Results 31 to 40 of about 14,133 (206)

Effect of natural extract from waste corn meal on stabilization of natural rubber

open access: yesSPE Polymers, 2021
Natural rubber (NR) consists of rubber and non‐rubber components. Under prolonged storage, non‐rubber components of NR promote network or gel formation and increase Mooney viscosity, a phenomenon otherwise known as the storage hardening phenomenon ...
Khwanchat Promhuad   +2 more
doaj   +1 more source

"Effects of Mooney viscosity and mass fraction of bound acrylonitrile on mechanical properties and degree of swelling of nitrile rubber 3604 and 2707"

open access: yesHecheng xiangjiao gongye, 2023
The effects of Mooney viscosity (MV) of raw rubbers and mass fraction of bound acrylonitrile (wAN) of nitrile rubber (NBR) 3604 and NBR 2707 on tensile strength (Ts), elongation at break (Eb) and degree of swelling (Ds) of the vulcanizates were studied ...
ZHANG Shou-han,XIAO Ye,LI Tie-zhu
doaj   +1 more source

Polarized cortical tension drives zebrafish epiboly movements [PDF]

open access: yes, 2016
The principles underlying the biomechanics of morphogenesis are largely unknown. Epiboly is an essential embryonic event in which three tissues coordinate to direct the expansion of the blastoderm.
Amayra Hernández‐Vega   +13 more
core   +2 more sources

Tools for multiaxial validation of behavior laws chosen for modeling hyper-elasticity of rubber-like materials [PDF]

open access: yes, 2002
We present an experimental approach to discriminate hyper-elastic models describing the mechanical behavior of rubber-like materials. An evaluation of the displacement field obtained by digital image correlation allows us to evaluate the heterogeneous ...
Alexander   +16 more
core   +3 more sources

Rewriting Polymer Fate via Chemomechanical Coupling

open access: yesAdvanced Materials, EarlyView.
This work introduces a life‐like “living” polymer platform that can grow, degrow, and reprogram its properties after fabrication. By integrating mass transport, reversible polymerization, and controlled catalysis, the material achieves on‐demand changes in size, shape, and mechanical properties.
Jiahe Huang   +9 more
wiley   +1 more source

Rubber Material Properties of Several Rubber Tree Strains [PDF]

open access: yesE3S Web of Conferences, 2019
:The rubber from rubber tree strain reyan 8-79 (hainan), zhanshi 218-6 (guangdong), yunyan 73-46 and yunyan 75-11 (yunnan) were tested to determine the physical and chemical properties, processing properties of raw rubber and physical and mechanical ...
Kaidian Wang   +5 more
doaj   +1 more source

Influence of benzyl esters of vegetable oils on curing, mechanical and dynamic properties of silica filled natural rubber and styrene-butadiene rubber compounds

open access: yeseXPRESS Polymer Letters, 2022
Benzyl ester oils (BEO) were prepared by esterification of fatty acids from three different types of vegetable oils, i.e., coconut, palm, and soybean oils using benzyl alcohol in the presence of an acid catalyst.
Azizon Kaesaman   +3 more
doaj   +1 more source

Hard‐Magnetic Soft Millirobots in Underactuated Systems

open access: yesAdvanced Robotics Research, EarlyView.
This review provides a comprehensive overview of hard‐magnetic soft millirobots in underactuated systems. It examines key advances in structural design, physics‐informed modeling, and control strategies, while highlighting the interplay among these domains.
Qiong Wang   +4 more
wiley   +1 more source

Modification of nitrile rubber 2980 with liquid nitrile rubber YN 25

open access: yesHecheng xiangjiao gongye
Nitrile rubber (NBR) 2980 M was prepared by mechanical blending of liquid nitrile rubber (YN 25) into NBR 2980. The effect of YN 25 addition ratio on the Mooney viscosity, hardness, vulcanization characteristics of NBR 2980 M compound, and tensile ...
ZHANG Shou-han,GUO Zhi-rong, CUI Guo-feng, WANG Feng-le
doaj   +1 more source

Avaliação de clones de borracha natural crua por ensaios padrão e análise dinâmico-mecânica Evaluation of clones of the raw natural rubber by standard test and dynamic mechanical properties

open access: yesPolímeros, 2006
A qualidade do látex de borracha natural (Hevea brasiliensis) de diferentes clones (RRIM 600, IAN 873, GT 1, PB 235), uma mistura destes clones e uma borracha comercial foi avaliada por ensaios padrões (plasticidade Wallace, PRI, viscosidade Mooney, % de
Ana C. Dall'Antonia   +6 more
doaj   +1 more source

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