Caoutchouc cru ya silicone ezali matériel ya renforcement ya caoutchouc composé. Ba propriétés ya caoutchouc composé oyo esalemi na ba types différents ya caoutchouc brut ekeseni .
Mingi mingi. Masɛngami mpo na caoutchouc brut ekeseni kati na mitindo ndenge na ndenge ya caoutchouc composé.Ba propriétés ya base ya caoutchouc brut ezuami na ba indicateurs misato : masse molaire, teneur ya vinyle na matière volatile.
Na boumeli ya mosala yango, mbala mingi basalelaka caoutchouc brut oyo ezali na ba poids moléculaires ndenge na ndenge mpe na vinyle oyo ezali na kati ya biloko oyo ezali na kati ya proportion moko boye. Soki biloko yango ezali makasi mingi, vinyle oyo ezali na caoutchouc brut ezali mingi. Matériel volatile esengeli mingi mingi kozala moyenne (1% na 2%). Soki matière volatile ezali likolo mingi, composé ya caoutchouc ekokoma kokangama mpe performance na yango ekokita, nzoka nde soki matière volatile ezali moke mingi, ekozala mpasi mpo na composé ya caoutchouc "poudre d’absorbe".
Generally speaking, the higher the molar mass, the better the physical and mechanical properties of the vulcanized rubber, but its processability and fluidity will decline, and the speed of "powder intake" (filler mixing into raw rubber) will slow down. When processing molded compound rubber, raw rubber with a high molar mass (>600.000) eponamaka mingi. Kasi, ntango ozali kosala biloko oyo esalemi na biloko mosusu, mpo na kobongisa ndenge oyo biloko ezali koleka, esengeli mwa moke na nse. Bonene ya teneur ya vinyle ezali na impact ya monene na performance complète ya caoutchouc mixte. Performance mpe adaptabilité ya caoutchouc composé na teneur ya vinyle ya 0,1% na 0,2% ezali malamu koleka.