A bonding agent is a substance used to improve the mechanical properties of a composites by increasing the adhesion between polyurethane propellant particle matrix, which is effective with Ammonium Perchlorate in butadiene binders.
Apr 03, 2017· Using of the bonding agent (MAT4) improves the propellant mechanical properties more than the other used bonding agent such as HX-752 and MAPO. Strain corresponding to maximum stress depended on the used bonding agents; MAT4 had highest strains preserved the value of the strain. MAPO and HX-752 had poorest performance.
for curing bonding agents are 10 to 20 seconds . It has been shown that improvements in me-chanical properties of the bonded layer  can increase bond strength  and lead to nanoleakage reduction through increasing degree of polymerization [13-15]. On the other hand, by increasing curing time, elastic modulus and stress
HX-752 is unique among the commonly-used bonding agents in that it does not release Ammonia during propellant processing and does not cause the propellant to undergo a 'dry mix' phase. Premixing HX-752 with the HTPB is necessary due to a tendency of the bonding agent to homopolymerize in its neat state at room temperature.
Curative/Bonding Agent HX-752. Dynamar™ HX-752 has a marked tendency to supercool, and may remain in a glassy state for years at -18 °C. More typically, the material slowly crystallizes during storage, with nucleation occurring at several points in the container.
INTRALOK bonding agent is a high solids, water-based emulsion admixture suitable for modifying Portland cement compositions. It is also designed for use as a bonding agent between new and hardened concrete. It is a milky white, non-yellowing liquid ready for use and requires no onsite dilution.
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HX-752 Dynamar™ Bonding Agent for Ammonium Perchlorate. A bonding agent is a substance used to improve the mechanical properties of a composite system by increasing the adhesion between the filler particles and the rubbery matrix. Effective with Ammonium Perchlorate in butadiene binders. HX-752 releases virtually no ammonia and can be used with a short mix cycle.
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