Indlela yoVavanyo loMgangatho wePolymer eDispersible Re-Dispersible

Uvavanyo lomgangatho we-re-dispersible polymer powder (RDP) lubalulekile ukuqinisekisa ukuba iyahlangabezana nemigangatho kunye neenkcukacha ezifunekayo kwizicelo ezahlukeneyo, ezifana nezixhobo zokwakha ezifana neethayile zokuncamathelisa, iimortars, kunye neemembranes zokuthintela amanzi. Nazi ezinye zeendlela eziqhelekileyo zokuvavanya umgangatho we-re-dispersible polymer powder:

1.Uhlalutyo lobungakanani beenxalenye: Ukusasazwa kobungakanani bamasuntswana kuchaphazela ngokuthe ngqo ukusebenza kwe-RDP ngokubhekiselele ekusasazekeni, ukwakheka kwefilimu, kunye neempawu zoomatshini. Iindlela zokusasazwa kwe-laser, i-sedimentation, okanye i-microscopy zingasetyenziselwa ukulinganisa ukusasazwa kobungakanani bamasuntswana e-RDP.

2.Unizi lolwapho kuyiwa khona: Uxinano olukhulu luphawu olubalulekileyo oluchaphazela ukuphathwa, ukuthuthwa, kunye nokuxuba iimpawu ze-RDP. Ngokwesiqhelo kulinganiswa ngokuzalisa umthamo owaziwayo we-RDP kwisikhongozeli kunye nokulinganisa ubunzima bayo. Uxinano olukhulu emva koko lubalwa ngokwahlula ubunzima ngobuninzi.

3.Umxholo Oqinileyo: Umxholo oqinileyo we-RDP ubhekisa kwipesenti yezinto eziqinileyo ze-polymer kumgubo. Ngokwesiqhelo umiselwa ngokomisa ubunzima obaziwayo be-RDP kubushushu obuthile uze ulinganise ubunzima obuseleyo. Umxholo oqinileyo ubalwa ngokusekelwe ekulahlekeni kobunzima ngexesha lokomisa.

4.Ubushushu boTshintsho lweGlasi (Tg): I-Tg ye-RDP sisalathisi sozinzo lwayo lobushushu kwaye inefuthe kwiimeko zokugcina kunye nokucubungula kwayo. I-Differential scanning calorimetry (DSC) okanye i-dynamic mechanical analysis (DMA) ingasetyenziselwa ukumisela i-Tg ye-RDP.

5.Ukuxinana kokusasazwa kweRDP: Ubunzima bokusasazwa kwe-RDP bubalulekile kwiimpawu zayo zokusetyenziswa, ezinje ngokusebenza kakuhle, ixesha elivulekileyo, kunye nokumelana nokuhla. Ingalinganiswa kusetyenziswa i-viscometer okanye i-rheometer phantsi kweemeko zokucheba ezilawulwayo.

6.Ukwenziwa kweFilimu kunye nokunamathela: Amandla okwakheka kwefilimu kunye namandla okunamathela e-RDP abalulekile ekusebenzeni kwayo kwizixhobo zokwakha. Iindlela ezifana novavanyo lokwakheka kwefilimu, uvavanyo lokunamathela kwamaxolo, kunye novavanyo lokuxinana zingasetyenziselwa ukuvavanya ezi mpawu.

7.Uhlalutyo loBume beeKhemikhaliIindlela ezifana ne-Fourier-transform infrared spectroscopy (FTIR) okanye i-nuclear magnetic resonance (NMR) spectroscopy zinokusetyenziswa ukuhlalutya ukwakheka kweekhemikhali ze-RDP nokuqinisekisa ukuhambelana kwayo kunye nobunyulu bayo.

8.Uvavanyo lokuxhathisa amanzi: I-RDP idla ngokusetyenziswa kwiindawo apho ukumelana namanzi kubalulekile, njengokuthintela amanzi. Ukumelana namanzi kunokuvavanywa ngokwenza iimvavanyo ezifana novavanyo lokuntywiliselwa emanzini okanye uvavanyo lokudluliselwa komphunga wamanzi kwizinto eziqulethe i-RDP.

Ezi zezinye zeendlela eziqhelekileyo zokuvavanya umgangatho ezisetyenziselwa umgubo wepolymer ophinda usasazeke. Ngokuxhomekeke kwiimfuno ezithile zesicelo kunye nemigangatho/imigaqo ekhoyo, uvavanyo olongezelelweyo lunokufuneka ukuqinisekisa umgangatho kunye nokusebenza kweemveliso zeRDP.