Results 41 to 50 of about 8,591 (213)

Investigating the thermal stability of 1-3 piezoelectric composite transducers by varying the thermal conductivity and glass transition temperature of the polymeric filler material [PDF]

open access: yes, 2002
The thermal behaviour of a number of 1-3 piezoelectric composite transducers is discussed. In particular, devices manufactured from a polymer filler with a relatively high glass to rubber transition temperature (T-g), and from polymer systems with ...
Benny, C.G.   +6 more
core   +1 more source

DMTA studies of polymer blends and compatibility

open access: yesPolymer Testing, 1988
Abstract Some aspects of the testing of polymer blends by Dynamic Mechanical Thermal Analysis (DMTA) are reported. Compatibility of the blend components, which has a major influence on physical properties, can be well characterised. Data are presented for various types of blends, both compatible and incompatible.
R.E. Wetton, P.J. Corish
openaire   +1 more source

Characterization of wood plastic composites using jackfruit wood sawdust in a PLA/HDPE blend

open access: yesJournal of Applied Science and Engineering
The shift toward a circular economy is driving the demand for bio-composites, offering sustainable alternatives to fossil-based materials. Incorporating wood sawdust, a byproduct of the wood industry, into biodegradable polymers enhances both cost ...
AnhTuan Phung   +4 more
doaj   +1 more source

Ion exchange membranes based upon crosslinked sulfonated polyethersulfone for electrochemical applications [PDF]

open access: yes, 2013
Synthesis and characterization of new ion exchange membranes made from chlorosulfonated polyethersul- fone (SO2Cl-PES) crosslinked by polyaminated crosslinking reagents have been performed.
FAUVARQUE, J.F   +5 more
core   +6 more sources

بررسی رفتار ویسکوالاستیک در رزین‌ها، پوشش‌های آلی و نانو کامپوزیت‌ها [PDF]

open access: yesمطالعات در دنیای رنگ, 2019
اغلب پوشش‌های آلی به‌دست آمده از تولید محصولات تجاری رنگ و پوشش، ویسکوالاستیک می‌باشند. مطالعه رفتار ویسکوالاستیک این پوشش‌ها بعد از پخت آنها یکی از آزمون‌های مهم است که اطلاعات مفیدی را در مورد عملکرد پوشش پخت شده در اختیار ما قرار می‌دهد.
داود قنبری   +2 more
doaj  

Ammonium Salts as Curing Agents to Obtain Ionic Epoxy Resins With a Thermoplastic‐to‐Thermoset Transition

open access: yesAdvanced Materials, EarlyView.
Ionic epoxy networks are prepared using ammonium salts as hardeners, leading to a two‐stage curing process with a thermoplastic‐like intermediate. This uncommon behavior enables extrusion and fabrication of thermoplastic prepregs that can be cured into thermoset composites.
Izabela Kurowska   +10 more
wiley   +1 more source

Least-Squares evaluation of DMT dissipation test data – some preliminary results [PDF]

open access: yesE3S Web of Conferences
The Flex method does not work if the DMTA total stress dissipation curve is non-monotonic or has no inflexion point. To overcome the problems, various versions of a mathematically precise DMTA total stress dissipation test evaluation method are suggested
Imre Emőke   +4 more
doaj   +1 more source

Development of polymer network of phenolic and epoxies resins mixed with linseed oil: pilot study [PDF]

open access: yes, 2010
Epoxy resin was mixed with phenolic resins in different percentages by weight. Composite 40/60 means the proportion by weight of epoxy resin is 40 percent. It was found that only composites 50/50 and 40/60 could be cured in ambient conditions. Dynamic
Cardona, F.   +3 more
core   +2 more sources

4D Printing of Magnetically Responsive Shape Memory Polymers: Toward Sustainable Solutions in Soft Robotics, Wearables, and Biomedical Devices

open access: yesAdvanced Science, EarlyView.
Merging 4D printing with magneto‐responsive shape memory polymers opens new avenues for intelligent, reconfigurable systems. This review navigates cutting‐edge fabrication techniques, magnetic fillers, and smart polymer matrices, unveiling their potential in soft robotics, biomedical devices, and wearable tech.
Kiandokht Mirasadi   +7 more
wiley   +1 more source

Augmenting DMTA using predictive AI modelling at AstraZeneca

open access: yesDrug Discovery Today
Design-Make-Test-Analyse (DMTA) is the discovery cycle through which molecules are designed, synthesised, and assayed to produce data that in turn are analysed to inform the next iteration. The process is repeated until viable drug candidates are identified, often requiring many cycles before reaching a sweet spot. The advent of artificial intelligence
Gian Marco Ghiandoni   +4 more
openaire   +2 more sources

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