Unsaturated polyester resin composite material with excellent flame retardant property
A technology of polyester resin and composite materials, which is applied in the direction of foam dispersion/prevention, can solve the problems of limited application, and achieve the effects of wide application scenarios, high fire safety, and excellent flame retardancy
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Embodiment 1
[0035] Mix 100g of 191-type unsaturated polyester resin, 3g of expandable graphite and 7g of ammonium polyphosphate into which the merchant has added the accelerator (5% cobalt naphthenate solution, the addition amount is 1g), and then stir with a glass rod until there is no Obvious lumps, then at room temperature (25-30°C), use a stirrer to quickly stir for 30min, add 1g of curing agent and continue to stir for 2-3min, stir well to obtain a homogeneous solution, put the obtained solution in a vacuum drying box for vacuum After defoaming for 10 minutes, it was poured into the prepared mold and cured at 40°C for 2 hours and 80°C for 2 hours. After the curing is completed, the mold is cooled to room temperature and demolded to obtain an unsaturated polyester resin composite material with excellent flame retardancy.
Embodiment 2
[0037] Mix 100g of 191-type unsaturated polyester resin, 3g of expandable graphite and 7g of ammonium polyphosphate into which the merchant has added the accelerator (5% cobalt naphthenate solution, the addition amount is 1g), and then stir with a glass rod until there is no Obvious lumps, then use a stirrer to quickly stir for 30min at normal temperature (25-30℃), then take out the solution and place it in a vacuum drying box for the first vacuum defoaming treatment for about 10min (depending on the amount of bubbles After the bubbles are eliminated, add 1g of curing agent and continue to stir for 2-3min. After stirring evenly, a homogeneous solution is obtained. The obtained solution is placed in a vacuum drying box for secondary vacuum defoaming for 2-3min. The solution after elimination was poured into the prepared mold, and cured at 40°C for 2 hours and at 80°C for 2 hours. After the curing is completed, after the mold is cooled to room temperature, the mold is demolded t...
Embodiment 3
[0039] Mix 100g of 191-type unsaturated polyester resin, 2g of expandable graphite, and 7g of ammonium polyphosphate into which the merchant has added the accelerator (5% cobalt naphthenate solution, the addition amount is 1g), and then stir with a glass rod until there is no Obvious lumps, then use a stirrer to quickly stir for 30min at normal temperature (25-30℃), then take out the solution and place it in a vacuum drying box for the first vacuum defoaming treatment for about 10min (depending on the amount of bubbles After the bubbles are eliminated, add 1g of curing agent and continue to stir for 2-3min. After stirring evenly, a homogeneous solution is obtained. The obtained solution is placed in a vacuum drying box for secondary vacuum defoaming for 2-3min. The solution after elimination was poured into the prepared mold, and cured at 40°C for 2 hours and at 80°C for 2 hours. After the curing is completed, after the mold is cooled to room temperature, the mold is demolded ...
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