International Polymer Processing最新文献_第2页

Synthesis and characterization of ethylenediamine-modified F-44 phenolic epoxy fiber 乙二胺改性 F-44 酚醛环氧纤维的合成与表征

IF 1.3 4区工程技术

International Polymer Processing Pub Date : 2024-04-19 DOI: 10.1515/ipp-2023-4465

Juan Wu, Mingli Jiao, Hao Wang, Keke Li, Muen Yang, Pengyu Li, Kai Yang

{"title":"Synthesis and characterization of ethylenediamine-modified F-44 phenolic epoxy fiber","authors":"Juan Wu, Mingli Jiao, Hao Wang, Keke Li, Muen Yang, Pengyu Li, Kai Yang","doi":"10.1515/ipp-2023-4465","DOIUrl":"https://doi.org/10.1515/ipp-2023-4465","url":null,"abstract":"\u0000 F-44 phenolic epoxy fibers were produced through high-temperature dry spinning utilizing F-44 phenolic epoxy resin as the base material, combined with n-butanol and ethylenediamine (EDA) as the curing agent. The fibers were subsequently analyzed for their structural, thermal stability, microstructural, and mechanical properties using techniques such as Fourier transform infrared spectroscopy, micro-infrared imaging, thermogravimetric analysis, nuclear magnetic resonance, scanning electron microscopy, and fiber strength testing. The limitations of phenolic resins, including high brittleness, poor toughness, and low elongation at break, restrict their potential applications, necessitating modifications to broaden their utility. Research findings indicate that modifying EDA induces a ring-opening reaction of epoxy groups, thereby enhancing the resin’s structure and improving the thermal stability and mechanical properties of fibers. The thermal stability and mechanical strength of the fibers were optimized at an EDA concentration of 2.0 wt% and curing time of 30 min, resulting in a tensile strength of 105 MPa and an elongation at break of 27.6 %.","PeriodicalId":14410,"journal":{"name":"International Polymer Processing","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2024-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140684202","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

Polyurethane foam reinforced with Ag nanoparticle decorated ZnO nanorods: a dual-functional approach for improved antibacterial and mechanical properties 用银纳米粒子装饰的氧化锌纳米棒增强聚氨酯泡沫：一种改善抗菌和机械性能的双功能方法

IF 1.3 4区工程技术

International Polymer Processing Pub Date : 2024-04-19 DOI: 10.1515/ipp-2023-4453

Z. Farrokhi, M. Kanvisi, Ali Ayati

{"title":"Polyurethane foam reinforced with Ag nanoparticle decorated ZnO nanorods: a dual-functional approach for improved antibacterial and mechanical properties","authors":"Z. Farrokhi, M. Kanvisi, Ali Ayati","doi":"10.1515/ipp-2023-4453","DOIUrl":"https://doi.org/10.1515/ipp-2023-4453","url":null,"abstract":"\u0000 This study introduces a novel approach by incorporating pristine ZnO nanorods and Ag nanoparticles decorated ZnO nanorods into a polyurethane foam matrix. This synergistic combination aims to enhance the foam’s antibacterial properties while investigating its impact on mechanical strength. Nanoparticles and prepared nanopolymer were characterized by different methods like XRD, TEM, SEM, and EDS. The mechanical characteristics and antibacterial properties of prepared polyurethane composites were investigated in the presence of Escherichia coli and Bacillus subtilis. A much higher level than reported in the literature was found for PU films filled with ZnO nanorods. Incorporating nanoparticles into polyurethane nanocomposites has been demonstrated to significantly improve polyurethane’s antibacterial properties. The results revealed that ZnO/PU antibacterial efficiency decreased with increasing ZnO nanofiller content, while AgNPs@ZnO/PU composite antibacterial efficiency increased with increasing AgNPs@ZnO nanofiller content. Also, the weak coordinate bond between ZnO and Ag in the PU chain extender was demonstrated. Increasing the ZnO content to 1.4 wt% resulted in greater Young’s modulus and tensile strength, which increased when the ZnO content was increased further. Such a dual-functional enhancement holds promise for applications requiring both antimicrobial efficacy and mechanical integrity.","PeriodicalId":14410,"journal":{"name":"International Polymer Processing","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2024-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140685615","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

Influence of the injection velocity profile on the properties of injection moulded parts 注塑速度曲线对注塑件性能的影响

IF 1.3 4区工程技术

International Polymer Processing Pub Date : 2024-04-19 DOI: 10.1515/ipp-2024-0042

Christian Hopmann, Thilo Köbel

引用次数: 0

Evaluation of thermal contact resistance of molten resin–mold interface during high-thermal-conductivity polyphenylene sulfide filling in injection molding 评估注塑成型中高导热聚苯硫醚填充过程中熔融树脂-模具界面的热接触电阻

IF 1.3 4区工程技术

International Polymer Processing Pub Date : 2024-04-18 DOI: 10.1515/ipp-2023-4448

Akifumi Kurita, Yohei Yoshimura, Makoto Suzuki, H. Yokoi, Y. Kajihara

{"title":"Evaluation of thermal contact resistance of molten resin–mold interface during high-thermal-conductivity polyphenylene sulfide filling in injection molding","authors":"Akifumi Kurita, Yohei Yoshimura, Makoto Suzuki, H. Yokoi, Y. Kajihara","doi":"10.1515/ipp-2023-4448","DOIUrl":"https://doi.org/10.1515/ipp-2023-4448","url":null,"abstract":"\u0000 High-thermal-conductivity polyphenylene sulfide (PPS) has both mechanical and heat dissipation properties, and its low weight and fuel efficiency make it a suitable replacement for metals in automobiles. However, this resin often causes filling defects in the injection molding process. This is due to the higher thermal conductivity, which causes the molten resin to solidify more quickly during the filling process. Therefore, it is important to predict the cooling and filling behaviors of the resin accurately using computer-aided engineering (CAE). Currently, many commercial software programs use thermal contact resistance (TCR) as the thermal boundary condition between the mold and resin. However, there is no established method to accurately evaluate TCR during filling with high spatial resolution and response, and the accuracy of CAE cannot be maintained. Therefore, we used thermography and a prismatic glass insert mold to thermally visualize and analyze the filling process of this resin. Consequently, we succeeded in evaluating TCR values with high spatial resolution and response. The obtained TCR values varied depending on the flow state and pressure. To further validate the obtained TCR values, we compared “the visualization results of real flow conditions” and “the flow prediction results of CAE considering the obtained TCR values”.","PeriodicalId":14410,"journal":{"name":"International Polymer Processing","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2024-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140687787","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 mechanical, thermal and wear properties of eggshell/PLA composites 蛋壳/聚乳酸复合材料的机械、热和磨损特性研究

IF 1.3 4区工程技术

International Polymer Processing Pub Date : 2024-04-16 DOI: 10.1515/ipp-2024-0005

R. Sharma, Shiv Ranjan Kumar

{"title":"Investigation of the mechanical, thermal and wear properties of eggshell/PLA composites","authors":"R. Sharma, Shiv Ranjan Kumar","doi":"10.1515/ipp-2024-0005","DOIUrl":"https://doi.org/10.1515/ipp-2024-0005","url":null,"abstract":"\u0000 The current study investigated the potential application of agricultural waste chicken eggshell (CES) as a reinforcement in composites made of poly (lactic acid) (PLA). With the use of twin extruder and injection molding machine, polymer composites have been developed. The performance of the composites was assessed with respect to its mechanical, thermal, and wear properties. It was shown that the increase in eggshell content led to the increase in void content and water absorption. Despite the increase in void content, the mechanical properties, in particular, micro-hardness, tensile strength and flexural strength were significantly improved. Conversely, when the eggshell content increased from 0 to 30 wt%, the impact strength was decreased. A slight decrease in fracture toughness was observed. Thermal properties, such as thermal stability and thermal degradation temperature, were improved with an increase in eggshell content. PLA, PLA-CES-10, PLA-CES-20, and PLA-CES-30 composites exhibited increase in erosion rate by 13.8 %, 10 %, 9 %, and 6 %, respectively, when the impact velocity was increased from 30 m/s to 50 m/s. Data were analyzed statistically with one-way ANOVA and post hoc Tukey’s HSD test (α < 0.05). Overall, PLA/eggshell based polymer composites performed exceptionally well, in addition to their environmental benefits, pollution control, waste utilization, and reduced production cost.","PeriodicalId":14410,"journal":{"name":"International Polymer Processing","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2024-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140697084","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

Tribo-mechanical and structural characterizations of LLDPE matrix bio-composite reinforced with almond shell micro-particles: effects of the processing methodology 用杏仁壳微颗粒增强的低密度聚乙烯基质生物复合材料的三力学和结构特征：加工方法的影响

IF 1.3 4区工程技术

International Polymer Processing Pub Date : 2024-04-16 DOI: 10.1515/ipp-2023-4384

Mongi Boujelben, Mohamed Abid, Mohamed Kharrat, M. Dammak

{"title":"Tribo-mechanical and structural characterizations of LLDPE matrix bio-composite reinforced with almond shell micro-particles: effects of the processing methodology","authors":"Mongi Boujelben, Mohamed Abid, Mohamed Kharrat, M. Dammak","doi":"10.1515/ipp-2023-4384","DOIUrl":"https://doi.org/10.1515/ipp-2023-4384","url":null,"abstract":"\u0000 The objective of this research work is to examine the effect of mixing operation in the reinforcement of linear low density polyethylene (LLDPE) with almond shell powder (ASP). Two groups of bio-composites mixed in solid state and melt extrusion state were developed by the standard thermo compression molding process. For each group of bio-composites developed, the mass percentage of ASP was varied from 5 % to 40 %. Tensile and friction tests and micro structural analyzes were carried out. The main results show that the addition of ASP particles: decreases the maximum tensile stress and increases the rigidity of the two types of bio-composites produced. A significant improvement was observed in terms of maximum stress and Young’s modulus of the bio-composites mixed in the molten state compared to those mixed in the solid state. Microscopic observations concluded that the melt-blended ASPs were better covered by the LLDPE matrix and the dispersion was successfully achieved. Friction tests have shown an improvement in tribological performance thanks to the addition of an optimal percentage of ASP equal to 20 % in the case of bio-composites mixed in the molten state. From this research work, it can be concluded that the LLDPE/ASP homogenization method influences the mechanical and tribological properties of bio-composites.","PeriodicalId":14410,"journal":{"name":"International Polymer Processing","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2024-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140695053","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

Study on flame retardant properties and thermal stability of synergistically modified polyurethane foam with ammonium polyphosphate and barium phytate 聚磷酸铵和植酸钡协同改性聚氨酯泡沫的阻燃性能和热稳定性研究

IF 1.3 4区工程技术

International Polymer Processing Pub Date : 2024-04-10 DOI: 10.1515/ipp-2023-4454

Gaojie Ding, Simiao Sun, Shou Ding, Xu Zhang, Hua Xie

{"title":"Study on flame retardant properties and thermal stability of synergistically modified polyurethane foam with ammonium polyphosphate and barium phytate","authors":"Gaojie Ding, Simiao Sun, Shou Ding, Xu Zhang, Hua Xie","doi":"10.1515/ipp-2023-4454","DOIUrl":"https://doi.org/10.1515/ipp-2023-4454","url":null,"abstract":"\u0000 Barium phytate (Pa–Ba) was prepared by phytic acid and barium carbonate, and then the flame-retardant modified polyurethane foam (PUF) was synergized with Pa–Ba and ammonium polyphosphate (APP). The flame retardant properties and thermal stability of the modified PUFs were investigated by thermogravimetric analysis, cone calorimetry (CONE) and smoke density (Ds). The results showed the modified PUF with the addition of 5 % Pa–Ba and 10 % APP (PUF-A10-PB5) had the highest integral programmed decomposition temperature and the activation energy, indicating that its thermal stability was better compared with other samples. In addition, PUF-A10-PB5 had the lowest total heat release under different radiation intensities, and it had the smallest Ds and the highest light transmittance under the flame and flameless condition. The current results indicated that PUF-A10-PB5 had better flame-retardant properties and thermal stability, which can provide a useful reference for future experimental studies on the flame retardant properties of phytate-modified PUF.","PeriodicalId":14410,"journal":{"name":"International Polymer Processing","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2024-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140716727","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

Impact of fiber diameter on mechanical and water absorption properties of short bamboo fiber-reinforced polyester composites 纤维直径对短竹纤维增强聚酯复合材料机械性能和吸水性能的影响

IF 1.3 4区工程技术

International Polymer Processing Pub Date : 2024-03-29 DOI: 10.1515/ipp-2023-4458

Danish Tahir, Muhammad Ramzan Karim, Shuying Wu, Muhammad Rehan, Muhammad Tahir, Sheher Bano Zaigham, Nishat Riaz

{"title":"Impact of fiber diameter on mechanical and water absorption properties of short bamboo fiber-reinforced polyester composites","authors":"Danish Tahir, Muhammad Ramzan Karim, Shuying Wu, Muhammad Rehan, Muhammad Tahir, Sheher Bano Zaigham, Nishat Riaz","doi":"10.1515/ipp-2023-4458","DOIUrl":"https://doi.org/10.1515/ipp-2023-4458","url":null,"abstract":"\u0000 This study aims to investigate the effect of fiber diameter on the mechanical and water absorption characteristics of short bamboo fiber-reinforced polyester composites. Three different fiber sizes (180–250 µm, 250–500 µm, and 700–1000 µm) were used to prepare composites with varying fiber loadings of 10 wt.%, 20 wt.%, and 30 wt.%. The fabricated composites were cut to standard dimensions, and tension tests, impact tests, and water absorption tests were performed. Reproducible results were obtained, revealing that using fibers of smaller diameter (180–250 µm) increased the tensile strength of the composite by 20 % compared to composites with larger diameter fibers (700–1000 µm), while the tensile modulus showed a 22 % enhancement with decreasing fiber diameter. Composites with larger diameter fibers exhibited more defects (voids and matrix detachment), as revealed by SEM analysis of fractured surfaces. The impact strength of composites with a diameter size of 700–1000 µm increased by 33 % compared to composites reinforced with the smallest fiber diameter. Water absorption of the composites was also studied by long-term immersion in water, showing that water intake was high initially, reaching a saturation point after a certain time interval. The absorbed water values indicated that composites with the smallest diameter (180–250 µm) showed maximum water intake due to the creation of more water intake sites (increased interfacial area), while composites with the largest diameter fibers (700–1000 µm) exhibited the least water absorption as the interaction region between fibers and matrix was reduced.","PeriodicalId":14410,"journal":{"name":"International Polymer Processing","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2024-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140365055","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

Exploration of the thermal and mechanical characteristics of polymethyl methacrylate-based copolymers: implications for wind turbine blades applications 探索聚甲基丙烯酸甲酯基共聚物的热特性和机械特性：对风力涡轮机叶片应用的影响

IF 1.3 4区工程技术

International Polymer Processing Pub Date : 2024-03-08 DOI: 10.1515/ipp-2023-4480

Huimin Xue, Chun Li, Jiayang Sui, Lifei Liu, Xiaokun Ma, Chenhong Liang, Weizhen Zhao

{"title":"Exploration of the thermal and mechanical characteristics of polymethyl methacrylate-based copolymers: implications for wind turbine blades applications","authors":"Huimin Xue, Chun Li, Jiayang Sui, Lifei Liu, Xiaokun Ma, Chenhong Liang, Weizhen Zhao","doi":"10.1515/ipp-2023-4480","DOIUrl":"https://doi.org/10.1515/ipp-2023-4480","url":null,"abstract":"\u0000 Wind turbine (WT) blade fabrication typically employs thermosetting resins, whose recycling challenges post-retirement have resulted in environmental pressures. Thus, there is an urgent need to develop a low-viscosity, high-performance, and recyclable material with excellent mechanical properties that is compatible with WT fabrication processes, serving as a viable alternative to traditional epoxy resins. Poly(methyl methacrylate) (PMMA) resin is considered a promising candidate for replacing epoxy resins. However, the mechanical properties of PMMA still require improvement. In this study, we investigated the effects of introducing copolymerized monomers on the comprehensive performance of PMMA resin without affecting its viscosity, examining the influence of these copolymerized monomers on the material’s thermal and mechanical properties. Meanwhile, the mechanical properties of the synthesized PMMA-based copolymers were compared with those of blade-specific epoxy resin (WD0135). The results revealed that compared to WD0135, the flexural strength and modulus of the prepared PMMA copolymers significantly increased to 96.6 and 3158.6 MPa, respectively, with a tensile strength reaching 74.2 MPa. Consequently, this series of PMMA-based resins demonstrates immense potential for large-scale material part fabrication via casting techniques.","PeriodicalId":14410,"journal":{"name":"International Polymer Processing","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2024-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140257637","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 the mechanical and wear behavior of epoxy/Indian almond/peepal hybrid composites 环氧树脂/印度杏仁/柚木混合复合材料的机械和磨损行为实验研究

IF 1.3 4区工程技术

International Polymer Processing Pub Date : 2024-01-29 DOI: 10.1515/ipp-2023-4440

X. R. Xavier, K. Suderson, K. Viswanath, D. Velmurugan

引用次数: 0