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A kind of polycarbonate composite plastic and preparation method thereof

A polycarbonate and composite plastic technology, applied in the field of polycarbonate composite plastic and its preparation, can solve the problems of poor tensile strength and fracture resistance of polycarbonate and limit the wide use of polycarbonate, and achieve high elongation at break Effect of elongation and high tensile strength

Active Publication Date: 2016-01-20
长春中新泰富汽车零部件有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The tensile strength and fracture resistance of polycarbonate are poor, which limits the wide use of polycarbonate as engineering plastics

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] A preparation method of polycarbonate composite plastics, the preparation method comprising the following steps: (1) Take 23kg of polycarbonate, 10kg of decyl methacrylate, and 10kg of methyl cellulose, and put the above ingredients into a stirring tank , adjust the temperature of the mixing tank to 130°C, melt and mix evenly at high temperature; (2) raise the temperature of the stirring tank to 165°C, then take 3kg of polyphenol oxygen resin, 2kg of polysulfone resin, 2kg of potassium stearate, mineral The oil is 5kg, put into the mixing tank, and stir evenly; (3) Extrude and granulate the high-temperature molten polycarbonate mixture with a twin-screw extruder, the speed of the twin-screw extruder is 120rpm, and the twin-screw extruder The length-to-diameter ratio of the press is 30:1, and the temperature in the extrusion section is: 200°C for the first section, 220°C for the second section, and 225°C for the third section; (4) Pelletize the composite plastic material ...

Embodiment 2

[0014] A preparation method of polycarbonate composite plastics, the preparation method comprising the following steps: (1) Take 24kg of polycarbonate, 12kg of decyl methacrylate, and 7kg of methyl cellulose, and put the above ingredients into a stirring tank , adjust the temperature of the stirring tank to 130°C, melt and mix evenly at high temperature; (2) raise the temperature of the stirring tank to 165°C, then take 5kg of polyphenol oxygen resin, 4kg of polysulfone resin, 4kg of potassium stearate, mineral The oil is 8kg, put it into the stirring tank, and stir evenly; (3) extrude and granulate the high-temperature molten polycarbonate mixture with a twin-screw extruder, the speed of the twin-screw extruder is 110rpm, and the twin-screw extruder The length-to-diameter ratio of the press is 30:1, and the temperature in the extrusion section is: 180°C for the first section, 210°C for the second section, and 230°C for the third section; (4) Pelletize the composite plastic mat...

Embodiment 3

[0016] A preparation method of polycarbonate composite plastics, the preparation method comprising the following steps: (1) Take 22kg of polycarbonate, 15kg of decyl methacrylate, and 8kg of methyl cellulose, and put the above ingredients into a stirring tank , adjust the temperature of the stirring tank to 130°C, melt and mix evenly at high temperature; (2) raise the temperature of the stirring tank to 165°C, then take 4kg of polyphenol oxygen resin, 6kg of polysulfone resin, 5kg of potassium stearate, mineral The oil is 7kg, put it into the mixing tank, and stir evenly; (3) extrude and granulate the high-temperature molten polycarbonate mixture with a twin-screw extruder, the speed of the twin-screw extruder is 115rpm, and the twin-screw extruder The length-to-diameter ratio of the press is 30:1, and the temperature in the extrusion section is: 190°C for the first section, 200°C for the second section, and 220°C for the third section; (4) Pelletize the composite plastic mater...

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Abstract

The invention relates to polycarbonate composite plastic and a preparation method thereof. The polycarbonate composite plastic composite plastic comprises the following components in parts by weight: 22-24 parts of polycarbonate, 10-15 parts of decyl-octyl methacrylate, 7-10 parts of methylcellulose, 3-5 parts of phenoxy, 2-6 parts of polysulfone resin, 2-5 parts of potassium stearate and 5-8 parts of mineral oil. The preparation method comprises the following preparation steps of: high-temperature melting, stirring, mixing, double-screw extrusion and granulation and the like. The prepared polycarbonate composite plastic overcomes the defects of lower tensile strength and lower breaking strength of the conventional polycarbonate composite plastic, and can be used for equipment of a mobile phone and a computer and the like.

Description

technical field [0001] The invention relates to a composite plastic and a preparation method thereof, in particular to a polycarbonate composite plastic and a preparation method thereof. Background technique [0002] Polycarbonate is an organic polymer material with many classifications, such as aliphatic and aromatic. The poor tensile strength and fracture resistance of polycarbonate limit the widespread use of polycarbonate as an engineering plastic. Polycarbonate is widely used in plastic containers, communication equipment, and electronics industries. The tensile strength and fracture strength of polycarbonate composites can be improved to a certain extent by group modification and blending modification of polycarbonate. [0003] Usually, after mixing polypropylene, polystyrene, polyoxymethylene, etc., the performance improvement of polycarbonate is not very obvious, and it still affects the application of polycarbonate plastics. Therefore, it is necessary to blend ne...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L69/00C08L1/28C08L71/12C08L81/06C08K5/101C08K5/098C08K5/01B29C47/92B29C48/92
CPCB29C48/04B29C48/40B29C48/875B29C48/92B29C2948/9259B29C2948/92704B29C2948/92885B29C2948/92895
Inventor 石磊
Owner 长春中新泰富汽车零部件有限公司
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