贾颖,陈广学,汤树海.纳米木质素复合膜的制备及性能研究[J].包装工程,2024,45(15):23-29.
JIA Ying,CHEN Guangxue,TANG Shuhai.Preparation and Properties of Lignin Nanocomposite Film[J].Packaging Engineering,2024,45(15):23-29. |
| 纳米木质素复合膜的制备及性能研究 |
| Preparation and Properties of Lignin Nanocomposite Film |
| 投稿时间：2024-03-22 |
| DOI：10.19554/j.cnki.1001-3563.2024.15.003 |
| 中文关键词: 纳米木质素 聚乙烯醇 纳米沉淀 复合膜 紫外屏蔽性能 |
| 英文关键词: nano lignin particles polyvinyl alcohol nanoprecipitation composite film UV shielding properties |
| 基金项目:国家自然科学基金面上项目(61973127);广东省自然科学基金(2022A1515011416);广东省科技专项资金(210719155863891) |
|
| 摘要点击次数: |
| 全文下载次数: |
| 中文摘要: |
| 目的 解决目前传统石油基复合材料难以降解和回收，造成的严重环境污染和资源浪费等问题。方法 通过对造纸副产物脱碱木质素进行纳米化，并作为填料分散到聚乙烯醇(Polyvinyl alcohol, PVA)和甜菜碱(Betaine, Bta)组成的PVA/Bta(Polyvinyl alcohol/ betaine, PALB)聚合物基质中，利用溶液浇铸法制备复合膜材料。结果 通过纳米化沉淀法制备的纳米木质素(N- lignin nanoparticles, NLNPs)具有粒径小、颗粒均匀、能够稳定存放等优点。制备的NLNP/PALB复合膜材料的力学强度达到105 MPa，拉伸应变达到385%，还具有优异的紫外屏蔽效率和热稳定性。结论 基于复合膜的优异特性，有望应用于环境友好型食品包装等领域。 |
| 英文摘要: |
| The work aims to solve the problem that traditional petroleum-based composites are difficult to be degraded and recycled, causing serious environmental pollution and resource waste. In this study, the dealkalized lignin, a by-product of papermaking process, was nanosized and dispersed as a filler into a PVA/Bta (polyvinyl alcohol/ betaine, PALB) polymer matrix composed of polyvinyl alcohol (PVA) and betaine (Bta), and then used to prepare composite film materials by the solution casting method. N-lignin nanoparticles (NLNPs) prepared by nanoprecipitation had the advantages of small particle size, uniform particles and stable storage property. Therefore, the prepared NLNP/PALB composite film material had a mechanical strength of 105 MPa and a tensile strain of 385% and also had excellent UV shielding efficiency and excellent thermal stability. Based on the excellent properties, the composite film is expected to be applied in environmentally friendly food packaging and other fields. |
|
查看全文
查看/发表评论 下载PDF阅读器 |
| 关闭 |
|
|
|
渝公网安备 50010702501716号