I-Hydroxypropyl Methyl Cellulose esetshenziswa ekwakheni?

I-Hydroxypropyl Methyl Cellulose (HPMC)iyi-non-ionic cellulose ether enezinhlelo zokusebenza eziningi nezibalulekile embonini yokwakha. Ngenxa yokugcinwa kwayo kwamanzi okuhle, ukuqina, ukunamathela, ukwakha ifilimu kanye nokucutshungulwa kalula, i-HPMC isetshenziswa kabanzi ku-cement mortar, izinto ezisekelwe ku-gypsum, izinamathiselo zamathayela, phansi ezizilinganisayo, izembozo ezingangeni manzi kanye neminye imikhiqizo yokwakha, futhi isibe yisithasiselo esibalulekile ku-dry-mixed mortar yesimanje.

1. Izindawo eziyinhloko zokusetshenziswa kwe-HPMC ekwakheni

1.1. Udaka lukasimende kanye nodaka oluxutshwe okomile

Indima ebaluleke kakhulu ye-HPMC ku-samente mortar ukuthuthukisa ukugcinwa kwamanzi kanye nokusebenza kokwakhiwa. Ngesikhathi sokwakhiwa kwe-samente mortar, i-HPMC ingavimbela amanzi ukuthi amuncwe ngokushesha yisisekelo noma umoya, ngaleyo ndlela iqinisekise ukuthi i-samente imanzi ngokuphelele futhi ithuthukise amandla e-samente. Ngesikhathi esifanayo, ingathuthukisa futhi ukugeleza nokusebenza kwe-samente, futhi igweme izinkinga ezifana nokuqhekeka nokuqhekeka.

Ku-mortar exutshwe okomile, i-HPMC idlala izindima ezilandelayo ezibalulekile:

Thuthukisa ukugcinwa kwamanzi futhi uthuthukise amandla nokuqina esigabeni sakamuva sokwakhiwa;

Thuthukisa ukuthambisa nokusebenza kahle, okwenza kube lula ukuklwebha udaka;

Thuthukisa ukuvimbela ukugoba, okubaluleke kakhulu ku-mortar esetshenziselwa ukwakhiwa kwe-facade.

1.2. Ingcina yethayela kanye ne-grout yethayela

Ukwengeza i-HPMC ku-adhesive yethayela kunganikeza ukumelana okuhle kokushelela kanye nokunamathela kokuqala, kuqinisekise ukuthi amathayela anamathiselwe ngaphandle kokushelela, futhi kuthuthukise ikhwalithi yokugandaya. Ngesikhathi esifanayo, i-HPMC inikeza i-adhesive yethayela isikhathi esihle sokuvula esibambezelekile kanye nokuguquguquka, okwenza ifaneleke kumathayela amakhulu kanye nezindawo zokwakha ezishisa kakhulu.

Ukwengeza i-HPMC ku-grout yethayela kungathuthukisa ukuzinza kwayo kokugcina, ukusebenza kahle kanye nokungabi namanzi, futhi kuvimbele ngempumelelo i-grout ukuthi inciphe noma ibe yimpuphu ngesikhathi senqubo yokomisa.

1.3. Imikhiqizo esekwe ku-Gypsum

I-HPMC iyisiguquli esifanelekile se-gypsum plaster, ibhodi le-gypsum, kanye ne-gypsum putty. Umphumela wayo wokugcina amanzi unganciphisa izinga lokumanzisa kwe-gypsum, wenze lula imisebenzi yokwakha, futhi uvimbele imifantu ebangelwa ukoma ngokushesha kakhulu. Ku-gypsum efuthwe ngomshini, i-HPMC inganikeza nokuphampa okuhle kanye nokunamathela okuqondile.

1.4. Isitezi esizilinganisayo

Udaka oluzilinganisa ludinga ukugeleza okuphezulu kanye nokuqina. I-HPMC ingalawula ngempumelelo i-rheology, ivimbele ukuvuza kwamanzi kanye nokuchitheka kwawo, futhi igcine ukugeleza kwamanzi kuzinzile, okwenza ukuhleleka komhlaba kube lula futhi kusebenze kahle.

1.5. Uhlelo Lokuvikela Lwangaphandle (i-EIFS)

Ohlelweni lokuvikela udonga lwangaphandle, i-HPMC ivame ukusetshenziswa ku-bonding mortar kanye ne-plastering mortar ukuze kuthuthukiswe ukumelana kwayo nokuqhekeka, ukuguquguquka kanye nokumelana nesimo sezulu. I-HPMC ingaqinisekisa futhi ukubopha okuthembekile phakathi kwebhodi lokuvikela kanye nesendlalelo esiyisisekelo, kwandise impilo yonke yesistimu.

1.6. Ukugqoka okungangenwa manzi

Ukwengeza i-HPMC embozweni ongangeni manzi osekelwe emanzini akugcini nje ngokuthuthukisa ukuzinza kanye nezakhiwo zokwakha ifilimu zembozo, kodwa futhi kuthuthukise ukushelela kanye nokufana kokwakhiwa. Ikakhulukazi ezintweni ezingangeni manzi ezisekelwe kusimende, i-HPMC ingathuthukisa ukuguquguquka okuphelele kanye namandla okubopha futhi ivimbele ukuvuza kwamanzi emifantwini emincane.

2. Indlela eyinhloko yokusebenza kwe-HPMC

2.1.Ukugcinwa kwamanzi:

I-HPMC inekhono elihle kakhulu lokumunca amanzi kanye nekhono lokukhiya amanzi, elingagcina amanzi adingekayo ukuze kufakwe usimende noma i-gypsum ezindaweni eziyisisekelo ezinezimbobo noma ngaphansi kwezimo zokushisa eziphakeme nezomile, okusiza ekuthuthukiseni amandla okugcina kanye nokumelana nokuqhekeka.

2.2Umphumela wokujiya:

I-HPMC ingathuthukisa kakhulu ukujiya kanye nokuqina kodaka lwesakhiwo, ngaleyo ndlela ithuthukise ukusebenza kokwakhiwa, yenze izinto zingabi lula ukugoba futhi kube lula ukuzisebenzisa.

2.3Thuthukisa ukusebenza kokwakha:

I-HPMC inikeza izinto zokwakha ukugcotshwa okuhle nokusebenza kahle, okwenza ukuklwebha nokugcotshwa kube lula futhi kube bushelelezi.

2.4Ukusebenza okuthuthukisiwe kokubopha:

Ngokuthuthukisa amandla okubopha phakathi kwe-interfacial, i-HPMC ingathuthukisa amandla okunamathela kodaka ezintweni ezifana nesisekelo noma amathayili.

2.5Isikhathi sokuvulwa esinwetshiwe:

Ezindaweni ezinokushisa okuphezulu noma ezomile emoyeni, i-HPMC ingayibambezela ukuhwamuka kwamanzi, inikeze abasebenzi isikhathi eside sokusebenza futhi ithuthukise ukusebenza kahle kobunjiniyela.

2.6Impahla yokwakha amafilimu:

I-HPMC ingakha ifilimu yokuvikela efanayo neqinile ngemva kokomiswa, ithuthukise ukumelana nokuguguleka, ukumelana namanzi kanye nokumelana nesimo sezulu kwezimbozo noma izimbozo. Njengesengezo esibalulekile esisebenzayo ezintweni zokwakha zesimanje,

i-hydroxypropyl methylcellulose (HPMC) idlala indima ebalulekile ekuthuthukiseni ukusebenza kahle kokwakha, ukuthuthukisa ukusebenza komkhiqizo nokwandisa isikhathi senkonzo. Kungakhathaliseki ukuthi kusezinhlelweni zendabuko zodaka noma ezintweni zokwakha zesimanje ezixutshwe okomile, ukuzilinganisa, ukuvimbela amanzi kanye neminye imikhiqizo yokwakha esebenza kahle, i-HPMC ikhombisa ukuzivumelanisa nezimo okunamandla kanye nekhono lokuthuthukisa ukusebenza kahle. Ngokuthuthuka kwezinto zokwakha eziluhlaza kanye nokuthuthukiswa kwezimboni zokwakha, izimo zokusetshenziswa kanye nenani le-HPMC kuzoqhubeka nokukhula.