熔融法紡制聚醚醚酮纖維的研究.pdf

1、北京服裝學(xué)院碩士學(xué)位論文熔融法紡制聚醚醚酮纖維的研究姓名：李明月申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：材料學(xué)指導(dǎo)教師：張?zhí)祢?0081201STUDYONTHEMELrSPINNINGOFPOLYETHERETHERKETONEFIBERAbstractPEEK(Polyetheretherketone)isanewkindofthermoplasticpolymerwithexcellentcomprehensiveproperties，sucha

2、sflame—retardantandhightemperatureresistanceInthispaperthespinningprocessofPEEKfilamentswerestudied，andvariousperformancesofthefilamentsandfabricwereinvestigatedTwokindsofVictrexPEEKresinswerecomparedinspinnabilityandPEE

3、K一2resinwithlowermeltviscosityshowsbetterspinnabilitywithaappropriatespinningtemperatureof360。C～390“Candawindingspeedofmorethan700m／minWiththeuseofspinningheatingchannelandthedecreaseofspinning—stretchratio，theorientatio

4、nfactoroftheas。spunPEEKfibersdecreased，thedrawabilityandthemechanicalpropertiesincreasedThedrawratiooftheasspunPEEKfibersisupto32～35atthedrawingtemperatureof270“Candthedrawingspeedof300m／minThebreakingstrengthofthedrawnP

5、EEKfiberisupto66cN／dtex，thebreakingelongationpercentageis126％，andthemoisturecontentis219％；thebreakingstrengthofthePEEKfabricisupto785ONthebreakingelongationpercentageis346％，andtheaverageabrasionresistanceofthefabricwas67

6、85timesAfteraheatagingat270。Cfor1200hours，thePEEKfibersyellowedandbecomebrittle，butthebreakingstrengthretains797％，andthebreakingstrengthofthefabricretains888％AlsotheflameretardantpropertiesofPEEKfabricwerestudiedbyvertic

7、atflammabilitytest，smokedensitytestandconecalorimetertest，theresultsshowsthat，PEEKfabricwasdifficulttoignite，onceburningtheflamespreadedslowlythelargestsmokedensityDsis206，andattheheateradiateintensityof75kW／m2，themaximu

8、mheatrelaseratewas183kW／m2，themaximumproportionofpoisonousgasCOis9ppm，littlesmokewasgaveout，alsothecombustionresidueofPEEKfabricwasrathercompactiveKeywords：Polyetheretherketonefiber；hi曲一temperaturemeltspinning；process；pr