Results 41 to 50 of about 3,585 (201)

Effect of waste zinc oxide particles on properties of natural rubber vulcanizates

open access: yeseXPRESS Polymer Letters, 2023
Natural rubber (NR) vulcanizates with waste zinc oxide (ZnO) particles were prepared through a sulfur vulcanization process. This research aimed to investigate the effect of different ZnO sources as an activator: commercial ZnO (ZO), waste ZnO obtained ...
Dusadee Tumnantong   +2 more
doaj   +1 more source

Chemically Programmable Underwater Sound‐Absorbing Metamaterial via MXene Self‐Assembly

open access: yesAdvanced Science, EarlyView.
MXene self‐assembly creates a chemically programmable underwater metamaterial with quasi‐periodic layers and a chemical‐physical multi‐level constraint system. A crosslinker as a ‘chemical scissor’ precisely edits microscopic interactions, exciting deep‐subwavelength strong local resonances that induce near‐zero/negative effective bulk modulus (Keff ...
Ziwen Gan   +5 more
wiley   +1 more source

A Sustainable Bio‐Based Epoxy Thermoset as a High‐Performance Alternative to BPA‐Based Resins

open access: yesAdvanced Science, EarlyView.
A rigid–flexible bio‐based epoxy network integrates soybean oil, lignin, and maleic anhydride to overcome the strength–toughness–sustainability trade‐off of conventional BPA epoxy. The thermoset delivers excellent performance as both a structural adhesive and a matrix for glass‐fabric composites, while enabling pH‐responsive degradation, environmental ...
Jiyun Qi   +4 more
wiley   +1 more source

"Influence of metal dual surface materials on aging resistance of nitrile rubber sealing rings"

open access: yesHecheng xiangjiao gongye
Nitrile rubber O-rings suitable for different working conditions were prepared using different vulcanization systems and plasticizer amounts with nitrile rubber as substrate, and the effects of three kinds of metal material dual surface, copper, iron and
LUO Xu-nian1, Lü Bo1, HE Xiao-gang1, WANG Ye1, ZHAO Chun-guang1, ZHANG Xu-lin2
doaj   +1 more source

Pembuatan karet riklim dari ban bekas dengan microwave ditinjau dari karakteristik vulkanisasi kompon

open access: yesMajalah Kulit, Karet, dan Plastik, 2004
The research is aimed to study the effect of heat of microwave in the preparation of reclaimed rubber from used tire and the application of rubber compound observed from the characteristics of its vulcanization.
Rumpoko Wicaksono   +2 more
doaj   +1 more source

One century of teaching, research, and innovation in chemical engineering in Mexico: The role of chemical engineering in the background and future of polymer science and industrial production in Mexico

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
Timeline of key academic milestones and individuals that shaped chemical engineering at FQ‐UNAM and in Mexico. Abstract One hundred years after the beginning of the teaching of Chemical Engineering in Mexico, which started in 1925 in the former National School of Chemical Sciences, currently Faculty of Chemistry (FQ) at National Autonomous University ...
Patricia Pérez‐Salinas   +2 more
wiley   +1 more source

"Effects of different vulcanization systems on properties of bio-based poly(di-n-butyl itaconate-co-butadiene) rubber"

open access: yesHecheng xiangjiao gongye
The effects of conventional vulcanization (CV) system, semi-effective vulcanization (SEV) system, effective vulcanization (EV) system, peroxide 1,3-bis(tert-butylperoxyisopropyl) benzene (BIBP)/triallyl isocyanurate (TAIC) vulcanization system, and ...
HAN Ju1,2, HAO Fu-lan1,2, ZHAO Chun-cai1,2, NIU Chun-liang1,2, ZHENG Hong-bing1,2
doaj   +1 more source

Achievement of Transition Metal Chalcogenides/Oxides in Hydrogen Production by Seawater Electrolysis

open access: yesEcoEnergy, EarlyView.
Transition metal chalcogenides (TMCs)/oxides have shown great application potential in seawater splitting for hydrogen generation due to their adjustable electronic properties, abundant active sites, and excellent catalytic performance. ABSTRACT Under the impetus of global “dual carbon” goals, green hydrogen has become a key component of the future ...
Xiaohui Du, Xinyu Li, Jianna Li, Tao Sun
wiley   +1 more source

Effects of different vulcanization systems on electromagnetic shielding effectiveness of Eucommia ulmoides gum composites

open access: yesHecheng xiangjiao gongye
The effects of common vulcanization (CV) system, semi-effective vulcanization (SEV) system, effective vulcanization (EV) system, and dicumene peroxide (DCP) vulcanization system on the mechanical properties and electromagnetic shielding effectiveness of ...
HE Zhi-hao, KANG Hai-lan, HAN Li-shuo, CAI Nian-zhi, LIU Hong-chi, FANG Qing-hong
doaj   +1 more source

Structural evolution during inverse vulcanization

open access: yesNature Communications
Inverse vulcanization exploits S8 to synthesize polysulfides. However, evolution of products and its mechanism during inverse vulcanization remains elusive.
Botuo Zheng   +7 more
doaj   +1 more source

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