Adhesion strength of tetrahydrofuran hydrates is dictated by substrate stiffness  

作　　者：Yan-Wen Lin Tong Li Yi Zhang Wei-Wei Yan Xiao-Ming Chen Zhi-Sen Zhang Jian-Yang Wu 

机构地区：[1]Department of Physics,Research Institute for Biomimetics and Soft Matter,Jiujiang Research Institute and Fujian Provincial Key Laboratory for Soft Functional Materials Research,Xiamen University,Xiamen,361005,Fujian,China [2]Key Laboratory of Marine Materials and Related Technologies,Zhejiang Key Laboratory of Marine Materials and Protective Technologies,Ningbo Institute of Materials Technology and Engineering,Chinese Academy of Sciences,Ningbo,315201,Zhejiang,China [3]Key Laboratory of Icing and Anti/De-icing,China Aerodynamics Research and Development Center,Mianyang,621000,Sichuan,China [4]Micro-and Nano-technology Research Center,State Key Laboratory for Manufacturing Systems Engineering,Xi’an Jiaotong University,Xi’an,710049,Shaanxi,China [5]Electronic Materials Research Lab,Key Laboratory of the Ministry of Education,Xi’an Jiaotong University,Xi’an,710049,Shaanxi,China [6]NTNU Nanomechanical Lab,Norwegian University of Science and Technology(NTNU),Trondheim,7491,Norway

出　　处：《Petroleum Science》2024年第1期667-673,共7页石油科学（英文版）

基　　金：This work is financially supported by the Key Laboratory of Icing and Anti/De-icing of CARDC(Grant No.IADL20210402);the National Natural Science Foundation of China(Grant Nos.12002350,12172314,11772278 and 11904300);the Jiangxi Provincial Outstanding Young Talents Program(Grant No.20192BCBL23029);the Fundamental Research Funds for the Central Universities(Xiamen University:Grant No.20720210025).

摘　　要：Understanding the hydrate adhesion is important to tackling hydrate accretion in petro-pipelines.Herein,the relationship between the Tetrahydrofuran(THF)hydrate adhesion strength(AS)and surface stiffness on elastic coatings is systemically examined by experimental shear force measurements and theoretical methods.The mechanical factor-elastic modulus of the coatings greatly dictates the hydrate AS,which is explained by the adhesion mechanics theory,beyond the usual factors such as wettability and structural roughness.Moreover,the hydrate AS increases with reducing the thickness of the elastic coatings,resulted from the decrease of the apparent surface elastic modulus.The effect of critical thickness for the elastic materials with variable elastic modulus on the hydrate AS is also revealed.This study provides deep perspectives on the regulation of the hydrate AS by the elastic modulus of elastic materials,which is of significance to design anti-hydrate surfaces for mitigation of hydrate accretion in petro-pipelines.

关 键 词：HYDRATE Adhesion strength Elastic modulus COATINGS 

分 类 号：TE5[石油与天然气工程—油气田开发工程]