Zeziphi iiplastiki ezenziwe nge-cellulose ethers?

I-cellulose ethers liqela lee-polymers eziguquguqukayo nezisetyenziswa ngokubanzi ezivela kwi-cellulose, i-polysaccharide yendalo efumaneka kwiindonga zeeseli zezityalo.Ezi polima zibonakaliswe kukunyibilika kwamanzi, ukubola kwezinto eziphilayo, kunye neempawu zokwenza ifilimu.Nangona i-cellulose ethers ingasetyenziswa ngokuthe ngqo kwimveliso yeeplastiki zemveli, zidlala indima ebalulekileyo kumashishini ahlukeneyo afana namayeza, ukutya, ukwakhiwa kunye neendwangu.

I-Cellulose Ethers: Isishwankathelo
I-cellulose yeyona polymer ininzi emhlabeni, kwaye izinto eziphuma kuyo, ezibizwa ngokuba yi-cellulose ethers, zenziwa ngokuguqulwa kweekhemikhali zeemolekyuli zeselulosi.Imithombo eqhelekileyo ye-cellulose ibandakanya i-pulp yomthi, umqhaphu, kunye nezinye iintambo zezityalo.

Ezona ziphambili ze-cellulose ethers ziquka:

I-Methylcellulose (MC): Iveliswa ngokutshintshela amaqela e-hydroxyl ye-cellulose kunye namaqela e-methyl, i-MC isetyenziswa ngokubanzi kwishishini lokutya, amayeza kunye nokwakhiwa.Iyaziwa ngeempawu zayo zokugcina amanzi, okwenza ukuba ibe yinto efanelekileyo yokudibanisa kwiintlobo ezahlukeneyo zezicelo.

I-Hydroxypropylcellulose (HPC): Kule mveliso, amaqela e-hydroxyl e-cellulose athatyathwa ngamaqela e-hydroxypropyl.I-HPC isetyenziswa ngokuqhelekileyo kumayeza, izinto zokuthambisa, kunye neemveliso zokhathalelo lomntu ngenxa yokwenziwa kwefilimu kunye neempawu ezityebileyo.

I-Hydroxyethyl cellulose (HEC): I-HEC ifunyenwe ngokuzisa amaqela e-hydroxyethyl kwi-cellulose.Isetyenziswa njenge-thickener, i-binder kunye ne-stabilizer kumashishini afana ne-adhesives, iipeyinti kunye neemveliso zokhathalelo lomntu.

I-Carboxymethylcellulose (CMC): I-CMC ifunyenwe ngokutshintsha inxalenye yamaqela e-hydroxyl kunye namaqela e-carboxymethyl.Isetyenziswa kakhulu kwishishini lokutya njengento etyebisayo kunye nokuzinzisa kunye nakwishishini lamayeza ngenxa yeempawu zayo zokuncamathelisa.

Ukusetyenziswa kwe-cellulose ethers

1. Ishishini lokutya:
I-cellulose ethers, ngakumbi i-CMC, isetyenziswa ngokubanzi kwishishini lokutya ukunyusa ukuthungwa, ukuzinza kunye ne-viscosity yeemveliso ezahlukeneyo ezifana ne-ayisikrimu, i-salad yokunxiba kunye neempahla ezibhakiweyo.

2. Amachiza:
I-Methylcellulose kunye nezinye i-cellulose ethers zisetyenziselwa ukuqulunqa amayeza njengezibophelelo, i-disintegrants, kunye ne-film-forming agents ekwenzeni i-tablet.

3. Ushishino lokwakha:
I-HEC kunye ne-MC zisetyenziswa ngokuqhelekileyo kwishishini lokwakha ukuze kuphuculwe ukusebenza kodaka, i-adhesives kunye neengubo.Banceda ukuphucula ukusebenza kunye nokugcinwa kwamanzi.

4. Iimveliso zokhathalelo lomntu:
I-Hydroxypropyl cellulose kunye ne-hydroxyethyl cellulose zifumaneka kwiintlobo ezahlukeneyo zeemveliso zokunyamekela komntu ezifana ne-shampoos, i-lotions kunye nezithambiso, ezibonelela nge-viscosity kunye nokuzinza.

5. Iimpahla:
I-cellulose ethers isetyenziselwa ukuprintwa kwe-textile kunye neenkqubo zokudaya ngenxa yokuqina kwazo kunye nokuzinzisa iimpawu.

I-cellulose ethers ineenzuzo ezininzi zokusingqongileyo:

Ukonakala kwezinto eziphilayo:

Ngokungafaniyo neepolymers ezininzi zokwenziwa, ii-cellulose ethers ziyakwazi ukubola, oku kuthetha ukuba ziyaqhekeka ngeenkqubo zendalo, zinciphisa impembelelo yazo kwindalo esingqongileyo.

Umoya ovuselelekayo:

I-Cellulose, i-raw material ye-cellulose ethers, iphuma kwimithombo evuselelekayo efana nemithi kunye nemicu yezityalo.

Ukunciphisa ukuxhomekeka kwipetrochemicals:

Ukusetyenziswa kwe-cellulose ethers kwizicelo ezahlukeneyo kunciphisa ukuthembela kwi-polymers ye-petrochemical kwaye igalelo kwindlela ezinzileyo.

Imingeni kunye nezalathiso zexesha elizayo

Ngelixa i-cellulose ethers ibonelela ngeenzuzo ezininzi, kukwakho nemingeni ethile, njengokuzinza kwe-thermal okuncinci kunye notshintsho olunokwenzeka kwiipropathi ezisekelwe kumthombo we-cellulose.Uphando oluqhubekayo lujolise ekujonganeni nale mingeni kunye nokuphonononga izicelo ezintsha ze-cellulose ethers kwiindawo ezivelayo.

I-cellulose ethers ithathwe kwi-cellulose eninzi ehlaziyekayo kwaye idlala indima ebalulekileyo kumashishini ahlukeneyo.Nangona zingezizo iiplastiki zemveli, iipropathi zazo zinegalelo ekuphuhliseni iimveliso kunye neenkqubo ezihambelana nokusingqongileyo.Njengoko imizi-mveliso iqhubeka nokufuna ezinye iindlela ezizinzileyo, ii-ether ze-cellulose kusenokwenzeka ukuba zihlale ziphambili kwizinto ezintsha, eziqhubela phambili ukuqhubela phambili kwizicelo ezahlukeneyo.