International Polymer Processing最新文献_第7页

Design and manufacture of an additive manufacturing printer based on 3D melt electrospinning writing of polymer 基于聚合物三维熔融静电纺丝书写的增材制造打印机的设计与制造

IF 1.3 4区工程技术

International Polymer Processing Pub Date : 2023-05-10 DOI: 10.1515/ipp-2023-4352

B. Akhoundi, V. Modanloo, A. Mashayekhi

{"title":"Design and manufacture of an additive manufacturing printer based on 3D melt electrospinning writing of polymer","authors":"B. Akhoundi, V. Modanloo, A. Mashayekhi","doi":"10.1515/ipp-2023-4352","DOIUrl":"https://doi.org/10.1515/ipp-2023-4352","url":null,"abstract":"Abstract Objectives Electrospinning is one of the most well-known approaches to producing polymer nanofibers from a polymer solution by applying a potential difference (voltage) between the spinner and the collector, which is used in various industries such as medicine and military. This method has some significant restrictions, like low process efficiency due to the evaporation of the solvent, remaining solvent on the fibers, which are sometimes toxic, and inability to control the geometry of the produced fibers. On the other hand, preparing some solvents used in the electrospinning of polymer solutions is costly. Polymer melt electrospinning writing is a replacement for this type of electrospinning, which can be mentioned in terms of economy, efficiency, and production of solvent-free fibers. Therefore, in this research, a melt polymer electrospinning device was designed and manufactured according to existing extrusion-based additive manufacturing (AM) devices (3D printer). Methods Changes in an extrusion-based 3D printer to convert it into a writing electrospinning device experimentally. Results PLA and PCL fibers with diameters ranging from 8 to 84 μm were produced. The effect of process variables on the produced fibers’ diameter was investigated: Applied potential difference between the nozzle and the substrate: As its increases, the fiber diameter decreases. Increasing temperature: As its increases, the fiber diameter decreases. Distance between the nozzle and the substrate: As its increases, the fiber diameter increases. Flow rate: As its increases, the fiber diameter increases. Conclusions By presenting a 3D printer-electrospinning device, it is possible to control the fiber’s diameter and the 3D geometry in the 3D printing-electrospinning process.","PeriodicalId":14410,"journal":{"name":"International Polymer Processing","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2023-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42701715","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: 1

The effect of extensional viscosity on the core structure of fiber orientation for injection-molded fiber composites 拉伸粘度对注射成型纤维复合材料纤维取向核心结构的影响

IF 1.3 4区工程技术

International Polymer Processing Pub Date : 2023-05-09 DOI: 10.1515/ipp-2023-4368

H. Tseng

引用次数: 0

Modelling of roller conveyor for the simulation of rubber tire tread extrusion 对滚筒输送机进行建模，用于橡胶轮胎胎面挤压过程的仿真

IF 1.3 4区工程技术

International Polymer Processing Pub Date : 2023-05-09 DOI: 10.1515/ipp-2023-4356

B. Debbaut

引用次数: 0

Reactive compatibilization of polypropylene grafted with maleic anhydride and styrene, prepared by a mechanochemical method, for a blend system of biodegradable poly(propylene carbonate)/polypropylene spunbond nonwoven slice 机械化学法制备的马来酸酐和苯乙烯接枝聚丙烯对可生物降解的聚碳酸亚丙酯/聚丙烯纺粘非织造切片共混体系的反应增容

IF 1.3 4区工程技术

International Polymer Processing Pub Date : 2023-05-03 DOI: 10.1515/ipp-2023-4345

Zheng Tian, Yilu Zhang, N. Xu, Lisha Pan, Yuhong Feng

{"title":"Reactive compatibilization of polypropylene grafted with maleic anhydride and styrene, prepared by a mechanochemical method, for a blend system of biodegradable poly(propylene carbonate)/polypropylene spunbond nonwoven slice","authors":"Zheng Tian, Yilu Zhang, N. Xu, Lisha Pan, Yuhong Feng","doi":"10.1515/ipp-2023-4345","DOIUrl":"https://doi.org/10.1515/ipp-2023-4345","url":null,"abstract":"Abstract Poly(propylene carbonate) (PPC)/polypropylene (PP) spunbond nonwoven slice has gained more attention, owing to its excellent properties, such as biodegradability, flexibility, biocompatibility, and CO2 utilization. However, the applications of this green material are limited due to the poor thermodynamic incompatibility between PPC and PP. In this paper, PP grafted with maleic anhydride (MAH) and styrene (St) (PP-g-(MAH-co-St)), prepared by a mechanochemical method and having a grafting percentage GMAH = 1.40 %, was used as a compatibilizer to prepare a biodegradable PPC/compatibilizer/PP composite-spunbond nonwoven slice by melt-blending. The effects of compatibilizer content on the tensile strength, elongation at break, melt flow rate, thermal properties, and micro-morphology of PPC/PP-g-(MAH-co-St)/PP were systematically studied. Furthermore, the mechanism of compatibilization of PP-g-(MAH-co-St) in the PPC/PP spunbond nonwoven composite slice is discussed. The results indicated that this green PP-g-(MAH-co-St) exhibited a clear reactive compatibilization effect. Therefore, it can be considered as a good compatibilizer for the biodegradable PPC/PP spunbond nonwoven slice.","PeriodicalId":14410,"journal":{"name":"International Polymer Processing","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2023-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46292427","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

Numerical analysis of a new mound-shaped extensional mixing element designed based on a sine curve in single-screw extrusion 单螺杆挤压中基于正弦曲线设计的新型土墩型拉伸混合单元的数值分析

IF 1.3 4区工程技术

International Polymer Processing Pub Date : 2023-05-03 DOI: 10.1515/ipp-2022-4319

Hezhi He, Weijie Li, Zong‐ji Huang, Guidong Tian, Z. Zhu

{"title":"Numerical analysis of a new mound-shaped extensional mixing element designed based on a sine curve in single-screw extrusion","authors":"Hezhi He, Weijie Li, Zong‐ji Huang, Guidong Tian, Z. Zhu","doi":"10.1515/ipp-2022-4319","DOIUrl":"https://doi.org/10.1515/ipp-2022-4319","url":null,"abstract":"Abstract The rapid development of polymer blends and nanocomposites has put forward new requirements for the mixing performance of extruders. In comparison with shear flow field, extensional flow field has been shown to have unique advantages in improving dispersive mixing performance and reducing energy consumption. However, building an extensional flow field in a conventional single-screw extruder remains challenging. In this work, a new mound-shaped extensional mixing element (M-EME) was designed based on the geometric characteristics of a sine curve. To investigate the effect of this M-EME on the mixing properties of a conventional single-screw extruder, a numerical simulation analysis of this M-EME was performed. The results showed that the proportion of the region with a mixing index greater than 0.55 in the M-EME was higher than 43 %, and that the highest mixing index of the M-EME reached around 0.9, confirming the dominance of the extensional flow field in the M-EME. Moreover, it was observed that the changes in amplitude and period of the sine function have no significant effect on the distribution of the mixing index. The findings from this work provide a viable way to generate extensional flow fields in conventional screw extruders.","PeriodicalId":14410,"journal":{"name":"International Polymer Processing","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2023-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45519847","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

Numerical investigation of pressure drop within isothermal capillary rheometry for viscous and viscoelastic fluids 粘性和粘弹性流体等温毛细管流变法压降的数值研究

IF 1.3 4区工程技术

International Polymer Processing Pub Date : 2023-05-03 DOI: 10.1515/ipp-2022-4322

H. Tseng

引用次数: 0

Frontmatter 头版头条

4区工程技术

International Polymer Processing Pub Date : 2023-05-01 DOI: 10.1515/ipp-2023-frontmatter2

引用次数: 0

Experimental investigation on mechanical and tribological characteristics of snake grass/sisal fiber reinforced hybrid composites 蛇草/剑麻纤维增强混杂复合材料力学与摩擦学特性试验研究

IF 1.3 4区工程技术

International Polymer Processing Pub Date : 2023-04-18 DOI: 10.1515/ipp-2022-4301

S. Rajamanickam, Natarajan Ponnusamy, M. Mohanraj, Arockia Julias Arulraj

{"title":"Experimental investigation on mechanical and tribological characteristics of snake grass/sisal fiber reinforced hybrid composites","authors":"S. Rajamanickam, Natarajan Ponnusamy, M. Mohanraj, Arockia Julias Arulraj","doi":"10.1515/ipp-2022-4301","DOIUrl":"https://doi.org/10.1515/ipp-2022-4301","url":null,"abstract":"Abstract An experiential research on mechanical and tribological characteristics of snake grass and sisal fiber reinforced hybrid polymer (epoxy) composites was carried out and reported in this article. The snake grass and sisal fibers were initially treated with 5% sodium hydroxide (NaOH). Hybrid composite samples were fabricated using a compression moulding technique with a total fiber weight ratio of 30% and an epoxy resin weight ratio of 70%. The proportions of snake grass and sisal fibers in the hybrid composites were 70:30, 50:50, and 30:70. The fabricated hybrid composite samples were subjected to flexural, tensile, interlaminar shear strength, Shore D hardness, water absorption, and wear tests as per ASTM international standards, and the outcomes were compared with the results of snake grass and sisal mono fiber composites. The results disclosed that the 30:70 (SG:S) hybrid composite has higher mechanical characteristics than those of other hybrid and mono fiber composites. Also, the 30:70 hybrid sample performed at par with the sisal mono composite in wear and water absorption characteristics. Optical microscopy examination of alkali-treated natural hybrid and mono fiber composites displayed excellent results in terms of interfacial bonding between polymer and fiber.","PeriodicalId":14410,"journal":{"name":"International Polymer Processing","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2023-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41446587","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

Non-isothermal simulation of a corner vortex within entry flow for a viscoelastic fluid 粘弹性流体入口流内角涡的非等温模拟

IF 1.3 4区工程技术

International Polymer Processing Pub Date : 2023-04-18 DOI: 10.1515/ipp-2022-4312

H. Tseng

引用次数: 1

Time series data for process monitoring in injection molding: a quantitative study of the benefits of a high sampling rate 注塑过程监控的时间序列数据：高采样率效益的定量研究

IF 1.3 4区工程技术

International Polymer Processing Pub Date : 2023-04-14 DOI: 10.1515/ipp-2022-4258

Lucas Bogedale, Alexander Schrodt, H. Heim

{"title":"Time series data for process monitoring in injection molding: a quantitative study of the benefits of a high sampling rate","authors":"Lucas Bogedale, Alexander Schrodt, H. Heim","doi":"10.1515/ipp-2022-4258","DOIUrl":"https://doi.org/10.1515/ipp-2022-4258","url":null,"abstract":"Abstract Process monitoring systems are playing an increasingly important role in reducing production capacity losses in injection molding. Process monitoring and optimization systems are mostly based on processing data of injection molding machine control systems. These data consist of scalar data and time series. This paper introduces a novel approach to modelling injection molding processes using only time series data and evaluates the quantitative influences of varying sampling times on calculation of integral values and model quality. On the basis of the first experiment, it is shown that the sampling rates of these time series have a large influence on information which can be derived from this data (e.g. injection work). These findings provide an assessment of whether the effort is justified for the respective requirements on the accuracy of the injection work and other parameters derived from the time series. In the second experiment, a model is presented which uses only the injection flow and injection pressure profile as input and achieves high coefficients of determination for the prediction of the part weight, despite the absence of mold sensor data and scalar data. It is shown that higher sampling rates of time series results in higher prediction quality of these models. This improves the understanding of the data needed for high quality machine learning models of injection molding processes and enable users to estimate a lower bound for the sample rates of time series for their use cases.","PeriodicalId":14410,"journal":{"name":"International Polymer Processing","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2023-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47238065","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