Results 21 to 30 of about 28,272 (269)

Application progress of ionic liquid modified graphene in rubber

open access: yesHecheng xiangjiao gongye, 2022
The modification methods of ionic li-quid on graphene in recent years were reviewed. The application status and progress of ionic liquid modified graphene in improving mechanical properties, thermal stability, electrical conductivity, thermal ...
KAN Ming-zhu; ZHENG Long; XU Zong-chao; LIU Li; WEN Shi-peng
doaj   +1 more source

Novel Green resource material: Eucommia Ulmoides Gum

open access: yesResources Chemicals and Materials, 2022
Eucommia ulmoides gum (EUG), main composition is trans-1,4-polyisoprene, is a natural polymer extracted from Eucommia ulmoides plant tissue. Benefiting from the crystallization ability and rubber-plastic duality, it can be applied to a variety of fields,
Donghan Li   +7 more
doaj   +1 more source

Silica Surface-Modification for Tailoring the Charge Trapping Properties of PP/POE Based Dielectric Nanocomposites for HVDC Cable Application

open access: yesIEEE Access, 2020
This paper focuses on novel insulation polypropylene/poly(ethylene-co-octene) (PP/POE) nanocomposites for High Voltage Direct Current (HVDC) cable application.
Xiaozhen He   +8 more
doaj   +1 more source

Stress-strain behavior and corresponding crystalline structures of four types of polyethylene under a wide range of strain rates

open access: yesPolymer Testing, 2022
Stress-strain behavior of four types of polyethylene (PE), i.e. low-density polyethylene (LDPE), linear low-density polyethylene (LLDPE), medium-density polyethylene (MDPE) and high-density polyethylene (HDPE), under a wide strain rate ranging from 0.001
Tiange Zhu   +5 more
doaj   +1 more source

A Numerical–Experimental Approach for Multi‐Matrix Fiber‐Reinforced Plastics Characterization Using Finite Element Model Updating

open access: yesAdvanced Engineering Materials, EarlyView.
A numerical–experimental framework is developed for characterizing multi‐matrix fiber‐reinforced polymers (MM‐FRPs) combining epoxy and polyurethane matrices. Harmonic bending tests are integrated with finite element model updating (FEMU) to simultaneously identify elastic and viscoelastic material parameters.
Rodrigo M. Dartora   +4 more
wiley   +1 more source

Eucommia Ulmoides Gum Soft‐Hard Gradient Composite Materials with Shape Memory Property

open access: yesMacromolecular Materials and Engineering
Eucommia Ulmoides gum (EUG) is a natural polymer material with unique “rubber‐plastic duality” and good shape memory properties. In this paper, the hardness of EUG is greatly reduced by adjusting the cross‐linking density and adding physical microspheres
Furao Wang   +6 more
doaj   +1 more source

Evaluation of Different Methods for Determining the Entrance Pressure Drop in Capillary Rheometry

open access: yesApplied Rheology, 2008
Two approaches for determining the entrance pressure drop in capillary rheometry were compared with low-density polyethylene and polystyrene melts as test fluids. Direct measurements with the orifice die were found to yield higher values for the entrance
Aho Johanna, Syrjälä Seppo
doaj   +1 more source

Air‐Pressure–Actuated Vibroacoustic Metamaterial With Tunable Bandgap: Design, Modeling, and Characterization

open access: yesAdvanced Engineering Materials, EarlyView.
This article presents the design, modeling, and characterization of air‐pressure–actuated programmable vibroacoustic metamaterials (PVAMM). The study focuses on leveraging air pressure to dynamically tune resonance frequencies for effective noise attenuation.
William Kaal   +2 more
wiley   +1 more source

Influence of storage time and amplitude sweeps on flocculation behavior in silica-filled SSBR compounds

open access: yesDiscover Polymers
The Payne effect reflects the breakdown of filler-filler networks in rubber compounds, particularly in silica-filled systems. However, during storage, time-dependent flocculation of silica clusters leads to an increase in storage modulus, thereby ...
Anmol Aggarwal   +3 more
doaj   +1 more source

Volume changes measurement of elastomers using 3D DIC

open access: yesActa Polytechnica CTU Proceedings, 2023
The presented research aims at measuring the volume changes of elastomers using digital image correlation (DIC) in the 3D configuration (stereo DIC). The deformation measurement method in stereo configuration was applied during the mechanical testing of
Barbora Kotlánová   +3 more
doaj   +1 more source

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