Transparent flame-retardant PC composite and preparation method thereof

Abstract

The invention discloses a transparent flame-retardant PC composite and a preparation method thereof and belongs to the field of high polymer material preparation. According to the technical scheme, materials in a breathable discharging barrels are dried through heat generated by a heater, and air guide fan blades are driven by flowing or hot air to rotate at the same time so as to drive a cam to rotate, the protruding end of the cam extrudes a knocking hammer to knock one breathable discharging barrel to vibrate during rotation of the cam, and the breathable discharging barrel on the other side is influenced by a vibration frequency of the breathable discharging barrel, start to slowly vibrate along with the breathable discharging barrel and finally tend to be identically vibrate with the breathable discharging barrel, so that same-frequency resonance is achieved; after vibration is weakened and disappears, the protruding end of the cam rotates to the knocking hammer on the other side at the moment to enable the knocking hammer to knock and drive the breathable discharging barrel on the other side to vibration, so that same-frequency resonance is achieved again, and the drying effect is enhanced; and in the vibration process of the breathable discharging barrels, moving rods move along with the breathable discharging barrels and move opposite to the breathable discharging barrels under the attraction and fixing effect of arc-shaped magnet pieces, poking plates poke the materials to move, and thus the materials are fully heated and dried.

Description

technical field [0001] The invention relates to the field of polymer material preparation, and more specifically relates to a transparent flame-retardant PC composite material and a preparation method thereof. Background technique [0002] Polycarbonate (PC) is an engineering plastic with excellent performance, which has the advantages of high transparency, good dimensional stability, creep resistance and low water absorption, especially among transparent plastics, it has high impact strength and toughness, but PC It has high melt viscosity, poor fluidity, poor wear resistance, especially poor solvent resistance, and is prone to stress cracking. It is prone to cracking and swelling in a solvent environment, and the processing temperature is high, which limits the application range of PC. Ethylene glycol formate-1,4-cyclohexanedimethanol (PETG) is a new environmentally friendly transparent material with good solvent resistance, no whitening when bent, good fluidity, high tran...

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Problems solved by technology

[0002] Polycarbonate (PC) is an engineering plastic with excellent performance, which has the advantages of high transparency, good dimensional stability, creep resistance and low water absorption, especially among transparent plastics, it has high impact strength and toughness, but PC It has high melt viscosity, poor fluidity, poor wear resistance, especially poor solvent resistance, and is prone to stress cracking. It is prone to cracking and swelling in a solvent environment, and the processing temperature is high, which limits the application range of PC. Ethylene glycol formate-1,4-cyclohexanedimethanol (PETG) is a new environmentally friendly transparent material with good solvent resistance, no whitening when bent, good fluidity, high transparency, excellent Siloxane-polycarbonate block copolymer (Si-PC) is an environmentally friendly new transparent material with good solvent resistance and abrasion resistance. After mixing and manufacturing, a transparent flame-retardant PC composite material with excellent comprehensive properties such as high transparency, flame retardancy, mechanical properties, solvent resistance, wear resistance, and low-temperature injection molding can be obtained.

[0003] In the preparation process of transparent flame-retardant PC composite materials, it needs to be dried, but the drying device in the prior art is not enough to dry, which reduces the drying effect of transparent flame-retardant PC composite materials, prolongs the drying time, and improves the use. cost

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