Samuel Jose Gaviria, Andrés Felipe Grajales Ramírez, Leon Mauricio Rivera
Validate a low-cost Wireless for the census of acceleration in sports activities. For validation, a linear transducer (T-Force System Ergotech, Murcia, Spain) and videography analysis (SkillSpector version 1.3.2) were used. Participants developed the flat bench press in a SMITH machine. The protocol consisted of a repetition of flat bench press with a constant load (18 kg). Recovery between repetition was 15 seconds. In total 5 subjects developed 84 repetitions. The data were characterized by a minor difference between the values of the mean of the Wireless vs T-Force device (0.18) in contrast to Wireless vs. Videography (0.46). The results show that there are no statistically significant differences in the acceleration of displacement between the Wireless device, linear transducer and videography analysis; however, the reported Pearson correlation levels showed a moderate association (p <0.05) for the two tests. The assumption of independence of the errors was proven by the Durbin-Watson test. The results suggest that, although there were no high associations between the devices, the economic component of the production of the Wireless device makes it a viable alternative for the control and measurement of acceleration in sports.
验证一种低成本的无线运动加速普查。为了验证，使用了线性传感器(T-Force System Ergotech, Murcia, Spain)和视频分析(SkillSpector version 1.3.2)。参与者在史密斯机器上开发了平面卧推机。该方案包括在恒定负荷(18公斤)下重复平卧推。两次重复之间的恢复时间为15秒。5名受试者共进行84次重复。数据的特点是无线与T-Force设备的平均值(0.18)与无线与摄像(0.46)之间的差异很小。结果表明，无线装置、线性换能器和摄像分析之间的位移加速度无统计学差异;然而，报告的Pearson相关水平显示两个测试有中度关联(p <0.05)。杜宾-沃森试验证明了误差独立的假设。结果表明，虽然设备之间没有高度的关联，但生产无线设备的经济成分使其成为运动中控制和测量加速度的可行替代方案。
{"title":"Validación de un dispositivo Wireless para el control de variables cinemáticas en el rendimiento deportivo","authors":"Samuel Jose Gaviria, Andrés Felipe Grajales Ramírez, Leon Mauricio Rivera","doi":"10.21500/20275846.4806","DOIUrl":"https://doi.org/10.21500/20275846.4806","url":null,"abstract":"Validate a low-cost Wireless for the census of acceleration in sports activities. For validation, a linear transducer (T-Force System Ergotech, Murcia, Spain) and videography analysis (SkillSpector version 1.3.2) were used. Participants developed the flat bench press in a SMITH machine. The protocol consisted of a repetition of flat bench press with a constant load (18 kg). Recovery between repetition was 15 seconds. In total 5 subjects developed 84 repetitions. The data were characterized by a minor difference between the values of the mean of the Wireless vs T-Force device (0.18) in contrast to Wireless vs. Videography (0.46). The results show that there are no statistically significant differences in the acceleration of displacement between the Wireless device, linear transducer and videography analysis; however, the reported Pearson correlation levels showed a moderate association (p <0.05) for the two tests. The assumption of independence of the errors was proven by the Durbin-Watson test. The results suggest that, although there were no high associations between the devices, the economic component of the production of the Wireless device makes it a viable alternative for the control and measurement of acceleration in sports.","PeriodicalId":30271,"journal":{"name":"Ingenierias USBMed","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45013039","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}
Víctor Daniel Gil Vera, Catalina Quintero López, Elizabeth Zapata López, Luisa Fernanda Sepúlveda Gutiérrez, Andrés Felipe Vélez Vásquez
El objetivo del trabajo es presentar el software “Vértice” para la rehabilitación neuropsicológica de infractores de la ley (IL) con trastorno de personalidad antisocial (TAP), que se encuentran en situación privativa de la libertad en un Centro de Atención-Especializado (CAE) de la Ciudad de Medellín, Colombia. En la construcción del software se realizó inicialmente la ingeniería de requisitos para identificar las necesidades de los equipos psicosociales que laboran en los CAE, luego se procedió al diseño de las tareas cognitivas dirigidas al mejoramiento de la memoria de trabajo (MT) y la cognición social (CS) a partir de publicaciones científicas, principios metodológicos y teóricos de la neuropsicología, posteriormente se llevó a cabo la programación en Java-Script y finalmente la validación con dos grupos (control y experimental) cada uno conformado por 30 personas, se utilizó un muestreo intencionado. Se realizó un pretest y un postest, usando las pruebas BASC T-3, WAIS IV, Test del falso paso, Test de la mirada. Los resultados de las pruebas aplicadas de CS y MT del postest son superiores al pretest en el grupo experimental, permitiendo validar la eficacia del software para mejorar el rendimiento cognitivo.
{"title":"Desarrollo de un software para el entrenamiento neuropsicológico de jóvenes infractores de la ley con trastorno de la personalidad antisocial","authors":"Víctor Daniel Gil Vera, Catalina Quintero López, Elizabeth Zapata López, Luisa Fernanda Sepúlveda Gutiérrez, Andrés Felipe Vélez Vásquez","doi":"10.21500/20275846.4828","DOIUrl":"https://doi.org/10.21500/20275846.4828","url":null,"abstract":"El objetivo del trabajo es presentar el software “Vértice” para la rehabilitación neuropsicológica de infractores de la ley (IL) con trastorno de personalidad antisocial (TAP), que se encuentran en situación privativa de la libertad en un Centro de Atención-Especializado (CAE) de la Ciudad de Medellín, Colombia. En la construcción del software se realizó inicialmente la ingeniería de requisitos para identificar las necesidades de los equipos psicosociales que laboran en los CAE, luego se procedió al diseño de las tareas cognitivas dirigidas al mejoramiento de la memoria de trabajo (MT) y la cognición social (CS) a partir de publicaciones científicas, principios metodológicos y teóricos de la neuropsicología, posteriormente se llevó a cabo la programación en Java-Script y finalmente la validación con dos grupos (control y experimental) cada uno conformado por 30 personas, se utilizó un muestreo intencionado. Se realizó un pretest y un postest, usando las pruebas BASC T-3, WAIS IV, Test del falso paso, Test de la mirada. Los resultados de las pruebas aplicadas de CS y MT del postest son superiores al pretest en el grupo experimental, permitiendo validar la eficacia del software para mejorar el rendimiento cognitivo.","PeriodicalId":30271,"journal":{"name":"Ingenierias USBMed","volume":"12 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41655433","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}
Andrés Felipe Hernández Marulanda, Leidy Johana Gaviria
In this paper, the study of linear elasticity is proposed in a nano reinforced composite material subjected to a constant external force in order to be used in the manufacture of lower limb prostheses, for which a computational algorithm was developed that solves the equation of linear elasticity (Navier equation), using the boundary element method and radial base functions. It was determined if the use of an algorithm can predict the change in a two-dimensional geometry at the level of deformations, displacements and stresses in a composite material reinforced with carbon nanotubes used in the manufacture of lower limb prostheses and demonstrate compliance with the desired requirements when subjected to constant force. Therefore, with the implementation of the algorithm and the analysis of the information obtained, the selection process of a nano-reinforced composite material for use in the development of lower limb prostheses is supported when subjected to constant force. According to the algorithm developed and the results found, the boundary element method allows the simulation of the mechanical behavior of a composite material (A36 steel, at carbon nanotube concentrations of 1%, 2%, 3%)
{"title":"Solución de la ecuación de Navier para el cálculo de elasticidad lineal en materiales nanoreforzados utilizando el método de elementos de frontera.","authors":"Andrés Felipe Hernández Marulanda, Leidy Johana Gaviria","doi":"10.21500/20275846.4853","DOIUrl":"https://doi.org/10.21500/20275846.4853","url":null,"abstract":"In this paper, the study of linear elasticity is proposed in a nano reinforced composite material subjected to a constant external force in order to be used in the manufacture of lower limb prostheses, for which a computational algorithm was developed that solves the equation of linear elasticity (Navier equation), using the boundary element method and radial base functions. \u0000It was determined if the use of an algorithm can predict the change in a two-dimensional geometry at the level of deformations, displacements and stresses in a composite material reinforced with carbon nanotubes used in the manufacture of lower limb prostheses and demonstrate compliance with the desired requirements when subjected to constant force. Therefore, with the implementation of the algorithm and the analysis of the information obtained, the selection process of a nano-reinforced composite material for use in the development of lower limb prostheses is supported when subjected to constant force. According to the algorithm developed and the results found, the boundary element method allows the simulation of the mechanical behavior of a composite material (A36 steel, at carbon nanotube concentrations of 1%, 2%, 3%)","PeriodicalId":30271,"journal":{"name":"Ingenierias USBMed","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42091311","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}
C. Prieto, Miguel Ángel Martínez, Gabriel Camargo Vargas, Camilo Andrés Arias Henao
This paper studies to laboratory scale the efficiency of the Pelton turbine in a flow range between 0,1 L/S y 0,2 L/S,with the purpose of quantify emissions of carbon dioxide (CO2) from operation and the result compare with the energy consumption of a pilot home. Therefore it is necesary to consider different methods of obtaining energy , with provide a decrease in the impact on the environment.
本文以实验室规模研究了Pelton涡轮机在0.1 L/S y 0.2 L/S流量范围内的效率，目的是量化运行中的二氧化碳排放量，并将结果与试点家庭的能耗进行比较。因此，有必要考虑不同的获取能源的方法，以减少对环境的影响。
{"title":"Emisiones de CO2 de una turbina Pelton en laboratorio para condiciones de caudal entre 0,1 l/s y 0,2 l/s.","authors":"C. Prieto, Miguel Ángel Martínez, Gabriel Camargo Vargas, Camilo Andrés Arias Henao","doi":"10.21500/20275846.4789","DOIUrl":"https://doi.org/10.21500/20275846.4789","url":null,"abstract":"This paper studies to laboratory scale the efficiency of the Pelton turbine in a flow range between 0,1 L/S y 0,2 L/S,with the purpose of quantify emissions of carbon dioxide (CO2) from operation and the result compare with the energy consumption of a pilot home. \u0000Therefore it is necesary to consider different methods of obtaining energy , with provide a decrease in the impact on the environment.","PeriodicalId":30271,"journal":{"name":"Ingenierias USBMed","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47311386","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}
Marco Antonio Chamorro, María Fernanda Acosta Romo
Objective: to design a protocol for the capture of electrohysterographic signals, for the prediction of preterm delivery. Materials and methods: exploratory - descriptive, purposeful study. For the design, a documentary review of qualitative and quantitative scientific research articles was carried out, in English, Spanish, they were consulted in sources of biomedical information with words from specialized thesauri such as MEsH and DeCS, they were consulted in databases: PubMed, Scielo, IEEE, among others. The search expressions were: Electromyography, uterine muscle and protocol. No specific protocols for uterine electrohysterography were found, which is why the publications referring to electromyography protocols in general were taken, finding a total of 193 publications, of which 23 articles were selected, published between the years 2012 to 2020. For the analysis the research method called integrative review was used. Results. The protocol establishes the criteria that must be taken into account before and during the procedure, the equipment and materials required, and contraindications, to capture the record of electrohysterographic signals. Conclusion. Health care protocols are fundamental since they standardize the processes that must be followed in capturing signals, minimizing possible complications during and after the procedure, to the benefit of the mother-pair son.
{"title":"Protocolo para captura de señales electromiográficas producidas por músculo uterino en gestantes para predicción de parto pretérmino","authors":"Marco Antonio Chamorro, María Fernanda Acosta Romo","doi":"10.21500/20275846.4715","DOIUrl":"https://doi.org/10.21500/20275846.4715","url":null,"abstract":"Objective: to design a protocol for the capture of electrohysterographic signals, for the prediction of preterm delivery. Materials and methods: exploratory - descriptive, purposeful study. For the design, a documentary review of qualitative and quantitative scientific research articles was carried out, in English, Spanish, they were consulted in sources of biomedical information with words from specialized thesauri such as MEsH and DeCS, they were consulted in databases: PubMed, Scielo, IEEE, among others. The search expressions were: Electromyography, uterine muscle and protocol. No specific protocols for uterine electrohysterography were found, which is why the publications referring to electromyography protocols in general were taken, finding a total of 193 publications, of which 23 articles were selected, published between the years 2012 to 2020. For the analysis the research method called integrative review was used. Results. The protocol establishes the criteria that must be taken into account before and during the procedure, the equipment and materials required, and contraindications, to capture the record of electrohysterographic signals. Conclusion. Health care protocols are fundamental since they standardize the processes that must be followed in capturing signals, minimizing possible complications during and after the procedure, to the benefit of the mother-pair son.","PeriodicalId":30271,"journal":{"name":"Ingenierias USBMed","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46415856","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 : 2021-01-30DOI: 10.29105/ingenierias24.90-16
Allison Guzmán Lembo, Carlos Daniel Mayorga Alvarado, Jimena Fernanda Dávila Vázquez, Jonathan Martínez Reyna, Angel Rodriguez-Liñan, L. M. Torres-Treviño
En este trabajo, de manera introductoria se ilustra la implementación de tres redes neuronales preentrenadas con el paradigma de aprendizaje profundo en el software MATLAB®, que pueden reconocer objetos en imágenes capturadas por una cámara. Mediante experimentos para reconocer objetos, se determinó cuál de estas redes tuvo mejor desempeño, aprovechando una base de datos estándar de imágenes. Dichos resultados se ilustran con ejemplos del uso del software y con datos comparativos de los aciertos.
{"title":"Clasificador de objetos en MATLAB® con redes neuronales de aprendizaje profundo","authors":"Allison Guzmán Lembo, Carlos Daniel Mayorga Alvarado, Jimena Fernanda Dávila Vázquez, Jonathan Martínez Reyna, Angel Rodriguez-Liñan, L. M. Torres-Treviño","doi":"10.29105/ingenierias24.90-16","DOIUrl":"https://doi.org/10.29105/ingenierias24.90-16","url":null,"abstract":"En este trabajo, de manera introductoria se ilustra la implementación de tres redes neuronales preentrenadas con el paradigma de aprendizaje profundo en el software MATLAB®, que pueden reconocer objetos en imágenes capturadas por una cámara. Mediante experimentos para reconocer objetos, se determinó cuál de estas redes tuvo mejor desempeño, aprovechando una base de datos estándar de imágenes. Dichos resultados se ilustran con ejemplos del uso del software y con datos comparativos de los aciertos.","PeriodicalId":30271,"journal":{"name":"Ingenierias USBMed","volume":"16 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81680739","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 : 2021-01-30DOI: 10.29105/ingenierias24.90-13
Judit Angster, Péte Rucz, András Miklós
En este trabajo se presentan explicaciones científicas para tener un mejor entendimiento de cómo funcionan los órganos tubulares y revisar algunas creencias comunes en su construcción, buscando mejorar este arte.
{"title":"Acústica de los órganos de tubulares y tendencias futuras en la investigación","authors":"Judit Angster, Péte Rucz, András Miklós","doi":"10.29105/ingenierias24.90-13","DOIUrl":"https://doi.org/10.29105/ingenierias24.90-13","url":null,"abstract":"En este trabajo se presentan explicaciones científicas para tener un mejor entendimiento de cómo funcionan los órganos tubulares y revisar algunas creencias comunes en su construcción, buscando mejorar este arte.","PeriodicalId":30271,"journal":{"name":"Ingenierias USBMed","volume":"14 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72399060","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 : 2021-01-30DOI: 10.29105/ingenierias24.90-9
Ana Itzel Santiago Mustafat, Arián Espinosa Roa, Edgar González Juárez, E. M. Sánchez Cervantes
Las celdas solares de perovskita (CSP) han cambiado el paradigma de investigación en el área de la energía fotovoltaica debido a la combinación de altas eficiencias junto con un menor costo y facilidad de fabricación. Las CSP se pueden fabricar mediante metodologías basadas en soluciones de compuestos precursores para el depósito de las películas de estructura tipo perovskita.Entre esos compuestos se encuentran los haluros de plomo inorgánicos (Pbl2, PbCl2, PbBr2) en combinación con compuesto orgánico metilamonio (MA) que se reporta que han alcanzado hasta un 25 % de eficiencia. A pesar de ello, estos materiales presentan desventajas como la sensibilidad de la película de perovskita a la humedad del ambiente, lo que resulta un tiempo de vida de los dispositivos corto. Una alternativa para estabilizar la celda es la aplicación de aditivos, los cuales son líquidos iónicos formados por un catión y un anión con un carácter altamente hidrófobo, basados en fosfonio (tetraburoborato de tetrabutil fosfonio(B4PBF4). El aditivo mejora significativamente la morfología de las películas, obteniendo mejoras prometedoras en la estabilidad de los dispositivos.
{"title":"Ingenierías de aditivos en celdas solares tipo perovskita","authors":"Ana Itzel Santiago Mustafat, Arián Espinosa Roa, Edgar González Juárez, E. M. Sánchez Cervantes","doi":"10.29105/ingenierias24.90-9","DOIUrl":"https://doi.org/10.29105/ingenierias24.90-9","url":null,"abstract":"Las celdas solares de perovskita (CSP) han cambiado el paradigma de investigación en el área de la energía fotovoltaica debido a la combinación de altas eficiencias junto con un menor costo y facilidad de fabricación. Las CSP se pueden fabricar mediante metodologías basadas en soluciones de compuestos precursores para el depósito de las películas de estructura tipo perovskita.Entre esos compuestos se encuentran los haluros de plomo inorgánicos (Pbl2, PbCl2, PbBr2) en combinación con compuesto orgánico metilamonio (MA) que se reporta que han alcanzado hasta un 25 % de eficiencia. A pesar de ello, estos materiales presentan desventajas como la sensibilidad de la película de perovskita a la humedad del ambiente, lo que resulta un tiempo de vida de los dispositivos corto. Una alternativa para estabilizar la celda es la aplicación de aditivos, los cuales son líquidos iónicos formados por un catión y un anión con un carácter altamente hidrófobo, basados en fosfonio (tetraburoborato de tetrabutil fosfonio(B4PBF4). El aditivo mejora significativamente la morfología de las películas, obteniendo mejoras prometedoras en la estabilidad de los dispositivos.","PeriodicalId":30271,"journal":{"name":"Ingenierias USBMed","volume":"59 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77212167","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 : 2021-01-30DOI: 10.29105/ingenierias24.90-17
Alicia Y. López Sánchez, Aída Lucina González Lara, César Guerra Torres
Los sistemas de inferencia difusos se utilizan para el análisis de decisiones o reconocimiento de patrones con el propósito de ayudar a tomar elecciones como lo haría un experto en el área. En esta investigación se desarrolló e implementó un sistema en un juego serio que ayuda a fortalecer el razonamiento lógico-matemático, el sistema evalúa si el alumno avanza, regresa o se queda en el mismo nivel con base en el tiempo y los aciertos de cada misión. Los resultados muestran que los estudiantes que avanzaron por lo menos al siguiente nivel mejoraron a diferencia de los que no.
{"title":"Desarrollo e implementación de un sistema de inferencia difuso en un juego serio que ayude a fortalecer el razonamiento lógico-matemático","authors":"Alicia Y. López Sánchez, Aída Lucina González Lara, César Guerra Torres","doi":"10.29105/ingenierias24.90-17","DOIUrl":"https://doi.org/10.29105/ingenierias24.90-17","url":null,"abstract":"Los sistemas de inferencia difusos se utilizan para el análisis de decisiones o reconocimiento de patrones con el propósito de ayudar a tomar elecciones como lo haría un experto en el área. En esta investigación se desarrolló e implementó un sistema en un juego serio que ayuda a fortalecer el razonamiento lógico-matemático, el sistema evalúa si el alumno avanza, regresa o se queda en el mismo nivel con base en el tiempo y los aciertos de cada misión. Los resultados muestran que los estudiantes que avanzaron por lo menos al siguiente nivel mejoraron a diferencia de los que no.","PeriodicalId":30271,"journal":{"name":"Ingenierias USBMed","volume":"11 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85431129","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 : 2021-01-30DOI: 10.29105/ingenierias24.90-11
P. E. Martín-Várguez, V. González-González, M. A. Garza-Navarro, A. Torres-Castro
Six fluorinated precursors were synthesized from commercial polymer Fluorolink E10-H, 3-isocyanatepropyl ethoxysilane and 3-aminepropyl methoxysilane. The precursors were spin-coated on glass substrates and annealed at 150 °C for 2 h to obtain hydrophobic coatings. Chemical structure of was determined by infrared spectroscopy. Hydrophobicity was measured from drop contact angle, ranging between 70 and 93º. Hydrophobicity increased with the number of silane groups until a certain limit before losing it. Precursor P111 has the better properties (thermal stability 283.5 °C, contact angle 93°) within our work.
{"title":"Synthesis of hydrophobic fluorinated coating by further addition of isocyanate and amine groups to urethane bond","authors":"P. E. Martín-Várguez, V. González-González, M. A. Garza-Navarro, A. Torres-Castro","doi":"10.29105/ingenierias24.90-11","DOIUrl":"https://doi.org/10.29105/ingenierias24.90-11","url":null,"abstract":"Six fluorinated precursors were synthesized from commercial polymer Fluorolink E10-H, 3-isocyanatepropyl ethoxysilane and 3-aminepropyl methoxysilane. The precursors were spin-coated on glass substrates and annealed at 150 °C for 2 h to obtain hydrophobic coatings. Chemical structure of was determined by infrared spectroscopy. Hydrophobicity was measured from drop contact angle, ranging between 70 and 93º. Hydrophobicity increased with the number of silane groups until a certain limit before losing it. Precursor P111 has the better properties (thermal stability 283.5 °C, contact angle 93°) within our work.","PeriodicalId":30271,"journal":{"name":"Ingenierias USBMed","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91134642","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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