Glass fiber reinforced composite material and preparation method thereof
A technology for reinforced composite materials and glass fiber, which is applied in the field of glass fiber reinforced composite materials and its preparation, can solve the problems of insufficient interface bonding strength, reduced application range, and reduced material strength, and achieves reduction of dosage, saving dosage, and increasing Effect of contact area
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Embodiment 1
[0016] Formula: roughened glass fiber, polypropylene, maleic anhydride PP grafted.
[0017] Equipment: 35SHJ twin-screw extrusion granulation unit.
[0018] Step 1: Stir 188g of anti-wear additive, 65g of lubricant, 35g of antioxidant, and 35g of ultraviolet absorber in a high-speed mixer at 1400rpm for 10 minutes to fully mix;
[0019] Step 2: mix the mixture obtained in step 1 with 5000g polypropylene, 625g HDPE, 312g anti-impact additive, 65g maleic anhydride PP graft, a little white oil, and a little PP wax in a low-speed mixer;
[0020] Step 3: All the components obtained in Step 2 are melted by a twin-screw extruder and at the same time specially mixed with surface roughened glass fiber. Parts are blown dry and then enter the granulator to cut the material. The cut particles fall into the vibrating sieve and are transported to the drying mixing drum by a high-pressure fan for mixing to make the material uniform, and then further dry the material. The temperature settin...
Embodiment 2
[0022] Formula: roughened glass fiber, acrylonitrile, compatibilizer.
[0023] Equipment: 35SHJ twin-screw extrusion granulation unit
[0024] Preparation
[0025] Step 1: Stir 188g of anti-wear additive, 65g of lubricant, 35g of antioxidant, and 35g of ultraviolet absorber in a high-speed mixer at 1400rpm for 10 minutes to fully mix;
[0026] Step 2: mix the mixture obtained in step 1 with 5000g acrylonitrile, 625g HDPE, 312g anti-impact additive, 65g compatibilizer, and a little white oil in a low-speed mixer;
[0027] Step 3: All the components obtained in Step 2 are melted by the twin-screw extruder, and at the same time, the long glass fiber is fed into the screw for fusion through the side feeder. Dry the moisture on the surface of the material and then enter the granulator to cut the material. The cut particles fall into the vibrating screen and are transported to the drying mixing drum by a high-pressure fan for mixing to make the material uniform, and then further d...
Embodiment 3
[0029] 1. Prepare the following raw materials in the total mass percentage, including 5% roughened glass fiber, 80% butadiene, 3% maleic anhydride PP graft or compatibilizer, 10% impact resistance additive, and the rest is mixed Accessories;
[0030] 2. Put the mixed auxiliary materials, butadiene, HDPE, anti-impact additive, maleic acid PP graft, trace white oil and PP wax into a low-speed mixer and mix evenly;
[0031] 3. The mixture obtained in step 2 is put into a twin-screw extruder, and at the same time, it is mixed with roughened glass fibers for melting, and the extruded material strands are subjected to subsequent processing to obtain finished products.
[0032] The parameters of the twin-screw extruder are set to 180 degrees in the feeding section, 200 degrees in the mixing section, 200 degrees in the compression section, and 190 degrees in the die section; the screw speed of the main engine is 250-350 rpm, the speed of the conveying screw is 30 rpm, and the feeding ...
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