |
| 投稿时间：2025-04-12 修订日期：2025-06-16 |
| DOI：10.11981/j.issn.1000-6842.2025.04.140 |
| 中文关键词: 阻氧 阻湿 聚乙烯醇 纳米颜料 |
| Key Words:oxygen resistance moisture resistance polyvinyl alcohol nano pigment |
| 基金项目:中国轻工集团有限公司科技创新基金项目（ZQ2023YY-GX03）。 |
|
| 摘要点击次数: 45 |
| 全文下载次数: 23 |
| 中文摘要: |
| 为克服纸张作为阻隔包装材料时存在的阻氧、阻湿缺陷，本研究以紧度高的薄页纸为基材，以聚乙烯醇（PVA）分别与3种片状（纳米蒙脱土、纳米剥片瓷土、纳米水滑石）和1种球状（纳米二氧化硅）颜料组成的复合涂料为功能涂层进行改良，并探讨复合涂料中不同纳米颜料对薄页纸阻氧、阻湿性能的影响。结果表明，高径厚比片状纳米剥片瓷土用量为10份时的薄页纸，其阻隔性能最好，氧气透过率（OTR）和水蒸气透过率（WVTR）分别达到了76.6 cm3/(m2·24 h)和189.3 g/(m2·24 h)，较原纸的2 520 cm3/(m2·24 h)和207.3 g/(m2·24 h)分别降低了97%和9%。含有不同用量和种类纳米颜料的PVA/纳米颜料复合涂料，均可显著提高薄页纸的阻氧性能，但阻湿性能改善有限；当纳米颜料用量相同时，含纳米剥片瓷土、纳米蒙脱土、纳米水滑石和纳米二氧化硅涂层的OTR分别为76.5、73.5、50.2和90.2 cm3/(m2·24 h)，WVTR分别为189.3、187.2、185.6和197.3 g/(m2·24 h)。 |
| Abstract: |
| In order to overcome the oxygen and moisture resistance defects of paper as a barrier packaging material， the effects of different nano pigments including 3 kinds of flaky nanomaterials (montmorillonoid， platey kaolins， layered double hydroxide)， and 1 kind of spherical nanomaterial (silica) on the oxygen and moisture resistance performances of the thin paper were explored in this study， and thin paper with high tightness was used as the substrate and composite coatings composed of different nano pigments and PVA were used as the functional coating. The results showed that when the dosage of nano platey kaolin with high aspect ratio and flaky shape was 10 parts， the best resistance performances were achieved with oxygen transmission rate (OTR) and water vapor transmission rate (WVTR) reaching 76.6 cm3/(m²·24 h) and 189.3 g/(m²·24 h)， respectively， which had decreased by 97% and 9%， compared to the base paper’s 2 520 cm3/(m²·24 h) and 207.3 g/(m²·24 h). The PVA/nano pigments composite coatings containing different dosages and forms of nano pigments could significantly improve the oxygen resistance performance of thin paper， but the improvements in moisture resistance performance were limited. When the same dosage of nano pigments was used， the OTR values of composite coatings containing nano platey kaolins， nano montmorillonite， nano layered double hydroxide， and nano silica were 76.5， 73.5， 50.2， and 90.2 cm3/(m²·24 h), respectively， with WVTR values of 189.3， 187.2， 185.6， and 197.3 g/(m²·24 h), respectively. |
| 查看全文 查看/发表评论 下载PDF阅读器 HTML |
