Izixube zidlala indima ebalulekileyo ekuphuculeni ukusebenza kokwakha i-dry-mixed mortar. Oku kulandelayo kuhlalutya kwaye kuthelekise iimpawu ezisisiseko ze-latex powder kunye ne-cellulose, kwaye kuhlalutya ukusebenza kweemveliso ze-dry-mixed mortar kusetyenziswa izixube.
Umgubo welatex ophinda unyibilike
Umgubo welatex ophinda unyibilikeicutshungulwa ngokufuthwa nge-spray ye-polymer emulsion ekhethekileyo. Umgubo we-latex owomileyo ngamasuntswana athile angqukuva angama-80 ~ 100mm aqokelelwe ndawonye. La masuntswana ayanyibilika emanzini kwaye enza ukusasazwa okuzinzileyo okukhulu kancinci kuneesuntswana ze-emulsion zokuqala, ezenza ifilimu emva kokuphelelwa ngamanzi kunye nokomiswa.
Amanyathelo ahlukeneyo okuguqula enza ukuba umgubo we-latex ophinda uqhekeke ube neepropati ezahlukeneyo ezifana nokumelana namanzi, ukumelana ne-alkali, ukumelana nemozulu kunye nokuguquguquka. Umgubo we-latex osetyenziswa kwi-mortar unokuphucula ukumelana nempembelelo, ukuqina, ukumelana nokuguguleka, ukulula kokwakhiwa, amandla okubopha kunye nokudibana, ukumelana nemozulu, ukumelana nokuqandusela, ukungafuni manzi, amandla okugoba kunye namandla okuguquguquka kwe-mortar.
I-ether yeseli
I-Cellulose ether ligama eliqhelekileyo loluhlu lweemveliso eziveliswa yi-reaction ye-alkali cellulose kunye ne-etherifying agent phantsi kweemeko ezithile. I-alkali cellulose ithathelwa indawo zii-ethers ezahlukeneyo ze-ether ukuze kufunyanwe ii-ethers ezahlukeneyo ze-cellulose. Ngokweempawu ze-ionization zezinto ezithatha indawo, ii-ethers ze-cellulose zinokwahlulwa zibe ziindidi ezimbini: i-ionic (njenge-carboxymethyl cellulose) kunye ne-non-ionic (njenge-methyl cellulose). Ngokweentlobo ze-substituent, i-cellulose ether inokwahlulwa ibe yi-monoether (njenge-methyl cellulose) kunye ne-ether exutyiweyo (njenge-hydroxypropyl methyl cellulose). Ngokweendlela ezahlukeneyo zokunyibilika, inokwahlulwa ibe yi-water-soluble (njenge-hydroxyethyl cellulose) kunye ne-organic solvent-soluble (njenge-ethyl cellulose), njl. I-dry-mixed mortar yi-cellulose enyibilikayo emanzini ikakhulu, kwaye i-water-soluble cellulose yahlulwe ibe yi-instant type kunye ne-surface treated delayed dissolve type.
Indlela yokusebenza kwe-cellulose ether kwi-mortar yile ilandelayo:
(1) Emvai-cellulose etherKwisigqubuthelo sesinyithi sinyibilika emanzini, ukusasazwa okusebenzayo nokulinganayo kwezinto ezisigqubuthelo sesinyithi kwinkqubo kuqinisekiswa ngenxa yomsebenzi womphezulu, kwaye i-cellulose ether, njenge-colloid ekhuselayo, "isonga" amasuntswana aqinileyo kwaye Umaleko wefilimu yokuthambisa wenziwa kumphezulu wayo wangaphandle, okwenza inkqubo yesigqubuthelo sesinyithi iqine ngakumbi, kwaye iphucula ukutyibilika kwesigqubuthelo sesinyithi ngexesha lenkqubo yokuxuba kunye nokuthamba kolwakhiwo.
(2) Ngenxa yesakhiwo saso se-molecular, isisombululo se-cellulose ether senza amanzi akumotha angabi lula ukuwalahla, kwaye siyawakhupha kancinci kancinci ixesha elide, nto leyo enika umotha amandla okugcina amanzi kunye nokusebenza kakuhle.
ifayibha yomthi
I-fiber yomthi yenziwe ngezityalo njengezinto eziphambili kwaye icutshungulwa ngoluhlu lweetekhnoloji, kwaye ukusebenza kwayo kwahlukile kuleyo ye-cellulose ether. Iimpawu eziphambili zezi:
(1) Ayinyibiliki emanzini nakwizinyibilikisi, kwaye ayinyibiliki nakwizisombululo ze-asidi ebuthathaka kunye neziseko ezibuthathaka
(2) Xa isetyenziswa kwi-mortar, iya kudibana ibe yisakhiwo esinemilinganiselo emithathu kwimeko engaguqukiyo, yonyuse ukumelana kwe-thixotropy kunye nokuwa kwe-mortar, kwaye iphucule ukwakheka kwayo.
(3) Ngenxa yesakhiwo sefayibha yomthi esinobukhulu obuthathu, ineempawu "zokuvala amanzi" kwi-mortar exutyiweyo, kwaye amanzi kwi-mortar akayi kutsalwa okanye asuswe lula. Kodwa ayinayo i-cellulose ether yokugcina amanzi amaninzi.
(4) Isiphumo esihle se-capillary se-wood fiber sinomsebenzi "wokuhambisa amanzi" kwi-mortar, okwenza umphezulu kunye nomxholo wokufuma wangaphakathi kwi-mortar uhlale uhambelana, ngaloo ndlela kunciphisa iintanda ezibangelwa kukushwabana okungalinganiyo.
(5) Ifayibha yomthi inokunciphisa uxinzelelo lokuguqulwa kwesamente esiqinileyo kwaye inciphise ukushwabana nokuqhekeka kwesamente.
Ixesha leposi: Epreli-25-2024