A kind of improved polyester resin and its preparation method and preparation device
A technology for preparing equipment and polyester resin, which is applied in the field of improved polyester resin, which can solve the problems of poor chemical medium resistance and water resistance, large shrinkage rate, and low adhesive toughness, etc., so as to prevent excessive by-products and improve synthesis efficiency Effect
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Embodiment 1
[0056] A kind of preparation method of improved polyester resin, comprises the steps:
[0057] S1. Weigh component A: add 3.3g of ethylene glycol, 3.8g of 1,4-butanediol, 1.6g of adipic acid, 0.8g of tetrahydrophthalic anhydride, and 0.9g of phthalic anhydride into the preparation device, and turn on the stirring The device mixes the raw materials evenly, and a condensing return pipe is installed in the preparation device;
[0058] S2. Weigh component B: modified montmorillonite powder 1.5g, methyl ethyl ketone peroxide 0.1g, hydroquinone 0.1g, methyl methacrylate 0.4g, cobalt naphthenate 0.3g, KH-550 type 0.2 g is added to the medicine storage box;
[0059] Wherein, the modification of montmorillonite comprises the following steps:
[0060] S2-1. Disperse the montmorillonite sample in distilled water, add 1mol / L Na 2 CO 3 The solution was shaken in a water bath at 50°C for 1 hour, poured into a sedimentation separator for 24 hours, and the supernatant was taken;
[0061]...
Embodiment 2
[0066] S1. Weigh component A: 3.7g of ethylene glycol, 4.4g of 1,4-butanediol, 2.3g of adipic acid, 1.3g of tetrahydrophthalic anhydride, and 1.1g of phthalic anhydride into the preparation device, and turn on the stirring The device mixes the raw materials evenly, and a condensing return pipe is installed in the preparation device;
[0067] S2. Weigh component B: 2.4g modified montmorillonite powder, 0.3g methyl ethyl ketone peroxide, 0.3g hydroquinone, 0.4-0.6g methyl methacrylate, 0.3-0.5g cobalt naphthenate, KH Add 0.2-0.6g of -550 type into the medicine storage box;
[0068] Wherein, the modification of montmorillonite comprises the following steps:
[0069] S2-1. Disperse the montmorillonite sample in distilled water, add 1.5mol / L Na 2 CO 3 The solution was shaken in a water bath at 50°C for 2 hours, poured into a sedimentation separator for 24 hours, and the supernatant was taken;
[0070] S2-2. Add 1.5mol / L NaCl solution to the supernatant to flocculate the precipi...
Embodiment 3
[0075] S1. Weigh component A: add 3.5g ethylene glycol, 4.1g 1,4-butanediol, 1.8g adipic acid, 0.9g tetrahydrophthalic anhydride, and 1g phthalic anhydride to the preparation device, and turn on the stirring device Mix the raw materials evenly, and install a condensing return pipe in the preparation device;
[0076] S2. Weigh component B: modified montmorillonite powder 1.9g, methyl ethyl ketone peroxide 0.2g, hydroquinone 0.2g, methyl methacrylate 0.5g, cobalt naphthenate 0.4g, KH-550 type 0.4 g is added to the medicine storage box;
[0077] Wherein, the modification of montmorillonite comprises the following steps:
[0078] S2-1. Disperse the montmorillonite sample in distilled water, add 1.3mol / L Na 2 CO 3 The solution was shaken in a water bath at 50°C for 1.5 hours, poured into a sedimentation separator for 24 hours, and the supernatant was taken;
[0079] S2-2. Add 1.2mol / L NaCl solution to the supernatant to flocculate the precipitate, wash the precipitate until the...
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