One-step forming device for long glass fiber reinforced thermoplastic plastic plate
A technology for enhancing thermoplastic and plastic sheets, which can be applied to other household appliances, household appliances, flat products, etc., and can solve problems such as difficult structural uses
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[0017] Example 1
[0018] A vertically-arranged two-stage twin-screw extruder is used. The first-stage co-rotating twin-screw extruder is divided into 10 temperature control zones. The screw diameter is 30mm and L / D is 38. The extruder is divided into 6 temperature control zones, the screw diameter is 38mm, and the L / D is 18. The metered polypropylene and additives are fed into the first-stage co-rotating twin-screw extruder. 10% of the plastic mass) is introduced into the coupling agent infiltration tank on the surface treatment machine, and passes through 8 hot rollers (100 ° C) for 15 minutes, and then is fed into the second-stage twin-screw zone 3, where the glass fiber is sheared and opened. It is evenly mixed with the material sent from the first-stage co-rotating twin-screw extruder, extruded by the second-stage twin-screw coat hanger die (head pressure 8MPa), and then pressed into a plate by three rollers. Shape, cut, pack.
[0019] Measure the length and distributio...
Example Embodiment
[0020] Example 2
[0021] A vertically-arranged two-stage twin-screw extruder is used. The first-stage co-rotating twin-screw extruder is divided into 10 temperature control zones. The screw diameter is 30mm and L / D is 38. The extruder is divided into 6 temperature control zones, the screw diameter is 38mm, and the L / D is 18. The metered polypropylene and additives are fed into the first-stage co-rotating twin-screw extruder. 10% of the plastic mass) is introduced into the coupling agent infiltration tank on the surface treatment machine, and passes through 8 hot rollers (100 ° C) for 15 minutes, and then is fed into the second-stage twin-screw zone 3, where the glass fiber is sheared and opened. It is evenly mixed with the material sent by the first-stage co-rotating twin-screw extruder, extruded by the second-stage twin-screw coat hanger die (head pressure 16MPa), and then pressed into a plate by three rollers. Shape, cut, pack.
[0022] Measure the length and distribution...
Example Embodiment
[0023] Example 3
[0024]A vertically arranged two-stage twin-screw extruder is used. The first-stage co-rotating twin-screw extruder is divided into 9 temperature control zones, the screw diameter is 65mm, L / D is 40, and the second-stage counter-rotating parallel twin-screw The extruder is divided into 4 temperature control zones, the screw diameter is 75mm, and the L / D is 9. The metered polyvinyl chloride, additives, and activated calcium carbonate are fed into the first-stage co-rotating twin-screw extruder. The roving (accounting for 10% of the thermoplastic mass) is introduced into the coupling agent infiltration tank on the surface treatment machine, passed through 6 hot rollers (110 ° C) for 10 minutes, and then fed into the second-stage twin-screw zone 2, glass fiber After shearing, opening, and evenly mixing with the material sent from the first-stage co-rotating twin-screw extruder, it is extruded by the second-stage twin-screw coat hanger die (head pressure 8MPa), a...
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