Simple testing approaches for evaluating mechanical properties of nonwoven composites

Document Type

Conference Proceeding

Publication Date

12-1-2007

Abstract

In terms of mechanical characteristics, nonwoven composites can neither be described as a completely linear elastica with large stress and small strain, nor be treated as a highly nonlinear flexible material like textile fabric with small stress and large strain. Research on mechanical properties of nonwoven composites is needed. This paper discusses a set of testing methods for evaluating basic mechanical properties of nonwoven composites related to extension, shear, and compression. With availability of these testing methods plus an assumption that nonwoven composites are considered as two-dimensional continuous and homogeneous sheeting materials with in-plane isotropy and symmetry, complex deformations of nonwoven composites in two dimensions and three dimensions can be simplified and studied. Some testing results from biobased nonwoven composites, woven and knitted fabric composites, and pure polymer composites are exhibited and illustrated. Because the testing methods are all based on a desktop tensile tester only, they can be afforded and executed by small laboratories.

Publication Source (Journal or Book title)

International Nonwovens Technical Conference, INTC 2007: Joint INDA-TAPPI Conference

First Page

444

Last Page

449

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