简介：Afacilemethodforthesynthesisofsilver-silica（Ag-SiO2）Janusparticleswithfunctionalitiessuitablefortextileapplicationsisreported.SilicananoparticlespreparedbytheStobermethodwerefunctionalizedwithepoxy,amine,andthiolgroups,whichwereconfirmedbyFouriertransforminfraredanalysis.ThefunctionalizedsilicananoparticleswereusedtoproducePickeringemulsions,andtheexposedsurfacewasusedfortheattachmentofsilvernanoparticles（AgNPs）viathelow-temperaturechemicalreductionmethod.ThemorphologyandstructureoftheAg-SiO2Janusparticleswerecharacterizedbyscanningelectronmicroscopy,scanningtransmissionelectronmicroscopy,high-resolutiontransmissionelectronmicroscopy,energy-dispersiveX-rayanalysis,andUV-visspectroscopy.Becauseoftheirspecificfunctionalities,theseAg-SiO2Janusparticlesareproposedforapplicationsontextilesubstrates,astheycanovercomeseveraldrawbacksofdirectapplicationofAgNPsontextiles,suchasleaching,agglomeration,andinstabilityduringstorage.

简介：Epoxyresin/Ni@Cnanoparticlecompositeswithalignedmicrostructurewerepreparedbyusingaprocedureofmagneticfieldassistedcuring.Theresultsshowthattheresistivityofcompositesexhibitsnegativetemperaturecoeffcient(NTC)effectaboveroomtemperature,andcanbeadjustedbyvaryingthecontentfillerandthemagnitudeofmagneticfieldapplied.Hill'squantumtunnelingmodelwasmodifiedtounderstandtheelectricalconductionmechanisminthecomposites.ItshowsthattheNTCeffectascribestothedominantthermalactivatedtunnelingtransportofelectronacrossadjacentnanoparticles,aswellasthelowthermalexpansivityofepoxyresinmatrix.

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简介：部分涂的碳钢的腐蚀行为被盐水花测试调查并且扫描凯尔文探查(SKP)以便在海洋的空气环境理解涂的碳钢的长期的腐蚀行为。局部性的腐蚀被SKP精确地描绘在涂并且uncoated区域。SKP结果证明次潜力与测试时间变化了，并且越多腐蚀产品，越多积极潜力。边线在之间涂并且部分涂的钢的uncoated区域与增加测试时间向涂的方面变了。涂层disbonding率能根据SKP测量的潜在的边线的移动被决定。在NaCl盐水花的部分涂的钢的腐蚀机制根据潜在的地图和腐蚀形态学被讨论。

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简介：Epoxy/graphenenanoplatelets(GNP)粉末涂层用GNP和融化混合挤出方法的超声的predispersion被制作。epoxy/GNPs粉末涂层的等温的治好动力学借助于即时Fourier变换被监视有一个加热房间的红外线的光谱学(英尺红外)。epoxy/GNPs的机械性质治好涂层被调查了，由评估他们有扫描在three-point-bending测试以后的电子显微镜学(FE-SEM)的地排放的破裂表面。epoxy/GNPs的热稳定性治好涂层被thermo-gravimetric分析(TGA)学习。等温的治好动力学结果证明GNP不影响自动催化的反应机制，但是在玩的1.0wt%添加剂下面装载GNP在治好epoxy/GNPs粉末涂层的一个提示角色。破裂紧张，破裂坚韧和epoxy/GNPs的影响抵抗治好在装载的GNP(1wt%)的底层戏剧性地增加的涂层，显示GNP能改进epoxy/GNPs粉末涂层的坚韧。从破裂表面的FE-SEM研究，而且，epoxy/GNPs的可能的韧化机制治好涂层被建议。TGA结果证明GNP的加入改进了治好的涂层的热稳定性。因此，GNP修改了环氧基树脂能是一条有效途径与改进他们的热稳定性一起韧化环氧基树脂粉末涂层。

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简介：ThedistributedopticalfibersensingtechnologywasusedtoinvestigatethefracturebehavioroftheEpoxyAsphaltMixture.Thespatialdistributionandvariationofthestraindevelopmentwithcrackpropagationwereacquiredusingthebrillouinopticaltime-domainreflectometerthroughtheloadingexperimentsofthecompositebeamstructure.Inaddition,afiniteelementmodelofthecompositebeamstructurewasdevelopedtoanalyzethemechanicalresponsesoftheepoxyasphaltmixtureusingtheextendedfiniteelementmethod.Theexperimentalresultsshowthatthedevelopmentofcrackpropagationbecomesinstablewiththeincreaseoftheload,andlargerloadswillgeneratedeepercracks.Moreover,thenumericalresultsshowthatthemechanicalresponseofthecracktipchangeswiththecrackpropagation,andtheworstareasthatsubjectedtocrackdamagearelocatedonbothsidesofthecompositebeamstructure.

简介：Thecorrosionfatiguebehaviorofepoxy-coatedMg–3Al–1Znalloywasinvestigatedinairand3.5wt%NaClsolution.Epoxycoatingasanewmethodwasusedtoimprovethecorrosionfatiguepropertyofthematerial.Resultsshowthatthefatiguelimit(FL)ofthecoatedspecimensishigherthanthatoftheuncoatedspecimensin3.5wt%NaClsolutionbecauseofthestrengtheningandblockingfunctionsoftheepoxycoating.TheFLofthecoatedspecimensin3.5wt%NaClsolutionisashighasthatinair.Itimpliesthatthecoatedspecimensarenotassensitivetotheenvironmentasthemagnesiumalloy.Thelowtensilestrengthandtheshortelongationofthepureepoxycoatingleadtothatthefatiguecrackofthecoatedspecimenisalwaysinitiatedfromtheepoxy-coatingfilmPoresandpinholesacceleratethefatiguecrackinitiationprocess.PinholesarecausedbythecorrosionreactionsbetweentheepoxycoatingandtheNaClsolution.

简介：一系列聚合物混合从1,3二度(3,4-dicyanophenoxy)被准备苯(3BOCN)和有是的甲基tetrahydrophthalic酐的环氧基树脂树脂治好代理人。治好的行为和混合的治好的动力学被微分扫描热量测定学习。没有3BOCN，有3BOCN的各种各样的内容的混合的明显的激活精力比混合的高。一个模型实验建议在phthalonitrile和环氧基树脂之间没有明显的反应。聚合物混合的热、机械的性质被评估。聚合物混合与整洁的环氧基树脂相比展出高存储模量和字符产量。聚合物混合证明由扫描电子显微镜学(SEM)的可锻的破裂形态学想象。

简介：Thestatusandthevariationofelectricalresistanceofimpactedcarbonfiber/epoxy-matrixcompositeswerestudiedbyultrasonicF-scanandelectricalresistancemeasurementTheexperimentalresultsshowsthatimpactdamageenergythresholdvalueofcarbonfabric/epoxy-matrixcompositescandeterminebyusingultrasonicF-scan.Whentheimpactenergyexceedsthethresholdvalue,damageisgeneratedincomposites.Electricalresistanceofimpactedcompositesischangedowingtothecontactofeachcarbonfiberunitincomposites,whichcauseachangeoftheseries-parallelinconductors.Theveracityofdetectingimpactdamageincompositescanbeimprovedinthiscase.

简介：摘要随着建筑行业的快速发展，大面积工厂用房工程项目也逐渐增多，并对地面施工提出了更高的平整度控制要求。基于这种情况，本文对大面积混凝土地面施工的平整度控制问题进行了分析，并对EPOXY地面的做法展开了探讨，以期为关注这一话题的人们提供参考。

简介：Mechanicalpropertiesofepoxyresinwereinvestigatedbyaddingcore-shellelasticparticles(CSEP).Theresultsindicatedthatoptimizedcore-shellratiowas60/40andtheloadingvolumeofCSEPwas10phr(perhundredpartsofepoxyresinbyweight).Theimpactstrengthofmodifiedsystemsincreasedapparentlywiththedecreaseofcoresizes.However,theshearingstrengthchangedgentlywiththeparticlesizes.CSEPwithlightlycrosslinkedrubberycoreshowedmoreeffectivenessontoughnessthanothers.Withsolutionblending,CSEPcouldbedispersedinepoxymatrixwell,andthemorphologiesofdispersedrubberdomainswerecontrolledperfectlybyCSEPwhosestructurewaspredesigned.Acavitation-shearingbandtoughnessmechanismwasobservedfromtheSEMmicrographsoffracturesurface.Italsowasfoundthatthedeformingtemperature(DT)ofmodifiedepoxydidnotdeclineapparently.

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简介：超离频分子的重量聚乙烯(UHMWPE)纤维/环氧基树脂composites被真空制作处理技术的灌输的帮助树脂(VARI)。composites的治好的条件在80的痊愈温度