Nanocellulose reinforced and toughened nylon 66 composite material and preparation method of composite material
A technology of nano-cellulose and composite materials, which is applied in the field of new varieties of modified engineering plastics, can solve the problems that are difficult to apply to the plastic modification industry, difficult to disperse nano-cellulose, etc., and achieve high strength, broad market prospects, and good fluidity Effect
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Embodiment 1
[0027] (1) Put 0.5 part of paper pulp, 0.025 part of triethanolamine and 5 parts of nylon 66 resin into a ball mill and ball mill for 0.5 hour and then take it out to obtain a nanocellulose / nylon 66 mixture;
[0028] (2) Weigh 68 parts of nylon 66 resin, 0.3 part of KH550 coupling agent, 0.8 part of TAF dispersion lubricant, 0.1 part of nucleating agent, 0.3 part of antioxidant and step (1) gained nanocellulose / nylon 66 mixture into Mix in a high-speed mixer for 5 minutes;
[0029] (3) Put the mixed material obtained in step (2) into the main feed, and put 25 parts of chopped glass fibers into the side feed, extrude through a twin-screw extruder, draw, cool, and pelletize , drying treatment; the main screw speed is 180 rpm, and the temperature of each section of the extruder is respectively 245°C, 265°C, 270°C, 275°C, 275°C, 275°C, 270°C from the feeding port to the machine head. ℃, 270℃, 265℃;
[0030] (4) Standard samples were injection molded, the injection molding temper...
Embodiment 2
[0033] (1) Put 3 parts of paper pulp, 0.15 parts of polymerized polyol and 30 parts of nylon 66 resin into a ball mill and take it out after ball milling for 2 hours to obtain a nanocellulose / nylon 66 mixture;
[0034] (2) Weigh 35.5 parts of nylon 66 resin, 0.15 parts of KH550, 0.8 parts of TAF and silicone powder dispersing lubricant in a ratio of 1:1, 0.1 parts of nucleating agent, 0.3 parts of antioxidant and the nanofibers obtained in step (1) Put plain / nylon 66 into the high-speed mixer and mix for 3 minutes; then mix 0.15 parts of KH560 coupling agent with the material obtained in step (2) in the high-speed mixer for 2 minutes;
[0035] (3) Put the mixed material obtained in step (2) into the main feed, and put 30 parts of chopped glass fibers into the side feed, extrude through a twin-screw extruder, draw, cool, and pelletize , drying treatment; the main screw speed is 220 rpm, and the temperature of each section of the extruder is respectively 240°C, 270°C, 275°C, 275...
Embodiment 3
[0039](1) Put 6 parts of paper pulp, 0.3 part of diaminosilicone oil and 60 parts of nylon 66 resin into a ball mill and take it out after ball milling for 4 hours to obtain a nanocellulose / nylon 66 mixture;
[0040] (2) Weigh 2.5 parts of nylon 66 resin, 0.3 part of KH550, 0.8 part of TAF dispersion lubricant, 0.1 part of nucleating agent, 0.3 part of antioxidant and step (1) gained nanocellulose / nylon 66 into a high-speed mixer Mix for 5 minutes;
[0041] (3) Put the mixed material obtained in step (2) into the main feed, and put 30 parts of chopped glass fibers into the side feed, extrude through a twin-screw extruder, draw, cool, and pelletize , drying treatment; the main screw speed is 240 rpm, and the temperature of each section of the extruder is respectively 250°C, 265°C, 270°C, 270°C, 270°C, 270°C, 270°C from the feeding port to the machine head. ℃, 270℃, 270℃;
[0042] (4) Standard specimens were injection molded, the injection molding temperatures were 280°C, 280°...
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