Results 231 to 240 of about 744,459 (413)

Properties of two composite materials made of toughened epoxy resin and high-strain graphite fiber [PDF]

open access: yes
Results are presented from an experimental evaluation of IM7/8551-7 and IM6/18081, two new toughened epoxy resin, high strain graphite fiber composite materials.
Dow, Marvin B., Smith, Donald L.
core   +1 more source

Hydrolyzable Bio‐Based Bisphenols Enabled by the Tishchenko Reaction for Polyurethane Vitrimers with Closed‐Loop Recyclability

open access: yesAdvanced Science, EarlyView.
This study employs the Tishchenko coupling reaction to obtain bio‐based bisphenols containing degradable ester bonds with 100% atom utilization. Based on these bio‐based bisphenols, a fully bio‐based polyurethane Covalent Adaptable Networks are constructed, while simultaneously endowing the material with closed‐loop recyclability, degradability, and ...
Jiewen Wang   +7 more
wiley   +1 more source

Aerial Track‐Guided Autonomous Soft Ring Robot

open access: yesAdvanced Science, EarlyView.
Controlling motion paths in soft active material‐based robots is challenging due to their inherently high degrees of freedom. Inspired by aerial trams, a new class of autonomous, track‐guided soft robots composed of twisted liquid crystal elastomer rings are reported.
Fangjie Qi   +4 more
wiley   +1 more source

Research on the Thermal Aging Characteristics of Cured Epoxy Resin Insulating Materials for DC Bushings. [PDF]

open access: yesPolymers (Basel)
Liu D   +8 more
europepmc   +1 more source

From Ancient Techniques to Modern Solutions: In Situ Synthesis of C‐S‐H for Sandstone Conservation

open access: yesAdvanced Science, EarlyView.
Herein, this work presents a paleo‐inspired approach to synthesizing and optimizing C‐S‐H‐based grouting mortars for conserving the sandstone of Beishan Grottoes, Dazu Rock Carvings, China. By achieving an optimal recipe compatible with natural sandstone, this work demonstrates the pivotal role of hydrogen bonding in the adhesion between C‐S‐H mortars ...
Mengjun Jia   +9 more
wiley   +1 more source

EXPERIMENTAL STUDY OF THE UTILIZATION OF PINEAPPLE LEAF FIBER WITH THE ADDITION OF EPOXY RESIN TO THE TENSILE STRENGTH BREAK OF THE CONCRETE

open access: yesLogic
In its development, many new concrete modifications were found, such as lightweight concrete, fiber concrete, polymer concrete, high-strength concrete and ultra-high-strength concrete.
Sartika Nisumanti Sartika   +2 more
doaj  

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