Results 31 to 40 of about 7,414 (245)

Tribological modification data of Hydrogenated nitrile rubber Nanocomposites for water-lubricated bearing of ship stern shaft

, 2021
A water-lubricated rubber bearing (WLRB) of ship stern shaft often operates under harsh conditions, which requires a higher tribological performance for bearing materials.
wu, K (via Mendeley Data)
core   +1 more source

A study on mechanical properties of equal wall thickness rubber bushing of positive displacement motor based on hydrogenated nitrile butadiene rubber aging test

Petroleum, 2022
Shale gas production has become the main driver of global gas production growth. Deep shale gas is difficult to extract, which puts forward higher requirements for drilling speed increase. The downhole power drilling tools are mainly screw drilling tools.
Changshuai Shi, Xiaofeng Wan, Xiaohua Zhu, Kailin Chen   +3 more
doaj   +1 more source

"Hydrogenated nitrile rubber with different hydrogenation degrees prepared by solution hydrogenation method"

Hecheng xiangjiao gongye
Hydrogenated nitrile rubber with hydrogenation degree of 90%, 95% and 99% was prepared by solution hydrogenation of nitrile rubber with ruthenium catalyst, the effects of catalyst amount, solid rubber content and filling volume of reactor on ...
LI Wen-xina, LIU Ping-pingb, LI Lina, WANG Huia
doaj   +1 more source

Deposition and characterization of hydrogenated diamond-like carbon thin films on rubber seals [PDF]

, 2010
Thin films of hydrogenated diamond-like carbon (DLC) have been deposited on hydrogenated nitrile butadiene rubber (HNBR) for reduction of friction and enhancement of wear resistance of dynamic rubber seals.
Bui, X.L.,, Hosson, J.Th.M. De,, Hosson, J.Th.M. De, Pei, Y.T.,, Pei, Y.T., Bui, X.L.   +5 more
core   +1 more source

"Emulsifier-regulated synthesis of nitrile rubber and its catalytic hydrogenation in emulsion"

Hecheng xiangjiao gongye
The primary challenge in emulsion hydrogenation resides in maintaining emulsion stability under specific temperature and pressure conditions. This study proposed a strategy involving the incorporation of emulsifiers during the hydrogenation process to ...
GUO Zong-lei1 a, YU Ming-ming2, LI Yan-yan1 b, WANG Hui1 a, WANG Cheng-dong1 a
doaj   +1 more source

Comparative study on the sealing performance of packer rubber based on elastic and hyperelastic analyses using various constitutive models

Materials Research Express, 2022
Evaluation of the sealing performance of the packer rubber varies according to specific simulation models. This paper aims at revealing the difference between elastic and hyperelastic analyses using the finite element mothed (FEM). The study extracts the
Xuelin Dong, Zhiyin Duan
doaj   +1 more source

Sealing properties and structure optimization of packer rubber under high pressure and high temperature

Petroleum Science, 2019
During hydraulic fracturing operations of low-permeability reservoirs, packers are the key component to ensure the success of multistage fracturing. Packers enable sections of the wellbore to be sealed off and separately fractured by hydraulic pressure ...
Wen-Jian Lan, Han-Xiang Wang, Xin Zhang, Sheng-Shan Chen   +3 more
doaj   +1 more source

Water Permeates and Plasticizes Amorphous Carbon Dots: Unraveling the Inner Accessibility of the Nanoparticles by Glass Transition Studies

Advanced Materials, EarlyView.
The water permeability of amorphous carbon dots (CDs) is demonstrated by investigating their plasticization. Novel polyamide‐based and amorphous nanoparticles are synthesized by controlling their inner packing density. Water plasticization is evidenced by the decrease of the CDs glass transition temperature with increasing the hydration degree.
Elisa Sturabotti, Valerio Di Lisio, Lucia Cardo, Alessandro Camilli, Estela Moretón Alfonsín, Daniele Cangialosi, Amaia Iturrospe Ibarra, Arantxa Arbe, Maurizio Prato   +8 more
wiley   +1 more source

Preparation of in situ modified hydrogenated nitrile rubber with unsaturated carboxylic acid from biomass

Hecheng xiangjiao gongye
Zinc sorbate (ZDS) reinforced hydrogenated nitrile rubber was prepared using sorbic acid and zinc oxide as raw materials by in situ generation method, and the in situ reaction mechanism of sorbic acid and effect of zinc sorbate on physical and mechanical
XUE Ao-nan, LIU Da-chen, ZHU Bo-cong, XIAO Xiao-kun
doaj   +1 more source

Enhanced Photocatalytic H2O2 Production on Terpyridine‐Based Acrylonitrile‐Linked Covalent Organic Frameworks with Asymmetric Localized Electron Distribution

Advanced Materials, EarlyView.
Asymmetric localized electron distribution has been optimized in covalent organic frameworks to enhance *O2 adsorption and facilitate charge transfer, boosting photocatalytic two‐electron transfer oxygen reduction toward H2O2 production from water and air.
Qinglan Zhao, Mengmeng Ce, Hengtao Lei, Tianyun Jin, Zhipeng Xie, Yushen Liu, Shengyi Yang, Xinwen Ou, Mohammad Farhadpour, Song‐Zhu Kure‐Chu, Xuan‐He Liu, Liang Zhang, Jimmy C. Yu   +12 more
wiley   +1 more source