| 张佳琦,张迪,王鑫,桂宙.表面改性纳米红磷-聚乙烯醇高性能复合薄膜的制备及性能研究[J].火灾科学,2024,33(3):162-168. |
| 表面改性纳米红磷-聚乙烯醇高性能复合薄膜的制备及性能研究 |
| Preparation and properties of high-performance surface modified nano-red phosphorus-polyvinyl alcohol composite films |
| |
| 查看全文 查看/发表评论 下载PDF阅读器 |
| DOI：10.3969/j.issn.1004-5309.2024.03.04 |
| 基金项目:国家自然科学基金面上项目(22175167);国家重点研发计划项目(2022YFA1602601) |
|
| 中文关键词: 红磷 纳米颗粒 复合材料 热性能 阻燃性能 |
| 英文关键词:Red phosphorus Nanoparticles Composite material Thermal performance Fl
ame retardancy |
| 摘要点击次数: 20 |
| 全文下载次数: 43 |
| 中文摘要: |
| 以红磷(RP)、二乙烯三胺(DETA)和聚乙二醇(PEG)为原料,采用简单、低毒的胺类溶解法制备得到了纳米红磷颗粒(NRP@PEG)。通过溶液混合法将NRP@PEG引入聚乙烯醇(PVA)基体中,制备了阻燃型聚乙烯醇复合薄膜(PVA-NRP@PEG)。热重分析(TGA)表明,添加2.0 wt%的NRP@PEG,使残炭量较纯样PVA增加195%。微型量热仪(MCC)结果显示,NRP@PEG的添加对热释放容量(HRC)和总热释放量(THR)有明显降低作用,可以有效减少燃烧过程的热释放,提高PVA的阻燃性。并且,PVA-NRP@PEG薄膜具有良好的透光性和机械性能,加入1.0 wt%的NRP@PEG可以在保证PVA韧性基础上使拉伸强度增加76.7%。此外,还利用扫描电镜(SEM)对复合薄膜的凝聚相阻燃机理进行了研究。 |
| 英文摘要: |
| In this paper, red phosphorus nanoparticles (NRP@PEG) were prepared by a simple and low-toxic amine dissolution method using red phosphorus (RP), diethylenetriamine (DETA) and polyethylene glycol (PEG) as raw materials. Flame retardant polyvinyl alcohol composite films (PVA-NRP@PEG) were prepared by introducing NRP@PEG into the PVA matrix using the solvent mixing method. Thermogravimetric analysis showed that adding 2.0 wt% NRP@PEG increased the carbon residue content by 195% compared with PVA. The microcalorimeter (MCC) results demonstrate that adding NRP@PEG can significantly decrease the heat release capacity and total heat release value, effectively reducing the heat release during combustion and enhancing PVA's flame retardancy. Moreover, PVA-NRP@PEG film exhibits excellent light transmittance and mechanical properties, with a 76.7% increase in tensile strength when incorporating 1.0 wt% NRP@PEG while maintaining PVA toughness. In addition, scanning electron microscopy (SEM) was used to study the flame retardant mechanism of the condensed phase. |
| 关闭 |
|
|
|
