Ii-cellulose ethers zidlala indima ebalulekileyo kushishino lwephepha, zinceda kuzo zonke iinkalo zokuveliswa kwephepha kwaye ziphucula umgangatho kunye nokusebenza kweemveliso zephepha.
1. Intshayelelo kwi-cellulose ether:
Ii-cellulose ethers liqela lee-polymers ezinyibilikayo emanzini ezithathwe kwi-cellulose, i-polymer yendalo efumaneka eludongeni lweeseli zezityalo. Umthombo ophambili wee-cellulose ethers yi-pulp yomthi, kwaye zisetyenziswa kakhulu kumashishini ahlukeneyo, kuquka amayeza, ukutya, ulwakhiwo, ingakumbi ishishini lephepha.
2. Iimpawu ze-cellulose ether:
a. Ukunyibilika kwamanzi:
Enye yezona mpawu ziphambili zee-cellulose ethers kukunyibilika kwamanzi. Le mpawu izenza zisasazeke lula emanzini, nto leyo eyenza kube lula ukudibana kwazo ne-pulp.
b. Ubuchule bokwenza ifilimu:
Ii-ether ze-cellulose zinezakhono zokwenza ifilimu ezinceda ekuphuculeni iipropati zomphezulu kunye nokuphucula umgangatho wephepha liphela.
c. Ukuqina kunye nokubopha:
Ii-cellulose ethers zisebenza njengezithambisi, zinyusa uburhabaxa be-pulp. Olu phawu luluncedo ekulawuleni ukuhamba kwe-pulp ngexesha lenkqubo yokwenza iphepha. Ukongeza, zisebenza njengezincamathelisi, zikhuthaza ukunamathelana kweefayibha ephepheni.
d. Isitali:
Ezi ethers zibonisa uzinzo phantsi kweemeko ezahlukeneyo, kuquka ubushushu kunye notshintsho lwe-pH, nto leyo enceda ekuphuculeni ukuthembeka kwazo kwinkqubo yokwenza iphepha.
3..Indima yee-ether ze-cellulose kwishishini lephepha:
a. Ukuphuculwa kokugcinwa kwamanzi kunye nokuphuculwa kokukhupha amanzi:
Ii-cellulose ethers zaziwa ngokukwazi kwazo ukuphucula ukugcinwa kwepulp kunye nokuphuma kwamanzi ngexesha lenkqubo yokwenza iphepha. Oku kuphucula ukuba tyaba kwephepha kwaye kunciphisa ukusetyenziswa kwamanzi.
b. Ukuqinisa:
Ukongezwa kwee-cellulose ethers kuphucula iimpawu zokuqina kwephepha, kubandakanya amandla okuxinana, amandla okuqhuma kunye nokumelana nokukrazuka. Oku kubaluleke kakhulu ekuveliseni iphepha elisemgangathweni ophezulu elifanelekileyo kwiintlobo ngeentlobo zezicelo.
c. Ubungakanani bomphezulu:
Ii-cellulose ethers zisetyenziswa kwiifomyula zobukhulu bomphezulu ukunceda ukudala umphezulu ogudileyo nofanayo ephepheni. Oku kuphucula ukuprintwa kunye nokubonakala kwemveliso yokugqibela.
d. Ulawulo lokufunxwa kweyinki:
Kwiinkqubo zokuprinta, ii-cellulose ethers zinceda ekulawuleni ukufunxwa kwe-inki, zithintele ukusasazeka kakhulu kwaye ziqinisekise umgangatho wokuprinta ocacileyo.
e. Ulawulo lwe-porosity yephepha:
Ii-cellulose ethers zinceda ukulawula ukuvuleka kwephepha ngokuchaphazela ukwakheka kwesakhiwo sephepha. Oku kubalulekile kwiindlela ezifana nephepha lokucoca.
f. Ukugcina izinto kunceda ekuzaliseni nasekufakeni izithako:
Ii-cellulose ethers zisebenza njengezixhobo zokugcina izinto ezizalisa kunye nezinye izongezo kwinkqubo yokwenza iphepha. Oku kuqinisekisa ukuba ezi zithako zigcinwa ngokufanelekileyo kwisakhiwo sephepha.
4. Ukusetyenziswa kwe-cellulose ether kwiimveliso zephepha:
a. Ukuprinta nokubhala iphepha:
Ii-cellulose ethers zisetyenziswa kakhulu ekuveliseni amaphepha okuprinta nokubhala ukuze kufezekiswe umgangatho ofanelekileyo wokuprinta, ukuguda kunye neempawu zomphezulu.
b. Iphepha lokusonga:
Kwiiphepha zokupakisha, ii-cellulose ethers zinceda ekonyuseni amandla, ziqinisekisa ukuba iphepha liyakwazi ukumelana nobunzima bokupakisha nokuthumela.
c.Izicubu:
Ii-cellulose ethers zinika iphepha langasese ukuthamba, amandla kunye nokufunxa. Ezi mpawu zibalulekile kwizicubu zobuso, iphepha langasese kunye nezinye iimveliso zezicubu.
d. Iphepha elikhethekileyo:
Amaphepha akhethekileyo, afana nephepha lesihluzi, iphepha lokukhusela umbane, kunye nephepha lezonyango, adla ngokubandakanya ii-cellulose ethers ukuze ahlangabezane neemfuno ezithile zokusebenza.
5. Izinto eziqwalaselwayo malunga nokusingqongileyo:
a. Ukubola kwezinto eziphilayo:
Ii-cellulose ethers zihlala zibola, ngokuhambelana nemfuno ekhulayo yeshishini lephepha yeendlela ezinobuhlobo nokusingqongileyo nezizinzileyo.
b. Amandla avuselelekayo:
Ekubeni ii-cellulose ethers zifumaneka kwi-pulp yomthi, ubutyebi obuvuselelekayo, ukusetyenziswa kwazo kunceda ekuzinzeni kwenkqubo yokuvelisa iphepha.
Ii-cellulose ethers zidlala indima ebanzi kushishino lwephepha, zichaphazela zonke iinkalo zokuveliswa kwephepha kwaye zinceda ekudaleni iimveliso zephepha ezikumgangatho ophezulu. Ukunyibilika kwazo emanzini, amandla okwenza ifilimu, kunye nezinye iimpawu ezikhethekileyo zenza zibe zezona zongezo zibalulekileyo kwinkqubo yokwenza iphepha. Njengoko ishishini lephepha liqhubeka nokukhula, ukubaluleka kwee-cellulose ethers ekuphuculeni umgangatho wephepha, ukusebenza kunye nokuzinza kunokwenzeka ukuba kuqhubeke kwaye kukhule.
Ixesha leposi: Jan-15-2024