1. Irabha yemvelo
Irabha yemvelo kulula ukuthola ipulasitiki. I-viscosity eqhubekayo kanye ne-viscosity ephansi yerabha yesilisa ine-viscosity yokuqala ephansi futhi ngokuvamile ayidingi ukwenziwa ipulasitiki. Uma i-Mooney viscosity yezinye izinhlobo zokunamathela ezijwayelekile idlula i-60, zisadinga ukubunjwa. Uma usebenzisa i-mixer yangaphakathi ekubumbeni, isikhathi singaba yimizuzu emi-3-5 lapho izinga lokushisa lifinyelela ngaphezu kuka-120 ℃. Lapho ungeza ama-plasticizers noma ama-plasticizers, kunganciphisa kakhulu isikhathi sokwenza ipulasitiki futhi kuthuthukise umphumela we-plasticizing.
2. I-styrene-butadiene
Ngokuvamile, i-Mooney viscosity ye-Styrene-butadiene iphakathi kuka-35-60. Ngakho-ke, i-Styrene-butadiene nayo ayidingi ukwenziwa kwepulasitiki. Kodwa eqinisweni, ngemva kwe-plasticizing, i-dispersibility ye-ejenti ehlanganisiwe ingathuthukiswa, esiza ukuthuthukisa ikhwalithi yomkhiqizo. Ikakhulukazi emikhiqizweni yenjoloba yesipontshi, i-Styrene-butadiene kulula ukwenza igwebu ngemva kokufakwa kwepulasitiki, futhi ubukhulu bebhamuza bufana.
3. I-Polybutadiene
I-Polybutadiene inempahla yokugeleza okubandayo futhi akulula ukwenza ngcono umphumela we-plasticizing. Njengamanje, i-Mooney viscosity ye-Polybutadiene evame ukusetshenziswa ilawulwa ebangeni elifanele ngesikhathi se-polymerization, ngakho-ke ingaxutshwa ngokuqondile ngaphandle kokwenza ipulasitiki.
4. I-Neoprene
I-Neoprene ngokuvamile ayidingi ukwenziwa ipulasitiki, kodwa ngenxa yokuqina kwayo okuphezulu, iyasiza ekusebenzeni. Izinga lokushisa elincanyana lokudlula livamise ukuba ngu-30 ℃ -40 ℃, okulula ukunamathela kumqulu uma liphezulu kakhulu.
5. Irabha ye-ethylene propylene
Ngenxa yesakhiwo esigcwele seketango eliyinhloko lerabha ye-Ethylene propylene, kunzima ukubangela ukuqhekeka kwamangqamuzana ngokufaka ipulasitiki. Ngakho-ke, kuhle ukuyihlanganisa ukuze ibe ne-Mooney viscosity efanelekile ngaphandle kwesidingo sokubunjwa.
6. Irabha ye-butyl
Irabha ye-butyl inesakhiwo samakhemikhali esizinzile nesithambile, isisindo samangqamuzana amancane kanye noketshezi olukhulu, ngakho-ke umphumela we-plasticizing wemishini awumuhle. Irabha ye-butyl ene-Mooney viscosity ephansi ingaxutshwa ngokuqondile ngaphandle kokwenza ipulasitiki.
7. Irabha ye-Nitrile
Irabha ye-Nitrile ine-plasticity encane, ukuqina okuphezulu kanye nesizukulwane esikhulu sokushisa ngesikhathi sokwenza ipulasitiki. Ngakho-ke, izinga lokushisa eliphansi, umthamo ophansi kanye ne-plasticating ehlukene ngokuvamile isetshenziswa esigayweni esivulekile ukuze kuzuzwe imiphumela emihle. Irabha ye-nitrile akufanele ifakwe ipulasitiki ku-mixer yangaphakathi. Njengoba irabha ye-Nitrile ethambile inepulasitiki ethile, ingaxutshwa ngokuqondile ngaphandle kokucwengwa kwepulasitiki.
Isikhathi sokuthumela: Aug-03-2023
