Silicone rɔba yɛ nneɛma a ɛho hia sen biara a wɔde silicone ayɛ no mu biako.
Nneɛma a wɔde yɛ silicone rɔba no taa yɛ linear polysiloxane [silicone rɔba a wɔannoa, wɔatwa no tiaa sɛ silicone raw raw], reinforcing fillers, crosslinking agents, catalysts, modified additives, etc. Wobetumi ayɛ raw nneɛma no nyinaa ho adwuma akɔ rɔba a wɔde afrafra mu denam afrafra (anaasɛ afrafra) so. Wɔ tebea horow bi mu no, sɛ wɔde rɔba a wɔadi afra no abɔ mu-abɔ mu na vulcanized a, ebetumi asakra afi nsu a ɛyɛ nwini tebea mu akɔ tebea a ɛyɛ den kɛse - vulcanizate.
Nnuru a ɛwɔ rɔba a wɔannoa mu no te sɛ nea ɛwɔ silicone ngo mu no, na nea ɛwɔ mu no nyinaa te sɛ nea edidi so yi:
Wɔ general formula no mu no,r 'gyina hɔ ma alkyl anaa hydroxyl kuw, na R taa yɛ methyl kuw, nanso akuw afoforo te sɛ ethyl, vinyl, phenyl, trifluoropropyl, ne nea ɛkeka ho nso betumi aba na ama su ahorow bi atu mpɔn na ayɛ kɛse. Sɛ nhwɛso no, sɛ wode phenyl akuw no si methyl akuw no fã bi ananmu a, ebetumi ama silicone rɔba a ɛyɛ mmerɛw ne mframa a ɛbɔ no ayɛ kɛse wɔ ɔhyew a ɛba fam mu. Sɛ wode vinyl kakraa bi ba a, ebetumi ama vulcanization adwumayɛ ne nhyɛso a ɛwɔ silicone rɔba mu no atu mpɔn.
trifluoropropyl akuw a ɛwɔ hɔ no betumi ama silicone rɔba a ɛyɛ papa a ngo no tumi gyina ano no ma. Silicone rɔba a cyano akuw wom, te sɛ fluorosilicone rɔba, tumi ko tia non{1}}polar solvents. Bere a wɔde phenylene akuw dodow bi ahyɛ siloxane rɔba a ɛyɛ siloxane no mu akyi no, wobetumi ama mfiri ahoɔden no akɔ soro afi 110MPa akodu 170-180mpa, na ɔhyew a ɛko tia no nso atu mpɔn.
Enti, ɛgyina organic akuo ahodoɔ a ɛbata silicon atɔm no ho so no, wɔbɛtumi akyekyɛ silicone rɔba mu ayɛ no ahodoɔ pii te sɛ dimethyl silicone rɔba, methyl vinyl silicone rɔba, methyl phenyl silicone rɔba, fluorosilicone rɔba, nitrile silicone rɔba ne phenylene silicone silicone.