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Halogen-free flame-retardant system for PA66 engineering plastic preparation, PA66 composite material and preparation thereof
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An engineering plastic, PA66 technology, applied in the product PA66 engineering plastic composite material and its preparation, and the field of flame retardant system, can solve the problems of adverse environmental impact and achieve the effect of environmental friendliness and excellent flame retardant performance
Active Publication Date: 2011-06-08
宁波华腾首研新材料有限公司
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[0005] Patent Publication No. CN101333298A uses a mixture of hyperbranched polyamide ester and rare earthoxide as a flame retardant system. This patent uses dioctyl phthalate and polyvinyl chloride, which are prohibited or restricted in RoHS and REACH restrictions. Therefore, the Prepared products that have adverse effects on the environment
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Embodiment 1
[0038] Component A: nucleating agent organic rare earthphosphate salt nucleating agent (R is ethyl) 0.6 kg, antioxidant 0.24 kg 1010 and 0.36 kg 168, external lubricanttalcpowder 0.96 kg and siliconepowder 0.24 kg, carbon Black 4 kg, 5.6 kg PE; total 12 kg
[0039] B component: 15 kg, composed of 10 kg B1(R 1 Ethyl, R 2 It is isopropyl), 3.3 kg of MPP, 1.7 kg of zinc borate, and Re is lanthanum.
[0041] After mixing the above ingredients uniformly, they are introduced into a 53mm twin-screw extruder, extruded, cooled, and pelletized to obtain the final product of Example 1.
Embodiment 2
[0043] A component: nucleating agent organic rare earth phosphate salt nucleating agent (R is ethyl) 0.55 kg, antioxidant 0.22 kg 1010 and 0.33 kg 168, external lubricanttalcpowder 0.88 kg and silicone powder 0.22 kg, carbon Black 3.7 kg, 5.1 kg PE; 11 kg in total
[0044] B component: 16 kg, mixed with 10.7 kg B2, 3.6 kg MPP and 1.7 kg zinc borate, Re is lanthanum.
[0046] After mixing the above ingredients uniformly, they are introduced into a 53mm twin-screw extruder, extruded, cooled, and pelletized to obtain the final product of Example 2.
Embodiment 3
[0048] A component: nucleating agent organic rare earth phosphate salt nucleating agent (R is ethyl) 0.55 kg, antioxidant 0.22 kg 1010 and 0.33 kg 168, external lubricant talc powder 0.88 kg and silicone powder 0.22 kg, carbon Black 3.7 kg, 5.1 kg PE; 11 kg in total
[0049] B component: 13 kg, mixed with 8.7 kg B2, 2.9 kg MPP, and 1.4 kg zinc borate, Re is lanthanum.
[0051] After mixing the above ingredients uniformly, they are introduced into a 53mm twin-screw extruder, extruded, cooled, and pelletized to obtain the final product of Example 3.
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Abstract
The invention relates to a halogen-free fire-retarding system used in the preparation of PA66 engineering plastics, a PA66 composite material and a preparation method thereof, which belongs to the field of macromolecular material. The PA66 composite material is obtained by introducing PA66, part PA6 resin, fiber glass, toughener and A component and B component into a double screw extruder to carry out extrusion, cooling and granulation, wherein A component is master batch prepared by mixed organic rare earthphosphate salt nucleating agent, antioxidant, outer lubricant, pigment and polyethylene; and B component is a halogen-free fire-retarding system formed by mixing organic phosphonate, melaminepyrophosphate (MPP) and zinc borate in the weight ratio of 3:1:0.5. The halogen-free fire-retarding system has excellent heat resistance, hydrolyzation resistance and fire-retarding performance; moreover, a product prepared by adding the fire-retarding system has the characteristics of good combination property, environmental friendliness and environment related matter content according with the European Union RoHS standards, and is suitable for electronic and electrical products.
Description
Technical field: [0001] The invention belongs to the field of polymer materials, relates to polyhexamethylene adipamide (PA66) modified engineering plastics mainly used in electronic and electrical products, and particularly relates to the flame retardant system in the preparation process of PA66 modified engineering plastics, and the product PA66 engineering Plastic composite material and its preparation method, Background technique: [0002] Flame retardants need to be added to PA66 engineering plastics to improve the flame retardancy of PA66. For a long time, the flame-retardant polyhexamethylene adipamide (PA66) modified engineering plastics usually use brominated flame retardants, and the modified PA66 with brominated flame retardants has the advantages of high flame retardant efficiency and good flame retardant effect. However, bromine-based flame retardants contain environmental-related substances, which may have adverse effects on the environment. With the promulgation ...
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