Glass fiber reinforced PA6 composition with improved surface fiber exposing phenomenon, and preparation method thereof

A technology of composition and glass fiber, which is applied in the field of glass fiber reinforced PA6 composition and its preparation to improve the floating fiber phenomenon, can solve the problems affecting the performance of pressure-resistant parts and the appearance of PA parts, and achieve the improvement of mechanical properties. Strength, increased absorption and dissipation effects, torque reduction effects

Inactive Publication Date: 2017-12-22
HEFEI GENIUS NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the floating fiber phenomenon not only affects the appearance of PA parts, but also affects its performance as a pressure-resistant part.

Method used

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  • Glass fiber reinforced PA6 composition with improved surface fiber exposing phenomenon, and preparation method thereof
  • Glass fiber reinforced PA6 composition with improved surface fiber exposing phenomenon, and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] (1) Dry PA6 at 110°C for 4 hours; PA66 at 110°C for 4 hours;

[0035] (2) Take by weighing 60 parts of dry PA6, 1 part of PA66, 25 parts of glass fibers, 5 parts of magnesium sulfate whiskers, 5 parts of sodium benzoate, and 5 parts of silicone oil;

[0036] (3) Stir the material weighed in the above step (2) in a high-speed mixer for 3 minutes;

[0037] (4) Then the above-mentioned uniformly mixed material is added to the feeding port of the twin-screw extruder;

[0038] (5) The material is melted and extruded by a twin-screw extruder, and granulated;

[0039] The processing technology of the twin-screw extruder is as follows: the temperature of the first zone of the twin-screw extruder is 230°C, the temperature of the second zone is 245°C, the temperature of the third zone is 255°C, the temperature of the fourth zone is 265°C, the temperature of the fifth zone is 260°C, and the temperature of the sixth zone The temperature is 265°C, the head temperature is 265°C, an...

Embodiment 2

[0041] (1) Dry PA6 at 110°C for 4 hours; PA66 at 110°C for 4 hours;

[0042] (2) take by weighing dry 40 parts of PA6, 10 parts of PA66, 30 parts of glass fiber, 15 parts of magnesium sulfate whiskers, 5 parts of toughening agent maleic anhydride grafted ethylene-octene copolymer, 10 parts 10 parts of sodium benzoate, 10 parts of silicone oil;

[0043] (3) Stir the material weighed in the above step (2) in a high-speed mixer for 3 minutes;

[0044] (4) Then the above-mentioned uniformly mixed material is added to the feeding port of the twin-screw extruder;

[0045] (5) The material is melted and extruded by a twin-screw extruder, and granulated;

[0046] The processing technology of the twin-screw extruder is as follows: the temperature of the first zone of the twin-screw extruder is 220°C, the temperature of the second zone is 225°C, the temperature of the third zone is 235°C, the temperature of the fourth zone is 245°C, the temperature of the fifth zone is 240°C, and the ...

Embodiment 3

[0048] (1) Dry PA6 at 140°C for 4-5h; PA66 at 120°C for 5h;

[0049] (2) Weigh dry 40 parts of PA6, 5 parts of PA66, 35 parts of glass fiber, 10 parts of magnesium sulfate whiskers, 3 parts of toughening agent ethylene-methyl acrylate copolymer, 5 parts of sodium benzoate , 5 parts of silicone oil;

[0050] (3) Stir the material weighed in the above step (2) in a high-speed mixer for 3 minutes;

[0051] (4) Then the above-mentioned uniformly mixed material is added to the feeding port of the twin-screw extruder;

[0052] (5) The material is melted and extruded by a twin-screw extruder, and granulated;

[0053] The processing technology of the twin-screw extruder is as follows: the temperature of the first zone of the twin-screw extruder is 240°C, the temperature of the second zone is 255°C, the temperature of the third zone is 265°C, the temperature of the fourth zone is 275°C, the temperature of the fifth zone is 270°C, and the temperature of the sixth zone is 270°C. The t...

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Abstract

The invention discloses a glass fiber reinforced PA6 composition with improved surface fiber exposing phenomenon, and a preparation method thereof, wherein the glass fiber reinforced PA6 composition is prepared from the following components by weight: PA6, PA66, glass fiber, magnesium sulfate crystal whisker, a toughening agent, a nucleating agent, and silicone oil. According to the present invention, the compatibility between the glass fiber and nylon resin is enhanced by mixing the magnesium sulfate crystal whisker and the silicone oil; the similar anchor consolidation point cross-linking point is formed between the glass fiber and the nylon resin, such that the bonding state between the glass fiber and the nylon resin is improved, the separation of the glass fiber and the nylon resin is reduced, and the glass fiber and the resin synchronously flow during the processing and are not easily torn separately so as to substantially reduce the exposure of the glass fiber; and the mechanical strength of the PA6 composition is increased by adding PA66.

Description

technical field [0001] The invention belongs to the field of polymer composite materials, and in particular relates to a glass fiber reinforced PA6 composition for improving the phenomenon of floating fibers and a preparation method thereof. Background technique [0002] Polyamide (PA, commonly known as nylon) is the first resin developed by DuPont in the United States for fiber, and it was industrialized in 1939. Polyamide began to develop and produce injection molding products in the 1950s to replace metals to meet the requirements of lightweight and cost-reducing downstream industrial products. PA has good comprehensive properties, including mechanical properties, heat resistance, wear resistance, chemical resistance and self-lubrication, and has a low coefficient of friction, as well as certain flame retardancy, and is easy to process. [0003] At present, in order to strengthen the toughness of PA6 and reduce its production cost, most nylon materials are modified by ad...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/02C08L77/06C08L83/04C08K7/14C08K7/08C08K5/098
CPCC08K2201/003C08K2201/004C08K2201/016C08L77/02C08L2205/02C08L2205/035C08L2205/24C08L77/06C08L83/04C08K7/14C08K7/08C08K5/098
Inventor 杨桂生吴安琪范继贤
Owner HEFEI GENIUS NEW MATERIALS
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