Glass fiber reinforced PA6 composition and preparation method thereof

A composition and glass fiber technology, applied in the field of polymer composite materials, can solve the problems affecting the appearance of PA parts, affecting the performance of compression-resistant parts, etc., to reduce the phenomenon of floating fibers, improve mechanical strength, increase absorption and The effect of the dissipation effect

Active Publication Date: 2017-06-09
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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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

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

[0042] (2) Weigh out 60 parts of dry PA6, 1 part of PA66, 25 parts of rectangular chopped glass fiber, 5 parts of sodium benzoate, 5 parts of surface improver (2 parts of modified ethylene bis-fatty acid amide and 3 parts silicone mixture);

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

[0044] (4) Then add the above-mentioned uniformly mixed materials into the feeding port of the twin-screw extruder;

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

[0046] 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 ...

Embodiment 2

[0048] (1) Dry PA6 at a temperature of 110°C for 4 hours; dry PA66 at a temperature of 110°C for 4 hours;

[0049] (2) Weigh out 40 parts of dry PA6, 10 parts of PA66, 30 parts of rectangular chopped glass fiber, 3 parts of toughening agent (maleic anhydride grafted ethylene-octene copolymer), 5 parts of benzene Sodium formate, 8 parts of surface modifier (a mixture of 3 parts of modified ethylene bis-fatty acid amide and 5 parts of silicone);

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

[0051] (4) Then add the above-mentioned uniformly mixed materials into the feeding port of the twin-screw extruder;

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

[0053] 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...

Embodiment 3

[0055] (1) Dry PA6 at a temperature of 110°C for 4 hours; dry PA66 at a temperature of 110°C for 4 hours;

[0056] (2) Weigh out 40 parts of dry PA6, 5 parts of PA66, 35 parts of rectangular chopped glass fiber, 3 parts of toughener, 5 parts of sodium benzoate (ethylene-methyl acrylate copolymer and ethylene-acrylic acid) Methyl ester-glycidyl methacrylate in a ratio of 1:1), 5 parts of surface improver (a mixture of 3 parts of modified ethylene bis-fatty acid amide and 2 parts of silicone);

[0057] (3) Stir the material weighed in the above step (2) in a high-speed mixer for 3 minutes;

[0058] (4) Then add the above-mentioned uniformly mixed materials into the feeding port of the twin-screw extruder;

[0059] (5) The material is melted and extruded by a twin-screw extruder and pelletized;

[0060] 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 25...

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Abstract

The invention provides a glass fiber reinforced PA6 composition and a preparation method thereof. The glass fiber reinforced PA6 composition is prepared from 30-60 parts of PA6, 1-10 parts of PA66, 25-45 parts of glass fibers, 0-5 parts of a flexibilizer, 5-10 parts of a nucleating agent and 5-10 parts of a surface improver through mixing and extrusion granulation. By utilizing short-cut glass fibers with a rectangular cross section, a fiber floating phenomenon can be reduced; and besides, the short-cut glass fibers are mutually matched with nylon 66 and the surface improver to ameliorate the surface fiber floating caused after the injection molding of a glass fiber reinforced PA6 material and improve the mechanical property and compressive property of the glass fiber reinforced PA6 composition.

Description

technical field [0001] The invention belongs to the field of polymer composite materials, and particularly relates to a glass fiber reinforced PA6 composition 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, which was industrialized in 1939. Polyamide began to develop and produce injection molded products in the 1950s to replace metal to meet the requirements of lightweight and cost reduction of downstream industrial products. PA has good comprehensive properties, including mechanical properties, heat resistance, wear resistance, chemical resistance and self-lubrication, and has a low friction coefficient, as well as certain flame retardancy, and is easy to process. [0003] At present, in order to strengthen the toughness of PA and reduce its production cost, most of the nylon materials are modified by adding appropriate glass fibers, but the proble...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/02C08L77/06C08L83/04C08L51/06C08L23/08C08K7/14C08K5/098C08K5/20B29C47/92B29C48/92
CPCB29C48/92B29C2948/9258B29C2948/92704C08K2201/004C08L77/02C08L2205/02C08L2205/03C08L2205/035C08L2205/06C08L2205/24C08L77/06C08L83/04C08K7/14C08K5/098C08K5/20C08L51/06C08L23/0869C08L23/0884
Inventor 杨桂生吴安琪
Owner HEFEI GENIUS NEW MATERIALS
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