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C. agent effect of CNC. directly on the nucleating agent the nucleatingFigure 7. POM images of (a) PHS, (b) PHS/CNC0.25, (c) PHS/CNC0.five, and (d) PHS/CNC1 at 45 . Figure 7. POM images of (a) PHS, (b) PHS/CNC0.25, (c) PHS/CNC0.five, and (d) PHS/CNC1 at 45 C.Polymers 2021, 13, x FOR PEER REVIEWFigure 8 depicts the WAXD profiles PHS and PHS/CNC composites following immediately after they Figure eight depicts the WAXD profiles ofof PHS and PHS/CNC composites they RP101988 In stock completed crystallization at 45 for 5 h. Three relatively strong diffraction peaks at 2 of 21.five completed crystallization at 45 C for five h. 3 relatively sturdy diffraction peaks at 2 24.4, and 30.3 corresponding to the (220), (040), and (240) planes of PHS, respectively, of 21.five , 24.4 , and 30.three , corresponding towards the (220), (040), and (240) planes of PHS, were observed for PHS and PHS/CNC composites [13]. For both PHS and its composites, respectively, had been observed for PHS and PHS/CNC composites [13]. For both PHS and they displayed the similar WAXD profiles, suggesting that CNC did not modify the crysits composites, they displayed the equivalent WAXD profiles, suggesting that CNC did not tal structure of PHS. Additionally, from Figure eight, the crystallinity values have been BMS-986094 medchemexpress estimated to modify the crystal structure of PHS. Additionally, from Figure eight, the crystallinity values be about 55 for PHS, PHS/CNC0.five, and PHS/CNC1, respectively. In the case of have been estimated to be about 55 for PHS, PHS/CNC0.five, and PHS/CNC1, respectively. In PHS/CNC0.25, the crystallinity was slightly enhanced to about 60 . In sum, CNC did not 9 60 . the case of PHS/CNC0.25, the crystallinity was slightly increased to aboutof 12 In sum, clearly affect the crystallinity of PHS, specifically at CNC content of 0.five wt and above. CNC did not definitely influence the crystallinity of PHS, specially at CNC content material of 0.5 wt and above.(220) PHS Intensity (a.u.) PHS/CNC0.25 PHS/CNC0.5 PHS/CNC1 (040) (240)25 two Figure eight. WAXD patterns of PHS and PHS/CNC composites. Figure eight. WAXD patterns of PHS and PHS/CNC composites.3.3. Tensile Mechanical Home Study The impact of CNC on the tensile mechanical home of PHS was further studied inPolymers 2021, 13,9 of3.three. Tensile Mechanical House Study The effect of CNC on the tensile mechanical home of PHS was further studied within this section. Parts a and b of Figure 9 illustrates the whole and initial stress-strain curves of PHS and PHS/CNC composites, respectively. As illustrated in Figure 9, CNC clearly influenced the tensile mechanical house of PHS. The detailed mechanical property data are summarized in Table 2. Using the boost in CNC content, the Young’s modulus (Et ) progressively increased from 360.two ten.6 MPa for PHS to 460.8 14.five MPa for PHS/CNC1, indicative from the reinforcing function of CNC. As also shown in Figure 9, the yielding behavior was identified for each PHS and PHS/CNC composites at low strains, i.e., yield strain (y ) of below ten ; furthermore, the yield strength (y ) obviously improved from 16.39 0.01 MPa for PHS to 18.35 0.51 MPa for PHS/CNC1, indicating once again the the reinforcing part of CNC. Accordingly, the elongation at break steadily decreased. CNC did not apparently impact the tensile strength at break of PHS. From Table 2, when CNC content was 0.five wt , the composite showed a Et of 430.9 11.8 MPa, a of 16.87 0.43 MPa, plus a of 398.2 32.four . Inside the literature, poly(-caprolactone) (PCL) showed a Et of 340 MPa, a of 20 MPa, and a of 300000 , even though poly(butylene adipate) (PBA) showed a Et.