简介：Insitucompatibilizationoflowdensitypolyehylene(LDPE)(30%)andnylon-6(70%)blendsthroughone-stepreactiveextrusionusingt-BuOOHasaninitiatorandlowmolec-ularweightinterfacialagentsascompatibilizerswasstudied.Thecompatibilizercontainedalongchainbydrocarbon,doublebondandtwopolarfunctionalgroupswhichwascapableofreactingwithbothLDPEandnylon-6inthepresenceofinitiatortoformacopolymerattheinterfaceofthetwopolymerphases.Theextrudedblendsexhibitedsignificanten-hancementintheircompatibilitybasedonmorphological,thermalanalysisandmechanicalstudies.Theeffectofthehydrocarbonchainlengthandstructureofthefunctionalgroupofthecompatibilizerwasalsoexamined.Itwasfoundthatblendspreparedbyusingthecompatibilizercontaininglongerhydrocarbonchainandamidegrouphadbettermechanicalproperties.

简介：Segmentedblockcopolymerbasedonnylon6(N6)andpolyethyleneoxide(PEO)withstochiometricratiowassynthesizedviaatwo-stepprocess.ThefirststeprepresentsendcappingofN6inthepresenceofadipicacidleadingtocarboxyterminatedN6,andthesecondoneispolycondensationofthelatterproductwithPEOinthepresenceofcatalystandthermostabilizertoformahighmolecularweightmulti-blockcopolymer.SeveralmethodswereappliedtocharacterizethesynthesizedcopolymersuchasFouriertransforminfraredspectroscopy,protonnuclearmagneticresonancespectroscopy,differentialthermalanalysis,differentialscanningcalorimetry,X-raydiffractionandatomicforcemicroscopy.Theobtainedresultsconfirmedthemulti-blockstructureforcopolymerwithaveryhighdegreeofmicro-phaseseparation.Atomicforcemicroscopymicrographsindicatedthatthemorphologywasthedispersionofhighstiffnessnanostructuredpolyamide(PA)domainsintheamorphousregionofPEOmatrix,whichcanbeveryimportantintheirperformanceformembraneprocesses.

简介：基于的二naphthalimide的技术性质分散尼龙6上的染料和聚酯纤维面对脲被调查。基于的二naphthalimide驱散染料被综合。染料被净化然后充分描绘了使用1H-NMR，FTIR和融化的点分析。染料的分散在水里被准备并且在尼龙6上适用并且宠物纤维。染料在底层上提供了好逐渐增加性质。为了增加，染底层的吸附，脲被增加进dyebath。由增加脲，聚酯的染料吸附显著地被增加，当尼龙6的增加是不显著的时。染料在底层上显示出好迅速性质。

简介：Thepresentpaperdealswiththeuseofanewpolymericflameretardantmaterial,polyphenylenesulphide(PPS)forplastics.Incorporationof15—20%PPSintonylon-6hasprovidedULV-0ratingforthesystemandthereisenhancementintensileandflexuralproperties.Theresultsobtainedonthethermal,crystallizationandflowcharacteristicsofthenylon-PPSsystemuptoaloadingof40%PPSarealsodiscussed.

简介：ThestructureofaggregationstateandisothermalcrystallizationbehaviorofNylon-1010havebeenstudiedbyWAXD,DSE,Variance-RangeFunctionanddensitymeasurement.TheresultsshowthatcrystallizationofNylon-1010hasthemostsuitableannealingtemperature,thecrystalsoftheNxlon-1010aretwo-dimensionheterogeneousnucleation.Bothlowtreatmenttemperatureandhighcrystallizationte,temperaturearedisadvantageousforNylon-1010crystalgrowth.

简介：AseriesofLa2O3/MCnylonnanocompositeswerepreparedviainsitupolymerization.Theeffectsofcontentofnano-La2O3onthemechanicalpropertiesofnanocompositeswerestudied.Dispersionofnano-La2O3inMCnylonmatrixwasobservedwithSEM.ThecrystalstructureofnanocompositeswascharacterizedbymeansofXRD.SEManalysisshowsthatLa2O3nanoparticlesareuniformlydispersedinMCnylonmatrixandlittleclusteringexistswhenthecontentofnano-La2O3islowerthan1%,however,whenthecontentofnano-La2O3ismorethan1%,itbeginstocluster.XRDanalysisindicatsthatnano-La2O3doesnotchangethecrystalstructureofMCnylon.Mechanicalpropertiestestsshowthatthetensilestrength,elongationatbreak,impactstrength,flexuralstrength,andflexuralmodulusofnanocompositesfirstincreasethendecreaseasthecontentofnano-La2O3isincreased.Whenthecontentofnano-La2O3is0.5%,thetensilestrengthandelongationatbreakofnanocompositesreachmaximum,whichare17.9%and52.1%higherrespectivelythanthoseofMCnylon.Whenthecontentofnano-La2O3is1.0%,theimpactstrength,flexuralstrengthandflexuralmodulusofnanocompositesreachmaximum,whichare36.6%,12.7%and16.3%higherrespectivelythanthoseofMCnylon.

简介：Microporouspolyamidemembrane(Nylon6,PA)wasmodifiedbyaddhydrolysisandthencoupledwithhydroxyethylcellulose(HEC)toamplifyreactivegroupsandreducenonspecificinteractionwithproteins.1,6-Diaminohexane(DAH)asspacearmandphenylalanine(Phe)asligandwereimmobilizedontonylonmembranethroughtheactivationofs-triazinetrichloride(CyCl3).Theaffinitymembraneobtainedcanbeusedtoadsorbγ-globulinspecifically.Theoptimumconditionsofpreparingaffinitymembraneandadsorbingbovineγ-globulinwerestudied.

简介：Agreenapproachtothesynthesisandmorphologicalcontrolofhighperformancepolyimidesandtheirnanohybridshish-kebabsinglycerolthroughreaction-inducedcrystallizationofnylon-salt-typemonomerswasreported.Crystallinepolyimidenanoplatescanbeobservedbydirectpolycondensationofpyromelliticacidwithvariouskindsofaliphaticoraromaticdiamines.Withtheexistenceofcarbonnanotubes,thepolyimidescanbesuccessfullydecoratedonthesurfaceofCNTsthroughareaction-inducedhetero-epitaxialcrystallizationprocess,andresultedinnovelpolyimide/CNTnanohybridshish-kebabs(NHSKs)structures.ThemorphologiesoftheNHSKscanbefine-tunedthroughchangingtheconcentrationofmonomersorthereactiontemperature,especiallythroughtheintroductionofdynamiciminechemistry,theformationprocessofNHSKscanbeattributedtoasoftepitaxymechanism.ThusagreenapproachforthesynthesisofhighperformancepolyimidesandtheirCNTbasednanohybridstructureswasexplored,whichshouldbeofgreatvaluefortheirapplicationsinhighperformancereinforcednanocomposites.

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简介：【摘要】 竖井多绳摩擦提升机更换首绳是矿山机电专业大型施工项目，其技术含量高，安全风险大，施工工艺复杂。针对赤峰柴矿提升系统的工况，介绍一种“以旧带新”的首绳更换工艺方法及安全措施，该工艺能极大的减轻换绳工作强度，缩短换绳时间，降低安全风险，取得较好经济效益和社会效益。

简介：摘要：新形势下，林业经济得到了快速的发展，已经成为我国国有经济的重要组成部分，对推动国民经济的发展起到了积极的促进作用。林业经济建设需要大量的林业项目资金作为支持，但如何在现实的林业项目建设工作中，合理的管理和利用好这笔林业项目资金，将其自身价值和使用率充分的体现出来，无疑成为现阶段众多林业相关工作人员急需解决的问题。为此，本文针对新形势下林业项目资金存在的方式及特征以及林业项目资金管理中存在的一些常见问题进行了深入的分析与研究，并总结出了几点林业项目资金管理意见建议，以供参考。

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简介：蔷薇花开，候鸟搬完了家，夏天开始了。现在的白昼最长；在遥远的北方，完全没有黑夜了——太阳24个小时都在天上。

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简介：球员锦标赛经历一波三折终于在美国人马特·库查尔的夺冠声中落下帷幕,当库查尔抱起孩子和妻子庆祝时,那样的场景让人动容。拜伦尼尔森锦标赛,詹森·杜夫纳在第18洞果岭上那杆25英尺长推小鸟夺冠,令人难以置信!高尔夫真的需要一颗大心脏。六月,美国公开赛成为了最大的焦点,麦克罗伊、老虎·伍兹、维斯特伍德能重现辉煌?

简介：甲:(无精打采地上,一个耳朵包着纱布)乙:马大哈,新年好!甲:(听错了)不得了?什么不得了？乙:别打岔!甲:放一挂?不,不,我一个也不

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