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›› 2012, Vol. 46 ›› Issue (6): 1-6.

• 研究报告 •     Next Articles

The Preparation and Applications of the Environmentally-friendly Plasticizer DOTP

CHANG Xia1, NIE Xiao-an1, CHEN Jie1, GAO Yi-wei1, LIU Qian2, XU Bing1   

  1. 1. Institute of Chemical Industry of Forest Products, CAF; National Engineering Lab.for Biomass Chemical Utilization; Key and Open Lab.of forest Chemical Engineering, SFA, Key Lab. of Biomass Energy and Material, Jiangsu Province, Nanjing 210042, China;2. College of Chemical Engineering, Nanjing Foresrry University, Nanjing 210037, China
  • Received:2012-07-17 Revised:1900-01-01 Online:2012-11-30 Published:2012-11-30

Abstract: We studied the synthesis of plasticizer DOTP using mixed PTA and PTA waste as raw materials along with compound catalyst. After comparing the effects of different reaction conditions, the optimum synthetic conditions were obtained as follows: the molar ratio 2.4:1, the amount of catalyst 0.3%, reaction time 6 h, reaction temperature 220℃; the decolourization dosage 5%, temperature 80℃, time 1 h. Under this condition, the yielded product had the volume resistivity of ≥ 9.0×1011Ω·cm. GC-MS analysis showed that phthalate dioctyl content was up to 95.94%. Compared with DOP, the product has excellent performance, higher heat resistance and more economic benefits.

Key words: PTA recycling materials, esterification, plasticizer, DOTP

CLC Number: