Whakamahia te SBS hei rauemi matua ki te tirotiro i nga kaiwhakariterite tika me o raatau tauira. Whakamahia he whakaranu noa ki te taapiri i tetahi wahanga o te masterbatch ki te reactor, whakamahana me te uru ki nga momo bitumen matrix i te 160°C, ka mahia te masterbatch ma roto i te tukanga granulation.
I te mea ko te bitumen kua whakarerekehia te polymer me whakamahi taputapu motuhake penei i nga mira colloid nui mo te tukatuka, a ko nga polymers anake e whakamahia ana ki te whakakotahi i te bitumen whakarereke, ko te nuinga he whakakotahitanga tinana ngawari, a kaore he hononga matū i waenga i te whakarereke polymer me te matrix. bitumen. He ngoikore te pumau o te punaha whakauru, a ko te hangarau whakahiato o te SBS me te whakahoahoa hototahi ki te hanga SBS bitumen masterbatch kua whakarereketia te pai ake o te rere pokey o te SBS whakakē kotahi me te whakaiti i te pāmahana o te rohe rerenga pokey o te masterbatch. , ka whakahekehia te pāmahana whakakotahi mai i te 180 ~ 190 ℃ ki te 160 ℃, a ka taea e te whakamahi i nga taputapu whakaranu tikanga te whakatutuki i te marara me te whakaranu o te polymer me te bitumen, na reira ka whakaiti i te kaha o te whakaputa me te penapena i nga utu whakaputa.
Styrene parakore + otinga parakore + butadiene parakore + antioxidant → polymerization → whakakotahitanga tauhohenga → muri-tukatuka, tākai