Rosinka cad ee biyaha iyo rosinka hydrogenated labaduba waa rosin rosin dabiici ah oo wax laga beddelay.
Rosin maaha hal iskudhis, laakiin waa isku dhafka kiimikaad:
Rosin waxaa ku jira qiyaastii 80% rosin anhydride iyo rosin acid, qiyaastii 5 ilaa 6% of resin hydrocarbon, qiyaastii 0.5% saliid kacsan iyo walxaha qadhaadh raadraaca.
Rosin hydrogenated:
Maadaama rosinku ay fududahay in la kiraysiiyo, iyo hydrocarbon resin ee qaab-dhismeedkeeda molecular ka kooban yahay curaarta labajibbaaran, waxay leedahay falcelin sare, xasillooni darro iyo oksaydheyn fudud. Si loo hagaajiyo caabbinta oksaydhka, rosinka hydrogenated waxaa lagu diyaarin karaa iyada oo la falcelinayo rosin leh hydrogen hoos yimaada xaaladaha cadaadiska.
Rosin cad oo biyo ah:
Rosin biyo-cad waa rosin polyol ah oo leh midab aad u khafiif ah. Waxaa laga sameeyaa rosin la safeeyey sida alaabta ceeriin aasaasiga ah iyada oo loo marayo hydrogenation, esterification iyo xasilinta. Waxay leedahay faa'iidooyinka caddaanka biyaha, caabbinta gabowga wanaagsan iyo ku habboonaanta alaabta polymer, kaas oo buuxin kara baahiyaha gaarka ah ee warshadaha dhejiska.
Waxaa la arki karaa in diyaarinta biyaha cad ee rosin u baahan tahay in ay maraan tallaabada of hydrogenation rosin, laakiin kuma koobna tallaabada hydrogenation, waa wax soo saarka sifeeyey aad u fiican.
