Results 81 to 90 of about 90,256 (356)

Fluorine containing polyurethane [PDF]

, 1969
A polyurethane polymer prepared by reacting a hydroxy-terminated polyformal with an organic diisocyanate is ...
Trischler, F. D.
core   +1 more source

Cyclic Olefin Copolymers as Versatile Materials for Advanced Engineering Applications

Advanced Functional Materials, EarlyView.
Cyclic olefin copolymers (COCs) are presented as highly versatile materials combining tunable synthesis, excellent optical properties, and mechanical robustness. Their potential spans microfluidics, bioengineering, and advanced electronics, while emerging self‐healing and sustainable solutions highlight future opportunities.
Giulia Fredi, Norma Mallegni, Andrea Dorigato, Mario Milazzo   +3 more
wiley   +1 more source

Green polyurethanes from bio-based building blocks: Recent advances and applications

Green Synthesis and Catalysis
Polyurethanes (PUs) are among the most studied, manufactured, and employed polymers due to their versatility and wide range of applications. However, their synthesis generally relies on toxic, non-renewable, and harmful petroleum-based chemicals.
Filippo Campana, Giulia Brufani, Francesco Mauriello, Rafael Luque, Luigi Vaccaro   +4 more
doaj   +1 more source

Thermoplastic Polyurethane Blends With Thermal Energy Storage/Release Capability

Frontiers in Materials, 2018
In this work innovative thermal energy storage materials were developed by encapsulating a paraffin having a melting temperature of 6°C (M6D) in a thermoplastic polyurethane (TPU), and the most important physical properties of the resulting samples were ...
Andrea Dorigato, Daniele Rigotti, Alessandro Pegoretti   +2 more
doaj   +1 more source

Silicified Wood‐Inspired, High‐Strength Fire‐Resistant Chitin‐Based Aerogels for Sustainable High‐Temperature Thermal Insulation

Advanced Functional Materials, EarlyView.
Inspired by natural silicified wood, a biomimetic mineralized chitin‐derived aerogel is constructed. It can withstand 81 000 times its own weight, and its backside temperature is 130.4°C after exposure to ∼1300°C butane flame for 600 s, exhibiting high‐strength, fire‐resistance, and super thermal‐insulation properties.
Kai Xu, Qihang Lv, Lubin Liu, Zhezhe Zhou, Chentao Yan, Ao Qin, Jianting Ma, Shuhui Liang, Yue Xu, Min Hong, Bin Li, Pingan Song   +11 more
wiley   +1 more source

Gaya belajar pelajar tingkatan lima aliran perdagangan di lima buah sekolah menengah teknik : suatu kajian [PDF]

, 2004
Kajian ini mengenal pasti gaya belajar Visual, Auditori dan Kinestetik pelajar tingkatan lima aliran perdagangan di lima buah sekolah menengah teknik.
Abd Rahman, Mohd Faizal
core  

Influence of different polishing materials in the material removal of steel samples [PDF]

, 2018
The quality of injection moulded polymer optic parts depends on the surface finish of the respective mould. In order to improve and control the surface finish of the mould it is important to be able to keep the material removal constant during the ...
Almeida, Rui, Borret, Rainer, DeSilva, Anjali K.M., Harrison, David K.   +3 more
core   +2 more sources

Texoskeletons: Developing the Fundamental Technologies for Creating Intelligent Soft Robotic Clothing With Integrated 1D Sensors and Actuators

Advanced Functional Materials, EarlyView.
ABSTRACT Traditional wearable exoskeletons rely on rigid structures, which limit comfort, flexibility, and everyday usability. This work introduces the fundamental technologies to create the first soft, lightweight, intelligent textile‐based exoskeletons (Texoskeletons) built using 1D sensors and actuators.
Amy Lukomiak, Rameesh Bulathsinghala, Jack Varga, Shuxin Meng, Kalana Marasinghe, Imaad Refai, Biyon Fernando, Amitkumar Patel, Chamika M. Halloluwa‐Arachchige, Carlos Oliveira, Arash M. Shahidi, Zahra Rahemtulla, Alexander Turner, Ziyun Ding, Bernard X. W. Liew, Andy Kerr, Ezio Preatoni, Theo Hughes‐Riley, Ishara Dharmasena, Pasindu Lugoda   +19 more
wiley   +1 more source

Sustainable Synthesis of Polyurethane Using Hydroxyl‐Terminated Polybutadiene (HTPB) Derived From the Degradation of Butadiene Rubber with Fatty Alcohol

Macromolecular Materials and Engineering
Polyurethane (PU) is one of the most commonly used plastics, typically synthesized from diisocyanates and polyols derived from non‐renewable or unsustainable sources.
Manuel Burelo, Cecilia D. Treviño‐Quintanilla, Jonathan E. De laPeña‐González, Edgar A. Franco‐Urquiza, Enrique Martínez‐Franco, Gabriel Luna‐Bárcenas, Diego A. Bravo‐Alfaro, Alice Y. Yau, Thomas Stringer   +8 more
doaj   +1 more source

Biomaterial based novel polyurethane adhesives for wood to wood and metal to metal bonding

Materials Research, 2009
Polyurethane adhesives made from synthetic chemicals are non-biodegradable, costly and difficult to find raw materials from local market. To avoid solid pollution problem, cost effectiveness and easy availability of raw materials, biomaterials based ...
Mitesh Ramanlal Patel, Jignesh Markandray Shukla, Natvarbhai Khodidas Patel, Ketan Haribhai Patel   +3 more
doaj   +1 more source