提高亚麻细纱强伸性能的研究

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1、foundthatyamqualitywasbetteraftersodaboiling-chloriteandoxygenbleachingprocess.Thenthispaperadjustedtheconcentrationofthreekeyreagentsinsodaboiling-chloriteandoxygenbleachingprocesswhichwerehydrogenperoxide,sodiumchloriteandsodiumcarbonate.Throughsingleexperiment,itfoundthatwithth

2、eincreaseofhydrogenperoxideconcentration,yambreakingstrengthdecreased,whilewiththeincreaseofsodiumchloriteorsodiumcarbonateconcentration,itfirstincreasedandthendecreased・Whenthereagentconcentrationwastoohighortoolow,thestrengthvariationcoefficientwaslarge・Thebreakingelongationandt

3、imewerelowerwhenthereagentconcentrationwaslow.Ifthereagentconcentrationwashigh，theelongationandbreakingtimewerehigher.Onthebasisofsingleexperiment,orthogonalexperimentwascarriedoutinthispaper.Itfoundthattheconcentrationofhydrogenperoxidehadahighlysignificanteffectonbreakingstrengt

4、handelongation.Whilesodiumcarbonatehadageneralsignificanteffectonbreakingstrengthandsodiumchloritealsohadageneralsignificanteffectonelongation・Theeffectofthesethreekeyreagentsonstrengthvariationcoefficientandbreakingtimewasnotsignificant.Thebestspunyarntensilepropertiescouldbereal

5、izedwhentheconcentrationofhydrogenperoxidewas5.09g/L,sodiumchloritewasL94g/Landsodiumcarbonatewas3.33g/Landyambreakingstrengthwas856cN,strengthvariationcoefficientwas16.53%,elongationwas2.35%,breakingtimewas1.3swhichcouldmeetthetargetrequirements・Qualityofflaxrovingafterscouringan

6、dbleachingprocesshasmucheffectonspunyarntensilestrength.Inthispaper,itdiscussedandanalyzedtherelationshipbetweenyarnstrengthandmainconcomitantscontentofflaxrovingafterscouringandbleachingprocess.Itfoundthatpectincontentofflaxrovingafterscouringandbleachingprocesshadthegreatestinfl

7、uenceonyamstrengthwithcorrelationcoefficient0.6061,itwasappropriatetocontrolthepectincontentat0.6〜1.2%•Hemi-cellulosecontenthadabigimpactonitwithcorrelationcoefficient0.4902,itwasappropriatetocontrolthehcmi-ccllulosccontentat11〜13%•Flaxlignin,fattywaxandwater-solublecontentaftersc

8、ouringandbleachingprocesshadlessi