I-Real Stone Paint ene-Cellulose Ether

Kuxoxwa ngomthelela yenani le-cellulose ether, isisindo samangqamuzana ahlobene nendlela yokuguqula endaweni emunca amanzi kanye nokuba mhlophe kopende wetshe wangempela kuyaxoxwa ngakho, kanye ne-cellulose ether enokumelana okungcono kakhulu kombala wamatshe omhlophe ongcono kakhulu kuyahlolwa, futhi ukusebenza okuphelele kopende lwamatshe wangempela kuyahlolwa ukutholwa.

Amagama angukhiye:upende wamatshe wangempela;ukumelana nokuhlanza amanzi;i-cellulose ether

0,Isandulela

I-varnish yetshe yangempela iyi-synthetic resin emulsion sand wall coating eyenziwe nge-granite yemvelo, itshe elichotshoziwe kanye nempushana yetshe njenge-aggregate, i-synthetic resin emulsion njengento eyisisekelo futhi ingezwe ngezithasiselo ezihlukahlukene.Inomphumela wokuthungwa nokuhlobisa kwetshe lemvelo.Kuphrojekthi yokuhlobisa yangaphandle yezakhiwo eziphakeme, ithandwa iningi labanikazi nabakhi.Kodwa-ke, ezinsukwini zemvula, ukumuncwa kwamanzi nokuba mhlophe sekube yinkinga enkulu yopende wamatshe wangempela.Nakuba kunesizathu esikhulu se-emulsion, ukungezwa kwenani elikhulu lezinto ze-hydrophilic ezifana ne-cellulose ether kukhulisa kakhulu ukumuncwa kwamanzi kwefilimu yepende yamatshe yangempela.Kulolu cwaningo, kusukela ezandleni ze-cellulose ether, ithonya lenani le-cellulose ether, isisindo samangqamuzana esihlobene kanye nohlobo lokuguqulwa kumkhuba wokumunca amanzi nomhlophe wopende wamatshe wangempela wahlaziywa.

1. Indlela yokumuncwa kwamanzi nokuba mhlophe kopende wamatshe wangempela

Ngemuva kokuthi upende wangempela wamatshe womile, ujwayele ukuba mhlophe lapho uhlangana namanzi, ikakhulukazi esigabeni sokuqala sokumisa (12h).Esimeni sezulu semvula, ukumboza kuzoba thambile futhi kube mhlophe ngemuva kokugezwa yimvula isikhathi eside.Isizathu sokuqala ukuthi i-emulsion ithatha amanzi, kanti eyesibili ibangelwa izinto ze-hydrophilic ezifana ne-cellulose ether.I-cellulose ether inemisebenzi yokujiya nokugcina amanzi.Ngenxa yokuhlanganiswa kwama-macromolecules, ukugeleza kwesisombululo kuhlukile ku-Newtonian fluid, kodwa kubonisa ukuziphatha okushintshayo ngokushintsha kwamandla okugunda, okungukuthi, kune-thixotropy ephezulu.Thuthukisa ukusebenza kokwakhiwa kopende wamatshe wangempela.I-Cellulose yakhiwa i-D-glucopyranosyl (anhydroglucose), futhi ifomula yayo elula yamangqamuzana ithi (C6H10O5)n.I-cellulose ether ikhiqizwa i-cellulose alcohol hydroxyl group ne-alkyl halide noma enye i-etherification agent ngaphansi kwezimo ze-alkali.Isakhiwo se-ether ye-Hydroxyethyl cellulose, inani elimaphakathi lamaqembu e-hydroxyl ashintshwe ama-reagents ngeyunithi ngayinye ye-anhydroglucose kuketango lamangqamuzana e-cellulose libizwa ngokuthi izinga lokushintshwa, amaqembu e-hydroxyl angu-2, 3, na-6 wonke athathelwa indawo, futhi izinga eliphezulu lokushintshwa ngu-3. Amaqembu e-hydroxyl yamahhala echungechungeni lwemolekyuli ye-cellulose ether angasebenzisana ukuze akhe amabhondi e-hydrogen, futhi angasebenzisana namanzi ukuze akhe amabhondi e-hydrogen.Ukumuncwa kwamanzi nokugcinwa kwamanzi kwe-cellulose ether kunomthelela oqondile ekumunceni kwamanzi nokuba mhlophe kopende wetshe wangempela.Ukumuncwa kwamanzi nokusebenza kokugcinwa kwamanzi kwe-cellulose ether kuncike ezingeni lokushintsha i-cellulose, ama-substituents kanye nezinga le-polymerization ye-cellulose ether ngokwayo.

2. Ingxenye yokuhlola

2.1 Amathuluzi okuhlola kanye nemishini

Umshini we-JFS-550 onemisebenzi eminingi yokunyakazisa kancane, ukuhlakazeka kwesivinini esikhulu nokugaya isihlabathi: I-Shanghai Saijie Chemical Equipment Co., Ltd.;Ibhalansi kagesi ye-JJ2000B: I-Changshu Shuangjie Testing Instrument Factory;Umshini wokuhlola umhlaba wonke we-CMT-4200: Inkampani ye-Shenzhen Sansi Experimental Equipment Co., Ltd.

2.2 Ifomula yokuhlola

2.3 Inqubo yokuhlola

Faka amanzi, i-defoamer, i-bactericide, i-antifreeze, i-film-forming aid, i-cellulose, isilawuli se-pH kanye ne-emulsion ku-disperser ngokuvumelana nefomula ukuze uhlakazeke ngokulinganayo, bese ufaka isihlabathi esinemibala bese ugoqa kahle, bese usebenzisa inani elifanele lokujiya Lungisa i-viscosity. , hlakazeka ngokulinganayo, futhi uthole upende wamatshe wangempela.

Yenza ibhodi ngopende wamatshe wangempela, futhi wenze ukuhlolwa kwamanzi okumhlophe ngemva kokuphulukisa amahora angu-12 (ukucwiliswa emanzini amahora angu-4).

2.4 Ukuhlolwa kokusebenza

Ngokusho kwe-JG/T 24-2000 "Synthetic Resin Emulsion Sand Wall Paint", ukuhlolwa kokusebenza kuyenziwa, kugxile ekuphikiseni okumhlophe kwamanzi kwamapende amatshe ahlukene e-hydroxyethyl cellulose ether, nezinye izinkomba zobuchwepheshe kufanele zihlangabezane nezidingo.

3. Imiphumela kanye nengxoxo

Ngokwezici zokusebenza ze-hydroxyethyl cellulose ether, imiphumela yenani le-hydroxyethyl cellulose ether, isisindo samangqamuzana esihlobene kanye nendlela yokuguqula ekumelaneni nokuba mhlophe kwamanzi kapende wamatshe wangempela kwacwaningwa ngokugcizelela.

3.1 Umphumela womthamo

Ngokukhula kwenani le-hydroxyethyl cellulose ether, ukumelana nokuba mhlophe kwamanzi kapende wangempela wetshe kuya ngokuya wonakala.Uma sikhulu inani le-cellulose ether, inani lamaqembu e-hydroxyl yamahhala liyanda, amanzi amaningi azokwakha izibopho ze-hydrogen nayo, izinga lokumunca amanzi lefilimu yopende lwamatshe langempela lizokhula, futhi ukumelana kwamanzi kuzokwehla.Amanzi amaningi efilimu kapende, kuba lula ukwenza ubuso bube mhlophe, ngakho-ke ukumelana nokukhanya kwamanzi kuba kubi kakhulu.

3.2 Umthelela wesisindo se-molecular mass

Lapho inani lama-ether e-hydroxyethyl cellulose anenqwaba yamangqamuzana ahlobene ahlukile.Uma ubukhulu bengqamuzana obuhlobene buba bukhulu, kuba kubi nakakhulu ukumelana nokuba mhlophe kwamanzi kapende wetshe wangempela, okubonisa ukuthi isisindo samangqamuzana esihlobene se-hydroxyethyl cellulose ether sinomthelela ekumelaneni nokuba mhlophe kwamanzi kapende wetshe wangempela.Lokhu kungenxa yokuthi amabhondi amakhemikhali > amabhondi e-hydrogen > van der Waals force, iba nkulu inqwaba yamangqamuzana e-cellulose ether, okungukuthi, izinga le-polymerization likhulu, izibopho zamakhemikhali ezengeziwe ezakha inhlanganisela yamayunithi e-glucose, futhi kukhulu amandla okusebenzelana alo lonke uhlelo ngemva kokwenza izibopho ze-hydrogen ngamanzi, lapho ukumuncwa kwamanzi kunamandla namandla okugcina amanzi, kuba kubi nakakhulu ukumelana nokuba mhlophe kwamanzi kapende wetshe wangempela.

3.3 Umthelela wendlela yokuguqula

Imiphumela yokuhlolwa ibonisa ukuthi ukuguqulwa kwe-nonionic hydrophobic kungcono kunokuqala, futhi ukuguqulwa kwe-anionic kubi kakhulu.I-non-ionic hydrophobically modified cellulose ether, ngokuxhunyelelwa amaqembu e-hydrophobic ochungechungeni lwemolekyuli ye-cellulose ether.Ngesikhathi esifanayo, ukuqina kwesigaba samanzi kufinyelelwa ngokusebenzisa i-hydrogen bonding yamanzi kanye ne-molecular chain entanglement.Ukusebenza kwe-hydrophobic kwesistimu kuncishisiwe, ukuze ukusebenza kwe-hydrophobic yopende lwamatshe wangempela kuthuthukiswe, futhi ukumelana nokukhanya kwamanzi kuyathuthukiswa.I-anionically modified cellulose ether iguqulwa yi-cellulose kanye ne-polyhydroxysilicate, ethuthukisa ukusebenza kahle kokuqina, ukusebenza kwe-anti-sag kanye nokusebenza kwe-anti-splash ye-cellulose ether, kodwa i-ionicity yayo inamandla, futhi ukumuncwa kwamanzi nokugcina amandla kuyathuthukiswa, Ukumelana nokuba mhlophe kwamanzi. kapende wamatshe wangempela uba kubi kakhulu.

4. Isiphetho

Ukumuncwa kwamanzi nokuba mhlophe kopende wamatshe wangempela kuthintwa izici eziningi ezifana nenani le-cellulose ether kanye nendlela yokuguqula yesisindo samangqamuzana ahlobene.Ukumuncwa kwamanzi nokuba mhlophe kopende wamatshe wangempela.