econbrhnbr三元共混胶料的制备与研究

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1、摘要ECO／NBR／HNBR三元共混胶料的制备和研究本文研究T--元共聚氯醚橡胶(ECO)／丁腈橡胶(NBR)／氢化丁腈橡胶．(HNBR)共混橡胶的配方、硫化工艺及其结构与性能的关系，获得可作为密封材料配方及加工工艺。本文研究内容如下：第一部分，研究了多个牌号的氢化丁腈橡胶，丁腈橡胶和二元共聚氯醚橡胶的综合性能，并系统研究了ECO，HNBR和NBR胶料的门尼粘度和加工流变性能，选择了综合性能较佳且适合共混的的胶料用于三元共混。第二部分，研究了三种胶料的硫化体系。主要包括三种橡胶各自的的最佳硫化体系和用量，硫化体系之间的相互影响，硫化时间的匹配以及硫化工艺

2、，最终找出了最佳的硫化体系，正硫化时间和硫化工艺。第三部分，研究了ECO／NBR，HNBR／NBR二元共混胶料的结构形态和炭黑补强胶的力学性能，耐油性，相容性，共混比，压缩永久变形，为三元共混体系的制备奠定了基础。第四部分制备ECO／NBR／HNBR三元共混胶料，研究了共混工艺，硫化工艺，共混比对共混胶料力学性能，压缩永久变形，耐油性，耐低温性的影响；研究了不同炭黑种类对共混胶料性能的影响。结果表明ECO／NB刚HNBR共混胶料可作为性能较高且价格低廉的密封材料使用。关键词：ECO／NBR／HNBR,共混胶料，性能，相态结构，硫化，工艺，共混比，相容性I

3、ABSTRACTTHEPREPARATIoNANDRESEARCHoFECo／NBR／HNBRRUBBERBLENDSTheformuladesign，vulcanizationtechnicsandrelationshipbetweenstructuresandpropertiesofepichlorohydrinrubber(ECO)／nitrilerubber(NBR)／hydrogenatednitrile-butadienerubber(HNBR)blendwerestudiedinthispaper,andwehavegottheresult

4、sthatthetechnicsandmanufacturingtechnologyofsealingmaterialcouldfulfilltherequiresofitem．Firstly,Westudiedtheintegratedperformanceofanumberofgradesofhydrogenatednitrile—butadienerubber,nitrilerubberandrubberdualPenton．AndthemooneyviscosityandtherheologicalpropertiesoftheECO，HNBRa

5、ndNBRrubberwerestudied．Thenwechoserubberwhichhaveabetterintegratedperformanceandissuitableforblending．Weusedthemintheternaryblends．Secondly,westudiedthevulcanizationsystemofHNBR，NBRandECO．Itmainlyincludedthebestvulcanizationsystemandtheamountofvulcanizationagent，theeffectsbetween

6、allofthecuringsystem，thematchvulcanizationtimeandthevulcanizationprocess．Wehavefoundthebestcuringsystem，curingtimeandcuringprocess．Thirdly,westudiedstructuralmorphologyofECO／NBR，HNBR／NBRIIIABSTRACTwithdifferentblendingratio．Andmechanicalproperties，oilresistance，compatibility,blen

7、dingratio，compressionpermanentdeformationofECO／NBR，HNBR／NBRfilledwithcarbonblack．Thesestudieslaidatheoreticalbasisforthepreparationoftheternaryrubbercompound．Fouthly,wepreparedECO／NBR／HNBRtemaryrubbercompoundandstudiedthestructuralmorphologyofthem．TheTEMshowedthatECO／NBR／HNBRblen

8、dswithsuitablemassratiocouldformacladdin