Preparation method of heat-resisting and corrosion-resisting engineering plastic
A kind of engineering plastics and corrosion-resistant technology, applied in the field of engineering plastics, can solve the problems of low impact resistance and damage resistance, high manufacturing cost, poor heat resistance, etc., achieve low high temperature volatility, enhance rigidity and crystallization performance, improve The effect of melting point
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Embodiment 1
[0037] Using isophthalic acid, ethylene glycol and phenolphthalein as basic raw materials, polycondensation reaction is carried out under vacuum to obtain a heat-resistant and corrosion-resistant engineering plastic masterbatch; the heat-resistant and corrosion-resistant engineering plastic masterbatch is prepared by the following process:
[0038] With isophthalic acid, ethylene glycol and phenolphthalein as basic raw materials, isophthalic acid, ethylene glycol and phenolphthalein as basic raw materials are respectively 60 parts, 30 parts and 12 parts by weight;
[0039] Mix isophthalic acid, ethylene glycol, phenolphthalein, catalyst and antioxidant evenly, add to the reaction kettle and stir, then heat for esterification reaction, the temperature of esterification reaction is 240°C, when the esterification reaches 95% or more , the end of the esterification reaction; after the end of the esterification reaction, add a stabilizer to the obtained product, and carry out a poly...
Embodiment 2
[0060] Using isophthalic acid, ethylene glycol and phenolphthalein as basic raw materials, polycondensation reaction is carried out under vacuum to obtain a heat-resistant and corrosion-resistant engineering plastic masterbatch; the heat-resistant and corrosion-resistant engineering plastic masterbatch is prepared by the following process:
[0061] With isophthalic acid, ethylene glycol and phenolphthalein as basic raw materials, isophthalic acid, ethylene glycol and phenolphthalein as basic raw materials are respectively 65 parts, 35 parts and 14 parts by weight;
[0062] Mix isophthalic acid, ethylene glycol, phenolphthalein, catalyst and antioxidant evenly, add to the reaction kettle and stir, then heat for esterification reaction, the temperature of esterification reaction is 245°C, when the esterification reaches 95% or more , the end of the esterification reaction; after the end of the esterification reaction, add a stabilizer to the obtained product, and carry out a poly...
Embodiment 3
[0083] Using isophthalic acid, ethylene glycol and phenolphthalein as basic raw materials, polycondensation reaction is carried out under vacuum to obtain a heat-resistant and corrosion-resistant engineering plastic masterbatch; the heat-resistant and corrosion-resistant engineering plastic masterbatch is prepared by the following process:
[0084] With isophthalic acid, ethylene glycol and phenolphthalein as basic raw materials, isophthalic acid, ethylene glycol and phenolphthalein as basic raw materials are respectively 70 parts, 45 parts and 15 parts by weight;
[0085] Mix isophthalic acid, ethylene glycol, phenolphthalein, catalyst and antioxidant evenly, add to the reaction kettle and stir, then heat for esterification reaction, the temperature of esterification reaction is 250°C, when the esterification reaches 95% or more , the end of the esterification reaction; after the end of the esterification reaction, add a stabilizer to the obtained product, and carry out a poly...
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