Optimisation of Shrinkage and Strength on Thick Plate Part Using Recycled LDPE Materials

Materials

卷:14

MohdMustafa Al Bakri Abdullah¹  JoelOliveira Correia Vasco²  Katarzyna Błoch³  Paweł Pietrusiewicz³  Marcin Nabiałek³  MohdFathullah Ghazali⁴  ShayfullZamree Abd Rahim⁴  Norshahira Roslan⁴  MohdNasir Mat Saad⁴  Dariusz Kwiatkowski⁵  Janusz Szmidla⁵  AbdellahEl-hadj Abdellah⁶ 

[1] Center of Excellence Geopolymer and Green Technology (CEGeoGTech), Universiti Malaysia Perlis, Perlis 01000, Malaysia;

[2] Department of Mechanical Engineering, School of Technology and Management (ESTG), Polytechnic of Leiria, 2411-901 Leiria, Portugal;

[3] Department of Physics, Faculty of Processing Engineering and Materials Technology, Częstochowa University of Technology, 42-200 Częstochowa, Poland;

[4] Faculty of Mechanical Engineering Technology, Pauh Putra Main Campus, Universiti Malaysia Perlis, Perlis 02600, Malaysia;

[5] Faculty of Mechanical Engineering and Computer Science, Częstochowa University of Technology, 42-200 Częstochowa, Poland;

[6] Laboratory of Mechanics, Physics and Mathematical Modelling (LMP2M), University of Medea, Medea 26000, Algeria;

关键词: response surface methodology;    particle swarm optimisation;    recycled low-density polyethylene (LDPE);    shrinkage;    strength;   

DOI  :  10.3390/ma14071795

来源: DOAJ

【 摘 要 】

Achieving good quality of products from plastic injection moulding processes is very challenging, since the process comprises many affecting parameters. Common defects such as warpage are hard to avoid, and the defective parts will eventually go to waste, leading to unnecessary costs to the manufacturer. The use of recycled material from postindustrial waste has been studied by a few researchers. However, the application of an optimisation method by which to optimise processing parameters to mould parts using recycled materials remains lacking. In this study, Response Surface Methodology (RSM) and Particle Swarm Optimisation (PSO) methods were conducted on thick plate parts moulded using virgin and recycled low-density polyethylene (LDPE) materials (100:0, 70:30, 60:40 and 50:50; virgin to recycle material ratios) to find the optimal input parameters for each of the material ratios. Shrinkage in the x and y directions increased in correlation with the recycled ratio, compared to virgin material. Meanwhile, the tensile strength of the thick plate part continued to decrease when the recycled ratio increased. R30 (70:30) had the optimum shrinkage in the x direction with respect to R0 (100:0) material where the shrinkage increased by 24.49% (RSM) and 33.20% (PSO). On the other hand, the shrinkage in the y direction for R30 material increased by 4.48% (RSM) and decreased by 2.67% (PSO), while the tensile strength of R30 (70:30) material decreased by 0.51% (RSM) and 2.68% (PSO) as compared to R0 (100:0) material. Validation tests indicated that the optimal setting of processing parameter suggested by PSO and RSM for R0 (100:0), R30 (70:30), R40 (60:40) and R50 (50:50) was less than 10%.

【 授权许可】

Unknown