Flame retardant and use thereof in polymer modification
A flame retardant and polymer technology, applied in the field of flame retardant and its application in polymer modification, can solve the problems of poor affinity, affecting the processing and mechanical properties of polymer materials, and poor dispersibility. , to achieve the effect of improving dispersibility, processability and mechanical properties, and compatibility.
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[0016] Example 1
[0017] Put 10000g of magnesium hydroxide, 500g of stearic acid, 500g of zinc borate and 500g of KH-560 silane coupling agent into a high temperature mixing kettle, heat up to 80±5℃, stir at high speed for 20-30 minutes to obtain the flame retardant .
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[0018] Example 2
[0019] 3250g of the flame retardant obtained in Example 1 was blended uniformly with 1750g of low density polyethylene in a high-speed mixer. Then extrude on a twin-screw extruder with an extrusion temperature of 180°C, water cooling, and pelletizing to obtain a flame-retardant polyethylene material. The mechanical properties and flame-retardant properties are shown in Table 1.
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[0020] Example 3
[0021] Combine 10000 g of magnesium hydroxide, 500 g of stearic acid, 500 g of zinc borate and 500 g of KH-570 silane coupling agent, heat up to 80±5°C, stir at high speed for 20-30 minutes to obtain a flame retardant.
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