CMC-CTAB二元紙張?jiān)鰪?qiáng)系統(tǒng)的作用及機(jī)理的研究.pdf

1、福建農(nóng)林大學(xué)碩士學(xué)位論文CMCCTAB二元紙張?jiān)鰪?qiáng)系統(tǒng)的作用及機(jī)理的研究姓名：陳琳申請學(xué)位級別：碩士專業(yè)：制漿造紙工程指導(dǎo)教師：陳學(xué)榕20090401AbstractIIlthepaperrnakingindustrythematerialisvariousandthewastepaperincreasesYe缸bYyear’butnonwoodresourcestillpossessesapartofproportionAsthelo

2、wstrengthofthematerialwhosefmerisshort，theapplicationofpaperreinforcingagentdrawsaextensiveattentionSinglereinforcingagentisdifficulttomeetthereinforcedrequirementsofvariousmaterialItneedtodevelopaseriesofduals仃engthenin

3、gsystemCombiningtworeinforcingagentwithmulti_effect，utilizingtheirsynergisticeffect，thesystemwillacquiremarkedeffectandgoodeconomic，socialandenvironmentalbenefit，atthesametime，itwillenjoywideapplicationprospect。IIlthisth

4、esisalkyltrimethylammoniumbromides(CTAB)andcarboxymethylcellulose(CMC)f0眥adualstrengtheningsystemByusingtechnologyofadditioninpulp，theresearchcompaIIestheimpactofCMCandCTABwithdifferentalkylgroupandpHofthesolutiontothepa

5、perstrengthenFurthermoretheoptimumtechnologicalparameterswereachievedandtllemechanismofthedualstrengtheningsystemarediscussedTheexpefimentresuItsshowthat：thewaterretentionvalueofthepulpincreasewithaddingCMC，andthewaterad

6、sorptionandswellingcapabilityoffiberareimprovedAlkyltrimethylammoniumbromidesarecationicsurfactants，theyCansignificantlydecreasethesurfacetensionandstronglyattachonthefibertoreducetherequiringofcationicchargeMoreoverthea

7、dditionandfiberaredistributedmoreuniformTheapplicationeffectismarkedlyimprovedbycooperatingCMCandsmallamountofalkyltrimethylammoniumbromidesCetyltrimethylalnnloniumbromide(CTAB)isthebestonetocooperatewithCMCWiththeincrea

8、singoftheCMCandCTABdosage，thepropertiesofsheetareincreasedThepropertiesofthesheetfrombagassechemicalpulpgetthebestresultswithCMCdosage05％，CTABdosage01％，andpH7Thetensileindexburstindexandtearindexofthesheetareincreasedabo

9、ut587％，5895，359％，respectivelyTheresultsofscanningelectronmicroscopyprovethat：therearemany‘ropelike’’bridgesf0徹edbetweenthefibersinthedualstrengtheningsystemofCMC／CTABItCallexplainwhythebondingforceofthefiberincreasebyadd