Modified glass fiber reinforced PA6 composition and preparation method thereof

A composition and modification technology, applied in the field of modified glass fiber reinforced PA6 composition and its preparation, can solve the problems of affecting the performance of compression-resistant parts, affecting the appearance of PA parts, etc., to improve mechanical strength, increase Absorption and dissipation effect, effect of reducing glass fiber exposure

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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  • Modified glass fiber reinforced PA6 composition and preparation method thereof
  • Modified glass fiber reinforced PA6 composition and preparation method thereof
  • Modified glass fiber reinforced PA6 composition and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] (1) Dry PA6 at 110°C for 4 hours; PA12 at 110°C for 4 hours;

[0036] (2) Weigh dry 60 parts of PA6, 1 part of PA12, 25 parts of glass fiber, 5 parts of magnesium sulfate whiskers, 5 parts of sodium benzoate, 5 parts of surface modifier (2 parts of modified B a mixture of bis fatty acid amide and 3 parts silicone);

[0037] (3) Stir the material weighed in the above step (2) in a high-speed mixer for 3 minutes;

[0038] (4) Then the above-mentioned uniformly mixed material is added to the feeding port of the twin-screw extruder;

[0039] (5) The material is melted and extruded by a twin-screw extruder, and granulated;

[0040] 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 six...

Embodiment 2

[0042] (1) Dry PA6 at 140°C for 5 hours; PA12 at 120°C for 5 hours;

[0043] (2) take by weighing dry 40 parts of PA6, 10 parts of PA12, 30 parts of glass fiber, 5 parts of magnesium sulfate whiskers, 5 parts of toughening agent maleic anhydride grafted ethylene-octene copolymer, 10 parts The sodium benzoate of part, the surface modifier of 8 parts (the mixture of 3 parts of modified ethylene bis fatty acid amides and 5 parts of silicone);

[0044] (3) Stir the material weighed in the above step (2) in a high-speed mixer for 5 minutes;

[0045] (4) Then the above-mentioned uniformly mixed material is added to the feeding port of the twin-screw extruder;

[0046] (5) The material is melted and extruded by a twin-screw extruder, and granulated;

[0047] 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

[0049] (1) Dry PA6 at 120°C for 5 hours; PA12 at 120°C for 5 hours;

[0050] (2) Weigh dry 40 parts of PA6, 5 parts of PA12, 35 parts of glass fiber, 10 parts of magnesium sulfate whiskers, 3 parts of toughening agent ethylene-methyl acrylate copolymer, 2 parts of ethylene-acrylic acid Methyl ester-glycidyl methacrylate, 8 parts of sodium benzoate, 10 parts of surface modifier (a mixture of 5 parts of modified ethylene bis fatty acid amide and 5 parts of silicone);

[0051] (3) Stir the material weighed in the above step (2) in a high-speed mixer for 5 minutes;

[0052] (4) Then the above-mentioned uniformly mixed material is added to the feeding port of the twin-screw extruder;

[0053] (5) The material is melted and extruded by a twin-screw extruder, and granulated;

[0054] 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 o...

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Abstract

The invention provides a modified glass fiber reinforced PA6 composition and a preparation method thereof, wherein 30-60 parts of PA6, 1-10parts of PA12, 25-45 parts of glass fiber, 5-15 parts of magnesium sulfate crystal whisker, 0-5 parts of a toughening agent, 5-10 parts of a nucleating agent and 5-10 parts of a surface modifier are mixed, extruded and granulated to prepare the modified glass fiber reinforced PA6 composition. According to the present invention, through the mutual matching of the magnesium sulfate crystal whisker and the surface modifier, the bonding state between the glass fiber and the nylon resin is improved, and the separation of the glass fiber and the nylon resin is reduced, such that the glass fiber is well coated in the nylon resin, 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 improve the mechanical property and the compressive resistance of the modified glass fiber reinforced PA6 composition.

Description

technical field [0001] The invention belongs to the field of polymer composite materials, and in particular relates to a modified 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, 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 low-cost downstream industrial products; in addition, PA has good comprehensive properties, including mechanical properties, heat resistance, and wear resistance , chemical resistance and self-lubrication, and low friction coefficient, but also has a certain flame retardancy, 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 adding appropriate glass fibers to them,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/02C08L83/04C08K13/04C08K7/14C08K7/08C08K5/20
CPCC08L77/02C08L2205/025C08L2205/03C08L2205/035C08L83/04C08K13/04C08K7/14C08K7/08C08K5/20
Inventor 杨桂生吴安琪范继贤
Owner HEFEI GENIUS NEW MATERIALS
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