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A kind of polystyrene composite plastic and preparation method thereof

A polystyrene and composite plastic technology, applied in the field of polystyrene composite plastic and its preparation, can solve the problem of affecting the use space of plastic, increasing the application range of polystyrene plastic, and not significantly improving the fracture resistance and bending strength, etc. question

Active Publication Date: 2016-01-20
汕头市西利实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These obvious defects will affect the use space of plastics with polystyrene as the main component. If their fracture resistance and bending strength can be significantly improved, the application range of polystyrene plastics will be greatly increased.
[0003] In polystyrene composite plastics, adding some conventional coupling agents, lubricants and ordinary materials cannot significantly improve its fracture resistance and bending strength. Therefore, we still need to continue to explore some new polymer materials to improve Related Properties of Polystyrene Composite Plastics

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] A kind of preparation method of polystyrene composite plastics, preparation method comprises the following steps: (1) take polystyrene as 26kg, aramid fiber as 14kg, adipic anhydride as 5kg, epoxy butyl oleate as 6kg, pentaerythritol ester 6kg for low-density polyethylene, 15kg for glass fiber, put all the above ingredients into a high-temperature mixer, adjust the temperature of the mixer to 150°C, and melt and mix at high temperature until uniform; (2) Melt and mix evenly at high temperature The mixture is extruded with a twin-screw extruder, the twin-screw extruder speed is 50rpm, the length-to-diameter ratio of the twin-screw extruder is 40:1, and the extrusion temperature is as follows: the first section is 170°C, the second The first stage is 190°C, and the third stage is 220°C; (3) After extrusion, the composite plastic material is naturally cooled to obtain polystyrene composite plastic.

Embodiment 2

[0014] A kind of preparation method of polystyrene composite plastics, preparation method comprises the following steps: (1) take polystyrene as 28kg, aramid fiber as 12kg, adipic anhydride as 6kg, epoxy butyl oleate as 4kg, pentaerythritol ester 8kg for low density polyethylene, 3kg for glass fiber, and 13kg for glass fiber. Put all the above ingredients into a high-temperature mixer, adjust the temperature of the mixer to 150°C, and melt and mix at high temperature until uniform; (2) Melt and mix evenly at high temperature The mixture is extruded with a twin-screw extruder, the twin-screw extruder rotating speed is 70rpm, the aspect ratio of the twin-screw extruder is 40:1, and the extrusion temperature is as follows: the first section is 172 ° C, the second The first stage is 175°C, and the third stage is 190°C; (3) After extrusion, the composite plastic material is naturally cooled to obtain polystyrene composite plastic.

Embodiment 3

[0016] A kind of preparation method of polystyrene composite plastics, preparation method comprises the following steps: (1) take polystyrene as 30kg, aramid fiber as 13kg, adipic anhydride as 7kg, epoxy butyl oleate as 5kg, pentaerythritol ester 9kg for low density polyethylene, 4kg for low density polyethylene, and 11kg for glass fiber. Put all the above ingredients into a high-temperature mixer, adjust the temperature of the mixer to 150°C, and melt and mix at high temperature until uniform; (2) Melt and mix evenly at high temperature The mixture is extruded with a twin-screw extruder, the twin-screw extruder rotating speed is 80rpm, the length-to-diameter ratio of the twin-screw extruder is 40:1, and the extrusion temperature is as follows: the first section is 175°C, the second The first stage is 180°C, and the third stage is 210°C; (3) After extrusion, the composite plastic material is naturally cooled to obtain polystyrene composite plastic.

[0017] Measured the elonga...

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Abstract

The invention relates to polystyrene composite plastic and a preparation method thereof. The polystyrene composite plastic comprises the following components in parts by weight: 26-30 parts of polystyrene, 12-14 parts of aramid fiber, 5-7 parts of adipic anhydride, 4-6 parts of epoxy butyl oleate, 6-9 parts of pentaerythritol ester, 2-4 parts of low density polyethylene and 11-15 parts of glass fiber. The preparation method of the polystyrene composite plastic comprises the steps of: firstly performing high-temperature melting and mixing on all components of the composite plastic, secondly, processing by twin-screw extrusion, and finally, cooling to room temperature to obtain the polystyrene composite plastic. The prepared polystyrene composite plastic is higher in elongation resistance at break and bending strength, and can be used in fields such as containers, appliances, and communication equipment.

Description

technical field [0001] The invention relates to a composite plastic and a preparation method thereof, in particular to a polystyrene composite plastic and a preparation method thereof. Background technique [0002] Polystyrene plastic is widely used and can be used in optical instruments, daily necessities and other fields, and can be made into trays, soap boxes, rulers, etc. Polystyrene plastic is relatively brittle, and polystyrene plastic will break when subjected to greater pressure. These obvious defects will affect the use space of plastics with polystyrene as the main component. If the fracture resistance and bending strength can be significantly improved, the application range of polystyrene plastics will be greatly increased. [0003] In polystyrene composite plastics, adding some conventional coupling agents, lubricants and ordinary materials cannot significantly improve its fracture resistance and bending strength. Therefore, we still need to continue to explore ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L25/06C08L77/10C08L23/06C08K13/04C08K7/14C08K5/1539C08K5/1515C08K5/10B29C47/92B29C48/92
CPCB29C48/40B29C48/625B29C48/875B29C48/92B29C2948/9259B29C2948/92704B29C2948/92895
Inventor 石磊
Owner 汕头市西利实业有限公司