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Polymers, 2022 Dressings made with polyurethanes have been found to exhibit good and varied biological properties that make them good candidates for this application. However, as has been seen, the wound-healing process is complex, which includes four different stages.
M. Morales-González +3 more
semanticscholar +1 more source
Quantification and Visualization of Fungal Degradation of Polyurethane Foam in Homes [PDF]
, 2020 People spend 90% of their time in the indoor environment including homes. Homes contain many exposures that can cause harm to human health, and one harmful exposure potentially comes from the degradation of polyurethanes.
Campbell, Iona
core
Polyurethane Foams: Past, Present, and Future
Materials, 2018 Polymeric foams can be found virtually everywhere due to their advantageous properties compared with counterparts materials. Possibly the most important class of polymeric foams are polyurethane foams (PUFs), as their low density and thermal conductivity
N. Gama +2 more
semanticscholar +1 more source
Polymers, 2021 Polyurethanes and polyurethane-ureas, particularly their water-based dispersions, have gained relevance as an extremely versatile area based on environmentally friendly approaches. The evolution of their synthesis methods, and the nature of the reactants
A. Santamaria-Echart +4 more
semanticscholar +1 more source
Mechanical Properties of Medical Bandage with Different Polyester/Polyurethane Ratios
Nantong Daxue xuebao. Ziran kexue ban, 2020 With polyester and polyurethane filaments as raw materials, different medical bandages are produced with different polyester/polyurethane ratios(polyester/polyurethane ratios are 1∶0, 1∶1, 1∶2, 1∶9). The basic properties and mechanical properties of each
CHENG Ran ZHANG Yu WANG Hailou
doaj +1 more source
Shape Memory Effect and Properties Memory Effect of Polyurethane [PDF]
, 2013 The relationship between shape and properties memory effect, especially viscoelastic properties of polyurethane under study is the main aim of this research work.
BOCQUET, Michel +4 more
core +5 more sources
Preparation of Polyether Ester Polyols and their Application in Hydrophilic Foam
Pige Kexue Yu GongchengNovel polyether ester polyols (PGA) containing ester bonds were prepared by esterification-polycondensation reaction using polyethylene glycols and adipic acid as raw materials.
Yongsheng GUO +4 more
doaj +1 more source
Effects of ultrasound on polymeric foam porosity [PDF]
, 2008 A variety of materials require functionally graded cellular microstructures whose porosity is engineered to meet specific applications (e.g. mimic bone structure for orthopaedic applications; fulfil mechanical, thermal or acoustic constraints in ...
Blitz +23 more
core +2 more sources
Material Flows of Polyurethane in the United States.
Environmental Science and Technology, 2021 Today, polyurethanes are effectively not recycled and are made principally from nonrenewable, fossil-fuel-derived resources. This study provides the first high-resolution material flow analysis of polyurethane flows through the U.S.
Chao Liang +7 more
semanticscholar +1 more source
Journal of Materials Research and Technology, 2022 This paper studied the synthesis of polyurethane modified epoxy via simultaneous reaction by varying the reaction time to 30, 60, and 90 min. The polypropylene glycol and tolonate as polyurethane components were reacted simultaneously with epoxy in the ...
Evi Triwulandari +5 more
doaj +1 more source