{"title":"Mechanical and thermal investigation of high-density polyethylene/multi-walled carbon nanotube/tungsten disulfide hybrid composites","authors":"Sampath Kumar Sudarsanam, K. Panneerselvam","doi":"10.1007/s13726-024-01305-w","DOIUrl":null,"url":null,"abstract":"<div><p>This study investigates the impact of addition of different weight percentages of tungsten disulphide (WS<sub>2</sub>) lubricant on the thermal and mechanical properties of high density polyethylene (HDPE) hybrid composites reinforced with a multi-walled carbon nanotube (MWCNT). HDPE composites were fabricated using a twin-screw extruder process employed to add reinforcement and lubricants in different weight percentages (%, by weight). X-ray diffraction (XRD) patterns indicated the distribution and dispersion of filler materials in the HDPE matrix. The quality of the composite was investigated by measuring the mechanical properties such as impact strength, hardness, tensile strength, and flexural strength. Thermogravimetric analysis (TGA) was employed to examine the thermal stability of the composite material. Main decomposition temperatures were determined using derivative thermogravimetry (DTG) analysis. Thermal transitions and degree of crystallisation (<i>X</i><sub>c</sub>) of the polymeric materials used were investigated by using differential scanning calorimetry (DSC) technique. The lubricant was added in three varying amounts of 2%, 4% and 8% (by weight) whilst MWCNT was maintained at 1% (by weight). The experimental results revealed that the composite with 2% (by weight) of WS<sub>2</sub> provides better mechanical properties such as impact strength, flexural strength, tensile strength, and hardness. With an increase in lubricant percentage, agglomeration of particles is found to be dominant in the composite, and the composite with 4% (by weight) of WS<sub>2</sub> displays better thermal properties, as determined using TGA, DTG and DSC analytical techniques.</p><h3>Graphical abstract</h3>\n<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":601,"journal":{"name":"Iranian Polymer Journal","volume":null,"pages":null},"PeriodicalIF":2.4000,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Iranian Polymer Journal","FirstCategoryId":"92","ListUrlMain":"https://link.springer.com/article/10.1007/s13726-024-01305-w","RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"POLYMER SCIENCE","Score":null,"Total":0}
引用次数: 0
Abstract
This study investigates the impact of addition of different weight percentages of tungsten disulphide (WS2) lubricant on the thermal and mechanical properties of high density polyethylene (HDPE) hybrid composites reinforced with a multi-walled carbon nanotube (MWCNT). HDPE composites were fabricated using a twin-screw extruder process employed to add reinforcement and lubricants in different weight percentages (%, by weight). X-ray diffraction (XRD) patterns indicated the distribution and dispersion of filler materials in the HDPE matrix. The quality of the composite was investigated by measuring the mechanical properties such as impact strength, hardness, tensile strength, and flexural strength. Thermogravimetric analysis (TGA) was employed to examine the thermal stability of the composite material. Main decomposition temperatures were determined using derivative thermogravimetry (DTG) analysis. Thermal transitions and degree of crystallisation (Xc) of the polymeric materials used were investigated by using differential scanning calorimetry (DSC) technique. The lubricant was added in three varying amounts of 2%, 4% and 8% (by weight) whilst MWCNT was maintained at 1% (by weight). The experimental results revealed that the composite with 2% (by weight) of WS2 provides better mechanical properties such as impact strength, flexural strength, tensile strength, and hardness. With an increase in lubricant percentage, agglomeration of particles is found to be dominant in the composite, and the composite with 4% (by weight) of WS2 displays better thermal properties, as determined using TGA, DTG and DSC analytical techniques.
期刊介绍:
Iranian Polymer Journal, a monthly peer-reviewed international journal, provides a continuous forum for the dissemination of the original research and latest advances made in science and technology of polymers, covering diverse areas of polymer synthesis, characterization, polymer physics, rubber, plastics and composites, processing and engineering, biopolymers, drug delivery systems and natural polymers to meet specific applications. Also contributions from nano-related fields are regarded especially important for its versatility in modern scientific development.