Low-chlorine ECH-residue-free TGIC curing agent and preparation method thereof
A technology of TGIC and curing agent, applied in the direction of organic chemistry, can solve the problems of low utilization rate of hydrogen peroxide, decrease of product yield, long reaction time, etc., achieve high industrial promotion value, speed up reaction speed, and reduce residence time Effect
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Embodiment 1
[0036] The raw materials for preparing the low-chlorine and ECH-free TGIC curing agent described in this example include: 100 mol of isocyanuric acid, 800 mol of propylene chloride, 250 mol of sodium carbonate, 100 mol of epoxidation solvent, 500 mol of hydrogen peroxide, and 0.019 kg of a metal catalyst; among them, The hydrogen peroxide is prepared as an aqueous hydrogen peroxide solution with a mass concentration of 25 wt%, the epoxidation solvent is ethanol, and the metal catalyst is a mixture of molybdenum trioxide and manganese acetate at a mass ratio of 1:1.
[0037] The preparation method of the low-chlorine no-ECH residue TGIC curing agent described in the present embodiment comprises the following steps:
[0038] (1) Add the isocyanuric acid, allyl chloride and sodium carbonate in the formula amount into the stainless steel autoclave, seal the autoclave, start stirring, after mixing evenly, heat up to 100°C for full reaction;
[0039] (2) Sampling during the process ...
Embodiment 2
[0043] The raw materials for preparing the low-chlorine and ECH-free TGIC curing agent described in this example include: 100 mol of isocyanuric acid, 950 mol of propylene chloride, 200 mol of sodium carbonate, 120 mol of epoxidation solvent, 460 mol of hydrogen peroxide, and 0.011 kg of a metal catalyst; among them, The hydrogen peroxide is prepared as an aqueous hydrogen peroxide solution with a mass concentration of 27.5 wt%, the epoxidation solvent is acetonitrile, and the metal catalyst is a mixture of molybdenum trioxide and manganese acetate at a mass ratio of 1:1.5.
[0044] The preparation method of the low-chlorine no-ECH residue TGIC curing agent described in this embodiment is the same as in Example 1
Embodiment 3
[0046] The raw materials for preparing the low-chlorine and ECH-free TGIC curing agent described in this example include: 100 mol of isocyanuric acid, 1200 mol of propylene chloride, 220 mol of sodium carbonate, 150 mol of epoxidation solvent, 410 mol of hydrogen peroxide, and 0.015 kg of a metal catalyst; among them, The hydrogen peroxide is prepared as an aqueous hydrogen peroxide solution with a mass concentration of 25 wt%, the epoxidation solvent is ethanol, and the metal catalyst is a mixture of molybdenum trioxide and manganese acetate at a mass ratio of 1:2.
[0047] The preparation method of the low-chlorine and ECH-free TGIC curing agent described in this example is the same as that in Example 1.
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Abstract
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