Tensile strength
In term of tensile strength, it is normal that the tensile strength of the polymer was drop by the
incorporation of soft materials. For this particular case, tensile strength of materials, shown in Fig. 6 (b).
was also dropped with the content of the soft phase rubber. In most semicrystalline polymer, crystallinity
contained in bulk should give rise to high tensile strength. The crystallinity of PLA in PLA/ENR blend
was suppressed and this resulted in lower tensile strength than the previous system.