Rheological Characteristics of Highly Concentrated Polymer Bonded Explosive Simulant: Wall Slip, Thixotropy, and Flow Instability

作者：Lee Sangmook; Hong In Kwon; Ahn Youngjoon; Lee Jae Wook^*

来源：Polymer-Korea, 2014, 38(2): 213-219.

DOI：10.7317/pk.2014.38.2.213

• polymer bonded explosive
• simulant
• wall slip
• thixotropy
• flow instability

The rheological characteristics of highly concentrated polymer bonded explosive simulant were studied. Hydroxyl terminated polybutadiene (HTPB) and polyethylene plastomer (Exact) were used as binders. Sugar and Dechlorane particles whose physical properties are similar to research department explosive (RDX) were used as fillers. When HTPB was used, diethyl hexyl adipate (DEHA or DOA) was used as a plasticizer together for some cases. Highly concentrated suspensions were mixed in a batch melt mixer (Rheomixer 600, Haake) and rheological properties were measured by plate-plate and capillary rheometers. Wall slip phenomena, thixotropy with shear hysteresis, and flow instability were investigated as shear rate and amount of fillers changed.

• 出版日期2014-3