International Polymer Processing最新文献_第3页

Effect of speed sinusoidal pulsating enhancement on the mixing property of plastic machinery 速度正弦脉动增强对塑料机械混合性能的影响

IF 1.3 4区工程技术

International Polymer Processing Pub Date : 2024-01-24 DOI: 10.1515/ipp-2023-4459

Tianlei Liu, Tianwen Dong, Bangxiong Liu

{"title":"Effect of speed sinusoidal pulsating enhancement on the mixing property of plastic machinery","authors":"Tianlei Liu, Tianwen Dong, Bangxiong Liu","doi":"10.1515/ipp-2023-4459","DOIUrl":"https://doi.org/10.1515/ipp-2023-4459","url":null,"abstract":"\u0000 Numerous vibration-assisted methods have been adapted to solve the problems in the processing and forming for polymetric products, but the introduction of vibration field is typically loaded on small extruders or injectors in school laboratories and industrial research rooms which profoundly limit the application of vibration technology. The purpose of this study is to put forward a simple vibration excitation method for all scale extruders or injection molding machines. To recover the mixing performance of that excitation method, a numerical investigation was carried out using the CFD software ANSYS POLYFLOW 19.2, and the analysis and comparison were made between the mixing performance of a simplified screw element with and without a speed sinusoidal pulsating field. The results showed that not all dynamic states with the superimposed excitation field have better mixing performance than the steady state without any pulsating field. Nevertheless, the introduction of speed pulsating field under certain parameter setting can indeed enhance the stretching rate, reduce the separation scale, increase the mixing efficiency, and lower the screw force. These findings are of great importance and provide valuable references for the development and application of vibration-assisted molding technology in the plastic machinery.","PeriodicalId":14410,"journal":{"name":"International Polymer Processing","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2024-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139600300","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Investigation of mechanical and tribological performance of wood dust reinforced epoxy composite under dry, wet and heated contact condition 木屑增强环氧树脂复合材料在干燥、潮湿和加热接触条件下的机械和摩擦学性能研究

IF 1.3 4区工程技术

International Polymer Processing Pub Date : 2024-01-12 DOI: 10.1515/ipp-2023-4410

R. Paul, S. Bhowmik

{"title":"Investigation of mechanical and tribological performance of wood dust reinforced epoxy composite under dry, wet and heated contact condition","authors":"R. Paul, S. Bhowmik","doi":"10.1515/ipp-2023-4410","DOIUrl":"https://doi.org/10.1515/ipp-2023-4410","url":null,"abstract":"Abstract Natural fibers have received a lot of attention from academia as well as industry in the context of sustainable materials. Since they are more environmentally friendly than traditional synthetic materials, their physico-mechanical and frictional properties such as porosity, moisture absorption, high strength, modulus, toughness, and wear resistivity make them appropriate for a variety of industrialized applications where issues involving a significant quantity of dumping must be taken into account. The paper introduces an attempt to use epoxy-based composites reinforced with wood dust for various applications. The composites are prepared with various wood filler stacks (0, 2.5, 5, 7.5, 10, and 12.5 wt%) embedded with epoxy resin and subjected to tensile and flexural testing. The highest ultimate tensile strength achieved at 7.5 wt% wood dust support is 22 MPa, whereas the highest flexural modulus is 0.48 GPa at 12.5 wt% composites. The composite’s wear properties is examined under dry, wet, and heated contact conditions using a pin-on-disk (POD) machine. In dry condition, coefficient of friction (COF) varies from 0.10 to 0.38 whereas, in wet condition, the value of COF decreased by 70–83 %. In heated state, the COF is increased by up to 15 % when varying the temperature from 40 °C to 80 °C. The composite exhibits better wear behavior in the lower filler support than in the higher filler support due to the sturdy connection between the matrix and filler. On the other hand, the wet state’s tribological performance is superior to the dry and heated states. During surface morphology analysis, it is found that various voids, crack formation, wear debris, and thin transfer layer formation take place on the composite.","PeriodicalId":14410,"journal":{"name":"International Polymer Processing","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2024-01-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139437607","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Preparation of PVDF/PVA composite films with micropatterned structures on light-cured 3D printed molds for hydrophilic modification of PVDF 在光固化 3D 打印模具上制备具有微图案结构的 PVDF/PVA 复合薄膜，用于对 PVDF 进行亲水改性

IF 1.3 4区工程技术

International Polymer Processing Pub Date : 2024-01-10 DOI: 10.1515/ipp-2023-4464

Shengkai Li, Zhengyang Jin, Yutong Chen, Changpeng Shan, Yan Xu

{"title":"Preparation of PVDF/PVA composite films with micropatterned structures on light-cured 3D printed molds for hydrophilic modification of PVDF","authors":"Shengkai Li, Zhengyang Jin, Yutong Chen, Changpeng Shan, Yan Xu","doi":"10.1515/ipp-2023-4464","DOIUrl":"https://doi.org/10.1515/ipp-2023-4464","url":null,"abstract":"Abstract Polyvinylidene fluoride (PVDF) is widely used in biotechnology due to its excellent biocompatibility, high temperature and pressure resistance, and outstanding mechanical properties. However, the hydrophobic nature of PVDF surface hinders the attachment of biological proteins. In order to enhance the wettability of PVDF surfaces, this study prepared composite films by blending PVDF with polyvinyl alcohol (PVA), and micro-patterned structures were fabricated on the material surface using a mold-replication method based on digital light processing (DLP) photopolymerization printing technology. A series of characterization techniques including surface morphology analysis, chemical composition analysis, and wettability testing were employed. The surface morphology analysis results indicated that the method of using DLP photopolymerization technology to print mold replicas and create micro-patterned structures was indeed effective in creating micro-patterned structures on both PVDF and PVDF/PVA composite films. The chemical composition analysis showed that the spin-coating of PVDF powder material resulted in PVDF β-phase crystalline structure, which has a positive effect on cell growth. Furthermore, the introduction of hydrophilic groups was achieved by mixing PVDF with PVA. Wetting test results indicate that the incorporation of the hydrophilic material PVA and micro-patterned surfaces both contribute to the improved hydrophilicity of the material. The water contact angle of the micro-patterned PVDF/PVA composite film reached 30.8°, exhibiting excellent hydrophilic properties. This study achieved the optimization of PVDF surface properties through micro-patterned surface modification and material composition design, providing novel insights for the further development of PVDF materials in the field of biotechnology.","PeriodicalId":14410,"journal":{"name":"International Polymer Processing","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2024-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139440439","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Predicting part quality early during an injection molding cycle 在注塑成型周期早期预测零件质量

IF 1.3 4区工程技术

International Polymer Processing Pub Date : 2024-01-10 DOI: 10.1515/ipp-2023-4457

Lucas Bogedale, Stephan Doerfel, Alexander Schrodt, Hans-Peter Heim

{"title":"Predicting part quality early during an injection molding cycle","authors":"Lucas Bogedale, Stephan Doerfel, Alexander Schrodt, Hans-Peter Heim","doi":"10.1515/ipp-2023-4457","DOIUrl":"https://doi.org/10.1515/ipp-2023-4457","url":null,"abstract":"Abstract Data-based process monitoring in injection molding plays an important role in compensating disturbances in the process and the associated impairment of part quality. Selecting appropriate features for a successful online quality prediction based on machine learning methods is crucial. Time series such as the injection pressure and injection flow curve are particularly suitable for this purpose. Predicting quality as early as possible during a cycle has many advantages. In this paper it is shown how the recording length of the time series affects the prediction performance when using machine learning algorithms. For this purpose, two successful molding quality prediction algorithms (k Nearest Neighbors and Ridge Regression) are trained with time series of different lengths on extensive data sets. Their prediction performances for part weight and a geometric dimension are evaluated. The evaluations show that recording time series until the end of a cycle is not necessary to obtain good prediction results. These findings indicate that early reliable quality prediction is possible within a cycle, which speeds up prediction, allows timely part handling at the end of the cycle and provides the basis for automated corrective interventions within the same cycle.","PeriodicalId":14410,"journal":{"name":"International Polymer Processing","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2024-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139441275","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Optimizing laser-based micro-cutting for PMMA microfluidic device fabrication: thermal analysis and parameter optimization 优化用于 PMMA 微流体设备制造的激光微切割：热分析和参数优化

IF 1.3 4区工程技术

International Polymer Processing Pub Date : 2024-01-09 DOI: 10.1515/ipp-2023-4408

M. N. Bagum, Md. Ahsan Habib, C. A. A. Rashed, M.H. Kibria, Syeda Kumrun Nahar

{"title":"Optimizing laser-based micro-cutting for PMMA microfluidic device fabrication: thermal analysis and parameter optimization","authors":"M. N. Bagum, Md. Ahsan Habib, C. A. A. Rashed, M.H. Kibria, Syeda Kumrun Nahar","doi":"10.1515/ipp-2023-4408","DOIUrl":"https://doi.org/10.1515/ipp-2023-4408","url":null,"abstract":"Abstract Laser processes have gained popularity in microfluidic device fabrication. This study aims to determine the optimal parameters for laser-based micro-cutting to achieve the desired width, depth, profile, and material removal, considering the thermal properties of PMMA. A CNC CO2 laser was used, and 29 trials tested various speed and power combinations. Two theoretical models based on trial results focused on depth and width. COMSOL Multiphysics FEA software estimated surface temperature. Theoretical depth estimation matched experimental data more accurately when the P/S ratio was below 0.15 and the scanning speed was set at 500 mm/s or 750 mm/s. At 500 mm/s, width estimation was most accurate, up to 30 W. At 750 mm/s, experimental width exceeded predictions. Material removal increased proportionally with increasing P/S ratio, but beyond a threshold of 0.15, material removal remained nearly constant despite rising heat input. Laser-cut track shape varied, resembling a ‘U’ at lower and a ‘V’ at higher ratios. The groove shape transitioned from ‘U’ to ‘V’ when the temperature surpassed 1200 K. A V-shaped groove required a temperature exceeding 1500 K. Optimization confirmed a microchannel depth of 0.197 mm, width of 0.256 mm, and ‘U–V’ channel shape achievable at 30 W and 200 mm/s scanning speed, with a surface temperature of 1325 K.","PeriodicalId":14410,"journal":{"name":"International Polymer Processing","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2024-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139379906","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Experimental investigation on mechanical and tribological analysis of pineapple leaf (Ananas comosus) and sisal (Agave sisalana) fibers reinforced hybrid epoxy composites 菠萝叶（Ananas comosus）和剑麻（Agave sisalana）纤维增强混合环氧树脂复合材料的力学和摩擦学分析实验研究

IF 1.3 4区工程技术

International Polymer Processing Pub Date : 2024-01-08 DOI: 10.1515/ipp-2023-4433

Ponnusamy Natarajan, M. Mohanraj, Murugesan Kumar, Selvaraj Sathish

{"title":"Experimental investigation on mechanical and tribological analysis of pineapple leaf (Ananas comosus) and sisal (Agave sisalana) fibers reinforced hybrid epoxy composites","authors":"Ponnusamy Natarajan, M. Mohanraj, Murugesan Kumar, Selvaraj Sathish","doi":"10.1515/ipp-2023-4433","DOIUrl":"https://doi.org/10.1515/ipp-2023-4433","url":null,"abstract":"Abstract In many industrial applications, natural-fiber-reinforced polymer (NFRP) composites are emerging as a strong substitute for composites based on synthetic fibers. The goal of this study was to examine the mechanical and tribological characteristics, including tensile, flexural, impact, wear, hardness, and water absorption, of hybrid epoxy composites reinforced with pineapple leaf and sisal fibers at various weight fractions. First, 5 % sodium hydroxide was used to treat the pineapple leaf and sisal fibers. With a composition of 0, 10, 15, 20, and 30 wt% of pineapple leaf and sisal fibers to the epoxy resin and its hardener mixture, which had a constant weight ratio of 70 %, hybrid composites were fabricated using the compression moulding process. To create a hybrid epoxy composite reinforced with pineapple and sisal fiber, epoxy resin was used as the binder. Different types of testing were performed on the hybrid composites following ASTM standards. The outcomes were contrasted with composites made from mono-pineapple and sisal fiber composites. In comparison to other composite samples, the 15:15 composite sample exhibited the best mechanical and tribological qualities, including the highest tensile strength, impact resistance, flexural strength, hardness, water absorption resistance, and wear resistance. Using a scanning electron microscope (SEM), the fiber/matrix adhesion was investigated. The 15:15 composite sample exhibits primarily mechanical and tribological properties, making the resultant composite material simpler to use in structural and automotive applications.","PeriodicalId":14410,"journal":{"name":"International Polymer Processing","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2024-01-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139379975","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Investigation of the effects of water uptake on the mechanical properties of wood dust particle filled Prosopis Juliflora reinforced phenol formaldehyde hybrid polymer composites 研究吸水率对木屑颗粒填充酚醛混合聚合物复合材料机械性能的影响

IF 1.3 4区工程技术

International Polymer Processing Pub Date : 2023-12-25 DOI: 10.1515/ipp-2023-4407

Ganesan Brindha, Sujin Jose Arul, A. H. Lenin, Jani Stanly Kochappa Premila

{"title":"Investigation of the effects of water uptake on the mechanical properties of wood dust particle filled Prosopis Juliflora reinforced phenol formaldehyde hybrid polymer composites","authors":"Ganesan Brindha, Sujin Jose Arul, A. H. Lenin, Jani Stanly Kochappa Premila","doi":"10.1515/ipp-2023-4407","DOIUrl":"https://doi.org/10.1515/ipp-2023-4407","url":null,"abstract":"Abstract The water uptake behavior of Wood Dust (WD)/Prosopis Juliflora Fiber (PJF)/Phenol-Formaldehyde (PF) hybrid composites which are immersed in distilled and seawater environments was evaluated. Three different composite samples were fabricated by reinforcing WD and PJF with PF resin. The fabricated specimens were immersed in sea and distilled water to note down the moisture content absorption of the specimens for different time intervals from 0 to 240 h. The dry and wet specimens underwent mechanical properties testing as per ASTM standards and the findings for wet and dry specimens have been compared and analyzed. It is observed that the specimens which are immersed in sea (salt) water absorb more moisture content than the specimen immersed in distilled water and the PJF-rich (30 wt% of PJF & 10 wt % of WD) specimen absorbs more water than the other specimens. The water uptake behavior of the WD/PJF/PF hybrid composite follows a non-Fickian behavior. The mechanical performance (tensile, flexural, and impact) of the 10 wt % of WD 30 wt % of PJF specimen was better than that of other specimens at dry (before immersion) conditions and lost strength when immersed in sea and distilled water. SEM analysis was also done on the broken surface of the tested specimens which were exposed to the water environment.","PeriodicalId":14410,"journal":{"name":"International Polymer Processing","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2023-12-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138943546","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Multi-layer co-extrusion blow molding 多层共挤吹塑成型

IF 1.3 4区工程技术

International Polymer Processing Pub Date : 2023-12-22 DOI: 10.1515/ipp-2023-4413

Erik Steinmetz, Seamus Scanlon, Tyler Schneider, João Maia

引用次数: 0

Fabrication of electrospun nanofiber from a blend of PVC and PHB 用聚氯乙烯和 PHB 混合物制造电纺纳米纤维

IF 1.3 4区工程技术

International Polymer Processing Pub Date : 2023-12-01 DOI: 10.1515/ipp-2023-4443

Pham Le Quoc, Dmitriy V. Anuchin, R. Olekhnovich, Vera E. Sitnikova, M. Uspenskaya, Arina V. Kremleva, Nguyen Hong Thanh

{"title":"Fabrication of electrospun nanofiber from a blend of PVC and PHB","authors":"Pham Le Quoc, Dmitriy V. Anuchin, R. Olekhnovich, Vera E. Sitnikova, M. Uspenskaya, Arina V. Kremleva, Nguyen Hong Thanh","doi":"10.1515/ipp-2023-4443","DOIUrl":"https://doi.org/10.1515/ipp-2023-4443","url":null,"abstract":"Abstract In this work, the fabrication process of electrospun nanofibers from a blend of polyhydroxy butyrate (PHB) and polyvinyl chloride (PVC) has been investigated. PVC/PHB nanofibers have been fabricated from solutions using different PVC and PHB ratios. The influence of technical parameters of the electrospinning process on the fabrication, morphology, and diameter of nanofibers has been evaluated. The chemical structure and thermal properties of PVC/PHB have been studied. The results show that the diameter of PVC/PHB nanofibers increases as the PHB content increases. In addition, the optimal technical parameters of the electrospinning process for each PVC and PHB ratio are different. Infrared spectroscopy analysis revealed an enhancement of the crystalline phase of the polymer composite with increasing PHB content. The thermal properties of PVC/PHB nanofibers were evaluated through differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA). The change in PHB ratios leads to a change in the glass transition temperature of PVC/PHB nanofibers. The thermal degradation process of PVC/PHB includes two steps. Increasing the PHB content leads to an enhancement in the mechanical strength of PVC/PHB nanofiber mats; however, it also results in a reduction in tensile elongation. Based on the results of structural, morphological, interaction analysis, and mechanical properties of PVC/PHB nanofibers, this study contributes to the optimization of the fabrication of nanofibers from PVC and PHB. PVC/PHB nanofibers have the potential to be used for air filtration applications.","PeriodicalId":14410,"journal":{"name":"International Polymer Processing","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138626991","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Structuring step dependent characteristics in joining using pin-like structures in the vibration welding process 在振动焊接工艺中使用针状结构连接时的结构步长相关特性

IF 1.3 4区工程技术

International Polymer Processing Pub Date : 2023-11-28 DOI: 10.1515/ipp-2023-4419

M. Wolf, D. Drummer

引用次数: 0