IHydroxypropyl Methylcellulose (HPMC) yipolymer enyibilikayo esetyenziswa ngokuqhelekileyo emanzini esetyenziswa ngokubanzi kwizinto zokwakha, iingubo, amayeza, ukutya kunye nezinye iindawo. Kwimveliso yesamente, i-HPMC isetyenziswa kakhulu. Ukusebenza kwayo okukodwa kunye neempawu ezibalaseleyo zenza ukuba ibe sisongezo esiyimfuneko kwiimveliso zesamente.
1. Ukuphucula ukusebenza kunye nokusebenza kolwakhiwo
I-HPMC inokuphucula kakhulu ukusebenza kwemixube yesamente. Kwinkqubo yokuvelisa i-samente, umbane kunye nokubambisana komxube zizinto ezibalulekileyo ezichaphazela umgangatho wokwakha. I-HPMC ineempawu ezilungileyo zokusasazwa kunye nokujiya emanzini, okwenza udaka lwesamente lube lula ukushukumisa, ukugalela kunye nokugudiswa ngexesha lokwakha. Olu phuculo aluphuculi nje kuphela ukusebenza kakuhle kolwakhiwo, kodwa lunciphisa ukuveliswa kweebhubhu kunye nokuqinisekisa ukuhambelana kunye nomgangatho opheleleyo wekhonkrithi.
2. Ukuphucula ukugcinwa kwamanzi
I-HPMC ineempawu ezigqwesileyo zokugcina amanzi kwaye inokunciphisa ngokufanelekileyo ukuphuphuma kwamanzi. Oku kubalulekile kwinkqubo yokunyanga iimveliso zesamente. I-cement idinga amanzi aneleyo okusabela kwe-hydration ngexesha lenkqubo yokunyanga, kwaye ukusetyenziswa kwe-HPMC kunokwandisa ixesha lokugcinwa kwamanzi kwi-slurry ye-cement kwaye kuqinisekiswe ukuba amanzi anokungena ngokupheleleyo kwiinqununu ze-samente, ngaloo ndlela kuphuculwe amandla kunye nokuqina kwe-cement. Ngokukodwa kwiqondo lokushisa eliphezulu okanye kwindawo yokomisa umoya, ukugcinwa kwamanzi kwi-HPMC kubaluleke kakhulu.
3. Ukuphucula ukuxhathisa kokuqhekeka
Kwimveliso kunye nokusetyenziswa kweemveliso zesamente, ukuvela kweentanda kuyingxaki eqhelekileyo. Ukusetyenziswa kwe-HPMC kunokunciphisa ngokufanelekileyo ukwenzeka kweentanda. Ngenxa yokugcinwa kwayo kakuhle kwamanzi, i-HPMC inokunciphisa ukomisa ukushwabana okubangelwa ngumphunga wamanzi, ngaloo ndlela kuncitshiswe umngcipheko wokuqhekeka okubangelwa kukuncipha. Ukongeza, i-HPMC inokwenza i-uniform network structure kwi-matrix yesamente, yandise ukuqina kunye nokumelana nokuqhekeka kwezinto, kwaye iphucule ukuqina kwayo yonke into.
4. Ukuphucula ukubambelela
I-HPMC inokwandisa amandla okudibanisa phakathi kwesamente kunye ne-substrate. Ngokukodwa xa usebenzisa izinto zomgubo, iipropathi ezityebileyo ze-HPMC zinokuphucula ngokufanelekileyo ukunamathela kwe-cement slurry. Ukusetyenziswa kwe-adhesives tile, i-gypsum kunye nezinye izinto zokwakha, i-HPMC inokuqinisekisa ibhondi eqinile phakathi kwezinto eziphathekayo, ukuthintela ukugoba kunye nokuwa, kunye nokuqinisekisa umgangatho wokwakha.
5. Ukuphucula ukuhamba kunye nokusebenza
Ukongezwa kwe-HPMC kunokuphucula ngokufanelekileyo i-fluidity ye-sement slurry, okwenza umxube usasazeke ngokulinganayo kwaye kulula ukwenza ngexesha lokwakha. Ngokukodwa kwiifomyula ezinomxholo ophezulu wokuzalisa, i-HPMC inokunciphisa kakhulu i-viscosity yomxube kwaye iphucule i-fluidity yayo, ngaloo ndlela iphucula ukukhululeka kokwakhiwa. Oku kubaluleke kakhulu kulwakhiwo olukhulu, olunokuphucula ngokufanelekileyo ukusebenza kunye nomgangatho wokwakha.
6. Ukuziqhelanisa okunamandla
I-HPMC inokuguquguquka okubanzi kwaye iyahambelana neentlobo ezahlukeneyo zesamente kunye nezinye izongezo. Nokuba yisamente yasePortland eqhelekileyo, isamente yokuqina ngokukhawuleza, okanye isamente ekhethekileyo, iHPMC inokusebenzisa iingenelo zayo ngokufanelekileyo. Ukongeza, i-HPMC ingasetyenziselwa ngokudibeneyo kunye nezinye izongezo zekhemikhali (ezifana ne-air-entraining agents, ii-agent zokunciphisa amanzi, njl. njl.) ukuphucula ukusebenza okubanzi kwekhonkrithi kunye nokuhlangabezana neemfuno ezahlukeneyo zokwakha.
7. Ukuphucula ukuqina
Iimveliso zesamente ezisebenzisa i-HPMC zinokuqina okubalaseleyo. I-HPMC inokuthintela ngokufanelekileyo ukuguga kunye nomonakalo we-samente substrates kunye nokuphucula ukuxhathisa kwabo kwe-asidi kunye ne-alkali, ukuxhathisa ukufuma, kunye nokumelana nomkhenkce. Ngokunciphisa ilahleko yamanzi, i-HPMC iqinisekisa ukuba i-samente inokusabela ngokupheleleyo ngexesha lenkqubo ye-hydration, okubangela amandla amakhulu kunye nokuqina. Oku kubalulekile kusetyenziso lwexesha elide kunye nokugcinwa kwezinto zokwakha.
8. Uhlaza kunye nokusingqongileyo
Njengomathiriyeli wendalo wepolymer, i-HPMC ineempawu ezilungileyo zokhuseleko lokusingqongileyo. Akukho zinto ezinobungozi ziya kukhutshwa ngexesha lokuveliswa kunye nokusetyenziswa kwayo, kwaye ihlangabezana neemfuno zezakhiwo eziluhlaza zanamhlanje. Ngokuphuculwa okuqhubekayo kweemfuno zokhuseleko lokusingqongileyo kushishino lokwakha, ukusetyenziswa kwe-HPMC kufumene ingqalelo engakumbi nangakumbi. Iimveliso zesamente ezisebenzisa i-HPMC zifezekisa ukusebenza okuphezulu ngelixa zikwanegalelo ekukhuselweni kwendalo.
9. Ukusebenza kweendleko
Nangona ixabiso le-HPMC kwimveliso liphezulu kakhulu, izibonelelo ezininzi ezizisayo zinokunciphisa ngokufanelekileyo ukusetyenziswa kwezinye izongezo, ngaloo ndlela kunyuswa iindleko zizonke. Ukongeza, ukusetyenziswa kwe-HPMC kunokuphucula ukusebenza kakuhle kolwakhiwo kunye nokunciphisa ixesha lokwakha, ngaloo ndlela kuncitshiswa ngakumbi iindleko zeprojekthi. Lilonke, ukusetyenziswa kwe-HPMC kuyenzeka ngokwezoqoqosho.
I-HPMC ineenzuzo ezininzi kwimveliso yesamente, kubandakanywa nokusebenza okuphuculweyo, ukugcinwa kwamanzi, ukuxhathisa ukuqhekeka, ukunamathela, ukuguquguquka, njl. Njengoko iimfuno zoshishino lwezokwakha zentsebenzo yemathiriyeli ziqhubeka zisanda, ukusetyenziswa kwe-HPMC kuya kusasazeka ngakumbi nangakumbi, ukukhuthaza uphuhliso lweemveliso zesamente kwicala lomgangatho ophezulu kunye nokukhuselwa kokusingqongileyo.
Ixesha lokuposa: Jul-22-2024