Microcellular Oblate Propellant with Skin-core Structure Deterred by Poly(neopentanediol adipate)

• Autorzy: Ding Yajun , Ying Sanjiu , Xiao Zhongliang , Wu Wenlong , Li Chunzhi , He Yun

Identyfikatory

DOI

10.22211/cejem/119050

• Języki publikacji: EN

Abstrakty

EN

In order to solve the issues of high muzzle flash, smoke, residue, migration rate and carcinogenicity of double-base oblate propellants deterred by dibutyl phthalate (DBP), skin-core structure microporous oblate propellants to replace DBP deterring technology were fabricated in the present work by supercritical carbon dioxide (SC-CO2) foaming technology. Poly(neopentanediol adipate) (NA) was employed as the deterrent to modify the combustion properties because of ist lower migration rate in storage. Scanning electron microscopy (SEM) was used to observe the morphology of the microporous oblate propellants generated by different processing conditions, and the combustion properties were investigated by closed bomb tests. The SEM images indicated that the skin region displayed smaller cell diameters and lower cell density compared with cells in the core region. The closed bomb tests demonstrated that it was feasible to adjust the progressive combustion performance by controlling the skin-core structure and the NA deterred layer. The burning time values of the original, the microcellular, and the NA deterred samples were 3.45, 2.14, and 4.20 ms, respectively. Microcellular oblate propellants, with a skin-core structure foamed by SC-CO2 and deterred by NA, provides a novel and promising method to realize progressive combustion performance.

Słowa kluczowe

EN

SC-CO2; microcellular oblate propellant; skin-core structure; poly(neopentanediol adipate) deterring; combustion performance

• Czasopismo: Central European Journal of Energetic Materials
• Rocznik: 2020
• Tom: Vol. 17, no. 1
• Strony: 49--65
• Opis fizyczny: Bibliogr. 14 poz., rys., tab.

Twórcy

autor

Ding Yajun

• Key Laboratory of Special Energy Materials (Nanjing University of Science and Technology), Ministry of Education, Nanjing 210094, China
• School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China

autor

Ying Sanjiu

• Key Laboratory of Special Energy Materials (Nanjing University of Science and Technology), Ministry of Education, Nanjing 210094, China
• School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China

autor

Xiao Zhongliang

• Key Laboratory of Special Energy Materials (Nanjing University of Science and Technology), Ministry of Education, Nanjing 210094, China
• School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China

autor

Wu Wenlong

• Key Laboratory of Special Energy Materials (Nanjing University of Science and Technology), Ministry of Education, Nanjing 210094, China
• School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China

autor

Li Chunzhi

• Luzhou North Chemical Industry Co., Ltd., Luzhou 646003, China

autor

He Yun

• Luzhou North Chemical Industry Co., Ltd., Luzhou 646003, China

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020).