viscosity
Kev piav qhia ntawm cov ntsiab lus tshawb fawb thiab thev naus laus zis: Cov yam ntxwv ntawm cov dej ntws tawm ntawm cov kua dej, pseudo-kua lossis cov khoom siv pseudo-solid, uas yog, kev sib txhuam sab hauv lossis sab hauv ntws tsis kam ntawm cov molecules thaum nws ntws los ntawm kev ua ntawm sab nraud quab yuam. Raws li ib txwm muaj, viscosity yog ncaj qha proportional rau hardness.
Hardness
Lub peev xwm ntawm cov khoom siv hauv zos tiv thaiv cov khoom tawv uas nias rau hauv nws qhov chaw hu ua hardness. Silicone roj hmab muaj qhov nyuaj ntawm ntug dej hiav txwv ntawm 10 txog 80, uas ua rau cov neeg tsim qauv muaj kev ywj pheej los xaiv qhov yuav tsum tau ua kom tawv tawv kom ua tiav cov haujlwm tshwj xeeb. Ntau qhov nruab nrab hardness qhov tseem ceeb tuaj yeem ua tiav los ntawm kev sib xyaw polymer substrates, fillers thiab additives nyob rau hauv sib txawv proportions. Ib yam li ntawd, lub sij hawm thiab qhov kub thiab txias ntawm cov cua sov thiab kev kho kuj tuaj yeem hloov qhov hardness yam tsis muaj kev puas tsuaj rau lwm cov yam ntxwv ntawm lub cev.
Tensile zog
Tensile lub zog yog hais txog lub zog uas yuav tsum tau muaj nyob rau hauv txhua chav tsev kom ua rau ib daim ntawm cov khoom siv roj hmab los tsim kua muag. Lub zog tensile ntawm thermally vulcanized khoom silicone roj hmab yog nyob nruab nrab ntawm 4.0-12.5MPa. Lub zog tensile ntawm fluorosilicone roj hmab yog nyob nruab nrab ntawm 8.7-12.1MPa. Lub zog tensile ntawm kua silicone roj hmab yog nyob rau hauv thaj tsam ntawm 3.6-11.0MPa.
kua muag zog
Qhov kev tawm tsam uas cuam tshuam qhov loj ntawm qhov txiav lossis qhov qhab nia thaum lub zog siv rau cov qauv txiav. Txawm hais tias nws tau muab tso rau hauv kev ntxhov siab heev tom qab txiav, lub thermally vulcanized khoom silicone roj hmab tsis tuaj yeem raug torn. Lub zog tsim kua muag ntawm kub-vulcanized khoom silicone roj hmab yog nruab nrab ntawm 9-55 kN / m. Lub zog tsim kua muag ntawm fluorosilicone roj hmab yog nyob nruab nrab ntawm 17.5-46.4 kN/m. Lub zog tsim kua muag ntawm cov kua roj hmab silicone yog li ntawm 11.5-52 kN / m.
Elongation
Feem ntau yog hais txog qhov "Ultimate Break Elongation" lossis qhov feem pua nce ntxiv txog qhov ntev ntawm qhov qub thaum tus qauv tawg. Thermally vulcanized khoom silicone roj hmab feem ntau muaj elongation nyob rau hauv thaj tsam ntawm 90 mus rau 1120 feem pua. Qhov dav dav elongation ntawm fluorosilicone roj hmab yog nyob nruab nrab ntawm 159 thiab 699 feem pua. Qhov dav dav elongation ntawm cov kua silicone roj hmab yog nruab nrab ntawm 220 thiab 900 feem pua. Cov txheej txheem sib txawv thiab kev xaiv ntawm hardener tuaj yeem hloov pauv nws qhov elongation. Lub elongation ntawm silicone roj hmab muaj ntau yam ua rau kub.
Lub sijhawm ua haujlwm
Lub sijhawm ua haujlwm yog xam los ntawm lub sijhawm cov colloid ntxiv rau tus neeg sawv cev vulcanizing. Qhov tseeb tsis muaj kev txwv tag nrho ntawm lub sijhawm ua haujlwm no thiab lub sijhawm vulcanization tom ntej. Lub colloid tau dhau los ua vulcanization los ntawm lub sijhawm tus neeg sawv cev vulcanizing ntxiv. Lub sijhawm ua haujlwm no txhais tau tias 30-feeb vulcanization cov tshuaj tiv thaiv ntawm cov khoom tsis cuam tshuam rau qhov zoo ntawm cov khoom tiav. Yog li ntawd, ntau lub sij hawm txuag nyob rau hauv cov khoom lag luam txheej txheem, qhov ntau tau zoo rau cov khoom tiav.
Lub sijhawm kho
Qee qhov chaw yuav hais tias nws yog lub sijhawm kho. Hauv lwm lo lus, vulcanization cov tshuaj tiv thaiv ntawm silica gel yog qhov pib dhau tom qab lub sijhawm ntev. Qhov no pib xaus, uas txhais tau hais tias cov khoom twb muaj lawm, tab sis qhov tseeb tseem muaj ib feem me me ntawm kev kho cov tshuaj tiv thaiv uas tseem tsis tau tas. Yog li ntawd, cov khoom ua los ntawm silicone roj hmab, xws li silicone pwm, feem ntau siv sij hawm ib lub sij hawm ua ntej muab tso rau hauv kev siv.
