Flame retardant engravable epoxy resin mortar and preparation method thereof
An epoxy resin and mortar technology, applied in the field of artificial landscaping materials, can solve the problems of high price, poor impact resistance, poor plastering and construction, and achieve the effects of reducing pollution, good smoothness, and reducing construction costs.
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[0033] The present invention also provides a preparation method of the aforementioned flame-retardant engravable epoxy resin mortar, which comprises the following steps:
[0034] a. Prepare the first composition mixture:
[0035] (1) 30-70 parts by weight of epoxy resin and 2-20 parts by weight of active toughening agent are preheated at 50-60°C for 1 hour and then added to the mixer;
[0036] (2) Control the agitator at 400~600r / min, add 1~10 parts by weight of active diluent and 0.1~4 parts by weight of thixotropic agent in sequence, and then disperse for 10~15 minutes;
[0037] (3) Increase the speed of the stirrer to 800-1000r / min, mix 10-50 parts by weight of filler, 0.5-6 parts by weight of hollow microspheres, 5-20 parts by weight of flame retardant, and 0-15 parts by weight of pigment. Add three times, after all of them are added, increase the speed of the stirrer to 1500r / min and continue to disperse for 30 minutes to form the first composition mixture;
[0038] b. Modulate th...
Example Embodiment
[0046] Example 1
[0047] First, prepare the first composition mixture: 30 parts by weight of epoxy resin and 3 parts by weight of active toughening agent are preheated at 50-60°C for 1 hour, and then added to the mixer. In this embodiment, the epoxy resin is a hydrogenated ring. Oxygen resin, active toughening agent is polyurethane modified epoxy resin. Start the stirring, control the speed of the stirrer at 400-600r / min, add 5 parts by weight of the active diluent and 1 part by weight of the thixotropic agent in order, and continue to disperse for 10-15 minutes. Then increase the speed of the stirrer to 800~1000r / min, mix 42 parts by weight of filler, 15 parts by weight of flame retardant, and 4 parts by weight of hollow microspheres and add them in 3 times. After each addition, disperse until no dry powder is seen. Then carry out the next addition, after all the additions, increase the stirrer speed to 1500r / min and continue to disperse for 30 minutes.
[0048] Then prepare th...
Example Embodiment
[0050] Example 2
[0051] Firstly, the first composition mixture is prepared: 45 parts by weight of epoxy resin and 2 parts by weight of active toughening agent are preheated at 50-60°C for 1 hour, and then added to a mixer for stirring. In this example, the epoxy resin is double Phenol A ring, active toughening agent is polyurethane modified epoxy resin. Then, the speed of the stirrer is controlled at 400-600r / min, 2 parts by weight of butyl glycidyl ether and 0.5 parts by weight of bentonite powder are added in sequence, and the dispersion is continued for 10-15 minutes. Then increase the speed of the stirrer to 800~1000r / min, and then mix 30 parts by weight of heavy calcium, 20 parts by weight of antimony trioxide, and 0.5 parts by weight of silicone hollow resin microspheres, and then add them to the agitator three times. After each addition , After dispersing until there is no dry powder, proceed to the next feeding. After all the powder is added, increase the speed to 1500...
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