Improving mechanical properties of injectable polymers and composites

Key words injectable polymers, composites, mechanical properties, biomaterials. 

This chapter will focus on the relationship between structure and mechanical properties of injectable materials and their crosslinked networks. To better 

Compared to tensile testing, force is applied to the sample in an opposite direction in compressive testing (Temenoff and Mikos, 2008). Moreover, the 

J Mechanical testing parameters (a) A representative strain-stress curve in tensile testing. Yield stress (o-yg) and yield point strain (eyp) can be obtained by recording values at the point where the curve transitions from a linear relationship between stress and strain (elastic deformation) to a non-linear relationship (plastic deformation). Ultimate tensile strength (fr ,s) is the maximum stress in the curve, and the corresponding strain is called uniform strain (cp). The strain at fracture (eO can also be obtained from the curve, (b) When the transition point between elastic and plastic deformation is difficult to identify, a 0.2% strain offset line parallel to the elastic portion is drawn to obtain the 7ys or 0.2% offset o-ys. (c) Schematic of the deformation that occurs when shear force is applied to a viscoelastic polymer. 

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