IHydroxypropyl methylcellulose (HPMC) yipolymer enemisebenzi emininzi esetyenziswa kakhulu kumashishini ahlukeneyo kuquka ukwakhiwa. Ekuqulunqweni kwe-putty, i-HPMC isebenza ngemisebenzi eyahlukeneyo, kubandakanywa nokuphucula ukusebenza, ukuphucula ukunamathela, ukulawula ukugcinwa kwamanzi, kunye nokuphucula iimpawu zoomatshini.
Imixube yeputty idlala indima ebalulekileyo kulwakhiwo njengento eguquguqukayo evala izikhewu, igudise umphezulu, kwaye ibonelele ngesiseko esilinganayo seepeyinti kunye nezaleko. IHydroxypropyl methylcellulose (HPMC) yenye yezithako eziphambili ezisetyenziswa kwi-putty formulations ngenxa yeempawu zayo ezizodwa kunye nokuguquguquka.
1.HPMC iipropati zeekhemikhali
I-Hydroxypropylmethylcellulose yi-semi-synthetic polymer ephuma kwi-cellulose. Ibonakaliswa ngesakhiwo sayo esikhethekileyo, esibandakanya amatyathanga e-cellulose adityaniswe ne-hydroxypropyl kunye namaqela e-methyl. Iqondo lokutshintshwa kwala maqela limisela iimpawu ze-HPMC, kubandakanywa ukunyibilika, i-viscosity kunye nokukwazi ukwenza ifilimu. Ngokuqhelekileyo, i-HPMC esetyenziswa kwi-putty formulations ifumaneka phakathi ukuya kumabakala aphezulu e-viscosity abonelela ngeepropati ezifunekayo ze-rheological.
2. Indlela yokwenza i-putty formula
Ukuphucula ukusebenza
I-HPMC isebenza njenge-thickener kunye ne-rheology modifier yokuphucula ukusebenza kwe-putty formulations. Iimolekyuli ze-polymer zidibanisa kwaye zenze i-network-dimensional network, enika i-viscosity kwaye inqande amaqhekeza aqinile ukuba ahlale. Oku kuqinisekisa ukuhanjiswa kunye nokusetyenziswa ngokulula kweputty, ukuyivumela ukuba isasazeke kwaye imile kakuhle ngaphandle kokuntywila okanye ukuvuza.
Phucula ukubambelela
I-Adhesion yipropati ephambili kwi-putty formulations njengoko imisela amandla okubambisana phakathi kwe-putty kunye ne-substrate. I-HPMC iphucula ukubambelela ngokwenza ifilimu ebhityileyo kumphezulu we-substrate, ikhuthaza ukudityaniswa koomatshini kunye nokwandisa indawo yokunxibelelana phakathi kwe-putty kunye ne-substrate. Ukongeza, indalo ye-hydrophilic ye-HPMC iyayivumela ukuba inxibelelane ne-putty matrices kunye ne-substrates, ikhuthaza ukunamathela nakwimigangatho ecela umngeni.
ulawulo lokugcinwa kwamanzi
Ukugcinwa kwamanzi kubalulekile ekunyangeni okufanelekileyo kunye nokomisa kwe-putty formulations. I-HPMC isebenza njenge-arhente yokugcina amanzi ngokufunxa nokugcina ukufuma ngaphakathi kwesakhiwo sayo seemolekyuli. Oku kuthintela ukuvela komphunga okukhawulezayo kwamanzi kwi-putty matrix, ukuqinisekisa ukusebenza ixesha elide kunye nokuphumeza ukufakwa kwamanzi okwaneleyo kwezithako zesamente. Ukugcinwa kwamanzi alawulwayo kukwanciphisa ukucutheka kunye nokuqhekeka ngexesha lokumisa, ukuphucula ukuqina kunye nokugqitywa komphezulu.
Ukulungiswa kokusebenza koomatshini
I-HPMC iphucula iipropathi ze-mechanical of putty formulations ngokuqinisa i-matrix kunye nokuphucula ukuhambelana. I-polymer yenza iibhondi ze-hydrogen kunye nezinye izithako kwi-putty, ukwandisa amandla ayo, ukuguquguquka kunye nokuchasana kwempembelelo. Ukongeza, isakhono sokwenza ifilimu ye-HPMC yenza umqobo okhusela i-putty kuxinzelelo lwangaphandle kunye nezinto ezisingqongileyo, okonyusa ngakumbi ukuqina kunye nokuphila ixesha elide.
3.Impembelelo ye-HPMC ekusebenzeni kwe-putty
Iimpawu zeRheological
I-HPMC ichaphazela kakhulu ukuziphatha kwe-rheological ye-putty formulations, echaphazela i-viscosity, i-thixotropy kunye neempawu zokuhamba. Ugxininiso lwepolymer, ubunzima bemolekyuli kunye neqondo lokutshintsha limisela iqondo lokuguqulwa kwe-viscosity, evumela abaqulunqi ukuba balungelelanise iimpawu zerheological kwiimfuno ezithile zesicelo. Uhlengahlengiso olufanelekileyo lwedosi ye-HPMC iqinisekisa ukwakhiwa kunye nokusebenza kwesicelo.
ukuncamathela
Ubukho be-HPMC buphucula amandla ebhondi ye-putty ukwakheka, okukhokelela ekuphuculeni ukunamathela kwiintlobo ezahlukeneyo ze-substrates ezibandakanya ikhonkrithi, iinkuni, isinyithi kunye ne-masonry. Abaqulunqi banokuhlengahlengisa ibakala le-HPMC kunye nogxininiso ukuze bafezekise iipropati ezinqwenelekayo zokudibanisa, ziqinisekisa ukuhambelana nezinto ezahlukeneyo zomhlaba kunye neemeko zokusingqongileyo. Ukulungiswa okufanelekileyo komphezulu kunye nobuchule bokusetyenziswa kunokuncedisa imiphumo yokukhuthaza ibhondi ye-HPMC ukunyusa amandla ebhondi kunye nokuqina kwexesha elide.
abavukeli bamanzi
I-HPMC inceda ukuphucula ukuxhathisa kwamanzi okuxutywa kwe-putty ngokulawula ukugcinwa kwamanzi kunye nokunciphisa ukugqithiswa kwamanzi. I-polymer yenza ifilimu ye-hydrophilic evimbela ukungena kwamanzi kwi-putty matrix, ukuthintela ukuvuvukala, ukuthotywa kunye nokulahlekelwa kwempahla yomatshini. Ukukhethwa ngokufanelekileyo kwamabanga e-HPMC kunye nezongezo zokwenziwa kunokwandisa ukuxhathisa kwamanzi, okwenza i-putty ilungele ukusetyenziswa kwangaphakathi nangaphandle kubonakaliswe kukufuma.
4. Amandla omatshini kunye nokuqina
Ukudibanisa i-HPMC kwi-putty formulations kwandisa amandla oomatshini, ukuqina, kunye nokumelana nokuqhekeka, ukushwabana, kunye nemozulu. I-polymer isebenza njenge-ejenti yokuqinisa, iqinisa i-putty matrix kunye nokuphucula ukuhambelana. Ukongeza, ukukwazi kwe-HPMC ukulawula ukugcinwa kwamanzi kunye nokukhuthaza ukunyanga okufanelekileyo kunceda ukomeleza amandla ebhondi kunye nokusebenza kwexesha elide. Abaqulunqi banokwandisa idosi ye-HPMC kunye neeparamitha zokuqulunqa ukufezekisa ibhalansi efanelekileyo yeepropathi zoomatshini kunye nokuqina.
5. Iingqwalasela ezisebenzayo malunga noqulunqo
Ukukhethwa kwamabanga eHPMC
Xa ukhetha ibakala HPMC efanelekileyo kuqulunqo putty, formulators kufuneka baqwalasele izinto ezahlukeneyo, kuquka viscosity, iqondo lokuthatha indawo, kunye nokuhambelana nezinye izithako. Amanqanaba aphezulu e-viscosity afanelekile kwiiputty ezityebileyo kunye nezicelo ezithe nkqo, ngelixa amabakala asezantsi e-viscosity afanelekile ukuthungwa okugudileyo kunye nokusasazeka lula. Abaqulunqi kufuneka kwakhona baqinisekise ukuhambelana phakathi kwe-HPMC kunye nezinye izongezo ezifana nezihluzi, ii-pigments, kunye nezithinteli ukunqanda imiba yokuhambelana kunye nokuthotywa kokusebenza.
ukwenziwa kwedosi
Elona nani lifanelekileyo le-HPMC lixhomekeke kwizinto ezifana neepropati ezifunwayo, indlela yesicelo, uhlobo lwe-substrate kunye neemeko zokusingqongileyo. Abaqulunqi kufuneka baqhube uvavanyo olucokisekileyo ukumisela elona thamo lisezantsi lisebenzayo elifezekisa umsebenzi onqwenelekayo ngaphandle kokubeka esichengeni ukusebenza kweendleko. Ukusetyenziswa ngokugqithisileyo kwe-HPMC kunokubangela i-viscosity egqithisileyo, ubunzima besicelo, kunye namaxesha okumisa ixesha elide, ngelixa ukusetyenziswa kakubi kunokubangela ukulawulwa kwe-rheology ngokwaneleyo kunye nokunciphisa ukusebenza.
6. Ukuhambelana nezinye izongezo
I-HPMC inxibelelana nezongezelelo ezahlukeneyo ezidla ngokusetyenziswa kwimixube ye-putty, efana ne-thickeners, ii-dispersants kunye ne-preservatives. Abaqulunqi kufuneka bavavanye ngononophelo ukuhambelana kunye ne-synergy ye-HPMC kunye nezinye izithako zokuqinisekisa ukusebenza kakuhle kunye nozinzo. Uvavanyo lokuhambelana, kubandakanywa uhlalutyo lwe-rheological kunye novavanyo lwexesha elide lokugcina, lunceda ukuchonga nayiphi na intsebenziswano enokubakho okanye imiba yokuqulunqa kwangaphambili kwinkqubo yophuhliso ukwenzela ukuba uhlengahlengiso kunye nokulungiswa kunokwenziwa.
7. Itekhnoloji yesicelo
Ubuchule bokusetyenziswa obufanelekileyo bubaluleke kakhulu ekwandiseni ukusebenza kwe-putty formulations equlethe i-HPMC. Abaqulunqi kufuneka banike imiyalelo ecacileyo kunye nezikhokelo zokulungisa umphezulu, ukuxuba, ukusetyenziswa kunye nokunyanga ukuqinisekisa iziphumo ezizezona zilungileyo. Ukufezekisa ukubambelela okufunekayo, ukugudiswa kunye nokuqina, ubuchule obufana ne-priming, i-substrate conditioning kunye ne-multi-layer coatings ingafuneka. Uqeqesho kunye nemfundo yabasebenzi bokwakha kuqinisekisa ngakumbi ukuguquguquka, iziphumo ezikumgangatho ophezulu, ukunciphisa ukusebenza ngokutsha kunye nemiba yewaranti.
Ixesha lokuposa: Feb-22-2024