Synthesis Optimization of DBTDL Cooking Catalyst and Kinetic Study of Polyurethane Preparation

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yosefi Javad; FAKHRI ALI; NAJAFI MOSTAFA; TAGHIZADEH MOHAMMAD JAVAD

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Journal: Nashrieh Shimi va Mohandesi Shimi Iran Year:2019 | Volume:38 | Issue:3 (93) Page(s): 127-136

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Title

Synthesis Optimization of DBTDL Cooking Catalyst and Kinetic Study of Polyurethane Preparation

Author(s)

yosefi Javad | FAKHRI ALI | NAJAFI MOSTAFA | TAGHIZADEH MOHAMMAD JAVAD | Issue Writer Certificate

Keywords

PolyurethaneQ1

Dibutyltin dilaurateQ1

Dibutyltin-dichlorideQ1

KineticsQ2

OptimizationQ2

Abstract

Tin catalysts are widely used in the preparation of Polyurethane elastomers. Dibutyltin dilaurate (DBTDL) as a tin catalyst has been used for more than 35 years in the Polyurethane production industry. In this research, the synthesis of DBTDL, using dibutyltin dichloride and dibutyltin oxide was carried out at different temperatures and solvents. In all methods, lauric acid or laurate salt was used as the essential reagent to prepare laurate ligand. The results showed that among these methods, the best efficiency (95%) was obtained using two conditions of tetrahydrofuran solvent at ambient temperature (for dibutyltin dichloride) and toluene solvent at reflux temperature (for dibutyltin oxide). The chemical structure of the compound was investigated by IR, 1H-NMR, 13C-NMR, GC-MS. Finally, the infrared spectroscopy method was selected for simplicity and better accuracy to investigate the Kinetics of the HTPB and IPDI reactions using a commercial and synthetic DBTDL. Using the obtained data, the reaction progress rate, reaction speed constants, and activation energy of the reaction were calculated. Activation energies for commercial DBTDL catalyst and synthetic were obtained 65. 09 and 54. 09 KJ/mol, respectively.

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APA: Copy

yosefi, Javad, FAKHRI, ALI, NAJAFI, MOSTAFA, & TAGHIZADEH, MOHAMMAD JAVAD. (2019). Synthesis Optimization of DBTDL Cooking Catalyst and Kinetic Study of Polyurethane Preparation. NASHRIEH SHIMI VA MOHANDESI SHIMI IRAN (PERSIAN), 38(3 (93) ), 127-136. SID. https://sid.ir/paper/404920/en

Vancouver: Copy

yosefi Javad, FAKHRI ALI, NAJAFI MOSTAFA, TAGHIZADEH MOHAMMAD JAVAD. Synthesis Optimization of DBTDL Cooking Catalyst and Kinetic Study of Polyurethane Preparation. NASHRIEH SHIMI VA MOHANDESI SHIMI IRAN (PERSIAN)[Internet]. 2019;38(3 (93) ):127-136. Available from: https://sid.ir/paper/404920/en

IEEE: Copy

Javad yosefi, ALI FAKHRI, MOSTAFA NAJAFI, and MOHAMMAD JAVAD TAGHIZADEH, “Synthesis Optimization of DBTDL Cooking Catalyst and Kinetic Study of Polyurethane Preparation,” NASHRIEH SHIMI VA MOHANDESI SHIMI IRAN (PERSIAN), vol. 38, no. 3 (93) , pp. 127–136, 2019, [Online]. Available: https://sid.ir/paper/404920/en

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