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Review:Progress in Core-shell Rubber Particles for Efficiently Toughening Resins 被引量:1
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作者 Xin-Gui Li Xiong Wang +3 位作者 Mei-Rong Huang Yue-Shan He Fei Liu Wei-Hong Xu 《Journal of Harbin Institute of Technology(New Series)》 CAS 2022年第6期34-63,共30页
Core-shell toughening particles are structured composite particles consisting of generally two different components, one at the center as a rubbery elastic core and surrounding by the second as a glassy inelastic shel... Core-shell toughening particles are structured composite particles consisting of generally two different components, one at the center as a rubbery elastic core and surrounding by the second as a glassy inelastic shell. The design, preparation, and application of core-shell polymer particles have been briefly reviewed. Morphological characteristics of the core-shell particles by transmission electron microscopy(TEM) and scanning electron microscopy(SEM) are focused. The vital factors that are useful to control core-shell morphology and toughening properties including core-shell monomer species, polymerization conditions, cross-linking reagents, synthetic method, and post-processing techniques are analyzed. Distinguished properties are mainly considered as the most desirable features that endow core-shell polymer particles with various applicabilities, particularly as effectively toughening components in brittle epoxy resin and polylactide that are substrate of copper clad laminate widely used in the modern electronic world and environmentally friendly materials that are useful as packaging films, disposable tableware, biomedical equipment, and new energy vehicles. 展开更多
关键词 core-shell particle rubbery core glassy shell brittle resin toughening epoxy resin electronic material
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A STUDY ON THE TOUGHENING OF EPOXY RESIN BY HTBN-EPOXY RESIN PRECOPOLYMER
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作者 Xiao Zu HAN Fen Chun GUO Changchun Institute of Apptied Chemistry,Academia Sinica,Changchun,130022 Zhan Kui YUN Guiyang Research and Design Institute of Chemical Industry,Guiyang,550002 《Chinese Chemical Letters》 SCIE CAS CSCD 1991年第9期739-740,共2页
A novet toughened epoxy resin was obtained by using a precopotymer of epoxy resin and hydroxy-terminated butadiene-acrylonitrile copolymer(HTBN)and amine curing agent.The cured toughened resin has excellent mechanical... A novet toughened epoxy resin was obtained by using a precopotymer of epoxy resin and hydroxy-terminated butadiene-acrylonitrile copolymer(HTBN)and amine curing agent.The cured toughened resin has excellent mechanical properties due to the two-phase structure,which has been observed from SEM and TEM. 展开更多
关键词 HTBN A STUDY ON THE toughening OF EPOXY resin BY HTBN-EPOXY resin PRECOPOLYMER CTBN
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Development of self-generated proppant based on modified low-density and low-viscosity epoxy resin and its evaluation 被引量:2
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作者 Jia-Cheng Fan Zhan-Qing Qu +6 位作者 Tian-Kui Guo Ning Qi Ming Chen Jian Hou Ji-Jiang Ge Xiao-Qiang Liu Ji-Wei Wang 《Petroleum Science》 SCIE CAS CSCD 2022年第5期2240-2252,共13页
Hydraulic fracturing is a critical technology for the economic development of unconventional oil and gas reservoirs.The main factor influencing fracture propping and reservoir stimulation effect is proppant performanc... Hydraulic fracturing is a critical technology for the economic development of unconventional oil and gas reservoirs.The main factor influencing fracture propping and reservoir stimulation effect is proppant performance.The increasing depth of fractured oil and gas reservoirs is causing growing difficulty in hydraulic fracturing.Moreover,the migration of conventional proppants within the fracture is always limited due to small fracture width and rigid proppant structure.Thus,proppants with good transportation capacity and fracture propping effects are needed.First,a novel self-generated proppant based on toughened low-viscosity and low-density epoxy resin was developed to satisfy this demand.Then,proppant performances were evaluated.Low-viscosity and low-density epoxy resin was generated when the thiol-ene click chemical reaction product of eugenol and 1-thioglycerol reacts with the epichlorohydrin.Then,the resin was toughened with graphite particles to increase its compressive strength from50.8 to 72.1 MPa based on micro-cracking mechanism and crazing-nail anchor mechanism.The adduct of diethylene triamine and butyl glycidyl ether and the Si O2 nanoparticles were treated as the curing agent and emulsifier respectively to form the emulsion.The emulsion is transformed into solid particles of various sizes within a reservoir to prop the fracture.Evaluation shows good migration capacity of this self-generated proppant due to the low density of epoxy resin. 展开更多
关键词 Low-viscosity and low-density epoxy resin resin toughening Self-generated proppant Performance evaluation
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Reaction-induced phase separation in rubber-modified epoxy resin 被引量:1
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作者 张剑文 张红东 +2 位作者 严栋 周红卫 杨玉良 《Science China Chemistry》 SCIE EI CAS 1997年第1期15-23,共9页
The phase separation mechanism,and structure development during curing of epoxy with a novel liquid rubber-ZR were investigated by time-resolved light scattering,optical microscope and differential scanning calonmetry... The phase separation mechanism,and structure development during curing of epoxy with a novel liquid rubber-ZR were investigated by time-resolved light scattering,optical microscope and differential scanning calonmetry (DSC) The mixture loaded with curing agent was a single-phase system in the early stage of curing.When the cure reaction proceeded,phase separation took place via the spinodal decomposition induced by polymerization of epoxy resin.This was supported by the characteristic change of light scattering profile with curing time.Cure reaction plays an important role in the progress of phase separation.The bigger the cure reaction rate is,the longer periodic distance will be.The overall two-phase structure was basically locked in when the conversion approached 80% estimated by DSC,and finally the co-continuous two-phase structure was successfully obtained. 展开更多
关键词 polymerization-induced phase separation rubber toughened epoxy resin light scattering curing kinetics
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