Pub Date : 2023-05-18DOI: 10.1177/09673911231175597
Branislava Petronijević Šarčev, I. Šarčev, Teodor Atanackovic
As a part of this study, a mathematical model based on two-compartment pharmacokinetic system with general fractional derivatives was developed. Its aim was to describe the release of BisGMA and TEGDMA monomers from composite core resin over three time periods. For this purpose, five Clearfil Photo Core resin samples were prepared and elution was measured using high performance liquid chromatography at 1, 7 and 28 days post-immersion in 75% ethanol. The findings confirmed good model fit to the data related to released monomer quantity.
{"title":"Monomer elution model of composite resin material","authors":"Branislava Petronijević Šarčev, I. Šarčev, Teodor Atanackovic","doi":"10.1177/09673911231175597","DOIUrl":"https://doi.org/10.1177/09673911231175597","url":null,"abstract":"As a part of this study, a mathematical model based on two-compartment pharmacokinetic system with general fractional derivatives was developed. Its aim was to describe the release of BisGMA and TEGDMA monomers from composite core resin over three time periods. For this purpose, five Clearfil Photo Core resin samples were prepared and elution was measured using high performance liquid chromatography at 1, 7 and 28 days post-immersion in 75% ethanol. The findings confirmed good model fit to the data related to released monomer quantity.","PeriodicalId":20417,"journal":{"name":"Polymers and Polymer Composites","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78460440","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-05-04DOI: 10.1177/096739119700500604
I.M. Fouda, M.A. Kabeel, F.M. El-Sharkawy
The changes in refractive indices and birefringence of nylon 6-6 fibres with different annealing conditions were” studied by interferometry. The polarizing interference microscope was used to deter...
用干涉测量法研究了尼龙6-6纤维在不同退火条件下折射率和双折射率的变化。偏光干涉显微镜用于阻止…
{"title":"Opto-Thermal Properties of Fibres. Part 2: Investigation of Optical Parameter Changes in Annealed and Quenched Nylon 6-6","authors":"I.M. Fouda, M.A. Kabeel, F.M. El-Sharkawy","doi":"10.1177/096739119700500604","DOIUrl":"https://doi.org/10.1177/096739119700500604","url":null,"abstract":"The changes in refractive indices and birefringence of nylon 6-6 fibres with different annealing conditions were” studied by interferometry. The polarizing interference microscope was used to deter...","PeriodicalId":20417,"journal":{"name":"Polymers and Polymer Composites","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138519380","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-05-04DOI: 10.1177/096739119700500603
Chun-Hai Qiu, Veikko Komppa, Arto Sivola
A study of the compatibilization of polyamide (PA)/ultra high molecular weight polyethylene (UHMWPE) blends by reactive processing has been initiated. Attention has been focused on the effect of co...
{"title":"Compatibilized Polyamide/Ultra High Molecular Weight Polyethylene Blends","authors":"Chun-Hai Qiu, Veikko Komppa, Arto Sivola","doi":"10.1177/096739119700500603","DOIUrl":"https://doi.org/10.1177/096739119700500603","url":null,"abstract":"A study of the compatibilization of polyamide (PA)/ultra high molecular weight polyethylene (UHMWPE) blends by reactive processing has been initiated. Attention has been focused on the effect of co...","PeriodicalId":20417,"journal":{"name":"Polymers and Polymer Composites","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138519394","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-05-04DOI: 10.1177/096739119700500601
Tae Jin Kang, Jae Heung Yoo
An investigation of the buckling and failure characteristics of laminated composites with elliptical holes has been conducted. To predict critical buckling load and first ply failure load, we perfo...
对椭圆孔层合复合材料的屈曲破坏特性进行了研究。为了预测临界屈曲载荷和首层失效载荷，我们进行了…
{"title":"A Numerical Study of the Buckling and Failure Characteristics of Laminated Composites with Elliptical Holes","authors":"Tae Jin Kang, Jae Heung Yoo","doi":"10.1177/096739119700500601","DOIUrl":"https://doi.org/10.1177/096739119700500601","url":null,"abstract":"An investigation of the buckling and failure characteristics of laminated composites with elliptical holes has been conducted. To predict critical buckling load and first ply failure load, we perfo...","PeriodicalId":20417,"journal":{"name":"Polymers and Polymer Composites","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138519381","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-05-04DOI: 10.1177/096739119700500602
Stefan Tall, Sigbritt Karlsson, Ann-Christine Albertsson
The value of recycled high-density polyethylene (HDPE) is lowered if it contains impurities of PP, PS or PET, hut the embrittlement (partial loss of ductility and toughness) that arises when HDPE i...
{"title":"EPDM Elastomers as Impact Modifiers for Contaminated, Recycled HDPE","authors":"Stefan Tall, Sigbritt Karlsson, Ann-Christine Albertsson","doi":"10.1177/096739119700500602","DOIUrl":"https://doi.org/10.1177/096739119700500602","url":null,"abstract":"The value of recycled high-density polyethylene (HDPE) is lowered if it contains impurities of PP, PS or PET, hut the embrittlement (partial loss of ductility and toughness) that arises when HDPE i...","PeriodicalId":20417,"journal":{"name":"Polymers and Polymer Composites","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138519379","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-05-04DOI: 10.1177/096739119700500802
Robert A. Shanks
Nucleation of polypropylene is important in determining its mechanical properties. Nucleation in polypropylene is nearly always found to be heterogeneous. Control is best achieved by addition of a ...
聚丙烯的成核是决定其力学性能的重要因素。聚丙烯的成核几乎总是不均匀的。控制最好是通过添加……
{"title":"Nucleation of Impact Modified Filled Polypropylene*","authors":"Robert A. Shanks","doi":"10.1177/096739119700500802","DOIUrl":"https://doi.org/10.1177/096739119700500802","url":null,"abstract":"Nucleation of polypropylene is important in determining its mechanical properties. Nucleation in polypropylene is nearly always found to be heterogeneous. Control is best achieved by addition of a ...","PeriodicalId":20417,"journal":{"name":"Polymers and Polymer Composites","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138519392","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-05-04DOI: 10.1177/096739119700500801
Marianne Gilbert, Pinsupha Petiraksakul
Conditions have been established for coating particulate fillers (magnesium hydroxide and calcium carbonate) with metal stearates. The coating process was followed using a quantitative DRIFT (Diffu...
建立了用金属硬脂酸盐包覆颗粒填料(氢氧化镁和碳酸钙)的条件。采用定量漂移(Diffu…
{"title":"Stearate Coatings on Particulate Fillers - the Effects on Resulting Compound Properties*","authors":"Marianne Gilbert, Pinsupha Petiraksakul","doi":"10.1177/096739119700500801","DOIUrl":"https://doi.org/10.1177/096739119700500801","url":null,"abstract":"Conditions have been established for coating particulate fillers (magnesium hydroxide and calcium carbonate) with metal stearates. The coating process was followed using a quantitative DRIFT (Diffu...","PeriodicalId":20417,"journal":{"name":"Polymers and Polymer Composites","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138519393","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-04-29DOI: 10.1177/09673911231168046
J. Weber, J. Schlimbach
To achieve short cycle times, CF/PEEK tape preforms are laid up quickly in ATL, thus tape preforms are only partially consolidated. Different gas volume flows are set to vary the energy input during tape laying at 1 m/s. The tape preforms are characterized by means of thickness measurements, microsection analysis, peel-test, compression thermal analysis and flexural test to assess the degree of consolidation. Subsequently to ATL, tape preforms are processed in stamp forming at different pressure settings in a rapid-closing downstroke press. The resulting laminates are analyzed to assess the influence of tape preform consolidation and molding pressure. The results reveal a dependency between gas volume flow during automated tape laying and consolidation of the correspondent tape preforms. Laminate quality of specimen after stamp forming is independent to the tape preform consolidation according to the results of this investigation.
{"title":"Stamp forming of partially consolidated CF/PEEK tape preforms produced in a high-speed automated tape laying process","authors":"J. Weber, J. Schlimbach","doi":"10.1177/09673911231168046","DOIUrl":"https://doi.org/10.1177/09673911231168046","url":null,"abstract":"To achieve short cycle times, CF/PEEK tape preforms are laid up quickly in ATL, thus tape preforms are only partially consolidated. Different gas volume flows are set to vary the energy input during tape laying at 1 m/s. The tape preforms are characterized by means of thickness measurements, microsection analysis, peel-test, compression thermal analysis and flexural test to assess the degree of consolidation. Subsequently to ATL, tape preforms are processed in stamp forming at different pressure settings in a rapid-closing downstroke press. The resulting laminates are analyzed to assess the influence of tape preform consolidation and molding pressure. The results reveal a dependency between gas volume flow during automated tape laying and consolidation of the correspondent tape preforms. Laminate quality of specimen after stamp forming is independent to the tape preform consolidation according to the results of this investigation.","PeriodicalId":20417,"journal":{"name":"Polymers and Polymer Composites","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75130542","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-04-28DOI: 10.1177/096739119400200203
A. Meij, O. Munder, M. Neitzel
The mechanical characteristics of GMT strong depend on processing parameters. Processing simulation codes give satisfactory results on mould-filling, but not yet on fibre orientation and mechanical...
{"title":"Fibre Orientation Behaviour of Different Types of Glass Mat Reinforced Thermoplastics (GMT)","authors":"A. Meij, O. Munder, M. Neitzel","doi":"10.1177/096739119400200203","DOIUrl":"https://doi.org/10.1177/096739119400200203","url":null,"abstract":"The mechanical characteristics of GMT strong depend on processing parameters. Processing simulation codes give satisfactory results on mould-filling, but not yet on fibre orientation and mechanical...","PeriodicalId":20417,"journal":{"name":"Polymers and Polymer Composites","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138519378","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-04-28DOI: 10.1177/09673911221095410
Yi Cai, Z. Liu, Junjie Gu, Yanming Fu, T. Zhao
In this paper, a rotating functionally graded (FG) polymer nanocomposite shaft-disk assembly reinforced with graphene nanoplatelets (GPLs) resting on elastic supports is modelled and its vibration behaviours are analysed. The effective material properties of the shaft and disk are assumed to vary along their radius directions and determined via the Halpin–Tsai model together with the rule of mixture. Different non-uniform and uniform distributions of GPLs in the rotating assembly are taken into account. In accordance with the finite element (FE) method, the modelling and free vibration analysis of the nanocomposite shaft-disk rotor system is conducted. To verify the present analysis, both the theoretical and experimental methods are employed. A comprehensive parametric study on the effects of the graphene nanoplatelets (GPL) weight fraction, GPL distribution pattern, length-to-thickness ratio and length-to-width ratio of GPLs, shaft length, elastic support stiffness and rotating speed on the free vibration results are investigated, which gives effective ways to achieve improved mechanical performance of a rotating nanocomposite disk-shaft assembly.
{"title":"Vibration characteristics of a functionally graded polymer nanocomposite shaft-disk rotor reinforced with graphene nanoplatelets","authors":"Yi Cai, Z. Liu, Junjie Gu, Yanming Fu, T. Zhao","doi":"10.1177/09673911221095410","DOIUrl":"https://doi.org/10.1177/09673911221095410","url":null,"abstract":"In this paper, a rotating functionally graded (FG) polymer nanocomposite shaft-disk assembly reinforced with graphene nanoplatelets (GPLs) resting on elastic supports is modelled and its vibration behaviours are analysed. The effective material properties of the shaft and disk are assumed to vary along their radius directions and determined via the Halpin–Tsai model together with the rule of mixture. Different non-uniform and uniform distributions of GPLs in the rotating assembly are taken into account. In accordance with the finite element (FE) method, the modelling and free vibration analysis of the nanocomposite shaft-disk rotor system is conducted. To verify the present analysis, both the theoretical and experimental methods are employed. A comprehensive parametric study on the effects of the graphene nanoplatelets (GPL) weight fraction, GPL distribution pattern, length-to-thickness ratio and length-to-width ratio of GPLs, shaft length, elastic support stiffness and rotating speed on the free vibration results are investigated, which gives effective ways to achieve improved mechanical performance of a rotating nanocomposite disk-shaft assembly.","PeriodicalId":20417,"journal":{"name":"Polymers and Polymer Composites","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76944136","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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