Carboxymethyl Cellulose CMC yePepa Coating

Carboxymethyl cellulose sodium (CMC) ipolymer inonyungudika nemvura inoshandiswa zvakanyanya muindasitiri yemapepa sechinhu chinoputira.Basa rekutanga reCMC mukunamira mapepa nderekuvandudza mapeji epamusoro, sekupenya, kutsvedzerera, uye kudhinda.CMC ndeye yakasikwa uye inovandudzwazve polymer iyo inotorwa kubva ku cellulose, iyo inoita kuti ive eco-inoshamwaridzika imwe nzira kune yekugadzira coating agents.Ichi chinyorwa chichakurukura zvivakwa uye mashandisirwo eCMC mukuputira mapepa, pamwe nemabhenefiti ayo uye zvisingakwanisi.

Zvivakwa zveCMC zvePepa Coating

CMC i polymer inonyungudika nemvura inotorwa kubva ku cellulose, inova ndiyo chikamu chikuru chechirimwa maseru madziro.Iro carboxymethyl boka (-CH2COOH) inowedzerwa kumusana we cellulose kuti iite kuti inyunguduke mumvura uye iwedzere maitiro ayo sechinhu chinoputira.Zvimiro zveCMC zvinoita kuti ive yakakodzera kupfekedzwa kwepepa zvinosanganisira iyo yakakwira viscosity, yakakwira yekuchengeta mvura, uye kugona kugadzira firimu.

High Viscosity: CMC ine yakakwira viscosity mumhinduro, iyo inoita kuti ive inoshanda thickener uye binder mubepa coating maumbirwo.Iyo yakakwira viscosity yeCMC inobatsira kuvandudza kufanana uye kugadzikana kweiyo coating layer papepa repamusoro.

Yakakwira Mvura Yekuchengeta Kugona: CMC ine yakakwirira yekuchengetedza mvura, iyo inoibvumira kubata mvura uye kuidzivirira kubva pakubuda panguva yekuputira.Iyo yakakwira yekuchengeta mvura yeCMC inobatsira kuvandudza kunyorova uye kupinda kweyekuputira mhinduro mumapepa efiber, zvichiita kuti iwedzere yunifomu uye inopindirana coating layer.

Firimu-Kugadzira Kugona: CMC ine kugona kuumba firimu pamusoro pepepa, iyo inobatsira kuvandudza pamusoro pezvinhu zvebepa, sekupenya, kutsvedzerera, uye kudhinda.Iko kugona kugadzira firimu kweCMC kunonzi kune huremu hwayo hwepamusoro uye kuumbwa kwehydrogen bond ne cellulose fiber.

Zvikumbiro zveCMC muPepa Coating

CMC inoshandiswa mumhando dzakasiyana-siyana dzekuputira mapepa, kusanganisira:

Coated Papers: CMC inoshandiswa sechinhu chinonamira mukugadzirwa kwemapepa akavharwa, ari mapepa ane danda remachira akaiswa pamusoro kuti avandudze nzvimbo dzawo.Mapepa akavharwa anowanzoshandiswa pakudhinda kwemhando yepamusoro, semagazini, mabhuku, uye mabhurocha.

Packaging Mapepa: CMC inoshandiswa sechinhu chinonamira mukugadzira mapepa ekurongedza, ari mapepa anoshandiswa kurongedza uye kutakura zvinhu.Kuvhara mapepa ekurongedza neCMC kunobatsira kuvandudza simba ravo, kuramba kwemvura, uye kudhinda.

Specialty Mapeji: CMC inoshandiswa seyakavharisa mukugadzira mapepa ehunyanzvi, senge Wallpaper, kuputira zvipo, uye mapepa ekushongedza.Kupfekedza mapepa ehunyanzvi neCMC kunobatsira kuvandudza zvimiro zvavo zvekushongedza, sekupenya, kupenya, uye magadzirirwo.

Mabhenefiti eCMC muPepa Coating

Iko kushandiswa kweCMC mukuputira mapepa kunopa akati wandei mabhenefiti, kusanganisira:

Yakavandudzwa Nzvimbo Yepamusoro: CMC inobatsira kuvandudza zvinhu zvepapepa, sekupenya, kutsvedzerera, uye kudhinda, izvo zvinoita kuti ive yakanakira kudhinda kwemhando yepamusoro.

Eco-inoshamwaridzika Imwe nzira: CMC ndeye yakasikwa uye inovandudzwazve polymer iyo inotorwa kubva ku cellulose, iyo inoita kuti ive eco-inoshamwaridzika imwe nzira kune yekugadzira coating agents.

Inodhura-inoshanda: CMC inzira inodhura kune mamwe maajenti ekuputira, senge polyvinyl doro (PVA), iyo inoita kuti ive inoyevedza sarudzo kune vanogadzira mapepa.

Kuganhurirwa kweCMC muPepa Coating

Iko kushandiswa kweCMC mukuputira mapepa kunewo zvimwe zvinogumira, zvinosanganisira:

Sensitivity kune pH: CMC inonzwa kune shanduko mupH, iyo inogona kukanganisa kushanda kwayo semumiriri wekuputira.

Yakaganhurirwa Solubility: CMC ine kushomeka kunyungudika mumvura pane yakaderera tembiricha, iyo inogona kudzikamisa mashandisirwo ayo mune mamwe mapepa ekuputira maitiro.

Kuenderana neZvimwe Zvinowedzerwa: CMC inogona kusawirirana nezvimwe zvekuwedzera, senge starch kana ivhu, izvo zvinogona kukanganisa kushanda kweiyo yekubikira layer papepa.

Kusiyana muUnhu: Hunhu uye kuita kweCMC kunogona kusiyana zvichienderana nekwakabva cellulose, maitiro ekugadzira, uye dhigirii rekutsiva boka recarboxymethyl.

Zvinodikanwa zvekushandisa CMC muPepa Coating

Kuve nechokwadi chekushanda kwakakwana kweCMC mumapepa ekuputira maapplication, akati wandei zvinodikanwa zvinofanirwa kuzadzikiswa, zvinosanganisira:

Dhigirii reKutsiva (DS): Chiyero chekutsiviwa kweboka recarboxymethyl pamusana we cellulose inofanira kunge iri mukati mechikamu chakati, kazhinji pakati pe0.5 ne1.5.Iyo DS inokanganisa kunyungudika, viscosity, uye kugona kugadzira firimu kweCMC, uye DS iri kunze kweiyo renji inogona kukonzera kusashanda zvakanaka kwekupfekedza.

Molecular Weight: Huremu hwemamorekuru eCMC hunofanirwa kunge huri mukati mechikamu chakati kuti ive nechokwadi chekushanda kwakakwana semumiriri wekuputira.Yepamusoro mamorekuru huremu CMC inowanzova nemhando yepamusoro yekugadzira firimu uye inoshanda zvakanyanya pakuvandudza mamiriro epamusoro epepa.

pH: Iyo pH yemhinduro yekubikira inofanirwa kuchengetedzwa mukati meiyo yakatarwa kuti ive nechokwadi chekuita kwakakwana kweCMC.Iyo yakanakira pH renji yeCMC kazhinji iri pakati pe7.0 ne9.0, kunyangwe izvi zvichigona kusiyana zvichienderana nekushandisa chaiko.

Kusanganisa Mamiriro: Mamiriro ekusanganiswa emhinduro yekuputira anogona kukanganisa mashandiro eCMC semumiriri wekupfeka.Iko kusanganisa kumhanya, tembiricha, uye nguva inofanirwa kuvandudzwa kuti ive nechokwadi chekupararira uye kufanana kwemhinduro yekuputira.

Mhedziso

Carboxymethyl cellulose sodium (CMC) ipolymer inonyungudika nemvura inoshandiswa zvakanyanya muindasitiri yemapepa sechinhu chinoputira.CMC ndeye eco-inoshamwaridzika uye inodhura-imwe nzira kune yekugadzira coating agents, uye inopa akati wandei mabhenefiti, kusanganisira yakagadziridzwa pamusoro pezvivakwa uye kudhinda.Nekudaro, kushandiswa kweCMC mukuputira mapepa zvakare kune zvimwe zvinogumira, kusanganisira kunzwa kwayo kune pH uye kushomeka kunyungudika.Kuve nechokwadi chekushanda kwakakwana kweCMC mumapepa ekuputira maapplication, zvakanangana zvinodikanwa zvinofanirwa kusangana, zvinosanganisira dhigirii rekutsiva, uremu hwemamorekuru, pH, uye kusanganisa mamiriro ekugadzirisa.