Focus on Cellulose ethers

I-ether yesitatshi isetyenziselwa ntoni?

Isitatshi etherisetyenziswa ikakhulu kudaka lolwakhiwo, olunokuthi luchaphazele ukuhambelana kodaka olusekelwe kwi-gypsum, i-samente kunye nekalika, kwaye utshintshe ulwakhiwo kunye nokumelana nodaka lodaka. Ii-ethers zesitatshi zidla ngokusetyenziswa kunye ne-ethers ye-cellulose engaguqukiyo kunye ne-modified. Ifanelekile kwiinkqubo zombini ezingathathi hlangothi kunye ne-alkaline, kwaye iyahambelana nezongezo ezininzi kwi-gypsum kunye neemveliso zesamente (njengama-surfactants, i-MC, isitashi kunye ne-polyvinyl acetate kunye nezinye iipolymers ezinyibilikayo emanzini).

 

Iimpawu ze-starch ether ikakhulu zikwi:

(1) Ukuphucula ukuxhathisa kwe-sag;

(2) Ukuphucula indlela yokwakha;

(3) Isivuno esiphezulu sodaka.

 

Nguwuphi umsebenzi ophambili we-starch ether kwi-gypsum-based dry mortar?

Isitatshi se-ether sesinye sezongezo eziphambili zodaka lomgubo owomileyo. Iyakwazi ukuhambelana nezinye izongezo. Isetyenziswe ngokubanzi kwi-adhesives ye-tile, i-mortars yokulungisa, i-gypsum yokubeka, i-putty yangaphakathi kunye yangaphandle yodonga, i-gypsum-based caulking kunye ne-filling materials, i-interface agents, i-masonry Kwi-mortars, ifanelekile ukusetyenziswa kwesandla okanye ukutshiza nge-samente-based okanye i-gypsum. udaka olusekwe. Isebenza ngolu hlobo lulandelayo:

 

(1) Isitatshi i-ether idla ngokusetyenziswa ngokudibeneyo ne-methyl cellulose ether, ebonisa umphumo omhle we-synergistic phakathi kwezi zibini. Ukongeza ubungakanani obufanelekileyo be-starch ether kwi-methyl cellulose ether kunokuphucula kakhulu ukuxhathisa kwe-sag kunye nokumelana nokutyibilika kodaka, ngexabiso eliphezulu lesivuno.

(2) Ukongeza isixa esifanelekileyo se-ether yesitatshi kudaka olune-methyl cellulose ether kunokwandisa kakhulu ukuhambelana kodaka, kuphucule ukumanzi, kunye nokwenza ulwakhiwo lube lula kwaye lugudileyo.

(3) Ukongeza isixa esifanelekileyo se-ether yesitatshi kudaka olune-methyl cellulose ether kunokunyusa ukugcinwa kwamanzi kudaka kunye nokwandisa ixesha elivulekileyo.

 

Ziziphi iingenelo zokusetyenziswa kunye neendlela zokugcina isitashi se-ether?

Ingasetyenziselwa njengengxube yeemveliso ezisekelwe kwisamente, iimveliso ezisekelwe kwi-gypsum kunye neemveliso ze-ash-calcium.

 

(1) Izinto eziluncedo kunye nokusetyenziswa:

a. Inomphumo wokuqina kwi-mortar, inokutyeba ngokukhawuleza, kwaye i-lubricity elungileyo;

b. I-dosage incinci, kwaye idosi ephantsi kakhulu inokufezekisa umphumo ophezulu;

c. Ukuphucula isakhono sokuchasana nesilayidi sodaka oludityanisiweyo;

d. ukwandisa ixesha elivulekileyo lezinto eziphathekayo;

e. Ukuphucula ukusebenza kwezinto eziphathekayo kwaye wenze umsebenzi ube lula.

 

(2) Ugcino:

Imveliso ichaphazeleka kukufuma kwaye kufuneka igcinwe kwindawo eyomileyo nepholileyo kwipakethe yokuqala. Kungcono ukuyisebenzisa kwiinyanga ezili-12. (Kuyacetyiswa ukuba isetyenziswe kunye ne-high-viscosity cellulose ether, kunye nomlinganiselo jikelele we-cellulose ether kwi-starch ether yi-7: 3 ~ 8: 2)


Ixesha lokuposa: Jan-09-2023
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