PMID- 37242896 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20230529 IS - 2073-4360 (Electronic) IS - 2073-4360 (Linking) VI - 15 IP - 10 DP - 2023 May 16 TI - Influences of TPU Content on the Weld Line Characteristics of PP and ABS Blends. LID - 10.3390/polym15102321 [doi] LID - 2321 AB - This study aims to explore the effects of Thermoplastic Polyurethane (TPU) content on the weld line properties of Polypropylene (PP) and Acrylonitrile Butadiene Styrene (ABS) blends. In PP/TPU blends, increasing the TPU content results in a significant decrease in the PP/TPU composite's ultimate tensile strength (UTS) and elongation values. Blends with 10 wt%, 15 wt%, and 20 wt% TPU and pure PP outperform blends with 10 wt%, 15 wt%, and 20 wt% TPU and recycled PP in terms of UTS value. The blend with 10 wt% TPU and pure PP achieves the highest UTS value of 21.85 MPa. However, the blend's elongation decreases due to the poor bonding in the weld line area. According to Taguchi's analysis, the TPU factor has a more significant overall influence on the mechanical properties of PP/TPU blends than the recycled PP factor. Scanning electron microscope (SEM) results show that the TPU area has a dimple shape on the fracture surface due to its significantly higher elongation value. The 15 wt% TPU sample achieves the highest UTS value of 35.7 MPa in ABS/TPU blends, which is considerably higher than other cases, indicating good compatibility between ABS and TPU. The sample containing 20 wt% TPU has the lowest UTS value of 21.2 MPa. Furthermore, the elongation-changing pattern corresponds to the UTS value. Interestingly, SEM results present that the fracture surface of this blend is flatter than the PP/TPU blend due to a higher compatibility rate. The 30 wt% TPU sample has a higher rate of dimple area than the 10 wt% TPU sample. Moreover, ABS/TPU blends gain a higher UTS value than PP/TPU blends. Increasing the TPU ratio mainly reduces the elastic modulus of both ABS/TPU blends and PP/TPU blends. This study reveals the advantages and disadvantages of mixing TPU with PP or ABS to ensure that it meets the requirements of the intended applications. FAU - Do, Thanh Trung AU - Do TT AUID- ORCID: 0000-0002-9759-9229 AD - Ho Chi Minh City University of Technology and Education, Ho Chi Minh City 71307, Vietnam. FAU - Nguyen, Van-Thuc AU - Nguyen VT AD - Ho Chi Minh City University of Technology and Education, Ho Chi Minh City 71307, Vietnam. FAU - Song Toan, Huynh Do AU - Song Toan HD AD - Ho Chi Minh City University of Technology and Education, Ho Chi Minh City 71307, Vietnam. FAU - Minh, Pham Son AU - Minh PS AUID- ORCID: 0000-0002-8236-2202 AD - Ho Chi Minh City University of Technology and Education, Ho Chi Minh City 71307, Vietnam. FAU - Uyen, Tran Minh The AU - Uyen TMT AD - Ho Chi Minh City University of Technology and Education, Ho Chi Minh City 71307, Vietnam. FAU - Huynh, Trung H AU - Huynh TH AD - Ho Chi Minh City University of Technology and Education, Ho Chi Minh City 71307, Vietnam. FAU - Nguyen, Vinh Tien AU - Nguyen VT AD - Ho Chi Minh City University of Technology and Education, Ho Chi Minh City 71307, Vietnam. FAU - Nguyen, Van Thanh Tien AU - Nguyen VTT AD - Department of Industrial Engineering and Management, National Kaohsiung University of Science and Technology, Kaohsiung 80778, Taiwan. AD - Faculty of Mechanical Engineering, Industrial University of Ho Chi Minh City, Nguyen Van Bao Street, Ward 4, Go Vap District, Ho Chi Minh City 70000, Vietnam. LA - eng PT - Journal Article DEP - 20230516 PL - Switzerland TA - Polymers (Basel) JT - Polymers JID - 101545357 PMC - PMC10224404 OTO - NOTNLM OT - Taguchi method OT - compatible OT - fracture surface OT - injection molding OT - tensile test COIS- The authors declare no conflict of interest. EDAT- 2023/05/27 09:42 MHDA- 2023/05/27 09:43 PMCR- 2023/05/16 CRDT- 2023/05/27 01:31 PHST- 2023/03/25 00:00 [received] PHST- 2023/05/12 00:00 [revised] PHST- 2023/05/13 00:00 [accepted] PHST- 2023/05/27 09:43 [medline] PHST- 2023/05/27 09:42 [pubmed] PHST- 2023/05/27 01:31 [entrez] PHST- 2023/05/16 00:00 [pmc-release] AID - polym15102321 [pii] AID - polymers-15-02321 [pii] AID - 10.3390/polym15102321 [doi] PST - epublish SO - Polymers (Basel). 2023 May 16;15(10):2321. doi: 10.3390/polym15102321.