Glass fiber-enhanced montmorillonite-modified nylon composite material with low water absorption and high dimensional stability and preparation method thereof
A nylon composite material and dimensional stability technology, which is applied in the field of modified nylon composite materials, can solve problems such as the decline in mechanical properties of dimensional stable materials, restrictions on the application of nylon materials, and high water absorption of nylon materials, achieving high dimensional stability, Effect of high crystallinity and low water absorption
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[0021] Example 1
[0022] Preparation of montmorillonite-modified nylon compound: 95 parts by weight of nylon 6 (vacuum drying at 100° C. for 12 h), 5 parts by weight of montmorillonite modified by cetyltrimethylammonium bromide, and 0.1 part by weight of lubricant Pentaerythritol stearate, 0.05 parts by weight of antioxidant 1098 and 0.05 part by weight of antioxidant 168 were placed in a high-speed mixer for premixing for 10 minutes, and the mixture was added to the main feed port of the twin-screw extruder, and the screw speed was controlled to 450rpm , montmorillonite modified nylon compound is obtained after melt extrusion and granulation.
[0023] After 80 parts by weight of the above-mentioned montmorillonite modified nylon compound, 0.1 part by weight of lubricant pentaerythritol stearate, 0.1 part by weight of antioxidant 1098 and 0.1 part by weight of antioxidant 168 were placed in a high-speed mixer for premixing for 10 min, The main feed port was added to the twin...
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[0024] Example 2
[0025] Preparation of montmorillonite-modified nylon compound: 98 parts by weight of nylon 6 (vacuum drying at 100° C. for 12 h), 2 parts by weight of montmorillonite modified with cetyltributylphosphorus bromide, and 0.5 part by weight of lubricant Ethylene bis-stearamide, 0.25 parts by weight of antioxidant 1098 and 0.25 parts by weight of antioxidant 168 are placed in a high-speed mixer for premixing for 10 minutes, then the main material port of the mixture is added to the twin-screw extruder, and the screw speed is controlled. 450rpm, after melt extrusion and granulation, a montmorillonite modified nylon compound was obtained.
[0026] 70 parts by weight of the above-mentioned montmorillonite modified nylon compound, 0.15 parts by weight of lubricant ethylene bis-stearamide, 0.125 parts by weight of antioxidant 1098 and 0.125 parts by weight of antioxidant 168 are placed in a high-speed mixer after premixing for 10 minutes. , into the main feed port of...
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[0027] Example 3
[0028] Preparation of montmorillonite-modified nylon compound: 93 parts by weight of nylon 6 (vacuum drying at 100° C. for 12 h), 7 parts by weight of montmorillonite modified with cetyltrimethylammonium bromide, and 1 part by weight of lubricant silicon The ketone masterbatch, 0.5 parts by weight of antioxidant 1098 and 0.5 part by weight of antioxidant 168 were premixed in a high-speed mixer for 10 minutes, then the mixed material was added to the main feed port of the twin-screw extruder, and the screw speed was controlled at 450 rpm. The montmorillonite modified nylon compound is obtained after melt extrusion and granulation.
[0029] 60 parts by weight of the above-mentioned montmorillonite modified nylon compound, 0.2 parts by weight of silicone masterbatch, 0.15 parts by weight of antioxidant 1098 and 0.15 parts by weight of antioxidant 168 were placed in a high-speed mixer for premixing for 10 minutes, and then added to the twin screw The main feed ...
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