芳纶14142f棉混纺织品物与阻燃整理的阻燃性能的的研究

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1、ABSTRACTInthispaper,PPTA／coaonblendedfabricsweredeveloped．nepropertiesofthefibers．mechanicalcharacteristicsoftheblendedyarnsandfabrics，fabrichand，theflameretardantandheatresistanceoftheblendedfabricwerestudiedsystematically．Thetechnologyonspinning、weavingandflame-retardanttreatmen

2、twerealsodiscussed．ItisindicatedthatthePPTAhaslonglength、fuzziness、strongrigidity、badfibercohesion、highspecificresistance、statictendencyatspinningprocessandpoorspinnability．ButthePPl’Ahashi曲strengthandwearability；cottonhasgoodfibercohesionandspinnability,butpoorfiberlengthuniformi

3、ty．TospinPPTA／eottoninsixblendingratios，strandingtheblendingyamswerewovenandthenflameretardantfinished，andtheperformancetested．Theresultsindicatethatthemechanicalpropertiesofblendedthreadsaregood，astheincreasingofblendingrationofPmthestrengthandbreakingelongationofblendedthreadsar

4、einducedandyamhairinessisreduce；withtheincreasingofblendingratioofPPTAthemechanicalpropertiesofblendedfabricsareinduced，thechangeissimilarwithlawoftheyarns．KES．FhandletestingshowedthatasthedecreasingofblendingratioofPmthestiffnessofblendedfabricsarereduced，butthesmoothnessandfulln

5、essincreasedwiththeblendratioofPPTAfiberdecrease．ResultsfromVerticalFlammabilityTestandLOIexperimentsindicatedthatastheincreasingoftheblendingratioofthePP，I’A，tIleLOIofblendedfabricswhichbeforetheflame．retardantfinishingareincreased,butit’SalsolowerthanpurePPTAfabrics．Aftercombust

6、ion，alltypesofBlendedfabrichasslightlyshrink、smallburnedareaandsturdycharringlayeronsurfaces．Aftertheflameretardantfinishing，theLOIofblendsfabricsisimprovedmarkedly，Theflameretardantkeepsgettingbetterafterwashingflameretardantfinishedblendedfabrics30times，Thedamagelength、durationo

7、faRerglowanddurationofafterflamearegraduallydecreased,AlltypesoffinishingblendedfabrichasCoking、strongcarbonizedlayersandslightlyshrunk．TheThermogravimetry(TG)showedthattheheatstabilityofblendingfabricsisincreasedwiththeincreasedofblendingratioofPPTA，ThemorecontentofPPTAtheblendin

8、gfabricshavethehighertemperatureo