Flame-retarding acid-alkali-resistant plastic comprising polyhexamethylene adipamide
A technology of polyhexamethylene adipamide and acid and alkali resistance, which is applied in the field of flame retardant acid and alkali resistant plastics, can solve the problems of plastic flame retardancy and poor acid and alkali resistance, and achieve good flame retardant effect, good flame retardant and The effect of acid-base properties
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Embodiment 1
[0007] Adjust the temperature of the reaction vessel to 60°C, take 30kg of polyhexamethylene adipamide, put it into the reaction kettle, stir, and at the same time add 30kg of propylene carbonate, then add 30kg of diethyl phthalate, add 10kg of silicon dioxide, and then Add 10kg of graphite, then add 10kg of diboron trioxide and 20kg of polyurethane in turn. After stirring thoroughly, heat to 200°C and keep for 10h. After cooling, a flame-retardant, acid- and alkali-resistant plastic containing polyhexamethylene adipamide is obtained. Determination of acid-base time is 20 days.
Embodiment 2
[0009] Open the reaction container, adjust the temperature to 60°C, take 40kg of polyhexamethylene adipamide, put it into the reaction kettle, stir, and add 40kg of propylene carbonate, 40kg of diethyl phthalate, and 20kg of silicon dioxide , then add 20kg of graphite, then sequentially add 20kg of diboron trioxide and 30kg of polyurethane, after stirring thoroughly, heat to 200°C and keep for 10h, and after cooling, a flame-retardant, acid- and alkali-resistant plastic containing polyhexamethylene adipamide is obtained. The acid-base time is 25 days.
Embodiment 3
[0011] Adjust the temperature of the reaction vessel to 60°C, take 35 kg of polyhexamethylene adipamide, put it into the reaction kettle, stir, add 35 kg of propylene carbonate, then add 35 kg of diethyl phthalate, add 15 kg of silicon dioxide, and then Add 15kg of graphite, then add 15kg of diboron trioxide and 25kg of polyurethane in turn. After stirring thoroughly, heat to 200°C and keep for 10h. After cooling, a flame-retardant, acid- and alkali-resistant plastic containing polyhexamethylene adipamide is obtained. Determination of acid-base time is 23 days.
[0012] Flame retardancy and acid and alkali test results
[0013] Example 1 Example 2 Example 3 flame retardant V-1 V-1 V-1 Acid and alkali resistance No abnormal changes No abnormal changes No abnormal changes
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