| Application of Microencapsulated Ammonium Polyphosphate in NR Compounds |
| Received:April 26, 2024 Revised:April 26, 2024 |
| DOI：10.12136/j.issn.1000-890X.2026.03.0185 |
| Key Words: polyphosphoric amine；microencapsulation；surface treatment；NR；dynamic mechanical performance |
| Author Name | Affiliation | E-mail | | LI Ruijiang | Taiyuan Institute of Technology
North University of China | 396437174@qq.com | | LIANG Yurong* | Taiyuan Institute of Technology | liangyr7103@aliyun.com | | WANG Peifang | Taiyuan Institute of Technology | | | HOU Guoqing | Taiyuan Institute of Technology | | | SU Jundong | Taiyuan Institute of Technology | | | WANG Nana | Taiyuan Institute of Technology | |
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| Abstract: |
| Ammonium polyphosphate（APP） or microencapsulated APP（MAPP）/melamine（MEL）/pentaerythritol（PER） intumescent flame retardant systems were added to natural rubber（NR） compounds，and the effect of APP microencapsulation on the properties of NR compounds were studied.Fourier transform infrared spectroscopy，scanning electron microscopy，thermogravimetric and water contact angle analysis indicated that nitrogen-phosphorus-carbon integrated MAPP was successfully prepared through a silica sol coating process.When the APP or MAPP/MEL/PER ratio was 30/10/10，compared with NR compounds added with APP，NR composites added with MAPP exhibited higher tensile strength，better hydrophobicity，flame retardancy and dynamic mechanical properties. |
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