Ziziphi iingenelo ze-cellulose ethers malunga nokuqina kunye nokusebenza?

I-Cellulose Ether (i-CE) yinto eguquliweyo yepolymer ephuma kwi-cellulose yendalo kwaye isetyenziswa ngokubanzi kwizinto zokwakha, iingubo, amayeza, izimonyo kunye nezinye iinkalo. Kukho iintlobo ezahlukeneyo ze-cellulose ethers, eziqhelekileyo ziquka i-hydroxypropyl methylcellulose (HPMC), i-hydroxyethyl cellulose (HEC) kunye ne-methylcellulose (MC). Kwizicelo ezahlukeneyo, i-cellulose ethers ibonise inzuzo ebalulekileyo malunga nokuqina kunye nokusebenza, ibe yinto ebalulekileyo ekuphuculeni umgangatho wezinto eziphathekayo kunye nobomi benkonzo.

1. Ukuphucula ukusebenza kolwakhiwo

Kwintsimi yezinto zokwakha, i-cellulose ethers isetyenziswa rhoqo njenge-thickeners, i-agent egcina amanzi kunye nezibophelelo. Kwi-mortar, i-gypsum kunye ne-cement-based based-cement effect, i-ether ye-cellulose ether yenza izinto ezimanzi kunye neplastiki ngexesha lokwakha, ukuphepha ukuphuma kwegazi kunye neengxaki zokwahlula. I-ether ye-cellulose iphinda iphucule amandla okubambisana kwezinto, ukuqinisekisa ukuba izinto eziphathekayo zinokusasazwa ngokulinganayo ngexesha lomsebenzi wokwakha kwaye ube nokunamathela okungcono kwi-substrate.

I-Hydroxypropyl methylcellulose (HPMC) inokuphucula kakhulu ukusebenza kodaka, okwenza kube lula ukuyifaka kunye nokuncinci ukutyibilika phantsi, ngakumbi kulwakhiwo oluthe nkqo. Ukongezelela, umphumo wokunciphisa i-cellulose ether unokwandisa ixesha lokusebenza lodaka, olunenzuzo kulwakhiwo oluchanekileyo lweeprojekthi ezinzima. Ezi mpawu ziphucula ngakumbi ukusebenza kakuhle kunye nomgangatho malunga nokunciphisa inkunkuma yezinto eziphathekayo kunye neempazamo zokwakha.

2. Ukugcinwa kwamanzi okugqwesileyo

Enye yezinto ezibalulekileyo ze-cellulose ethers yimpawu zabo ezigqwesileyo zokugcina amanzi. Ukugcinwa kwamanzi kubhekiselele kwisakhono se-cellulose ether ukufunxa nokugcina ukufuma kwizinto eziphathekayo, ukuthintela ukuvela komphunga kwangaphambi kwexesha okanye i-seepage yokufuma, ngaloo ndlela iqinisekisa amandla kunye nokuqina kwezinto emva kokwakhiwa. Kwizinto zokwakha ezifana ne-samente-based based and gypsum-based-based, isiphumo sokugcina amanzi se-cellulose ether siqinisekisa ukuba amanzi anokuthatha inxaxheba ngokupheleleyo kwinkqubo yokuphendula ngexesha lokuphendula kwe-hydration, ukuphepha ukuchithwa kwezinto kunye nokungonelanga kwamandla okubangelwa ukulahleka kwamanzi kwangaphambi kwexesha.

Iipropati zokugcina amanzi zibaluleke kakhulu kulwakhiwo oluncinci. Ngokomzekelo, ngexesha le-tile, i-cellulose ethers inokunceda ukukhusela umswakama kwi-mortar ukuba ulahlekelwe ngokukhawuleza, ngaloo ndlela uphucula ukunamathela kunye nokuqina kweethayile. Ngokufanayo, kwintsimi yeengubo, i-cellulose ethers inokuthintela ukuvela komswakama ngaphambi kwexesha, ukuvumela ukuba i-coating yenze i-uniform kunye ne-dense surface, yandisa ubomi bokutya kunye nokunciphisa imfuno yokugcinwa kwexesha elizayo.

3. Ukuphucula ukuxhathisa kwemozulu kwezixhobo

Ukusetyenziswa kwe-cellulose ethers kunokonyusa ubume bemozulu besixhobo, oko kukuthi, ukuxhathisa kwayo kwizinto ezisingqongileyo ezifana nokufuma, imitha ye-UV, imozulu kunye namaqondo obushushu agqithisileyo. Oku kubalulekile ekuzinzeni kwexesha elide lezinto zokwakha. Ngokomzekelo, ukusetyenziswa kwe-cellulose ethers kwiingubo kunokuphucula umgangatho wokwenza ifilimu ye-coating kunye nokwandisa ukuxinana kwengubo, ngaloo ndlela kuphuculwe ukuchasana kwe-coating kwimitha ye-ultraviolet kunye nokuthintela ukubola kunye nokuguga.

Kwizinto ezisekelwe kwi-cement, i-cellulose ether inokuphucula ukugcinwa kwamanzi, ukunciphisa impembelelo yokunciphisa ukomisa ngexesha lokuqina kwe-samente, kunye nokunciphisa umngcipheko wokuqhekeka, ngaloo ndlela kuphuculwe ukuxhathisa kweqhwa kunye nokumelana nesimo sezulu. Oku kuvumela isakhiwo ukuba sigcine ingqibelelo yesakhiwo kunye ne-aesthetics ixesha elide kwiimeko zemozulu ezinzima.

4. Ukuqina okugqwesileyo kunye nohlengahlengiso lwe-rheology

Isiphumo sokutyeba se-cellulose ether kwisisombululo esinamanzi sivumela ukulungelelanisa iimpawu ze-rheological zezinto (ezifana ne-viscosity, uxinzelelo lwesivuno, njl.), Ngaloo ndlela kuphuculwe ukuzinza kunye nokulula kokusetyenziswa kwezinto. Kwiingubo kunye neepeyinti, i-cellulose ethers ilungelelanisa i-viscosity yepeyinti ukuqinisekisa ukuba ayigxumi okanye ithontsize ngexesha lokufaka isicelo kwaye yenza ukugudiswa, nokubamba. Oku akuphuculi kuphela ukulawulwa kolwakhiwo, kodwa kwandisa kakhulu ukunyanzeliswa kokugqoka kunye nokuchasana nokuqhekeka kwengubo.

I-cellulose ethers nayo idlala indima ephambili kwizixhobo zomgangatho wokuzilinganisa. Ukuqina kwayo kunye nemisebenzi yohlengahlengiso lwe-rheological iqinisekisa ukuba izinto zigcina i-fluidity elungileyo kunye neempawu zokuzilinganisa ngexesha lenkqubo yokugalela, ukunciphisa isizukulwana samaqamza kunye neziphene, kwaye ekugqibeleni kuphuculwe ukucaba kunye nokuqina komgangatho.

5. Ukuphucula ukuxhathisa kokuqhekeka kwezinto

Ukugcinwa kwamanzi kunye nemiphumo ekhulayo ye-cellulose ether inceda ukulawula isantya sokumisa kwezinto kwaye ugweme ukucutheka kunye neengxaki eziqhekezayo ezibangelwa ukulahleka komswakama obuninzi. Ngokukodwa kwi-mortar kunye ne-cement-based based materials, i-cellulose ether inokusasaza ngokulinganayo umswakama kwizinto eziphathekayo kunye nokunciphisa ukwenzeka kokuqhekeka kwe-shrinkage. Ukongeza, iipropathi zayo eziphuculweyo zokudibanisa zikwavumela ukuba izinto eziphathekayo zibe ngcono kwibhondi kunye ne-substrate kunye nokwandisa ukuxhathisa kokuqhekeka kwesakhiwo sonke.

Kwizinto ezisekelwe kwi-gypsum, i-cellulose ethers ikhusela ukuqhekeka kwendawo okubangelwa ukulahleka kwamanzi ngokukhawuleza, okwenza udonga kunye neengubo zokulala zizinzile kwaye zigudileyo ngexesha lokumisa. Oku kuxhathisa ukuqhekeka akuphuculi kuphela umgangatho wembonakalo yezinto, kodwa kwandisa ubomi bayo benkonzo.

6. Ukuphucula ukunganyangeki kwe-corrosion kunye nokumelana neekhemikhali

I-cellulose ethers inokuphucula ukubola kunye nokumelana neekhemikhali zezinto kwizicelo ezithile. Ngokwenza izinto ezixineneyo kunye nokunganyangeki kwamanzi, i-cellulose ethers inokunciphisa ngempumelelo ukuhlaselwa kweekhemikhali ezinobungozi okanye ukufuma kwizinto. Oku kubaluleke kakhulu kwiindawo ezithile ezikhethekileyo, ezifana nezityalo zekhemikhali, iindawo zaselwandle okanye iindawo ezinobumanzi obuphezulu.

Ukusetyenziswa kwe-cellulose ethers kwi-coatings engangeni manzi akugcini nje ukuphucula ukuqina kwengubo, kodwa kwandisa ukuchasana kweekhemikhali ezifana ne-acids, alkalis, kunye neetyuwa, ngaloo ndlela ukwandisa ubomi benkonzo yezinto kunye nokunciphisa iindleko zokulungiswa kunye nokutshintshwa.

7. Ukhuseleko lwendalo esingqongileyo kunye nophuhliso oluzinzileyo

I-cellulose ether iyinto eluhlaza kwaye ihambelana nokusingqongileyo kuba iphuma kwi-cellulose yezityalo zendalo kwaye i-biodegradable. Xa kuthelekiswa nezixhobo zepolymer zokwenziwa, ii-cellulose ethers zinempembelelo encinci kwindalo kwaye azikhuphi izinto ezinobungozi ngexesha lenkqubo yokuvelisa. Ngoko ke, ukusetyenziswa okubanzi kwee-cellulose ethers kuhlangabezana neemfuno zangoku zokukhuselwa kwendalo kunye nophuhliso oluzinzileyo kwishishini lokwakha.

Iingenelo ze-cellulose ethers malunga nokuqina kunye nokusebenza zibonakaliswa ngokugqwesileyo kokugcinwa kwamanzi, ukuqina, ukunamathela kunye nokumelana nemozulu. Ayiphuculi nje kuphela ukusebenza kolwakhiwo lwezixhobo zokwakha, kodwa ikwanyusa kakhulu ukuxhathisa kokuqhekeka kwezinto, ukuqina kunye nokumelana nokubola, kwaye yandisa ubomi benkonzo yezinto. Ukongezelela, iipropati eziluhlaza kunye nokusingqongileyo kwe-cellulose ether nazo zenza ukuba zibe yinxalenye ebalulekileyo yokuphuhliswa kwezinto zokwakha ezizayo.