CHINESE JOURNAL OF ENERGETIC MATERIALS
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Rheological Behavior of the Compound Mixed with Metastable Aluminum-based Composites and Typical Binders
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Science and Technology on Combustion and Explosion Laboratory, Xi′an Modern Chemistry Research Institute, Shanxi, Xi′an 710065, China

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    Abstract:

    The dispersion characteristics of metal additives in binders might tremendously affect the processing properties of propellants and explosives. Rheological properties of the two metastable intermolecular composites (QAlPV and PAlPV) mixed with hydroxyl-terminated polybutadiene (HTPB), glycidyl azide polymer (GAP) or poly (ethyleneoxide-co-teterafuran) (PET) separately were investigated by RS-300 rheometer respectively. Results show that all the six sorts of suspensions exhibited pseudoplastic fluid characteristics, and their apparent viscosity decreases with the increase of temperature between 20 ℃ and 60 ℃. In the systems containing GAP and PET, the flow activation energy of the suspensions with PALPV is greater than those containing QALPV. The results present that the suspensions filled with the lamellar aluminum-based composite exhibites more rigidity, meanwhile their apparent viscosity are more sensitive to temperature. Therefore, the dispersion of PALPV in binders could be improved by increasing the temperature. The dispersion and homogeneity of the suspensionsformed by QALPV, GAP or PET separately could be improved by accelerating the shear rate.

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姜菡雨,姚二岗,张建侃,等.铝基亚稳态复合物与典型黏合剂混合物的流变性能[J].含能材料,2021,29(10):914-919.
JIANG Han-yu, YAO Er-gang, ZHANG Jian-kan, et al. Rheological Behavior of the Compound Mixed with Metastable Aluminum-based Composites and Typical Binders[J]. Chinese Journal of Energetic Materials,2021,29(10):914-919.

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History
  • Received:April 08,2021
  • Revised:August 23,2021
  • Adopted:August 04,2021
  • Online: August 13,2021
  • Published: October 25,2021