کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
11004253 | 1469459 | 2018 | 23 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Self-healing improves the stability and safety of polymer bonded explosives
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Self-healing improves the stability and safety of polymer bonded explosives Self-healing improves the stability and safety of polymer bonded explosives](/preview/png/11004253.png)
چکیده انگلیسی
Polymer-bonded explosives (PBXs) are often subjected to different external environmental conditions with various temperature and humidity during long-term storage, transportation, and usage process. The change in temperature and humidity will result in PBXs cracks formation and cause higher risk of explosion evolution when undergoing various stimulus including impact or friction. Herein, a self-healing polymer binder is developed to solve this problem. The fluoropolymer gel binder, a PVDF-co-HFP (copolymer of CH2-CF2 and CF2-CF(CF3))/EMIOTf (1-ethyl-3-methylimidazolium trifluoromethanesulfonate)/graphene ternary composite, has high density, high thermal conductivity, excellent interfacial adhesion property, and exhibits self-healing ability at room temperature. Highly filled PBXs composites with 95% of explosive 2, 6-diamino-3, 5-dinitropyrazine-1-oxide (LLM-105) and 5% of ternary composite are fabricated. The as-prepared PBX samples have high denotation parameter (7800â¯mâ¯sâ1), low impact sensitivities (11-12â¯J), and low friction sensitivity (no sparks was observed even at friction energy load of 0.36â¯N). More importantly, our PBXs have effective crack healing ability within 48â¯hâ¯at room temperature. Therefore, the stability and safety of PBXs are improved through the self-healing polymer binder. Such PBXs can find widespread application in various military and civil fields.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Composites Science and Technology - Volume 167, 20 October 2018, Pages 346-354
Journal: Composites Science and Technology - Volume 167, 20 October 2018, Pages 346-354
نویسندگان
Xin Huang, Zhong Huang, Jian-Cheng Lai, Lei Li, Guang-Cheng Yang, Cheng-Hui Li,