Effects of HTPB with Different Molecular Weight on Mechanical Properties of HTPB/TDI System

Chun Yan Chen; Li Long Gao; Xiao Feng Wang

doi:10.4028/www.scientific.net/AMR.811.19

Paper Titles

Preface and Organization Committees

Colour Properties of Plasma-Induced Ozone Fading of Cotton Fabric
p.3

Heat Treatments Effect on the Mechanical Properties of Industrial Drawn Copper Wires
p.9

Thermal Effects on Charge Transport in Conjugated Polymers
p.14

Effects of HTPB with Different Molecular Weight on Mechanical Properties of HTPB/TDI System
p.19

Study the Micromechanical Behavior of PLA Film
p.23

Preparation of Hierarchical Porous Methylsilicone Monoliths with Monodisperse Polystyrene Microspheres as Template
p.28

Effective Elastic Moduli of Fiber-Reinforced Polymer Matrix Composites Filled with Nanoparticle
p.32

Electrochemical Corrosion Behavior for Friction Stir Welded Al-1.1Mg-0.98Si Alloy with Annealing Time
p.39

HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 811Effects of HTPB with Different Molecular Weight on...

Effects of HTPB with Different Molecular Weight on Mechanical Properties of HTPB/TDI System

Abstract:

t is found that the molecular weight of Hydroxy-terminated polybutadiene (HTPB) influences curing behaviors of HTPB/2,4-toluene diisocyanate (TDI) system and the mechanical properties of PBXs. Effects of the molecular weight of HTPB on the viscose viscosity,the cure time, and mechanical properties of polymer were studied by brookfield viscometer, hardness tester and tension test with the molecular weight of HTPB varying from 1500~4000.The experimental results show that the viscose viscosity increases slowly and the cure time is extended obviously,tensile strength decreases and elongation at break increases when the molecular weight of HTPB increases. Dynamic mechanical studies show that glass transition temperature and dynamic storage modulus decrease with the molecular weight of HTPB increasing.