Polyurethane simulation flower and preparation method thereof
A technology for simulating flowers and polyurethane, applied in the chemical field, can solve the problems of falling off of flower and leaf debris, poor molding degree, etc., and achieve the effects of high production efficiency, low energy consumption and high simulation degree.
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Embodiment 1
[0027] A polyurethane artificial flower is made of component A and component B according to the following parts by weight:
[0028] A component:
[0029]
[0030] B component:
[0031] 32 parts of modified black material;
[0032] The modified black material is a modified black material with an NCO content of 28% obtained by reacting polyether polyol with a functionality of 2 and a molecular weight of 600 and the black material PM200 at a weight ratio of 30:85 at 85°C for 2.5 hours.
[0033] Its preparation method comprises the following steps:
[0034] Put the raw materials of component A into the mixer and mix evenly, adjust the constant material temperature to 25°C, adjust the speed of the agitator to 4500r / min, pour component B preheated to 23°C into component A and stir for 20 seconds, and mix the mixture The material is poured into a calla lily mold preheated to 40° C., and demolded after 8 minutes to obtain a calla lily simulation flower.
[0035] The artificial ...
Embodiment 2
[0037] A polyurethane artificial flower is made of component A and component B according to the following parts by weight:
[0038] A component:
[0039]
[0040] B component:
[0041] 30 parts of modified black material;
[0042] The modified black material is a modified black material with an NCO content of 28% obtained by reacting polyether polyol with a functionality of 2 and a molecular weight of 600 and the black material PM200 at a weight ratio of 20:80 at 80°C for 3 hours.
[0043] Its preparation method comprises the following steps:
[0044] Put the raw materials of component A into the mixer and mix evenly, adjust the constant material temperature to 23°C, adjust the speed of the stirrer to 4000r / min, pour component B preheated to 27°C into component A and stir for 15 seconds, and mix the mixture The material is poured into a tulip mold preheated to 35°C, and demolded after 10 minutes to obtain a tulip artificial flower.
[0045] The petals of the simulated t...
Embodiment 3
[0047] A polyurethane artificial flower is made of component A and component B according to the following parts by weight:
[0048] A component:
[0049]
[0050] B component:
[0051] 35 parts of modified black material;
[0052] The modified black material is a modified black material with an NCO content of 28% obtained by reacting polyether polyol with a functionality of 2 and a molecular weight of 600 and the black material PM200 at a weight ratio of 35:95 at 90°C for 2 hours.
[0053] Its preparation method comprises the following steps:
[0054] Put the raw materials of component A into the mixer and mix evenly, adjust the constant material temperature to 27°C, adjust the speed of the agitator to 5000r / min, pour component B preheated to 25°C into component A and stir for 25 seconds, and mix the mixture The material is poured into a mandala mold preheated to 45°C, and demolded after 5 minutes to obtain a mandala artificial flower.
[0055] The petals of the imitati...
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