Qhov zoo ntawm pwm silicone ncaj qha cuam tshuam rau kev ua haujlwm thiab kev ua haujlwm ntawm pwm. Viscosity, hardness, kua muag kuj, thiab tensile zog yog tag nrho cov txiav txim siab yam nyob rau hauv nws zoo. Yuav ua li cas txiav txim qhov zoo ntawm pwm silicone?
1. Silicone Viscosity: Lub fluidity ntawm silicone yog txiav txim los ntawm nws viscosity. Thaum lub sij hawm kuaj, shovel kua pwm silicone rau hauv lub thawv thiab cia nws ntws lawm. Qhov ceev nws ntws, qhov zoo dua qhov fluidity. Txawm li cas los xij, nws tseem ceeb heev uas yuav tsum nco ntsoov tias
viscosity thiab kua muag lub zog yog ncaj qha proportional. Tsis txhob siv cov viscosity silicone ntau dhau los ua kom cov dej ntws zoo dua, vim qhov no yuav ua rau cov kua muag tsis zoo thiab cov pwm rov ua dua. Qee cov tuam ntxhab ntxiv cov roj silicone ntau dhau los ua kom cov dej ntws ntawm pwm silicone, uas tuaj yeem ua rau lub zog tensile tsis zoo.
2. Silicone Hardness: Lub hardness ntawm silicone yog ib qho tseem ceeb kev qhia qhia txog lub rigidity ntawm silicone khoom. Thaum lub hardness ntawm pwm silicone qis dua 10 degrees, cov silicone muaj lub zog tsim kua muag tsawg thiab siab elongation, ua rau cov khoom silicone nquag deformation.
Thaum lub hardness siab tshaj 50 degrees, lub zog tsim kua muag deteriorates, thiab silicone khoom ua nkig thiab yooj yim tawg los yog puas. Feem ntau, silicone hardness ntawm 20-40 ua rau pom lub zog tsim kua muag, elongation, thiab lwm yam.
3. Tear Strength: Silicone cov khoom uas muaj lub zog tsim kua muag pom tau zoo heev rau kev puas tsuaj, muaj lub neej ntev, thiab tsis tshua muaj kev cuam tshuam rau sab nraud. Cov khoom siv silicone nrog lub zog tsim kua muag tsis zoo feem ntau ua rau cov kua muag thaum lub sij hawm tsim kua muag, thiab cov kua muag tau nthuav dav hauv kev ntxhov siab, ua rau tsis ua haujlwm.
4. Tensile Strength: Lub zog tensile ntawm cov ntaub ntawv silicone cuam tshuam rau txheej txheem molding. Cov khoom siv silicone nrog lub zog tensile tsis zoo ua rau cov khoom siv silicone tsis muaj zog thiab lub zog tsim kua muag tsis txaus, ua rau nws nyuaj rau tshem tawm cov npoo thaum molding.
