A kind of thermoplastic polyurethane elastomer compatibilizer and its preparation method and application
A thermoplastic polyurethane and elastomer technology, applied in the field of compatibilizers for polymer alloy materials, can solve the problems of low content of grafted polar groups, limited compatibilization effect, short branch chains, etc., to improve compatibility and increase Interfacial force, effect of improving tensile strength
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Embodiment 1
[0054] Preparation of thermoplastic polyurethane elastomer compatibilizer containing 4.0wt% of 1-dodecanoic acid glyceride diol and 2.0wt% of aromatic polycarbonate diol (PCDL)
[0055] Step 1: Preparation of aromatic polycarbonate diol (PCDL)
[0056] Add 20.86g (66mmol) hydroxyethylated bisphenol A and 12.84g (60mmol) diphenyl carbonate to the reactor, raise the temperature to 130°C under the protection of nitrogen to completely melt the raw materials, and add 0.034g (accounting for the reaction (0.1wt%) tetrabutyl titanate was reacted for 30min, then the temperature was raised to 150°C and the reaction was carried out for 6h under reduced pressure (the pressure dropped below 6KPa), and the by-product phenol was extracted from the reaction system during the reduced pressure reaction to obtain aromatic Polycarbonate dihydric alcohol crude product, then the crude product that obtains is cooled to room temperature, adds the mixed solvent dissolution of 110g ethyl acetate and me...
Embodiment 2
[0065] Preparation of Thermoplastic Polyurethane Elastomer Compatibilizer Containing 2.0wt% 1-octadecanoic Acid Glyceride Diol and 8.0wt% Aromatic Polycarbonate Diol (PCDL)
[0066] Step 1: Preparation of aromatic polycarbonate diol (PCDL)
[0067] Add 25.28g (80mmol) hydroxyethylated bisphenol A and 12.84g (60mmol) diphenyl carbonate to the reactor, raise the temperature to 120°C under the protection of nitrogen to completely melt the raw materials, add 0.19g (accounting for the reaction (0.5wt%) 4-dimethylaminopyridine was reacted for 1h, and then the temperature was raised to 180°C to start decompression (the pressure dropped below 6KPa) distillation reaction for 3h, and the by-product phenol was extracted from the reaction system during the decompression reaction to obtain aromatic Polycarbonate diol crude product, then the obtained crude product is cooled to room temperature, 160g of dichloromethane is added to dissolve, the crude product is purified by liquid separation ...
Embodiment 3
[0076] Preparation of thermoplastic polyurethane elastomer compatibilizer containing 0.5wt% of 1-hexacanoic acid glyceride diol and 12.0wt% of aromatic polycarbonate diol (PCDL)
[0077] Step 1: Preparation of aromatic polycarbonate diol (PCDL)
[0078] Add 37.92g (120mmol) hydroxyethylated bisphenol A and 12.84g (60mmol) diphenyl carbonate to the reactor, raise the temperature to 125°C under nitrogen protection to completely melt the raw materials, add 0.25g (accounting for the reaction 0.5wt% of reactant) sodium hydroxide and 0.25g (accounting for 0.5wt% of reactant) tetrabutyl titanate were reacted for 45min, then the temperature was raised to 200°C and the distillation reaction was started under reduced pressure (pressure dropped below 6KPa) for 2h, and the by-product phenol was Extract the reaction system during the decompression reaction to obtain the crude product of aromatic polycarbonate diol, then cool the obtained crude product to room temperature, add 250g of acetone...
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