Sodium carboxymethylcellulose (CMC) ikemikari inosiyana-siyana ine kushandiswa kwakapararira mumaindasitiri akasiyana, kunyanya muindasitiri yekugadzira mapepa. Iyi carbohydrate derivative inotorwa kubva ku cellulose, inova yakasikwa polymer inowanikwa muchirimwa sero madziro. CMC inogadzirwa nekuita cellulose ine sodium hydroxide uye chloroacetic acid kana sodium yayo munyu. Mushonga unoguma unonyungudika nemvura uye une zvimiro zvakasarudzika zvinoita kuti ive yakakosha mukushandisa kwakawanda.
1.Kugadzirira kwePulp:
CMC inowanzoshandiswa sechikamu mukunyorova kwekupedzisira kwekugadzira mapepa. Iyo inobatsira mukupararira kwefiber uye zvimwe zvinowedzera mumvura, zvichifambisa kuumbwa kwehomogeneous pulp slurry.
Yayo yakakwirira yekuchengetedza mvura inobatsira mukuchengetedza kuwirirana kwepulp slurry, kuve nechokwadi chekufanana mukugadzirwa kwepepa.
2.Kuchengeta uye Drainage:
Imwe yematambudziko akakosha mukugadzira mapepa ndeyekurisa kuchengetwa kwefibers uye additives uchinyatso dhiza mvura kubva mupulp. CMC inobatsira kugadzirisa dambudziko iri nekuvandudza zvese kuchengetedza uye hunhu hwemvura.
Seyamuro yekuchengetedza, CMC inosungira kune fiber uye faindi, kudzivirira kurasikirwa kwavo panguva yekuumbwa kwepepa bepa.
CMC inonatsiridza dhiraivha nekuwedzera mwero wekubviswa kwemvura kubva mupurupa, zvichitungamira kukurumidza kudonha uye kumhanya kwemuchina wemapepa.
3.Kuwedzera Simba:
CMC inobatsira kune simba zvivakwa zvebepa, kusanganisira kusimba kwesimba, kubvarura kuramba, uye kuputika simba. Iyo inoumba network mukati mepepa matrix, inobudirira kusimbisa chimiro uye kuwedzera maitiro ayo emagetsi.
Nekuvandudza simba remapepa, CMC inobvumira kugadzirwa kwemapepa matete magiredhi pasina kupira kuita, nekudaro ichigonesa kuchengetedza mutengo uye kugona zviwanikwa.
4.Kukura Kwepamusoro:
Surface sizing inhanho yakakosha mukugadzira mapepa inosanganisira kuisa yakatetepa dhizaini ye saizi ejenti kumusoro kwebepa kuti ivandudze kudhinda kwayo, kutsvedzereka, uye kuramba mvura.
CMC inoshandiswa seyepamusoro saizi mumiriri nekuda kweiyo firimu-kugadzira zvimiro uye kugona kukwidziridza simba repamusoro uye kutsetseka. Iyo inoumba yunifomu yekuputira papepa repamusoro, zvichiita kuti inki igare yakagadziridzwa uye kudhindwa kwemhando.
5.Kuchengeta Rubatsiro rweMazadza uye Pigment:
Mukugadzira mapepa, mafirita uye pigment anowanzo wedzerwa kuti avandudze zvinhu zvemapepa senge opacity, kupenya, uye kudhinda. Nekudaro, izvi zvinowedzera zvinogona kukonzeresa kurasikirwa kwemvura panguva yekugadzira mapepa.
CMC inoshanda seyamuro yekuchengetedza yekuzadza uye pigment, ichibatsira kuamisa mukati mebepa matrix uye kuderedza kurasikirwa kwavo panguva yekuumbwa nekuomeswa.
6.Kudzora kweRheological Properties:
Rheology inoreva mafambiro ekuyerera kwemvura, kusanganisira pulp slurries, mukati mekugadzira mapepa. Kudzora rheological properties kwakakosha pakugadzirisa mashandiro ekuita uye kunaka kwechigadzirwa.
CMC inokanganisa rheology yepulp slurries nekugadzirisa viscosity yavo uye kuyerera maitiro. Inogona kushandiswa kugadzirisa rheological zvimiro zvepulp kuti ienderane nezvinodiwa zvekugadzirisa, sekuvandudza kumhanya kwemuchina uye kuumbwa kwepepa.
7.Kufunga nezvezvakatipoteredza:
Sodium carboxymethylcellulose inowanzoonekwa seine hushamwari kwezvakatipoteredza, sezvo inotorwa kubva kune inogonesa cellulose masosi uye ine biodegradable.
Kushandiswa kwaro mukugadzira mapepa kunogona kubatsira mukusimudzira zvigadzirwa zvemapepa zvakatsiga nekugonesa maitiro ekugadzira-anoshanda zvakanaka uye nekuvandudza mashandiro echigadzirwa.
sodium carboxymethylcellulose (CMC) inobata basa rakasiyana-siyana muindasitiri yekugadzira mapepa, ichishanda sechinhu chakasiyana-siyana chekuwedzera chinosimudzira zvakasiyana-siyana zvekugadzira mapepa. Kubva pakugadzirira kwe pulp kusvika pakuyera kwepamusoro, CMC inobatsira kuvandudza kushanda zvakanaka, kunaka kwechigadzirwa, uye kuchengetedza kwezvakatipoteredza. Kusanganiswa kwayo kwakasarudzika kwezvivakwa kunoita kuti ive yakakosha kune vanogadzira mapepa vari kutsvaga kukwirisa mashandiro uye kusangana nezvinoda kuitika zvemusika.
Nguva yekutumira: Chivabvu-06-2024