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Polycarbonate composition with excellent wear resistance and low-temperature impact resistance and preparation method of polycarbonate composition

A technology of impact resistance and polycarbonate, which is applied in the field of polycarbonate composition and its preparation, can solve the problems of poor wear resistance of polycarbonate, achieve good wear resistance, excellent wear resistance, and excellent wear resistance Effect

Active Publication Date: 2019-05-10
广东联安防暴器材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Polycarbonate has poor abrasion resistance

Method used

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  • Polycarbonate composition with excellent wear resistance and low-temperature impact resistance and preparation method of polycarbonate composition
  • Polycarbonate composition with excellent wear resistance and low-temperature impact resistance and preparation method of polycarbonate composition
  • Polycarbonate composition with excellent wear resistance and low-temperature impact resistance and preparation method of polycarbonate composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Add 100 parts of polycarbonate, 12127 parts of dicarboxy-terminated nylon, 0.6 part of lubricant white oil, 10100.3 parts of antioxidant, and 0.3 part of antioxidant 168 into the mixer at room temperature and low speed for 38 seconds, and mix well Afterwards, it is added into a twin-screw extruder; after being melted and extruded, it is granulated to obtain a polycarbonate composition with excellent wear resistance and low-temperature impact resistance.

[0038]The low-speed stirring speed of the mixer is 100 rpm; the temperature of the first zone of the twin-screw extruder is normal temperature conveying, the temperature of the second zone is 200°C, the temperature of the third zone is 270°C, the temperature of the fourth zone is 280°C, and the temperature of the fifth zone is 290°C, the temperature in the sixth zone is 300°C; the speed of the twin-screw main engine is 460 rpm.

Embodiment 2

[0040] Add 100 parts of polycarbonate, 12127 parts of dicarboxy-terminated nylon, 2.5 parts of compound anti-wear agent, 0.6 part of lubricant white oil, 0.3 part of antioxidant 1010, and 0.3 part of antioxidant 168 into the mixer at room temperature , Stirring at a low speed for 38 seconds, mixing evenly and adding to a twin-screw extruder; pelletizing after melt extrusion to obtain a polycarbonate composition with excellent wear resistance and low temperature impact resistance.

[0041] The low-speed stirring speed of the mixer is 100 rpm; the temperature of the first zone of the twin-screw extruder is normal temperature conveying, the temperature of the second zone is 200°C, the temperature of the third zone is 270°C, the temperature of the fourth zone is 280°C, and the temperature of the fifth zone is 290°C, the temperature in the sixth zone is 300°C; the speed of the twin-screw main engine is 460 rpm.

Embodiment 3

[0061] 100 parts of polycarbonate, 6 parts of dicarboxy-terminated nylon 1212, 1 part of wollastonite (aspect ratio of 20:1, particle diameter of 5 microns), 4 parts of alumina (particle diameter of 3 microns), lubricant white oil 0.8 parts, and 0.4 parts of antioxidant 1010, 0.4 parts of antioxidant 168 are added to the mixer at room temperature and low speed and stirred for 37 seconds, mixed evenly and then added to the twin-screw extruder; A polycarbonate composition with excellent abrasion resistance and low-temperature impact resistance can be obtained.

[0062] The low-speed stirring speed of the mixer is 100 rpm; the temperature of the first zone of the twin-screw extruder is normal temperature conveying, the temperature of the second zone is 200°C, the temperature of the third zone is 270°C, the temperature of the fourth zone is 280°C, and the temperature of the fifth zone is 290°C, the temperature in the sixth zone is 300°C; the speed of the twin-screw main engine is ...

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Abstract

The invention provides a polycarbonate composition with excellent wear resistance and low-temperature impact resistance and a preparation method of the polycarbonate composition. The preparation method includes: adding, by weight, 100 parts of polycarbonate, 5-10 parts of dicarboxyl terminated nylon 1212, 1-5 parts of a self-made compound wear-resistant agent, 0.1-1 part of a lubricant and 0.1-1 part of an antioxidant into a mixer, stirring for 30-40s at the normal temperature at a low speed, and adding into a two-screw extruder after well mixing, wherein the part by weight of the self-made compound wear-resistant agent is 0 when the self-made compound wear-resistant agent is not added; granulating after melt extrusion, so that the polycarbonate composition with excellent tensile strength,wear resistance and low-temperature impact resistance is obtained. The polycarbonate composition is applicable to fields of mobile phone shells, vehicles (including bullet trains, high-speed trains and automobiles), airplane compartments, ceilings, windows, door sheets, dashboards, refrigerator internal shelves, helmets, safety helmets, computers, medicinal treatment and healthcare, recreation and protective equipment, industrial safety baffles, bullet-proof glass and the like.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a polycarbonate composition with excellent wear resistance and low-temperature impact resistance and a preparation method thereof. Background technique [0002] Polycarbonate (referred to as PC) is a high molecular polymer containing carbonate groups in the molecular chain. According to the structure of the ester group, it can be divided into aliphatic, aromatic, aliphatic-aromatic and other types. Among them, the low mechanical properties of aliphatic and aliphatic-aromatic polycarbonates limit their application in engineering plastics. Only aromatic polycarbonate has been produced industrially. Due to the special structure of polycarbonate, it has become the fastest-growing general-purpose engineering plastic among the five major engineering plastics. [0003] Polycarbonate is colorless and transparent, heat-resistant, impact-resistant at room temperature, flame-ret...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L69/00C08L77/06C08K3/34C08K3/22C08K9/04C08K5/134C08K5/526C08K13/06B29B9/06
Inventor 刘卫伟汪龙翔
Owner 广东联安防暴器材有限公司
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