|
|
|
|
|
Eugenio Yime, Jheifer Páez
Pág. 290 - 304
AbstractDownloadsReferencesHow to Cite
|
|
|
|
|
|
|
|
|
|
|
Fuquan Deng, Shuangyi Qin, Na Liu and Wei Xu
The hydrophobic modification effect and an appropriate cost of waterborne polyurethane are regularly pursued targets of researchers. To further enhance the hydrophobic modification effect of the terminal fluoroalkyl group and control the cost, a fluorine...
ver más
|
|
|
|
|
|
|
|
|
|
|
Wenjing Xia, Nianqing Zhu, Rongjie Hou, Wengui Zhong and Mingqing Chen
The polyurethane prepolymer terminated with a double bond was synthesized using isophorone diisocyanate (IPDI), hydroxyl terminated polybutadiene (HTPB), 1,4-butanediol (BDO), and 2-hydroxyethyl acrylate (HEA). Then, a series of innovative UV-curable pol...
ver más
|
|
|
|
|
|
|
|
|
|
|
Arvind Gupta, Anoth Maharjan and Beom Soo Kim
The inherent capability to deform and reform in a predefined environment is a unique property existing in shape memory polyurethane. The intrinsic shape memory ability of the polyurethane is due to the presence of macro domains of soft and hard segments ...
ver más
|
|
|
|
|
|
|
|
|
|
|
Boumdouha Noureddine, Safidine Zitouni, Boudiaf Achraf, Chabane Houssém, Duchet-Rumeau Jannick and Gerard Jean-François
In this paper, different types of polyurethane foams (PUR) having various chemical compositions have been produced with a specific density to monitor the microstructure as much as possible. The foam may have a preferential orientation in the cell structu...
ver más
|
|
|
|
|
|
|
|
|
|
|
Jianhua Lei, Fan Feng, Shu Xu, Weibin Wen and Xuhui He
The objective of the present research was to study the effect of temperature on the mechanical properties, failure mode and uniaxial compression constitutive relationship of a modified polyurethane concrete. A total of 24 cube and 27 prism specimens were...
ver más
|
|
|
|
|
|
|
|
|
|
|
Chan-Sol Park, Soo-Jin Ahn, Yeong-Bae Lee and Chang-Ki Kang
In ultrasound diagnostics, acoustic absorbers block unwanted acoustic energy or prevent the reception of echo signals from structures outside the target area. Non-metallic absorbers provide a low-echoic signal that is suitable for observing the anatomy o...
ver más
|
|
|
|
|
|
|
|
|
|
|
Shun-Fa Hwang, Yi-Chen Tsai, Cho-Liang Tsai, Chih-Hsian Wang and Hsien-Kuang Liu
A finite element simulation was utilized in this work to analyze the thermoforming process of woven carbon fiber fabric/polyurethane thermoplastic composite sheets. In the simulation that may be classified as a discrete method, the woven carbon fiber fab...
ver más
|
|
|
|
|
|
|
|
|
|
|
Runqi Guo, Haiying Zhang, Kezheng Chen, Yang Song, Hongxia Li, Lin Ding and Yanjie Liu
In order to improve the seismic performance of reinforced concrete (RC) columns, a reinforcement technology using prestressed steel wire ropes embedded in polyurethane cement composite material is proposed. Four concrete columns reinforced with different...
ver más
|
|
|
|
|
|
|
|
|
|
|
Armando Mares Castro, Anayansi Estrada Monje, Alejandra Imelda Saldívar Campos and Anayansi Zaragoza Estrada
This research aims to analyze and optimize the antifungal property of a composite material made of polyurethane (PUR) and silver nanoparticles (AgNPs) against the fungus Trichophyton rubrum to find the optimal parameters that allow the highest inhibition...
ver más
|
|
|
|
|
|
|
|
|
|
|
M. S. M. Al-kahtani, Han Zhu, Yasser E. Ibrahim, S. I. Haruna and S. S. M. Al-qahtani
Polymer-modified cement mortar has been increasingly used as a runway/road pavement repair material due to its improved bending strength, bonding strength, and wear resistance. The flexural strength of polyurethane?cement mortar (PUCM) is critical in ach...
ver más
|
|
|
|
|
|
|
|
|
|
|
Arumugam Madhan Kumar, Akeem Yusuf Adesina, Jothi Veeramani, Mohammad Mizanur Rahman and J. S. Nirmal Ram
Hybrid treatments consisting of surface modification and subsequent protective coatings have gained extensive attention among corrosion mitigation approaches for a wide variety of structural metallic materials. This study aims to review the enhancement o...
ver más
|
|
|
|
|
|
|
|
|
|
|
Sadi I. Haruna, Han Zhu, Yasser E. Ibrahim, Jianwen Shao, Musa Adamu and Abdulwarith I. B. Farouk
The prolonged service life of civil engineering structures, such as buildings and highway pavement, means that they deteriorate with time, requiring frequent repair work. Polyurethane (PU) materials can effectively maintain engineering structures such as...
ver más
|
|
|
|
|
|
|
|
|
|
|
Morena Petrini, Margherita Tumedei, Alessandro Cipollina, Simonetta D?Ercole, Maria Stella Di Carmine, Adriano Piattelli, Marco Re and Giovanna Iezzi
(1) Background: Recently, novel dental implants that are characterized by different levels of surface roughness in the distinct parts of the fixture?s body have been introduced in the market. These surface characteristics could affect the primary stabili...
ver más
|
|
|
|
|
|
|
|
|
|
|
Yufeng Wang, Zhenheng Cao, Ziheng Wang and Aijuan Ma
To improve the overall performance of polyurethane acrylic (PUAs) coatings applied to an iron or wood substrate, a modifier, trivinylisooctyl polyhedral oligomeric silsesquioxane (TVi7iso?POSS), was successfully synthesized by a polycondensation reaction...
ver más
|
|
|
|
|
|
|
|
|
|
|
Xin Jin, Fengchi Wang, Zhichen Wang, Ye Yang, Zhaoyang Chu, Naisheng Guo and Xin Lv
To explore the interactions and mechanisms of Thermoplastic polyurethane (TPU)-modified asphalt with different kinds of mineral fillers, a micro-mechanical model for TPU-modified asphalt mastic was established, which considered the interaction between as...
ver más
|
|
|
|
|
|
|
|
|
|
|
Rui Wang, Zexu Zhang, Xuqiu Bai, Zhichun Xu, Jun Zheng, Fei Pan and Caideng Yuan
For the UV?curable waterborne polyurethane acrylate (WPUA) emulsion, the free carboxylic groups in the molecular chains introduced by hydrophilic monomers are the inherent disadvantage. We prepared UV and aziridine dual?cured WPUA (UV/AZ?WPUA) emulsion t...
ver más
|
|
|
|
|
|
|
|
|
|
|
Milica Jovanoska Mitrevska, Viktor Mickovski, Todorka Samardzioska and Gino Iannace
Polyurethane foam (PUF) is an exceptionally adaptable product that has a variety of applications?it can be found almost everywhere. Due to such high utilization, the amount of polyurethane foam waste generated each year is growing over time. Rebonding po...
ver más
|
|
|
|
|
|
|
|
|
|
|
Zhou Fang, Lijin Huang and Junjie Fu
Graphene material has a variety of excellent properties and applications in energy storage, biomaterials, photoelectric devices, and other fields. With the progress of nanotechnology, graphene nanomaterials have shown their advantages in the field of new...
ver más
|
|
|
|
|
|
|
|
|
|
|
Manggar Arum Aristri, Muhammad Adly Rahandi Lubis, Sumit Manohar Yadav, Petar Antov, Antonios N. Papadopoulos, Antonio Pizzi, Widya Fatriasari, Maya Ismayati and Apri Heri Iswanto
|
|
|
|
|
|