氢化松香热稳定性的研究

Research on Thermal Stability of Hydrogenated Rosin

研究氢化松香在 2 0 0℃、2h条件下的耐热性。氢化松香的铁含量 >2 1 5mg kg、不皂化物质量分数 >7 1% ,其耐热性差 ;WG级以下的松香虽然可制备出氢化松香 ,但其耐热性差 ;用歧化 -精制

Thermal stability of hydrogenated rosin was studied under the conditions of heating at 200 ℃ for 2 h.Thermal stability of hydrogenated rosin was poor if iron content>21.5 mg/kg and unsaponifiable matter content>7.1%.Although hydrogenated rosin could be made from rosin below grade WG,its thermal stability was poor.Hydrogenated rosin of high thermal stability was made by method of disproportionrefinementhydrogenation.